DELLA CC-18K2V Mini Split AC 18K BTU 20.5 SEER2 for Up User Manual

Cassette (CC) Series

Instruction Manual

Installation and Operation Guide

Watch video

before Installation

Welcome to

5 Things to know before installation

The installation location is critical

Handle the refrigerant pipes perfectly

Bundle the line set correctly

Vacuum pumping the refrigerant circuit

Safe electrical connection

Not all places are created equal. Only proper placement of the AC will maximize ecency while balancing the interior

aesthetic. As wall requires for the installation, you need to make sure to get the placement and location right the rst time.

-14-

Thank You for trusting Della as your home comfort solution. We know no better how exicting it must be to have a new and functional AC to make

your living space more comfortable. But AC installation, in reality, is far from being simple. Here are a few things you must know before installing

the AC whether by yourself or by a professional HVAC technician. This will give you an idea of what to look out for installing an AC so that it can

perform at its maximum eciency and every dollar you invest in it pays o.

The refrigerant pipe is one of the most important, if not the most important, parts of the mini split AC system. So, be

sure to understand what the entire process entails. You might need special-purpose tools to shorten and bend the

pipe. Purchaseing lengthening pipes to match your connection might also be necessary. Any ow in the handling of the

refrigerant pipes may cause a refrigerant leak or reduced eciency. The cost to repair or re-install the refrigerant pipe

can quickly frustrate and upset any DIYer, especially when trying to save money by not hiring a professional. Additional

refrigerant might also be needed if you used lengthening pipes or nd any leaks during your install. Further more, it's

always a good idea to test for any refrigerant leaks after completing your installation by using soapy spray or professional

detector tools. Please contact us if you need extra refrigerant.

-22-

The line set contains the refrigerant pipes, drain hose, and electrical wires. A good bundling prevent water condensation

and protects it from extermal elements, as well as matching the exact distance of the installation. No one wants extra line

set dangling around.

-18, 30-

Mini-split AC absolutely needs vacuum pumping in order to perform ecently and prevent refrigerant from reacting with

air moisture and damaing the internal parts of the machine. With a vacuum pump and a micron gauge, the process does

not take very long, but it is important to do it right.

-26-

A safe and properly electrical connection is crucial necessity for the installation. The voltage, power breaker protection,

cable requirement and wiring must correspond to the specications of each model. A poor connection can quickly

becomes a re hazard.

-12, 25-

Page 18

Page 28

Page 44

Page 48

Page 32, 36

Most of the problems emerge from incorrect or poor installation. Installation performed by professional HVAC technician can greatly

reduce the chance of having problems for years to come. On top of that, Della provide extended warranty for professional installation.

If you need assistance or have questions, we are here for you.

support.dellahome.com

24/7 Live Chat

800-863-4143

6:00 a.m. - 4:00 p.m. PST

Monday - Friday

Table of Content

Warning and Safety

Name of Parts

Product Specication

Refrigerant Sensor

Air Filter

Maintenance Routine

Troubleshooting

Disposal Guideline

Warranty

Power ON / OFF

Operation Modes

- Auto, Cool, Heat, Dry, Fan

Change Temperature

Change Fan Speed

Adjust Airow

Turbo Mode

Quiet Mode

Eco Mode

Sleep Mode

Timer

Vicinity Sensor

Display ON / OFF

Self Cleaning

Child Lock

°F / °C

Force Defrost

Wi-Fi Setup

Operation Tips

Front Panel

Remote Control

Before Installation Care and Maintenance

Having Problems?Installation

Before Using

Basic Operation

Advance Function

Installation Preview

Installation Info

Indoor Unit Installation

Outdoor Unit Installation

Circuit Diagram

Vacuum Pumping

Finishing Touch

Check List

Test Run

Warning and Safety

• Read this guide before installation. Failure to follow the safety instructions may result in property damage, serious injury, or death.

• Please Keep this manual.

Danger:

Indicates an IMMINENTLY hazardous situation that, if not avoided, will result in death, serious injury, or serious property damage.

Warning:

Indicates an POTENTIALLY hazardous situation that, if not avoided, will result in death, serious injury, or serious property damage.

Caution:

Indicates an POTENTIALLY hazardous situation that, if not avoided, will result in minor to moderate injury. It may also be used to

indicate unsafe practice.

About Refrigerant

Attention:

Pay additional attention to the instruction.

DO NOT:

Indicates prohibited actions and / or practice.

• The air conditioner is pre-charged with refrigerant. Handle the air conditioner with care and check if there is any

refrigerant leakage during installation. Refrigerants have no odor and can be toxic and ammable. Rapid evaporation of

refrigerant may cause frostbite, cardiac arrhythmia, and / or irritation, as well as cause environmental damage.

• In the case of refrigerant leakage, shut down the appliance and disconnect from the power supply. An inspection must

be performed by a qualied technician.

DANGER

WARNING

CAUTION

Before Installation

v.20250401U

Warning and Safety

• In UL/CSA 60335-2-40, R454B refrigerant is classied as class A2L, which is mildly ammable. Therefore, R454B

refrigerant is suitable for system needing additional refrigerant charge and which will limit the area of the rooms being

served by the system. Similarly, the total amount of refrigerant in the system shall be less than or equal to the allowable

maximum refrigerant charge. The allowable maximum refrigerant charge depends on the area of the rooms being

served by the system.

• For R454B refrigerant, the maximum charge in a room shall be in accordance with the following:

• Maximum Charge (kg)

• Minimum Room Area (m2)

• M = Mass

• Mmax = Maximum charge mass

• Mc = Mass charged

• A = Floor area

• LFL = Lower Flammable Limit, for R454B LFL is 0.296 kg / m3

• or the minimum oor area Amin to install an appliance with refrigerange Mc (kg) shall be in accordance with:

Before Installation

• Mmax = SF x LFL x h0 x A

• Amin = Mc / (SF x LFL x h0)

Additional Information About R454B Refrigerant

WARNING

Refrigerant

LFL

(kg/m3)

h0 (m)

Floor Area (m2)

4 7 10 15 20 25 30

R454B 0.296

1.8 1.10 1.90 2.70 3.80 4.40 4.90 5.40

2.5 1.48 2.59 3.70 5.55 7.40 9.25 11.10

2.8 1.66 2.90 4.14 6.22 8.29 10.36 12.43

Refrigerant

LFL

(kg/m3)

h0 (m)

Charge Amount (M)

0.8 kg 1 kg 1.2 kg 1.4 kg 1.6 kg 1.8 kg 2.0 kg

R454B 0.296

1.8 3.00 3.75 4.50 5.26 6.01 6.76 7.51

2.5 2.16 2.70 3.24 3.78 4.32 4.86 5.41

2.8 1.93 2.41 2.90 3.38 3.86 4.34 4.83

• The total refrigerant charge should be calculated by adding the precharge amount and additional amount.

Pre-charged

Refrigerant

Pre-charge Refrigerant + Addition Refrigerant

= Total Refrigerant Amount

Additional Refrigerant

Before Installation

• When Installing or using the appliance with R454B refrigerant, beware of the following symbols.

• This symbol means this appliance uses a ammable rergerant.

If the refrigerant is leaded and exposed to an external ignition source, there is a rist of re.

• This symbol means that read the operation insturction carefully.

• This symbol means that personnel handling the equipment should reference to the installation manual.

• This symbol means information is available in the installation or operation instruction manual.

Warning and Safety

• Prior to any work on systems containing ammable refrigerants, always check the area to ensure that the risk of

ignition is minimized. All possible ignition sources, such as cigarette, should be kept siciently far away from the site

of installation, repairing, removing, and disposal during which refrigerant can possibly be released to the surrounding

space. Prior to work taking place, the area around the equipment should be surveyed to make sure that there are no

ammable hazards or ignition risk. "No smoking" sign shall be displayed.

• Installation or maintenance of refrigerant system shall be taken under a controlled procedure to minimize the risk of

ammable gas or vapor being present while the work is being performed.

• All working personnal and others around the working area shall be instructed on the nature of work being carried out.

Work in conned spaces shall be avoided. The area around the workspace shall be sectioned o, and ensure that the

conditions within the area have been made safe.

• The area shall be checked with an appropriate refrigerant detector prior to and during work to ensure the technician is

aware of potentially ammable atmospheres.

• If any hot work is to be conducted on the refrigeration equipment or any associated parts, appropriate re extinguishing

equipment shall be available to hand.

• Ensure that the area is in the open or it is adequately ventilated before breaking into the system or conducting any work

that will product heat. A degree of ventilation shall continue during the period that the work is carried out.

• The folliwing checks shall be applied to installations using ammable refrigerants:

• The refrigerant charge amount is in accordance with the room size within which the refrigerant containing parts are

installed.

• The ventilation machinery and outlet are operating adequately and are not obstructed.

• If an indirect refrigerating curcuit is being used, the secondary circuit shall be check for the presence of refrigerant.

• Refrigerant pipe or components are installed in a position where they are unlilely to be exposed to any substance

which may corrode refrigerant containing components, unless the components are constructed of materials which

are inherently resistant to being corroded or are suitable protected against being corroded.

• Under no circumstances shall potential sources of ignition be used in the searching for or detection of refrigerant

leaks. A halide torch or any other detector using naked ame shall not be used.

• Electronic leak detectors shall be used to detect ammable refrigerant. Ensure that the detector is not a potential

source of ignition and is suitable for the refrigerant used.

• Leak detection equipment shall be calibrated to the refrigerant employed and the appropriate percentage of gas

(25% maximum) is conrmed.

• Leak detection uids are suitable for use with most refrigerants, but the use of detergents containing chlorine shall

be avoided as chlorine may react with the refrigerant and corrode the pipe work.

• If a leak is suspected, all open ame shall be removed or extinguished.

• If a leakage of refrigerant found which requires brazing, all of the refrigerant shall be recovered from the system, or

isolated (by means of shut o valves) in a part of the system remote from the leak.

• Oxygen free nitogen shall be purged through the system both before and during the brazing process.

• Detection of ammable refrigerants:

Additional Information About R454B Refrigerant

WARNING

v.20250401U

Before Installation

• The room for the installation, use, repair, and / or storage of this air conditioner should be greater than 54 sq ft / 5m².

• Stop valve cover must be installed on the air conditioner to prevent possible refrigerant leak.

• Refrigerant leakage or damaged pipelines must be inspected and repaired by a qualied HVAC technician.

• The installation of refrigerant pipe work shall be kept to a minimum length.

• The appliance must be installed in accordance with applicable federal, state, and local regulations.

WARNING

Warning and Safety

About Installation

About Power and Electricity

• Do not install or store this appliance in a room with continuously operating ignition sources such as open ames, gas

appliances, or electric heater.

• Do not install the appliance within 20” / 50cm of ammable substances such as alcohol, etc. Or pressurized containers

such as spray cans.

• Do not alter, change, or modify the appliance.

• Prevent children from accessing the work area during installation to prevent unforeseeable accident.

• The base of the outdoor unit must be rmly xed.

• Carry out a test run after the installation.

• Installation of a mini split AC requires specialized training and equipment. Hire a licensed professional if not familiar with

electrical wiring and HVAC system.

• The packaging materials are recyclable and should be disposed of in a separate waste bins.

• The appliance should not be installed in a location where the air outlet of the indoor or outdoor unit is obstructed.

Obstruction of these opening may cause damage or malfunctions to the appliance.

• Imperial units (foot, inch, pound, ounce, fahrenheit degree, etc) used in this instruction manual are conversion from metric

units (meters, centimeters, milimeters, gram, celcius degree, etc). Please refer to the metric units for the most accurate

measurement.

• Ensure that the power voltage corresponds to that stamped on the rating plate.

• A fuse or overload protection device with a suitable capacity for indoor unit must be installed.

• The appliance must be tted with means for disconnection from the main power supply under

over-voltage category III conditions. All electrical wiring must follow federal, state, or local regulations.

• When working on the electric terminals, ensure the appliance is disconnected from the power supply.

• Make sure the appliance is properly grounded to prevent electric shock.

• Do not bend, tug, or compress the power cord during installation to prevent damaging the power cord. Damaged

electrical cord should be replaced by a qualied electrician.

• Do not use power extensions and / or multi-socket modules for appliance installation.

WARNING

CAUTION

Before Installation

Warning and Safety

About Handling and Maintenance

Encountering Troubles

• Do not attempt to disassemble, alter, or modify the appliance.

• Do not ush the air conditioner with water.

• Do not attempt to repair, relocate, modify or reinstall the air conditioner by yourself. Incorrect work could cause electric

shocks, re or damage. Contact a qualied technician.

• In the case of the appliance emitting smoke, burning smell, leaking water, or making unusual noise, shut down the

appliance and disconnect from the power supply immediately. Contact a qualied technician for inspection and repair.

• Before cleaning the unit, the appliance must by shut down and disconnect from the power supply for at least 5 minutes.

WARNING

About Operation

• Do not disconnect the appliance from the power supply before shutting o the appliance. This might create a spark and

potentially cause a re.

• Do not place ammable substances near the appliance.

• Do not climb onto or place any objects on the appliance.

• Do not insert any objects into the appliance to prevent damage or injury.

• Do not obstruct the air inlet or outlet.

• Do not operate the appliance with wet hands.

• If the appliance is used in areas without the possibility of ventilation, precautions must be taken to prevent any leaks of

refrigerant.

• Only use the appliance as instructed in this booklet. These instructions are not intended to cover every possible

condition and situation. As with any electrical household appliance, common sense and caution are therefore always

recommended for usage and maintenance.

• This appliance is designed and made for air conditioning in domestic environments only. It must not be used for any

other purpose such as drying clothes or cooling foods.

• This appliance can be used by children 8 years old or above and persons with reduced physical, sensory, or mental

capabilities, or lack of experience and knowledge if they have been given supervision or instruction concerning the use

of the appliance in a safe way and understand the hazards involved.

• Children shall not play with the appliance.

WARNING

CAUTION

v.20250401U

Before Installation

Name of Parts

Wiring Terminal

with Wiring Diagram

Electrial Wire

Drain Hose

Refrigerant Pipe

Indoor Unit

Outdoor Unit

Refrigerant Valves

Valve Cover

Front Panel

Air Return Grill

Air Outlet

-00-

Control Box

with Wiring Diagram

Page 60

NOTE: Tools marked with * are needed for shortening the refrigerant pipe and / or electrical wire to the exact desired length.

ONLY a qualied HVAC technician should attempt altering the pipe length and / or the wire length.

Tools Needed (Not included)

Before Installation

Flexible Drain Hose

Hose Clamp

Phippips Pan Head Screw

Cable Clamp

Rubber Pad

Name of Parts

Zip Tie

Phillips Pan Head Bolt

Remote Control, Holder 1x

Battery 2x

Installation Template

• Screw Driver

• Hole Saw

• Wall Saw / Power Saw

• Refrigerant Leak Detector / Liquid Leak Detector

• Allen Wrench

• Spanner

• Torque Wrench

• Measuring Tape

• Bullseye Spirit Level

• Power Drill

• Thermometer

• Vacuum Pump

• Drop-In Anchor

• M10 Threaded Rod

• M10 Washer

• Threaded Rod Wrench

• PVC Drain Pipes

• PVC pipe cutter

• Insulation Foam

• Floor MountFloor Mounting Base Kit / Wall Mount Kit

• Power Supply Cable

• Micron Gauge / AC manifold Gauge

• Copper Pipe Bender / Spring Bender

• HVAC sealant / Nylog

• Caulk

• Wall Sleeve and Cover

• Tubing Cutter*

• Pipe Reamer*

• Tubing Flaring Tool*

• Wire cutter*

THEM AINBODYO F

AIR CONDITIONER

CEILING

HEXNUT

(ADJUSTING HORIXON)

INSTALLATION

CLIVER

PANEL

OPERATION MANUAL

OF INSTALLATION PAPERBOARD

1. IN ACCORDANCEW ITHI NSTALLATIONP APERBOARD OUTLINE,

PLEASEO PENA HOLE WITHDIMENSIONS8 90 MMx 890M M

NOTICE:T HE CEILINGC ASSETTEC ENTERI SI NA CCORDANCE

WITH THEMAIN BODYC ENTEROFA IR CONDITIONER

2. PLEASE DETERMINET HE LOCATIONO FI NSTALLATIONCLIVER

ACCORDINGT OI NSTALLATION CLIVER HOLEO FI NSTALLATION

PAPERBOARDSQUARE

3. WHEN INSTALLING ON NEWCEILING,F IX PAPERBOARDON THE

MAIN BODYO F MOUNTEDA lR CONDITIONER FORR EFERENCET O

DETERMINET HE SIZE,L OCATION, ANDC ENTERO FC EILING

CASSETTE

NOTICE: PLEASEA DJUST EVENLY WITH FOUR HEXN UTS, AND

ENSURE THEMAINB ODYO FAIR CONDITIONERI SLEVEL

663±1

691±1

357

±287

651±1

689±1

067

087

XX-A2005-00149 9

v.20250401U

Product Specication (Cassette Unit)

Before Installation

048-CC-9K2V 048-CC-12K2V 048-CC-18K2V 048-CC-24K2V

Power Supply 208 V - 230 V / 60 Hz / 1P 208 V - 230 V / 60 Hz / 1P 208 V - 230 V / 60 Hz / 1P 208 V - 230 V / 60 Hz / 1P

Rated Cooling Capacity (Btu / h) 9000 12000 18000 24000

Rated Heating Capacity (Btu / h) 9000 12000 18000 24000

Noise Level Indoor Unit 32 - 43 dBA 32 - 45 dBA 37 - 48 dBA 37 - 51 dBA

Dimension

Indoor Unit

22.44" x 22.44" x 9.65"

570 mm x 570 mm x 245 mm

22.44" x 22.44" x 9.65"

570 mm x 570 mm x 245 mm

22.44" x 22.44" x 9.65"

570 mm x 570 mm x 245 mm

33.07" x 33.07" x 9.65"

840 mm x 840 mm x 245 mm

Indoor Panel

25.59" x 25.59" x 2.36"

650 mm x 650 mm x 60 mm

25.59" x 25.59" x 2.36"

650 mm x 650 mm x 60 mm

25.59" x 25.59" x 2.36"

650 mm x 650 mm x 60 mm

37.40" x 37.40" x 2.87"

950 mm x 950 mm x 73 mm

Net Weight

Indoor Unit 32 lb / 14.5 kg 32 lb / 14.5 kg 32 lb / 14.5 kg 51.8 lb / 23.5 kg

Indoor Panel 6 lb / 2.7 kg 6 lb / 2.7 kg 6 lb / 2.7 kg 13.2 lb / 6 kg

Suitable Area Up to 400 sq. ft Up to 550 sq. ft Up to 1000 sq. ft Up to 1500 sq. ft

Air Flow 113 - 193 CFM 112 - 211 CFM 149 - 259 CFM 284 - 492 CFM

Moisture Removal (per hour) 2.3 pints / 1.1 L 3.4 pints / 1.6 L 4.7 pints / 2.2 L 5.5 pints / 2.6 L

Refrigerant R454B R454B R454B R454B

Condensate Drain Connection Diameter OD ø 32 mm OD ø 32 mm OD ø 32 mm OD ø 32 mm

Product Specication (Outdoor Unit)

Before Installation

048-TP-9K2V-24S-OUT 048-TP-12K2V-24S-OUT 048-TP-18K2V-23S-OUT 048-TP-23K2V-23S-OUT

Power Supply 208 V - 230 V / 60 Hz / 1P 208 V - 230 V / 60 Hz / 1P 208 V - 230 V / 60 Hz / 1P 208 V - 230 V / 60 Hz / 1P

Rated Cooling Capacity (Btu / h) 9500 12000 16000 23000

Rated Heating Capacity (Btu / h) 9500 12500 18000 25000

Cooling

Power Consumption 680 W 970 W 1390 W 1860 W

Rated Current 3.0 A 4.4 A 6.2 A 8.3 A

Heating

Power Consumption 730 W 925 W 1360 W 2000 W

Rated Current 3.3 A 4.2 A 6.1 A 9.0 A

Noise Level Outdoor Unit 50 dBA 52 dBA 53 dBA 54 dBA

Dimension Outdoor Unit

31.88" x 12.00" x 21.61"

810 mm x 305 mm x 549 mm

31.88" x 12.00" x 21.61"

810 mm x 305 mm x 549 mm

36.49" x 14.96" x 27.51"

927 mm x 380 mm x 699 mm

38.50” x 16.57” x 31.61”

978 mm x 421 mm x 803 mm

Net Weight Outdoor Unit 52.7 lb / 23.9 kg 58.4 lb / 26.5 kg 90.41 lb / 41 kg 104.7 lb / 47.5 kg

Refrigerant R454B R454B R454B R454B

v.20250401U

Product Specication (Outdoor Unit)

Before Installation

048-TLP-MODU-1D2 048-TLP-MODU-1D3 048-TLP-MODU-1D4 048-TLP-MODU-1D5

Power Supply 208 V - 230 V / 60 Hz / 1P 208 V - 230 V / 60 Hz / 1P 208 V - 230 V / 60 Hz / 1P 208 V - 230 V / 60 Hz / 1P

Rated Cooling Capacity (Btu / h) 18000 27000 35000 42000

Rated Heating Capacity (Btu / h) 20000 28000 36000 42000

Cooling

Power Consumption 1370 W 2020 W 2930 W 3550 W

Rated Current 6.1 A 9.1 A 13.1 A 15.9 A

Heating

Power Consumption 1410 W 1980 W 2680 W 3260 W

Rated Current 6.3 A 8.9 A 12 A 14.6 A

Noise Level 58 dBA 62 dBA 65 dBA 65 dBA

Dimension

36.50" x 27.52" x 14.96"

927 mm x 699 mm x 380 mm

38.50" x 31.61" x 16.57"

927 mm x 803 mm x 421 mm

42.57" x 33.58" x 18.42"

1074 mm x 853 mm x 468 mm

42.57" x 33.58" x 18.42"

1074 mm x 853 mm x 468 mm

Net Weight 99.2 lb / 45 kg 127.9 lb / 58 kg 169.8 lb / 77 kg 198.4 lb / 90 kg

Refrigerant R454B R454B R454B R454B

Number of Indoor Unit Connection 2 3 4 5

Before Installation

Installation Preview

≥ 10.8" / 27.5 cm

13 - 13.5 cm

5.1" - 5.3"

≥ 39" / 100 cm

(From the closest wall)

≥ 39" / 100 cm

(From the closest wall)

≥ 98" / 250 cm

(From the ground)

≥ 11.8" / 30 cm

≥ 19.7" / 50 cm

Choose the installation location

-00-

Hanging the indoor unit

-00-

Placing the outdoor unit

-00-

* For single zone connection

Finsihing the indoor unit

-00-

Vacuum pumping

-00-

Finishing the outdoor unit

-00-

Check list

-00-

Test run

-00-

Outdoor unit connection

• Connect the refrigerant pipes

-00-

• Connect the electrical wires

-00-

Indoor unit connection

• Connect the drain hose to the indoor unit

-00-

• Connect refrigerant pipes into the indoor unit

-00-

• Connect the electrical wire into the indoor unit

-00-

Ceiling hole, Refrigerant pipes, drain hose,

and electrical wires preperation

-00-

Install hanging rods

-00-

Page 18

Page 24

Page 27

Page 30

Page 23

Page 21-22

Page 19-20

Page 35

Page 36

Page 48

Page 49

Page 50

Page 33-34

Page 31-32

Page 44-47

9K 12K 14K 24K

Standard Length

per Indoor Unit*

24.6 ft / 7.5 m

Max. Distance

per Indoor Unit*

49 ft / 15 m 65 ft / 20 m

Max. Elevation

per Indoor Unit*

33 ft / 10 m 49 ft / 15 m

≥ 79" / 200 cm

v.20250401U

Installation

Installation Info (Power Supply and Breaker Size info )

Power Supply and Breaker Size

048-TP-9K2V-24S-OUT 048-TP-12K2V-24S-OUT 048-TP-18K2V-23S-OUT 048-TP-23K2V-23S-OUT

Power Supply 208 V - 230 V / 60 Hz / 1P 208 V - 230 V / 60 Hz / 1P 208 V - 230 V / 60 Hz / 1P 208 V - 230 V / 60 Hz / 1P

Cooling

Power Consumption 680 W 970 W 1390 W 1860 W

Rated Current 3.0 A 6.2 A 6.2 A 8.3 A

Heating

Power Consumption 730 W 925 W 1360 W 2000 W

Rated Current 3.3 A 4.4 A 6.1 A 9.0 A

Min. Circuit Ampacity 10 A 11 A 12 A 17 A

Min. Wire Size (American Wire Gauge) 16 AWG 16 AWG 16 AWG 14 AWG

Breaker Size 15 A 15 A 20 A 25 A

048-TLP-MODU-1D2 048-TLP-MODU-1D3 048-TLP-MODU-1D4 048-TLP-MODU-1D5

Power Supply 208 V - 230 V / 60 Hz / 1P 208 V - 230 V / 60 Hz / 1P 208 V - 230 V / 60 Hz / 1P 208 V - 230 V / 60 Hz / 1P

Cooling

Power Consumption 1370 W 2020 W 2930 W 3550 W

Rated Current 6.1 A 9.1 A 13.1 A 15.9 A

Heating

Power Consumption 1410 W 1980 W 2680 W 3260 W

Rated Current 6.3 A 8.9 A 12 A 14.6 A

Min. Circuit Ampacity 16 A 18 A 22 A 28 A

Min. Wire Size (American Wire Gauge) 12 AWG 12 AWG 10 AWG 10 AWG

Breaker Size 25 A 30 A 35 A 45 A

Refrigerant and Pipe Set Info

048-TP-9K2V-24S-OUT 048-TP-12K2V-24S-OUT 048-TP-18K2V-23S-OUT 048-TP-23K2V-23S-OUT

Standard Length 24.6 ft / 7.5 m 24.6 ft / 7.5 m 24.6 ft / 7.5 m 24.6 ft / 7.5 m

Max. Distance Between Indoor and Outdoor Unit 49 ft / 15 m 49 ft / 15 m 65 ft / 20 m 65 ft / 20 m

Max. Elevation Between Indoor and Outdoor Unit 33 ft / 10 m 33 ft / 10 m 49 ft / 15 m 49 ft / 15 m

Type of Refrigerant R454B R454B R454B R454B

Factory Refrigerant Pre-charge for up to 25 ft pipe 25.04 oz / 710 g 35.27 oz / 1000 g 45.50 oz / 1290 g 55.03 oz / 1560 g

Additional Refrigerant Charge 0.11 oz / ft (10 g / m) 0.11 oz / ft (10 g / m) 0.11 oz / ft (10 g / m) 0.11 oz / ft (10 g / m)

Liquid

Line

Pipe Diameter 1/4” 1/4” 1/4" 1/4”

Torque Parameter

18 - 20 N-M / 13.3 - 14.8 lbf-ft /

1.8 - 2.0 kgf-m

18 - 20 N-M / 13.3 - 14.8 lbf-ft /

1.8 - 2.0 kgf-m

18 - 20 N-M / 13.3 - 14.8 lbf-ft /

1.8 - 2.0 kgf-m

18 - 20 N-M / 13.3 - 14.8 lbf-ft /

1.8 - 2.0 kgf-m

Gas Line

Pipe Diameter 3/8” 3/8” 3/8” 1/2”

Torque Parameter

30 - 35 N-M / 22.1 - 25.8 lbf-ft /

3.0 - 3.6 kgf-m

30 - 35 N-M / 22.1 - 25.8 lbf-ft /

3.0 - 3.6 kgf-m

30 - 35 N-M / 22.1 - 25.8 lbf-ft /

3.0 - 3.6 kgf-m

45 - 50 N-M / 33.2 - 36.9 lbf-ft /

4.6 - 5.1 kgf-m

Installation Info (Refrigerant and Pipe Set info )

v.20250401U

Installation Info (Refrigerant and Pipe Set info )

Refrigerant and Pipe Set Info

NOTE: 1 2 3/4" to 1/2" Lineset converter and 3/8" to 5/8" Lineset converter should only be used with indoor unit that equiped with 1/2" or 5/8" gas line.

048-TLP-MODU-1D2 048-TLP-MODU-1D3 048-TLP-MODU-1D4 048-TLP-MODU-1D5

Standard Length 16.4 ft / 5 m 16.4 ft / 5 m 16.4 ft / 5 m 16.4 ft / 5 m

Max. Distance Between Indoor and Outdoor Unit 85 ft / 25 m 98 ft / 30 m 98 ft / 30 m 98 ft / 30 m

Max. Elevation Between Indoor and Outdoor Unit 49 ft / 15 m 49 ft / 15 m 49 ft / 15 m 49 ft / 15 m

Type of Refrigerant R454B R454B R454B R454B

Factory Refrigerant Pre-charge for up to 25 ft pipe 60.01 oz / 1700 g 77.66 oz / 2200 g 98.84 oz / 2800 g 120.02 oz / 3400 g

Additional Refrigerant Charge 0.11 oz / ft (10 g / m) 0.11 oz / ft (10 g / m) 0.11 oz / ft (10 g / m) 0.11 oz / ft (10 g / m)

Liquid Line

Pipe Diameter 1/4" 1/4" 1/4" 1/4"

Torque Parameter

18 - 20 N-M / 13.3 - 14.8 lbf-ft /

1.8 - 2.0 kgf-m

18 - 20 N-M / 13.3 - 14.8 lbf-ft /

1.8 - 2.0 kgf-m

18 - 20 N-M / 13.3 - 14.8 lbf-ft /

1.8 - 2.0 kgf-m

18 - 20 N-M / 13.3 - 14.8 lbf-ft /

1.8 - 2.0 kgf-m

Gas Line

Pipe Diameter 3/8" 3/8" 3/8" 3/8"

Torque Parameter

30 - 35 N-M / 22.1 - 25.8 lbf-ft /

3.0 - 3.6 kgf-m

30 - 35 N-M / 22.1 - 25.8 lbf-ft /

3.0 - 3.6 kgf-m

30 - 35 N-M / 22.1 - 25.8 lbf-ft /

3.0 - 3.6 kgf-m

30 - 35 N-M / 22.1 - 25.8 lbf-ft /

3.0 - 3.6 kgf-m

3/8” to 1/2”

Lineset

Adapter1

For Pipe Diameter N/A 1/2" 1/2" 1/2"

Torque Parameter N/A

45 - 50 N-M / 33.2 - 36.9 lbf-ft /

4.6 - 5.1 kgf-m

45 - 50 N-M / 33.2 - 36.9 lbf-ft /

4.6 - 5.1 kgf-m

45 - 50 N-M / 33.2 - 36.9 lbf-ft /

4.6 - 5.1 kgf-m

3/8” to 5/8”

Lineset

Adapter2

For Pipe Diameter N/A N/A 5/8" 5/8"

Torque Parameter N/A N/A

60 - 65 N-M / 44.3 - 48.0 lbf-ft /

6.6 - 6.6 kgf-m

60 - 65 N-M / 44.3 - 48.0 lbf-ft /

6.6 - 6.6 kgf-m

Installation Info

Picking a Installation Location for the Cassette Indoor Unit

Picking a Installation Location for the Outdoor Unit

• Do not install the outdoor unit near a heat source, steam, or flammable gas.

• Do not install the outdoor unit in windy or dusty locations.

• Do not install the outdoor unit in places where people often pass.

• Avoid installing the outdoor unit in places where it will be exposed to direct sunlight.

NOTE: If necessary, build a protection that does not interfere with the airflow.

• Make sure there is enough space around the outdoor unit to circulate air.

-00-

• Outdoor unit must be placed in a safe and solid location.

• The outdoor unit should ideally be placed on a elevated concrete pad.

• If installing in snowy region, it is recommended the outdoor unit to be installed above the seasonal snow level.

Installation

Page 14

• Ensure the installation complies with the minimum clearance space surrounding the unit and is within the maximum piping length and

maximum elevation defined in the installation information.

-00-

• Make sure the ceiling and it's structure is strong enough to hold the weight of the unit and prevent it from vibration.

• Make sure the air return grill and outlet are clear of any obstruction.

• The unit should be installed to a place where it is accessible for maintenance.

• Do not install the unit in a kitchen where aerosolized grease, odor, and/or smoke may be present.

• Do not installi the unit in a laundry room or by a swimming pool.

• There should not be any heat source near the indoor unit.

• Avoid installing the unit near windows or doors.

Page 16, 17

v.20250401U

Indoor Unit Installation

Installation

Open Ceiling Hole for Installation

1. Before installation work, make sure the structure ceiling is strong enough to hold the weight of the indoor unit.

2. Plan out the installation location in accordance to the clearance measurement table below.

3. Cut open the ceiling for the installation. Make sure the opening size is smaller than the cassette unit panel.

Wall

Attic Height

Wall Clearance Ceiling hole Opening Length

Panel Length

Panel and Ceiling Overlap

Attic

Clearance

048-CC-9K2V-IN 048-CC-12K2V-IN 048-CC-18K2V-IN 048-CC-24K2V-IN

Attic Clearance > 2" / 50mm > 2" / 50mm > 2" / 50mm > 2" / 50mm

Attic Height > 10.8" / 275mm > 10.8" / 275mm > 10.8" / 275mm > 10.8" / 275mm

Wall Clearance > 39" / 1000mm > 39" / 1000mm > 39" / 1000mm > 39" / 1000mm

Panel Length

25.59"x 25.59" 25.59"x 25.59" 25.59"x 25.59" 37.40"x 37.40"

650mm x 650mm 650mm x 650mm 650mm x 650mm 950mm x 950mm

Panel and Ceiling

Overlap

~ 1" / 25mm ~ 1" / 25mm ~ 1" / 25mm ~ 1" / 25mm

Room / Dropped

Ceiling

Structure Ceiling

Installation

Indoor Unit Installation

Prepare Refrigerant Lineset, Drain Pipe, and Electrical Cable

1. Route the refrigerant lineset, drain pipe, and electrical cable from the cassette unit installation location to the outdoor unit installation

location.

Detail information on handling refrigerant line set on -00- .

Detail information on drain pipe on -00- .

2. Make sure the drain pipe is slanted downward to prevent condensation and water from backflowing into the cassette unit.

3. Depending on the building, you can route the lineset toward the outside through an opening on the wall or the soffit.

Cassette Unit

Installation Location

Cassette Unit

Installation Location

Page 28

Page 24-26

0.2" - 0.4" / 5 - 10 mm

Wall Sleeve

Sleeve Cover

Putty / Caulk

Outdoor Indoor

• Always insert the sleeve into the wall hole and seal the surrounding with putty / caulk.

This will prevent water, insects, or small animals from getting into the house.

v.20250401U

Indoor Unit Installation

Installation

Attaching Threaded Rods for Hanging

1. Reference the graphics below and mark the threaded rods attaching locations.

Make sure the cassette refrigerant ports and drain port is facing the pre-routed refrigerant lineset and drain pipe.

2. Drill pilot holes on the marks.

3. Choose and attach the suitable anchor for your structure ceiling.

4. Cut M10 threaded rods into correct length and attach them into the anchors.

048-CC-9K2V-IN

048-CC-12K2V-IN

048-CC-18K2V-IN

048-CC-24K2V-IN

20.8" / 528mm

Bottom View

30.7" / 780mm

27.2" / 690mm

20.8" / 528mm

22.4" / 570mm

33.1" / 840mm

5.1" - 5.3" / 130 - 135mm

33.1" / 840mm

22.4" / 570mm

Room / Dropped

Ceiling

Hanging Bracket

Installation

Attaching Threaded Rods for Hanging

On Wood Beam

On Concrete / Brick

On Steel Beam

Roof Beam

M10 Threaded Rod

Drop-in Anchor

M10 Threaded Rod

Concrete / Brick

2" / 50mm

Steel Beam

• It is recommended to use threaded rod wrench to tighten the threaded rod into the drop in anchor and make sure it can support the

weight of the cassette unit and withstand operating vibration.

Indoor Unit Installation

v.20250401U

Installation

Indoor Unit Installation

Hanging the Cassette Unit

1. Attach M10 nuts and M10 washers to the threaded rod at the hanging height.

2. Align the cassette unit into the ceiling opening and hang the hanging brackets to the M10 washers.

3. Level the unit all around with a bullseye spirit level and tighten the M10 nuts to secure the unit in place.

M10 Threaded Rod

Cassette Unit Metal Hanging Bracket

M10 Nut

M10 Washer

M10 Nut

Cassette Unit

• Lift the cassette unit to the ceiling with 2 people, or with the help of a power lifter. Carring the cassette unit alone without assisstant

would result in injury.

• A bull's eye level is recommended to be used to level the cassette unit. The cassette unit is equipped with a built-in drain pump and

oat switch. Failing to level the unit may cause oat switch to malfunction and cause water leakage.

5.1" - 5.3" / 130 - 135mm

Room / Dropped

Ceiling

Hanging Bracket

Installation

Indoor Unit Installation

Connecting the Drain Pipe to the Cassette Unit

1. Attach drain pipe to the cassette unit.

2. Make sure the connection is tightly secured.

3. Wrap the connection and the drain pipe with insulating foam.

• Cassette unit has a drain pump that support upward drainage.

• Make sure the drain pipe lead upward no higher than 14" / 360mm and back downward to the main drain pipe.

Drain Port

<14" / 360mm

<3.9" / 100mm

Drain PortFlexable Drain Hose

Ø32mm PVC

Drain Pipe

PVC Pipe Cement

Drain Clamp

Upward Drainage

Main drain pipe must slant downward toward the outside

• For the ease of future maintenance and servicing, use a

drain clamp to secure the drain hose to the drain port.

• The drain pipe connection must be wrapped with insualting foam to prevent condensation from building up on the pipe's surface,

which may result in water dripping in the ceiling.

• The following should be used for drain pipe installation:

Drainage Pipe Material Ø32mm Polyvinyl Chloride (PVC) pipe

Heat Insulation Material 10mm think Foamed Polyethylene Insulation Plate

v.20250401U

Installation

Indoor Unit Installation

• The total pipe length traveling outside should be kept

within 65.5' / 20m.

• When using a long drain pipe, hang the pipe in place

every 5' - 6.5' / 1.5 - 2m.

• Dran pipe should slope down at a gradient over 1/100.

• The flexable hose should be kept within 45° from the

drain port.

• Do not slant the drain pipe upward.

• Do not bend the flexable pipe upward.

• Upward drainage installation should be straightly

followed on -00- .

• Wrap the drain hose, drain pipe, and all connections

with insulation foam. (10mm think foamed polyethylene

insualtion plate)

< 65.5' / 20m

≤45°

5' - 6.5'/ 1.5 - 2m

Gradient

>1/100

Connecting the Drain Pipe to the Cassette Unit

Page 24

Installation

Indoor Unit Installation

• Drain pipe should be tested after the installation and make sure there is no leak.

• Remove the cover from the cassette unit.

• Slowly stow 600ml of water into the drain channel inside the unit. Avoid touching the drain pump motor.

• Disconnect the water level switch and power 220V AC to the terminal board, and the drain pump will start up by itself.

• After running the drain pump for 2 minutes, reset the water level pin. the drain pump motor will stop after 22 minutes.

Drainage Test

• Any leakage along the drain line must be addressed before using the AC.

Drain Port

600ml water

9K - 18K 24K

Drain Port

600ml water

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Installation

Indoor Unit Installation

Connecting the Refrigerant Pipe to the Cassette Unit

1. Remove the protective caps on the cassette unit's refrigerant ports.

2. Align refrigerant pipes straight to the refrigerant ports, and hand tighten the flaring nuts.

3. Tighten the flaring nuts with torque wrench to the spec.

4. Wrap and cover the connection with insulating foam and tape.

• A thin layer of nylog can be applied to the inside of the are to provide better seal. (OPTIONAL)

• Make sure no nylog is on the outside of the are.

Thin layer of nylog

(OPTIONAL)

Pipe Diameter 1/4" 3/8” 1/2” 5/8”

Torque Parameter

18 - 20 N-M

13.3 - 14.8 lbf-ft

1.8 - 2.0 kgf-m

30 - 35 N-M

22.1 - 25.8 lbf-ft

3.0 - 3.6 kgf-m

45 - 50 N-M

33.2 - 36.9 lbf-ft

4.6 - 5.1 kgf-m

60 - 65 N-M

44.3 - 48.0 lbf-ft

6.1 - 6.6 kgf-m

• Connection must be torque tighten to prevent leak. Do not over tighten.

• Refrigerant piping and torque requirement for specic model is on -00- .

• Refrigerant pipe and its connection must be insulated to prevent condensation from forming on the surface which would result in a

water leak.

Hold Torque Tighten

Refrigerant Port Refrigerant Pipe

Page 16, 17

Installation

Indoor Unit Installation

1. Unroll the included refrigerant pipe.

2. Remove the cover and make sure the ports are clean and smooth.

3. In the case of a imperfect flaring or the pipe needs to be shorten for the installation, refrigerant pipe should be cut and flare by qualified

technician.

-00-

Imperfect Flaring Dirty Flaring

• Do not pull the refrigerant pipe to prevent the pipe from kinking or bending.

Preparing the Refrigerant Pipe

Page 29

Pipe Bender

Spring Bender

• Use a pipe bender or spring bender to shape the refrigerant pipes along wall and corners. Bending the pipe without bending tools

would easily kink or damage the pipe, which would cause refrigerant starvation, or leakage in the system.

v.20250401U

Installation

Indoor Unit Installation

Cutting and Flaring Refrigerant Pipe

1. Cut the copper pipe with a pipe cutter.

2. Remove any burrs or rough edges with a reamer with the pipe facing downward.

NOTE: The opening of the pipe must face toward the ground to prevent chips or dust from entering the pipe.

3. Insert the flare nut to the pipe.

4. Use the flaring tool to flare the copper pipe. The flaring angle must match to that of the refrigerant lines from the unit.

Pipe Cutter

Flaring Nut

Flaring Tool

Refrigerant Pipe

(Must face downward)

• Any refrigerant pipe alternation should only be done by qualied technician. Incorrect work may cause refrigerant leak, reduce cooling /

heating eciency, damage to the unit. Warranty does not cover any damage(s) caused by incorrect refrigerant pipe alternation.

Reamer

WARNING

Installation

Indoor Unit Installation

Connecting the Electrical Cable to the Cassette Unit

1. Remove the terminal covers from the cassette unit.

2. Insert the electrical cable through the opening on the unit casing into the terminal box.

3. Connect the wires to the corresponding termanal and secure the cable using the cable clamp.

NOTE: Exact electrical diagram can be found on the back of the terminal cover.

Terminal Cover

Electrical Cable

v.20250401U

Installation

Indoor Unit Installation

Attaching the Front Panel

1. Remove the air return grill and detach the panel corner covers from the panel.

2. Align the panel to the cassette unit. The panel has markings at the corners to help determind the drain corner and refrigerant port corner.

3. Hang the hanging hooks on the panel to the metal taps on the unit, then tighten the screws until the panel is lightly press against the ceiling.

Drain Side

Pipe Side

• Markings on the panel indicates the pipe and drain side.

• Arrange the electrical cable from the panel so that it does not get pinched

between the panel and the cassette unit.

Hanging Hook

Unlock

Unscrew

9K - 18K

24K

Installation

Indoor Unit Installation

Connecting the Cable from the Panel to The Cassette Unit

1. Connect the cables from the panel to the ports on the cassette unit.

2. Manage the cables using zip ties and arrange them away from movable parts and avoid obstructing the air return.

3. Attach the terminal covers back to its original place.

4. Reattach the air return grill onto the panel.

Display Board Connection Port

Step Motor Connectors

Power Terminal

Lock

Screw

24K9K-18K

v.20250401U

Installation

1. Place a concrete pad on the installation location.

NOTE: You do not need a concrete pad if the ground is concrete.

2. Mount the indoor unit on a mounting stand or base kit.

NOTE: Rubber foot pads can be placed between the outdoor unit and the mounting kit to reduce vibration or noise.

3. Drill holes on the concrete pad or concrete ground.

4. Secure the mounting stand or base kit on the concrete with concrete anchor bolts.

Outdoor Unit Installation

Secure the Outdoor Unit (Ground Installation)

Concrete Pad (Not Included)

Mounting Stand / Base Kit

(Not Included)

Concrete Pad (Not Included)

• Outdoor unit should be installed on a elevated mounting stand with snow cover if using in a snowy region.

Elevated snow cover (Not included)

Rubber foot pad

(Optional)

Installation

Outdoor Unit Installation

Secure the Outdoor Unit (Wall Installation)

1. Drainage joint installation is recommended for heat pump models.

2. Insert drainage joint into the bottom hole of the outdoor unit.

3. Connect one end of the drain hose to the joint and the other end to your desired drainage point.

1. Measure the distance between the outdoor unit’s legs.

2. Mount the wall mounting bracket on the wall.

3. Secure the outdoor unit on the wall mounting bracket.

The outdoor unit can be fixed on a wall mounting bracket if there is no ground mounting option.

Outdoor unit drainage helps prevent condensation or frost inside the unit during cold weather.

Wall Mount Bracket

(Not Included)

• The wall mounting bracket and the wall must be able to support at least 4 times the weight of the outdoor unit.

Attach Drainage Port and Hose

CAUTION

Drainage Joint

Ø0.6" / Ø15 mm

Drain Hose

v.20250401U

Installation

Indoor and Outdoor Unit Installation

Connect the Refrigerant Pipes to the Outdoor Unit

1. Unscrew the screws on the valve cover, press it down gently and remove the cover from the outdoor unit.

2. Remove plastic caps from the end of the valves.

3. Align the refrigerant pipes to the outdoor unit valve, then tighten the nut by hand.

4. Use a torque wrench to tighten the nut according to the torque requirement.

Remove Plastic Caps

Hold

Torque Tighten

Pipe Diameter 1/4" 3/8” 1/2” 5/8”

Torque Parameter

18 - 20 N-M

13.3 - 14.8 lbf-ft

1.8 - 2.0 kgf-m

30 - 35 N-M

22.1 - 25.8 lbf-ft

3.0 - 3.6 kgf-m

45 - 50 N-M

33.2 - 36.9 lbf-ft

4.6 - 5.1 kgf-m

60 - 65 N-M

44.3 - 48.0 lbf-ft

6.1 - 6.6 kgf-m

• Connection must be torque tighten to prevent leak. Do not over tighten.

• Refrigerant piping and torque requirement for specic model is on -00- .

• A thin layer of nylog can be applied to the inside of the are to provide better seal. (OPTIONAL)

• Make sure no nylog is on the outside of the are.

Thin layer of nylog

(OPTIONAL)

Page 16, 17

Terminal Block

Cable Clamp

Indoor and Outdoor Unit Installation

Connect the Electrical Wire

1. Unscrew the screws from the wiring cover, press the cover downward gently, and remove from the outdoor unit.

2. Unscrew the cable clamp.

3. Insert the electrical cable from the indoor unit through the opening on the cover, then connect the wires to the outdoor unit terminal.

4. Insert power supply cable (not included) to the opening on the cover, then connect the wires to the outdoor unit terminal.

5. Turn off any power from the power supply, and connect the wires to the power supply circuit box.

Exact power supply cable and breaker size requirement on -00-

6. Reinstall the wiring cover to its original place.

Installation

Page 15

• Electrical wiring must be done by a qualified technician or electrician. Failing to connect the wires correctly will cause short circuit, a

fire, and property damage.

• Do not use the communication cable as power supply cable.

WARNING

v.20250401U

Indoor Terminal Outdoor Terminal

Power Supply

w/ Breaker

Installation

Indoor and Outdoor Unit Installation

Connect the Electrical Wire

For Single Zone Outdoor Unit

For Multi Zone Outdoor Unit

Indoor TerminalOutdoor Terminal

Power Supply

w/ Breaker

Installation

Indoor and Outdoor Unit Installation

Indoor Unit Circuit Diagram (Cassette Type)

048-CC-9K2V-IN

048-CC-12K2V-IN

048-CC-18K2V-IN

048-CC-24K2V-IN

AP1

CN10

CN4S1P1

CN23

(Optional)

DC Pump

1 12 23 34

ON ONDP DP

GNYE

GNYE(GN)

Outdoor

Unit

BK BU BN

SW1 Description

Type SW1 Dial Code

12K

18K

24K

Building

Management

System 1

(Optional)

Building

Management

System 2

(Optional)

MP1

CN24 CN22

CN18CN29CN28

Display Board

CN2

CN3

CN19

Step Motor 1

DOOR-F

OPTIONAL

Step Motor 2

T_IP

T_Rt

CN26CN14CN15

Dry Contact

(Optional)

WIFI

(Optional)

RLDS

(Optional)

Wired Remote

(Optional)

AC-Pump

(Optional) DC FAN

CN12

CN13

G(E)

+12V

SW1 SW2

v.20250401U

Installation

Indoor and Outdoor Unit Installation

Outdoor Unit Circuit Diagram

048-TP-9K2V-24S-OUT

048-TP-12K2V-24S-OUT

048-TP-18K2V-23S-OUT

048-TP-23K2V-23S-OUT

PCB

Indoor

Unit

Power

Supply

CN11

CN7

CN3

CN2 / CN1

GN(GNYE)

GN(GNYE) GN(GNYE)

GN(GNYE)

GNYE

VALVE

DC FAN

MOTOR

DC FAN

MOTOR

AC FAN

MOTOR

YE(BK)

WH(BU)

BK(BN)

RD URD

WH VWH

BU WBU

(Optional)

REACTOR

Outdoor Environment Temp. Sensor

Outdoor Pipe Temp. Sensor

Outdoor Exhaust Temp. Sensor

Compressor Protector

Heater

Electronic Expansion Valve

COMP

(Optional)

CN12-2

CN12-1

P8 (VAL)

P01 (GND)

P1 (AC-L)

P2 (AC-N)

P3 (S)

P0 (GND) / P00

(CN410)

CN12-2

(P9)

(External Drive)

P14(L2)

P13(L1)

Installation

Indoor and Outdoor Unit Installation

Outdoor Unit Circuit Diagram

048-TLP-MODU-1D2

A-OUTT

A-INT

B-OUTT

B-INT

PCB

T_out

T_in

HP CN6

(CN12-2)

T_OP / T_RtTH / TP

VAL DPZ

P13 P14

Abbreviation

OHT Outdoor suction temp. sensor

OPT Outdoor pipe temp. sensor

ORT Outdoor temp. sensor

OET Outdoor exhaust temp. sensor

INT In temp. sensor

OUTT Out temp. sensor

HPS High pressor switch

SIG

P2 (AC-N)

P1 (AC-L)

P0 (PE)

COMP

GNYE

(Optional)

EEV

EXV AEXV B

GNYE(GN)

L1 L2

BK BKWH WH WHGN GN

GNYE YE

Indoor

Unit A

Power

Supply

Indoor

Unit B

1A 1B2A 2B3A 3B

Magnetic

Ring

(Optional)

(WH)

RD RD

BU BU

4-Way

Valve

Fan

Motor

Reactor

Bottom Band Heater

GNYE

HPS

(Optional)

(Optional) (Optional)

(Optional)

v.20250401U

Installation

Indoor and Outdoor Unit Installation

Outdoor Unit Circuit Diagram

A-INT

B-INT

C-INT

048-TLP-MODU-1D3

Abbreviation

OHT Outdoor suction temp. sensor

OPT Outdoor pipe temp. sensor

ORT Outdoor temp. sensor

OET Outdoor exhaust temp. sensor

INT In temp. sensor

OUTT Out temp. sensor

HPS High Pressor switch

A-OUTT

B-OUTT

C-OUTT

OHT OPTOET ORT

T_OP / T_RtTH / TP

T_out

T_in

WVU

RD BUWT

COMP

EEV

EXV AEXV BEXV C

P2 (AC-N)

P1 (AC-L)

P0 (PE)

SIG

P13 P14

DPZHP VALCN6

(CN12-2)

PCB

(Optional)

HPS

Fan

Motor

GNYE

(Optional)

4-Way

Valve

(WH)

Reactor

(Optional)

Bottom Band Heater

(Optional)

Indoor

Unit A

Power

Supply

Indoor

Unit B

Indoor

Unit C

GNYE(GN)

L1 L2

BK BK BKWH WH WH WHGN

GN GN GNYE YE YE

1A 1B

2A 2B

3A 3B

Magnetic

Ring

(Optional)

Installation

Indoor and Outdoor Unit Installation

Outdoor Unit Circuit Diagram

A-INT

B-INT

C-INT

D-INT

048-TLP-MODU-1D4

Abbreviation

OHT Outdoor suction temp. sensor

OPT Outdoor pipe temp. sensor

ORT Outdoor temp. sensor

OET Outdoor exhaust temp. sensor

INT In temp. sensor

OUTT Out temp. sensor

HPS High Pressor switch

A-OUTT

B-OUTT

C-OUTT

D-OUTT

OHT OPTOET ORT

T_OP / T_Rt

TH / TP

T_out

T_in

RD BUWT

COMP

EEV

EXV AEXV BEXV CEXV D

P2 (AC-N)

P1 (AC-L)

P0 (PE)

SIG

P13 P14

DPZHP VALCN6

(CN12-2)

PCB

(Optional)

HPS

Fan

Motor

GNYE

(Optional)

4-Way

Valve

(WH)

Reactor

(Optional)

BU RD

Bottom Band Heater

(Optional)

GNYE(GN)

Magnetic

Ring

(Optional)

Indoor

Unit A

Power

Supply

Indoor

Unit B

Indoor

Unit C

Indoor

Unit D

L1 L2

BK BK

WH WH WH

GN GN

YE YE

1A 1B

2A 2B

3A 3B

v.20250401U

048-TLP-MODU-1D5

Installation

Indoor and Outdoor Unit Installation

Outdoor Unit Circuit Diagram

Abbreviation

OHT Outdoor suction temp. sensor

OPT Outdoor pipe temp. sensor

ORT Outdoor temp. sensor

OET Outdoor exhaust temp. sensor

INT In temp. sensor

OUTT Out temp. sensor

HPS High Pressor switch

A-INT

B-INT

C-INT

D-INT

E-INT

A-OUTT

B-OUTT

C-OUTT

D-OUTT

E-OUTT

T_out

T_in

HP1CN12-2

PCB

Magnetic

Ring

VAL

Fan

Motor

HPS

Valve

BU BU

RD RD

RD (WH)

Bottom Band Heater

(Optional) (Optional)

Inductor

DPZ

P13 P14 WVU

COMP

GNYE

(Optional)

CN3 DRED

(Optional)

GNYE(GN)

SIG

P2 (N)

P1 (L)

T_OP / T_Rt

TH / TP1

OHT OPTOET ORT

EXV AEXV BEXV CEXV DEXV E

EXV

BU BU BU BU

BN BN BN BN

L1 L2

1A 1B 1C 1D 1E2A 2B 2C 2D 2E3A 3B 3C 3D 3E

BK WHGN

Power

Supply

BK BK BK BK

WH WH WH WH

GN GN GN GN GN

YE YE YE YE

Indoor

Unit A

Indoor

Unit B

Indoor

Unit C

Indoor

Unit D

Indoor

Unit E

Installation

Indoor and Outdoor Unit Installation

Vacuum Pumping, Leak Test (Using Micron Gauge) *RECOMMENDED, and Adjust Refrigernat Level

1. Remove the protective caps from the service port, low-pressure

valve (Lo·R), and high-pressure valve (Hi·R).

2. Connect the charging hose with a push pin to the service port.

3. Connect a the vacuum pump to the other end of the charging

hose and the micron gauge in between the service port and the

pump.

4. Open the valve adapter on the charging set, then turn on the

vacuum pump to vacuum the system.

5. Let the vacuum pump run until the micron gauge indicate the

value of 500 micron or lower.

6. Close the valve adapter on the charging set and turn off the

vacuum pump.

7. Leave the system connected with the micron gauge for 5

minutes, then make sure the gauge indication does not exceed

500 micron.

NOTE: In the case of a leak, and the micron level increases above

500 micron, reconnect all the connection joints on the refrigerant

line, and redo the vacuum pumping.

8. Disconnect the pressure hose and the micron gauge from the

service port.

9. The air conditioner comes with enough refrigerant for the

standard length pipe set, add refrigerant charge if you use a

lengthened refrigerant line.

-00-

10. Turn on the air conditioner and confirm it can power on properly,

and then turn it off.

-00-

11. Fully open the low pressure valve (Lo·R) and high pressure valve

(Hi·R)

12. Put the protective caps back on the service, low-pressure valve,

and high-pressure valve.

13. Tighten the caps.

Page 15

Page 58

• Only add refrigerant if you use a lengthened refrigerant

line. There is no need to adjust or recover any amount

refrigerant if you use a standard or shortened refrigerant

line.

• Do not open the refrigerant valve until vacuum pumping is

completed.

• Stop and disconnect the vacuum pump from the system

before opening the refrigerant valve.

• Each indoor unit connected to the multizone outdoor unit

must vacuumed respectively.

• Additional Refrigerant Amount (ounce)

[0.11 × (Total Install length (ft) - 25)] oz

• Additional Refrigerant Amount (gram)

[10 × (Total Install length (m) - 7.5)] g

Additional Refrigerant

v.20250401U

Indoor and Outdoor Unit Installation

Charging Hose

Vacuum Pump

High Pressure Valve

(Hi·R)

Valve Adapter

Low Pressure Valve

(Lo·R)

Micron Gauge

Service Port

Micron

Micron Gauge Connection

Installation

1. Remove the protective caps from the service port, low-pressure

valve (Lo·R), and high-pressure valve (Hi·R).

2. Connect the pressure hose with a push pin from the manifold

gauge to the service port.

3. Connect the charging hose from the manifold gauge to the

vacuum pump.

4. OPEN the low-pressure valve (Lo·M) and CLOSE the high

pressure valve (Hi·M) on the manifold gauge.

5. Turn on the vacuum pump to vacuum the system.

6. Let the vacuum pump run for at least 15 minutes and make sure

the gauge indicates −0.1 Mpa (−76 cmHg).

NOTE: Depending on your refrigerant line set length and vacuum

pump power, it might takes longer time.

7. Close the pressure valve (Lo·M) and turn off the vacuum pump.

8. Leave the system connected with the manifold gauge for 5

minutes, then make sure the gauge indication does not exceed

0.005 Mpa.

NOTE: In the case of a leak, and the pressure value increases,

reconnect all the connection joints on the refrigerant line, and

redo the vacuum pumping.

9. Open the high-pressure valve (Hi·R) for 1/4 turn, then close the

valve after 5 seconds.

10. Check all connection joints with refrigerant leak detector or liquid

leak detector.

11. The air conditioner comes with enough refrigerant for the

standard length pipe set, add refrigerant charge if you use a

lengthened refrigerant line.

-00-

12. Turn on the air conditioner and confirm it can power on properly,

and then turn it off.

-00-

13. Disconnect the pressure hose from the service port, then fully

open the low pressure valve (Lo·R) and high pressure valve (Hi·R).

14. Put the protective caps back on the service, low-pressure valve,

and high-pressure valve.

15. Tighten the caps.

• Only add refrigerant if you use a lengthened refrigerant

line. There is no need to adjust or recover any amount

refrigerant if you use a standard or shortened refrigerant

line.

• Do not open the refrigerant valve until vacuum pumping is

completed.

• Stop and disconnect the vacuum pump from the system

before opening the refrigerant valve.

• Each indoor unit connected to the multizone outdoor unit

must vacuumed respectively.

• Analog manifold gauge is less accurate and measure vacuum at a lower resolution than a digital micron gauge. DELLA recommend

using micron gauge for vacuum pumping mentioned on -00- .

Page 44

Page 15

Page 58

Indoor and Outdoor Unit Installation

Vacuum Pumping, Leak Test (Using Manifold Gauge), and Adjust Refrigernat Level

Wait 5 sec

• Additional Refrigerant Amount (ounce)

[0.11 × (Total Install length (ft) - 25)] oz

• Additional Refrigerant Amount (gram)

[10 × (Total Install length (m) - 7.5)] g

Additional Refrigerant

v.20250401U

Indoor and Outdoor Unit Installation

kg/cm²

Pressure Hose

Charging Hose

Manifold Gauge

High Pressure Valve

(Hi·R)

High Pressure Valve

(Hi·M)

Low Pressure Valve

(Lo·R)

Low Pressure Valve

(Lo·M)

Service Port

Vacuum Pump

Installation

Manifold Gauge Connection

Install a decorative line cover kit (not

included) on the outdoor wall and over the

line bundle to protect it from rain, sunlight,

and other external elements.

Seal the wall penetration with sealant / putty /

caulk etc. (Only putty is included in the package) to

prevent water or insects from getting into the wall.

• When wrapping and bundling the line set, avoid over tightening to prevent the insulating materials from over compression.

• Make sure all connection joints are properly insulated.

Line Set Insulation, Bundling, and Finishing Touch

Refrigerant Pipes, drain hose, and electric cable must be properly arranged and bundled with insulation tape to maximize the unit’s efficiency and

prevent condensation or water leak.

Finishing

Wrapping Tape

Polyethylene Foam,

hold in place with zip ties

or tape

Installation

v.20250401U

Finishing

Check List

Go through the following list and check your installation.

the check box for each conrmation.

Check List Status

Are the indoor and outdoor unit kept at least the minimum distance away from the closest wall and obstacle?

Is the indoor unit securely mounted on the ceiling?

Are all the panels on the unit secured and would not fall out?

Is the drain hose properly attached?

Are the refrigerant pipes securely connected and no refrigerant leakage?

Are all pipes, hoses, and cable bundled and wrapped with insulation tape?

Is the system properly vacuumed?

Is all the wall opening sealed o?

Are the refrigerant valves fully opened?

Do the power supply and voltage match the unit rating?

(Check before connecting to power supply)

Is the electrical wiring in the unit connected and secured?

Are the units properly grounded?

Is the power breaker, fuse, or protection device installed?

Can the remote control send control commands to the air conditioner?

• Any failures, accidents, or damages caused by improper installation are not covered by the warranty.

Installation

Test Run

After the installation, test run the system and take sure it performs and works properly without water leak or abnormal noise.

Finishing

1. Turn on the power supply.

2. Turn on the air conditioner using the remote control after 2 hours.

3. Test the unit at the lowest temperature in COOL mode.

4. Test the unit at the highest temperature in HEAT mode.

5. Test each mode for at least 8 minutes.

- Measure the air temperature at the air outlet.

- Check if water drains properly from the drainage hose.

- Check if the louver and deflectors move properly.

6. If everything is operating normally, return to normal setting and turn off the air conditioner.

7. Inform the user to read the operation instruction before use, and demonstrate to the user how to use the air conditioner, the necessary

knowledge of service and maintenance, and a reminder of accessories storage.

support.dellahome.com

24/7 Live Chat

800-863-4143

6:00 a.m. - 4:00 p.m. PST

Monday - Friday

• Wait for at least 2 hours before turning on the air conditioner after installation. Make sure the air conditioner is powered during the

wait time and let the system to balance the refrigerant pressure and calibrate sensors.

v.20250401U

Operation Tips

Before Using

Avoid placing TV, radio or large furniture under the air

conditioner.

Avoid putting plants or objects around the outdoor unit.

Close windows and blinds.Avoid direct wind flow to people, pets, or plants.

Follow cleaning and maintenance routine. DO NOT manually adjust the deflector and flaps.

• It may block wind flow or interfere with the remote control. • It may lower the air conditioner efficiency or cause malfunction.

• The air conditioner can cool or warm the area with better

efficiency.

• Expose to direct wind flow for extended period of time may

have a negative impact on your health.

• Regular cleaning and maintenance are needed for the best

efficiency and prevent bad odor or water leak.

• It may cause injury to the user and damages to the air

conditioner.

Before Using

NOTE: The graphical representation might have slight differences than the actual product.

Indoor Unit and Front Panel

Before Using

Button Function

Manual Power Button

LED Indicator Function

Lights up when AC is operating

Indicator of temperature, timer, and error code

Light up when a timer is set

Light up when the AC is defrosting

Display

Air Return Grill

Air Filter

-00-

Page 71

Air Outlet

Air Deflector and Flaps

-00-

Front Panel

Page 60

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Remote Control Holder

Remote Control (Remote Control Holder)

1. Attach the remote control holder to a wall by using the double sided adhesive tape or provided screws.

NOTE: Wall anchor might needed if you install it on a dry wall.

2. Insert the remote control into the holder.

• Avoid exposing the remote control to direct sunlight.

Before Using

Remote Control (Inserting Battery)

1. Push and slide the back cover off the remote control.

2. Insert 2 LR03 AAA 1.5 v batteries into the battery compartment.

3. Reinstall the back cover to the remote control.

• After new batteries are inserted into the remote control, the display screen will lights up for 3

seconds. Leave it for 10 seconds, the display will automatically turn off.

• The default temperature unit will automatically turn into degree Fahrenheit.

To change temperature unit, follow instruction on -00- . .

• Do not use rechargeable batteries.

• Replace the old batteries with new ones of the same type.

• Do not dispose batteries as unsorted municipal waste.

Page 66

v.20250401U

Made to live with you, Della puts controls in your

hands so that you can easily dail in a stress-free

space that helps you feel more you.

Just Right,

Always.

Vicinity Sensor Button

Let the air conditioner adjust temperature

automatically according to the detected

temperature around the remote control

-00-

Self Clean Button

Enable the air conditioner to clean its internal

parts

-00-

Display

Indicate operating status, temperature or

timer setting

Mode Button

Select operation mode

-00-

Power Button

Turn ON / OFF the air conditioner

-00-

Fan Button

Select fan speed

-00-

Quiet Button

Enable the air conditioner to run in

quiet mode

-00-

Sleep Button

Enable the air conditioner to operate a pre-set

program suited for sleep time

-00-

Increase / Decrease Button

Adjust temperature / timer setting

Air Flow Button

Control deflector & flaps to direct air flow

-00-

Turbo Button

Temporary boosting the air conditioner

performance

-00-

ECO Button

Enable the air conditioner to be more

energy efficient

-00-

Display Button

Turn ON / OFF the indoor unit display

-00-

Timer Button

Enable ON / OFF timer setting

-00-

Remote Control

Before Using

Page 58

Page 60

Page 61

Page 62

Page 63

Page 64

Page 58

Page 59

Page 61

Page 62

Page 64

Page 65

v.20250401U

Remote Control

Before Using

LED Indicator Function

Signal Indicator

Child Lock

Indicate Set Temperature

Indicate Room Temperature

Low Battery

Auto Mode

Cool Mode

Dehumidify Mode

Heat Mode

Fan Mode

Indicate Temperature Value

Temperature Unit

Degree Fahrenheit / Celsius

LED Indicator Function

Horizontal & Vertical Air Flow Indicator

Quiet Mode

Fan Speed

Turbo Mode

Eco Mode

Sleep Mode

Timer

Vicinity Sensor Mode

Indoor Unit Display Indicator

Self Clean

Before Using

Basic Operation

• It may takes a few minutes for the air conditioner to switch between modes.

• During Heat mode, the air conditioner can automatically activate defrost cycle, which is essential

to remove frost on the condenser for heat exchange function. This procedure usually last for 2 - 10

minutes. When defrosting, indoor unit fan will stop operating. Once defrosting is completed, it will

resume heat mode automatically.

• Auto mode allows the AC to automatically select operation mode based on the above logic.

• Each mode will operate for at least 6 minutes before switching.

• Auto mode does not support sleep mode and eco mode operation.

Auto Cool Dehumidify Heat Fan

Press .

• The air conditioner will start operating.

Press to select operation mode.

Press .

• The air conditioner will stop operating.

Power ON

Select Operation Mode

Power OFF

Set temp. < Room temp.

Set temp. > Room temp.

Set temp. = Room temp. ± 1.8°F / 1°C

Cool

Heat

Fan

Basic Operation

Auto mode operation

v.20250401U

Basic Operation

Adjust Temperature

Set Fan Speed

Press to adjust temperature setting .

• Temperature setting will adjust by 1°F / 1°C increment for each time the button is pressed.

• Press and hold the buttons to adjust temperature continuously.

• Temperature can only be set between 61°F - 88°F / 16°C - 31°C.

Press to select your desired fan speed.

61°F - 88°F / 16°C - 31°C N/A

All Fan Speed All Fan Speed All Fan Speed All Fan Speed

Auto

Cool

Dehumidify

Temperature

Setting

Fan Speed

only

Heat

Fan

Basic Operation

Indoor Temperature Outdoor Temperature

Cool / Dehumidify Mode 63°F - 90°F / 17°C - 32°C 5°F - 131°F / -15°C - 55°C

Heat Mode 32°F - 80°F / 0°C - 27°C -13°F - 86°F / -25°C - 30°C

• The AC performs the best within operational ambient temperature.

• When the ambient temperature is too high, the AC may trip the circuit breaker protection and cause the system to shut down.

• When the ambient temperature is too low, the AC may generate excessive moisture, leading to water dripping from the outdoor unit.

Basic Operation

• When holding the horizontal flaps in place. It is recommended to hold the flaps in the up most position during cool mode. Vice versa, it

is recommended to hold the flaps in the down most position during heat mode.

• Cold air tends to sink.

• Warm air tends to rise.

Basic Operation

Adjust Air Flow

Press to oscillate horizontal flaps.

NOTE: Cassette unit does not support vertical oscillation, pressing would not have any action.

Press one more time.

The flaps will stop at the position it was in when you

pressed the button.

v.20250401U

Advance Function

Turbo Mode

Using turbo mode can boost the air conditioner performance in a short amount of time.

Press .

• The air conditioner will operate in boosted fan speed.

• Turbo mode is not available when the air conditioner is operating in dehumidification mode.

The air conditioner will operate at the minimum noise level under quiet mode.

Press .

• The air conditioner will operate in the lowest fan speed.

• Quiet mode is not available when the air conditioner is operating in dehumidification mode.

To stop turbo mode, press again or press / / .

To stop quiet mode, press again or press / / .

Quiet Mode

Advance Function

+ +

79°F - 88°F / 26°C - 31°C 61°F - 77°F / 16°C - 25°C

Advance Function

CoolECO

ECO

ECO Mode

The air conditioner will operate with maximum energy efficiency.

Press .

• ECO mode is only available when the air conditioner is operating in cool or heat mode.

• The set temperature for cool mode and heat mode will be limited.

Press again or set the temperature beyond the ECO mode limit to cancel ECO mode.

Heat

Temperature

Setting

Advance Function

In sleep mode, the air conditioner will operate a pre-set program which is suitable during sleep.

Press .

• Sleep mode will operate for 10 hours and then switch back to previously set mode.

• Sleep mode is not available when the air conditioner is operating in auto, dehumidify or fan mode.

Press again to stop sleep mode.

Sleep Mode

75°F

70°F

80°F

0 1 2 3 4 5 6 7 8 9 10

Hour

Temp.

Sleep mode operation

Cool

Heat

NOTE: This graph is for informational reference only. The actual product may changes temperature at a different

rate depending on the initial set temperature in sleep mode.

v.20250401U

• While entering the setting, make sure to press the button within 5 seconds after the previous button was pressed. otherwise, the

entire process will reset and you will have to start over.

•

Advance Function

Timer Function (Shutdown Timer)

Timer Function (Start-up Timer)

Set a timer to automatically turn OFF the air conditioner.

Press when the air conditioner is ON.

Press to set the desired turn off time.

Press to confirm the timer setting.

Set a timer to automatically turn ON the air conditioner.

Press when the air conditioner is OFF.

Press to set the desired turn off time.

Press , and to select your desired operation mode, temperature setting, and

fan speed for when the air conditioner is turn ON.

Press

Timer default at 6 h

Timer Set

Edit timer setting

Cancel timer

Without pressing any button

for 5 sec

Press to confirm

• Both the shutdown and start-up timer can be set between 0.5 - 24 hours.

Advance Function

Vicinity Sensor

Switch ON / OFF the LED display on the indoor unit front panel.

Press to turn OFF the indoor unit display.

Press again to turn ON the indoor unit display.

Display ON / OFF

Advance Function

Vicinity sensor function turns your remote control into a portable thermostat that automatically controls the

unit to adjust the temperature of the room you are in.

Press to activate vicinity sensor function.

• In the case of the temperature detected by the remote control and the indoor unit thermostathas has

a difference greater than 11 °F / 6 °C, the AC would use the temperature data from the indoor unit for

temperature adjustment, instead of that from the remote control.

Remote control detect its surrounding

temperature every 3 minutes for 8 hours.

Air conditioner would operate to match the detected

temperature to the set temperature.

NOTE: The remote control must be pointed towards the indoor unit to prevent lost of communication.

Press again to stop vicinity sensor function.

v.20250401U

Self cleaning function allows the air conditioner to clean the interior parts and helps carry away the

accumulated dirt, bacteria, etc. from the indoor evaporator.

Press when the air conditioner is OFF.

• will display on the indoor unit display.

• The self cleaning function will run for 30 minutes, then it will return to the previously operating mode

once it is finish.

• It is recommended to operate this function when the indoor ambient temperature is under 86°F / 30°C,

and the outdoor ambient temperature is between 41°F - 86°F / 5°C - 30°C.

• It is suggested to run the self cleaning function once every 3 months.

• It is normal that the unit makes some noise during self cleaning process as plastic materials expand and

contract with temperature change.

Advance Function

Self Cleaning

Child lock function will disable all input from the remote control until unlocked.

Press and hold and for 3 seconds to activate child lock.

• will display on the remote control display.

Press and hold and for 3 seconds again to dectivate child lock.

Child Lock

Advance Function

Press and hold for 5 seconds.

• The temperature unit will switch between °F and °C.

Advance Function

°F / °C

To maximize heat efficiency, you can force the outdoor unit to perform a defrost cycle before using heat

mode.

In heat mode, press 10 times within 8 seconds.

• code will display on the indoor unit, and the AC will enter defrost cycle.

During the defrost cycle, your indoor unit will blow cold air temporarily.

Once the defrost cycle ends, the AC will automatically resume heat mode operation.

Forced Defrost

Advance Function

v.20250401U

Advance Function

DELLA+ App Download

1. Search “DELLA+” on Apple app store or Google Play, or scan the QR code below to download the application.

2. Register an account in the app.

3. Follow the in app instructions to add and pair your Della AC to the app and complete the Wi-Fi set up.

1. Click "Me" on the Della+ app.

2. Choose "Home Management".

3. Follow the in app instructions to create or join a home.

Advance Function

Wi-Fi Set up

Household Set up (Optional)

To set up the DELLA+ app to control your AC.

Create and Join home to control your Della AC via the Della+ app from

multiple devices and multiple accounts.

NOTE: Pairing your Della AC with a different account outside the

household will remove the original pairing. Only one household can be

paried at a time.

• The Della+ application is free, however, data charges may apply when downloading or using the application.

• Della+ can be altered without notice for quality improvement and also be deleted depending on the circumstances of manufacturing

firms.

• All trademarks, logo, brand names are the property of their respective companies. Use of these names, brands, and trademarks does

not imply endorsement. Della assumes no responsibility with regard to the performance or use of these products.

Check out detailed tutorial on the most updated application on dellahome.com/support.

You can also scan the download QR code

The Della app combines smart technology with simple, user-friendly

design, providing a seemless experience and endless customization.

Automated smart features work behind the scenes to dialin your

environment and improve your everyday, so you can focus on other, more

interesting things.

remotely,

too.

We work

v.20250401U

Advance Function

Refrigerant Sensor

• This unit is equipped with a refrigerant leak detector for safety and the unit must be electrically powered at all time after installaion for the

sensor to work effectively and properly other than during servicing.

• The refrigerant sensor automatically detects the condition of the machine while in operation, and it will automatically start air flow circulation

and stop the compressor if refrigerant concentration reaches a pre-set level.

• An error code would displayed in the case of a leak detection.

• The refrigerant sensor has a lifespan of about 15 years and shuld be replaced within the range of its service life.

• The refrigerant sensor must be maintained by a professional and only specified sensor by the manufacturer should be replaced.

Error Code Description

Hd Refrigerant Leak Protection

Fd Refrigerant sensor communication error

048-CC-9K2V-IN

048-CC-12K2V-IN

048-CC-18K2V-IN

048-CC-24K2V-IN

Refrigerant Sensor

v.20250401U

1. Push the locking tabs and detach the air intake grill from the cassette unit.

2. Clean the grill and air filter with a vacuum cleaner or rinse it with mild soap and water.

3. Air dry the grill and air filter.

4. Put the air intake grill back to its original position after it is dry.

<104°F / 40°C

Clean the Air Filter

• Before cleaning the unit, you must shut down the machine and cut o the power supply for at least 5 minutes.

• Never ush the air conditioner with water.

• Do not touch the any components inside the cassette unit with bare hands after removing the air intake grill.

• Check and clean the air intake grill and filter regularly to prevent dust accumulation.

• Clean the air filter frequently if the operating environment is dusty or has bad air quality.

• Do not dry the air intake grill with dryer or heater. It might cause the intake grill to deform or warp.

Care and Maintenance

CAUTION

Care and Maintenance

Unlock

Unscrew

24K9K-18K

Care and Maintenance

• Clean the air filter screen every 3 months.

• Use the self clean function to clean the indoor unit every 3 months.

-00-

• Call your HVAC technician to check on the refrigerant level every 3 - 4 years.

• Regularly check and remove any obstacles from the outdoor unit.

• Take out the batteries from the remove control and disconnect the power supply of the air conditioner.

• Clean the unit and the air filter screen.

• Remove any obstacles at the air inlet and outlet of both the indoor and outdoor unit.

• Make sure drain pipe is unobstructed.

• Install batteries into the remove control and connect the power supply to the air conditioner.

Planning to Not Operate the Air Conditioner for a Long Period

Using the Air Conditioner After a Long Idle Period

Care and Maintenance

Maintenance Routine

Page 65

v.20250401U

Having Problems?

Before consulting repair or warranty, please check the following troubleshooting guide.

In the case of an persistent problem, contact a qualified technician for diagnosis and repair.

• When encountering persisting problem, stop operation and turn off the breaker. Continue operation in an abnormal condition may

cause electric shock, fire, or damage to the unit.

• Do not attempt to repair or modify the unit by yourself. Incorrect work may result in electric shock, fire or injury.

Problem Possible Cause / Explanation / Solution

The appliance is non operational

When pressing the power button soon after operation was stopped

- Protective delay switch will delay the operation for 3 - 5 minutes if the air conditioner is turned

on immediately after it is turned o.

When switching between operation modes

- The internal protection is activated, wait for a few minutes for the AC to resume normal

operation.

The unit is currently has a turn ON timer activated.

The circuit breaker is tripped. Reset the circuit breaker.

Faulty electric connection, mismatch outlet voltage, or damaged electronic control board.

Contact a qualied technician.

The appliance suddenly stopped during

operation

An internal protection tripped after a sudden voltage uctuation. Check the circuit breaker and

reset if necessary.

The environment temperature is too high or too low.

The AC automatically activate de-frost process. This is not a malfunction.

Air lter is too dirty. Clean the air lter.

Some objects are obstructing air inlet or outlet of the indoor and / or the outdoor unit. Remove

the obstructing object.

Strange odor from the air ow

Air lter is too dirty. Clean the air lter.

The smells of the room, furniture, or cigarettes are absorbed into the unit and then discharged.

Remove odorous objects from the room.

Strange Noise

In the case of water owing noise

- The noise may caused by the refrigerant ow, or the internal water ow during cold / dry

mode. This is not a malfunction.

In the case of plastic cracking noise

- The noise may caused by the thermal expansion.

Troubleshooting

WARNING

Having Problems?

Problem Possible Cause / Explanation / Solution

Mist comes out from the air outlet

This occurs when the air in the room becomes cold in cool or dry mode. This does not indicate

a problem.

No cool air in cold mode

When switching between operation modes

- The internal protection is activated, wait for a few minutes for the AC to resume normal

operation.

Check and make sure the temperature setting is below the environment temperature.

No warm air in heat mode

When switching between operation modes

- The internal protection is activated, wait for a few minutes for the AC to resume normal

operation.

Check and make sure the temperature setting is below the environment temperature.

The AC automatically activate de-frost process. This is not a malfunction. Wait 2 - 10 minutes for

the AC to complete defrosting.

Frost built up on the outdoor unit. If the AC does not automatically activate de-frost process,

force defrost process following instruction on page 66.

Insucient air ow, either cold or hot

Some objects are obstructing air inlet or outlet of the indoor and / or the outdoor unit. Remove

the obstructing object.

Other heat source of heat in the room. Remove the heat source.

The fan speed is set to minimum. Try to set at a higher fan speed.

The unit does not respond to the remote

control commands

Remote Control is too far away from the indoor unit.

There is an obstruction between the remote control and the indoor unit.

The battery power has run out in the remote control. Replace the battery.

Child lock function is activated. Deactivate child lock on the remote control.

The display on the indoor unit is not lit

The display is set to o on the remote control. Use the remote control to turn it on.

Power failure. Check the power supply / circuit breaker.

Water dripping from the outdoor unit

The indoor unit internal is too dirty and clogged the drainage port. Contact qualied technician

for cleaning.

Condensation formed on the uninsulated drainage hose / refrigerant pipe in the line set.

Contact qualied technician to properly insulate the water hose / refrigerant pipes.

Improper drainage hose installation.

Troubleshooting

v.20250401U

Having Problems?

WARNING

Switch off the air conditioner immediately and cut off the power supply in the event of:

• Strange, loud noises during operation.

• Faulty electronic control board.

• Faulty fuses or switches.

• Spraying water or objects inside the appliance.

• Frequent circuit breaker tripped during operation.

• Abnormally hot or damaged power cord or plug.

• Very strong smells discharging from the appliance.

Troubleshooting

Error Code

Error Code Description

E0 Indoor and outdoor communication failure

E1 Indoor ambient temperature sensor failure

E2 Indoor fancoil temperature sensor failure

E3 Outdoor fancoil temperature sensor failure

E4 Abnormal system malfunction (lack of uroine)

E5 Model conguration error

E6 Indoor PG/DC fan failure

E7 Outdoor ambient temperature sensor failure

E8 Outdoor exhaust temperature sensor failure

E9 Outdoor IPM module failure / Compressor drive failure

EA Outdoor current sensor failure

Eb PCB and display screen communication failure

EC Outdoor modules communication failure

Having Problems?

Troubleshooting

Error Code Description

EE Outdoor EEPROM fault

EF Outdoor DC fan failure

EH Outdoor compressor top failure

EU Outdoor voltage sensor failure

Ej Outdoor central coil temperature sensor failure

En Outdoor air pipe temperature sensor failure

Ey Outdoor liquid pipe temperature sensor failure

P0 IPM module protection

P1 Overvoltage and undervoltage protection

P2 Overcurrent protection

P3 Other protections

P4 Protection against excessive outdoor exhaust temperature

P5 Cooling protection against overcooling

P6 Cooling and anti overheating protection

P7 Heating and anti overheating protection

P8 Protection against high or low outdoor temperature

P9 Compressor drive protection (abnormal load)

PA Communication failure / Mode conict

v.20250401U

Having Problems?

Troubleshooting

Error Code Description

F0 Infrared human sensing sensor failure

F1 Battery module failure

F2 Exhaust temperature sensor failure protection

F3 Failure protection of outer tuber temperature sensor

F4 Abnormal protection of refrigerant circulation

F5 PFC protection

F6 Compressor missing / Reverse phase protection

F7 Module temperature protection

F8 Abnormal commnication of 4-way valve

F9 Module temperature sensor circuit malfunction

FA Compressor phase current detection fault

Fb Cooling and heating overload protection limit frequency reduction

FC High power protection limit / Frequency reduction

FE Module current (compressor phase current) protection limit / Frequency reduction

FF Drive protection limit / Frequency reduction

FH Drive protection limit / Frequency reduction

FP Anti condensation protection limit / Frequency reduction

FU Anti freezing protection limit / frequency reduction

Fj Exhaust protection limit / Frequency reduction

Fn External AC current protection limit / frequency reduction

Troubleshooting

Having Problems?

Error Code Description

Fy Fluorine deciency protection

H1 High pressure switch malfunction

H2 Low pressure switch malfunction

bf TVOC sensor failure

bc PM2.5 sensor failure

bj Humidity sensor failure

bE CO2 sensor malfunction

bd Fresh air fan failure

d4 Water full protection

d5 Access control protection

Hd Refrigerant Leak Protection

Fd The communication of the refrigerant sensor is abnormal

v.20250401U

Having Problems?

Troubleshooting

Disposal Guideline

This appliance contains refrigerant and other potentially hazardous materials. When disposing of the appliance, follow all federal, state, and local

regulations. DO NOT dispose of this product as normal household waste or unsorted municipal waste.

When disposing of this appliance, you have the following options:

• Dispose of the appliance at a designated municipal electronic waste collection facility.

• When buying a new appliance, the retailer will take the old appliance.

• The manufacturer may take back the old appliance.

• Sell the appliance to a certified scrap metal dealer.

Error codes shown on the air conditioner display panel only indicates communication problems between parts.

For technicians attempt to identify the exact problematic parts or componants, visit our page on

dellahome.com/pages/cassette-troubleshooting for detailed model specific diagnostic handbook.

dellahome.com/pages/cassette-troubleshooting

Warranty

DELLA distributor (hereinafter “Company”) warrants this product against failure due to defect in materials or workmanship under normal use and

maintenance as follows: All warranty periods begin on the date of purchase. If a part fails due to defect during the applicable warranty period,

Company will provide a new or remanufactured part, at Company’s option, to replace the failed defective part at no charge for the part. This

limited warranty is subject to all provisions, conditions, limitations and exclusions listed below.

• The standard warranty period is one (1) year for the entire unit and all parts, with no registration required.

• The extended warranty peroid for a complete new Della system (outdoor and indoor unit) is lifetime on all parts and compressor.

• In order to qualify for the free extended warranty the unit must be:

1. Registered within one hundred (100) days of purchase.

2. Must be with the original owner.

3. In the same address of residence that you entered with your registration.

• Some parts may need to be returned to Della. The limited lifetime warranty covers only parts that need to be replaced

For more information, please contact Della.

dellahome.com/pages/warranty

WARRANTY COVERAGE

STANDARD WARRANTY

EXTENDED WARRANTY

WARRANTY PARTS REPLACEMENT

Scan the QR code or visit our page on dellahome.com/pages/warranty to sign up for warranty coverage on your new DELLA appliance.

v.20250401U

Warranty

LIMITATIONS OF WARRANTIES: ALL IMPLIED WARRANTIES AND/OR CONDITIONS (INCLUDING IMPLIED WARRANTIES OR CONDITIONS

OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR USE OR PURPOSE ARE LIMITED TO THE DURATION OF THIS LIMITED

WARRANTY. SOME STATES DO NOT ALLOW LIMITATION ON HOW LONG AN IMPLIED WARRANTY OR CONDITION LASTS, SO THE

ABOVE MAY NOT APPLY TO YOU THE EXPRESS WARRANTIES MADE IN THIS WARRANTY ARE EXCLUSIVE AND MAY NOT BE ALTERED

ENLARGED, OR CHANGED BY ANY DISTRIBUTOR, DEALER, OR OTHER PERSON, WHATSOEVER.

This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. In jurisdictions where warranty

benefits conditioned on registration are prohibited by law, registration is not required, and the STANDARD warranty period shown above will

apply.

1. Labor or other costs incurred for diagnosing, repairing, removing, installing, shipping, servicing or handling of either defective parts, or

replacement parts, or new units.

2. Product cleaning required prior to warranty service and repair.

3. Normal maintenance as outlined in the installation and servicing instructions or Owner’s Manual, including filter cleaning and/or replacement

and lubrication.

4. Failure due to faulty installation or repairs, damage, misapplication, abuse, improper servicing, lack of or in-sufficient maintenance,

unauthorized alteration or improper operation.

5. Failure to start due to voltage conditions, improper wiring, blown fuses, open circuit breakers, or damages due to the inadequacy or

interruption of electrical service.

6. Failure or damage due to floods, winds, fires, lightning, accidents, corrosive environments (rust or residue etc.) or other conditions beyond

the control of the Company.

7. Damages due to chemicals (volatile organic compounds, sulfur, acids, etc.) or particulates.

8. Failure or damage of coils, piping or other parts due to corrosion, when installed in corrosive environments or within one (1) mile of seacoast.

9. Parts not supplied or designated by Company, or damages resulting from their use.

10. Products installed outside the 48 contiguous United States, except the District of Columbia and Hawaii, and Canada.

11. Electricity or fuel costs or increases in electricity or fuel costs from any reason whatsoever, including additional or unusual use of

supplemental electric heat.

12. Any cost to replace, refill or dispose of refrigerant, including the cost of refrigerant.

13. Shipping damage or damage as a result of transporting the unit.

14. Accessories such as condensate pumps, line sets and so forth are not covered.

15. Any special, indirect or consequential property or commercial damage of any nature whatsoever. Some states do not allow the exclusion of

incidental or consequential damages, so the above limitation may not apply to you.

16. Consumable components, such as air filters, are not covered under parts warranty.

LIMITED WARRANTY STATEMENT

THIS LIMITED WARRANTY DOES NOT COVER:

ID: 2ANDL-TYWE1S

FCC Caution

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may

cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's

authority to operate the equipment.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.

These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates,

uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions, may cause harmful interference

to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause

harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try

to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the seperation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio / TV technician for help.

Radio Frequency Interference

Model: 048-CC series

Compliance Information

The design and specications are subject to change without prior

notice for product improvement. Any updates to the manual will be

uploaded to the della website.

www.dellahome.com

support@dellahome.com

800–863–4143

6:00 a.m. – 4:00 p.m. PST Monday – Friday

DELLA CC-18K2V Mini Split AC 18K BTU 20.5 SEER2 for Up to 1000 sq. CC-18K2V-20S-I+O-X

Product's Documents

User Manual

Specifications

DELLA CC-18K2V-20S-I+O-X Questions and Answers