hOmeLabs HME030357N User Manual

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Step 1: Cut pipes

When preparing refrigerant pipes, take extra care

tocutandﬂarethemproperly.Thiswillensure

ef�cientoperationandminimizetheneedfor

future maintenance.

1. Mea sure the distance between the indoor and

outdoor units.

2. Using a pipe cutter, cut the pipe a little longer

than the measured distance.

3. Make sure that the pipe is cut at a perfect 90°

angle.

Oblique Rough Warped

90°

DONOTDEFORMPIPEWHILECUTTING

Be extra careful not to damage, dent, or deform the

pipe while cutting. This will drastically reduce the

heatingef�ciencyoftheunit.

Refrigerant Piping Connection

Whenconnectingrefrigerantpiping,donotletsubstancesorgasesotherthanthespeci�edrefrigerant

enter the unit. The presence of other gases or substances will lower the unit’s capacity, and can cause

abnormally high pressure in the refrigeration cycle. This can cause explosion and injury.

Note on Pipe Length

Thelengthofrefrigerantpipingwillaffecttheperformanceandenergyef�ciencyoftheunit.Nominal

ef�ciencyistestedonunitswithapipelengthof16.5ft.InNorthAmerica,thestandardpipelengthis25ft.

Aminimumpiperunof10ftisrequiredtominimizevibration&excessivenoise.

Refertobelowtableforspeci�cationsonthemaximumlengthanddropheightofpiping.

MaximumLengthandDropHeightofRefrigerantPipingperUnitModel

MODEL CAPACITYBTU/H

MAX.LENGTH

M

MAX.DROPHEIGHT

M

R410A,R32 Inverter

Split Air Conditioner

<15,000 25 (82ft) 10 (33ft)

≥15,000and<24,000 30 (98.5ft) 20 (66ft)

≥24,000and<36,000 50 (164ft) 25 (82ft)

R22 Fixed-speed

Split Air Conditioner

<18,000 10 (33ft) 5 (16ft)

≥18,000and<21,000 15 (49ft) 8(26ft)

≥21,000and<35,000 20 (66ft) 10(33ft)

R410A, R32 Fixed-

speed Split Air

Conditioner

<18,000 20 (66ft) 8(26ft)

≥18,000and<36,000 25 (82ft) 10(33ft)

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hOmeLabs HME030357N Split Type Inverter Air Conditioners

User Manual - Page 39