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26
Installation and Maintenance
Service Manual
To the power supply
To unit A
connecting
cable
To unit B
connecting
To unit C
cable
connecting
cable
To unit D
connecting
cable
INDOOR UNIT AINDOOR UNIT B
white
(blue)
white
(blue)
black
(brown)
red
(brown)
/
/
POWER
/
/
(yellow-
green)
green
(yellow-
green)
green
black white
(blue)
red
(brown)
(yellow-
green)
green
black
INDOOR UNIT C
white
(blue)
red
(brown)
(yellow-
green)
green
black
C
INDOOR UNIT D
white
(blue)
red
(brown)
(yellow-
green)
green
black
DBA
Power cord
L1 L2
To the power supply
To unit A
connecting
To unit B
cable
connecting
To unit C
cable
connecting
To unit D
cable
connecting
cable
To unit E
connecting
cable
INDOOR UNIT AINDOOR UNIT B
white
(blue)
white
(blue)
black
(brown)
red
(brown)
/
/
POWER
/
/
(yellow-
green)
green
(yellow-
green)
green
black white
(blue)
red
(brown)
(yellow-
green)
green
black
INDOOR UNIT C
white
(blue)
red
(brown)
(yellow-
green)
green
black
C
INDOOR UNIT D
white
(blue)
red
(brown)
(yellow-
green)
green
black
D
INDOOR UNIT E
white
(blue)
red
(brown)
(yellow-
green)
green
black
EBA
Power cord
L1 L2
MULTIU36HP230V1DO
MULTIU42HP230V1DO
INSTALLING THE OUTDOOR UNIT
Location
Use bolts to secure the unit to a flat, solid floor.When
mounting the unit on a wall or the roof, make sure the support
is rmly secured so that it cannot move in the event of intense
vibrations or a strong
wind.
● Do not install the outdoor unit in pits or air vents
Installing the pipes
Use suitable connecting pipes and equipment for the
refrigerant R410A.
Models(ft)
18Kx2 24Kx2 24Kx3 36Kx2
36Kx3
Max. connection
pipe length
164 164
230 164 230
Max. connection
pipe length
(Simple one indoor
unit)
82 82 82 82
Models(ft) 36Kx4 42Kx2 42Kx3 42Kx4
42Kx5
pipe length
Max. connection
246 164 246 263 263
Max. connection
(Simple one indoor
unit)
pipe length
82 82 82
82 82
The refrigerant pipes must not exceed the maximum
heights 33 ft.(18x2&24x2&24x3) & 49 ft(36x2&36x3&36x4&42x2
&42x3&42x4&42x5)
Wrap all t he refrigerant pipes and joints.
Tighten the connections using two wrenches working in
opposite directions.
Caution: Installation Must be Performed in Accordance
with the NEC/CEC by Authorized Personnel Only.
Install the drain tting and the drain hose(for model with
heat pump only)
Condensation is produced and flows from the outdoor
unit when the appliance is operating in the heating mode.
In order not to disturb neighbours and to respect the
environment,install a drain tting and a drain hose to channel
the condensate water.Install the drain fitting and rubber
washer on the outdoor unit chassis and connect a drain hose
to it as shown in the gure.
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