Gree MULTI24HP230V1CO

19
Installation and Maintenance
Service Manual
8.2 Installing the Outdoor Unit
Location
8VHEROWVWRVHFXUHWKHXQLWWRDÀDWVROLGÀRRU
When mounting the unit on a wall or the roof, make sure the support is
¿UPO\VHFXUHGVRWKDWLWFDQQRWPRYHLQWKHHYHQWRILQWHQVHYLEUDWLRQVRU
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) 18K 24K
Max. connection pipe
length(ft)
65.6 196.8
Max. connection pipe
length(Simpleone
indoor unit)(ft)
32.8 65.6
The refrigerant pipes must not exceed the maximum heights 16.4ft(18K)
or 32.8ft(24K).
Wrap all the refrigerant pipes and joints.
Tighten the connections using two wrenches working in opposite
directions.
Caution: Installation Must be Performed in Accordance with the
1(&&(&E\$XWKRUL]HG3HUVRQQHO2QO\
Humid air left inside the refrigerant circuit can cause compressor
malfunction. After having connected the indoor and outdoor units, bleed
the air and humidity from the refrigerant circuit using a vacuum pump.
(1) Unscrew and remove the caps from the 2-way and 3-way valves.
(2) Unscrew and remove the cap from the service valve.
(3) Connect the vacuum pump hose to the service valve.
(4) Operate the vacuum pump for 10-15 minutes until an absolute
vacuum of 10 mm Hg has been reached.
(5) With the vacuum pump still in operation, close the low-pressure knob
on the vacuum pump coupling. Stop the vacuum pump.
(6) Open the 2-way valve by 1/4 turn and then close it after 10 seconds.
Check all the joints for leaks using liquid soap or an electronic leak
device.
(7) Turn the body of the 2-way and 3-way valves. Disconnect
the vacuum pump hose.
(8) Replace and tighten all the caps on the valves.
Hex nut diameter(inch) Tightening torque(ft·Ibf)
ĭ 11.10~4.75
ĭ 20.12~29.50
ĭ 33.19~40.56
ĭ 44.24~47.94
ĭ 51.32~55.31
18K unit need to be installed the indoor unit
conversion joint
,QVWDOOWKHGUDLQ¿WWLQJDQGWKHGUDLQKRVHIRUPRGHOZLWK
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 fitting 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
LQWKH¿JXUH
Vacuum pump
INDOOR
UNIT
Vacuum pump Vacuum pump
Connect to the
indoor unit
Refrigerant fluid direction of flow
3-way valve
2-way valve
Service
inlet
(2)Turn
(8) Secure
(7) Turn to open fully
(2)Turn
(8) Secure
Va l ve c a p
(6) Open by 1/4 turn
(7) Turn to open full
y
(2)Turn
(8) Secure
Valve cap