136-EN135-EN
– 68 –
Full opening of the valve
Open the valves of the outdoor unit fully.
MAP080
MAP100
MAP120
MAP140
MAP160
MAP180
MAP200
MAP220
Liquid side
Packed valve
Using a 4mm-hexagonal wrench,
fully open the valve rods.
Ball valve
Using a flathead screwdriver, turn it counterclockwise by 90° until it
hits the stopper. (Full open)
(1)
(2)
Service
port
Valve unit
Using flathead
screwdriver, turn it
counterclockwise by
90° until it hits the
stopper. (Full open)
Flare nut
Position of screwdriver slot
Fully closed Fully opened
Slot
* When opened fully, do not apply excessive
torque after the screwdriver hits the
stopper; otherwise a problem may be
caused on the valve. (5 N•m or less)
Balance pipe
Balance packed valve
Using a 4mm-hexagonal wrench, fully open the valve rods.
Gas side
Balance valve
Using a wrench, turn it counterclockwise by 90° until it hits the stopper.
(Full open)
Fully closed Fully opened
Table 2
Additional refrigerant charge amount Indoor unit
Standard
Indoor unit
Fresh Air Intake
Indoor Unit
Air to Air Heat
exchanger with
DX-coil
Hot Water
Module
Additional refrigerant charge amount kg/HP 0.4 0.2 0.2 0
Table 3
Pipe dia. at liquid side mm Ø6.4 Ø9.5 Ø12.7 Ø15.9 Ø19.0 Ø22.2
Additional refrigerant amount/1m kg/m 0.025 0.055 0.105 0.160 0.250 0.350
Charging of refrigerant
• Keeping the valve of the outdoor unit closed, be sure to charge the liquid refrigerant into the service port at the
liquid side.
• If the specified amount of refrigerant cannot be charged, fully open the valves of the outdoor unit at liquid and
gas sides, operate the air conditioner in COOL mode, and then charge refrigerant into service port at the gas
side. In this time, choke the refrigerant slightly by operating the valve of the canister to charge liquid refrigerant.
• The liquid refrigerant may be charged suddenly, therefore be sure to charge refrigerant gradually.
1117101201-3 EN.indd 681117101201-3 EN.indd 68 8/8/2559 BE 3:49 PM8/8/2559 BE 3:49 PM
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