15
Connect the charge hose which you disconnected
from the vacuum pump to the valve at the bottom
of the cylinder. If the refrigerant is R410A, make
the cylinder bottom up to ensure liquid charge.
2). Purge the air from the charge hose
Open the valve at the bottom of the cylinder and
press the check valve on the charge set to purge
the air (be careful of the liquid refrigerant).
3)
Put the charging cylinder onto the electronic
scale and record the weight.
4). Open the valves (Low side) on the charge set
and charge the system with liquid refrigerant
If the system cannot be charge with the specified
amount of refrigerant, or can be charged with a
little at a time (approximately 150g each time) ,
operating the air conditioner in the cooling cycle;
however, one time is not sufficient, wait
approximately 1 minute and then repeat the
procedure.
5).When the electronic scale displays the proper
weight, disconnect the charge hose from the 3-
way valve’s service port immediately
If the system has been charged with liquid
refrigerant while operating the air conditioner, turn
off the air conditioner before disconnecting the
hose.
6). Mounted the valve stem caps and the service
port. Use torque wrench to tighten the service
port cap to a torque of 18N·m (13.27 ft·lbs).
Always leak check after servicing the refrigerant
system.
For
MMCUT27AS3
/ MMCUT36AS4
/
MMCUT48AS5
There are one low-pressure centralized valve and
one high-pressure centralized valve, it will be
more time saving when vacuum and recycle
refrigerant. But refer to the previous instruction
when vacuum and recycle refrigerant.
Содержание MMCUT18AS2
Страница 3: ...3 MMCUT36AS4 WD30 metal plate 114 MMCUT48AS5 WE30 metal plate 121...
Страница 10: ...10...
Страница 23: ...23 6 Wiring Diagrams 6 1 Wiring diagram of 1 drive 2 outdoor MMCUT18AS2...
Страница 24: ...24 6 2 Wiring diagram of 1 drive 3 outdoor MMCUT27AS3...
Страница 25: ...25 6 3 Wiring diagram of 1 drive 4 outdoor MMCUT36AS4...
Страница 29: ...29...
Страница 43: ...43 Operating Standby Pic 2 IPM for 2 zone 3 zone...
Страница 44: ...44 PIC3 Main board LED when power on and unit standby Pic 2 IPM for5 zone Power Standby Operating...
Страница 59: ...59 Operating Standby Pic 2 IPM board for 2 zone 3 zone...
Страница 60: ...60 PIC3 Main board LED when power on and unit standby Pic 2 IPM for5 zone Power Standby Operating...
Страница 66: ...66 IPM board for 2 zone 3 zone...
Страница 68: ...68 IPM board for 4 zone...
Страница 71: ...71 Two ports of the inductance Inductance...
Страница 74: ...74 Vs Vcc Vsp FG...
Страница 77: ...77...
Страница 80: ...80...
Страница 83: ...83...
Страница 94: ...94 6 EXV check Disconnect the connectors...
Страница 95: ...95 Resistance to EXV coil Color of lead wire Normal Value Red Blue About 50 Red Yellow Brown Orange Brown White...
Страница 96: ...96 Red Blue Red Yellow...
Страница 97: ...97 Brown Orange...
Страница 98: ...98 Brown White...
Страница 108: ...108 Screws of right rear panel Screws of terminal board...