Mitsubishi Electric MXZ-2F33VF, Руководство по обслуживанию

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When relocating or disposing of the air conditioner, pump down the system following the procedure below so that no refrigerant is
released into the atmosphere.
1) Turn off the breaker.
2) Connect the gauge manifold valve to the service port of the stop valve on the gas pipe side of the outdoor unit.
3) Fully close the stop valve on the liquid pipe side of the outdoor unit.
4) Turn on the breaker.
5) Start the emergency COOL operation on all the indoor units.
6) When the pressure gauge shows 0.05 to 0 MPa [Gauge] (approximately 0.5 to 0 kgf/cm²), fully close the stop valve on the gas
pipe side of the outdoor unit and stop the operation. (Refer to the indoor unit installation manual about the method for stopping
the operation.)
* If too much refrigerant has been added to the air conditioner system, the pressure may not drop to 0.05 to 0 MPa [Gauge] (ap-
proximately 0.5 to 0 kgf/cm²), or the protection function may operate due to the pressure increase in the high pressure refriger-
ant circuit. If this occurs, use a refrigerant collecting device to collect all of the refrigerant in the system, and then recharge the
system with the correct amount of refrigerant after the indoor and outdoor units have been relocated.
7) Turn off the breaker. Remove the pressure gauge and the refrigerant piping.
Method of Charging refrigerant
Ŷ
MXZ-3F54VF/3F68VF/4F72VF
Piping Connection Indoor unit
+ =
number *1
+
of speci ¿ c I/U *2
+
length
0.0 kg
kg _ _ _ _ _ _ kg _ _ _ _ _ _ 1.4 kg g k _ _ _ _ _ _
Ŷ
MXZ-2F42VF/2F53VF/2F53VFH
Piping
+
=
length
1.2 kg 1.2 kg 0.0 kg
Ŷ
MXZ-2F33VF
Piping
+ =
length
1.0 kg 1.0 kg 0.0 kg
*1:If you connect indoor unit number 3 or 4 units, please add to charge refrigetrant amount
0.5kg
*2:If you connect specific indoor unit(s), please add to charge refrigetrant amount
0.17kg per 1unit
Specific indoor unit is following: MSZ-LN18/25/35VG MLZ-KP25/35/50VF
SEZ-M50DA(L) PCA-M50/60KA
PEAD-M50JA(L)Q
*3: In case total refrigerant amount exceed
2.4kg
depending on combination, please charge only
1.0kg
for maximum.
Pre charge
Total
refrigerant
Total
refrigerant *3
Pre charge
Total
refrigerant
Pre charge
When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes.
The compressor may burst and cause injury if any foreign substance, such as air, enters the pipes.
WARNING
PUMPING DOWN
OBH790