33
port cap
Be sure to use a torque wrench to tighten the
service port cap to a torque 18N.m.
Be sure to check the gas leakage.
7.7 Re-installation while the outdoor
unit need to be repaired
1. Evacuation for
the whole system
Procedure:
1). Confirm that both the 2-way and 3-way
valves are set to the opened position.
2). Connect the vacuum pump to 3-
way valve’s
service port.
3). Evacuation for approximately one hour.
Confirm that the compound meter indicates
-0.1Mpa(14.5Psi).
4). Close the valve (Low side) on the charge set,
turn off the vacuum pump, and confirm that the
gauge needle does not move (approximately 5
minutes after turning off the vacuum pump).
5). Disconnect the charge hose from the
vacuum pump.
2. Refrigerant charging
Procedure:
1). Connect the charge hose to the charging
cylinder, open the 2-way valve and the 3-way
valve
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. Be sure
to check for gas leakage.
Summary of Contents for MSV1-09HRFN1-MT0W
Page 20: ...16 6 Wiring Diagram 6 1 Indoor Unit MSV1 09HRFN1 MT0W MSV1 12HRFN1 MT0W...
Page 21: ...17 MSV1 12HRDN1 MQ0W...
Page 22: ...18 MSV1 18HRDN1 MQ0W MSV1 24HRDN1 MQ0W...
Page 23: ...19 6 2 Outdoor Unit MOC 09HFN1 MTOW MOC 12HFN1 MTOW...
Page 24: ...20 MOC 12HDN1 MQ0W...
Page 25: ...21 MOC 12HDN1 MQ0W with low ambient temp cooling function...
Page 26: ...22 MOF 18HDN1 MQ0W...
Page 27: ...23 MOF 18HDN1 MQ0W with low ambient temp cooling function...
Page 28: ...24 MOG 24HDN1 MQOW...
Page 29: ...25 MOG 24HDN1 MQOW with low ambient temp cooling function...
Page 30: ...26 MOC 09HFN1 MTOW MOC 12HFN1 MTOW...
Page 31: ...27 MOC 12HDN1 MQ0W...
Page 32: ...28 MOF 18HDN1 MQ0W MOG 24HDN1 MQOW...
Page 60: ...56...
Page 63: ...59 P U P V...
Page 64: ...60 P W P N...
Page 90: ...86 16 2 Capacitor clip 1 201200100002 35 Electric heater of chassis 1 202403100187...