86
Procedure
1). Confirm that both the 2-way and 3-way
valves are open.
Remove the valve stem caps and confirm that
the valve stems are open.
Be sure to use a hexagonal wrench to operate
the valve stems.
2). Connect the charge hose with the push pin
of handle lo to the 3-way valves gas service
port.
3). Purge the air from the charge hose.
Open the handle Lo valve of the manifold valve
slightly to purge air from the charge hose for 5
seconds and then close it quickly.
4). Close the 2-way valve.
5). Turn on the air conditioner in cooling mode.
Turn it off when the gauge indicates
-0.1MPa(14.5Psi).
6).Immediately close the 3-way valve
Do this quickly so that the gauge displays a
value between 0.3 to 0.5 Mpa(43.5 to 72.5Psi).
Disconnect the charge set, and tighten the
2-way and 3-
way valves’ stem nuts.
Use a torque wrench to tighten the 3-way valves
service port cap to a torque of 18N.m.
Be sure to check for gas leaks.
2. Air Purging by the Refrigerant
Procedure:
1). Confirm that both the 2-way and 3-way
valves are closed.
2). Connect the charge set and a charging
cylinder to the service port of the 3-way valve
Leave the valve on the charging cylinder closed.
3). Purge the air from the charge hose.
Open the valves on the charging cylinder and
the charge set. Purge the air by loosening the
flare nut on the 2-
way valve approximately 45’
for 3 seconds and then closing it for 1 minute.
Repeat 3 times.
After purging the air, use a torque wrench to
tighten the flare nut on the 2-way valve.
4). Check for gas leaks
Check the flare connections for gas leakage.
5). Discharge the refrigerant.
Close the valve on the charging cylinder and
discharge the refrigerant by loosening the flare
nut on the 2-
way valve approximately 45’ until
the gauge indicates 0.3 to 0.5 Mpa(43.5 to
72.5Psi)
6). Disconnect the charge set and the charging
cylinder, and open the 2-way and 3-way valves
Be sure to use a hexagonal wrench to operate
the valve stems.
7). Mount the valve stems nuts and the service
port cap.
Be sure to use a torque wrench to tighten the
service port cap to a torque 18N.m.
Be sure to check for gas leakage.
12.4.6 Re-Installation When the Outdoor
Unit Requires Repairs
1. Evacuation for
the whole system
Summary of Contents for CCA3U-09HRFN1-MC
Page 8: ...5 2 2 Part names of Indoor Outdoor units Cassette Units ...
Page 9: ...6 A5 Duct Units A6 Duct Units ...
Page 10: ...7 Console Units ...
Page 11: ...8 Ceiling floor Units ...
Page 12: ...9 HESP DUCT Units ...
Page 31: ...28 Console Units 16 Drain pipe 195 Hanging arm Unit mm 700 600 210 ...
Page 38: ...35 Console Units Ceiling floor Units ...
Page 43: ...40 CFAU 09HRFN1 M C CFAU 12HRFN1 M C MCD 36HRFN1 M C MCD 48HRFN1 M D ...
Page 44: ...41 CTBU 36HWFN1 M C CTBU 48HWFN1 M C ...
Page 45: ...42 MUEU 18HRFN1 M C MUEU 24HRFN1 M C MUE 36HRFN1 M C ...
Page 46: ...43 MUE 48HRFN1 M C MUE 60HRFN1 MW ...
Page 47: ...44 MUE 36HRFN1 M C MUE 48HRFN1 M C ...
Page 48: ...45 MUE 60HRFN1 MW MTI 18HWFN1 MT0W MTIU 24HWFN1 MW ...
Page 49: ...46 MTIU 36HWFN1 MW MTIU 48HWFN1 MW MHG 60HWFN1 MW ...
Page 51: ...48 MOBA30 09HFN1 MT0W MOB30 12HFN1 MT0W ...
Page 52: ...49 MOD30 24HFN1 MT0W MOD01 23HFN1 MT0W ...
Page 53: ...50 MOD30U 36HFN1 M ...
Page 59: ...56 CTBU 09HWFN1 M C Code 0 Code 1 Code 2 Code 3 Code 4 ...
Page 60: ...57 CTBU 12HWFN1 M C Code 0 Code 1 Code 2 Code 3 Code 4 ...
Page 61: ...58 CTBU 18HWFN1 M C Code 0 Code 1 Code 2 Code 3 Code 4 ...
Page 62: ...59 CTBU 24HWFN1 M C Code 0 Code 1 Code 2 Code 3 Code 4 ...
Page 63: ...60 CTB 36HWFN1 M C Code 0 Code 1 Code 2 Code 3 Code 4 ...
Page 64: ...61 CTB 48HWFN1 M C Code 0 Code 1 Code 2 Code 3 Code 4 ...
Page 74: ...71 12 Field Wiring 36K 48K 60K ...
Page 123: ...120 P U P V ...
Page 124: ...121 P W P N ...
Page 141: ...138 ...
Page 187: ...184 5 Remove the four fixing screws of the fan motor then remove the motor 5 ...