GB - 9
42HQE009/012/018/022-38YE009/012/018/022
E N G L I S H
Air purge
Choose purge method from the table:
Models
Connective
Additional amount
Air purging
pipe length
of refrogeratant to
method
be charged
38YE009/012 Less than 5 m ------
38YE018/022
Use
38YE009/012 5~10m
(pipe length-5)x30g
vaccum
38YE018
5~15m
pump
38YE022
5~20m
(pipe length-5)x50g
• For the R407C refrigerant model, make sure the refrigerant added
into air conditioner is liquid form in any cases.
• When relocate the unit to another place, use vacuum pump to
perform evacuation.
CAUTION IN HANDING THE PACKED VALVE:
• Open the valve stem until it hits against the stopper. Do not try to
open it further.
• Securely tighten the valve stem cap with a spanner or the like.
Pipe
Models
size
N.cm
kgf.cm
Gas side
38YE009
Ø 9.52
2940
300
38YE012
Ø 9.52
2940
300
38YE018
Ø 12.7
4900
500
38YE022
Ø 15.88
7350
750
Liquid side
38YE009
Ø 6.35
1570
160
38YE012
Ø 6.35
1570
160
38YE018
Ø 6.35
1570
160
38YE022
Ø 9.52
2940
300
Air purge and test operation
When Using the Vacuum Pump
(For method of using a manifold valve, refer to its operation manual.)
1. Completely tighten the flare nuts, A, B, C, D, connect the
manifold valve charge hose to a charge port of the packed valve
on the gas pipe side.
2. Connect the charge hose connection to the vacuum pump.
3. Fully open the handle Lo of the manifold valve.
4. Operate the vacuum pump to evacuate. After starting
evacuation, slightly loose the flare nut of the packed valve on the
gas pipe side and check that the air is entering.(Operation noise
of the vacuum pump changes and a compound meter
indicates 0 instead of minus)
5. After the evacuation is complete, fully close the handle Lo of
the manifold valve and stop the operation of the vacuum pump.
• Make evacuation for 15 minutes and more and check that
the compound meter indicates -76cmHg(-1.0x10
5
Pa).
6. Disconnect the charge hose from the charge connection of the
packed valve at the gas pipe side.
7. Fully open the packed valve stems B and A.
8. Securely tighten the cap of the packed valve.
Indoor unit
Outdoor unit
Refrigerant gas
Packed valve
Half union
A
B
C
D
X
Y
X Ø15.88 mm (38YE022)
Ø12.7 mm (38YE012/018)
Ø 9.52 mm (38YE009)
Y Ø 9.52 mm (38YE022)
Ø 6.35 mm (38YE009/012/018)
Flare nut
Stopper
Cap
Valve stem
Valve body
GAS LEAK CHECK
Make sure no gas come out from connections
with leak detector or soap water.
Test operatiopn
Perform test operation after completing gas leak check at the flare
nut connections and electrical safety check.
1. Connect the power, push the “ON/OFF” button on the remote
controller to begin testing.
2. Push mode button, select cooling, heating, fan mode to check if
all functions work well.
3. When the ambient temperature is too low (below temperatures
of 17
°
), the unit can't be controlled by the remote controller to
run at cooling mode. At this time, manual operation can be taken
to select cooling mode.
4. Be sure to set the manual switch on OFF after finishing the test
operation. Then installer should explain how to manipulate, fix,
and maintain their air conditioner. Also tell them that regular check
of the installation bracket and maintenance are necessary.
Clients should apply for inspecting to relevant department so as
to ensure the air conditioner can operate normally, safety and
reliably.
Manifold valve
Compound meter
-76cmHg
Pressure gauge
Handle Lo
Handle Hi
Charge hose
Vacuum pump
Packed valve
Auto/cool
Manual switch
E Indoor Unit check point
F Outdoor unit check point
G Cover
E
D
C
F B A
G
CAUTION
A: Lo packed valve
B: Hi packed valve
C and D are ends of indoor unit
connection.