Make sure no gas come out from connections
with leak detector or soap water.
A: Lo packed valve B: Hi packed valve
C and D are ends of indoor unit connection.
CAUTION
2. GAS LEAK CHECK
Indoor unit
check point
D
B
C
A
Outdoor unit
check point
Cover
3. TEST OPERATION
Perform test operation after completing gas leak check at the flare nut
connections and electrical safety check.
1. Connect the power, push the
"
COOL
"
button on the remote
controller to begin testing.
2. Check if all the functions works well while testing the air conditioner.
A protection feature prevents the air conditioner from being activated
for about 3 minutes when it is restarted immediately after operation
or when the power switch is turned on.
3. Be sure to set the tickle-type switch on OFF after finishing the test
operation.
Auto/cool o
Manual
switch
When relocate the unit to another place,
use vacuum pump to perform evacuation.
Choose purge method from the table:
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
5
compound meter indicates -76cmHg(-1.0x10 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.
Connective
pipe length
Less than 5m
5 10m
(Pipe length-5)x30g
Air purging
method
Use vacuum
pump
Additional amount of
refrigerant to be charged
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.
Valve stem cap tightening torque.
Gas pipe side ( 9.53): 2940N.cm (300kgf.cm)
Liquid pipe side ( 6.35): 1570N.cm (160kgf.cm)
.
.
.
.
.
CAUTION IN HANDING THE PACKED VALVE
1. AIR PURGE
~
Manifold valve
Outdoor
unit
Indoor
unit
Refrigerant gas
Flare nut
Stopper
Compound meter
-76cmHg
Handle Lo
Handle Hi
Charge hose
Charge hose
Vacuum pump
Pressure gauge
Cap
Valve body
Packed valve
Half union
12.7mm
6.35mm
A
C
D
B
Packed valve
Valve stem
9.53mm
( 10000Btu/h)
( 9000Btu/h)
Use vacuum
pump
For the R407C refrigerant model, make sure
the refrigerant added into air conditioner is
liquid form in any cases.
.
AIR PURGE AND TEST OPERATION
3
GB-10
42HQE009(012)/38YE009(012)
