Air Purge; Test Operation - Carrier 42HQE009 Installation Manual

42HQE009/012/018/022-38YE009/012/018/022
Air purge and test operation

Air purge

Choose purge method from the table:
Models Connective
pipe length
38YE009/012 Less than 5 m ------
38YE018/022
38YE009/012 5~10m
38YE018 5~15m
38YE022 5~20m
• 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
Gas side 38YE009
38YE012
38YE018
38YE022
Liquid side 38YE009
38YE012
38YE018
38YE022
³
A
B
¿
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)
³ Indoor unit
² Flare nut
· Outdoor unit
¶ Stopper
» Refrigerant gas
º Cap
¿ Packed valve
¾ Valve stem
´ Half union
µ Valve body
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
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.
Additional amount Air purging
of refrogeratant to method
be charged
Use
(pipe length-5)x30g vaccum
pump
(pipe length-5)x50g
size N.cm kgf.cm
Ø 9.52 2940 300
Ø 9.52 2940 300
Ø 12.7 4900 500
Ø 15.88 7350 750
Ø 6.35 1570 160
Ø 6.35 1570 160
Ø 6.35 1570 160
Ø 9.52 2940 300
»
X C
Y D
´
²
¶
µ
¾
5
Pa).
¸ Manifold valve
¹ Compound meter
-76cmHg
Pressure gauge
Handle Lo
Handle Hi
Charge hose
Vacuum pump
Packed valve
GAS LEAK CHECK
Make sure no gas come out from connections
with leak detector or soap water.
CAUTION
A: Lo packed valve
B: Hi packed valve
C and D are ends of indoor unit
connection.
·
E Indoor Unit check point
F Outdoor unit check point
G Cover
Test operatiopn
Perform test operation after completing gas leak check at the flare
nut connections and electrical safety check.
º
Manual switch
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.
E N G L I S H
¸
¹
E D
G
F B
Auto/cool
C
A
GB - 9