User manual

39
ENGLISH
3. Connect the charging hose of the low-pressure side of manifold gauge to a
gas service port as seen in the picture.
4. Open the valve of the low pressure side of manifold gauge counterclockwise.
5. Purge the air in the connected pipes using the vacuum pump for about
15 minutes.
 
Make sure that pressure gauge shows -0.1MPa(-76cmHg) after about
10 minutes.
This procedure is very important to avoid a gas leak.
 
Close the valve of the low pressure side of manifold gauge clockwise.
 
Turn o the vacuum pump.
 
Check for 2 minutes if there is any pressure change.
 
Remove the hose of the low pressure side of manifold gauge.
6. Set a valve cork of liquid and gas service port to the open position.
7. Mount the valve stem nuts and the service port cap to the valve, and tighten
them at the torque of 183kgf•cm with a torque wrench.
8. Check for a gas leak paying particular attention to the 3-way valve’s stem nuts
and to the service port cap (Refer to page 41).
Vacuum
Pump
Manifold gauge
Valve
Gas service port
<Low pressure>
Liquid service port
<High pressure>
(Backward flowing
prevention)
• TheremainingairintheRefrigerationcycle,whichcontainsmoisture,maycausemalfunctiononthecompressor.
• Alwayscontacttheservicecenteroraprofessionalinstallationagencyforproductinstallation.
B
(liquid)
Stem nut
Valve stem
A
(Gas)
Addrefrigerantchargeaccordingtotablebelow:
If you use a pipe longer than 5m,
‘A’g of refrigerant R-410A must be added for each extra meter.
If you use a pipe shorter than 5m,
The purge time is normal.
Refer to the Service Manual for further details.
Adding Refrigerant
Model A

09/12

15

18/24

25
Boracay ET_AR09FSFT@_IBIM_DB68-03377A_EN-7.indd 39 2014/12/11 17:23:10