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Performing leak tests
LEAK TEST WITH NITROGEN (before opening valves)
In order to detect basic refrigerant leaks, before recreating the vacuum and
recirculating the R-410A, it’s responsable of installer to pressurize the whole
system with nitrogen (using a cylinder with pressure reducer) at a pressure
above 40 bar (gauge) .
LEAK TEST WITH R-410A (after opening valves)
Before opening valves, discharge all the nitrogen into the system and create
vacuum . After opening valves check leaks using a leak detector for refrigerant
R-410A .
Once you have completed all the connections, check for possible leaks using
leak detector specifically designed for HFC refrigerants .
A(Gas)
A(Gas)
B(Liquid)
❋
❋
The designs and shape are subject to
change according to the model .
To check for gas leaks on the
Outdoor unit
Then, using a leak detector, check the
Valves on sections A and B .
Connecting the drain hose to the outdoor unit
When using the air conditioner in the heating mode, ice may accumulate . During de-icing (defrost operation), the
condensed water must be drained off safely . Consequently, you must install a drain hose on the outdoor unit, following the
instructions below .
1 . Make space more than 3 .15 inch between the bottom of the outdoor unit and the ground for installation of the drain
hose, as shown in figure .
2 . Insert the drain plug into the hole on the underside of the outdoor unit .
3 . Connect the drain hose to the drain plug .
4 . Ensure that the drained water runs off correctly and safely .
3 .15 inch
0 .51 inch
5 . Be sure to plug the rest of drain holes not connected with drain plugs using drain caps .
DRAIN CAP(5EA)
DRAIN PLUG(1EA)
❋
❋
When installing the product, make sure that the rack is not placed under the drain hole .
❋
❋
If the product is installed in a region of heavy snow, allow enough separation distance between the product and the
ground .
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2014-12-08 오후 3:12:47
