ENGLISH
29
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 specically designed for HFC refrigerants.
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 o safely. Consequently, you must install a drain hose on the outdoor unit, following the
instructions below.
1. Make space more than 80 mm between the bottom of the outdoor unit and the ground for installation of the drain hose,
as shown in gure.
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 o correctly and safely.
‘B’ mm
13mm
80 mm
5. Be sure to plug the rest of drain holes not connected with drain plugs using drain caps.
DRAIN CAP(5EA)
DRAIN PLUG(2EA)
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.
CAC GD-EU_IM_32793A-23_EN.indd 29 2016-05-25 오후 7:08:45
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