Connecting the drain hose to the outdoor unit
A(Gas)
Performing leak tests
The designs and shape are subject to
change according to the model.
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.
To check for gas leaks on the Then, using a leak detector, check the
Outdoor unit Valves on sections A and B.
A(Gas)
B(Liquid)
B
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 A 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.
5. Be sure to plug the rest of drain holes not connected with drain plugs using drain caps.
DRAIN CAP(5EA)
DRAIN PLUG(1EA)
Model A B
AC026HCADKH
AC035HCADKH
AC052HCADKH
80mm
↑
13mm
AC060HCADKH
AC071HCADKH
AC052HCAPKH
80mm
↑
30mm
DRAIN CAP(4EA)
DRAIN PLUG(1EA)
✴
026/035
✴
✴
052/060/071
✴
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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