Install Outdoor Unit - Friedrich MWM12Y1J Installation And Operation Manual

Install outdoor unit

1. Remove the cover on right side of outdoor unit.
Take off wire clamp.
2.
cord to the terminal board. Wiring should be sized for
indoor unit too.
3.Fix the power connection cord with wire clamp.
4.Confirm if the wire has been tighend properly.
5.Reinstall terminal cover.
NOTE:
Incorrect wiring may cause malfunction of parts.
●
After the wire has been fixed, ensure that no wires
●
will contact others.
1. Connect charging hose of manifold valve to charge end of low pressure
valve (both high/low pressure valves must be tightly shut).
2. Connect joint of charging hose to vacuum pump.
3. Fully open handle handle of Lo manifold valve.
4. Open the vacuum pump to evacuate. At the beginning, slightly
loosen joint nut of low pressure valve to check if there
is air coming inside. (If noise of vacuum pump has
been changed, the reading of multimeter is 0) Then
tighten the nut.
5. Keep evacuating for more than 15 mins and
make sure the reading of multi-meter 500 Microns
and holding.
6. Fully open high/low pressure valves.
7. Remove charging hose from charging end of low pressure valve.
8. Tighten bonnet of low-pressure valve. (As shown in Fig.9)
Condensate drainage of outdoor unit (no for cooling only)
The condensate and defrosting water formd during heating
in the outdoor unit can be properly discharged by drainage
pipe .
Installation method:set the drain connection in
chassis has been installed and then connect drainage pipe
with drain nozzle,so that condensate and defrosting waer can
be properly discharged
Electrical wiring
Connect and fix the power connection
Air purging and leakage test
Cable Cross
Plate Sub-assy
Ø
25 hole of the
20
For some model:
N(1) 2 3
Indoor unit connection
Liquid pipe
Gas pipe
Valve
cap
Vacuum pump
Fig.9
Chassis
drain
Vacuum
gauge