Install Drain Joint; Fix Outdoor Unit; Connect Indoor And Outdoor Pipes; Neaten The Pipes - Friedrich MWM09Y1J Service Manual

(1) Take sufficient protective measures when installing the
outdoor unit.
(2) Make sure the support can withstand at least four times the
unit weight.
(3) The outdoor unit should be installed at least 1 1/6inch
above the floor in order to install drain joint.(As show in Fig.18)
(4) For the unit with cooling capacity of 2300W~5000W, 6
expansion screws are needed; for the unit with cooling capacity
of 6000W~8000W, 8 expansion screws are needed; for the
unit with cooling capacity of 10000W~16000W, 10 expansion
screws are needed.
At least 1 1/6 inch
above the floor
Fig.18
(1) Connect the outdoor drain joint into the hole on the chassis.
(2) Connect the drain hose into the drain vent.
(As show in Fig.19)
(1) Place the outdoor unit on the support.
(2) Fix the foot holes of outdoor unit with bolts.
(As show in Fig.20)
Foot holes
Foot holes
Fig.20
(1) Remove the screw on the right cable cross plate sub-assy and
valve cover of outdoor unit and then remove the cable cross plate
sub-assy and valve cover.(As show in Fig.21)
(2) Remove the screw cap of valve and aim the pipe joint at the
bellmouth of pipe.(As show in Fig.22)
Liquid pipe
Liquid
gas pipe
valve
gas valve
Fig.22
(3) Pretightening the union nut with hand.
(4) Tighten the union nut with torque wrench .
Refer to the following table for wrench moment of force
Hex nut diameter(inch)
Φ1/4
Φ3/8
Φ1/2
Φ5/8
Φ3/4
Drain vent
Chassis
Outdoor drain join t
Drain hose
Fig.19
Screw
Cable Cross
Plate Sub-assy
Valve Cover
Fig.21
Pipe joint
Union nut
Tightening torque(ft∙Ibf)
11~14.7
22.8~29.5
33.2~40.6
44.3~47.9
51.6~55.3
(1) Put power connection wire and power wire through the wire-
-passing hole.
(2) Remove the wire clip; connect the power connection wire
and power wire to the wiring terminal; fix them with screws.(As
show in Fig.23)
(3) Fix the power connection wire and power wire with wire clip.
(4) Install the cable cross plate sub-assy.
cable cross
plate sub-assy
cord clamp
power connect wire
power wire
(1) After tightening the screw, pull the power cord slightly to
check if it is firm.
(2) Never cut the power connection wire to prolong or shorten
the distance.
(3) The connecting wire and connection pipe cannnot touch
each other.
(4) Top cover of outdoor unit and electric box assembly should
be fixec by the screw. Otherwise, it can cause a fire, or short
circuit caused by water or dust.
wire-passing
hole
wire pipe
Fixed nut
(1) The pipes should be placed along the wall, bent reasonably
and hidden possibly. Min. semidiameter of bending the pipe is
4inch.
(2) If the outdoor unit is higher than the wall hole, you must set
a U-shaped curve in the pipe before pipe goes into the room,
in order to prevent rain from getting into the room.(As show in
Fig.24)
Wall
Fig.24
U-shaped curve
Drain hose
2 3
N(1)
N L
N L
Indoor unit connection
Fig.23
Finish
The drain hos
can't raise
upwards
Fig.25
Installation and Maintenance