Midea MCA3U-12HRFN1-QRD0W Installation Manual page 15

3. Using a 65-mm core drill, drill a hole in the wall. Make
sure that the hole is drilled at a slight downward angle,
so that the outdoor end of the hole is lower than the
indoor end by about 12mm . This will ensure proper
water drainage (See Fig. 6.5). Place the protective wall
cuff in the hole. This protects the edges of the hole and
will help seal it when you finish the installation
process.
Outdoor
12mm
B ra n c h p ip e
K e e p a c e rt a in d e g re e
D r a in a g e p ip e
W a te r flo w
D r a in t e e
W a te r flo w
Wall
Indoor
Fig. 6.5
W a te r flo w
G a s
M a in p ip e
D r a in a g e p ip e
W a te r flo w
W a te r flo w
D r a in t e e
NOTE: When drilling the wall hole, make sure to avoid
wires, plumbing, and other sensitive components.
4. Pass the drain hose through the wall hole. Make sure
the water drains to a safe location where it will not
cause water damage or a slipping hazard.
NOTE: The drainpipe outlet should be at least 5cm
above the ground. If it touches the ground, the unit may
become blocked and malfunction. If you discharge the
water directly into a sewer, make sure that the drain has
a U or S pipe to catch odors that might otherwise come
back into the house.
W a te r flo w
B ra n c h p ip e
D r a in a g e p ip e
W a te r flo w
W a t e r f lo w
W a te r flo w
G a s
M a in p ip e
D r a in t e e
W a te r flo w
W a te r flo w
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