McQuay MDS030AR Applications Manual page 73

h. To adjust distance between the bottom panel and ceiling to 35.0mm.
i. To check whether the installation is horizontal, and indoor units are fixed tightly without dropping
off and vibration.
(Drill hole in ceiling) 890.0mm
790.0
(Machine dimension) 820mm
j. To cut the same shape of paper template in ceiling.
k. Drainage shall be smooth piping and slope installed.
l. To avoid drainage piping bent, shall be straight.
m. To install the drainage piping, do not exert too strong force.
n. It shall be installed diameter 20 mm host to connect outside part of drainage piping.
o. Drainage piping shall be covered with insulation material (thickness: 8.0mm polyphone plastic
material), to avoid the dropping off of the condensing water.
p. To connect the drainage host and flexible host.
q. To fill water to piping from the host connector to test the leakage.
r. After testing, to connect the other end of host to indoor units.
Note:
In this type of indoor units, a water pump is used to help to drain the condensing water, to install
unit horizontally to avoid leakage of water and condensing water dropping off.
Installation of front panel
To install the front panel, please check the piping connecting direction first.
(Follow the direction of connecting pipe shown in the front pane.)
To remove the paper template.
To remove the air filter and grill of front panel.
To use 4 screw bolts to fix the frame of front panel tightly.
To connect the indicator light with indoor unit and fan swing motor with indoor units
respectively.
Note:
Ensure the frame of the front panel is fixed tightly to avoid the leakage of cool and dropping of
condensing water.
Open
Indicator connecting wire
Connected to
the front panel
Connecting wire for swing motor
Design & installation Guide For McQuay MDS Multi System
Steeve
Nut
Washer
Nut
Cool air
Good setting
Screw bolt/pad
Control box
Indoor unit
Washer
Indoor unit
Drain pipe
clamp
Good setting
Drain & leakage test
Fill water
Flexible pipe
Indoor unit
flow
Ceiling
Ceiling
Bad setting
Drain pipe
Cool air
flow
Ceiling
Bad setting
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