McQuay MDS030AR Applications Manual page 72

Design & installation Guide For McQuay MDS Multi System
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Duct Working Installation
Air supply duct working installation
Two types of air supply duct working: round and rectangle. Round air duct working can be
connected up to the air supply inlet directly; while the rectangle one needs to be connected with
a transition air duct to air supply inlet, and separate to the air diffuser. Pick up the selected air
distributor or diffuser to meet the application requirements.
Air return duct working installation
To connect with return air inlet of indoor units, the other end connecting with return air inlet of
ceiling. Make a sailcloth foldaway air duct, and strengthen it with 8# iron rope, in this way, the unit
can be adjusted freely depending on ceiling height.
Insulation of duct working
Both air supply and return duct working shall be equipped insulation material with aluminum foil.
Electrical heater and heating coil installation
The way to install electrical heater and heating coil is almost the same, both need to connect to
air outlet of indoor units as shown as followings:
electrical heater joint
Install MCK-T series indoor unit
Notes:
a. Ensure the space for installation.
b. Ensure no barrier, and good ventilation is a must.
Please refer to the below fixed:
To refer to the above installation dimension to ensure the performance of units as much as
possible. The supports shall carry weight 4 times larger than the indoor units to avoid unneces-
sary vibration and reduce the noise. The unit must be installed horizontally, and ensure enough
ceiling height and space for installation.
obstacle
Installation instruction
a. To keep indoor units from the source of heat and vapor (do not install in the entrance).
b. To measure the position of fixing and drill hole in the ceiling and fix the units tightly.
c. The paper template may change with the temperature and humidity, so please measure the
dimension before usage.
d. Ensure the paper temperate is the same dimension as hole dimension in the ceiling.
e. Before the completion of ceiling decoration, leave the paper template with the indoor unit.
f. Ensure the distance between the hang poles is 620.4mm
g. To use screw to fix the indoor units tightly.
indoor unit return air
heating coil
0.5m
0. 5m
indoor unit
floor
indoor unit
joint
‡ ¸fi
‰ł ¸fi
0. 5m
girder
790.0mm.
return air