Installation Of Indoor Unit - McQuay MWSC 010 Series Manual

Installation Of Indoor Unit

Installation of MCC unit
1) Preliminary site survey
Electrical supply and installation is to conform to local authorityʼs codes and regulations (e.g. National Electricity
Board), Voltage supply fl uctuation must not exceed ± 10% voltage. Voltage supply lines must be independent of
welding transformers which can cause high voltage fl uctuation. Ensure that the location is convenient for wiring
and piping.
2) Installation of indoor units
The indoor unit must be installed such that there is no short circuit of the cool discharge, comply to the installation
clearance recommended and make sure the location is suitable for piping and drainage.
The precaution steps:
I. Use the hanger supplied with the unit.
II. Ensure the support is stronger enough to withstand the weight of the unit.
III. Use the supplied drain socket to connect drainage pipe.
IV. The unit must be installed in such a way that the condensed water can be fl owed out smoothly.
Installation of ducts for MCC indoor unit
1) Air-supplying ducts
Two kinds of ducts are available, rectangular and round ducts (200mm).
Rectangular ducts are connected directly to discharge collar of indoor unit (Figure1).
Adding air-supplying adaptor to connect between indoor unit and round duct which elongating to the
air-distribution box and length of round duct should not be more than 6 meters (Figure 2).
Rivet hole
Figure 1 Connection for rectangular duct.
Ducting sizes (mm)
Dim
Size
Rectangular
Round ∅
H
L
Model MCC 010 MCC 015
M/MR
L 747
H 170
200
1 2
Figure 2 Connection for round duct.
MCC 020
M/MR M/MR
847 960
170 120
200 200
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3
4
5
6
MCC 025 MCC 030
M/MR M/MR
960 1310
120 120
200 200
MCC 050
M/MR
1570
120
200