Refrigerant Piping - McQuay International A08019025531 Manuel D'installation

The refrigerant piping can be routed to the unit in a
number of ways (left or right from the back of the unit), by
using the cut-out holes on the casing of the unit (see figure).
Bend the pipes carefully to the required position in order to
aligned it with the holes. For the right hand and rear side
out, hold the bottom of the piping and then position it to the
required direction (see figure). The condensation drain hose
can be taped to the pipes.
Right & Rear Side Routing
Drain hose
Fix with vinyl tape
Water Drainage Piping
The indoor drain pipe must be in a downward gradient for
smooth drainage. Avoid situations that are likely to cause
water to leak.
Water Drainage
Water Water
Leaking Leaking
Correct
Wrong
Wrong
Piping Length & Elevation
If the pipe is too long, both the capacity and reliability of the unit will drop. As the number of bends increases, resistance
to the flow of refrigerant system increases, thus lowering cooling capacity, and as a result the compressor may become
defective. Always choose the shortest path and follow the recommendations as tabulated on next page :
Remark: The refrigerant that has been pre-charged in the outdoor unit is for piping length up to 5 m.
Indoor Unit
Outdoor Unit
Unit piping
End
dipped
Water
into water
Leaking
Drain
Wrong

REFRIGERANT PIPING

Vertical
Height
Difference
Max. H
L1 L2
Mount The Unit Onto The Installation Plate
Hook the indoor unit onto the upper portion of the
installation plate (Engage the two hooks at the rear top of
the indoor unit with the upper edge of the installation plate).
Ensure that the hooks are properly seated on the
installation plate by moving it to the left and right.
1. Hook the unit onto the installation plate.
2. A unit support plate on the
installation plate can be used to
hold the unit slanted (See figures)
to ease the piping installation
work.
Indoor Unit
Outdoor Unit
1-4
3. Fix the screw underneath
after completion of
installation.
Vertical
Height
Difference
Max. H
L1 L2 L3