McQuay A Serie Manuel D'installation page 9

Preliminary Site Survey
• Electrical supply and installation is to conform to local authority's (e.g. National Electrical Board) codes and regulations.
• Voltage supply fluctuation must not exceed + 10% of rated voltage. Electricity supply lines must be independent of welding
transformers which can cause high supply fluctuation.
• Ensure that the location is convenient for wiring, piping and drainage.
• The indoor unit must be installed in such that is free from any obstacles in path of cool air discharge and warm air return,
and must allow spreading of air throughout the room (near the center of the room).
• Must be provide clearance for the indoor unit from the wall and obstacles as shown in the figure.
Obstacle
• The installation place must be strong enough to support a load 4 times the indoor unit weight to avoid amplifying noise and
vibration.
• The installation place (hanging ceiling surface) must be assuring levelness and the height in the ceiling is 350mm or more.
• The indoor unit must be away from heat and steam sources (avoid installing it near an entrance).
Unit Installation
890.0 mm (Ceiling board opening)
790.0 mm (Hanging rod)
Unit size 820.0 mm
Unit
Unit Hanging
Indoor Unit
All manuals and user guides at all-guides.com
INSTALLATION OF THE INDOOR UNIT
Min. 0.5 m Min. 0.5 m
Floor
Piping Direction
Ceiling
Board
35.0 mm
1-4
• Measure and mark the position for the hanging rod. Drill
the hole for the angle nut on the ceiling and fix the hanging
rod.
• The installation template is extended according to
temperature and humidity. Check on dimensions in use.
• The dimensions of the installation template are the same
as those of the ceiling opening dimensions.
• Before ceiling laminating work is completed, be sure to
fit the installation template to the indoor unit.
NOTE
Be sure to discuss the ceiling drilling work with the
installers concerned.
• Confirm the pitch of the hanging rod is 790mm × 620.5mm
sharp.
• Hold the unit and hang it on the hanging rod with the nut
and washer.
• Adjust the unit height to 35.0 mm between the indoor unit
bottom surface and the ceiling surface.
• Confirm with a level gauge that the unit is installed
horizontally and tighten the nut and bolt to prevent unit
falling and vibration.
• Open the ceiling board along the outer edge of the paper
installation template.
Min. 0.5 m