General Warnings; Clearances And Accessibility - McQuay ACU018ARAY Installation And Maintenance Manual

GENERAL WARNINGS

Before servicing or installing, the electrical power must
be in OFF. More than one disconnect may exist.
Failure to disconnect all power can cause electrical
shock, serious personal injury or death.
The unit must have an uninterrupted, unbroken
electrical ground. Failure to properly ground can cause
severe personal injury or death.
Installation and service by trained, qualified technicians
only. High pressure and electricity can cause severe
personal injury or death. Observe ALL warnings
contained in this manual and the labels/tags attached to
the equipment.
When installing or servicing, wear protective gloves,
gear and eyeware. Also observe special safety
requirements (hard hats etc.).
CCAUTION
To protect the unit when welding close to the painted
surfaces, use a quenching cloth to prevent scorching or
marring the equipment finish.
CCAUTION
Read these instructions before performing this
installation or servicing this unit. All installations must
be in accordance with all national, state, or local
building codes.

CLEARANCES AND ACCESSIBILITY

The condensing unit is designed to be located outside the
building with unobstructed condenser air inlet and discharge.
Additionally, the unit must be situated to permit access for ser-
vice and installation. Condenser air enters from three sides.
Air discharges upward from the top of the unit. Refrigerant
tube electrical connections are made on the right side of the
unit as you face the compressor compartment. The best and
most common application is for the unit to be located 10" from
the back wall with the connection side facing the wall. Refer to
Figures 1 and 2. This "close to the wall" application mini-
mizes exposed tubing and wiring and reduces the space for
children to run around the unit. This will help to avoid possi-
ble damage to the tubes or wiring and/or personal injury.
IM-800
WARNING
WARNING
WARNING
WARNING
Figure 1. Clearances and Accessibility
Service Access
18" Min.
Service Access
18" Min.
Figure 2. Clearances and Accessibility
Close to the wall application provides free, unobstructed air to
the other two sides. In more confined application spaces, such
as corners, provide a minimum 10" clearance on all air inlet
sides. Allow 18" minimum for service access to the compres-
sor compartment and controls.
The top of the unit should be completely unobstructed. If units
are to be located under an overhang, there should be a mini-
mum of 36" clearance and provisions made to deflect the
warm discharge air out from the overhang.
10" Min.
10" Min.
10"
10"
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