Installation manual

4
PREMIER INSTALLATION MANUAL
Safety Considerations
Installing and servicing heating and air conditioning equipment can be hazardous due to system pressure and electri-
cal components. Only trained and qualifi ed service personnel should install, repair or service heating and air conditioning
equipment.
Untrained personnel can perform the basic maintenance functions of cleaning coils and cleaning and replacing fi lters. All
other operations should be performed by trained service personnel. When working on heating and air conditioning equipment,
observe precautions in the literature, tags and labels attached to the unit and other safety precautions that may apply.
Follow all safety codes. Wear safety glasses and work gloves. Use a quenching cloth for brazing operations and have a
fi re extinguisher available.
Moving and Storage
Move units in the normal “up” orientation as indicated by the arrows on each carton. Horizontal units may be moved and
stored per the information on the carton. Do not stack more than three units in total height. Vertical units may be stored one
upon another to a maximum height of two units. Do not attempt to move units while stacked.
When the equipment is received, all items should be carefully checked against the bill of lading to be sure all crates and
cartons have been received. Examine units for shipping damage, removing the units from the cartons if necessary. Units
in question should also be internally inspected. If any damage is noted, the carrier should make the proper notation on the
delivery receipt, acknowledging the damage. Units are to be stored in clean, dry location to prevent damage.
Unit Location
Locate the unit in an indoor area that allows for easy removal of the fi lter and access panels. Location should have
enough space for service personnel to perform maintenance or repair. Provide suffi cient room to make water, electrical
and duct connection(s). If the unit is located in a confi ned space, such as a closet, provisions must be made for return air
to freely enter the space by means of a louvered door, etc. Any access panel screws that would be diffi cult to remove after
the unit is installed should be removed prior to setting the unit. On horizontal units, allow adequate room below the unit for
a condensate drain trap and do not locate the unit above supply piping. Care should be taken when units are located in
unconditioned spaces to prevent damage from frozen water lines and excessive heat that could damage electrical
components.
Installing Vertical Units
Vertical units are available in left or right air return confi gurations. Vertical
units should be mounted level on a vibration absorbing pad slightly larger than
the base to provide isolation between the unit and the fl oor. It is not necessary to
anchor the unit to the fl oor (see right). If access to the left side of the unit will be
limited after installation, remove the two mounting screws on the left side of the
control box before setting the unit (leave the two front mounting screws intact).
This will allow the control box to be removed with only the two front mounting
screws for future service.
WARNING: Before performing service or maintenance operations on a system, turn off main
power switches to the indoor unit. If applicable, turn off the accessory heater power switch.
Electrical shock could cause personal injury.
General Installation Information
Figure 1: Vertical Unit Mounting
Vibration
Absorbing
Mesh
or
Air
Pad