GPH16M Service Manual

PRODUCT DESIGN
16
LOCATION & CLEARANCES
NOTE: To ensure proper condensate drainage, unit must be
installed in a level position.
In installations where the unit is installed above ground level
and not serviceable from the ground (Example: Roof Top in-
stallations) the installer must provide a service platform for the
service person with rails or guards in accordance with local
codes or ordinances.
A/GPH16[24-48]M4**
24”
Min.*
24”
Min.*
36” Min.
*
A/GPH1660M4**
Unit Clearances
*In situations that have multiple units, a 48” minimum clearance
is required between the condenser coils.
Adequate clearance around the unit should be kept for safety,
service, maintenance, and proper unit operation. A total clear-
ance of 75” on the main control panel side of the unit is recom-
mended to facilitate possible fan shaft, coil, electric heat and
gas furnace removal. A clearance of 48” is recommended on
all other sides of the unit to facilitate possible compressor re-
moval, to allow service access and to insure proper ventilation
and condenser airflow. The unit must not be installed beneath
any obstruction. The unit should be installed remote from all
building exhausts to inhibit ingestion of exhaust air into the
unit fresh air intake.
PROTRUSION
Inspect curb to ensure that none of the utility services (elec-
tric) routed through the curb protrude above the curb.
NOTE: Roof overhang should be no more than 36" and
provisions made to deflect the warm discharge air out from the
overhang.
Minimum clearances are required to avoid air recirculation and
keep the unit operating at peak efficiency.
WARNING
TO PREVENT POSSIBLE DAMAGE, THE UNIT SHOULD
REMAIN IN AN UPRIGHT POSITION DURING ALL
RIGGING AND MOVING OPERATIONS. TO FACILITATE
LIFTING AND MOVING IF A CRANE IS USED, PLACE
THE UNIT IN AN ADEQUATE CABLE SLIDE.
Refer to Roof curb Installation Instructions for proper curb in-
stallation. Curbing must be installed in compliance with the
National Roofing Contractors Association Manual.
Lower unit carefully onto roof mounting curb. While rigging unit,
center of gravity will cause condenser end to be lower than
supply air end.
Roof Curb
A/GPH16[24-48]M4**
A/GPH Package Units are designed for outdoor installations
only in either residential or light commercial applications.
NOTE: To ensure proper condensate drainage, unit must be
installed in a level position.