7
•
The unit may be installed directly on wood floors or on
Class A, Class B, or Class C roof covering material.
•
To avoid possible personal injury, a safe, flat surface
for service personnel should be provided.
Roof Curb Installations Only:
•
Sufficient structural support must be determined prior
to locating and mounting the curb and package unit.
•
Ductwork must be constructed using industry
guidelines. The duct work must be placed into the
roof curb before mounting the package unit.
•
Curb insulation, cant strips, flashing and general
roofing material are furnished by the contractor.
Roof Curb Installation
Model
Roof Curb
DP3GM(24-48)***M41**
D14CRBPGCHMA
RIGGING DETAILS
WARNING
T
O PREVENT PROPERTY DAMAGE, T HE UNIT SHOULD R EMAIN IN AN UPRIGHT
POSITION DURING ALL RIGGING AND MOVING OPERATIONS.
T
O FACILITATE
LIFTING AND MOVING WHEN A CRANE IS USED, PLACE THE UNIT IN AN
ADEQUATE CABLE SLING.
Important:
If using bottom discharge with roof curb, ductwork
should be attached to the curb prior to installing the unit.
Ductwork dimensions are shown in roof curb installation
instructions.
Refer to the Roof Curb Installation Instructions for proper curb
installation. 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.
Unit should be lifted by the
4 holes
located at the
base frame
corners.
Lifting cables should be attached to the unit with
shackles. While rigging unit, center of gravity will cause the
condenser end (heavier) to be lower than supply air end. The
distance between the unit and the crane hook up should not
be less than 60”. The spreaders bars should span over the
unit to prevent damage to the cabinet from the lifting cables.
Rigging
GAS PIPING
IMPORTANT NOTE:
This unit is factory set to operate on
natural gas at the altitudes shown on the rating plate.
WARNING
T
O AVOID PROPERTY DAMAGE, PERSONAL INJURY OR DEATH WHEN EITHER
USING PROPANE GAS ALONE OR AT HIGHER A LTITUDES, OBTAIN AND INSTALL
THE PROPER C ONVERSION KIT(S).
F
AILURE T O DO SO CAN RESULT IN
UNSATISFACTORY OPERATION AND/OR EQUIPMENT DAMAGE.
H
IGH ALTITUDE
KITS A RE F OR
U
.
S
. INSTALLATIONS ONLY AND ARE NOT APPROVED F OR USE
IN
C
ANADA.
The rating plate is stamped with the model number, type of
gas and gas input rating. Make sure the unit is equipped to
operate on the type of gas available. Conversion to LP gas
is permitted with the use of the factory authorized conversion
kit LPM-07, for use with single stage models, or LPM-08, for
use with two-stage models. See table below.
LP Conversion Kit
Model
LPM-07
Single Stage Heating Models
LPM-08
Two-Stage Heating Models
Inlet Gas Pressure
Natural
Min. 5.0" W.C., Max. 10.0" W.C.
Propane
Min. 11.0" W.C., Max. 13.0" W.C.
