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Rooftop Installation
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
RIGGING DETAILS
O PREVENT PROPERTY D AMAGE, T HE U NIT SHOULD R EMAIN IN A N UPRIGHT
T
POSITION DURING ALL RIGGING AND MOVING O PERATIONS.
LIFTING AND MOVING W HEN A CRANE I S 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 dimen-
sions are shown in roof curb installation instructions.
Refer to the 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.
GAS PIPING
IMPORTANT NOTE: This unit is factory set to operate on natural
gas at the altitudes shown on the rating plate.
T
O AVOID PROPERTY D AMAGE, P ERSONAL INJURY OR DEATH WHEN E ITHER
USING PROPANE GAS ALONE OR A T HIGHER A LTITUDES, O BTAIN AND INSTALL
THE PROPER C ONVERSION KIT(S).
UNSATISFACTORY OPERATION AND/OR EQUIPMENT DAMAGE.
U
S
. INSTALLATIONS ONLY A ND ARE NOT APPROVED F OR U SE
KITS A RE F OR
.
C
IN
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
LPM-07
LPM-08
7
WARNING
T
O FACILITATE
Rigging
WARNING
F
AILURE T O DO S O CAN RESULT IN
H
IGH ALTITUDE
Model
Single Stage Heating Models
Two-Stage Heating Models
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