Double Deck J4PG4 Installation Manual

7
2. INTRODUCTION
A Package Gas Electric Unit is a fully self-contained, combination gas
heating/electric cooling unit designed for outdoor installation. All unit
sizes have return and discharge openings for both horizontal and
downflow configurations, and are factory shipped with all downflow
duct openings covered. Units may be installed either on a rooftop or
on a cement slab.
In gas heating mode, this unit is designed for a minimum continuous
return-air temperature and a maximum continuous return-air
temperature. Failure to follow these return-air temperature limits may
affect reliability of heat exchangers, motors, and other components.
This booklet contains the installation and operating instructions for
your Package Gas Electric Unit. There are some precautions that
should be taken to derive maximum satisfaction from it. Improper
installation can result in unsatisfactory operation or dangerous
conditions. Read this booklet and any instructions packaged with
separate equipment required to make up the system prior to
installation. Give this booklet to the owner and explain its provisions.
The owner should retain this booklet for future reference.
A Package Gas Electric Unit includes a hermetically-sealed
refrigerating system consisting of a compressor, condenser coil,
evaporator coil with thermal expansion valve (TXV) or throttle valve, a
circulation air blower, a condenser fan, a heat exchanger assembly,
gas burner and control assembly, combustion air motor and fan, and
all necessary internal electrical wiring. The cooling system of these
units is factory-evacuated, charged and performance tested. All units
are factory charged with Refrigerant R410A.
The figure shown in this manual is for reference only and may be
slightly different from the actual product.
Outdoor coil protective grille
Outdoor fan grille
Fig. 2-1 Unit Dimensions
Front
High voltage
conn. 1-1/8″ Dia
Low voltage
conn. 7/8″ Dia
Condensate drain
connection 3/4″
NPT (Trap required)
44-1/16″
2-3/8″
12-7/8″
14-1/4″
6-5/8″
11-3/4″
50-11/16″
6-5/8″
6-5/8″
11-3/4″
3-7/16″
35-13/16″
5-1/16″
J4PG4024B1060AA,J4PG4030B1060AA,J4PG4036B1090AA,J4PG4042B1090AA
5-7/16″ 3-15/16″
4-1/16″
6-3/16″
* The above figure for reference purpose only.
Compressor access