jobsite. A nesting feature ensures a positive basepan to roof
curb seal when the unit is roof mounted. A convenient
3
⁄
4
-in.
wide perimeter flange makes frame mounting on a rooftop easy.
Downflow Operation is easily provided in the field to allow ver-
tical ductwork connections. The basepan utilizes knockout style
seals on the bottom openings to ensure a positive seal in the
horizontal airflow mode.
Integrated Gas Control (IGC) Board provides safe and effi-
cient control of heating and simplifies troubleshooting through
its built-in diagnostic function.
Cabinets are constructed of heavy-duty, phosphated, zinc-
coated prepainted steel capable of withstanding 500 hours in
salt spray. Interior surfaces of the evaporator/heat exchanger
compartment are insulated with cleanable semi-rigid insulation
board, which keeps the conditioned air from being affected by
the outdoor ambient temperature and provides improved indoor
air quality. (Conforms to American Society of Heating, Refrig-
eration and Air Conditioning Engineers No. 62P.) The sloped
drain pan minimizes standing water in the pan.
TABLE OF CONTENTS
Page
Features/Benefits ................................1,2
Model Number Nomenclature ........................3
ARI Capacities ..................................3,4
Physical Data ....................................5
Options and Accessories ..........................6,7
Base Unit Dimensions.............................8,9
Accessory Dimensions ............................10
Selection Procedure ..............................11
Performance Data ..............................12-17
Typical Piping and Wiring ..........................18
Application Data .................................19
Electrical Data ...................................20
Typical Wiring Schematics ........................21-23
Controls ........................................24
Guide Specifications ............................25,26
2
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