PG80VTLA: Installation, Start-up, Operating and Service and Maintenance Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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12. Maintain a 1-in. (25 mm) clearance from combustible materials to
supply air ductwork for a distance of 36 in. (914 mm) horizontally
from  the  furnace.  See  NFPA  90B  or  local  code  for  further
requirements.
13. These furnaces SHALL NOT be installed directly on carpeting, tile,
or  any  other  combustible  material  other  than  wood  flooring.  In
downflow  installations,  factory  accessory  floor  base  MUST  be
used when  installed on  combustible materials  and wood  flooring.
Special  base  is  not  required  when  this  furnace  is  installed  on
manufacturer’s  Coil Assembly  Part  No.  CNRV,  CNPV,  CAP,  or
CAR or when Coil Box Part No.  KCAKC is  used.  See Fig. 2  for
clearance to combustible construction information. 
INTRODUCTION 
 
A10269
Fig. 2 – Clearances to Combustibles
This 4-way multipoise Category I fan-assisted furnace is CSA (formerly
A.G.A. and C.G.A.) design-certified. A Category I fan-assisted furnace is
an appliance equipped with an integral mechanical means to either draw
or force products of combustion through the combustion chamber and/or
heat exchanger. The furnace is factory-shipped for use with natural gas.
This  furnace  is  not  approved  for  installation  in  mobile  homes,
recreational vehicles, or outdoors. 
This furnace is designed for minimum continuous return-air temperature
of 60°F (15°C) db or intermittent operation down to 55°F (13°C)db such
as  when  used  with  a  night  setback  thermostat.  Return-air  temperature
must  not  exceed  80°F  (27°C)  db.  Failure  to  follow  these  return-air
temperature limits may affect reliability of heat exchangers, motors, and
controls. (See Fig. 3). 
For  accessory  installation  details,  refer  to  the  applicable  instruction
literature.
NOTE: Remove all shipping brackets and materials before operating the
furnace. 
 
A06745
Fig. 3 – Return Air Temperature
 
A02054
Fig. 4 – Prohibit Installation on Back
 
A93044
Fig. 5 – Installation in a Garage
CODES AND STANDARDS 
Follow  all  national  and  local  codes  and  standards  in  addition  to
these instructions. The installation must comply with regulations of the
serving gas supplier, local building, heating, plumbing, and other codes.
In absence of local codes, the installation must comply with the national
codes listed below and all authorities having jurisdiction. 
In the United States, follow all codes and standards for the following:
Safety
NFPA  54/ANSI  Z223.1  and  the  Installation  Standards,  Warm  Air
Heating and Air Conditioning Systems ANSI/NFPA 90B.
WARNING
!
FIRE HAZARD
Failure  to  follow  this  warning  could  result  in  personal  injury,  death
and/or property damage. 
Do  not  install  the  furnace  on  its  back  or  hang  furnace  with  control
compartment  facing  downward.  Safety  control  operation  will  be
adversely  affected.  Never  connect  return-air  ducts  to  the  back  of  the
furnace. (See Fig. 4). 
WARNING
!
FIRE, INJURY OR DEATH HAZARD
Failure  to  follow  this  warning  could  result  in  personal  injury,  death
and/or property damage. 
When the furnace  is installed in a  residential garage, the  burners and
ignition  sources  must  be  located  at  least  18  in.  (457  mm)  above  the
floor.  The  furnace  must  be  located  or  protected  to  avoid  damage  by
vehicles.  When  the  furnace  is  installed  in  a  public  garage,  airplane
hangar, or other building having a hazardous atmosphere, the furnace
must be installed in accordance with the NFPA 54/ANSI Z223.1 (See
Fig. 5).
  18-IN. (457.2 mm) 
MINIMUM TO BURNERS