PG96MSA: 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.
4
SAFETY CONSIDERATIONS 
Improper  installation,  adjustment,  alteration,  service,  maintenance,  or
use can cause explosion, fire, electrical shock, or other conditions which
may  cause  death,  personal  injury,  or  property  damage.  Consult  a
qualified  installer,  service  agency,  or  your  distributor  or  branch  for
information  or  assistance.  The  qualified  installer  or  agency  must  use
factory-authorized  kits  or  accessories  when  modifying  this  product.
Refer to the individual instructions packaged with the kits or accessories
when installing.
Installing and servicing heating equipment can be hazardous due to gas
and electrical components. Only trained and qualified personnel should
install,  repair,  or  service  heating  equipment.  Untrained  personnel  can
perform basic maintenance functions such as cleaning and replacing air
filters.  All  other  operations  must  be  performed  by  trained  service
personnel. When working on heating equipment, observe precautions in
literature, on tags, and on labels attached to or shipped with furnace and
other safety precautions that may apply. 
These instructions cover minimum requirements and conform to existing
national standards and safety codes. In some instances, these instructions
exceed certain local codes and ordinances, especially those that may not
have  kept  up  with  changing  residential  construction  practices.  We
require these instructions as a minimum for a safe installation. 
Follow  all  safety  codes.  Wear  safety  glasses,  protective  clothing,  and
work gloves. Have a fire extinguisher available. Read these instructions
thoroughly and follow all warnings or cautions included in literature and
attached to the unit. 
This  is  the  safety-alert  symbol  . When  you  see  this  symbol  on  the
furnace  and  in  instructions  or  manuals,  be  alert  to  the  potential  for
personal injury. 
WARNING
!
FIRE, INJURY, OR DEATH HAZARD
Failure to follow this warning could result in property damage, personal
injury, or death.
This furnace was manufactured to operate with natural gas. When fuel
supply is Liquid Propane (LP), this furnace must
 be converted with a
factory  approved  LP  conversion  kit.  See  furnace  rating  plate  for
approved conversion kit.
WARNING
!
FIRE, EXPLOSION, ELECTRICAL SHOCK, AND 
CARBON MONOXIDE POISONING HAZARD
Failure  to  follow  this  warning  could  result  in  dangerous  operation,
personal injury, death, or property damage. 
Improper  installation,  adjustment,  alteration,  service,  maintenance,  or
use  can  cause  carbon  monoxide  poisoning,  explosion,  fire,  electrical
shock, or other conditions which may cause personal injury or property
damage. Consult a qualified service agency, local gas supplier, or your
distributor  or  branch  for  information  or  assistance.  The  qualified
service  agency  must  use  only  factory-authorized  accessories  and
replacement parts when installing and servicing this product.
WARNING
!
FIRE, EXPLOSION, ELECTRICAL SHOCK, AND 
CARBON MONOXIDE POISONING HAZARD
Failure  to  follow  this  warning  could  result  in  dangerous  operation,
personal injury, death, or property damage. 
Furnaces shall NOT be twinned (i.e. tandem or staged operation) unless
approved in factory technical specifications  literature for  the furnace.
 A  factory  authorized,  field-supplied  Twinning  Kit  MUST  be  used. 
Consult  furnace  pre-sale  literature  for  specific  models  approved  for
twinning  and  the  correct  twinning  kit.   Twinned  furnaces  must  be
installed on both a common supply AND a common return duct system
as  shown  in  the  Twinning  Kit  Installation  Instructions.   Only  two
furnaces can be twinned on a common supply and return duct system
using a factory authorized twinning kit.
WARNING
!
FIRE HAZARD
Failure to follow this warning could result in personal injury, death, or
property damage.
Solvents, cements and primers are combustible. Keep away from heat,
sparks  and  open  flame.  Use  only  in  well-ventilated  areas.  Avoid
breathing in vapor or allowing contact with skin or eyes.
CAUTION
!
FURNACE RELIABILITY HAZARD
Failure to follow this caution may result in unit component damage.
Application  of  this  furnace  should  be  indoors  with  special  attention
given to vent sizing and material, gas input rate, air temperature rise,
unit leveling, and unit sizing. 
WARNING
!
FIRE, INJURY, OR DEATH HAZARD
Failure to follow this warning could result in property damage, personal
injury, or death.
Do not bypass any of the safety controls in the furnace, including but
not limited to the main limit switch, rollout or burner thermal switch,
and pressure switch/pressure transducer.
WARNING
!
PERSONAL INJURY AND PROPERTY DAMAGE 
HAZARD
Failure to follow this warning could result in property damage, personal
injury, or death.
For  continued  performance,  reliability, and  safety,  the  only  approved
accessories and replacement parts are those specified by the equipment
manufacturer.  The  use  of  non-manufacturer  approved  parts  and
accessories could invalidate the equipment limited warranty and result
in  fire  risk,  equipment  malfunction,  and  failure.  Please  review
manufacturer's  instructions  and  replacement  part  catalogs  available
from your equipment supplier
CAUTION
!
CUT HAZARD
Failure to follow this caution may result in personal injury. 
Sheet  metal  parts may have  sharp  edges or  burrs.  Use  care and wear
appropriate  protective  clothing,  safety  glasses  and  gloves  when
handling parts, and servicing furnaces.