Fire or Explosion hazard.
This furnace is not designed for use in mobile
homes, trailers or recreational vehicles.
Such use could result in death, bodily injury
and/or property damage.
Manufactured by:
International Comfort Products Corporation (USA)
Lewisburg, TN USA 37091
!
Electric Shock Hazard
Turn Off All Power
Before Servicing.
Failure to do so can result
in death, personal injury
and/or property damage.
!
Printed in U.S.A.
LP1
2/17/2003
441 01 5001 00
HUH5
SAFETY REQUIREMENTS
Recognize safety information. This is the safety--alert symbol
!
. When you see this symbol on the furnace and in instructions manuals be
alert to the potential for personal injury.
Understand the signal words
DANGER, WARNING,
or
CAUTION.
These words are used with the safety--alert symbol.
DANGER
identifies the
most serious hazards, those that
will
result in severe personal injury or death.
WARNING
signifies a hazard that
could
result in personal injury
or death.
CAUTION
is used to identify unsafe practices that
could
result in minor personal injury or product and property damage.
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 service 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 the literature, on tags, and on labels
attached to or shipped with the unit and other safety precautions that may apply.
Follow all safety codes. In the United States, follow all safety codes including the current edition National Fuel Gas Code (NFGC) NFPA No.
54/ANSIZ223.1. In Canada, refer to the current edition of the National Standard Canada CAN/CGA--B149.1-- and .2--M91 Natural Gas and
Propane Installation Codes (NSCNGPIC). Wear safety glasses and work gloves. Have fire extinguisher available during start--up and adjust-
ment procedures and service calls.
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.
Table of Contents
1. Safe Installation Requirements
3
. . . . . . . . . . . . . . .
2. Installation
4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. Combustion & Ventilation Air
7
. . . . . . . . . . . . . . . .
4. Gas Vent Installation
9
. . . . . . . . . . . . . . . . . . . . . . .
5. Horizontal Venting
10
. . . . . . . . . . . . . . . . . . . . . . . . .
6. Gas Supply and Piping
10
. . . . . . . . . . . . . . . . . . . . .
7. Electrical Wiring
10
. . . . . . . . . . . . . . . . . . . . . . . . . .
8. Ductwork and Filter (Upflow/Horizontal)
13
. . . . . . .
9. Checks and Adjustments
14
. . . . . . . . . . . . . . . . . . .
10. Furnace Maintenance
15
. . . . . . . . . . . . . . . . . . . . .
11. Sequence of Operation & Diagnostics
17
. . . . . . . . .
