NOTE:
Read the entire instruction manual before starting the
installation.
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Index
Page
SAFETY CONSIDERATIONS .....................................................1
Clearances From Combustible Materials .................................1
Dimensional Drawing ...............................................................2
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS
PROCEDURE........................................................................2-3
INTRODUCTION ..........................................................................3
LOCATION....................................................................................3
General ......................................................................................3
Location Relative to Cooling Equipment ................................3
Hazardous Locations.................................................................3
AIR FOR COMBUSTION AND VENTILATION ...................3-5
Unconfined Space .....................................................................4
Confined Space......................................................................4-5
FILTER ARRANGEMENT .......................................................5-6
LEVELING LEGS (IF REQUIRED).........................................5-6
GAS PIPING...............................................................................6-7
ELECTRICAL CONNECTIONS ..................................................7
115-v Wiring.............................................................................7
24-v Wiring...............................................................................7
Accessories................................................................................7
VENTING ......................................................................................7
START-UP, ADJUSTMENT, AND SAFETY CHECK .........7-14
General...................................................................................7-8
Sequence Of Operation .......................................................8-11
Heating Mode............................................................................9
Cooling Mode ...........................................................................9
Continuous Blower Mode.........................................................9
Heat Pump Mode ....................................................................11
Start-Up Procedures ................................................................11
Adjustments .......................................................................11-13
Set Gas Input Rate ............................................................11-12
Set Temperature Rise..............................................................13
Set Thermostat Heat Anticipator ......................................13-14
Check Safety Controls .................................................................14
Checklist .......................................................................................14
SAFETY CONSIDERATIONS
Installing and servicing heating equipment can be hazardous due to
gas and electrical components. Only trained and qualified person-
nel 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 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 National Fuel Gas Code (NFGC) NFPA No.
54-1992/ANSI Z223.1-1992. In Canada, refer to the current
edition of the National Standard of Canada CAN/CGA-B149.1-
and .2-M95 Natural Gas and Propane Installation Codes (NSC-
NGPIC). Wear safety glasses and work gloves. Have fire extin-
guisher available during start-up and adjustment procedures and
service calls.
Recognize safety information. 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.
Understand the signal words DANGER, WARNING, and CAU-
TION. These words are used with the safety-alert symbol. DAN-
GER identifies the most serious hazards which will result in severe
personal injury or death. WARNING signifies a hazard which
could result in personal injury or death. CAUTION is used to
identify unsafe practices which would result in minor personal
injury or product and property damage.
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 residen-
tial construction practices. We require these instructions as a
minimum for a safe installation.
ama
®
CANADIAN GAS ASSOCIATION
A PP R O VED
R
TABLE 1—MINIMUM CLEARANCES FROM
COMBUSTIBLE MATERIALS (IN.)
UNIT SIZE
045 AND 065 091-155
Sides
Single-Wall Vent
1
0
Type B-1 Double-Wall Vent
0
0
Back
0
0
Plenum Top
1
1
Vent
Single-Wall Vent
6
6
Type B-1 Double-Wall Vent
1
1
Front
Single-Wall Vent
6
6
Type B-1 Double-Wall Vent
3
3
Service
30
30
NOTES:
1. Provide 30-in. front clearance for servicing. An open door in front of the unit
can meet this requirement.
2. A minimum clearance of 3 in. must be provided in front of the unit for
combustion air and proper operation.
installation, start-up,
and operating instructions
INDUCED-COMBUSTION
GAS-FIRED FURNACES
Cancels:
II 480B-45-3
II 480B-45-4
1-96
480BAV
Series F
—1—
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