-- 3 --
TABLE OF CONTENTS
SAFETY CONSIDERATIONS
3
. . . . . . . . . . . . . . . . . . . . . . . . . .
DIMENSIONAL DRAWING
4
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Clearances to Combustibles
5
. . . . . . . . . . . . . . . . . . . . . . . . . . .
CODES AND STANDARDS
7
. . . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS
8
. . .
INTRODUCTION
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
APPLICATIONS
9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General
9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Upflow Applications
9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Downflow Applications
11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horizontal Left (Supply--Air Discharge) Applications
12
. . . . .
Horizontal Right (Supply--Air Discharge) Applications
13
. . . .
LOCATION
16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General
16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Furnace Location Relative to Cooling Equipment
17
. . . . . . . . .
Hazardous Locations
17
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Furnace Location and Application
17
. . . . . . . . . . . . . . . . . . . . .
AIR FOR COMBUSTION AND VENTILATION
18
. . . . . . . . . .
INSTALLATION
21
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leveling Legs (If Desired)
21
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation in Upflow or Downflow Applications
21
. . . . . . . . .
Installation in Horizontal Applications
21
. . . . . . . . . . . . . . . . .
Air Ducts
23
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General
23
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ductwork Acoustical Treatment
24
. . . . . . . . . . . . . . . . . . . . .
Supply Air Connections
24
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Return Air Connections
25
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filter Arrangement
25
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bottom Closure Panel
26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Piping
26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Connections
27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
115--v Wiring
28
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24--v Wiring
28
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories
29
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal of Existing Furnaces from
Common Vent Systems
29
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combustion Air and Vent Pipe Systems
29
. . . . . . . . . . . . . . . . .
Condensate Drain
46
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General
46
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Application
46
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Condensate Drain Protection
46
. . . . . . . . . . . . . . . . . . . . . . . .
START-UP, ADJUSTMENT AND SAFETY CHECK
47
. . . . . . .
General
47
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prime Condensate Trap with Water
47
. . . . . . . . . . . . . . . . . . . .
Purge Gas Lines
47
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sequence of Operation
47
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heating Mode
48
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cooling Mode
48
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous Blower Mode
48
. . . . . . . . . . . . . . . . . . . . . . . . . .
Heat Pump Mode
48
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Component Test
48
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustments
49
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Set Gas Input Rate
49
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Set Temperature Rise
55
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjust Blower Off Delay (Heat Mode)
56
. . . . . . . . . . . . . . . .
Set Thermostat Heat Anticipator
56
. . . . . . . . . . . . . . . . . . . . .
Check Safety Controls
56
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check Primary Limit Control
56
. . . . . . . . . . . . . . . . . . . . . . .
Check Pressure Switch
56
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKLIST
57
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPFLOW
DOWNFLOW
HORIZONTAL
LEFT
AIRFLOW
AIRFLOW
AIRFLOW
AIRFLOW
HORIZONTAL
RIGHT
A93041
Fig. 1 -- Multipoise Orientations
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.
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
include in literature and attached to the unit. Consult local
building codes, the current editions of the National Fuel Gas
Code (NFGC) NFPA 54/ANSI Z223.1 and the National Electrical
Code (NEC) NFPA 70.
In Canada, refer to the current editions of the National Standards
of Canada CAN/CSA--B149.1 and .2 Natural Gas and Propane
Installation Codes, and Canadian Electrical Code CSA C22.1
Recognize safety information. This is the safety--alert symbol
.
When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury.
Understand the signal words
DANGER
,
WARNING
, and
CAUTION
. These words are used with the safety--alert symbol.
DANGER
identifies the most serious hazards which
will
result in
severe personal injury or death.
WARNING
signifies hazards
which
could
result in personal injury or death.
CAUTION
is
used to identify unsafe practices which
may
result in minor
personal injury or product and property damage.
NOTE
is used
to highlight suggestions which
will
result in enhanced
installation, reliability, or operation.
UNIT RELIABILITY HAZARD
Improper installation or misapplication of furnace may
require excessive servicing or cause premature component
failure.
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.
CAUTION
!
58MCB