58EFB
Horizontal Induced-Combustion
Gas Furnace
Installation, Start-up, and Operating Instructions
Sizes 050—125, Series 101
NOTE:
Read the entire instruction manual before starting the
installation.
INDEX
Page
SAFETY CONSIDERATIONS ................................................1-2
Clearances From Combustible Materials .................................1
INTRODUCTION.......................................................................2-3
Dimensional Drawing ...............................................................2
LOCATION ................................................................................3-4
General ......................................................................................3
Furnace Location Relative to Cooling Equipment ..................3
Hazardous Locations .............................................................3-4
AIR FOR COMBUSTION AND VENTILATION ...................4-5
General ......................................................................................4
Unconfined Space .....................................................................4
Confined Space......................................................................4-5
Contaminated Combustion Air.................................................5
INSTALLATION........................................................................5-9
Duct Work Recommendations ..............................................5-6
Horizontal Attic Installation .....................................................6
Horizontal Crawlspace Installation ..........................................6
Filter Arrangement ................................................................6-7
Gas Piping.................................................................................7
Reversing Procedure..............................................................8-9
ELECTRICAL CONNECTIONS.............................................9-11
115-v Wiring........................................................................9-10
24-v Wiring.............................................................................10
Accessories..............................................................................10
Wiring Diagram ......................................................................11
VENTING ...............................................................................12-13
General Venting Requirements ..............................................12
Pre-Installation Vent System Inspection ................................12
Removal of Existing Furnace from Common
Venting System..................................................................12
Metal Vent Installations..........................................................13
Masonry Chimney Installations..............................................13
Multistory Installations ...........................................................13
Sidewall Venting Installations................................................13
SEQUENCE OF OPERATION...................................................13
Heating Mode..........................................................................13
Cooling Mode .........................................................................13
START-UP, ADJUSTMENT, AND SAFETY CHECK .......13-18
General ....................................................................................13
Remove Shipping Bracket ......................................................13
Purge Gas Lines ................................................................13-14
Operational Checkout .............................................................14
Adjustments .......................................................................14-17
Adjust Pilot Flame ..................................................................14
Set Gas Input Rate ............................................................14-17
Set Temperature Rise..............................................................17
Set Blower Off Delay.............................................................17
Set Thermostat Heat Anticipator............................................17
Check Safety Controls ............................................................18
CHECKLIST ................................................................................18
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 and the Installation Standards, Warm
Air Heating and Air Conditioning Systems (NFPA 90B)
ANSI/NFPA 90B. 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 (NSCNGPIC). Wear
safety glasses and work gloves. Have fire extinguisher 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
®
ama
CANADIAN GAS ASSOCIATION
A PP R O VED
R
Table 1—Attic, Closet*, or Alcove Clearances
From Combustible Materials (In.)
UNIT SIZE
050, 075, 100, & 125
Sides
6
Back
6
Top of Plenum
2
Vent Connector
6
Front Casing
6†
Front Service
30
* For closet installations, refer to Air for Combustion and Ventilation section.
† Measured from end of inducer motor.
Failure to comply with all of the above clearances will create
a fire hazard.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1
4
Tab
6a 8a
PC 101
Catalog No. 565-883
Printed in U.S.A.
Form 58EFB-1SI
Pg 1
5-96
Replaces: 58EFA-3SI
