Installation, Start-Up, and Operating Instructions
NOTE: Read the entire instruction manual before starting the
installation.
This symbol → indicates a change since the last issue.
Index
PROCEDURE........................................................................2-3
INTRODUCTION ..........................................................................3
LOCATION....................................................................................3
General ......................................................................................3
Unconfined Space .....................................................................4
Confined Space......................................................................4-5
Install Furnace...........................................................................6
GAS PIPING...............................................................................7-8
115-v Wiring.............................................................................8
24-v Wiring...............................................................................8
Accessories................................................................................8
VENTING ......................................................................................8
General.................................................................................9-10
Heating Mode..........................................................................10
Cooling Mode .........................................................................10
Heat Pump Mode ....................................................................10
Adjustments .......................................................................12-14
Checklist..................................................................................15
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
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 4
PC 101
Catalog No. 565-863
Tab 6a 8a
Sizes 050-135, Series 151
Page
Printed in U.S.A.
Form 58RA-10SI
Downflow/Horizontal
Induced-Combustion Furnaces
®
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.
Table 1-Clearances From Combustible
Materials (In.)
UNIT SIZE
DOWNFLOW (In Alcove or Closet)
Sides
Single-Wall Vent
Type B-1 Double-Wall Vent
Back
Top
Front
Single-Wall Vent
Type B-1 Double-Wall Vent
Vent
Single-Wall Vent
Type B-1 Double-Wall Vent
HORIZONTAL (Attic, Alcove, or Crawlspace)
Sides *
Back
Top
Single-Wall Vent
Type B-1 Double-Wall Vent
Front‡
Single-Wall Vent
Type B-1 Double-Wall Vent
Vent
Single-Wall Vent
Type B-1 Double-Wall Vent
HORIZONTAL (In Closet)
Sides *
Back
Top
Single-Wall Vent
Type B-1 Double-Wall Vent
Front
Single-Wall Vent
Type B-1 Double-Wall Vent
Vent
Single-Wall Vent
Type B-1 Double-Wall Vent
* Indicates supply or return sides when furnace is in the horizontal position.
† Clearance shown is for outlet end. The inlet end must maintain 6-in.
minimum clearance from the vent to combustible materials when using
single-wall vent.
‡ Minimum 18-in. front clearance required for alcove.
NOTES:
1. Provide 30-in. front clearance for servicing. An open door in front of the
furnace can meet this requirement.
2. A minimum clearance of 3 in. must be provided in front of the furnace for
combustion air and proper operation.
3. Line contact is permitted as shown in Fig. 7.
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
Pg 1
58RAV
ama
A PP R O VED
R
050 AND 070
096-135
1
0
0
0
0
0
1
1
6†
6†
3†
3†
6
6
1
1
1
0
0
0
1
1
1
1
6†
6†
3†
3†
6
6
1
1
1
1
0
0
2
2
2
2
6
6
3
3
6
6
1
1
8-95
Replaces: 58RA-9SI