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INSTALLATION MANUAL
DOWNFLOW/UPFLOW
ELECTRIC FURNACE
MODELS: EB
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
DOWNFLOW FURNACE INSTALLATION . . . . . . . . . . . . . . . . . . . . . 3
Furnace Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Upflow Closet Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Duct Connector Depth (7990 Series) . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Duct Connector Dimensions (7990 Series) . . . . . . . . . . . . . . . . . . . . . 4
Recommended Floor Cut-out (7990 Series) . . . . . . . . . . . . . . . . . . . . 4
Duct Connector Screw Attachment (7990 Series) . . . . . . . . . . . . . . . . 4
Duct Connector Tab Attachment (7990 Series) . . . . . . . . . . . . . . . . . . 4
Duct System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installation of Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Hanger Angle Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Duct Connector for Electric Furnaces . . . . . . . . . . . . . . . . . . . . . . . . . 3
Wiring Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SECTION I: GENERAL
The following list includes important facts and information regarding the
EB furnace and its packaging inclusions:
1.
Furnace is rated at 240 volts, 60 Hz, single phase.
2.
Heating and Cooling thermostat is packed with furnace.
3.
Filters are furnished with each model, and are the same for all
models - 16 x 20 x 1.
4.
Furnace size is the same for all models. See Figure 1.
5.
Four-wire thermostat operation for heating and cooling.
6.
Coil cavity built into furnace.
7.
All furnaces are equipped with an air conditioner blower and is A/C
or Heat Pump ready.
8.
Holding strap furnished on top rear of furnace.
9.
This furnace is designed for downflow application; however, it may
be converted to an upflow application. (See Page 6 for upflow con-
version instruction.)
10. This furnace must not be operated without the front panel installed.
NOTE: This furnace and its components listed on the A/C and Heat
Pump equipment sticker were listed in combination as a system by
Underwriter's Laboratories for the United States and Canada.
LIST OF SECTIONS
THERMOSTAT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
OPTIONAL AIR CONDITIONING ACCESSORIES . . . . . . . . . . . . . . .9
WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
LIST OF FIGURES
Blower Bracket and Duct Flange Attachment . . . . . . . . . . . . . . . . . . . .6
Control Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Field Wiring Shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Thermostat Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Thermostat Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
EB10C Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
EB12C Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
EB15C Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
EB17C Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
EB20C Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
EB23C Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
LIST OF TABLES
EB Series Blower Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Thermostat
Wiring
Entry
Field
Wiring
Entry
J
H
FIGURE 1: Furnace Dimensions
"
19-5/8
Sub-Base, if
Used, Adds 7/8"
More to Total
51-5/8"
Height and
3/8" to width.
N
M
L
K
OPTIONAL BOTTOM FIELD
WIRING ENTRY
E
A
F G
B
D
C
ISO 9001
Certified Quality
Management System
A
1-7/8"
2-5/8"
B
C
3-1/2"
D
1"
E
5-1/16"
5-1/2"
F
G
5-13/16"
H
1"
J
1-3/4"
K
7-13/16"
L
8-5/8"
9-7/16"
M
N
16-1/2"
266180-BIM-B-0209

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Summarization of Contents

SECTION II: SAFETY
SAFETY REQUIREMENTS
Outlines mandatory safety requirements for installation and operation.
INSPECTION
Details how to inspect the unit upon receipt for potential damage or loose parts.
CODES
Lists applicable codes and standards for furnace installation.
SECTION IV: DOWNFLOW FURNACE INSTALLATION
7900 SERIES DUCT CONNECTOR
Explains the use and selection of the 7900 series duct connector for furnace installation.
RETURN AIR
Specifies requirements for return air openings and clearances for furnace operation.
DUCT SYSTEM DESIGN
Discusses designing the duct system for optimal static pressure and heat distribution.
INSTALLATION OF SCREW ATTACHMENT DUCT CONNECTOR (7900 SERIES)
Step-by-step guide for attaching the screw-type duct connector.
INSTALLATION OF TAB ATTACHMENT DUCT CONNECTOR (7990 SERIES)
Step-by-step guide for attaching the tab-type duct connector.
INSTALLATION OF THE FURNACE
Instructions on how to physically install the furnace unit onto the duct connector.
FURNACE CONVERSION TO UPFLOW APPLICATION
Details the process and requirements for converting the furnace from downflow to upflow.
SECTION VII: WIRING DIAGRAMS
WIRING
Provides general guidelines and notes for furnace wiring connections.
SECTION V: THERMOSTAT INSTALLATION
THERMOSTAT WIRING SCHEMATIC FOR: BLEND AIR AND FURNACE
Shows the schematic for connecting the thermostat to the furnace and blend air control.
STANDARD OR DELUXE BLEND AIR CONTROL BOX
Explains the wiring connections for the blend air control box to the thermostat.
SECTION VI: OPTIONAL AIR CONDITIONING ACCESSORIES
HIGH PERFORMANCE BLOWER ACCESSORY PACKAGE
Details the high-performance blower accessory package for enhanced cooling.

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