Coleman EB20C - User Manual

266180-BIM-B-0209
DOWNFLOW/UPFLOW
ELECTRIC FURNACE
MODELS: EB
INSTALLATION MANUAL
ISO 9001
Certified Quality
Management System
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.
FIGURE 1: Furnace Dimensions
51-5/8”
19-5/8
Sub-Base, if
Used, Adds 7/8”
More to Total
Height and
3/8” to width.
Thermostat
Wiring
Entry
Field
Wiring
Entry
OPTIONAL BOTTOM FIELD
WIRING ENTRY
A
B
C
D
E
F
H
G
J
K
L
M
N
1-7/8”
2-5/8”
3-1/2”
1”
5-1/16”
5-1/2”
1”
5-13/16”
1-3/4”
7-13/16”
8-5/8”
9-7/16”
16-1/2”
J
H
C
B
A
D
E
F
G
N
M
L
K
”
LIST OF SECTIONS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
DOWNFLOW FURNACE INSTALLATION . . . . . . . . . . . . . . . . . . . . . 3
THERMOSTAT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
OPTIONAL AIR CONDITIONING ACCESSORIES . . . . . . . . . . . . . . .9
WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
LIST OF FIGURES
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
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
Duct Connector for Electric Furnaces . . . . . . . . . . . . . . . . . . . . . . . . . 3
Wiring Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
EB Series Blower Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Summary

SECTION II: SAFETY

SAFETY REQUIREMENTS

General safety rules and code compliance for installation.

INSPECTION

Procedures for checking the unit for damage and completeness before installation.

CODES

List of applicable codes and standards for furnace installation.

SECTION III: UNIT INSTALLATION

LOCATION

Guidelines for selecting an appropriate installation location for servicing and airflow.

FURNACE CLEARANCE

Specifies required clearances around the furnace for safety and maintenance.

RETURN AIR

Requirements for return air openings and ductwork for proper furnace operation.

DUCT SYSTEM DESIGN

Principles for designing the duct system to ensure proper airflow and static pressure.

SECTION IV: DOWNFLOW FURNACE INSTALLATION

7900 SERIES DUCT CONNECTOR

Information on selecting and using duct connectors for the 7900 series.

INSTALLATION OF SCREW ATTACHMENT DUCT CONNECTOR (7990 SERIES)

Step-by-step guide for installing the screw attachment duct connector.

INSTALLATION OF TAB ATTACHMENT DUCT CONNECTOR (7990 SERIES)

Step-by-step guide for installing the tab attachment duct connector.

INSTALLATION OF THE FURNACE

Procedures for physically placing and securing the furnace unit.

FURNACE CONVERSION TO UPFLOW APPLICATION

Instructions for converting the downflow furnace to an upflow configuration.

SECTION V: THERMOSTAT INSTALLATION

THERMOSTAT INSTALLATION

Guidance on thermostat placement, wiring, and settings for optimal performance.

SECTION VI: OPTIONAL AIR CONDITIONING ACCESSORIES

HIGH PERFORMANCE BLOWER ACCESSORY PACKAGE

Information on installing an optional blower for enhanced cooling performance.

SECTION VII: WIRING DIAGRAMS

Coleman EB20C Specifications

General

Model	EB20C
Efficiency Rating	80% AFUE
Ignition Type	Direct Spark Ignition
Fuel Type	Propane
Vent Size	4 inches