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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 of Contents for EB10C

Page 1: ... 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...

Page 2: ...ing on heating cooling equipment observe precautions in the manuals and on the labels attached to the unit and other safety precautions that may apply 9 These instructions cover minimum requirements and conform to existing national standards and safety codes In some instances these instructions exceed certain local codes and ordinances especially those who have not kept up with changing residentia...

Page 3: ...circulating air from all rooms and living spaces except the bathroom s to the circulating air supply inlet of the furnace Failure to comply may cause improper heat ing and may cause the furnace to cycle on the limit DUCT SYSTEM DESIGN Electric furnace is designed to operate at a given static pressure In order to assure proper air flow through the furnace the distribution system must be designed so...

Page 4: ...Stan dard 3280 715 U L Standard 181A INSTALLATION OF TAB ATTACHMENT DUCT CONNECTOR 7990 SERIES 1 Make floor cut out as shown in Figure 5 2 Determine the depth of the floor cavity from the surface of the floor to the top of the supply air duct and select the appropriate duct connector from the chart 3 Place locating bracket supplied with the duct connector to the rear of the floor area for the furn...

Page 5: ...r using screw through the strap at the top of the furnace Strap may be moved to any of the holes located along the top back of the furnace Installer may provide an equivalent method such as screws through the casing side FURNACE CONVERSION TO UPFLOW APPLICATION Upflow furnace conversion is easily accomplished by following the steps listed below Provide adequate clearance for servicing 1 Before Con...

Page 6: ...the power to the unit The circuit breakers in the furnace are not meant to protect the branch circuit wiring between the furnace and the home s breaker panel General wire and breaker sizes are shown in Table 2 If sheathed cable is used refer to National Electrical Code Canadian Electrical Code and local codes for addi tional requirements concerning supply circuit wiring Electrical Data can be foun...

Page 7: ...3C EB20C EB17C EB15C EB12C EB10C D O E Output 240 VAC 60 Hz 1 Phase BTU 77 000 67 000 56 000 51 000 39 000 34 000 kW 22 6 19 6 16 4 15 0 11 4 10 0 OUTPUT CAPACITY 230 VAC 60 Hz 1 Phase BTU 71 000 61 000 52 000 47 000 36 000 31 000 kW 20 8 17 9 15 2 13 8 10 6 9 1 220 VAC 60 Hz 1 Phase BTU 65 000 57 000 48 000 43 000 33 000 29 000 kW 19 1 16 7 14 1 12 6 9 7 8 5 Element Capacity 240 VAC kW 21 6 19 2 ...

Page 8: ...ctric box door Furnace is equipped with a protective shield over field wiring con nection When field wiring is completed shield must be replaced to prevent hazard of electrical shock when using furnace disconnect See Figure 13 FIGURE 13 Field Wiring Shield Circuit Breakers Electric Panel Field Wiring Protective Shield BLOWER When using separate thermostats a thermostat interlock system must be pro...

Page 9: ...the blower inside the furnace has to be replaced with an accessory blower package 3500 7901 This accessory blower package would deliver air conditioning up to 5 tons and heat pump up to 4 tons Accessory pack age 3500 7901 includes blower insulation coil shelf trap clamps etc Please refer to the installation instructions packed with the acces sory package for more information Failure to install thi...

Page 10: ... 6 MAX FUSE SIZE OR CB AMPS 60 240 VAC 60 Hz 1 PHASE WIRING MUST CONFORM TO LOCAL CODES APPROVED FOR CU CONDUCTORS ONLY L L FIGURE 17 EB12C Wiring Diagram 3A LINE LOAD 2 4 5 6 1 3 MODEL EB12C 4 SPEED BLOWER EB SERIES FURNACES BLEND AIR CONTROL BOX HEAT COOL T STAT COND UNIT CONTACTOR MOTOR TRANSFORMER FUSE BLOWER RELAY 2 SPADE INSUL TERMINALS USED WHEN CHANGING SPEEDS SEQUENCER CIRCUIT 1 BREAKER G...

Page 11: ...z 1 PHASE 44 20 1 55 25 2 6 10 6 10 60 30 GND LUG REQUIRES JUMPER BARS P N 3500 378 SINGLE BRANCH CIRCUIT SERVICE GRN L L L FIGURE 19 EB17C Wiring Diagram 3A LINE LOAD 2 4 5 6 1 3 MODEL EB17C 4 SPEED BLOWER EB SERIES FURNACES BLEND AIR CONTROL BOX HEAT COOL T STAT COND UNIT CONTACTOR MOTOR TRANSFORMER FUSE BLOWER RELAY 2 SPADE INSUL TERMINALS USED WHEN CHANGING SPEEDS SEQUENCER CIRCUIT 1 BREAKER E...

Page 12: ...E OR CB AMPS 110 240 VAC 60 Hz 1 PHASE 44 0 40 55 50 6 8 6 6 60 50 SINGLE BRANCH CIRCUIT SERVICE RED RED M5 M6 15 M1 M2 RED R BLK 60 AMP 60 AMP 60 AMP GRN WHT ORG ORG L L L L REQUIRES JUMPER BARS P N 3500 378 FIGURE 21 EB23C Wiring Diagram WIRING MUST CONFORM TO LOCAL CODES APPROVED FOR CU CONDUCTORS ONLY NOTE IF ANY OF THE ORIGINAL WIRE SUPPLIED WITH THIS UNIT MUST BE REPLACED IT MUST BE REPLACED...

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