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266180-BIM-B-0209

10

Johnson Controls Unitary Products

SECTION VII: WIRING DIAGRAMS

 FIGURE 16:  

EB10C Wiring Diagram

3A

LINE

LOAD

2

4

5

6

1

3

*

NOTE:

IF ANY OF THE ORIGINAL WIRE SUPPLIED
WITH THIS UNIT MUST BE REPLACED. IT
MUST BE REPLACED WITH TYPE 105°C
THERMOPLASTIC OR ITS EQUIVALENT.
FACTORY WIRING SHOWN SOLID. FIELD
WIRING SHOWN BROKEN.

MODEL: EB10C

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

ELEMENTS

LIMIT
SWITCHES

GND.

LUG

240 VAC.

60 Hz

1 PHASE

SINGLE BRANCH
CIRCUIT SERVICE

R

R

H2

H1

M3

M4

M1

M2

60

AMP

YEL

YEL

ORG

ORG

BLU

YEL

YEL

YEL

GRN

ORG

YEL

BLK

BLK

BLK

RED

RED

WHT

GRN

WHT

RED

BLK

G
W

RH

Y

BRN

ORG

CAPACITOR

BLU-MED.

HIGH

SP

.

YEL-MED.

LOW

SP

.

BLK-COOLING

SP

.

RED-HEA

TING

SP

.

ORG-COMMON.

D.O.E. OUTPUT CAPACITY - BTU

34,000

MAX. MOTOR-FLA

4.0

SINGLE BRANCH
CIRCUIT SERVICE

2 LEADS + 1 GROUND

NOMINAL CIRCUIT LOAD-AMPS

44.0

WIRE SIZE (75° C) COPPER

WIRE SIZE (60° C) COPPER

#6

#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

GND.

LUG

240 VAC.

60 Hz

1 PHASE

SINGLE BRANCH
CIRCUIT SERVICE

R

R

H2

H1

M3

M4

M1

M2

60

AMP

YEL

BLK

BLU

YEL

RED

YEL

ORG

YEL

BLK

BLK

BLK

RED

RED

WHT

GRN

WHT

RED

BLK

G

W

RH

Y

BRN

ORG

CAPACITOR

BLU-MED.

HIGH

SP

.

YEL-MED.

LOW

SP

.

BLK-COOLING

SP

.

RED-HEA

TING

SP

.

ORG-COMMON.

RED

D.O.E. OUTPUT CAPACITY - BTU

39,000

MAX. MOTOR-FLA

4.0

SINGLE BRANCH
CIRCUIT SERVICE

2 LEADS + 1 GROUND

NOMINAL CIRCUIT LOAD-AMPS

50.7

WIRE SIZE (75° C) COPPER

WIRE SIZE (60° C) COPPER

#6

#4

MAX. FUSE SIZE (OR CB) - AMPS

70

240 VAC - 60 Hz - 1 PHASE

GRN

60

AMP

CIRCUIT #2
BREAKER

JUMPER

BARS

NOTE:

IF ANY OF THE ORIGINAL WIRE SUPPLIED
WITH THIS UNIT MUST BE REPLACED. IT
MUST BE REPLACED WITH TYPE 105°C
THERMOPLASTIC OR ITS EQUIVALENT.
FACTORY WIRING SHOWN SOLID. FIELD
WIRING SHOWN BROKEN.

WIRING MUST CONFORM TO LOCAL CODES
APPROVED FOR CU CONDUCTORS ONLY.

ORG

L

L

ELEMENTS

LIMIT
SWITCHES

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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