Johnson controls unitary products Eb10f User manual

Johnson Controls Unitary Products 5165699-BIM-C-0516

ELECTRIC FURNACE

MODELS: EB**F

Downflow/Upflow

INSTALLATION MANUAL

LIST OF SECTIONS

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

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) . . . . . . . . . . . . . . . . . . . . . . . . . .4

Duct Connector Dimensions (7990 Series) . . . . . . . . . . . . . . . . . . . . .4

Recommended Floor Cut-out (7990 Series) . . . . . . . . . . . . . . . . . . . .4

Duct Connector Screw Attachment (7990 Series) . . . . . . . . . . . . . . . .5

Duct Connector Tab Attachment (7990 Series) . . . . . . . . . . . . . . . . . .5

Duct System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Installation of Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Hanger Angle Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Blower Bracket and Duct Flange Attachment . . . . . . . . . . . . . . . . . . .6

Control Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Field Wiring Shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Thermostat Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Thermostat Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

EB10F Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

EB12F Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

EB15F Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

EB17F Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

EB20F Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

EB23F Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

LIST OF TABLES

Duct Connector for Electric Furnaces . . . . . . . . . . . . . . . . . . . . . . . . .4

Wiring Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 EB Series Blower Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

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. Filters are furnished with each model, and are the same for all

models - 16 x 20 x 1 in top and 20 x 20 x 1 in the louvered door.

3. Furnace size is the same for all models. See Figure 1.

4. Four-wire thermostat operation for heating and cooling.

5. Coil cavity built into furnace (coil shelf accessory required).

6. All furnaces are equipped with an air conditioner blower and isA/C

or Heat Pump ready (coil shelf accessory required).

7. Holding strap furnished on top rear of furnace.

8. This furnace is designed for downflow application; however, it may

be converted to an upflow application. (See Page 6 for upflow con-

version instruction.)

9. This furnace must not be operated without the front panel

installed. NOTICE

This furnace and its components listed on the A/C and Heat Pump

equipment sticker are listed in combination as a system by Under-

writer's Laboratories for the United States and Canada. FIGURE 1: Furnace Dimensions

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5165699-BIM-C-0516

2 Johnson Controls Unitary Products

SECTION II: SAFETY

This is a safety alert symbol. When you see this symbol on

labels or in manuals, be alert to the potential for personal

injury.

Understand and pay particular attention to the signal words DANGER,

WARNING, or CAUTION.

DANGER indicates an imminently hazardous situation, which, if not

avoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation, which, if not

avoided, could result in death or serious injury.

CAUTION indicates a potentially hazardous situation, which, if not

avoided may result in minor or moderate injury. It is also used to

alert against unsafe practices and hazards involving only property dam-

age.

1. Install this electric furnace only in a location and position as speci-

fied in SECTION III of these instructions.

2. Always install the electric furnace to operate within the electric fur-

nace’s intended maximum outlet air temperature. Only connect the

air handler to a duct system which has an external static pressure

within the allowable range, as specified on the EB rating plate.

3. When an electric furnace is installed so that supply ducts carry air

circulated by the air handler to areas outside the space containing

the air handler, the return air shall also be handled by duct(s)

sealed to the air handler casing and terminating outside the space

containing the air handler.

4. The electric furnace is not to be used for temporary heating of

buildings or structures under construction.

5. The size of the unit should be based on an acceptable heat loss or

gain calculation for the structure. ACCA, Manual J or other

approved methods may be used.

SAFETY REQUIREMENTS

1. This electric furnace should be installed in accordance with all

national and local building/safety codes and requirements, local

plumbing or wastewater codes, and other applicable codes.

2. Refer to the unit rating plate for the EB model number, and then

see the dimensions page of this instruction for supply air plenum

dimensions in Figure 3. The plenum must be installed according to

the instructions.

3. Provide clearances from combustible materials as listed under

Clearances to Combustibles.

4. Provide clearances for servicing ensuring that service access is

allowed for electric furnace elements and blower.

5. Failure to carefully read and follow all instructions in this manual

can result in electric furnace malfunction, death, personal injury

and/or property damage.

6. Check the rating plate and power supply to be sure that the electri-

cal characteristics match.

7. Electric furnace shall be installed so the electrical components are

protected from water.

8. Installing and servicing heating/cooling equipment can be hazard-

ous due to the electrical components. Only trained and qualified

personnel should install, repair, or service heating/cooling equip-

ment. Untrained service personnel can perform basic maintenance

functions such as cleaning and replacing the air filters. When

working 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 residential

and non-HUD modular home construction practices. These

instructions are required as a minimum for a safe installation.

INSPECTION

As soon as a unit is received, it should be inspected for possible dam-

age during transit. If damage is evident, the extent of the damage

should be noted on the carrier’s freight bill. A separate request for

inspection by the carrier’s agent should be made in writing.Also, before

installation the unit should be checked for screws or bolts, which may

have loosened in transit. There are no shipping or spacer brackets

which need to be removed.

Also check to be sure all accessories such as heater kits, suspension

kits, and coils are available. Installation of these accessories or field

conversion of the unit should be accomplished before setting the unit in

place or connecting any wiring, electric heat, ducts or piping.

CODES

The electric furnace must be installed in accordance with the following

codes:

• Standard for the Installation of Air Conditioning and Ventilating

Systems (NFPA 90A)

• Standard for the Installation of Warm Air Heating and Air Condi-

tioning Systems (NFPA 90B)

• National Electric Code (NFPA 70)

• Canadian Electrical Code, Part I (CSA C22.1)

• All local codes (state/county/township).

WARNING

Improper installation may create a condition where the operation of

the product could cause personal injury or property damage.

Improper installation, adjustment, alteration, service or mainte-

nance can cause injury or property damage. Refer to this manual

for assistance or for additional information, consult a qualified con-

tractor, installer or service agency.

CAUTION

This product must be installed in strict compliance with the installa-

tion instructions and any applicable local, state, and national codes

including, but not limited to building, electrical, and mechanical

codes.

WARNING

FIRE OR ELECTRICAL HAZARD

Failure to follow the safety warnings exactly could result in serious

injury, death or property damage.

A fire or electrical hazard may result causing property damage, per-

sonal injury or loss of life.

NOTICE

All applicable codes take precedence over any recommendation

made in these instructions.

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Johnson Controls Unitary Products 3

SECTION III: UNIT INSTALLATION

LOCATION

Access for servicing is an important factor in the location of any furnace.

Provide a minimum of 24” (61 cm) in front of the furnace for access to

the heating elements and controls. This access may be provided by a

closet door or by locating the furnace 24” (61 cm) from a facing wall or

partition.

FURNACE CLEARANCE

Electric furnace is approved for zero (0) in. clearance to combustible

material on all or any part of the furnace exterior and the inlet or outlet

duct work. For furnaces installed in upflow application, there must be

1” (2.54 cm) clearance from the outlet duct work for a distance of 3 feet

(91.4 cm) from the supply air opening.

RETURN AIR

In order for the furnace to work properly, a closet or alcove must have a

certain total free area opening for return air.

For Heating Only Furnace

Minimum 200 sq. in (1290 sq. cm) free area opening. Use any return

Grille with minimum 200 sq. in free opening.

For up to 4 Ton AC and 3.5 Ton HP Applications (Standard

Blower)

Minimum 250 sq. in (1613 sq. cm) free area opening. The standard

blower assembly supplied with the furnace is capable of handling up 4

Ton AC and 3.5 Ton HP applications. Use any return grille with mini-

mum 250 sq. in (1613 sq. cm) free area opening.

For 5 Ton AC and 4 Ton HP Applications (Accessory

Blower)

Minimum 350 sq. in (2129 sq. cm) free area opening. Use 5 Ton AC/4

Ton HP blower accessory 3500-7901/A. Use accessory louvered door

3501-9311 or any return grille with a minimum 350 sq. in (2129 sq. cm)

free area opening.

The return air opening can be located in a closet front door or a sidewall

above the furnace casing, or in a louvered door on the furnace. If open-

ing for the return air is located in the floor, side walls or closet door any-

where below furnace casing height, 6” (15.2 cm) minimum clearance

must be provided on the furnace side where return is located to provide

for proper air flow. See Figure 2. The 6” (15.2 cm) minimum clearance

is not required if there is a return grille installed above the furnace

height. This return grille cannot start more than three feet above the fur-

nace height.

For Upflow installations, a closet 32” (81.3 cm) wide by 30” (76.2 cm)

deep with a 30” (76.2 cm) wide door is necessary. See Figure 3.

When installing furnace in a separate closet or room which is accessi-

ble only through an outside door, a minimum of 200 in2(1290 cm2) free

opening for return air must be provided. The supply and return air must

be ducted, securely attached and be sealed to the furnace casing if

there are grilles in the outside door to the closet. Openings where ducts

pass through walls, the floor or the ceiling must be sealed to prevent air

leakage into or from closet and the living area.

Provisions shall be made to permit the return of 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 that the static pressure external to the fur-

nace does not exceed the static pressure rating shown on the furnace

rating plate.

The number, size and placement of registers should be such that even

distribution of heat is provided throughout the home.

SECTION IV: DOWNFLOW FURNACE

INSTALLATION

7900 SERIES DUCT CONNECTOR

We have designed our duct connector to eliminate a sub-base require-

ment. Table 1 will help you in deciding the part number of the duct con-

nector you need.

Provide adequate clearance for servicing.

1. Locate furnace conveniently away from wall facing or partitions to

permit easy removal of components.

2. A six (6) inch space minimum should be maintained between the

furnace and closet door when door is used for return air.

3. Two (2) feet of space must be available in front of furnace for

future servicing (blower, element or furnace removal, etc.).

FIGURE 2: Upflow Closet Clearances

30”

32”

30”

Wide Door Closet

25-1/2””

Return Air

Pass Through

Frame Width

1-5/8” Min., 2-3/8 Max.

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4 Johnson Controls Unitary Products

 - Indicates connector above or below could be used depending on tolerance

in floor to duct dimension.

 - Indicates connector above could be used depending on tolerance in floor

to duct dimension.

 - Indicates connector below could be used depending on tolerance in floor to

duct dimension.

DUCT CONNECTORS (7990 SERIES)

These duct connectors are for connecting the furnace to an under the

floor supply duct system. The furnace may be installed on combustible

flooring without a separate sub-base.

INSTALLATION OF SCREW 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

back edge of the floor opening. See Figure 6.

TABLE 1:

Duct Connector for Electric Furnaces

FLOOR TO

DUCT DIMENSIONS FINGERED

STYLE SCREW

TAB STYLE

1” (2.54 cm) 7990-6211 7990-6011

2” (5.1 cm) 7990-6221 7990-6021

3” (7.6 cm)  

4” (10.2 cm) 7990-6241 7990-6041

5” (12.7 cm)  

6” (15.2 cm) 7990-6261 7990-6061

7” (17.8 cm) 7990-6271 7990-6071

8” (20.3 cm) 7990-6281 7990-6081

9” (22.8 cm)  

10” (25.4 cm) 7990-6301 7990-6101

11” (282 cm)  

12” (30.5 cm) 7990-6321 7990-6121

13” (33 cm)  

FIGURE 3: Duct Connector Depth (7990 Series)

FIGURE 4: Duct Connector Dimensions (7990 Series)

Duct Connector

Depth

Floor

Joist

SUPPLY DUCT

14 See

Chart

18-3/4

2-3/8

4-3/8

2-3/8

SCREW ATTACHMENT

2-3/8

FIGURE 5: Recommended Floor Cut-out (7990 Series)

FIGURE 4: Duct Connector Dimensions (7990 Series)

14 See

Chart

DUCT

CUTOUT

DIMENSIONS

DUCT CONNECTORS FOR

TAB ATTACHMENT

18-3/4

2-3/8

18-3/4

2-3/8

4-3/8

2-3/4

Min.

23-1/4

20-1/2

9-7/8

2-1/8

1-3/8 6-3/8

9-3/4

3-1/4

1-1/8

Rear Wall

of Enclosure

Ceiling Cut-out

for Roof Jack

Floor Cut-out

for Duct Connector

Furnace

Outline

Optional

Electric

Entrance

Floor

Future Refrigerant

Line Entrance

5165699-BIM-C-0516

Johnson Controls Unitary Products 5

4. Apply a water based duct sealant to the 1/2” supply duct attach-

ment flange of the duct connector.

5. Determine which of the four positions the duct connector best cen-

ters over the supply duct and insert it through the floor cutout.

6. When properly aligned with the supply duct, secure the duct con-

nector to the floor with nails, flat head screws or staples.

7. Use screws as required to secure duct connector to supply duct.

8. Cut out the opening to the supply duct. If sealant was not used, the

installer should tape the mating flanges to provide a good air seal.

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 furnace. See Figure 7.

4. Determine which of the four positions the duct connector best cen-

ters over the supply duct and insert it through the floor cutout.

5. Mark cut-out location on the supply duct and remove the duct con-

nector.

6. Cut out the opening to the supply duct.

7. Bend tabs down through and back up under the supply duct.

8. Secure the duct connector to the floor with nails, flat head screws

or staples.

The duct connector is designed for use on ducts down to 12" in width.

When using the connector on smaller width ducts, there will not be suf-

ficient clearance to bend the tabs on two sides of the duct connector.

In such cases the tabs may be attached to the sides of the duct by

using sheet metal screws or other suitable fasteners. Holes for sheet

metal screws are provided in three (3) tabs on each side of the duct

connector. If more than 3 tabs need to be used to provide a more

secure and air tight connection, the remaining tabs can also be fas-

tened to the duct with screws after drilling the required screw holes.

PARALLEL DUCT SYSTEM

The EB Duct Connector Insert 37323716001 may be used on EB

Series Electric Furnaces where the duct system runs parallel to the fur-

nace. See Figure 8. The EB Duct Connector Insert should not be used if

the duct system runs perpendicular to the furnace or if the duct system

extends only one direction from the furnace.

The Duct Connector Insert cannot be used with 1” and 2” Duct Connec-

tors (7990-6011, 7990-6021, 7990-6211, and 7990-6221).

Follow Accessory Kit Installation Instruction 035-20632-001 provided

with the Duct Connector Insert.

FIGURE 6: Duct Connector Screw Attachment (7990 Series)

NOTICE

Duct sealant and tape must be classified as meeting HUD Standard

3280.715, U.L. Standard 181A.

FIGURE 7: Duct Connector Tab Attachment (7990 Series)

Locator Bracket

Nails, Flat Head Screws

or Staples

Screws

Floor

SUPPLY DUCT

Bend Tabs Under Duct

Opening to Secure to

the Supply Duct

SUPPLY DUCT

Locator Bracket

Nails, Flat Head Screws

or Staples

Floor

FIGURE 8: Duct System Configuration

FIGURE 9: Installation of Furnace

FURNACE DOOR

PERPENDICULAR LAYOUT

PARALLEL LAYOUT

Furnace Seated

Against the

Locator Bracket

Secure Furnace

to Floor with Two

Nails or Screws

5165699-BIM-C-0516

6 Johnson Controls Unitary Products

INSTALLATION OF THE FURNACE

1. Remove the front panels and set the furnace onto the duct con-

nector. Slide it back until the rear of the unit engages the locator

bracket.

2. Secure the front of the furnace with two screws at the mounting

holes provided. See Figure 9.

3. Secure the top of the furnace to a structural member 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 Conversion, locate the furnace conveniently away from

wall facing or partitions to permit easy removal and installation of

components.

2. Two (2) feet of space must be available in front of furnace for

future servicing (blower or element removal, furnace removal,

etc.).

Upflow Flange Kit 3500-7211/A, Coil Shelf and Insulation Kit 3500-

8961/A, and Door 3501-9111 are required prior to performing the steps

below. Filter Adapter box 3500-5451 is an optional item required only

if there are no other means provided for filtering the return air:

1. Assemble the 3500-5451 filter box per instructions provided with

kit.

2. Remove furnace panel.

3. Remove air filter.

4. Remove strap on the top of the unit, saving the screw and strap for

later use.

5. Turn entire unit upside-down, so the filter box is on the floor.

6. Remove two (2) screws that are on the front of the unit at the top.

Obtain front panel hanger angle from the upflow kit 3500-7211/A.

Secure the hanger angle with two (2) screws removed from the

furnace casing See Figure 10.

7. Attach the strap that was removed in Step 4 to the top, side or

back of the furnace.

8. Install the duct flange plate on top of the inverted furnace as

shown in Figure 11.

9. If installing a POS, Standard or Deluxe Air Systems, proceed to

Step 10.

Optional start collar for the Economy POS system shipped with

3500-7211/A can be used for blend air flex duct installation. Punch

the lineset knockout out and position the start collar over it. Duct

connector edge can be pushed under the casing flange and

screws provided can be used to capture the other end of duct con-

nector. Secure collar to top of furnace.

10. The flange plate shipped with kit 3500.7211* is mounted to the fur-

nace using eight (8) screws supplied with kit 3500.8961A. Two

blunt screws should be used to secure the front edge of flange

plate to furnace. See Figure 11.

11. Secure the top of the furnace to a structural member using screws

and the strap on top of the furnace. The mobile home manufac-

turer may provide an equivalent strap, if required, to secure the

furnace.

12. If excessive movement is expected, then some blower support is

recommended.

* Kits are optional and not provided with the furnace and need to be

ordered prior to converting unit to the upflow configuration.

WIRING

Furnace wiring is complete except for the power supply and the thermo-

stat wires. See wiring diagrams (Figures 16-21) for wire and fuse size.

See Table 2 for ground wire sizes. Thermostat wires connect through

side of furnace and should also be no smaller than 22 gauge. Power

wires can enter through the side of the unit or through the auxiliary

entrance, located in the bottom of the unit. (See Figure 1). When bring-

ing wiring through the bottom of the furnace, cable connectors must be

installed to hold wiring in place and to relieve any strain on the wiring.

These connectors will also serve as a seal between the furnace and the

floor. Thus, additional sealing is not required.

Refer to the National Electrical Code, Canadian Electrical Code and

local codes for wiring material requirements.

FIGURE 10: Hanger Angle Attachment

Hanger Angle

Screw x 2

Casing

FIGURE 11: Blower Bracket and Duct Flange Attachment

NOTICE

The furnaces are equipped with either one or two 60 amp circuit

breakers. These circuit breakers protect the wiring inside of the fur-

nace in the event of a short circuit. Additionally, these breakers pro-

vide a means of disconnecting 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 additional requirements concerning supply cir-

cuit wiring. Electrical Data can be found in Table 4.

Flange Plate

(Mounted with screws

EB Series

(Upflow Furnace)

Blend Air

Start Collar

Lineset

Knockout

Use Blunt

Screws Here

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Johnson Controls Unitary Products 7

Models for EB15F, EB17F, EB20F, and EB23F may be connected to a

single or dual branch circuit.

These units are shipped from the factory set up for dual power supply

connections. For single power supply connections, jumper bars (P/N

3500-378P*) are required and are available from the factory. See Figure

12.

Casing or cabinet must be permanently grounded in accordance with National Electrical Code or other applicable codes.

IMPORTANT

All installation on field wiring must be rated at 60ºC or higher.

TABLE 2:

Wiring Requirements

MODELS EB10F1

1. Does Not require a Jumper.

EB12F2

2. Jumper provided for Single Branch Circuit Only.

EB15F1EB17F1EB20F1EB23F3

3. Requires Jumper Bars (P/N 3500-378P) - Dual Supply for U.S. Only.

Single Branch Circuit Service 2 Leads + 1 Ground CKT #1

Nominal Circuit Load - Amps 44.0 50.7 64.0 70.7 84.0 94.0

Minimum Wire Size (90ºC) #8 #6 #4 #4 #3 #2

Minimum Wire Size (75ºC) #6 #6 #4 #3 #2 #1

Minimum Wire Size (60ºC) #6 #4 #3 #2 #1 #0

Ground Wire Size + #10 #8 #8 #8 #6 #6

Max. Fuse (or C.B.) - Amps 60 70 80 90 110 125

Dual Branch Circuit Service

NOT

APPROVED

CKT #1 CKT #2 CKT #1 CKT #2 CKT #1 CKT #2 CKT #1 CKT #2

Branch Circuit Load - Amps 44.0 20.1 47.3 23.4 44.0 40.0 47.3 46.7

Branch Circuit Min. - Amps 55.0 25.2 59.2 29.3 55.0 50.0 59.2 58.4

Minimum Wire Size (90ºC) #8 #10 #6 #10 #8 #8 #6 #6

Minimum Wire Size (75ºC) #6 #10 #6 #10 #6 #8 #6 #6

Minimum Wire Size (60ºC) #6 #10 #4 #10 #6 #6 #4 #4

Ground Wire Size 4

4. Refer to National Electrical Code. Table 250-122 for Non-Sheathed Conductor Ground Wire.

#10 #10 #10 #10 #10 #10 #10 #10

Max. Fuse (or C.B.) - Amps 60 30 60 30 60 50 60 60

TABLE 3:

EB Series Blower Performance

Static Pressure (inches of w.c.) 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8

Low Speed - Heating Speed

Models EB10, 12, 15 CFM (STD. Air) 945 936 936 924 915 889 870 813 705

Medium Speed - Heating Speed

Models EB17, 20, 23 CFM (STD. Air) 1160 1145 1145 1140 1129 1109 1073 1027 935

Medium High - with A-Coil in place CFM (STD. Air) 1340 1317 1290 1252 1208 1158 1095 1021 876

High - with A-Coil in place CFM (STD. Air) 1573 1534 1490 1435 1369 1309 1237 1135 1019

TABLE 4:

Electrical Data

MODEL NUMBER EB10F EB12F EB15F EB17F EB20F EB23F

D.O.E.

Output 240 VAC

60 Hz.,1 Phase BTU 34,000 39,000 51,000 56,000 67,000 77,000

kW 10.0 11.4 15.0 16.4 19.6 22.6

OUTPUT

CAPACITY

230 VAC

60 Hz.,1 Phase BTU 31,000 36,000 47,000 52,000 61,000 71,000

kW 9.1 10.6 13.8 15.2 17.9 20.8

220 VAC

60 Hz.,1 Phase BTU 29,000 33,000 43,000 48,000 57,000 65,000

kW 8.5 9.7 12.6 14.1 16.7 19.1

Element Capacity

@ 240 VAC kW 9.6 11.2 14.4 16.0 19.2 21.6

Amps 40.0 46.7 60.0 66.7 80.0 90.0

Motor Amps @ 240 V. 4.0 Maximum

Circuit Load Amps

@ 240 V. CKT 1 44.0150.7144.0 47.3 44.0 47.3

CKT 2 NA NA 20.0 23.4 40.0 46.7

1. Approved for Single Branch Circuit Service Only.

5165699-BIM-C-0516

8 Johnson Controls Unitary Products

SECTION V: THERMOSTAT

INSTALLATION

The adjustable heat anticipator in the thermostat is pre-set at 0.4Amps.

This setting should be checked at the time of installation.

In some cases the thermostat may be a “self-setting” type in which case

no amp setting will be found on the thermostat, eliminating the need for

any field adjustment.

Thermostat should be located on an inside wall in an open area to more

closely regulate average room air, preferably, where there is air move-

ment back to furnace. Care should be used to locate thermostat away

from hot air discharge openings, lights, etc. Locating height of thermo-

stat is important. Thermostat should be located 52” to 66” (132 - 167.6

cm) above the floor. This is sometimes called the comfort zone.

If a condenser with its own Transformer shares a Heat/Cool Thermostat

with this furnace, use a thermostat with isolating contacts to prevent

interconnection of Class II 24 Volt Systems.

Cycle furnace using the thermostat to make sure it will operate cor-

rectly.

Maintenance and operating instructions are in the customer envelope

accompanying the furnace. Give the customer envelope to the home

owner.

FIGURE 12: Control Box

TRANSFORMER

LIMIT

SWITCHES

GROUND

LUGS

3500-378P* JUMPER

BARS (FOR SINGLE

BRANCH CIRCUIT

SERVICE)

THERMOSTAT

WIRES

CIRCUIT

BREAKERS

SEQUENCERS

NOTE:

As Shipped, the jumper bar assembly

is set up for bottom entry. For side

entry, the top lug can be removed and

re-positioned, as shown, to provide

proper wire bending clearances.

A0345-001

FFO

WARNING

For personal safety be sure to turn the electrical power OFF at the

household service box and at the furnace circuit breakers before

attempting any service or maintenance operations. Homeowners

should never perform any maintenance which requires opening

electric 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

FieldWiring

Protective

Shield

BLOWER

CAUTION

When using separate thermostats, a thermostat interlock system

must be provided to prevent simultaneous operation of the furnace

and air conditioner. Simultaneous operation can result in coach

overheating, equipment damage and energy waste. (See Figures

14 and 15.)

Do not connect Yellow wire to thermostat until an outdoor unit is

installed.

FIGURE 14: Thermostat Wiring

Cooling

Thermostat

Heating

Thermostat

Air Conditioner

Furnace

DoublePole

Double Throw Switch

5165699-BIM-C-0516

Johnson Controls Unitary Products 9

SECTION VI: OPTIONAL AIR

CONDITIONING ACCESSORIES

This furnace is already equipped with a blower and control system to

add-on air conditioning and heat pump. Insulation and coil shelf kit

(3500-8941/B for downflow up to 4 ton (19-1/2” or less deep coil), 3500-

8961/A for upflow up to 4 ton (19-1/2” or less deep coil), 3500-8601 for

downflow coils 5 ton or any coil with a drain pan longer than 19-1/2”,

and 3500-8602 extension cabinet for any coils taller than 19”. must be

installed when adding on such remote air conditioning systems.

HIGH PERFORMANCE BLOWER

ACCESSORY PACKAGE

All EB furnaces are equipped with a blower and control system to add-

on air conditioning and heat pumps to specified sizes. If the require-

ment is to achieve more air flow or cooling than specified, then the

blower inside the furnace has to be replaced with an accessory blower

package 3500-7901/A. This accessory blower package would deliver

air conditioning up to 5-tons, and heat pump up to 4-tons. Accessory

package (3500-7901/A) includes blower, insulation, coil shelf, trap,

clamps, etc. Please refer to the installation instructions packed with the

accessory package for more information.

FIGURE 15: Thermostat Wiring

DELUXEBLEND AIRII

FRESH

AIR

FRESH

AIR

OFF

AUTO

ALARM

RED

WHITE WHITE

GREEN

BLACK

RED

WHITE

GREEN

YELLOW

WIRES FROM FURNACE

NOT FACTORY

INSTALLED

STANDARD OR DELUXE

BLEND AIR CONTROLBOX

THERMOSTATWIRING SCHEMATIC FOR:BLEND AIR AND FURNACE

The EB Furnaces are A/C ready.

All furnaces installations should include a minimum of four conductor thermostat

wiring to accommodate future air conditioning installations.

Four-conductor wire is required for thermostat connection.

Attach the 4 low voltage wires extending from the control

box as follows:

1.wire from Furnace to thermostat wire.

2. wire from Furnace to thermostat wire.

3.wire from Furnace to thermostat wire.

4.wire from Furnace to condensing unit contactor.

REDRED

WHITE WHITE

GREEN GREEN

BLACK

WARNING

Failure to install this insulation and coil shelf kit could result in dam-

age to equipment and/or personal injury. Liability and warranty from

the manufacturer could also be void.

!CAUTION

All areas around the line sets, drain hoses and other openings in

the coil shelf should be sealed air tight. Use some moldable com-

pound or caulking to seal the area. Failure to do so may result in

loss of performance and premature compressor failure.

5165699-BIM-C-0516

10 Johnson Controls Unitary Products

SECTION VII: WIRING DIAGRAMS

FIGURE 16: EB10F Wiring Diagram

IF ANY OF THE ORIGINAL WIRE

SUPPLIED WITH THIS UNIT MUST BE

REPLACED. IT MUST BE REPLACED

WITH TYPE 105 C THERMOPLASTIC

WIRING MUST CONFORM TO LOCAL CODES

BLK

RED

WHT

GRN

BLEND AIR

CONTROL BOX

BLU-MED. HIGH SP.

MOTOR

YEL-MED. LOW SP.

BLK-COOLING SP.

RED-HEATING SP.

2 SPADE (INSUL.)

TERMINALS USED

WHEN

CHANGING

SPEEDS LINE

LOAD

ORG

BRN

CAPACITOR

ORG-COMMON.

TRANSFORMER

BLK

FUSE

RED

BLK

HEAT/COOL

T'STAT

BLOWER

RELAY

YEL

BLK

M3 M1

SEQUENCER

BLU

YEL

ELEMENTS

SWITCHES

LIMIT

60 AMP

CIRCUIT #1

BREAKER

ORG

YEL

ORG

MODEL: EB10F

COND. UNIT

CONTACTOR

REPLACE

FILTER

WITH SAME

SIZE

240 VAC - 60 Hz - 1 PHASE

NOTE:

4-SPEED BLOWER

EB SERIES FURNACES

GRN

WHT

YEL

SINGLE BRANCH

CIRCUIT SERVICE

240 VAC.

60Hz

1 PHASE

GND. LUG

DO NOT OPEN THIS PANEL UNTIL ELECTRICAL POWER IS SHUT

OFF AT HOUSEHOLD SERVICE BOX. CHECK WITH A VOLTMETER

OR OTHER PROPER INSTRUMENT.

-HAZARD OF ELECTRICAL SHOCK-

SERVICE CONNECTION COVER MUST BE INSTALLED.

IF FILTERS ARE USED, CLEAN/REPLACE EACH SEASON OR

MORE OFTEN IF NEEDED. 5166485-UWD-A-1015

IMPORTANT -

HIGH VOLTAGE

SHOCK HAZARD

THIS FURNACE MAY BE CONNECTED TO MORE THAN ONE POWER SUPPLY.

TURN OFF ALL POWER TO THE FURNACE AT THE WALL BOX, AND LOCK IT OUT.

RELAY

BRN

ORG

BRN

WARNING

CAUTION

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 #6

WIRE SIZE (60 C) COPPER #6

MAX. FUSE SIZE (OR CB) - AMPS 60

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