Johnson Controls EUE17A, EBE17A, EUE15A, EBE12A, EUE12A Installation Manual
...
INSTALLATION MANUAL
®
ELECTRIC FURNACE
MODELS: EBE*/EUE*
Downflow/Upflow
For Installation In:
1. Manufactured (Mobile) Homes
2. Recreational Vehicles & Park Models
3. Modular Homes & Buildings
LIST OF SECTIONS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
ELECTRIC FURNACE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . .4
LIST OF FIGURES
Furnace Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Alcove & Closet Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
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
Installation of Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
LIST OF TABLES
Duct Connector for Electric Furnaces . . . . . . . . . . . . . . . . . . . . . . . . .4
Wiring Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
THERMOSTAT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
OPTIONAL AIR CONDITIONING ACCESSORIES . . . . . . . . . . . . . . 8
WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Field Wiring Shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Control Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Thermostat Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
EBE10*/EUE10* Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
EBE12*/EUE12* Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
EBE15*/EUE15* Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
EBE17*/EUE17* Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
EBE20*/EUE20* Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
EBE23*/EUE23* Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
EBE/EUE Series Blower Performance . . . . . . . . . . . . . . . . . . . . . . . . 6
Physical and Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SECTION I: GENERAL
The following list includes important facts and information regarding the
EBE/EUE furnace and its packaging inclusions:
1. Furnace is rated at 240 volts, 60 Hz, single phase.
2. Filters are furnished with EBE model, and are the same for all EBE
models - 16 x 20 x 1 in top and 20 x 20 x 1 in the louvered door. No
filters are furnished with EUE models. External filter base and/or
filter rack is needed for field installation.
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 for EBE
model).
6. All furnaces are equipped with an air conditioner blower and is A/C
or Heat Pump ready (coil shelf accessory required for EBE model).
7. Holding strap furnished on top rear of furnace.
8. The EBE furnace is designed for downflow application, and the
EUE furnace is designed for upflow application.
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 Underwriter's Laboratories for the United States and Canada.
24”
SUB-BASE, IF
USED, ADDS
7/8” MORE TO
TOTAL HEIGHT
AND 3/8” TO
WIDTH.
THERMOSTAT
WIRING
ENTRY
FIELD
WIRING
ENTRY
J
H
A
B
C
FIGURE 1: Furnace Dimensions
K
E
F
G
D
19-5/8”
M
L
51-5/8”
N
OPTIONAL BOTTOM FIELD
WIRING ENTRY
A
B
C
D
E
F
G
H
J
K
L
M
N
1-7/8”
2-5/8”
3-1/2”
1”
5-1/16”
5-1/2”
5-13/16”
1”
1-3/4”
7-13/16”
8-5/8”
9-7/16”
16-1/2”
A0552-001
Johnson Controls Ducted Systems 5396713-BIM-C-0319
5396713-BIM-C-0319
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 damage.
!
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 maintenance can cause injury or property damage. Refer to this manual
for assistance or for additional information, consult a qualified contractor, installer or service agency.
!
CAUTION
This product must be installed in strict compliance with the installation 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, personal injury or loss of life.
1. Install this electric furnace only in a location and position as specified in SECTION III of these instructions.
2. Always install the electric furnace to operate within the electric furnace’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 EBE/EUE 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 EBE/EUE 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 electrical 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 hazardous due to the electrical components. Only trained and qualified
personnel should install, repair, or service heating/cooling equipment. 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 damage 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 Conditioning Systems (NFPA 90B)
• National Electric Code (NFPA 70)
• Canadian Electrical Code, Part I (CSA C22.1)
• All local codes (state/county/township).
NOTICE
All applicable codes take precedence over any recommendation
made in these instructions.
2 Johnson Controls Ducted Systems
5396713-BIM-C-0319
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
This furnace is approved for zero (0) inch clearance to combustible
material on all or any part of the furnace exterior and the inlet or outlet
duct work except as stated below.
For furnaces installed in upflow application, there must be a minimum
of 1” (2.54 cm) clearance from the bare surface of the outlet duct work
for a distance of 3 feet (91.4 cm) from the supply air opening. This
requirement is met if the duct is wrapped with an insulating material at
least 1” thick and having an R-value of at least R-4.
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 & 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 applications. Use any return grille with minimum 250 sq. in.
(1613 sq. cm) free area opening.
For 5 Ton AC Applications (Accessory Blower)
Minimum 350 sq. in (2129 sq. cm) free area opening. Use 5 Ton AC
blower accessory 3500-7901/A. Use any return grille with a minimum
350 sq. in. (2129 sq. cm) free area opening.
Location
For downflow applications, the return air opening can be located in a
closet front door, or in a sidewall above the furnace casing, or in a louvered door on the furnace. If opening for the return air is located in the
floor, side walls or closet door anywhere below furnace casing height, 6
inches minimum clearance must be provided on the furnace side where
return is located to provide for proper air flow.
For Upflow installations, a closet that is 32 inches wide by 30 inches
deep with a 30-inch wide door is necessary. This is not required if there
is a return grille installed below furnace.
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
opening for the return air is located in the floor, side walls or closet
door anywhere 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 furnace height. If the louvers in the closet door
have as much air flow area as the EB louvered furnace door, only 1”
clearance is required.
There must be at least
2 feet of space available
in front of furnace for
23” MIN.
20”
servicing the furnace
when necessary.
A 6 inch clearance is
required if the space
24” MIN.
between furnace and
enclosure is used for
return air.
20”
A0844-001
FIGURE 2: Alcove & Closet Clearances
When installing furnace in a separate closet or room which is accessi-
ble only through an outside door, a minimum of 200 in
2
(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.
NOTE:
Minimum required square
32”
inch opening dictates the
height of the return air
opening as discussed
earlier in the section.
1-5/8” 2-3/8
MIN., MAX.
30”
Return air
25-1/2” OPENING WIDTH
pass through
frame width.
30”
WIDE DOOR
CLOSET
A0877-001
FIGURE 3: Upflow Closet Clearances
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 heating 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 furnace 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.
Johnson Controls Ducted Systems 3
5396713-BIM-C-0319
SECTION IV: ELECTRIC FURNACE INSTALLATION
7900 SERIES DUCT CONNECTOR FOR EBE DOWNFLOW
The duct connector is designed to eliminate a sub-base requirement.
Table 1 provides the part number of the duct connector needed.
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.).
TABLE 1:
- Indicates connector above or below could be used depending on tolerance
- Indicates connector above could be used depending on tolerance in floor
- Indicates connector below could be used depending on tolerance in floor to
DUCT CONNECTORS (7990 SERIES)
FIGURE 4: Duct Connector Depth (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.
Duct Connector for Electric Furnaces
FLOOR TO
DUCT DIMENSIONS
FINGERED
STYLE
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)
in floor to duct dimension.
to duct dimension.
duct dimension.
DUCT CONNECTOR
SUPPLY DUCT
DEPTH
FLOOR
SCREW
FLOOR
JOIST
A0867-001
DUCT CONNECTORS FOR
SCREW ATTACHMENT
18-3/4
2-3/8
2-3/8
14
13
11
DUCT CONNECTORS FOR
TAB ATTACHMENT
18-3/4
14
13
DUCT
CUTOUT
DIMENSIONS
2-3/8
2-3/8
12
18-3/4
4-3/8
2-3/8
2-3/8
11
12
18-3/4
4-3/8
FIGURE 5: Duct Connector Dimensions (7990 Series)
CEILING CUT-OUT
FOR ROOF JACK
FLOOR CUT-OUT
FOR DUCT
CONNECTOR
1-1/8
FLOOR
9-7/8
23-1/4
20-1/2
2-1/8
1-3/8
1
FUTURE
REFRIGERANT
LINE ENTRANCE
REAR WALL
MIN.
OF ENCLOSURE
2-3/4
6-3/8
15
15
3-1/4
9-3/4
20
FIGURE 6: Recommended Floor Cut-out (7990 Series)
See
Chart
.
A0868-001
See
Chart
A0869-001
FURNACE
OUTLINE
OPTIONAL
ELECTRIC
ENTRANCE
A0875-001
4 Johnson Controls Ducted Systems
5396713-BIM-C-0319
INSTALLATION OF SCREW ATTACHMENT DUCT
CONNECTOR (7990 SERIES)
1. Make floor cut out as shown in Figure 6.
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 7.
LOCATOR BRACKET
NAILS, FLAT HEAD SCREWS,
OR STAPLES
SCREWS
FLOOR
SUPPLY DUCT
FIGURE 7: Duct Connector Screw Attachment (7990 Series)
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.
A0872-001
4. Determine which of the four positions the duct connector best centers over the supply duct and insert it through the floor cutout.
5. Mark cut-out location on the supply duct and remove the duct connector.
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 is not sufficient
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 fastened to the duct with screws after drilling the required screw holes.
INSTALLATION OF THE FURNACE
1. Remove the front panels and set the furnace onto the duct connector. 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 provided
mounting holes. See Figure 9.
Secure Furnace
to Floor with Two
Furnace Seated
Against the
Locator Bracket
.
Nails or Screws
(Not Provided).
NOTICE
Duct sealant and tape must be classified as meeting HUD Standard
3280.715, U.L. Standard 181A.
INSTALLATION OF TAB ATTACHMENT DUCT
CONNECTOR (7990 SERIES)
1. Make floor cut out as shown in Figure 6.
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 8.
LOCATOR BRACKET
NAILS, FLAT HEAD SCREWS,
OR STAPLES
(Bend tabs under duct
opening to secure to the
supply duct.)
FLOOR
SUPPLY DUCT
FIGURE 8: Duct Connector Tab Attachment (7990 Series)
A0873-001
A0874-001
FIGURE 9: Installation of Furnace
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.
Johnson Controls Ducted Systems 5
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