Coleman EB23C, EB17C, EB20C, EB15C, EB12C Installation Manual
...
DOWNFLOW/UPFLOW
INSTALLATION MANUAL
ISO 9001
Certified Quality
Management System
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
”
ELECTRIC FURNACE
MODELS: EB
LIST OF SECTIONS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
DOWNFLOW FURNACE INSTALLATION . . . . . . . . . . . . . . . . . . . . .3
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
LIST OF TABLES
Duct Connector for Electric Furnaces . . . . . . . . . . . . . . . . . . . . . . . . . 3
Wiring Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
THERMOSTAT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
OPTIONAL AIR CONDITIONING ACCESSORIES . . . . . . . . . . . . . . .9
WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
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
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. 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 conversion 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
266180-BIM-B-0209
266180-BIM-B-0209
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.
alert against unsafe practices and hazards involving only property damage.
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.
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.
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 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.
.
.
It is also used to
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).
NOTE: All applicable codes take precedence over any recommendation made in these instructions.
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.
2 Johnson Controls Unitary Products
266180-BIM-B-0209
30”
32”
30”
Wide Door
Closet
25-1/2””
Return Air
Pass Through
Frame Width
1-5/8” Min., 2-3/8 Max.
Duct Connector
Depth
Floor
Floor
Joist
SUPPLY DUCT
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 in2 (1290 cm2) free area opening.
Use Return Grille 7900-287P/B, or any Return Grille with minimum 200
2
in
free area opening.
For A/C and HP Applications (Standard Blower)
Minimum 250 in2 (1613 cm2) free area opening. Use accessary blower
package 3500-7901, or use Return Grille 7900-287P/B, 1FG0620BK
(hinged), or Louvered Door 3500-1581, 3500-5851 (bulk pack), or any
Return Grille with minimum 250 in
2
(1613 cm2) free area opening.
For A/C and HP Applications (Accessory Blower)
Minimum 330 in2 (2129 cm2) free area opening. Use 5 ton blower
accessory 3500-7901 use Return Grille 1RF1025BK, 1FG0125
(hinged), or Louvered Door 3500-1591, 3500-5861 (bulk pack), or any
Return Grille with minimum 330 in
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.
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 accessible
only through an outside door, a minimum of 200 in
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.
2
(2129 cm2) free area opening.
2
(1290 cm2) free
SECTION IV: DOWNFLOW FURNACE
INSTALLATION
7900 SERIES DUCT CONNECTOR
We have designed our duct connector to eliminate a sub-base requirement. Table 1 will help you in deciding the part number of the duct connector 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.).
TABLE 1:
- Indicates connector above or below could be used depending on
- Indicates connector above could be used depending on toler-
- Indicates connector below could be used depending on tolerance
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)
tolerance in floor to duct dimension.
ance in floor to duct dimension.
in floor to duct dimension.
SCREW
FIGURE 2: 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 Unitary Products 3
DUCT CONNECTORS (7990 SERIES)
FIGURE 3: 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.
266180-BIM-B-0209
12
13
11
14
See
Chart
18-3/4
18-3/4
2-3/8
4-3/8
2-3/8
SCREW ATTACHMENT
2-3/8
13
11
14
See
Chart
12
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
20
3-1/4
1-1/8
15
15
1
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
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
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.
FIGURE 4: Duct Connector Dimensions (7990 Series)
FIGURE 6: Duct Connector Screw Attachment (7990 Series)
4. Apply a water based duct sealant to the 1/2" supply duct attachment flange of the duct connector.
5. Determine which of the four positions the duct connector best centers over the supply duct and insert it through the floor cutout.
6. When properly aligned with the supply duct, secure the duct connector 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.
NOTE: 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 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.
FIGURE 5: Recommended Floor Cut-out (7990 Series)
4 Johnson Controls Unitary Products
FIGURE 7: Duct Connector Tab Attachment (7990 Series)
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