Coleman Evcon EB23B, EB20B, EB17B, EB15B, EB12B Installation Guide

...

DOWNFLOW/UPFLOW

ELECTRIC FURNACE

MODELS: EB SERIES

Incorrect installation may create condition

where the operation of the product could

cause personal injury or property damage.

The furnace shah be installed so the electri- cal components are protected from water.

CAUTION]

This product must be installed in strict compliance with the enclosed installation instructions and any applicable Local, State and National Codes including, but not lim- ited to building, electrical, and mechanical codes. Improper installation will void the

warranty.

66669 035-15266-003 Rev. A (0804)

035-15266-003Rev.A(0804)

GENERAL INFORMATION

EB FURNACE NOTES

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.

4. Filter size is universal to all models - 16 x 20 x 1.

19-5/8

SUB-BASE, IF USED, ADDS 7/8" MORE TO TOTAL HEIGHTAND

3/8" TO WIDTH. N 16-1/2

THERMOSTAT WIRING

ENTRY

FIELD

WIRING

ENTRY

WIRING ENTRY OPTIONAL BOTTOM FIELD

FIGURE 1 : FURNACE DIMENSIONS

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

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

7. Coil cavity built into furnace.

8. All furnaces are equipped with an air conditioner blower and is AiC or Heat Pump ready.

9. Holding strap furnished on top rear of furnace.

10. This furnace is designed for downflow application; how- ever, it may be converted to an upflow application. (See Page 6 for upflow conversion instruction.)

11. 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 Laborato-

ries for the United States and Canada.

A 1-7/8

B 2-5/8

C 3-1/2

D 1 E 5-1/16

F 5-1/2

G 5-13/16

H 1 J 1-3/4 K 7-13-16 L 8-5/8

M 9-7/16

CODES The electric furnace must be installed in accordance with the

following codes:

Standard for the Installation of Air Conditioning and Ven- tilating 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 l (CSA C22.1) All local codes (state/county/township).

NOTE: All applicable codes take precedence over any rec-

ommendation made in these instructions. LOCATION Access for servicing is an important factor in the location of

any furnace. Provide a minimum of 24 inches 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 inches from a facing wall or partition.

FURNACE CLEARANCE Electric furnace is approved for zero (0) in. clearance to com-

bustible material on all or any part of the furnace exterior and the inlet or outlet duct work. Clearances must be provided above the furnace for a minimum of 200 sq. inches free open- ing for return air. For clearances other than shown above see paragraph on Return Air.

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 in 2 free area opening.

Use Return Grille 7900-287P/B, Or any Return Grille with minimum 200 in 2 free area opening.

FOR A/C UP TO 4-TONS AND HP UP TO 3 1/2-TONS Minimum 250 in 2 free area opening.

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 free area opening.

FOR A/C UP TO 5-TONS AND HP UP TO 4-TONS Minimum 330 in 2 free area opening.

Use Return Grille 1RF1025BK, 1FG0125 (hinged), Or Louvered Door 3500-1591,3500-5861 (bulk pack), Or any Return Grille with minimum 330 in 2 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 Iouvered 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. See Figure 2. The 6 " 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.

2 Unitary Products Group

There must be at least 2 ft. of space available

in front of furnace for

23" MIN.

_ 20" _

24" MIN.

servicing the furnace when necessary.

A 6 in. clearance is

required if the space between furnace and

J enclosure is used for

return air,

FIGURE 2 : ALCOVE & CLOSET CLEARANCES

For Upflow installations, a closet 32 inches wide by 30 inches deep with a 30-inch 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 sq. in. free opening for return air must be provided. The sup- ply 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.

32"

1-5/8" MIN., 2-3/8 MAX. _

30"

RETURN AIR PASS THROUGH

FRAME WIDTH

30" _1 CLOSET

WIDE DOOR

FIGURE 3 • UPFLOW CLOSET CLEARANCE

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 com-

ply may cause improper heating and may cause the furnace to cycle on the limit.

25-1/2 ....

035-15266-003Rev.A(0804)

DUCT SYSTEM DESIGN Electric furnace is designed to operate at a given static pres-

sure. In order to assure proper air flow through the furnace, the dis-

tribution 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. See Table 3.

The number, size and placement of registers should be such that even distribution of heat is provided throughout the

home. DOWNFLOW FURNACE INSTALLATION

(WITH 7900 SERIES DUCT CONNECTOR)

We have redesigned our duct connector to eliminate the sub- base requirement. Table 1 will help you in deciding the part number of the new duct connector you need.

If you are installing a new duct connector (7900 Series), refer to the following instructions. Read carefully the instructions provided before starting the installation.

Provide adequate clearance for servicing.

1. Locate furnace conveniently away from wall facing or partitions to permit easy removal of components.

2. A minimum of six (6) inches should be maintained between the furnace and closet door when door is used

for return air. See Figure 2.

3. Two (2) feet of space must be available in front of fur- nace for future servicing (blower or element removal, fur- nace removal, etc.).

Table 1: DUCT CONNECTOR FOR ELECTRIC

FURNACES

FLOOR TO

DUCT DIMENSIONS

10" 11"

12" 13" 14"

15"

1"4,-Indicates connector above or below could be used

depending on tolerance in floor to duct dimension.

1"1"-Indicates connector above could be used depending

on tolerance in floor to duct dimension.

4,4,- Indicates connector below could be used depending

on tolerance in floor to duct dimension.

FINGERED

STYLE

7990-6211 7990-6221

14,

7990-6241

14,

7990-626! 7990-6271 7990-628!

14,

7990-6301

14,

7990-6321

NA NA

SCREW

TAB STYLE

7990-60! 1 7990-6021

14,

7990-6041

14,

7999-6961 7990-6071 7990-6081

14,

7990-6101

14,

7990-6121

NA NA

Unitary Products Group 3

035-15266-003 Rev. A (0804)

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.

DUCT CONNECTORS FOR

SCREW ATTACHMENT

18 42_434

_14_

_13

o_o

FIGURE 4 : DUCT CONNECTOR DIMENSIONS (7990 SERIES)

REAR WALL CEILING CUT-OUT

OF ENCLOSURE ........ / FOR ROOF JACK

W___ .................. // FLOOR CUT*OUT

"_ ,,': , , , , FOR DUCT

I _/ I CONNECTOR

m _ i / i & i , ,

| _ _ FURNACE

/_ ( 5 ) JN °UTL'NE

DUCT CONNECTORS FOR

TAB ATTACHMENT

18¼

14_

_DUCT 11

_ DIMENSIONS o

CUTOUT _°

_o °

DUCT CONNECTOR

DEPTH

j_FLOOR

i i i OPT ONAL

"!_ i _ _ ...... ELECTRIC

2_1/8,,, !l I

FUTURE REFRIGERANT LINE ENTRANCE

[_4- ENTRANCE

lq/8

FLOOR

FIGURE 5 : RECOMMENDED FLOOR CUT-OUT (7990

SERIES)

FIGURE 6 : DUCT CONNECTOR DEPTH

SUPPLY DUCT

(7990 SERIES)

4 Unitary Products Group

035-15266-003Rev.A(0804)

LOCATORBRACKET

NAILS,FLATHEADSCREWS

OR STAPLES

_ SCREWS

SUPPLY DUCT

FIGURE 7 • DUCT CONNECTOR SCREW

ATTACHMENT (7990 SERIES)

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 7.

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, fiat head screws or

staples.

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

8. Cut out the opening to the supply duct. If sealant was not used, the installer should tape the mating flanges to pro- vide a good air seal.

NOTE: Duct sealant and tape must be classified as meeting

HUD Standard 3280.715, U.L. Standard 181A. Tape used to provide a better air seal should be approved by the applicable National or Local Code.

LOCATOR BRACKET

OR STAPLES

BENDTABSUNDER

NAILS, FLAT HEAD SCREWS

DUCT OPENING TO SECURE TO THE SUPPLY DUCT.

FLOOR

SUPPLY DUCT

FIGURE 8 : DUCT CONNECTOR TAB

ATTACHMENT (7990 SERIES)

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 8.

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 will not be 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.

Unitary Products Group 5

035-15266-003Rev.A(0804)

PARALLELDUCTSYSTEM TheEBDuctConnectorInsert37323716001maybeusedon

EBSeriesElectricManufacturedHousingFurnaceswhere theductsystemrunsparalleltothefurnace.SeeFigure9.

TheEBDuctConnectorInsertshouldnotbeusediftheduct systemrunsperpendiculartothefurnaceoriftheductsys-

temextendsonlyonedirectionfromthefurnace. TheDuctConnectorInsertcannotbeusedwith 1" and 2"

Duct Connectors (7990-6011, 7990-6021, 7990-6211, and 7990-6221 ).

Follow Accessory Kit Installation Instruction 035-20632-001 provided with the Duct Connector Insert.

JRNACE DOO

PERPENDICULAR LAYOUT

PARALLEL LAYOUT

FIGURE 9 : DUCT SYSTEM CONFIGURATION

FURNACE CONVERSION TO UPFLOW APPLICATION

Upfiow furnace conversion is easily accomplished by follow- ing 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 fur- nace for future servicing (blower or element removal, fur- nace removal, etc.).

3500-5451" Adapter Box and/or 3500-7211" Upflow Flange Plate Kit are needed prior to following steps below:

1. Assemble the 3500-5451 filter box per installation pro- vided 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 *. Secure the hanger angle with two (2) screws removed from the furance casing See Figure 11.

FURNACE SEATED

AGAINST THE

LOCATOR BRACKET

FIGURE 10 : INSTALLATIONOF FURNACE

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 Iocator bracket.

2. Secure the front of the furnace with two screws at the mounting holes provided. See Figure 10.

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.

HANGER ANGLE _.

SCREW x 2

FIGURE 11 : HANGER ANGLE ATTACHMENT

Attach the strap that was removed in Step 4 to the top, side or back of the furnace.

Install the duct flange plate on top of the inverted furnace as shown in Figure 12.

If installaing POS, Standard or Deluxe Air Systems, pro- ceed to Step 10. Optional start collar for the Economy POS system shipped with 3500-7211" 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 connector. Secure collar to top of furnace.

6 Unitary Products Group

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