Nordyne E3 User Manual

Downfl ow, Upfl ow Electric Furnaces

Owners Manual/Installation Instructions

E3 Series (Air Conditioner/Heat Pump Air Handler)

IMPORTANT: Read this owner information
to become familiar with the capabilities and
use of your heating appliance. Keep this
literature where you will have easy access
to it in the future. If a problem occurs, check
the instructions and follow recommenda­tions given. If these suggestions don’t
eliminate your problem, call the appropriate
NORDYNE distributor. A distributor service
list is included with this appliance.

WARNING:

Do not store or use gasoline or other
fl ammable vapors and liquids in the
vicinity of this or any other appliance.
Improper installation, adjustment,
alteration, service or maintenance
can cause injury, property damage,
or death. Refer to this manual. For
assistance or additional information
consult a qualifi ed dealer or service
agency. To avoid personal injury or
property damage, ask a service
technician to inspect the furnace and to
replace any part of the control system
which has been under water.

SECTION 1. OWNER INFORMATION
OPERATING INSTRUCTIONS
Before Operating System

Before operating your heating/cooling system
(see Figure 1), make sure that:

• Control panel covers are closed.

• Blower and/or relay control plugs are
plugged in.

• Fan switch is set to “AUTO” (E3EH units
only).

CAUTION:

No user serviceable parts inside
control panel. DO NOT OPEN.

• Circuit breakers are in “ON” position.

• All power supply switches for furnace and
outside unit (if installed) are turned on.

• Furnace door is closed and properly
latched.

Refer to the owner’s manual supplied with the
optional heat pump or air conditioner for further
information.

CAUTION:

For optional A/C or H/P systems,
always wait at least fi ve minutes after
the system shuts off before restarting
the system. Observe this procedure
when operating the system per the
following instructions.

2

10 20 30

Temperature Selector

Temperature
Scales

System Switch
(optional sub-base)

Fan Switch
(optional sub-base)

50 60 70 80 90

SYSTEM

HEAT OFF COOL

VENTILATE

ON AUTO

Indoor Coil
(optional)

Coil Air Filters

(used with indoor coil)

Furnace Air Filter

(NOT used with

coil air filters)

Blower

Circuit Breakers

Data Label

Control Panel

Cover (left)

Figure 1. Furnace Parts Identifi cation

Product Type

E - Electric Furnace

Generation

EB - A/C Blower Equipped Relay

EX - Multi-Speed, X13 Motor

Used with Platinum Series

3 - Third Series

Product Identifier

Control Panel Cover (right)

E 3 EB - 010 H

Electrical Code

H - 240-1-60

Primary Capacity

010 - 10 kw 012 - 12 kw
015 - 15 kw 017 - 17 kw
020 - 20 kw 023 - 23 kw

Model Identifi cation

3

To Operate System in Cooling Mode

NOTE: The “FAN ON/FAN AUTO” (fan switch)

and “HEAT/OFF/COOL” (system switch) are
located either on your thermostat (if it’s supplied
with a sub-base) or on the relay box added to
your furnace.

1. Make sure blower selector switch is on
“Auto.”

2. Set fan switch to “AUTO.”

3. Set system switch to “COOL.”

4. Set thermostat temperature selector to
desired comfort level.

To Operate System in Heating Mode

1. Make sure blower selector switch is on
“Auto.”

2. Set fan switch to “AUTO.”

3. Set system switch to “HEAT.”

4. Set thermostat temperature selector switch
to desired comfort level.

NOTE: Allow at least one hour for the room tem­perature to stabilize before you make a second
adjustment to the thermostat setting. Once the
desired comfort level is established, make only
small adjustments to the thermostat setting to
meet changing temperature conditions.

To Operate Blower Continuously

1. Set blower selector switch to “ON” for summer
air circulation only (see Figure 1),

OR

2. If thermostat is equipped with optional
heating/cooling sub-base or relay box (see
Figure 1), set fan switch to “ON.”

To Balance Air Distribution

1. On a typical day, set thermostat selector to
desired comfort level and operate system for
several hours with all air registers open.

2. With system on, check temperature in all
rooms.

3. Partially close registers in rooms that are
too warm (in heating mode) or too cool
(in cooling mode) and in rooms that are
infrequently occupied.

4. Re-check room temperature and adjust
registers as needed.

To Shut Off System

1. Make sure blower selector switch is on
“Auto”.

2. Set thermostat temperature selector to
lowest temperature setting, OR...

3. For thermostats with optional sub-base (see
Figure 1), or for systems with relay box, set
system switch to “OFF.”

WARNING:

To prevent hazard of electrical shock
and injury from moving parts, be
certain the thermostat is off and the
furnace circuit breaker(s) are in the
“OFF” position before servicing. Close
and properly latch the outer door after
doing the following recommended
maintenance.

MAINTENANCE INSTRUCTIONS

Regularly
NOTE: If a cooling coil is installed, furnace

fi lter is not used.

1. Replace furnace air fi lter (see Figure 1),
OR...

2. Remove coil fi lters, wash, and allow to dry.
Re-install coil fi lters to original positions.

3. Vacuum or wipe clean interior of furnace
cabinet.

4. Clean all lint and dust from around fur­nace.

Every Six Months

1. Vacuum or wipe away any dust or lint on
blower motor.

Before Each Heating Season
NOTE: If a cooling coil is installed, furnace

fi lter is not used.

1. Replace furnace air fi lter (see Figure 1),

OR

2. Remove coil fi lters, wash, and allow to dry.
Re-install coil fi lters to original positions.

3. Have a qualifi ed serviceman inspect all
furnace components and fi eld wiring and
clean and service heating system as
needed. If this furnace was installed with
aluminum power supply wiring, have ser­viceman periodically check all connections
to prevent possible equipment failure and/or
fi re hazard. Do not attempt any service
function yourself which requires opening
furnace control panel covers.

4

BEFORE YOU CALL A SERVICEMAN

1. Make sure thermostat temperature selector
is set above room temperature for heating
or below room temperature for cooling. If
thermostat is equipped with heating/cool­ing sub-base, make sure system switch
(see Figure 1) is set to “HEAT” for furnace
operation or set to “COOL” for optional air­conditioning operation.

2. Check main household service panel to
see if appropriate circuit disconnect(s) for
appliance power supply is on.

3. Refer to instructions under Before Operating
System for pre-operation checks.

4. Refer to instructions under Before Each
Heating Season for maintenance proce­dures and recommended service checks.

5. Refer to owner’s manual provided with
optional air conditioner or heat pump (if
installed) for service and maintenance.

NOTE: All servicing of this heating appliance
other than the normal maintenance described in
this section must be done by authorized trained
service personnel. Do not open the control
panels (see Figure 1) at any time.

Please specify the complete model and serial
numbers shown on the furnace data label (see
Figure 1) for all warranty service and when or­dering replacement parts or optional equipment.
Refer to the replacement parts list provided with
the furnace for part numbers.

OPTIONAL AIR CONDITIONER
AND HEAT PUMP

Your E3 Series electric furnace is approved for
use with an optional central air conditioner or a
heat pump. To adapt this heating appliance to
a “total comfort system,” contact your nearest
NORDYNE distributor.

SECTION 2.
INSTALLER INFORMATION
GENERAL

These instructions and specifi cations are pri­marily intended to assist qualifi ed individuals
experienced in the proper installation of home
heating and air conditioning appliances. Some
local codes require licensed personnel for the
installation and service of this type of equip­ment. Approved installation, operation, and
maintenance of this central heating system
appliance must be in accordance with the listed
specifi cations contained in these instructions
and other documents supplied with the furnace
and/or optional air conditioning equipment. Refer
to local authorities having jurisdiction for further
information.

Before beginning installation, read these instruc­tions thoroughly. Follow all warnings and cautions
in the instructions and on the unit.

Improper installation, service adjustment, or
maintenance can cause explosion, fi re, electri­cal shock or other conditions which may result
in personal injury or property damage. Unless
otherwise noted in these instructions, use only
factory-authorized kits and accessories when
modifying this product.

Overview of E3 Furnace

E3E(-) Series electric furnaces are available in
two models. E3EH models are equipped with the
standard two-speed blower. E3EH models can
be easily converted for use with NORDYNE split­system air conditioners and heat pumps. E3EB
models are air-conditioning ready; that is, they
are equipped with a multi-speed (four-speed)
blower, blower relay, and cabinet insulation kit.
See Table 3 for cooling and heat pump availability
with factory installed blower.

Optional air conditioners and heat pumps are
listed by Underwriters’ Laboratories (UL) or
Environmental Testing Laboratories (ETL) and
certifi ed by ARI and the Canadian Standards
Association (CSA), or Warnock Hersey or ETLC.
These cooling systems include energy-sav­ing components to provide maximum cooling
performance at electrical energy usage levels
established by federal standards. Refer to the
operation instruction label on your furnace for
the optional air conditioning equipment approved
for your heating appliance.

For typical unducted return air downfl ow applica­tions, an air-conditioner or heat-pump coil can be
installed by mounting the coil directly on top of
the furnace without adding sheet metal cavities
or cutting and trimming wood panels.

A return air grille for closet or alcove installations
is available. For downfl ow alcove installations,
the grille (with frame provided) may be attached
to the top of the furnace and all paneling and
trim fl ushed to it. This installation provides an
access door for future installation of NORDYNE
air conditioning or heat pump coils on top of
the furnace.

5

Power entrance for all models may be through the
right side or through the bottom of the unit (when
viewing the unit in a downfl ow position).

UNIT CHECKOUT

Before installing this furnace:

1. Inspect unit for possible shipping damage.
If shipping damage is found, fi le claim with
transportation company.

2. Record furnace model number and serial
number (see furnace data label) for future
reference.

3. Carefully read all instructions supplied with
optional equipment to be installed with
furnace.

CODES, SPECIFICATIONS, AND
REQUIREMENTS

Furnace Codes

Installation and wiring of this furnace, as well as
the design and construction of the home duct
system, must be in accordance with one or more
of the following codes:

• HUD MANUFACTURED HOME CONSTRUC-

TION AND SAFETY STANDARD (Title 24,
Part 3280)

• American National Standards (ANSI) A119.11,
C1-NFPA 7 (National Electrical Code)

• CANADIAN STANDARDS (C.S.A.) Z240.6.1,
and Z240.9.1.

All local codes having jurisdiction shall also
apply.

Air Duct Codes and Specifi cations

Air ducts must be installed in accordance with
National Fire Protection Association standards
NFPA 90A and NFPA 90B, these instructions,
and all applicable local codes.

• Materials: Air ducts must be aluminum,
tin plate, galvanized sheet steel, or other
approved materials for outlet or return air
ducts.

• Construction: Snap-Lock or Pittsburgh-Lock
seams are preferred. All other types of seams
must be made tight to prevent leakage.

• Sizing: Supply duct system must be designed
for proper air distribution. Static pressure
measured externally to furnace shall not ex­ceed static pressure rating listed on furnace
nameplate.

• Location of Openings: Duct system must be
designed so that no supply registers are lo­cated in duct system directly below furnace.

Listing agency(s)

Approved Installation Confi gurations

Accessibility for Servicing Minimum of 18"(46cm) required in front of unit.

Minimum Clearance to
Combustibles

Minimum return air opening
required (total free area)

Return air grille (closet or alcove
installation)

May vary by model, check the unit data label for
applicable agency listing mark.

Approved for: single/multistory residential or mobile/
modular/manufactured structures. Upfl ow, downfl ow,
(freestanding/closet/alcove)

0" from all surfaces of furnace cabinet, ducts, optional
coil housing and plenum connector. No separate
subbase required for installations on combustible
fl ooring.

200 in (1290 cm ) heating only*
235 in (1516 cm ) A/C or H/P up to 4 ton installed
250 in (1613 cm ) A/C or H/P up to 4 ton w/1" clearanced
installed
390 in (2516 cm ) A/C or H/P up to 5 ton installed
*or return air grille and frame assembly p/n 902989 or
wall mount grille p/n 902999

Use return air grille and frame assembly P/N 902989 or
equivalent for alcove installation.
Use wall mount return air grilled P/N 902999 or
equivalent for closet installation.
155 in (1000 cm ) must be added for 5 ton A/C or H/P
system.

Table 1. Miscellaneous Listings & Installation Requirements

6

Return Air Codes and Requirements

Unducted return air systems may be used for
closet or alcove installations.

NOTE: Applicable installation codes may limit the
furnace to installation in a single-story residence
only. Furnace installations other than closet or
alcove installations require ducted return air
systems.

Air return to the furnace must have a minimum
free area opening (see Table 1).

Acceptable fl oor or ceiling return air systems
for closet installations with return air entering
through an opening in the closet fl oor or ceiling
must meet all of the following requirements:

• Return air opening into closet, regardless of
its location, must not be smaller than size
specifi ed on unit data label.

• If located in fl oor of closet, return air opening
must be provided with means of preventing
its inadvertent closure by a fl at object placed
over opening.

• Materials located in return air duct system
must have a fl ame-spread classifi cation of
200 or less.

• Noncombustible pans having 1” upturned
fl anges must be located beneath openings
in a fl oor-return duct system.

• Wiring materials located in retur n duct system
must conform to NEC Article 300-22(c).

• Gas piping must not run in or through return
air duct system.

• If return air opening is located below top
of furnace, a minimum clearance must be
provided between opening and furnace (see
“Accessibility for servicing” in Table 1).

Closed-Off Space Requirements

Living space not served by, and closed off from,
the return air ducts to the furnace by doors, sliding
partitions, and other means must be provided
with permanent, uncloseable openings in the
doors or partitions to allow air to return to the
furnace from all parts of the home. Return air
grilles, with a minimum open area of one square
inch for every fi ve square feet of living space
closed off from the furnace, must be provided
in the door or room partition.

OPTIONAL EQUIPMENT

Contact your nearest NORDYNE distributor for a
complete list of electric furnace accessories.

Return Air Grille

A return air grille and frame assembly (see Figure

2) is available for use in unducted return air instal­lations. In downfl ow alcove installations, the grille
and frame assembly may be mounted directly
to the top of the furnace. In closet installations,
a wall mount grille is available for attachment
to a door or wall.

Optional Automatic Furnace
Damper #901083 -

Furnace may (not required) be equipped with
the optional automatic damper when a packaged
air conditioner is installed and connected to the
warm air duct system. This damper prevents
cooled air from discharging through the furnace
cabinet, causing excessive cooling of the immedi­ate area. Refer to instructions supplied with the
damper for details.

Multi-Speed Blower Conversion
Package (4 or 5 ton):

Upgrade blower packages are available for
adding air conditioning or heat pump systems.
See furnace “Options and Compatibility” label
for systems available.

TYPICAL INSTALLATION OF
DOWNFLOW SYSTEMS OR
PLATINUM SYSTEM

The following steps describe installation instruc­tions for an under-the-fl oor supply duct system
with a return air system that can be either
unducted or ducted. Duct connectors (Table 4)
are recommended for this application.
NOTE: Before installing this furnace, consider all
clearances for the installation and future servicing
of the furnace. Refer to Table 1.

Return Air and Filtering Systems

Furnaces may be installed with unducted or
ducted return air. For unducted return air
systems, either the optional grille and frame
assembly or the optional wall mount grille is rec­ommended. For ducted return air systems with
air conditioners or heat pumps, either providing
an access panel in the duct or using the optional
coil cabinet is recommended. The duct system
must be properly sized so as to account for any
additional external static pressure produced from
the chosen fi ltering method.

7

20" (508 mm)

Cabinet

Insulation

Upflow Coil Cabinet

23 3/4" (603 mm)

29"
(737 mm)

1

2

3

4

7

8

27"
(686 mm)

29"
(737 mm)

20"

(508 mm)

23 3/4"

(603 mm)

Item Number

(See Figure)

Description

4-Speed Blower

1

4 Ton - See notes: 1 & 5
5 Ton - See Note: 1

2
3

4

5

6

A.C./H.P. Relay Control
See Note: 1
Cabinet insulation Kit
See Notes: 1 & 5
A-Coil Conversion Kit
See Note: 2

Coil Cabinet
See Note: 3

Upfl ow Stand
See Note: 4

7 A/C and H/P Indoor Coils
8

Notes:

1) For A/C and H/P use.

2) Includes coil fi lters.

3) For upfl ow or downfl ow installations.

4) For upfl ow A/C or H/P installations (includes one fi lter; use
fi lter from furnace to complete fi ltering system in this acces­sory).

5) Standard in EB models.

Return Air Grille and
Frame

Table 2. Optional Air Conditioning and

Heat Pump Equipment

11/16"

20-1/8"

(511 mm)

3"

(76 mm)

24 3/4” (628 mm)

Figure 3. Optional Rear Mounting Plate

(17 mm)

(P/N 389080)

NOTE: See Table 2 for descriptions

Figure 2. Optional Accessories

8

Upflow Stand

and notes

20” (508 mm)

20”
(508 mm)

Electric Furnace Models

Rated Heating Output, Btuh

(see note 1)

Watts (Total kw, Heating

Elements and Blower)

Supply Voltage 240 Volts/60Hz/1-Phase

Heating Elements,

No.(Total kw)

Blower Wheel Size 10.5" Dia., 8" Wide

Motor Speed,

H.P. Rating, Amps

Test ESP, in. w.c. Max 0.3

Optional Cooling Available with

factory installed blower

Optional Heat Pump Available

with factory installed blower

Air Filter (Standard) 16" x 20" x 1" (nominal)

Furnace Dimensions Width-20" (508mm), Height-29" (737mm) (see note 2), Depth-24 1/2" (623mm)

Table 3. Unit Specifi cations

E3EH

010H 012H 015H 017H 020H 023H

35,000 41,000 53,000 57,000 70,000 75,000

10.4 12.0 15.4 16.6 20.4 22.0

2 (10.0) 2 (11.6) 3 (15.0) 3 (16.2) 4 (20.0) 4 (21.6)

2 Speed, 1/5 HP, 2.0

2.0 - 3.0 Ton (see note 3)

2.0 - 3.0 Ton (see note 3) n/a (see note 3)

Electric Furnace Models

Rated Heating Output, Btuh

(see note 1)

Watts (Total kw, Heating

Elements and Blower)

Supply Voltage 240 Volts/60Hz/1-Phase

Heating Elements,

No.(Total kw)

Blower Wheel Size

Motor Speed,

H.P. Rating, Amps

Test ESP, in. w.c. Max 0.3

Optional Cooling Available with

factory installed blower

Optional Heat Pump Available

with factory installed blower

Air Filter (Standard) 16" x 20" x 1" (nominal)

Furnace Dimensions Width-20" (508mm), Height-29" (737mm) (see note 2), Depth-24 1/2" (623mm)

Electric Furnace Models

Rated Heating Output, Btuh

(see note 1)

Watts (Total kw, Heating

Elements and Blower)

Supply Voltage 240 Volts/60Hz/1-Phase

Heating Elements,

No.(Total kw)

Blower Wheel Size 10.5" Dia., 8" Wide

Motor Speed,

H.P. Rating, Amps

Test ESP, in. w.c. Max 0.3

Optional Cooling Available with

factory installed blower

Optional Heat Pump Available

with factory installed blower

Air Filter (Standard) 16" x 20" x 1" (nominal)

Furnace Dimensions

1. Heating output rated at listed voltage. For outputs at voltages other than 240V, multiply Btuh rating by the following
factors: x 0.92 (230V), x 0.84 (220V), x 0.75 (208V)

2. Height is 56” with return air grille installed, 58” with coil cabinet and 72” with coil cabinet and upfl ow stand.

3. The factory installed blower for the EH models can be replaced with a multi-speed blower allowing the units to
accept up to 5 tons of air conditioning or 4 tons heat pump.

4. The factory installed blower for the EB models can be replaced with a multi-speed blower allowing the units to
accept up to 5 tons of air conditioning.

010H 012H 015H 017H 020H 023H 023H 5-Ton

35,000 41,000 53,000 57,000 70,000 75,000 75,000

10.4 12.0 15.4 16.6 20.4 22.0 22.0

2 (10.0) 2 (11.6) 3 (15.0) 3 (16.2) 4 (20.0) 4 (21.6) 4 (21.6)

4 Speed, 1/3 HP, 2.9

2.0 - 4.0 Ton (see note 4) 2.0 - 5.0 Ton

010H 012H 015H 017H 020H

35,000 41,000 53,000 57,000 70,000

11.4 13.0 16.4 17.6 21.4

2 (10.0) 2 (11.6) 3 (15.0) 3 (16.2) 4 (20.0)

Multi-Speed, 3/4 HP, 6.0

2.0 - 4.0 Ton

2.0 - 4.0 Ton

Width-20" (508mm), Height-29" (737mm) (see note 2)

Depth-24 1/2" (623mm)

E3EB

2.0 - 4.0 Ton

E3EX

11" Dia.,

8" W

4 Spd,

3/4HP 3.8

Amps

9

NOTE: Refer to the instructions supplied with

A

B

19”

(483 mm)

19"

(483 mm)

TOP VIEW

X

Reducer

*Felt Seal

Corner

Spacers

C

*OPENING TO DUCT
A= 13-1/4" (337 mm)

B= 10-3/4" (274 mm)
WITH PLATE (C) REMOVED
OPENING BECOMES
13-1/4” x 13-1/4”

*Indicates only applicable for Finger Tab Duct Connector

x

SUPPLY AIR DUCT

FLOOR CAVITY

Frame

Top of

Furnace

Fasteners (4)

Grille

Furnace Filter

(not used with

A/C or H/P)

any additional accessories for further installa­tion details.

(see Figure 3) supplied with the duct connec­tors is recommended for use with this type of
installation.

Filtering Methods - Non-Ducted Return Air

1. Without A/C or H/P uncased coil:

- use the fi lter supplied with the furnace;
ensure that the fi lter is installed mat side
down between the fi lter retainer and furnace
top (see Figure 4).

2. With A/C or H/P uncased coil:

- use the optional coil fi lters; the fi lter sup­plied with the furnace is not used; REMOVE
AND DISCARD THIS FILTER.

3. With optional coil housing:

- see coil cabinet instructions for specifi c
fi ltering methods.

Filtering Methods - Ducted Return Air

1. Without optional coil housing:

- install a fi lter with a minimum unrestricted
medium area of 324 square inches in the
duct above the coil that is accessible for
monthly cleaning or replacement by hom­eowner.

2. With optional coil housing:

-install a fi lter with a minimum unrestricted
medium area of 324 square inches in the
duct above the coil that is accessible for
monthly cleaning or replacement by hom­eowner.

Selecting Duct Connector

Non Platinum Duct Connector

1. Determine depth of fl oor cavity from surface
of fl oor to top of supply air duct (see Figure

5).

2. Select appropriate model from Table 4
which matches X-dimension of fl oor cavity.
To maximize air delivery, remove reducer
(C in Figure 5) to obtain largest open area
that will fi t duct/fl oor construction.

NOTE: Duct connectors may be

installed in any one of four positions.

Platinum Duct Connector

1. The 14” round duct connector (903896) is
designed to connect directly to a 14” fl ex­duct.

Optional Duct Connectors for
Downfl ow Systems

Duct connectors are recommended for heated
air distribution in under-the-fl oor duct systems.
With this system, furnaces may be installed on
combustible fl ooring without a separate sub­base. Also, the furnace rear mounting plate

10

Figure 5. Duct Connector Selection (Non-Platinum)

Figure 4. Grille Support Frame and Grille

Assembly

Preparing Floor Opening(s)

2-3/8" MIN
(60 mm)

"

6-1/4

23-3/4"

(603 mm)

20

"

3/4"

"10

14-1/2"

(368 mm)

3" (76 mm)

"4-1/4 "5

"3-3/8

REAR WALL OF ENCLOSURE

Furnace Outer
Door

Optional Supply Wire

Entrance

Optional

Refrigerant

Line

(Not required

for Platinum)

Center Line

17"

(432 mm)

14-1/2"

(368 mm)

16-5/8"

(422 mm)

(254 mm)

(86 mm)

(127 mm)

(108 mm)

(159 mm)

(19 mm)

(508 mm)

3-3/4"

(95 mm)

Furnace
Outline

A/C Or HP

1. Mark fl oor opening(s) as shown in Figure

6. Provide minimum clearances at rear
and right side walls of closet or alcove for
installation of furnace and wiring.

2. Cut fl oor opening on outside edge of marked
line so that opening is slightly larger than
area marked.

3. Additional provisions may be necessary
for optional air conditioning or heat pump
if refrigerant lines are installed elsewhere
than at the front of the furnace.

4. The refr igerant and entrance supply opening
dimensions may be adjusted ± 1/2”.

Installing Duct Connector

NOTE: The duct connector is designed for use

on ducts down to 12” wide. On typical ducts,
the fi nger tab duct connector may be installed
using Method B. On narrow ducts, there may be
insuffi cient clearance to bend the tabs on two
sides of the fi nger tab duct connector. In such

If "X"

fl oor cavity is:

English

Metric

(mm)

Use Duct Connector

Model Part Number
Finger

Tab

Screw

Down

7/8" 22 901987 904008

2" 51 901988 904009
4 1/4" 108 901989 904010
6 1/4" 159 901990 904011
8 1/4" 210 901991 904012

10 1/4" 260 901992 904013
12 1/4" 311 901993 904014

Table 4. Floor Cavity Sizes

cases, use Method C or D. For screw down duct
connector use method E. For Platinum models
always use method A.

Method A - Platinum Series

NOTE: Flex duct used must have a minimum

temperature rating of 200

° F and meet all

other applicable codes and standards.

1. Place duct connector through opening in
fl oor. See Figure 9.

2. Connect 14” supply duct.

Figure 6. Downfl ow Floor Cutout Locations (nominal dimensions)

11

Rear Wall

Cut-out Area

Optional Supply
Entrance

Mounting
Plate

Floor
Opening

Refrigerant
Line
Opening

Supply Air Duct

Cut Duct Opening
1/16th. Larger Than
Plenum Connector

Rear Wall

Secure Duct Connector &
Mtg Plate With 2 Flat Head Screws
or Nails At Dimpled Locations

Refrigerant
Line
Opening

Supply Air Duct

Mounting
Plate

Plenum

Bend Connector Tabs
Under Duct Opening

Figure 7. Rear Mounting Plate

Figure 8. Duct Connector (Non Platinum)

Method B

1. Place duct connector through fl oor opening
with bottom tabs resting on top of supply
air duct. Mark cutout area around inside of
tabs.

2. Remove duct connector and cut out duct
opening slightly larger than area marked.

3. If using optional rear mounting plate (sup­plied with duct connector), install it to back
edge of fl oor opening (see Figure 7). Re­install duct connector in fl oor opening. A
shim may be used, if necessary, to ensure
the furnace is level.

12

4. Secure duct connector to fl oor with two
fl at-head fasteners at dimpled locations
(see Figure 8).

5. Secure connector to duct by bending bottom
tabs under and up against duct surfaces
(see Figure 10).

Method C

1. Attach tabs to sides of duct (one on each
side) using sheet metal fasteners or other
method, ensuring that the duct connector is
secure and sealed to the duct (see Figure

11).

2. Seal the duct fl ap edges with an approved
tape or compound for a leak-free joint.

Figure 9. Platinum Duct Connector

Mounting Plate

Duct

Connector

Secure Duct Connector and Mounting
Plate with 2 Flat-Head Screws or Nails

14" Supply Connection

TABS

DUCT

1. INSERT DUCT CONNECTOR
INTO DUCT CUT-OUT

TABS

DUCT

2. BEND BOTTOM TABS OVER
AND ONTO THE UNDER-

NEATH DUCT SURFACE

Method D

1. Score and cut top of metal duct as indicated
in Figure 12, Step 1 or Step 2. If using Step
1, also cut out metal from the shaded area
“A”.

2. Fold the duct fl ap “B” up (see Figure 12,
Step 3).

3. At the front-to-back of duct run (see Figure
12, area “A”), bend the duct connector tabs
and secure them directly to the duct.

4. At area “B”, bend the duct connector tabs up
and back over, around the duct connector
(see Figure 12, step 3).

5. Fold/form the duct fl ap against the side of
the duct connector and attach as shown
(see Figure 12, Step 4). Use at least three
staples on each duct fl ap OR... if a 2X
block/joist is not provided, use at least two
sheet metal fasteners on each duct fl ap.

6. Seal the duct fl ap edges with an approved
tape or compound for a leak-free joint.

Method E

1. Apply a bead of caulking, mastic, or other
approved sealant around bottom side of
1/2” fl ange and restrictor plate, when ap­plicable.

Figure 10. Duct Connector Installation B

13

2. Locate the duct connector over duct and

Staple Folded Duct

Flap (typ) to side of

Duct Connector

Duct

STEP 4.

Cut- Out
Area "A"

STEP 1.

"B"

"B"

Cut- Out

Area"A"

Fold Back Flap "B"

Fold Back Flap "B"

Top of Duct

"A" "A"

"B"

"B"

Fold Back Flap"B"

Cut

Lines

Duct

Fold Back Flap"B"

STEP 2.

STEP 3.

Bend Duct Connector Tabs Up

and Over- (along length of duct)

Duct
Flap "B"

Duct

Duct

Duct Connector

Narrow Duct

carefully lower screw down duct connector
into place.

3. Once duct connector is located on duct,
temporarily hold in place while fastening
duct connector to the fl oor using fl at head
screws or nails. Be sure fl anges of duct
connector stay in contact with the duct.

4. Screw duct connector to duct making sure
a seal is made between the duct and the
duct connector. Additional screws may be
added if required.

5. Cut away duct along edge of duct connector
fl ange allowing the center to drop into the
duct. Remove section of duct with caution,
as edges will be sharp.

Alcove Installation

1. Cut alcove rough openings to minimum
dimensions shown in Figure 13.

2. Attach frame assembly with four fasteners
(provided or equivalent) into pre-punched
holes on top of furnace (see Figure 5).

3. At manufacturers discretion, if additional
securing is required attach each side of
frame assembly to alcove opening using
holes provided.

4. Attach return air grille to frame assembly by
hooking grille over fl ange on top of frame
and into channel on bottom.

Closet Installation

NOTE: For closet installations, the return air

grille mounting frame is not used since the
furnace is located inside the closet (see Figure
14 and 15).

1. Cut return air opening in desired position
in door or wall, preferably above top of fur­nace. Refer to Table 1 for return air opening
requirements.

2. Insert four fasteners, securing grille to door
or wall.

Figure 11. Alternate Duct

Connector Installation C

Furnace Installation

1. Install 240V supply circuit(s) and 24V wir­ing to closet or alcove (see Figure 16 for
appropriate locations).

14

Figure 12. Alternate Duct Connector Installation D

Furnace

Front

18"
Nearest
Wall or
Partition

Holes (4)

Wall-Mount

Return Air Grille

Coil Air

Filters

Wall

Panel

A/C or H/P

Coil

24 3/4"

(629 mm)

Return

Air

Grille

27"

(686 mm)

(1423 mm)

29"

( 737 mm)

56"

Closet

20"

Floor

(508 mm)

Figure 13. Typical Alcove Installation Figure 14. Typical Closet Installation

Door

2. Remove refrigerant line knockouts in fur­nace only when installing indoor coil of an
air conditioner or heat pump system, or for
hook-up of a VentilAire accessory when
the furnace is used in the upfl ow position.
Refer to instructions supplied with accessory
equipment.

3. Remove unit front door and slide back until
bottom slots in rear of unit engage with both
tabs of optional rear mounting plate, OR...
If mounting plate is not used, an equivalent
method of securing the rear of the unit may
be used as long as it prevents displacement
during transport if used in a manufactured
home.

NOTE: The furnace does not need to be hard
up against the rear mounting plate. The tabs will
engage into the slots and allow approximately
1/2” of furnace adjustment front to back and
right to left.

4. Secure front of unit with one or more fas­teners at mounting hole(s) provided or at
tie-down tab (see Figure 16).

5. See Electrical System Installation to com­plete furnace installation.

Provide min. 235
sq. in. (1516 cm )
open free area in
front or side wall
or in top of
closet door

0" Side
Clearance
to Furnace
Cabinet

6"

(152 mm)

Standard Closet Installation

Provide min. 250
sq. in. (1613 cm2 )
open free area in
front or side wall
or in top of
closet door

0" Side
Clearance
to Furnace
Cabinet

1"

(25 mm)

CLOSET DOOR

TYPICAL INSTALLATION OF
UPFLOW SYSTEMS

The following steps describe installation instruc­tions for an overhead supply duct system with a
return air system that can be either over the fl oor
(unducted) or through the fl oor (ducted).

CLOSET DOOR

Special 1" Clearance

Figure 15. Closet Installation

15

Low Voltage Wire Entrances

Power

Supply

Wire

Entrances

Blower Selector

Switch (EH Only)

Refrigerant
Line
Knockouts

Low Voltage
Wire Entrances

Refrigerant

Line Knockouts

Blower Selector

Switch (EH Only)

DOWNFLOW INSTALLATION UPFLOW INSTALLATION

Power
Supply
Wire
Entrances

Tie-Down Tab

(See Inset)

Tie Down Tab

Figure 16. Downfl ow and Upfl ow Installations

NOTES:

• Before installing this furnace, consider all

clearances for the installation and future
servicing of the furnace. Refer to Table 1.

• The 2 Wire Relay Control is NOT recom-

mended for upfl ow applications, instead, the
AC/HP Relay Control (4-7 wire) should be used
when converting some models to accept an
air conditioner. See Relay Control installation
instructions for further details.

Upflow Duct
Connector

Furnace

Filter
(one obtained

Upflow Stand

Figure 17. Over-the-Floor Return Air Sys-

tem with Upfl ow Stand

from furnace)

Return Air and Filtering Systems

Furnaces may be installed with unducted or
ducted return air. For unducted systems with
air conditioners or heat pumps, the following
optional equipment is recommended: upfl ow
stand, coil cabinet, upfl ow duct connector, and
wall mount grille. For ducted systems with air
conditioners or heat pumps, the following optional
equipment is recommended: coil cabinet and
upfl ow duct connector.

NOTE: Refer to the instructions supplied with
any additional accessories for further installa­tion details.

Filtering Methods - Non-Ducted Return Air

1. Without optional upfl ow stand: (see Figure

18)

-install a fi lter with a minimum unrestricted
medium area of 324 square inches below
the coil cabinet/furnace assembly that is
accessible for monthly cleaning or replace­ment by the homeowner

2. With optional upfl ow stand: (see Figure 17)

Stand must use two fi lters; one is supplied

with the stand and the other MUST be
removed from the furnace and placed in
the stand - see upfl ow stand instructions
for additional details.

Filtering Methods - Ducted Return Air

1. Install a fi lter with a minimum unrestricted

medium area of 324 square inches below
the coil cabinet/furnace assembly that is
accessible for monthly cleaning or replace­ment by the homeowner

16

Applications and Furnace

Coil Cabinet

Air Filter

Braced
Mounting
Platform

Front
Grille

Non-combustible
Pan or
Enclosure

WALL

FLOOR

Installation

NOTE: Remove refrigerant line knockouts in

furnace only when installing indoor coil of an
air conditioning or heat pump system.

Refer to instructions supplied with accessory
equipment.

Over-the-Floor Return Air System
(Non-Ducted)

1. If fl oor underneath furnace is made of com­bustible material, locate a pan fabricated of
non-combustible material with 1” upturned
fl anges under furnace return air opening (see
Figure 18).

2. Use optional upfl ow stand with fi lters or con­struct a suitably braced mounting platform
in closet (see Figure 17 or 18).

3. Install 240V supply circuit(s) and 24V wir­ing to closet (see Figure 16 for appropriate
locations).

4. Position optional coil cabinet onto upfl ow
stand or mounting platform and secure with
three or more fasteners.

5. Position furnace in upfl ow mode onto coil cabi­net and secure with two or more fasteners.

6. Use optional upfl ow duct connector or fi eld
supplied connector to attach furnace to
overhead supply duct. (see Figure 17)

7. Install return air grille in closet preferably
at same level as upfl ow stand or below
mounting platform (see Figure 18).

NOTE: Be certain to provide an adequate free
return air area as described under Return Air
Codes and Requirements and Closed-Off Space
Requirements.

3. Install 240V supply circuit(s) and 24V wir­ing to closet (see Figure 16 for appropriate
locations).

4. Position optional coil cabinet over fl oor cutout
and secure with three or more fasteners.

5. Position furnace onto coil cabinet and secure
with two or more fasteners.

6. Use optional upfl ow duct connector or fi eld
supplied connector to attach furnace to
overhead supply duct (see Figure 17).

ELECTRICAL SYSTEM
INSTALLATION

WARNING:

To avoid the risk of electrical shock,
personal injury or death, disconnect
all electrical power to the unit before
performing any maintenance or
service. The unit may have more than
one electrical power supply.

Codes, Specifi cations, and Re­quirements

The wiring, installation, and electrical hookup
of this furnace must comply with the National
Electrical Code (or the Canadian Electrical Code)
and all regulations of local authorities having
jurisdiction. See Table 9a & 9b for minimum circuit
ampacity, maximum over-current protection, and
recommended wire size. See the unit wiring
diagram for other wiring details.
Supply-circuit requirements are as follows:

Through-the-Floor Return Air System
(Ducted)

1. Prepare Floor Opening(s):
a. Mark fl oor opening(s) as shown in Figure

19. Provide minimum clearances at rear
and left side walls of closet for installation
of furnace and wiring.

b. Cut fl oor opening on outside edge of

marked line so that opening is slightly
larger than area marked.

c. Additional provisions may be necessary

for optional air conditioning if refrigerant
lines are installed other than at the front
of the furnace.

2. If return air duct is made of combustible

material, locate a pan fabricated of non­combustible material with 1” upturned
fl anges under furnace return air opening.

Figure 18. Over-the-Floor Return Air

System

17

1 3/4" MIN

(45 mm)

23 3/4"

(604 mm)

3/4"

(20 mm)

20"

(508 mm)

17 1/2"

(445 mm)

14"
(356 mm)

5 3/4"

(147 mm)

3 1/8"

(80 mm)

3"

(73 mm)

Furnace

Outer Door

For Optional
A/C Or H/P

REAR WALL OF ENCLOSURE

CENTER LINE

Furnace
Outline

18 5/8"
(474 mm)

Figure 19. Upfl ow Floor Cutout Locations (nominal dimensions)

• -010 model is factory-wired for single-branch
supply circuit only.

• -012 models are factory-wired for single­branch supply circuit (single-circuit kit in­stalled). Dual-branch circuit can be used by
removing factory-installed single-circuit kit
(see Figures 20 and 21).

• -015, -017, -020 and -023 models are
factory-wired for dual-branch supply circuit.
Single-branch circuit can be used by
installing optional single-circuit kit .

IMPORTANT:

Note: Circuit breakers installed within
this unit are for short-circuit
protection of the internal wiring
and to serve as a disconnect. Circuit
breakers installed within this unit DO
NOT provide over-current protection
of the supply wiring and therefore may
be sized larger than the branch circuit
protection.

18

Connecting Supply Service Wires

1. Remove right-hand control panel (when
viewing in downfl ow position).

2. Locate power supply hole plugs in side
of unit and in bottom of unit. Remove
appropriate plug(s) or knockout opening
applicable to recommended wire size(s).

3. Install listed cable connector(s) in opening(s).
If metal-sheathed conduit is used for incom­ing power line(s), provide an approved metal
clamp on conduit and secure it in entrance
knockout.

4. Insert supply service wire(s) through cable
connector(s) and connect wires to circuit
breakers (Figures 20 and 21).

NOTE: To install single-circuit kit, perform

step 5. If single-circuit kit installation is not
necessary, go to step 6.

5. To install single-circuit kit:
a. Loosen lugs at supply side of circuit

breakers.

b. Remove cover from single-circuit kit (if

supplied).

c. Insert metal buss bars of kit into lugs of

circuit breaker.

d. Tighten lugs securely (45 in.-lbs. recom-

mended).

Optional
Single Circuit
Adaptor Kit

Circuit Breaker

Bracket

60A

60A

ON

ON

OFF

OFF

Circuit

Breaker

Wire

Assemblies

(Factory

Installed)

Supply Service
Wire Connection
With Single Circuit
Adaptor Kit

6. Connect ser vice ground wire(s) to grounding
lug(s) provided. One ground is required for
each supply circuit used.

WARNING:

To avoid personal injury or property
damage, make certain that the motor
leads cannot come into contact with
non-insulated metal components of
the unit.

Blower Installation:

1. Turn off all electrical supply circuits to the
furnace at the main service panel.

2. Remove furnace front door and switch
furnace circuit breaker(s) to “OFF”.

3. Disconnect the motor plug from the control
panel receptacle.

4. Remove one screw from left side of blower
and three screws from right side of blower;
slide blower forward and remove.

5. Install new blower ensuring the side fl anges
engage under side mounting tabs (three on
one side, one on the other) and the long tab
in the rear.

6. Replace screws previously removed from
blower.

7. Connect the motor plug to the control panel
receptacle.

8. Switch circuit breaker(s) to “ON”, reinstall
furnace front door, and turn on electrical
supply circuits to the furnace.

Selecting Blower Speed

See Table 5 for the lowest speed approved for
the heating output of the unit. Since the blower
leads connect to the control box, blower speed
selection is accomplished through use of the
proper color-coded blower lead located inside
the control box. The speed(s) set by the factory
may be different from that shown on the wiring
diagrams. See the unit control box for blower
speed(s) set at factory.

Figure 20. Installation of Optional Single Circuit Adaptor Kit

Breaker

Assemblies

(Factory

Installed)

Circuit Breaker

Bracket

Circuit

Wire

Figure 21. Installation of Supply Service Wires

60A

OFF

ON

60A

OFF

ON

Supply Service

Wire Connection

Without Single
Circuit Adaptor Kit

19

IMPORTANT:

If a relay box is installed, blower
speeds for heating and cooling are set
inside the relay box (see instructions
included with relay box). The blower
speed inside the furnace control box
must be set to low or medium-low.
Never change to a heating speed lower
than that shown in Table 5.

Changing Blower Speed

E3EH: The selected heating blower lead is at-

tached to the wire lead attached to terminal 2
of the blower selector switch.
a. Remove blower lead from the wire lead off

of terminal 2.
b. Choose desired speed.
c. Attach new blower lead to wire lead off

terminal 2 of blower selector switch.

E2EB: The selected heating blower lead is at­tached to terminal 6 on blower relay. The selected
cooling blower lead is attached to terminal 4 on
blower relay.
a. Remove heating blower lead from terminal

6 on blower relay.
b. Choose desired speed and install new

blower lead onto terminal 6 of blower relay

for new heating speed.
c. Remove cooling blower lead from terminal

4 on blower relay.
d. Install new blower lead onto terminal 4 of

blower relay for new cooling speed.

E3EX: The selected heating blower lead is at­tached to terminal 6 on blower relay and is the
red wire attached to the motor pin terminals 1-3.
The selected cooling blower lead is attached to

terminal 4 on blower relay and is the blue wire
attached to the motor pin terminals 1-3.

a. Remove heating and cooling leads from

motor terminals 1-5.

b. Choose desired speeds and seat terminal

back into motor terminals 1-5.

Same Speed, Heating and A/C: Use loose
white jumper wire supplied with unit and jumper
between terminals 5 & 2 on blower relay. On
E3EX, remove one wire from motor terminals
1-5, while leaving one wire on the required
blower speed.

See Table 6 for blower performance data.

Installing Control Circuit Wiring

NOTE: Installation of a fi ve-wire thermostat

circuit is recommended to provide for future
addition of a heat/cool thermostat.

1. Install the 24V control-circuit cable through
plastic bushing at either side of furnace.

a. For models without a relay box, connect

wires to furnace at blower plug pigtails (see
wiring diagrams). Secure all connections
with wire nuts.

b. For units with a relay box installed, make

wiring connections at relay box low-voltage
terminal board. (See relay box installation
instructions.)

2. Route control circuit wiring to wall
thermostat and outdoor section, if installed.
(See relay box installation instructions if
applicable.)

3. Set anticipator per Table 7 or per the mark­ing on the unit.

4. See Figure 31 (non-Platinum) and Figure
32 (Platinum) for E3EB thermostat connec­tions.

20

Plug/Receptacle Position Pin1 Pin2 Pin3 Pin4 Pin5

2 Speed Blower Low High - - ­4 Speed Blower Low Med-LO Med-Hi High ­Control Box Blower Lead Red Yellow Blue Black -

Minimum approved speed

for 010 and 012 models

Multi-Speed, E3EX Low Med-Lo Med Med-Hi High

Table 5. Furnace Blower Speed Data

Minimum approved speed
for 015, 017, 020, 023
models

SYSTEM CHECKOUT
Checking Installation

1. Refer to appropriate wiring diagram and
recheck all wiring connections. Ensure that
all connections are tight.

2. Check blower motor and relay box con­nectors for proper connection.

3. Reinstall control box cover(s).

4. Switch circuit breaker(s) to “ON” position.

5. Set furnace blower selector switch (see
Figure 16) to “AUTO” (EH Units only).

6. Replace outer furnace door.

7. Check all duct connections and tape for air
leakage.

Standard E3EH Blower
with Filter, @ 0.3" ESP

Pin No. Speed CFM

#1 Low 840

#2 High 1160

4-Ton Blower with Coil and
Coil and Filters, @ 0.3" ESP

Furnace

Model

Thermostat

Anticipator Setting

010, 012 0.2

015, 017, 020, 023 0.4

Table 7. Anticipator Settings

ALL MODELS CLOSET ALCOVE

Front ** 6" 18"
Back 0" 0"
Sides 0" * 0" *
Top 0" 0"
Top and Sides of Duct 0" 0"
Bottom of Duct 0" 0"

** Service Clearance
* For upfl ow application using upfl ow stand, 1” minimum per

side.

Table 8. Clearances

Pin No. Speed CFM

#1 Low 880

#2 Med.-Low 1170

#3 Med.-High 1310

#4 High 1460

5-Ton Blower, with Coil and
Coil Filters, @ 0.3" ESP

Pin No. Speed CFM

#1 Low 990

#2 Med.-Low 1320

#3 Med.-High 1620

#4 High 1790

Multi-Speed, X13, Blower, with
Coil and Filters, @ 0.3" ESP

Pin No. Speed CFM

#1 Low 880

#2 Med.-Low 1000

#3 Med 1170

#4 Med.-High 1260

#5 High 1460

Table 6. Blower Performance

21

Model

Number

E3E(*)

-010H

-012H

-015H

-017H

-020H

-023H

Model

Number

E3EX

-010

-012

-015

-017

-020

Replacement furnace for E2E(*)-015HB

E2E(*)-

015HBR

Supply

Circuit

Single 45.5 60 57 4 6 10

Single 52.1 70 65 4 6 8
Dual "A" 28.0 40 35 8 8 10
Dual "B" 24.2 30 30 10 10 10

Single 66.3 90 83 2 4 8
Dual "A" 45.5 60 56 4 6 10
Dual "B" 20.8 30 26 10 10 10

Single 71.3 90 89 2 4 8
Dual "A" 48.8 60 60 4 6 10
Dual "B" 22.5 30 28 10 10 10

Single 87.1 125 109 0 2 6
Dual "A" 45.5 60 57 4 6 10
Dual "B" 41.7 60 52 4 6 10

Single 93.8 125 117 0 2 6
Dual "A" 52.1 60 60 4 6 10
Dual "B" 41.7 60 56 4 6 10

Supply

Circuit

Single 47.7 60 57 4 6 10

Single 54.3 70 67 4 6 8
Dual "A" 30.2 40 35 8 8 10
Dual "B" 24.2 30 30 10 10 10

Single 66.0 90 83 2 4 8
Dual "A" 46.0 60 57 4 6 10

Dual "B" 20.0 30 25 10 10 10

Single 71.5 90 89 2 4 8
Dual "A" 51.0 60 60 4 6 10
Dual "B" 22.5 30 28 10 10 10

Single 86.0 125 109 0 2 6
Dual "A" 46.0 60 57 4 6 10
Dual "B" 40.0 60 50 4 6 10

Single 67.1 90 83 2 4 8
Dual "A" 35.5 50 44 6 8 10
Dual "B" 31.7 40 39 8 8 10

Total

Amperes

Total

Amperes

* Can be H or B

Maximum

Over-current

Rating

Maximum

Over-current

Rating

Minimum

Circuit

Ampacity

Minimum

Circuit

Ampacity

Copper Wire Size - See

Caution Below

60°C

(e.g., Romex)

Copper Wire Size - See

Caution Below

60°C

(e.g., Romex)

(e.g., SEU)

(e.g., SEU)

90°C

90°C

Ground

Wire
Size

Ground

Wire
Size

Low

Voltage

Thermostat

Wire Size

2-Wire system
maximum wire

lengths:
24 Ga.= 55'
22 Ga.= 90'

20 Ga.= 140'
18 Ga.= 225'

4 or more

Wire systems

maximum wire

lengths:
24 Ga.= 25'
22 Ga.= 45'
20 Ga.= 70'

18 Ga= 110'

Low

Voltage

Thermostat

Wire Size

2-Wire system
maximum wire

lengths:
24 Ga.= 55'
22 Ga.= 90'

20 Ga.= 140'
18 Ga.= 225'

4 or more

Wire systems

maximum wire

lengths:
24 Ga.= 25'
22 Ga.= 45'

Replacement

furnace for

E2E(*)-015HB

CAUTION: When sizing the wire, you must follow the guidelines of the
latest revision of the NEC. NM-B wire is equivalent to “Romex” cable. SEU
is equivalent to service entry cable. For NEC type NM-B wire, you must
size the wire using 60C ratings per NEC article 326.

* Minimum overcurrent protection per NEC 424-3b not to be less than 125%

of total amps for fi xed resistance heat.

Table 9a. Electrical Specifi cations

Circuit "A" Circuit "B"

Model Number

E3E(*)

Wire Gauge

and Type

Breaker

Size

Wire Gauge

and Type

Breaker

Size

-012H #8 NM-B 40 amp #10 NM-B 30 amp

-015H #6 SEU 60 amp #10 NM-B 30 amp

-017H #6 SEU 60 amp #10 NM-B 30 amp

-020H #6 SEU 60 amp #6 SEU 60 amp

-023H #6 SEU 60 amp #6 SEU 60 amp

Replacement furnace for E2E(*)-015HB

E2E(*)-015HBR #8 SEU 50 amp #8 NM-B 40 amp

Table 9b. Recommended Electrical Application Guide

for Dual Circuit Installations**

** Alternate wiring combinations can be used. Refer to the latest revision of the NEC for these

appropriate alternate combinations.

22

Legend:

240V

Cont 1

C

L

IFM

CB-A CB-A

Transformer

LS

Btm - 10.0

ML

12345

IFR

Red

Blue

E

Cont 1

IFR

Cont

1

24V

Red Pig-Tail

White Pig-Tail

IFR

Green Pig-Tail

Grey Pig-Tail

Yellow

MH

H

6

Black

Grey

Org.

White Jumper Wire

(See note 7)

Fuse

CB – Circuit Breaker

E – Heater Element

IFR – Fan Relay

Cont – Contactor

Line

Voltage

Supply

Circuit A

ON

60A

OFF

GRD Ground

RED

RED

CIRCUIT

BLACK

BLACK

– Fan Plug

LS – Limit Switch

IFM – Fan Motor

BREAKER

replaced with 105°C thermoplastic copper wire of

the same gauge.

ground.

5) If any wire in this unit is to be replaced it must be

6) Not suitable for use on systems exceeding 120V to

7) This wire is used with some accessories. See

sizes.

NOTES:

1) See unit data label for recommended supply wire

box refer to installation instructions.

2) Thermostat anticipator setting: 0.20 Amps.

3) To change blower speed on units without a relay

4) Refer to furnace and/or relay box installation for

C

accessory Installation Instructions for further de-

thermostat connections.

WARNING:

RED

6

45

BLACK

GREEN

BLACK

GREY

FUSE

TRANSFORMER

Switch circuit breakers to

the OFF position before

servicing the furnace.

ORANGE

BLOWER

2

5

1

BLUE

RELAY

4

6

3

3

2

1

RED

YELLOW

WHITE

3

6

5

2

RED

L

ML

MH

H

YELLOW

BLUE

4

1

BLACK

BLACK

Figure 26. E3EB 010H Wiring Diagrams

ORANGE

GREEN

240V

COM

VIOLET

GREY

24V

WHITE

TOP ELEMENTS, 10.0 KW

BLACK

CONTACTOR

GREY

2

RED

4

BLACK

1

3

RED

ELEMENTS

LIMITS

RED

23

WARNING:

240V

Cont 1

C

H

L

IFM

CB-A

CB-A

CB-B

CB-B

Transformer

LS

Btm - 11.6

ML

MH

12345

IFR

Red

Yellow

Blue

E

IFR

Cont

1

24V

Red Pig-Tail

White Pig-Tail

IFR

Green Pig-Tail

Grey Pig-Tail

6

Black

Grey

Org.

White Jumper Wire

(See note 7)

E

Fuse

Switch circuit breakers to

the OFF position before

servicing the furnace.

replaced with 105°C thermoplastic copper wire of

the same gauge.

ground.

5) If any wire in this unit is to be replaced it must be

6) Not suitable for use on systems exceeding 120V to

7) This wire is used with some accessories. See

2) Thermostat anticipator setting: 0.20 Amps.

3) To change blower speed on units without a relay

box refer to installation instructions.

4) Refer to furnace and/or relay box installation for

sizes.

NOTES:

1) See unit data label for recommended supply wire

24

tails.

accessory Installation Instructions for further de-

C

thermostat connections.

– Fan Plug

LS – Limit Switch

IFM – Fan Motor

RED

Legend:

CB – Circuit Breaker

E – Heater Element

IFR – Fan Relay

Cont – Contactor

RED

BLACK

BLUE

GREY

GREEN

FUSE

TRANSFORMER

240V

COM

GREY

ORANGE

BLUE

YELLOW

L

ML

MH

H

RED

BLACK

123

456

BLACK

ORANGE

123

456

YELLOW

BLUE

RELAY

BLOWER

4

2

5

6
3

1

RED

WHITE

Figure 27. E3EB 012H Wiring Diagrams

Line

ON

60A

OFF

BLACK

VIOLET

Vol ta ge

Circuit B

GREY

24V

Dual

Supply

Ground

GRD

RED

WHITE

60A

BLACK

Line

Circuit A

ON

OFF

Vol ta ge

Ground

GRD

CIRCUIT

BREAKERS

TOP ELEMENTS, 11.6 KW

BLACK

OR

2

RED

4

1

3

RED

ELEMENTS

GREY

Single

ON

60A

OFF

Supply

LIMITS

BLACK

CONTACTOR

(optional)

ON

60A

OFF

BLACK

RED

Ground

GRD

WARNING:

240V

Cont 1

C

H

L

IFM

CB-A

CB-A

CB-B

CB-B

Transformer

LS

Btm -

5.0/5.4

Top -

10.0/10.8

ML

MH

12345

IFR

Red

Yellow

Blue

E

Cont 1

IFR

Cont 2

LS

Cont

2

Cont

1

24V

Red Pig-Tail

White Pig-Tail

IFR

Green Pig-Tail

Grey Pig-Tail

6

Black

Grey

Org.

White Jumper Wire

(See note 7)

E

Fuse

Switch circuit breakers to

the OFF position before

servicing the furnace.

thermostat connections.

replaced with 105°C thermoplastic copper wire of

the same gauge.

ground.

5) If any wire in this unit is to be replaced it must be

6) Not suitable for use on systems exceeding 120V to

7) This wire is used with some accessories. See

Legend:

accessory Installation Instructions for further de-

C

– Fan Plug

LS – Limit Switch

IFM – Fan Motor

CB – Circuit Breaker

E – Heater Element

IFR – Fan Relay

Cont – Contactor

ORANGE

BLUE

3

2

L

ML

MH

H

YELLOW

1

RED

BLACK

60A

ON

OFF

BOTTOM ELEMENT, 5.0/5.4 KW

(optional)

Single

Supply

ON

60A

OFF

RED

ELEMENTS

LIMITS

WHITE

Ground

GRD

BLACK

Dual

Supply

Line

BLACK

RED

GREEN

ORANGE

3

6

5

4

456

12

RED

BLUE

GREY

RED

WHITE

GREY

BLACK

YELLOW

Circuit B

ON

60A

OFF

Line

Vol ta ge

RED

Ground

GRD

RED

60A

BLACK

Vol ta ge

Circuit A

ON

OFF

BLACK

Ground

OR

GRD

CIRCUIT

BREAKERS

2

RED

ELEMENTS, 10.0/10.8 KW

TOP

BLACK

1

3

4

RED

sizes.

NOTES:

1) See unit data label for recommended supply wire

2) Thermostat anticipator setting: 0.40 Amps.

box refer to installation instructions.

3) To change blower speed on units without a relay

4) Refer to furnace and/or relay box installation for

FUSE

VIOLET

240V

TRANSFORMER

24V

BLACK

COM

BLACK

GREY

WHITE

RELAY

BLOWER

4

2
5

6

1

3

BLACK

Figure 28. E3EB 015H, E3EB 017H Wiring Diagrams

GREY

CONTACTOR

GREY

CONTACTOR

RED

25

IFR – Fan Relay

240V

Cont 2

C

H

L

IFM

CB-A

CB-A

CB-B

CB-B

Transformer

LS

Top -

10.0/11.6/7.6

Btm - 10.0/7.6

ML

MH

12345

IFR

Red

Yellow

Blue

E

E

Cont 2

IFR

Cont 2

Cont 2

LS

Cont

2

Cont

1

24V

Red Pig-Tail

White Pig-Tail

IFR

Green Pig-Tail

Grey Pig-Tail

6

Black

Grey

Org.

White Jumper Wire

(See note 7)

Fuse

E – Heater Element

Legend:

CB – Circuit Breaker

– Fan Plug

IFM – Fan Motor

Cont – Contactor

LS – Limit Switch

replaced with 105°C thermoplastic copper wire of

the same gauge.

ground.

5) If any wire in this unit is to be replaced it must be

6) Not suitable for use on systems exceeding 120V to

7) This wire is used with some accessories. See

accessory Installation Instructions for further de-

WARNING:

!

Switch circuit breakers to

ORANGE

C

L

ML

MH

H

RED

BLUE

YELLOW

the OFF position before

3

2

1

BLACK

servicing the furnace.

56

4

56

4

123

RED

YELLOW

BLUE

WHITE

Dual

Supply

Line

Voltage

Circuit B

ON

60A

OFF

BLACK

RED

BLACK

RED

RED

GREY

ORANGE

GREEN

BLACK

FUSE

VIOLET

GREY

Ground

GRD

RED

WHITE

Line

Circuit A

60A

OFF

RED

BLACK

Voltage

Ground

ON

GRD

CIRCUIT

2

4

RED

TOP ELEMENTS, 10.0/11.6/7.6 KW

CONTACTOR

OR

BREAKERS

BLACK

1

3

RED

ELEMENTS

Single

ON

60A

OFF

BLACK

RED

BOTTOM ELEMENT, 10.0/7.6 KW

Supply

2

4

RED

(optional)

ON

60A

OFF

1

LIMITS

3

ELEMENTS

CONTACTOR

Ground

GRD

BLACK

WHITE

NOTES:

1) See unit data label for recommended supply wire

sizes.

2) Thermostat anticipator setting: 0.40 Amps.

3) To change blower speed on units without a relay

box refer to installation instructions.

Figure 29. E3EB 020H, 023H, and 023H - 5 Ton, E2EB-015HBR Wiring Diagrams

26

4) Refer to furnace and/or relay box installation for

thermostat connections.

240V

RELAY

BLOWER

2

4

5

6

1

3

BLACK

BLACK

TRANSFORMER

GREY

24V

COM

GREY

GREY

BLACK

RED

Figure 30. E3EX 010H

Notes :

1) See unit data label for recommended supply wire sizes.

2) Thermostat anticipator setting : 0.40 Amps

3) To change blower speed on units without a relay box installed refer to installation instructions

4) Refer to furnace and/or relay box installation instructions for thermostat connections.

5) If any wire in this unit is to be replaced it must be replaced with 105° C thermoplastic copper wire of the same gauge.

6) Not suitable for use on systems exceeding 120V to ground.

7) Refer to Installation Instructions for complete wiring diagram.

8) Heating and cooling may be wired on the same speed using the provided jumper wire.

"A" (BOTTOM)

FUSE

GREEN

BLUE

RED

ORANGE
WHITE

BLACK

RED
RED

RED

RED

BLACK

RED

GRAY

BLUE

GRAY

BLACK

WHITE

ORANGE

VIOLET RED

BLUE

RED

WHITE

GRAY

BLACK

RED

BLACK

BLACK

BLACK

CONTACTOR

240V COM

24V

ELEMENTS

LIMIT

T1

T2

T3

T4

T5

G

N

L

C

X13

123
456

123
456

152

463

BLOWER
RELAY

WHITE

GREEN

Notes :

1) See unit data label for recommended supply wire sizes.

2) Thermostat anticipator setting : 0.40 Amps

3) To change blower speed on units without a relay box installed refer to installation instructions

4) Refer to furnace and/or relay box installation instructions for thermostat connections.

5) If any wire in this unit is to be replaced it must be replaced with 105° C thermoplastic copper wire of the same gauge.

6) Not suitable for use on systems exceeding 120V to ground.

7) Refer to Installation Instructions for complete wiring diagram.

8) Heating and cooling may be wired on the same speed using the provided jumper wire.

"A" (BOTTOM)

FUSE

GREEN

BLUE

RED

ORANGE
WHITE

BLACK

RED

RED

RED

RED

BLACK

GRAY

GRAY

BLACK

WHITE

ORANGE

VIOLET RED

WHITE

GRAY

BLACK

RED

BLACK

BLACK

BLACK

CONTACTOR

240V COM

24V

ELEMENTS LIMIT

T1

T2

T3

T4

T5

G

N

L

C

X13

"B" (TOP)

WHITE

123

456

123

456

15

2

4

63

BLOWER
RELAY

RED

BLUE

BLUE

RED

GREEN

Figure 31. E3EX 012H

27

Notes :

1) See unit data label for recommended supply wire sizes.

2) Thermostat anticipator setting : 0.40 Amps

3) To change blower speed on units without a relay box installed refer to installation instructions

4) Refer to furnace and/or relay box installation instructions for thermostat connections.

5) If any wire in this unit is to be replaced it must be replaced with 105° C thermoplastic copper wire of the same gauge.

6) Not suitable for use on systems exceeding 120V to ground.

7) Refer to Installation Instructions for complete wiring diagram.

8) Heating and cooling may be wired on the same speed using the provided jumper wire.

"A" (BOTTOM)

FUSE

RED

GREEN

BLUE

RED

ORANGE

WHITE

BLACK

RED

GRAY

WHITE

WHITE

GRAY

BLACK

WHITE

ORANGE

VIOLET RED

GREEN

WHITE

GRAY

BLACK

RED

BLACK

WHITE

CONTACTOR

240V COM

24V

ELEMENTS LIMIT

ELEMENTS LIMIT

T1

T2

T3

T4

T5

G

N

L

C

X13

(11)

"B" (TOP)

RED

RED

RED

BLACK

BLACK

BLACK

BLACK

BLACK

BLACK

BLACK

RED

RED

RED

123

456

123

456

1

52

4

63

BLOWER
RELAY

RED

BLUE

BLUE

RED

Figure 32. E3EX 015/017H

Notes :

1) See unit data label for recommended supply wire sizes.

2) Thermostat anticipator setting : 0.40 Amps

3) To change blower speed on units without a relay box installed refer to installation instructions

4) Refer to furnace and/or relay box installation instructions for thermostat connections.

5) If any wire in this unit is to be replaced it must be replaced with 105° C thermoplastic copper wire of the same gauge.

6) Not suitable for use on systems exceeding 120V to ground.

7) Refer to Installation Instructions for complete wiring diagram.

8) Heating and cooling may be wired on the same speed using the provided jumper wire.

"A" (BOTTOM)

FUSE

RED

GREEN

BLUE

RED

ORANGE

WHITE

BLACK

RED

GREY

WHITE

WHITE

GREY

BLACK

WHITE

ORANGE

VIOLET RED

GREEN

WHITE

GREY

BLACK

RED

BLACK

WHITE

CONTACTOR

240V COM

24V

ELEMENTS LIMIT

ELEMENTS LIMIT

T1

T2

T3

T4

T5

G

N

L

C

X13

(11)

"B" (TOP)

RED

BLACK

BLACK

BLACK

BLACK

BLACK

RED

RED

123

456

123

456

1

52

463

BLOWER
RELAY

RED

BLUE

BLUE

RED

RED

28

Figure 33. E3EX 020H

5-Wire Thermostat

W Y RC RH G

4-Wire Thermostat

W Y R G

Wire
nuts

White

Grey

Red

E3EB FURNACE Control Wiring

2-Wire Thermostat

W R

Wire
nuts

White

Red

Grey

E3EB FURNACE Control Wiring

Figure 34. E3EB Thermostat Connection

Wire from furnace to Platinum unit

PLATINUM

Red and white
t-stat wire
connected by
OEM

Ye l l o w

Green

Unstripped

Wires

Green

Black

To A/C

Wire
nuts

Wire
nuts

White

Grey

Red

E3EB FURNACE Control Wiring

Heat Pump Thermostat

G R W2 C E O Y

Green

White

Red

Grey

E3EB FURNACE Control Wiring

Typical AC

Green
White
Red
Yellow or Blue

FURNACE

Grey
White
Red
Green

Green

To A/C

To
H/P

Yellow or Blue

RGW

Y

THERMOSTAT

White
Green
Red

Wire from thermostat
to furnace

Platinum installer
disconnects
white and red
t-stat wires

PLATINUM
Grey or Green
White
Orange or Red
Ye l l o w

Wire from furnace to
Platinum unit

Green
White
Red
Yellow or Blue

Typical HP

FURNACE

Grey
White
Red
Green

Yellow or Blue

R

GW

Y

THERMOSTAT

White
Green
Red

Wire from thermostat
to furnace

Figure 35. E3 Furnace Low Voltage Wiring if Installed with Platinum Series Models

29

Furnace Inspection Report

Please Write In Appropriate

Response

Electrical Wiring (If single circuit, write “N/A” in circuit B) Circuit A Circuit B
Breaker Size?
Furnace Wire Size?
Thermostat Wire Size?

Please Circle Appropriate

Response

Electrical
Is the furnace grounded properly? Yes No N/A
Is wiring routed safely with approved connectors? Yes No N/A

Closet Installation
Is front clearance a minimum of 6 inches? Yes No N/A
Is return air opening a minimum of 235 sq. inches? Yes No N/A
Is front clearance less than 6 inches (minimum of 1 inch)? Yes No N/A
Is return air opening a minimum of 250 sq. inches? Yes No N/A
Does the furnace have the 5-ton AC coil installed? Yes No N/A
Is the return air opening a minimum of 390 sq inches? Yes No N/A

Plenum (Base) Connector
Is mounting plate secured properly? Yes No N/A
Is furnace locked and secured in front? Yes No N/A
Is plenum free of debris? Yes No N/A

Has plenum opening been reduced in size to accommodate
offset?
Has plenum spacer been removed if duct size is large enough? Yes No N/A

Testing
Is someone in the plant trained to perform duct tests? Yes No N/A

VentilAire III __ IV__
Is VentilAire duct connected properly to furnace? Yes No N/A
Is depressurization vent (if required) installed properly? Yes No N/A
Is roof assembly installed properly? Yes No N/A
Is roof assembly a minimum of 3 inches from any other vents? Yes No N/A

General
Is fi lter in place? Yes No N/A
Is owner’s packet included? Yes No N/A

Checked storage area for damage to product and proper
storage?
Is installation in accordance with installation instructions? Yes No N/A

Yes No N/A

Yes No N/A

Comments:

30

31

INSTALLER: Do Not Discard These Instructions

After completing the installation, return these instructions

to the Homeowner’s Package for owner-user’s future reference.

Complies with H.U.D. Manufactured Home Construction & Safety Standards.

O’Fallon, MO

¢708827H¤

7088270

7088270

Specifi cations and illustrations subject to change

without notice and without incurring obligations.

Printed in U.S.A. (07/08)