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
flammable 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 qualified 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.
For optional A/C or H/P systems,
always wait at least five minutes after
the system shuts off before restarting
the system. Observe this procedure
when operating the system per the
following instructions.
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.
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 filter
is not used.
1.Replace furnace air filter (see Figure 1),
OR...
2.Remove coil filters, wash, and allow to dry.
Re-install coil filters to original positions.
3.Vacuum or wipe clean interior of furnace
cabinet.
4.Clean all lint and dust from around furnace.
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
4
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 filter
is not used.
1.Replace furnace air filter (see Figure 1),
OR...
2.Remove coil filters, wash, and allow to dry.
Re-install coil filters to original positions.
Page 5
3.Have a qualified serviceman inspect all
furnace components and field 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 fire hazard. Do not attempt any service
function yourself which requires opening
furnace control panel covers.
Environmental Testing Laboratories (ETL) and
certified by ARI and the Canadian Standards
Association (CSA), or Warnock Hersey or
ETLC. These cooling systems include energysaving 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.
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.
Optional air conditioners and heat pumps are
listed by Underwriters’ Laboratories (UL) or
SECTION 2.
INSTALLER INFORMATION
GENERAL
These instructions and specifications are primarily intended to assist qualified 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
specifications 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, fire, 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
split-system air conditioners and heat pumps.
E3EB models are air-conditioning ready; that is,
they are equipped with a multi-speed (fourspeed) blower, blower relay, and cabinet insulation kit. See Table 3 for cooling and heat pump
availability with factory installed blower.
5
Page 6
For typical non-ducted return air downflow
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.
number (see furnace data label) for future
reference.
3.Carefully read all instructions supplied with
optional equipment to be installed with
furnace.
A return air grille for closet or alcove installations
is available. For downflow alcove installations,
the grille (with frame provided) may be attached
to the top of the furnace and all paneling and trim
flushed to it. This installation provides an access door for future installation of NORDYNE
air conditioning or heat pump coils on top of the
furnace.
Power entrance for all models may be through
the right side or through the bottom of the unit
(when viewing the unit in a downflow position).
UNIT CHECKOUT
Before installing this furnace:
1.Inspect unit for possible shipping damage.
If shipping damage is found, file claim with
transportation company.
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 CONSTRUCTION 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.
Accessibility for ServicingMinimum of 18" (46 cm) required in front of unit.
Minimum Clearance to
Combustibles
0" from all surfaces of furnace cabinet, ducts,
optional coil housing and plenum connector.
No separate subbase required for installations on
combustible flooring.
Minimum return air200 in.
opening required (total free area)235 in
250 in
2
(1290 cm2) heating only*
2
(1516 cm2) A/C or H/P up to 4-ton installed.*
2
(1613) cm2 A/C or H/P up to 4 ton w/1"
clearance installed.
2
390 in.
(2516 cm2) 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-
Return air grille
or equivalent for alcove installation.
Use wall mount return air grilled P/N 902999- or
(closet or alcove installation)
equivalent for closet installation.
155 in.
2
(1000 cm2) must be added for
5-ton A/C or H/P system.
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.
• Wiring materials located in return 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 five square feet of
living space closed off from the furnace, must be
provided in the door or room partition.
Return Air Codes and
Requirements
Non-ducted 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 floor or ceiling return air systems for
closet installations with return air entering
through an opening in the closet floor or ceiling
must meet all of the following requirements:
• Return air opening into closet, regardless of
its location, must not be smaller than size
specified on unit data label.
• If located in floor of closet, return air opening
must be provided with means of preventing
its inadvertent closure by a flat object placed
over opening.
• Materials located in return air duct system
must have a flame-spread classification of
200 or less.
• Noncombustible pans having 1" upturned
flanges must be located beneath openings in
a floor-return duct system.
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 non-ducted
return air installations. In downflow 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.
7
Page 8
)
4
23 3/4"
(603 mm)
Cabinet
Insulation
8
Item
Number
7
(See Fig. Description
14-Speed Blower
27"
(686 mm)
4 Ton - See Notes: 1 & 5
5 Ton - See Note: 1
2A.C./H.P. Relay Control
See Note: 1
3Cabinet Insulation Kit
1
2
29"
(737 mm)
3
4"A"-Coil Conversion Kit
5Coil Cabinet
See Notes: 1 & 5
See Note: 2
See Note: 3
6Upflow Stand
See Note: 4
20"
(508 mm)
20" (508 mm)
29"
(737 mm)
Notes:
1) For A/C and H/P use.
2) Includes coil filters.
3) For upflow or downflow installations.
4) For upflow A/C or H/P installations (includes
5) Standard in EB models.
7A/C and H/P Indoor Coils
8Return Air Grille and
Frame Assembly
one filter; use filter from furnace to
complete filtering system in this accessory).
Width-20" (508mm), Height-29" (737mm) (s ee note 2), Depth-24 1/2" (623mm)
E3EX
010H012H015H017H020H
35,00041,00053,00057,00070,000
11.413.016.417.621.4
240 Volts/60Hz/1-Phase
2 (10.0)2 (11.6)3 (15.0)3 (16.2)4 (20.0)
2 Speed, 1/5 HP, 2.0
0.3
2.0 - 4. 0 Ton
2.0 - 4. 0 Ton
Width-20 " (508m m), Height -29" ( 737mm) ( see no te 2), Dept h-24 1/ 2" (623m m)
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 upflow 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.
Table 3. Unit Specifications
9
Page 10
TYPICAL INSTALLATION OF
)
DOWNFLOW SYSTEMS OR
PLATINUM SYSTEM
The following steps describe installation instructions for an under-the-floor supply duct
system with a return air system that can be
either non-ducted 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 non-ducted or
ducted return air. For non-ducted 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 filtering method.
3.With optional coil housing:
- see coil cabinet instructions for specific
filtering methods.
Filtering Methods - Ducted Return Air
1.Without optional coil housing:
- install a filter 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 filter 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.
Optional Duct Connectors for
Downflow Systems
Duct connectors are recommended for heated
air distribution in under-the-floor duct systems.
With this system, furnaces may be installed on
combustible flooring without a separate subbase. Also, the furnace rear mounting plate
NOTE: Refer to the instructions supplied with
any additional accessories for further installation details.
Filtering Methods - Non-Ducted Return Air
1.Without A/C or H/P uncased coil:
- use the filter supplied with the furnace;
ensure that the filter is installed mat side
down between the filter retainer and furnace top (see Figure 4).
2.With A/C or H/P uncased coil:
- use the optional coil filters; the filter supplied with the furnace is not used; REMOVE
AND DISCARD THIS FILTER.
FLOOR CAVITY
x
SUPPLY AIR DUCT
*Felt Seal
Corner
Spacers
Reducer
C
*Indicates only applicable for Finger Tab Duct Connector
*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”
Frame
Fasteners (4)
Grille
Furnace Filter
(not used with
A/C or H/P
Figure 4. Grille Support Frame and Grille
Assembly
TOP VIEW
19”
(483 mm)
A
B
19"
X
(483 mm)
Top of
Furnace
Figure 5. Duct Connector Selection (Non-Platinum)
10
Page 11
(see Figure 3) supplied with the duct connectors is recommended for use with this type of
installation.
Selecting Duct Connector
Non Platinum Duct Connector
1.Determine depth of floor cavity from surface of floor to top of supply air duct (see
Figure 5).
2.Select appropriate model from Table 4
which matches X-dimension of floor cavity.
To maximize air delivery, remove reducer
(C in Figure 5) to obtain largest open area
that will fit duct/floor 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” flexduct.
Cut Duct Opening
1/16th. Larger Than
Plenum Connector
Rear Wall
Optional Supply
Entrance
Cut-out Area
Supply Air Duct
Figure 7. Rear Mounting Plate
Secure Duct Connector &
Mtg Plate With 2 Flat Head Screws
or Nails At Dimpled Locations
Mounting
Plate
Plenum
Refrigerant
Line
Opening
Supply Air Duct
Figure 8. Duct Connector (Non Platinum)
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 refrigerant 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
finger tab duct connector may be installed using
Method B. On narrow ducts, there may be
Rear Wall
Bend Connector Tabs
Under Duct Opening
insufficient clearance to bend the tabs on two
sides of the finger tab duct connector. In such
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
floor. See Figure 9.
2.Connect 14” supply duct.
12
Page 13
Mounting Plate
Duct
Connector
Secure Duct Connector and Mounting
Plate with 2 Flat-Head Screws or Nails
Figure 9. Platinum Duct Connector
Method B
1.Place duct connector through floor 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 floor opening (see Figure 7). Reinstall duct connector in floor opening. A
shim may be used, if necessary, to ensure
the furnace is level.
4.Secure duct connector to floor with two flat-
TABS
14" Supply Connection
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 flap edges with an approved
tape or compound for a leak-free joint.
TABS
DUCT
1. INSERT DUCT CONNECTOR
INTO DUCT CUT-OUT
Figure 10. Duct Connector Installation B
DUCT
2. BEND BOTTOM TABS OVER
AND ONTO THE UNDERNEATH DUCT SURFACE
13
Page 14
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 flap “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 flap against the side of
the duct connector and attach as shown
(see Figure 12, Step 4). Use at least three
staples on each duct flap OR... if a 2X block/
Duct Connector
Narrow Duct
Duct
Figure 11. Alternate Duct
Connector Installation C
joist is not provided, use at least two sheet
metal fasteners on each duct flap.
6.Seal the duct flap 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”
flange and restrictor plate, when applicable.
2.Locate the duct connector over duct and
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 floor using flat head
screws or nails. Be sure flanges 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 flange 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
STEP 1.
Fold Back Flap "B"
Cut- Out
Area "A"
STEP 3.
Bend Duct Connector Tabs Up
and Over- (along length of duct)
"B"
"A""A"
"B"
Fold Back Flap "B"
Duct
Cut- Out
Area"A"
Top of Duct
Duct
Flap "B"
STEP 2.
Fold Back Flap"B"
Cut
Lines
STEP 4.
Staple Folded Duct
Flap (typ) to side of
Duct Connector
"B"
"B"
Fold Back Flap"B"
Duct
Duct
Figure 12. Alternate Duct Connector Installation D
14
Page 15
Coil Air
Filters
Wall
Panel
A/C or H/P
Coil
24 3/4"
(629 mm)
Floor
Furnace
Front
(508 mm)
20"
Return
Air
Grille
27"
(686 mm)
(1423 mm)
29"
( 737 mm)
18"
Nearest
Wall or
Partition
Holes (4)
56"
Wall-Mount
Return Air Grille
Closet
Door
Figure 13. Typical Alcove Installation
(provided or equivalent) into pre-punched
holes on top of furnace (see Figure 5).
3.At manufacturers discretion, if additional
securement 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 flange 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 14. Typical Closet 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)
CLOSET DOOR
Standard Closet Installation
Provide min. 250
sq. in. (1613 cm2 )
open free area in
front or side wall
or in top of
closet door
Furnace Installation
1.Install 240V supply circuit(s) and 24V wiring to closet or alcove (see Figure 16 for
appropriate locations).
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 upflow position.
0" Side
Clearance
to Furnace
Cabinet
1"
(25 mm)
Special 1" Clearance
Figure 15. Closet Installation
CLOSET DOOR
15
Page 16
Low Voltage Wire Entrances
Power
Supply
Wire
Entrances
Power
Supply
Wire
Refrigerant
Line Knockouts
Blower Selector
Switch (EH Only)
Tie-Down Tab
(See Inset)
Entrances
Tie Down Tab
Low Voltage
Wire Entrances
DOWNFLOW INSTALLATIONUPFLOW INSTALLATION
Figure 16. Downflow and Upflow Installations
Refrigerant
Line
Knockouts
Blower Selector
Switch (EH Only)
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.
Upflow Duct
Connector
Furnace
Upflow Stand
Filters
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.
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 floor (non-ducted) or through the floor
(ducted).
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 upflow 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.
Figure 17. Over-the-Floor Return Air
System with Upflow Stand
16
Return Air and Filtering Systems
Furnaces may be installed with non-ducted or
ducted return air. For non-ducted systems with
air conditioners or heat pumps, the following
Page 17
optional equipment is recommended: upflow
stand, coil cabinet, upflow duct connector, and
wall mount grille. For ducted systems with air
conditioners or heat pumps, the following optional equipment is recommended: coil cabinet
and upflow 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 upflow stand: (see Figure 18)
-install a filter 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 upflow stand: (see Figure 17)
-stand must use two filters; one is supplied
with the stand and the other MUST be
removed from the furnace and placed in
the stand - see upflow stand instructions
for additional details.
Filtering Methods - Ducted Return Air
1.Install a filter 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
Applications and Furnace
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.
4.Position optional coil cabinet onto upflow
stand or mounting platform and secure with
three or more fasteners.
5.Position furnace in upflow mode onto coil
cabinet and secure with two or more fasteners.
6.Use optional upflow duct connector or field
supplied connector to attach furnace to
overhead supply duct. (see Figure 17)
7.Install return air grille in closet preferably at
same level as upflow 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.
Through-the-Floor Return Air System
(Ducted)
1.Prepare Floor Opening(s):
a. Mark floor opening(s) as shown in Fig-
ure 19. Provide minimum clearances at
rear and left side walls of closet for
installation of furnace and wiring.
b. Cut floor 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
flanges under furnace return air opening.
Coil Cabinet
Over-the-Floor Return Air System
(Non-Ducted)
1.If floor underneath furnace is made of combustible material, locate a pan fabricated of
non-combustible material with 1" upturned
flanges under furnace return air opening
(see Figure 18).
2.Use optional upflow stand with filters 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).
3.Install 240V supply circuit(s) and 24V wiring to closet (see Figure 16 for appropriate
locations).
4.Position optional coil cabinet over floor
cutout and secure with three or more fasteners.
5.Position furnace onto coil cabinet and secure with two or more fasteners.
6.Use optional upflow duct connector or field
supplied connector to attach furnace to
overhead supply duct (see Figure 17).
(147 mm)
17 1/2"
(445 mm)
5 3/4"
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.
Furnace
Outline
14"
(356 mm)
For Optional
A/C Or H/P
3"
(73 mm)
20"
(508 mm)
Codes, Specifications, 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:
• -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 .
18
Page 19
!
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.
Connecting Supply Service Wires
1.Remove right-hand control panel (when
viewing in downflow 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.
recommended).
6.Connect service ground wire(s) to grounding lug(s) provided. One ground is required
for each supply circuit used.
Circuit Breaker
Circuit
Breaker
Wire
Assemblies
(Factory
Installed)
Bracket
OFF
OFF
60A
60A
ON
ON
Optional
Single Circuit
Adaptor Kit
Supply Service
Wire Connection
With Single Circuit
Adaptor Kit
Figure 20. Installation of Optional Single Circuit Adaptor Kit
Circuit Breaker
Bracket
Circuit
Breaker
Wire
Assemblies
(Factory
Installed)
OFF
OFF
60A
60A
ON
Supply Service
ON
Wire Connection
Without Single
Circuit Adaptor Kit
Figure 21. Installation of Supply Service Wires
19
Page 20
!
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 flanges
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.
!
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
attached 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
Plug/Receptacle PositionPin1Pin2Pin3Pin4Pin5
2 Speed BlowerLowHigh---
4 Speed BlowerLowMed-LoMed-HiHigh-
Control Box Blower LeadRedYellowBlueBlack-
Minimum approved Speed
for 010 and 012 models
Multi-Speed, E3EXLowMed-LoMedMed-HiHigh
20
Minimum approved
speed for 015, 017,
020, 023 model s.
Table 5. Furnace Blower Speed Data
Page 21
to terminal 4 on blower relay and is the blue wire
ALL MODELS
‡ Service Clearance
† For upflow application using upflow stand,
1" minimum per side.
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.
See Table 6 for blower performance data.
Installing Control Circuit Wiring
NOTE: Installation of a five-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-volt-
age terminal board. (See relay box instal-
lation 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 con-
nections.
Standard E3EH Blower
with Filter, @ 0.3" ESP
Pin No.SpeedCFM
#1Low840
#2High1160
4-Ton Blower with Coil and
Coil and Filters, @ 0.3" ESP
Pin No.SpeedCFM
#1Low880
#2Med.-Low1170
#3Med.-High1310
#4High1460
5-Ton Blower, with Coil and
Coil Filters, @ 0.3" ESP
Pin No.SpeedCFM
#1Low990
#2Med.-Low1320
#3Med.-High1620
#4High1790
Multi-Speed, X13, Blower, with
Coil and Filters, @ 0.3" ESP
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
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.
ground.
accessory Installation Instructions for further details.
6) Not suitable for use on systems exceeding 120V to
7) This wire is used with some accessories. See
refer to installation instructions.
thermostat connections.
2) Thermostat anticipator setting: 0.20 Amps.
3) To change blower speed on units without a relay box
NOTES:
1) See unit data label for recommended supply wire sizes.
4) Refer to furnace and/or relay box installation for
WARNING:
RED
E
6
45
BLACK
GREEN
BLACK
GREY
FUSE
ER
TRANSFORM
GREEN
ORANG
240V
COM
!
Switch circuit breakers to
the OFF position before
servicing the furnace.
ORANG
E
ER
W
BLO
2
5
1
BLACK
RELAY
4
6
3
3
2
1
RED
YELLOW
ITE
H
W
3
6
5
2
RED
L
ML
MH
YELLO
W
BLUE
1
BLACK
4
BLACK
Figure 26. E3EB 010H Wiring Diagrams
VIOLET
GREY
24V
HITE
W
TOP ELEMENTS, 10.0 KW
BLACK
R
TACTO
ON
C
REY
1
2
ITS
LIM
3
4
RED
RED
ENTS
ELEM
BLACK
G
RED
27
Page 28
CB-B
CB-A
IFM
Org.
6
C
L
H
ML
MH
LS
1
Cont
IFR
CB-B
E
Blue
Grey
Black
(See note 7)
White Jumper Wire
IFR
CB-A
12345
Red
Yellow
IFR
240V
E
Btm - 11.6
Cont 1
– Fan Plug
LS – Limit Switch
IFM – Fan Motor
Transformer
24V
Fuse
Green Pig-Tail
Grey Pig-Tail
White Pig-Tail
Red Pig-Tail
RED
Line
Voltage
Circuit B
ON
60A
OFF
BLACK
Dual
Supply
Ground
GRD
BLACK
RED
Line
Voltage
Circuit A
ON
60A
OFF
WARNING:
!
Switch circuit breakers to
the OFF position before
Single
Supply
Ground
OR
ON
60A
60A
GRD
CIRCUIT
OFF
BREAKERS
servicing the furnace.
(optional)
Ground
ON
OFF
GRD
Legend:
CB – Circuit Breaker
E – Heater Element
IFR – Fan Relay
Cont – Contactor
with 105°C thermoplastic copper wire of the same
gauge.
ground.
accessory Installation Instructions for further details.
5) If any wire in this unit is to be replaced it must be replaced
NOTES:
1) See unit data label for recommended supply wire sizes.
6) Not suitable for use on systems exceeding 120V to
7) This wire is used with some accessories. See
C
L
ML
MH
H
refer to installation instructions.
thermostat connections.
2) Thermostat anticipator setting: 0.20 Amps.
3) To change blower speed on units without a relay box
4) Refer to furnace and/or relay box installation for
BLUE
YELLOW
RED
BLACK
ORANGE
123
456
BLACK
ORANGE
123
456
RED
YELLOW
BLACK
RELAY
BLOWER
2
4
5
6
3
1
WHITE
BLACK
BLACK
GREY
GREEN
FUSE
TRANSFORMER
RED
GREY
VIOLET
240V
COM
GREY
24V
WHITE
TOP ELEMENTS, 11.6 KW
BLACK
2
RED
4
1
3
RED
ELEMENTS
GREY
LIMITS
BLACK
RED
BLACK
CONTACTOR
28
Figure 27. E3EB 012H Wiring Diagrams
Page 29
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.
– Fan Plug
LS – Limit Switch
IFM – Fan Motor
Legend:
CB – Circuit Breaker
E – Heater Element
IFR – Fan Relay
Cont – Contactor
with 105°C thermoplastic copper wire of the same
gauge.
ground.
accessory Installation Instructions for further details.
5) If any wire in this unit is to be replaced it must be replaced
6) Not suitable for use on systems exceeding 120V to
7) This wire is used with some accessories. See
C
L
ML
MH
H
3
2
1
3
6
5
12
4
BLACK
ORANGE
6
5
4
RED
BLACK
YELLOW
GREEN
GREY
GREY
RED
RED
WHITE
Line
60A
BLACK
Voltage
Circuit B
ON
OFF
Dual
Supply
Line
Voltage
Ground
GRD
RED
Ground
Circuit A
ON
60A
OFF
RED
BLACK
BLACK
TOP ELEMENTS, 10.0/10.8 KW
BLACK
OR
GRD
CIRCUIT
BREAKERS
2
RED
Single
Supply
ON
60A
OFF
1
3
4
RED
RED
BOTTOM ELEMENT, 5.0/5.4 KW
(optional)
ON
60A
OFF
LIMITS
ELEMENTS
Ground
GRD
WHITE
BLACK
refer to installation instructions.
2) Thermostat anticipator setting: 0.40 Amps.
NOTES:
3) To change blower speed on units without a relay box
1) See unit data label for recommended supply wire sizes.
thermostat connections.
4) Refer to furnace and/or relay box installation for
Figure 28. E3EH 015H, E3EB 017H Wiring Diagrams
BLACK
RELAY
BLOWER
4
2
5
6
1
3
WHITE
BLACK
FUSE
GREY
VIOLET
240V
COM
TRANSFORMER
24V
BLACK
GREY
CONTACTOR
GREY
CONTACTOR
RED
29
Page 30
CB-B
CB-B
LS
E
Cont 2
Top -
10.0/11.6/7.6
White Jumper Wire
Cont 2
CB-A
CB-A
IFM
H
Grey
Black
(See note 7)
MH
Blue
IFR
Org.
6
C
ML
Yellow
2
1
L
LS
12345
Red
E
IFR
Btm - 10.0/7.6
Cont 2
Cont 2
240V
Cont
Transformer
24V
Fuse
IFR
Cont
Green Pig-Tail
Grey Pig-Tail
White Pig-Tail
Red Pig-Tail
Line
Voltage
Cont – Contactor
IFR – Fan Relay
E – Heater Element
Legend:
CB – Circuit Breaker
Dual
Supply
Line
Voltage
Ground
Ground
– Fan Plug
IFM – Fan Motor
LS – Limit Switch
Single
Supply
(optional)
Ground
WARNING:
!
Switch circuit breakers to
the OFF position before
servicing the furnace.
ORANGE
C
with 105°C thermoplastic copper wire of the same
gauge.
ground.
accessory Installation Instructions for further details.
6) Not suitable for use on systems exceeding 120V to
7) This wire is used with some accessories. See
L
ML
MH
H
RED
YELLOW
BLUE
3
2
1
BLACK
56
4
56
4
123
RED
YELLOW
BLACK
WHITE
BLACK
GREY
GREEN
RED
FUSE
RED
RED
ORANGE
Circuit B
ON
60A
OFF
BLACK
BLACK
GREY
VIOLET
Circuit A
ON
GRD
60A
GRD
OFF
CIRCUIT
RED
RED
2
4
WHITE
RED
TOP ELEMENTS, 10.0/11.6/7.6 KW
BLACK
CONTACTOR
OR
ON
60A
OFF
BREAKERS
BLACK
BLACK
2
1
4
3
RED
RED
ELEMENTS
BOTTOM ELEMENT, 10.0/7.6 KW
1
3
RED
ELEMENTS
ON
60A
OFF
LIMITS
CONTACTOR
GRD
BLACK
WHITE
refer to installation instructions.
thermostat connections.
2) Thermostat anticipator setting: 0.40 Amps.
3) To change blower speed on units without a relay box
4) Refer to furnace and/or relay box installation for
NOTES:
1) See unit data label for recommended supply wire sizes.
5) If any wire in this unit is to be replaced it must be replaced
Figure 29. E3EB 020H, 023H, and 023H - 5 Ton, E2EB-015HBR Wiring Diagrams
30
BLACK
RELAY
BLOWER
2
4
5
6
1
3
BLACK
240V
TRANSFORMER
COM
GREY
24V
GREY
GREY
BLACK
RED
Page 31
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.
RED
152
BLOWER
RELAY
6
GRAY
RED
GREEN
WHITE
GRAY
WHITE
4
RED
FUSE
3
BLUE
CONTACTOR
123
456
WHITE
BLACK
BLUE
VIOLET
ORANGE
BLACK
BLACK
BLACK
123
456
240VCOM
GRAY
BLACK
BLACK
RED
BLUE
WHITE
BLACK
ORANGE
24V
ELEMENTSLIMIT
RED
RED
RED
RED
RED
T1
T2
T3
X13
T4
T5
G
N
L
C
GREEN/ YELLOW STRIP
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 b
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.
152
BLOWER
RELAY
GREY
RED
GREEN
WHITE
GREY
WHITE
e replaced it must be replaced with 105° C thermoplastic copper wire of the same gauge.
RED
463
RED
FUSE
BLUE
WHITE
CONTACTOR
123
45
BLACK
BLUE
VIOLET
BLACK
BLACK
(25)
6
ORANGE
BLACK
123
45
BLACK
BLACK
(26)
6
240VCOM
24V
GREY
ELEMENTSLIMIT
RED
BLUE
WHITE
BLACK
ORANGE
RED
RED
RED
RED
RED
T1
T2
T3
X13
T4
T5
G
GREEN/ YELLOW STRIP
N
L
C
Figure 31. E3EX 012H
31
Page 32
Models: E3EX - 015/017H
Notes :
1) See unit data label for recommended supply wire sizes.
2) Ther mostat 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.
1
364
WHITE
GREY
GREY
WHITE
GREEN
52
BLOWER
RELAY
RED
RED
BLUE
(25)
FUSE
RED
GREY
1 2 3
456
WHITE
VIOLET
CONTACTOR
BLACK
BLUE
BLACK
BLACK
BLACK
ORANGE
BLACK
1 2 3
456
BLACK
BLACK
BLACK
GREY
(26)
240VCOM
24V
GREY
RED
BLUE
ORANGE
BLACK
WHITE
RED
RED
RED
ELEMENTSLIMIT
RED
ELEMENTSLIMIT
RED
RED
T1
G
GREEN/ YELLOW STRIP
T2
N
T3
X13
L
T4
C
T5
RED
Figure 32. E3EX 015/017H
Models: E3EX - 020H
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.
1
GRAY
GRAY
WHITE
RED
GREEN
WHITE
63
RED
BLUE
52
BLOWER
RELAY
4
RED
FUSE
RED
(25)(26)
123
456
WHITE
BLACK
CONTACTOR
GRAY
BLACK
BLUE
VIOLET
ORANGE
123
456
GRAY
240VCOM
GRAY
BLACK
BLACK
BLACK
BLACK
BLUE
ORANGE
BLACK
WHITE
24V
ELEMENTSLIMIT
ELEMENTSLIMIT
RED
RED
RED
RED
RED
RED
RED
T1
G
X13
T5
GREEN/ YELLOW STIPE
N
L
C
T2
T3
T4
RED
RED
32
BLACK
BLACK
BLACK
BLACK
Figure 33. E3EX 020H
Page 33
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
Yellow
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
33
Page 34
Furnace Inspection Report
Please Write In Appropriate
Response
Electrical Wiring (If single circuit , write “N/A” in circuit B)
Breaker Size?
Furnac e Wire Size?
Thermostat Wire Size?
Electrical
Is the furnace grounded properly ?YesNoN/A
Is wiring routed s afely with approved connectors?YesNoN/A
Closet Ins tallation
Is front clearance a minimum of 6 inches?YesNoN/A
Is return air opening a minimum of 235 s q. inches?YesNoN/A
Is front clearance less than 6 inches (minimum of 1 inch)? YesNoN/A
Is return air opening a minimum of 250 s q. inches?YesNoN/A
Does the furnace have the 5-ton AC coil installed?YesNoN/A
Is the return air opening a minimum of 390 sq inches?YesNoN/A
Plenum (Base) Connec tor
Is mounting plate secured properly?YesNoN/A
Is furnace locked and secured in front?YesNoN/A
Is plenum f ree of debris?YesNoN/A
Has plenum opening been reduc ed in size to accommodate offset?YesNoN/A
Has plenum spacer been removed if duct size is large enough?YesNoN/A
Circuit A
Please Circle A ppropriate
Response
Circuit B
Testing
Is someone in the plant trained to perform duct tests?YesNoN/A
VentilAire III __ IV __
Is VentilAire duct connected properly to furnace?YesNoN/A
Is depressuriz ation vent (if required) installed properly?YesNoN/A
Is roof assembly installed properly?YesNoN/A
Is roof assembly a minimum of 3 inches from any other vents?YesNoN/A
General
Is filter in place?YesNoN/A
Is owner’s packet included?YesNoN/A
Checked storage area for damage to product and proper storage?YesNoN/A
Is installation in accordance wit h installat ion instructions?YesNoN/A
Comments
34
Page 35
35
Page 36
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
¢708322}¤
708322D
708322D (Replaces 708322C)
Specificationsand illustrationssubject to change
without notice and without incurring obligations.
Printed in U.S.A. (10/06)
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