Page 1
E2 Series
Electric Furnaces
Service Manual
Page 2
Page 3
Table of Contents
Electrical Requirements......................................................................... 10
Codes, Specifications Requirements............................................................................ 10
Connection Supply Service Wires ................................................................................ 10
Furnace Sequence of Operation .......................................................... 5
Air Circulator Motor ....................................................................................................... 9
Air Circulation Switch .................................................................................................... 8
Heating Elements ......................................................................................................... 7
Cooling Relay ............................................................................................................... 7
Limit Switches............................................................................................................... 8
Sequencer .................................................................................................................... 6
General..................................................................................................... 4
Furnace Specifications ................................................................................................. 4
Model Identification Code ............................................................................................. 4
Serial Number Identification Code ................................................................................ 4
Selecting Blower Speeds ...................................................................... 11
Blower Performance ..................................................................................................... 12
Changing Blower Speeds............................................................................................. 11
Service Diagrams ................................................................................... 21
4-7 Wire Relay Box for H/P E2EB 020 and 023 Units................................................... 23
2-Wire Relay Box for A/C E2EH 020 and 023 Units ..................................................... 21
4-7 Wire Relay Box for H/P E2EH 020 and 023 Units................................................... 22
Thermostat Sequence of Operation..................................................... 12
Wiring Diagrams ..................................................................................... 13
E2EB 010 ..................................................................................................................... 17
E2EB 012 ..................................................................................................................... 18
E2EB 015,017 ............................................................................................................... 19
E2EB 020, 023.............................................................................................................. 20
E2EH 010 ..................................................................................................................... 13
E2EH 012 ..................................................................................................................... 14
E2EH 015,017 .............................................................................................................. 15
E2EH 020, 023 ............................................................................................................. 16
3 E2 Service Manual
Page 4
General
g
E2 series electric furnaces are approved for use in
mobile/modular homes. The E2 series furnaces are
approved for downflow and upflow installations as free
standing units, or for alcove installations. All furnaces
models are approved for “zero” inch clearance from
combustible materials. For downflow alcove
installations a grille with frame may be attached to the
top of the furnace and all paneling and trim flushed to
it.
MODEL IDENTIFICATION CODE
E 2 EB - 010 H - A
Product Type
E -Electric Furnace
This installations provides an access door for future
installation of an air conditioning/heat pump coil. All E2
series furnaces are A/C, heat pump adaptable. Refer to
table 2 For optional air conditioner/ heat pump
equipment. The E2 series includes two models: E2EH
and E2EB models. The E2EH models are equipped
with a two speed blower and require the addition of a
replay package for the addition of air conditioning or
heat pump. The E2EB furnaces are equipped with a
multi-speed (4-speed) blower, blower relay, and cabinet
insulation.
Options
A -A/C Ready
Electrical Code
H - 240-1-60
Generation
2 - Second Series
Product Identifier
EH - Heat Only
EB - A/C Blower Equipped
Primary Capacity
010 - 10 kw
012 - 12 kw
015 - 15 kw
017 - 17 kw
020 - 20 kw
023 - 23 kw
SERIAL NUMBER IDENTIFICATION CODE
E
Electric
Design Series
Manufacured Housing
Electric Furnace Models E2EH E2EB
010H 012H 015H 017H 020H 023H 010H 012H 015H 017H 020H 023H
Rated Heating Output, Btuh (see note1)
Watts (T otal kw, Heat ing Elements and
Heating Elements, No. (Total kw) 2 (10. 0) 2 (11.6) 3 (15.0) 3 (16.2) 4 (20.0) 4 (21. 6) 2 (10.0) 2 (11. 6) 3 (15.0) 3 (16.2) 4 (20.0) 4 (21.6)
Blower: Wheel Size 10.5" Dia., 8" Wide 10.5" Dia., 8" Wide
Motor S peeds, H.P. Rat ing, A mps 2 Speed, 1/5 Hp, 2. 0 A mps 4 Speed, 1/3 Hp, 2. 9 A m ps
Test ESP, in. w.c. Max 0.3
Optional Coolin
installed blow er
Opt ional Heat Pump Available with
fac tory installed blow er
Available with factory
Air Filter (St andard) 16" x 20" x 1" ( nominal)
Furnace Dimensions Width - 20" (508 mm ) Height - 29" (737 mm ) ( s ee not e 2) Depth - 24- 1/ 2" ( 623 mm )
Blower) 10.4 12.0 15.4 16.6 20.4 22.0 10.4 12.0 15.4 16.6 20.4 22.0
Supply Voltage 240/208 Volts/60Hz/1-Phase
35,000 41,000 53,000 57,000 70,000 75,000 35,000 41,000 53,000 57,000 70,000 75,000
2.0 - 3.0 ton (see note 3) n/a (see not e 3) 2.0 - 4. 0 t on (s ee not e 4)
E
2
2.0 - 3.0 ton (see note 3) 2.0 - 4. 0 t on (s ee not e 4)
9705
01234
Production Code
Month
Year
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 4 or 5 tons of air conditioning or 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 or heat pump.
4 E2 Service Manual
Table 1. Unit Specifications
Page 5
Item
8
Number
(See Fig. 1)
1 4-Sp eed B lower
4 T on - S ee Notes: 1 & 5
5 T on - S ee Note: 1
2 A.C./H.P. Relay Control Box
(not r eq’d on E2EB m odels )
See Note: 1
3 Cabinet I ns ulation Kit
See Not es : 1 & 5
4 "A "-Coil Convers ion K it
See Note: 2
5 Coil Cabinet
See Note: 3
6 Upfl ow S tand
See Note: 4
7 A/C and H/ P Indoor Coils
8 Retu r n A i r Grille and Frame
Assembly
No tes :
1) For A/C and H/P use.
2) Includes co il filters.
3) For upflow or downflow installations.
4) For upflow A/C or H/P installations (includes
on e f i lter; use f ilter from furnace t o complet e
filtering syst em in thi s acces sory).
5) Standard in EB models.
Descrip ti on
4
Cabinet
Insulation
23 3/4”
(603 mm)
7
27” (686 mm)
1
2
29” (737 mm)
3
20”
(508 mm)
20” (508 mm)
29” (737 mm)
Table 2. Optional Air Conditioning and
Heat Pump Equipment
Sequence of operation
With the circuit breakers in the on position and the
blower switch in the auto position. One half of the
control heating element and motor electrical circuit is
activated. When the contacts close in the wall
thermostat 24 volts is supplied by the 240/24 volt
transformer to the sequencer heater. This heats a bi metal in the sequencer which closes a set of contacts
and completes the circuit to the no.1 element and the
blower motor. As the heater continues to build up heat,
the bi-metal closes the remaining circuits to other
elements, until all elements are on. The “off” cycle is
reverse of the “on” cycle the blower and no.1 element
are first on and the last to be de-energized.
23 3/4”
(603 mm)
5
Coil Cabinet
20” (508 mm)
14” (357 mm)
23 3/4” (603 mm)
Filters (one obtained
from furnace)
6
Upflow Stand
NOTE: See Table 2 for descriptions and notes
Figure 1. Optional Accessories
5 E2 Service Manual
Page 6
Sequencer (Figure 2)
In general all sequencers operate the same way. In
some applications one sequencer may be sufficient
(10 and 12 kw models) in other applications. One two
or more sequencers may be required.
Important: Sequencers should never be mixed. If
different brands of sequencer are used and their timing
may be different.
Testing Sequencer
1. Shut off the power supply to the furnace, there
could be two circuits. Be sure both "A" and "B"
circuits are de-energized.
a. Remove all wires from the sequencer (making
note of wire color and terminal location). The
bi-metal heater portion of the sequencer will be
unmarked and at the bottom, closest to the
mounting plate. The switching portion will be
marked M1 through M8 depending on the
number of switches. Refer to unit wiring
diagram.
b. With an ohmmeter, test for continuity across
the bi-metal heater terminals. There should be
70 to 90 ohms of resistance. If the meter reads
no continuity, the bi-metal heater is open and
must be replaced. The OHMS value should be
70 to 90 across the bi-metal.
Figure 2. Sequencer
c. With an ohmeter check all switches in the
sequencer. They are labled M1-M2, M3M4...refer to Figure 2. All of the switches should
be open and have no continuity.
2. With all power on to furnace, and thermostat
contacts closed: using a voltmeter (set scale for
220 vac.) On contact terminals of sequencer,
check each set of terminals of sequencer, check
each set individually. If you read voltage, contacts
are open. If you do not read voltage, contacts are
closed. Allow a maximum time (110 seconds) for
heater to close contacts. If any of the contacts
remain open after three minutes the sequencer is
defective and should be replaced.
Indoor Coil
(optional)
Coil Air Filters
(used with indoor coil)
Furnace Air Filter
(NOT used with indoor coil
and coil air filters)
Data Label
Blower
A/C or H/P Relay Box (optional)
Blower Selector Switch
(next to blower)
Control Panel Cover
(right)
Control Panel Cover (left)
6 E2 Service Manual
Circuit Breakers
Page 7
Refer to unit wiring diagram section for wiring of
sequencer for each model furnace.
Control Transformer (Figure 3)
All E2 furnaces are equipped with a 30 VA, 240/208
vac primary, 24 vac secondary transformer.
The function of the transformer is to supply the 24
volts for the low voltage circuit which activates the
controls. Note: never replace a transformer with one
of less VA rating: however a higher rated transformer
can replace a lower rated unit. Example: unit has 30
VA replacement can be 40 VA.
Checking Transformer
1. Using a voltmeter, test power supply on the primary
leads of the transformer- must be 240 v +/- 10%.
If less than 226 vac switch black and blue primary
leads.
2. Remove wires from the secondary side of the
transformer. Or find the area where the wires
terminate and remove from component.
3. Use the voltmeter check the output of the
transformer, it should read 22 to 28 volts. If not,
Figure 5. Heating Elements in Furnace
then the transformer is nonfunctional and should
be replaced. Observe the transformer there should
be no distortion in shape, oil residue or odor. If any
of these symptoms exist replace the transformer.
Heating Elements (Figures 4 & 5)
The heating elements used are of modular design
consisting of helical-coiled nichrome resistance wire.
An insulated wire formed assembly supports the heating
elements. All elements are rated at 240 volts. Each
element is individually controlled by a switch of the
sequencing system and is protected by a limit switch.
Figure 3. Transformer
The function of the heating element, of course, is to
heat the air passed across them by the blower system.
Testing Heating Elements (Ohmmeter)
1. Shut off all electric supply to furnace
2. Remove all wires from terminals of heating coils
3. Using the ohmmeter test from terminal to terminal
of the coil-must show continuity-if not replace
element assembly.
4. Using the ohmmeter test from heating element
terminal to ground wire in the control panel, there
should be no continuity. If there is the coil is
grounded and must be replaced.
Caution: Heating elements must always be replaced
by an identical kW replacement. Substitution by higher
kW’s or elements of a different design may result in
unsafe operation of the furnace. Lower kW rated
elements will reduce output and may result in
unsatisfactory operation of the appliance. Refer to
element rating labels and furnace wiring diagrams.
Figure 4. Heating Element
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Page 8
Figure 6. Cooling Relay
Cooling Relay (Figure 6)
The E2EB has a factory installed cooling relay. The
cooling relay operates the air circulator at the high
speed when the relay is energized. The relay is
energized by the low voltage circuit by the g terminal
of the thermostat. At the same time it breaks the circuit
to the heating speed of the air circulator. the cooling
relay has one set of normally closed and one set of
normally open contacts.
Testing Cooling Relay
1. Turn off all power supply to furnace.
a. Remove all wires from cooling relay.
b. Using ohmmeter, test from terminal no. 1 to
terminal no.3 the coil should have resistance of
around 76 ohms. If there is no continuity, the
relay has a open coil and must be replaced.
c. Using ohmmeter, test from terminal no.5 to
terminal no. 6 there should be continuity, if no
continuity is shown relay is defective and must
be replaced.
d. Replace wires on terminal no.1 and 3 restore
power supply.
e. Energize relay by positioning the fan switch on
the thermostat to the fan position. The relay
should click.
f. Using ohmmeter, test terminals 2 and 4 there
should be continuity. If no continuity relay is
defective.
g. Turn off all power to furnace, reconnect all
wires to relay and restore power.
Figure 7. Limits in furnace
The limit device is a safety which can be compared to
a fuse or a breaker in a electrical circuit. The function
of the limit switch is to open the electrical circuit to the
heating elements if over heating should occur. This
could be caused by air circulator failure, dirty filters,
lack of return air, restricted ducts, etc. All limit switches
used are of the automatic reset type. On cool down
they will automatically reset.
Testing the Limit Switches
1. Shut off all electric supply to furnace.
2. Allow enough time for limit to cool down ( 5 to 10
minutes)
3. Remove wires from terminals of limit switches.
Note: all limit switches will be located on the
heating element rack face plate with red wires
attached to them.
4. Using the ohmmeter, test from terminal to terminal
continuity must be read. If no continuity is read
after cool down time, switch is defective and should
be replaced.
Caution: Limit switches must always be replaced by
their identical replacement part, i.e. Same setting, style
limits on the E2 series are either single or double pole
type thermo disc. Under no circumstance should a
limit of a higher setting or of a different type be installed.
Replacement with a lower setting limit may result
cycling of the control and insufficient heat output.
Air Circulation Switch
The air circulation switch is a manual rocker type
switch, single pole double throw, the switch when in the
“auto” position, allows the blower to be activated by the
Limit switches
A limit switch is a heat sensing device utilizing a bimetal disc to open a set of normally, closed contacts.
8 E2 Service Manual
Figure 8. Air Circulation Switch
Page 9
sequencer. The blower will run during the heating
cycle of the furnace. When the switch is in the “fan”
position the blower will run continuously. See Figure
8 for air circulation switch.
1
Black
* Yellow on E2EH 015, 017, 020, 023
Figure 9. Fan Switch Shematic
2
Red*
3
Yellow
Checking the Air Circulator Selector Switch
To check the air circulator switch shut of all power to the
furnace. Remove wires from air circulator selector
switch terminals. Check continuity of terminals with the
switch in “on” and “auto” position. See Figure 9 for fan
switch schematic.
Capacitor(See Figure 10):
1. Shut off the electrical supply to the unit.
2. Disconnect he electrical leads to the capacitor.
3. Discharge the capacitor using a 1500 ohm resister.
4. Check the capacitor using a capacitor tester.
Blower Motor (See Figure 11):
1. Shut power off to the furnace.
2. Disconnect the electrical motor leads.
3. Using an ohmmeter, check for continuity from each
terminal to the shell of the motor, if there is continuity,
the motor is grounded and should be replaced.
4. Using the ohmmeter, check the resistance across
the motor leads. See diagrams below. Note: the
higher the speed the lower the resistance of the
motor winding.
Air Circulator Motor
The circulator motor and blower wheel combination
move air across the heating elements to supply the
duct system with warm air.
To check the motor, be certain the capacitor is
functional.
Figure 10. Capacitor
Figure 11. Blower
Figure 12. Motor Schematic
9 E2 Service Manual
Page 10
ELECTRICAL REQUIREMENTS
WARNING:
!
NOTE: To install single-circuit kit, perform step 5. If
single-circuit kit installation is not necessary, go to
step 6.
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, 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 3 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 single-branch
supply circuit (single-circuit kit installed). Dualbranch circuit can be used by removing factoryinstalled single-circuit kit (see Figures 13 and 14).
• -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 .
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 Wire
Assemblies
(Factory
Installed)
Circuit Breaker
Bracket
OFF
OFF
60A60A
ONON
Optional Single Circuit
Adaptor Kit
Supply Service
Wire Connection
With Single Circuit
Adaptor Kit
!
IMPORT ANT :
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 13 and 14).
Figure 13. Installation of Optional Single Circuit Adaptor Kit
Circuit Breaker
Bracket
Circuit
Breaker Wire
Assemblies
(Factory
Installed)
Figure 14. Installation of Supply Service Wires
W ARNING:
!
60A
OFF OFF
60A
ONON
Supply Service
Wire Connection
Without Single
Circuit Adaptor Kit
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.
10 E2 Service Manual
Page 11
Recommended Wire
Sizes*
Mo del Max Over- Mi n. 75°C Copper Low-Voltage
E2EH/
E2EB-
Supply
Circuit
Total
Amperes
Current
Rati ng
Circuit
Ampacity Wire Size Ground Size
Thermostat Wire
Size
010
012
Single
Single
Dual "A"
"B"
015
Single
Dual "A"
"B"
017
Single
Dual "A"
"B"
020
Single
Dual "A"
"B"
023
Single
Dual "A"
"B"
* All wire s iz es for copper c onduc tors only , based on NEC Table 310- 16. Equivalent wir ing m ay be us ed p er NE C.
45.5
52.1
28.0
24.2
66.3
45.5
20.8
71.3
48.8
22.5
87.1
45.5
41.7
93.8
45.5
48.3
60 57 6
70 65 6
40 35 8
30 30 10
90 83 4
60 57 6
30 26 10
90 89 3
60 61 6
30 28 10
125 109 2
60 57 6
60 52 6
125 117 1
60 57 6
60 60 6
10
8
10
10
8
10
10
8
10
10
6
10
10
6
10
10
2-W ir e
system max wire
lengths :
24 Ga. = 55’
22 Ga. = 90’
20 Ga. = 140’
18 Ga. = 225’
4 or mor e- Wire
system max wire
lengths :
24 Ga. = 25’
22 Ga. = 45’
20 Ga. = 70’
18 Ga. = 110’
Table 3. Electrical Specifications
Selecting Blower Speed
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.
See Table 4 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.
Plug/ Rec e ptical Position Pin 1 Pin 2 P in 3 Pin 4
2-Speed Blower
4-Speed Blower
Control Box Blower Lead
Minimum approved
speed for 010, 012
and 015 models.
Minimum approved speed for
017, 020 and 023 models.
Table 4. Furnace Blower Speed Data
Low High - -
Med-Lo Med-Hi
Low
Red Yellow Blue Black
High
!
IMPORT ANT:
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 4.
Changing Blower Speed
E2EH: The selected heating blower lead is attached to
terminal 2 of blower selector switch.
a. Remove blower lead from terminal 2.
b. Choose desired speed and install new blower lead onto
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.
11 E2 Service Manual
Page 12
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.
See Table 5 for blower performance data.
THERMOSTAT SEQUENCE OF OPERATION
NOTE: If appliance(s) is equipped with time delay
control, the system operation will lag behind the
thermostat.
Stand ard 2-S p eed Bl o wer ,
wi th fil ter , @ 0.3" E SP
Pin No. Speed CFM
#1 Low 840
#2 High 1160
4-Speed Blower, with Coil and
Coi l Fil ter s, @ 0.3" E SP
Pin No. Speed CFM
#1 Low 880
#2 Med.-Low 1170
#3 Med.-High 1310
#4 High 1460
Table 5. Blower Performance
For Heating
1. Turn on electrical power to appliance.
2. With thermostat cover off, move temperature-setting
lever until right-hand (heating) contacts close. For
CM65A-5ABO, CM65A-5JBO or CM65 with optional
sub-base, set heat/cool switch to “HEAT” and set ventilate switch to “AUTO.” Heating system and air circulator blower should turn on.
3. Check air temperature at supply duct registers.
4. Move temperature-setting lever until right-hand (heating) contacts open. Heating system and air circulator
blower should turn off.
5. Replace thermostat cover.
For Cooling
1. Turn on electrical power to the appliance.
2. With the thermostat cover off, move temperature-setting
lever until left-hand (cooling) contacts close. For CM65A5ABO, CM65A-5JBO or CM65 with optional sub-base,
set heat/cool switch to “COOL” and set ventilate switch
to “AUTO.” Cooling system and air circulator blower
should turn on.
3. Check air temperature at supply duct registers.
4. Move temperature-setting lever until left-hand (cooling)
contacts open. Cooling system and air circulator blower
should turn off.
5. Replace thermostat cover.
For Continuous Air Circulation and Ventilation
NOTE: For CM65, see furnace owner’s manual on indepen-
dent blower operation. For CM65A-5ABO, CM65A-5JBO or
CM65 with optional sub-base, follow the steps below.
1. Set thermostat heat/cool switch to “OFF” and set ventilate switch to “ON.” Air circulator blower only should turn
on.
2. Set thermostat heat/cool switch to “HEAT.” Air circulator blower should operate continuously with on and off
heat cycles.
3. Set thermostat heat/cool switch to “COOL.” Air circulator blower should operate continuously with on and off
cooling cycles.
For System Shutoff
1. With electrical power to appliance turned on, move
temperature-setting lever to turn on heating or cooling
system.
2. Set ventilate switch to “AUTO” and set heat/cool switch
to “OFF.” All system operations should turn off.
12 E2 Service Manual
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Figure 15. E2EH 010 Wiring Diagram
13 E2 Service Manual
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14 E2 Service Manual
Figure 16. E2EH 012 Wiring Diagram
Page 15
Figure 17. E2EH 015, 017 Wiring Diagram
15 E2 Service Manual
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16 E2 Service Manual
Figure 18. E2EH 020, 023 Wiring Diagram
Page 17
Figure 19. E2EB 010 Wiring Diagrams
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18 E2 Service Manual
Figure 20. E2EB 012 Wiring Diagram
Page 19
Figure 21. E2EB 015, 017 Wiring Diagram
19 E2 Service Manual
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20 E2 Service Manual
Figure 22. E2EB 020, 023 Wiring Diagram
Page 21
Figure 23.Two-Wire Relay Box for A/C E2EH 020 and 023 Units
21 E2 Service Manual
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Figure 24. 4-7-Wire Relay Box for H/P E2EH 020 and 023 Units
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Figure 25. 4-7-Wire Relay Box for H/P E2EB 020 and 023 Units (Part 1)
23 E2 Service Manual
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Figure 26. 4-7-Wire Relay Box for H/P E2EB 020 and 023 Units (Part 2)
24 E2 Service Manual
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26 E2 Service Manual
Page 27
Page 28
R
R
St. Louis, MO
359A-1097
Specifications and illustrations subject to change without notice and
without incurring obligations. Printed in U.S.A. (10/97)
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