LENNOX Air Handler Auxiliary Heater Kit Manual L0805583
User Manual: LENNOX LENNOX Air Handler Auxiliary Heater Kit Manual LENNOX Air Handler Auxiliary Heater Kit Owner's Manual, LENNOX Air Handler Auxiliary Heater Kit installation guides
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,t_2008
Lennox
Dallas,
Industries
Texas,
INSTALLATION
INSTRUCTIONS
Inc,
USA
ECB29 Series Units
ECB31 Series Units
ELECTRIC
HEAT SECTIONS
505,251M
01/08
Supersedes 08/06
TeCh
n i cal
blications
Litho U.S.A.
Electric Heat Sections ..........................
Shipping & Packing List ........................
General Information ...........................
Heat Section Installation ........................
Circuit Breaker Installation ......................
Blower Speed Connections .....................
Electrical Connections .........................
Unit Start-Up ..................................
Wiring Diagrams ..............................
A, CAUTION
1
1
1
2
2
4
4
5
6
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
The ECB29 series electric heat sections provide field
installed electric heat for CB27UH, CBX27UH, CB30M,
CB30U, CBX32M and some CB31MV and CBX32MV series blower coil units. ECB29 sections are available in
single-phase and three-phase. Single-phase ECB29s are
equipped with either terminal blocks, fuse blocks or circuit
breakers.
ECB31 series electric heat sections provide field installed
electric heat for CB31MV and CBX32MV blower coil sections. ECB31 sections are equipped with circuit breakers
and are available in single-phase 10kW and 20kW sizes.
These instructions are a general guide and do not supersede local codes. Local authorities having jurisdiction
should be consulted before installation. Read these instructions thoroughly before starting installation.
Only qualified installers or technicians should install the
electric heat section and all other equipment used in HVAC
systems. You must follow federal, state, and local codes
while you install this or any other HVAC equipment.
WARNING
Refer to the engineering handbook for specific heat section applications.
Package 1 of 1 contains
Be sure to disconnect all power to the unit while you install
and service this equipment. Use proper tools and protective equipment during installation and service.
1 - Assembled electric heat section
1 - Bag assembly containing the following:
6-Screws
1-Wiring diagram
1 - Transformer (575V only)
1 - Fuse block extension plate (460V & 575V only)
2 - Adhesive-backed foam seals
Check equipment for shipping damage. If you find any
damage, immediately contact the last carrier,
01/08
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
Page
Installation of Lennox blower sections with or without optional electric heat must conform with standards in the National Fire Protection Association (NFPA) "Standard for
Installation of Air Conditioning and Ventilation Systems
NFPA No. 90A," and "Standard for Installation of Resident
Type Warm Air Heating and Air Conditioning System, No.
90B," the manufacturer's installation instructions, and local municipal building codes.
505,251M
IIIIIIIIIIIIIIIIIIIIIIIIIIIIII
1, Install the circuit breaker on the blower deck flange.
Use the provided screws (6) to secure (see figure 2),
Before installing the unit, check information on the unit rating plate to ensure that the unit meets the job specification,
proper electrical power is available, and that proper duct
clearances are maintained.
Electric
NOTE - It is easier to install the ECB29EH heat section inside the blower coil unit before the unit is set and the plenum is attached.
CIRCUIT
CIRCUIT
1, Shut off all power to the blower coil unit, More than one
disconnect may be required,
2, Remove blower section access panel,
3, Remove the electric heat knockout section in the blower coil vestibule panel for the appropriate size of heater
used. Remove the extended width knockout to allow
for installation of 20kW heater (see figure 1 ).
4, Slide the electric heat section into the blower section.
Be careful that the heating elements do not rub against
the sheet metal opening when they slide into the blower section. The hole(s) on each side of the heater line
up with holes in the blower coil control box, Secure the
electric heater into place with the screws that are provided in the bag assembly,
_I.
_....._,{_
BREAKER f
_
BRACKET
_
t l % . " "_l'_"
I
./_
_" /-"-"-_SCIRCUI
_#"
T BREAKER
MOUNTING
SCREW
rail, Secure with screw,)
Figure 2
NOTE - When applied in the downflow position, the circuit
breakers must be rotated to the UP position. See figure
2 and follow the procedure below:
A Disconnect power to the unit if present.
B Remove the screw and slide the breakers off the
mounting rail,
NOTE - You may need to remove the wire tie that's
closest to the circuit breaker to allow for rotation.
C Rotate the circuit breaker 180 _,
D Slide the circuit breaker back on the rail and secure in place with previously removed screw.
O-O
CB30M-21/26 CB30U-21/26
CBX32M-018/024 CBX32MV-018/024
2, The blower coil access panels are factory supplied,
and they have a patch plate over the circuit breaker
opening. Remove the circuit breaker patch plate from
the blower access panel, See figure 3,
3, Replace the unit blower access door,
KNOCK
OUT
EXTENDED
WIDTH
WH EN
USING
20KW
ELECTRIC
HEATER
4. Choose the appropriately sized adhesive-backed circuit breaker seal and remove any perforated sections
(if needed). Apply the seal to the outside of the blower
access panel so that the seal is snug around the circuit
breakers.
CB27UH-018, -024, -030, -036, -042, -048, -060
CBX27UH-018, -024, -030, -036, -042, -048, -060
CB30M-31, -41, -46, -51, -65
CB30U-31,-41,-46,-51
,-65
CB31MV-41, -51, -65
5, Break the patch plate for the specific size of electric
heat unit / blower coil unit that you are installing. Discard the unused piece of patch plate, Figure 4 shows
C B 30M-21/26, CB 30U-21/26, CBX32M-018/024 and
CBX32MV-018/024 units; refer to figure 5 for all other
blower coil units.
CBX32M-030, -036, -042, -048, -060
CBX32MV-024/030,
-036, -048, -060, -068
O-O
Figure
Breakers
(Remove the screw and slide the
breakers off mounting rail. Rotate
breakers 180 ° and slide back on
Blower Coil Knockouts
l
l
with Circuit
IN DOWNFLOW
APPLICATIONS,
CIRCUIT
BREAKERS
MUST BE
ROTATED 180 TO THE
UP POSITION.
I
A WARNING
HOLES IN KNOCKOUT ALLOW ROOM
FOR DIAGONAL CUTTERS USED TO
CUT THROUGH SHEET METAL
Heat Section
1
6, Secure the patch plate on the blower access door,
Page 2
505251M
01/08
Circuit
Breaker
Seal and Patch Plate Installation
CIRCUIT
BREAKERS
BLOWER
ACCESS
PANEL
CIRCUIT
BREAKER
SEAL
BLOWER
PATCH PLATE
CIRCUIT
DECK
BREAKER
BRACKET
i
I
PATCH
_ "m
I
I
I
II
_ k "_::_''J
I DISCARD
I
Break at this point
Figure
3
Circuit Breaker Heater And Patch Plate Configuration
CB30M-21/26, CB30U-21/26, CBX32M-018/024 & CBX32MV-018/024
PATCH
PLATE
(Shipped installed on CB unit)
c::_l
I
I
I
I
I
I
I
I
I
I
I
Long
Section
ECB29-5CB,
ECB29-8CB,
ECB29-6CB,
ECB29-10CB
Side
of
Unit
ECB29-12.5CB
ECB29-15CB
Side
of
Unit
Patch plate shown with longest section on
the right side. Patch plate may be factory
installed with long section on the left side,
CIRCUIT
BREAKER
SEAL
(Shipped with electrical heat and
field installed)
_II_ROTATE
180 and
install over openin!
F_
I I
II
II
Long
Section
I
I
_:_
I DISCARD
Dotted lines are perforations
Break at this point
Figure
Break at this point
4
Page 3
ECB29
SERIES
Circuit Breaker Heater and Patch Plate Configuration
CB27UH/CBX27UH-018,
-024, -030, -036, -042, -048, -060;
CB30M-31,-41,-46,-51
-65; CB30U-31,-41,-46,-51,-65;
CB31M-41,-51,-65,
CBX32M-030;-036,-042,-048,-060;
CBX32MV-024/030,-036,-048,-060,-068
PATCH PLATE
(Shipped installed on CB unit)
c::_l
I
I
I
I
I
I
I
I
c:_
ECB29-5CB,
ECB29-8CB,
Long
Side Of
Unit
I
I
I
Section
ECB29-6CB,
ECB29-10CB
ECB31-10CB,
ECB29-15CB,
ECB29-12.5CB
ECB29-20CB
Side Of
Unit
Patch plate shown with longest section on
the right side, Patch plate may be factory
installed with long section on the left side,
CIRCUIT
BREAKER
SEAL
ROTATE 180" and
(Shipped with electrical heat and
field installed)
install over opening
::: !
I
[D' -I
Dotted lines are perforations
ECB31-20CB,
ECB29-30CB
"_
II
\
ECB29-20CB
ECB29-25CB
ECB29-25CB
ECB29-15CB
Side Of
Unit
3 Ph
Side Of
Unit
r
I
I
I
I
I
I
I
I
I
I
I
I
I
Long
Section
Long
section
I
[ DISCARD
/41
DISCARD
Break at this point
Figure
When using ECB29 or ECB31 heat section with the CB30M,
CB30U, CB31MV, CBX32M and CBX32MV series blower
coil units, adjust the blower speed according to the size d
electric heat and blower coil unit, The minimum blower setting for each blower size with any heat sections in any application is HIGH, See specific blower coil installation instructions for blower speed adjustment procedure and location.
WARNING
LII-"]_[o,Io]_[o,Io]_lIo]ij[o]_,.
_] Eo]_Ik'il
I
/'4
r
I
I
T
I
I
[
I
I
Long
I
I
I
Section
I
I
I
I DISCARD
]
Break at this point
5
NOTE - Refer to the nameplate on the blower coil unit for
minimum circuit ampacity and maximum overcurrent
protection size.
The blower coil units are provided with openings to be used
with 1-1/2 inch trade size (1-31/32 inch diameter) conduit.
A conduit reducer washer has been provided if you are
installing a smaller conduit,
For single-point power supply, refer to the nameplate on
the single-point power supply accessory for minimum circuit ampacity and maximum overcurrent protection size.
Select the proper supply circuit conductors in accordance
with tables 310-16 and 310-17 in the National Electric
Code, ANSI/NFPA No, 70 or tables 1 through 4 in the Canadian Electric Code, Part I, CSA Standard C22.1.
Page 4
01/08
3 Ph
3 Ph
Side Of
Unit
[
I
Break at this point
505251M
Break at this point
Break at this point
Refertofigure7fortypicalcondensing
unitapplication
and
figure8 fortypicalheatpumpapplication
witha blowercoil
unitandelectricheatsection,Figure10showswiringfora
20KWunit.
Refertofigures11through15fortypicalsystemdiagrams
forallunitswithinstalledelectricheatsections.
4, If using an outdoor thermostat--Remove the jumper between terminals "W2" and "R" of TB1 terminal
block and connect leads to "W2" and "R".
Installing
Make wiring connections
1, Make wiring connections as follows
Heaters equipped with circuit breakers--Connect
field power supply wiring to circuit breaker(s)
Heaters equipped with terminal blocks--Connect
field power supply wiring to terminal block(s).
Heaters equipped with fuses (G and J voltage)Connect field power supply wiring to fuse block. (An
extension plate is provided for J voltage units.)
2, Remove the interface harness from the blower coil unit
and connect the plug from the heater to the matching
plug inside blower coil unit.
Figure 6
1. Replace the blower compartment
2, Restore power to the unit,
3, Set the thermostat heat anticipator
Cooling
Application
ELEMENT
With
tl
NOTE - ALL REMAINING
TRANSFORMER
A
TO EXTERNAL
A
THERMOSTAT HEAT ANTICIPATION
(ELECTRIC HEAT)
A
WHEN TWO-STAGE THERMOSTAT IS USED, CONNECT
SECOND STAGE HEAT BULB TO TERMINAL 'W2" AND
REMOVE JUMPER BETWEEN TERMINALS "R" AND "W2"
FACTORY-INSTALLED
JUMPER
BREAKER
6ROUND
CIRCUIT
,ll-------[_]]
A
A
z_
I TERMINALI
NEC/CEC
LOAD 24VAC AT .50 AMP MAXIMUM
#I
RELAY
CBI
L
WIRES FACTORY-INSTALLED
CLASS 2 VOLTAGE FIELD-INSTALLED
K32
L
ONLY
LINE VOLTAGE FIELD-INSTALLED
HEAT
II
Heat
NOTE - USE COPPER CONDUCTORS
CIRCUIT BREAKERS
OR TERMINAL
BLOCK
rj
Electric
REFER TO UNIT RATING PLATE FOR MINIMUM CIRCUIT AMPACITY AND MAXIMUM OVERCURRENT PROTECTION SIZE
[]A
....
to 0.4 amps,
7. Affix thewiring diagram sticker to blower scroll aligned
with CB unit wiring diagram sticker,
K3 INDOOR
BLOWER RELAY
HEAT
access cover,
4. Set the thermostat above room temperature,
5, Check the heat pump and the heat section for normal
operation,
6. Set the thermostat to desired setting.
3, If using a two-stage thermostat--Remove
the
jumper between terminals "W2" and "R" of TB1 terminal block and connect the second stage heat bulb lead
to "W2",
LI
(575V only)
Install transformer in the control box and connect it between the provided plug in
the blower coil unit,
NOTE - J voltage (575V) heaters are shipped with a
line voltage to 460V transformer, This transformer
provides 460V power to the blower motor only. See
figure 6,
L2
Transformer
z_L3
(_
I
I
_1
__w
I
SETTING 0.4 AMP
CONNECTION USED ON (Y VOLTAGE) 3-PHASE ELECTRIC HEATERS ONLY
I
__1
I
Avv
Figure
7
Page 5
ECB29
SERIES
L2 LI
I
Heat Pump Application
With Electric
Heat
K 3 INDOOR
BLOWER RELAY
208-240/60/I
HEAT ELEMENT '1
CIRCUIT
1
[]
CIRCUIT
BREAKERS
OR
TERMINAL BLOCK
TRANSFORMER
K32
HEAT RELAY _I
/I
CB1
r_,
BREAKER
LINE
GROUND
_TEBIR
M
VOLTAGE
CLASS
2
NEC/CEC
CIRCUIT
FIELD-INSTALLED
VOLTAGE
FIELD-INSTALLED
A
INAL
NOTE-ALL
REMAINING
WIRES
FACTORY-INSTALLED
BLOCK
__%
'1,, ,,',
I
,'
I
I
]
I EM
I
.I
sl
THERMOSTAT
//_
K22
HEAT
RELAY
_
I
I
I
I
I
J
:2
4
[
-4
4
Z_
THERMOSTAT
HEAT ANTICIPATION
I
I
I
I
I
I
SETTING 0.4 AMP ELECTRIC HEAT
iA
r,dLr
z_
FACTORY INSTALLED JUMPERS
m_
8
o_Z
Z_
WHEN OUTDOOR THERMOSTAT IS USED, CONNECT LEADS TO TERMINALS
AND 'W2" AND REMOVE JUMPER BETWEEN TERMINALS "R' AND 'W2."
"R"
g
8
o
orr"
LiJ
Z_
EMERGENCY HEAT RELAY (USED ONLY IF OUTDOOR T'STAT IS USED) FIELD
PROVIDED AND INSTALLED NEAR INDOOR UNIT, 24VAC 5VA MAX NEC/CEC
CLASS 2
z_
USING SERVICE LIGHT OPTION (S54) WITH SOME ELECTRONIC THERMOSTATS
MAY REQUIRE MOVING S54 COMMON WIRE TO Y1 IN HEAT PUMP UNIT,
Z_
COMMON USED ONLY ON SOME THERMOSTATS,
Z_
Y2 USED ONLY WHEN TWO SPEED COMPRESSOR
z_
AMBIENT COMPENSATING
THERMOSTATS,
z:_ L3 CONNECTION
THERMISTOR
IS USED (HP21).
CONNECTION
USED ONLY ON SOME
USED ON Y VOLTAGE 3 PHASE ELECTRIC HEATERS ONLY,
Figure
Page 6
505251M
01/08
8
8
_w
nL_
laJO
8
8
Wiring
for Models
-10, -15, -20 and -25 KW Electric
COMPONENT
Heat (G Voltage)
P2
ARRANGEMENT
-I\
/
0
0
SI5
o
0
0
0
0
)
K36- IT
K36-2 :_:
KI5
/
(_KF5
DESCRIPTION
KEY
COMPONENT
rUSE=ELECTRIC HEAT
:3
HEI
£LEMENT-ELECTRIC
HEAT
]ONTACTOR=ELECTRIC HEAT
KI5,-E
_,36,- F,2,5 RELAY-HEAT BLOWER
32
3LUG=ELECTRIC HEAT
SIS
SWITCH=LIMIT,PRIMARY
AUTO RESET
S20
3WITCH-LIMIT,SECONDARY,ELECT.
HT
IERMINAL BLOOK-ELECrRlO
HEAl
TBS
A
;_
-3)
A
L2
T
-7 >
L3
K36 3 _
TB3
FUSE
SIZE
EQUIPMENT
GROUND
UNIT
VOLTAGE
ZCB29-
NOTE-USE
CONDUCTORS
I0
ONLY
15-I
FUSE
SIZE
"G"
20A
ECB29-15
"G"
"J"
25A
----
ZCBE9-ZO
"G"
".I"
35A
25A
ECB29=25
"G"
"J"
40A
35A
COPPER
LL_
CHART
z_& REFER TO UNIT
NAMEPLATE FOR
MINIMUM CIRCUIT
AMPACITY AND
MAXIMUM OVERPROTECTION SIZE.
=
520
--LINE
VOLTAGE FIELD INSTALLED
-,_------OENOTES
OPTIONAL COMPONENTS
LENNBX, L_,.o_,o_.
WIRINGDIAGRAM 1/96
®
HEATING UNITS-ELECTRIC
ECBZ9-10,15,ZO,Z5-I-G
ECB29-20,25-I-J
Su£ersedes
Form
No,
New
Form
No.
531 , 708W
Q
Ig95Lenaox
IadustrEes
In_.
Lith0
U,S,A.
Figure 9
Page 7
ECB29
SERIES
Wiring
for 20CB-3
COMPONENT ARRANGEMENT
KW Electric
Heat (P Voltage)
K35
P2
CBI
CB2
/
/
KEY
CBI
CB2
HFI.2
HE3,4
P2
K32.-1.2
K3_,-I,2
K54,-1,2
K35,-I
SIS
$20
Z_
DESCRIPTION
COMPONENT
CIRCUIT
BREAKER-ELECTRIC
HEAT
CIRCUIT-BREAKER=ELECTRIC
HEAT
ELEMENT-ELECTRIC
HEAT
ELEMENT-ELECTRIC
HEAT
PLUG-ELECTRIC
HEAT
RELAY-SEQUENCER.ELECTRIC
HEAT
RELAY-SEQUENCER,ELECTRIC
HEAT
RELAY-SEQUENCER.ELECTRIC
HEAT
RELAY=SEQUENCER,ELECTRIC
HEAT
SWITCH-LIMITIPRIMARY
,AUTO RESET
SWITCH-LIMIT,SECONDARY
_
CIRCUIT
LI _"
?
L2 _
|
C82
EQUIPMENT
GROUND
_
_
2
Z_
A
REFER TO UNIT
NAMEPLATE FOR
MINIMUM CIRCUIT
AMPACITY AND
MAXIMUM
OVERPROTECTION SIZE.
--LINE
2
NOTE-USE COPPER
CONDUCTORS ONLY
VOLTAGE FIELD
-,<_DENOTES
OPTIONAL
INSTALLED
COMPONENTS
I
fr_ CIRCUIT
L2_Bq
'
EOUIPMENT
2-
-3 \
-7
\
/
l
GROUND
i
WIRING DIAGRAM
9/_
HEATING
ECB29-20CB-S-P
)
4E_!
:HES
UNITS-ELECTRIC
:HE2
Supersedes
Form
No.
I
E
Figure
10
Page 8
505251M
01/08
New
Form
532,670W
NOI
CB27UH,
CBX27UH
Blower
Coil Unit with Installed
IFIELD
CIR_IT
2 _F_
WIRING
UNITS
WITHOUT
CIRCUIT
BREAKERS
LeL__-
z_L_3
_
EOUIPHENT
Electric
Heat --
P Voltage
I
UNITS
WITH
CIRCUIT
BREAKERS
(_
ER HD
EQUIPHENT
EQUIPMENT
24V POWER
J
-6
I
j_
i
i
i
_ BLACK
i
i
i
i
BD_3____MOTOR-BLOWER
FI
FUSE-TRANSFORMER,TI
J2
JACK-ELECT. HEAT
JACK-OUTPUT
J49
J4G
_AR
SPD
,
[]
REV
]
_
Y2
A
/I
i
,_LACK
FACTORY
COOL
PIN #3
SPEED
TAPS
_L2)
C%iT,
5RN/
YLV
TBI
B3
KIO3-]
TDI
i
1
LOV
STAGE DEHUMIDIFY
K1B3-]
COOL
PIN #3
HEAT
PIN #4
_kEQUIPMENT
3
GROUND
4
_
Z_S L3
ON TWO
STAGE
LOCATED
IN INDOOR
DEHUMIDIFY
24V
COMMON
IS NOT
PRESENT
Z_S FOR HIGH STATIC
DEHUMIDIFICATION
NON
5
HIGH
(P)
ON
ELECTRIC
HEATERS
Z_S THE NUMBER OF CIRCUITS VARY ACCORDING
TO HEATER MOI]EL. REFER TO FAN COIL
NAMEPLATE
FOR ACTUAL NUMBER EMPLOYED
"YI' TO "Y2 _ IS FOR SINGLE STAGE COOLING,
JUMPER "YI' TO 'Y2" FOR TWO STAGE CODLING,
REMOVE
R TO W2
JUMPER
L_HEAT
PUMP
APPLICATIONS
IHEAT
PUMP WITH
ELECTRIC
HEAT
HEAT
PIN #4
mMININUM SETTING FOR HEAT
CONNECT POWER
WIRES FROM HEATER LABELE_ LI,L2 DN
Lv-_,p- VOLTAGE
UNITS AND LI,LE,L3 ON "Y" VOLTAGE
UNITS TO TO2 TERMINAL STRIP IN INDOOR UNIT
i STAGE
ICON_NSING UNIT
WITH
ELECTRIC
HEAT ONLY
_
USE COPPER CONDUCTORS
ONLY, REFER TO UNIT
/_NAMEPLATE
FOR MINIMUM CIRCUIT AMPACITY
AND MAXIMUM OVERCURRENT
PROTECTION
SIZE
STAGE
HEAT
PUMP
_
/_xREFER
TO FACTORY BLOWER
SPEED TAP SELECTION
CHART
FOR DLOWER
SPEED
INFORMATION
AND UNIT
INSTRUCTIONS
FOR ADDITIONAL
BLOWER
SETTINGS
/_JUMPER
REMOVE
YI
BLOWER
SPEED
TAP
SETTINGS
SPEE_
SELECTION
"COOL"
"HEAT"
LOW
VOLTAGE
i
O
i
3
T_
P2 Je
e
_
VALVE
C00LIHEAT
21
_ > YELLOW
BLOVERi CDNDENSC01L
ING UNIT
(_x
V2
COOL/HEAT
-3
2
vi
AUX HEAT 2
gl
I STAGE
NORMAL
e
AUK HEAT i
I
......
>E#D
O
1
I
® >>BROWN
KIB3,-____l_ELAY-DEHUMIDIFICATION
_46PLUG-DUTPUT
_49
PLUG-MOTOR?VAR
SPD
TIJFRANSFORMER-CONTROL
TBIFERM
STRIP-CLASS
II
ECON
B-OVER
.
N--
_ GREEN
e STAGE
as
L_
DESCRIPTION
B3
5ROUND
R
AI5
>
IPNENT
_d_
-....
APPLICATION,
REFERENCE
KIT INSTRUCTIONS
BENOTES
OPTIONAL
COMPONENTS
LINE VOLTAGE
FIELD WIRING
CLASS II VOLTAGE
FIELD VIRING
LENNOX
COILS-BLOWER
C01L UNITS
UNIT
°.-1
.... I
] STAGE
HIGH STATIC
Figure 11
Page 9
ECB29
SERIES
CB3OM, CB30U
Blower
Coil Unit with Installed
_DENOTE5
OPTIONAL COMPONENTS
_LINE
VOLTAGEF]ELO_IRING
__
w CLASS[[ VOLTAGEFIELD WIRING
REFER TO FACTORY BLOWER SPEED TAP SELECTION
A
zG_ ON UNIT FOR BLOWER GREED INFORMATION
z_NEC/CEC
Electric
FIELD WIRING FOR ECB
SERIES UNITS WITHOUT
CIRCUIT BREAKERS
CHART
FIELD
UNITS
CIRCUIT
z_EOUIPMENT
IS
WIRING FOR ECB SERIES
WITH CIRCUIT BREAKERS
GROUNO LOCATED
NOT PRESENT ON (P)
IN
AL_--
3
CIRCUIT
A GB__
_O_ROUIT
IFqZ_
/A
CONNECT POWER WIRES FROM HEATER LABELED LI,LG
ON
_"P"
VOLTAGE UNITS AND LI,L2,L3
ON "Y" VOLTAGE
UNITS TO TOG TERMINAL STRIP
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15
Page 13
ECB29
SERIES
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