Lochinvar CF2071 User Manual
COPPER-FIN II®WATER HEATERS / BOILERS WIRING DIAGRAMS
CFE-CHE-WRG-02
MODELS CF/CH 991 - 2071
OPTION AL
AUX. HI-LIMIT
TEST
~
~
~
SWIT CH
~
PROBE
~
~
~
~
~
T
~
~
~
BL/
BK
BL/BK
O
BK
PR
HIGH
OPTIONA
RESSURE SWIT
P
A
NPUT
I
/
NUO
NTI
O
C
2
A
A1 B1
RESET
L
AR
L
PR
US IN
A3 B2 B3
P
BL/BK
D
IEL
F
ETY DEVICES
SAF
SINT
INUOU
T
N
O
C
3
A2 A
1
A
KO
O
IL
A
F
M
O
C
Y
USL
NUO
NTI
O
C
D
E
R
ITO
N
O
M
N
W
O
H
S
E:
NOT
D
E
V
O
M
E
R
S
BAR
NO
N
I
S
E
IC
V
E
D
EXAMPLE DEVICES:
S
A
G
W
HIGH /LO
XT.
E
,
IMITS
L
UX.
A
D SUPPLIED
IEL
F
POWER VENT
C
OR
T
MO
S
T
CONTAC
G
BL/
BK
Y
W
R
R
O
M
E
R
PE
M
U
J
Y
G
2
C
NO2
NO1
1
C
E
L
R
E
V
U
O
L
R
E
T
N
E
V
E
L
NAB
E
TACT
CON
Y
A
L
E
R
= RE
AN
P
ELAYS
R
=
= LE
OP
=
LOC ATED
E
V
R
/
/
BK/
AYS
L
EL
DS LOCA
TIONA
PR
HI-LIMIT
BR
T
PR
G
I
H
M
2
PR
H-LOW
CH
.
N.O
O.C.
24 VAC
J1
CONTROL
BL/BK
J2
3
2
1
RESET
P
PR
GND
LOW
PR
AS
G
ES
T
IT
M
R
E
T
IN
NA
E
M
R
A
L
A
Y
A
L
E
R
C
PR/BK
T
N
E
ITT
M
R
E
T
K
B
/
R
P
O
FLOW
CH
SWIT
~
~
~
~
~
~
D
ALLE
T
INS
NT
E
ITT
M
R
E
B
B3
1
B
2
K
IL
A
F
M
O
C
T
IN
M
IT
W
ND A
A
ARM
L
A
-
N
AUX
,
L
F
M
O
R
B
E
PROVIN G
R
ON
H
O
ER
IT
M
IT
O
H
S
A
T
T
S
HI-LIM
.
W
CLO
OPE
BR
W
E
T
R
O
T
R
CHE
A
T
WIT
S
C
S
N
BR/W
/
C1
N
E
N
I
E.
T
L
ONN
E
PR
PR
L
T
D
G
D
T
I
C
OU
D
Y
H
VER /
CTI
E
ROVI
P
SWITCH
EL
R
1
O
N
2
O
N
C2
OUVER/VENTER
L
L
NA
O
OPTI
W
NTROL
CO
ED ON CONTROL
T
OCA
L
OCATED IN
L
ED ON DISP
T
DIN RAIL CONN ECTORS
L
RICAL
CT
E
N EL
I
ALARM
INPUT 4
BL
J3
T
3
6
5
2
1
4
PR
J4
O
O/BK
O
ALARM
INPUT 1
ENT
E
L
B
HD#1
E #
AG
T
S
1
C
#
HD
GE #3
A
ST
3NO3
C
O/BK
TERMINAL
GE #2
A
ST
2NO2C
GE
A
ST
4NO
4C
NS
O
G
N
AR
L
A
PUT 3
N
I
Y
A
2
-24
5
Y
P-S W# 1
4
T
IGN#1-PS
1
T
B
IGN#2-PS
3
R
B
P-S W# 2
6
R
AYS
L
RE
WIRING BOX
AY BOARD
L
WIRING BOX.
BL
Y
1
NO1
2
STRIP
#4
M
VAC
CIRCUIT BREAKER
CHASSIS
BL
GROUN D
BL
BL
R
/
R
O
/
R
BK
BL
R/
W
/
O
BK
Y
PR
+
HD-
3
UMP
P
EAT
H
DEM
2
#
S
E
R
R
R
E
V
O
HEAT
DEM
3
#
5
STAGE
BL
17
TAGE #2
S
1
2
STAGE
TRONIC
C
E
L
E
19
STAGE
BL
8
7
ENSORS
S
23
1
T
E
ID
2
PERATURE
EM
T
6
5
-
1224
1
141
E
61
1
1
#
8
1
2
2
4
#
R
E
ONTROLL
C
0
2
3
#
9
4
OT
N
1
(
(2) ADD IT
3
(
(4) WH
P
BL
24 VAC
G
Y
Y
PR
A
R
B
E
M
A
L
F
RENT
CUR
PIN
T
S
E
T
R
E
IGNIT
O
O
P
O
N
C
PRESSURE
SWITCH #1
R/BK
L
B
PR/
K
B
ALARM
R/W
ME
FLA
ENT
CURR
ST PINS
E
T
R
NITE
G
I
O/
W
P
O/W
O
N
C
RESSURE
P
CH
SWIT
1
BR
2
W
3
PR
4
R/W
B
5
T
6
R/BK
:
S
E
ERE
) WH
O
I
R
P
I
R
T
S
MA
E
CH
) S
EN REPL
ON/OFF
POWER
SWITCH
+
120 VAC
-
Y
Y
ALARM INPUTS
1, 2, 3 & 4
JOIN HERE
MIT
R
INTE
E
ALARM EN
LAY
E
R
S
Y
G
GY
RIAL
T
GY
GY
O
P
T
RESE
E
G
R
U
W
/
L
B
BL
Y
A
L
E
R
G
IN
V
O
R
P
T
1
4
PR/BK
FFR
O
N
C
C
N
O
N
C
/
Y
G
W
/W
GY
TRIA L
GY/W
Y/
G
W
O/W
P
T
ESE
R
E
G
R
U
/W
L
B
L
B
Y
A
EL
R
G
IN
V
O
R
P
/W
T
3
6
2
#
R
B
R
B
R
P
R
P
/W
BR
W
BR/
BR/W
K
B
/
R
P
ALL S
,
E
L
B
OSSI
P
ERGY MANAGE
EN
N OF
THE
RE
EQUI
C IS WIRING DIAG
I
T
CING DAMAGED WI
A
BK
W
NT
E
T
ABL
-
5
4
3
2
1
11
10
9
8
7
6
5
4
3
2
1
Y
P
R
P
IO
T
P
O
-
5
4
3
2
1
11
10
9
8
7
6
5
4
3
2
1
EMOVAL
R
NIL
BK
1
WARNING:
CONNECTED TO ONE OR MORE BRANCH
2
CIRCUITS. TO PR
ENSURE ALL
ENERGIZED BEFORE ATTEMPTING TO SERVICE
BK
THIS EQUIPMENT.
PR
R
P
R
F1
F2
W
IGNIT
ODU
M
Y
F
F2
W
IG
MO
R/O
NLET
I
R
SYSTE
ES AND
ENT
M
F
O
R
-
+
1
#
Y
R
G
1
-
+
NIT
DU
#
Y
G
O
SOM
N
I
O
I
L
ION
2
UTLET
ER
G, U
P
N
E
G
CHASSIS
OUND
GR
BK/
W
W
BK
E
L
AN
T
/
M
RCUITRY ARE
I
C
TEMS
SYS
OF TH
E
O ACTUAL
T
EQ
SE
E
+
S
L
N
S
F
T
P
4
2
R
4
2
MV
P
M/S
F
A
N
+
S
L
NEU
S2/FS
T
P
2
R
2
MV
P
M/S
F
BR
BR
B
B
WI
H
F
BK
1
INE
EU
/
2
S
I
M
O
C
SET
E
AC
V
S
L
BK
1
E
N
I
H
I
M
O
C
4
E
S
E
C
A
V
4
S
F
R
P
P
W
/
R
W
/
R
K
/B
R
P
K
/B
R
P
CH
T
RAM, REF
T
120 VAC 15AMPS
THIS HEATER MAY BE
EVENT ELECTRICAL SHOCK
BRANCH CIRCUITS ARE DE
BL
W
BK
O
C
K
O
E SHORT
UIVA
Y
BL
C
NO
R
C
R
NO
TD
R
P
ANY FA
RUN TIME
P
O
ONTACTS
C
R
P
C
P
K
B
IONA
PT
RELAY
ONTAC
2
T
R
R/O
IONAL
T
AL
/W
R
ILURE
S
T1
Y
PUM
B
Y
O
N
Y
PUMP OPTIONA
US
AT
T
L
S
T
P
P
R
R
0
1
9
BOARD
R/BK
8
7
6
5
4
3
/
R
2
O
1
ATUS
T
S
BK/
47
1
5
2
6
3
W
MO
R/O
FIELD
S
A
LL
A
ST
N
I
CESSARY
NE
W
L
NA
O
OPTI
N
O
R
E
IL
O
B
O.A.
SENSOR
HOWN IN THE
S
R OPTIONAL LIMIT SWITCHES T
ING
OMPONE NT
C
ENT TYPE A ND
L
Y
L
BARS
ROM
F
OR EX AC T
S F
UG
A
G
B
P
B
P
O
60Hz
Y
OPTIONAL ALARM
SILENCE
BELL 24V OUTPUT
ALARM
CONTACTS
RELAY
P
PU
R
O
N
C
BK
W
K
B
L
RS
E
N BOIL
O
R
Y
A
L
E
B
HIGH
BK
W
LO
R
8
9
W
/
R
NOTE:
R
/O
R
E
IT
WH
=
B
=
K
U
P
=
R
L
B
=
L
IN
=P
ANG
=OR
YEL
=
G
/
Y
IR AT R
HE TE
T
.
E
BL
LOW
R
H
G
I
H
BK
S
SOME
E
N
O
HAN
E T
ICA
D
MIN
IO
JUNCT
C
I
R
T
C
E
L
E
(
E
D
E
S
O
L
C
TTE
O
D
E
CAT
I
D
IN
IP
U
Q
E
E
IT
ACK
L
E
L
P
R
E
U
K
E
G
H
WIT
W
O
L
ATES
T
S
EST
E T
O TH
RMINAL
N
ERMI
T
LBL20012 REV A
GROUND
,
-
T
OWER #
L
WER #2
O
GE
A
T
S
GA
E
T
O
P
N
S
Y
LL
A
P
S
D
N
IN
L
D
T
P
O
S
T
N
E
M
N
A
=T
T
L
E
Y
=
Y
BRO
=
R
B
E
R
G
=
G
R
G
=
Y
G
D
E
=R
R
S
EEN
R
.
R
E
ST
AL
G
CHASSIS
GROUN D
OWER
P
O
URCE
O
S
GE #
A
T
S
AG
T
S
~~~~
~~~~
~~~~
~~~~
GE #4
A
ST
HAVE
S
VES.
L
A
V
AG
T
S
S
T
IN
ME)
A
E
IC
L
E
NAL
IO
W
O
L
N
W
N
E
Y
A
E
IP
R
T
MINAL
RIP.
TIONS
LOCA
LA
R
T
U
ENE
W
W
Y
Y
Y
W
Y
1
Y
2
E #
Y
Y
1
W
W
W
Y
W
Y
3
E #
Y
W
.
WIRING BOX CONNECTIONS - Copper-Fin II®Water Heaters/Boilers
LBL2183 Rev. A
2 of 4
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