Lochinvar 270,000Btu User Manual
RSB-WRG-01
Schematic Diagram – F1 Unit
90,000 - 270,000 Btu/hr Models
Wiring Diagram – F1 Unit
90,000 - 270,000 Btu/hr Models
120VAC
CIRCULATION PUMP
R
W
SPILL
ROLLOUT
OPERATOR
X
B
NO
C
FLOW
SWITCH
INLET
SENSOR
TANK
DIFFERENTIAL
240
SETPOINT
160
OFF
RELAY
PUMP
140
120
220
200
180
7
6
5
8
9
5
15
14
13
12
10
11
10
OFFSET
HIGH-FIRE
0
TANK
SYS/
SENSOR
INLET
20
15
BOX DEPICTS
OPTIONAL ITEMS
24VDC
W
Y
TRANSFORMER
BL
SENSOR
RELAY
MV
MV
PV
PV
A
P2
P1
1
2
1
234
OR
BN
BK
Y
T
W
LOW WATER
CUTOFF PLUG
5432
1
VENT DAMPER
BN OR BN BK Y
BL
R
PK
BLYW
PR
PR
PR
PR
PR
PR
T
Y
BL
RW
T
PR
BL R Y
GY
GY
GY
Y
BK
BK
BL
BL
OR
OR
OROR
LOW FIRE
BK
BK
W
G
LOW WATER CUTOFF
W
PK
W
BK
BK
BK
G
SUPPLY
JUNCTION BOX
DISCONNECT POWER BEFORE SERVICING
SWITCH
MANUAL RESET
HIGH LIMIT
SWITCH
AUTO-RESET
HIGH LIMIT
VENT
DAMPER
PLUG
WHEN REPLACING WIRING, USE
WIRE OF EQUAL OR HIGHER
TEMPERATURE AND GAUGE.
GY
BK=BLACK
BL=BLUE
BN=BROWN
G=GREEN
GY=GRAY
OR=ORANGE
PK=PINK
PR=PURPLE
R=RED
T=TAN
W=WHITE
Y=YELLOW
LBL2731 REV. A
V
P
VENTER
C
R
2
1
*
*
USE ELECTRICAL CONNECTION 1& 2
COPPER-FIN (SOLUTION) ATMOSPHERIC BOILERS /
WATER HEATERS WIRING DIAGRAMS
Schematic Diagram – F9 Unit
90,000 - 399,999 Btu/hr Models
Wiring Diagram – F9 Unit
90,000 - 399,999 Btu/hr Models
2 of 4
PILOT
PILOT
MODULE
MODULE
IGNITION
IGNITION
BURNER GND
BURNER GND
GND
MV
MV
MV/PV
MV/PV
RWBL
RWBL
GND
24V
24V
PV
PV
Y
Y
G
G
GY
GY
SPARK
SPARK
BL
BL
BOX DEPICTS
OPTIONAL ITEMS
BOX DEPICTS
OPTIONAL ITEMS
LBL2732 REV. A
GY
LOUVER
RELAY
3
21
PLUG
PLUG
GY
GY
BL R Y
BL R Y
B
B
X
X
W
W
R
R
5
5
4
4
321
321
PLUG
PR
PR
WPR T
WPR T
Y
Y
R
R
C
P
V
GYGY
Y
T
T
RW
RW
R=RED
R=RED
T=TAN
W=WHITE
T=TAN
W=WHITE
PK=PINK
PK=PINK
GY=GRAY
GY=GRAY
OR=ORANGE
OR=ORANGE
BL=BLUE
BL=BLUE
BN=BROWN
BN=BROWN
BK=BLACK
BK=BLACK
Y=YELLOW
Y=YELLOW
PR=PURPLE
PR=PURPLE
G=GREEN
G=GREEN
PV
PV
MV
MV
MV
MV
PV
PV
HIGH LIMIT
AUTO-RESET
R
VENTER
315 & 360
ONLY
GY
LOUVER RELAY
LOUVER RELAY
SENSOR
SENSOR
TANK
TANK
INLET
SENSOR
INLET
SENSOR
BN OR BN BK Y
VENT DAMPER
BK
BK
INLET
INLET
SENSOR
SENSOR
OPERATOR
OPERATOR
RELAY
PUMP
RELAY
PUMP
OR
OR
VENT DAMPER
BK
BK
BL
BL
BL
BL
TANK
SYS/
TANK
SYS/
HIGH
HIGH
FIRE
FIRE
FIRE
FIRE
LOW
LOW
PR
PR
T
T
Y
Y
BL
BL
OR
OR
BN OR BN BK Y
15
15
20
20
10
10
OFFSET
OFFSET
0
0
HIGH-FIRE
HIGH-FIRE
5
5
14
14
13
13
12
12
15
15
11
11
10
10
9
9
5
5
8
8
6
6
7
7
DIFFERENTIAL
DIFFERENTIAL
220
200
220
200
180
180
240
240
160
160
SETPOINT
SETPOINT
OFF
OFF
140
140
120
120
R
R
BL
BL
NO
NO
C
C
FLOW
FLOW
ANY FAILURE
ANY FAILURE
CONTACT ON
CONTACT ON
VENT
VENT
SWITCH
SWITCH
DAMPER
DAMPER
1
1
5432
5432
PR
PR
PR
PR
SPILL
SWITCH
1
2
*
MANUAL RESET
HIGH LIMIT
OR
OR
OR
OR
PUMP DELAY
PUMP DELAY
LOW WATER CUTOFF
LOW WATER CUTOFF
PK
PK
BK
BK
(BLACK)
(BLACK)
24VDC
24VDC
RELAY
RELAY
DISCONNECT POWER BEFORE SERVICING
DISCONNECT POWER BEFORE SERVICING
PR
SWITCH
SWITCH
ROLLOUT
ROLLOUT
PR
PR
T
T
W
W
BK
BK
A
A
CIRCULATION
CIRCULATION
LOW WATER
LOW WATER
P2
P2
PUMP
PUMP
CUTOFF PLUG
CUTOFF PLUG
P1
P1
BL
BL
123
123
BK
Y
BK
Y
1
1
2
2
PK
PK
BK
BK
YWPR
YWPR
W
W
OR
OR
W
W
4
4
BN
BN
USE ELECTRICAL CONNECTION 1& 2
WIRE OF EQUAL OR HIGHER
TEMPERATURE AND GAUGE.
WHEN REPLACING WIRING, USE
*
Y
Y
BL
BL
G
G
TRANSFORMER
TRANSFORMER
W
W
BK
BK
W
W
BK
BK
G
G
JUNCTION BOX
JUNCTION BOX
POWER SUPPLY
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