4-522.4
VALVE
VIOLET
V
Y
Y
Y
Y
V
Single-phase,intermittent ignition,
low voltage thermostat
W
W
BK
W
OR
W
BK
T
T
CAD
CELL
IGNITOR
BL/W tr
JUNCTION BOX
ON BURNER
BURNER HOUSING
PRIMARY
CONTROL
BURNER
MOTOR
(BY OTHERS)
LOW
VOLT.
THERM.
ALL WIRING MUST CONFORM TO
NATIONAL ELECTRIC CODE NFPA #70
AND APPLICABLE LOCAL CODES
FUSED DISCONNECT
SWITCH (BY OTHERS)
115V/60 HZ 1Ø
GR
FAN
MOTOR
FAN & LIMIT
CONTROL
FAN LIMIT
W
BK
USE COPPER
CONDUCTORS ONLY
W
BK
BL
BK
R
FIELD WIRING
JUNCTION BOX
(ON HEATER)
WIRE NUT
FIELD
FACTORY
Wiring Legend
PRIMARY
CONTROL
T
T
LOW VOLT.
THERMOSTAT
CAD CELL
IGNITOR
BURNER
MOTOR
115V/60HZ/1Ø
FAN
MOTOR
FAN
SWITCH
LIMIT
CONTROL
GROUND
IN J-BOX
5H70830B REV. B
W
OR
BK
FUSED DISCONNECT
SWITCH (BY OTHERS)
FIELD WIRING
CONNECTIONS
(WIRE NUTS
BY OTHERS)
EQUIPMENT
GROUND
GROUND
BL/W tr
VALVE
BL/W tr
installation
figure .1
single unit Wiring diagram
115V
1
2
W
BK
BOOSTER PUMP RELAY - BY OTHERS
(HONEYWELL RA89A, W-R809A-3, OR EQUIVALENT)
R
W
25V
4
3
T
T
BURNER
HOUSING
PRIMARY
CONTROL
This diagram is provided for
reference only. System operation
and compliance with local codes is
the responsibility of the installer.
Note: All wiring shown as dashed
lines is field wiring.
FIELD WIRING
JUNCTION BOX
(ON HEATER)
115V/60HZ/1Ø
GROUND
IN J-BOX
FUSED DISCONNECT
SWITCH (BY OTHERS)
PRESSURE
SWITCH
ACCESSORY
BURNER
MOTOR
LOW VOLTAGE
T-STAT
(BY OTHERS)
UNIT #1
T
T
BURNER
HOUSING
PRIMARY
CONTROL
115V/60HZ/1Ø
FUSED DISCONNECT
SWITCH (BY OTHERS)
BURNER
MOTOR
BOOSTER PUMP
MOTOR
(BY OTHERS)
UNIT #2
T
T
BURNER
HOUSING
PRIMARY
CONTROL
115V/60HZ/1Ø
FUSED DISCONNECT
SWITCH (BY OTHERS)
BURNER
MOTOR
LOW VOLTAGE
T-STAT
(BY OTHERS)
UNIT #3
115V/60HZ/1Ø
GROUND
FUSED DISCONNECT
SWITCH (BY OTHERS)
PRESSURE
SWITCH
ACCESSORY
PRESSURE
SWITCH
ACCESSORY
GROUND
FIELD WIRING
JUNCTION BOX
(ON HEATER)
GROUND
IN J-BOX
FIELD WIRING
JUNCTION BOX
(ON HEATER)
GROUND
IN J-BOX
LOW VOLTAGE
T-STAT
(BY OTHERS)
figure .2
typical multiple unit installation and Booster Pump Wiring diagram
WARNING
All appliances must be wired strictly in accordance
with wiring diagram furnished with the appliance.
Any wiring different from the wiring diagram could
result in a hazard to persons and property.