Roberts Gorden NDUSTRIA NHE Series, Installation, Operation & Service Manual

Page: 61 / 78

SECTION 10: W
IRING
57
10.3 Low Voltage Thermostat Wiring with Multiple Burners
10.4 Internal Wiring
N H
Gnd.
N H
Gnd.
L1
L2
Gnd.
120V-60 Hz
supply circuit
Low Voltage Thermostat
R C
W G
Y
1
2
3
4
5
6
COIL COIL Black
Black
White Red
Transformer Relay FRONT VIEW BACK VIEW
Burner 1 Burner 2
N H
Gnd.
Burner 3
N H
Gnd.
Burner 4
Purple
Red/Yellow
NOTE: Maximum 8 Burners Per Relay
NOTE:
24VAC thermostat
powered by others
when controlling
multiple burners
Low voltage black
jumper wire
connected inside all
burners between
Purple and Blue
wire; Yellow not used.
Description Part Number
DPDT Transformer Relay 90436300
POWER SUPPLY
120V 60 HZ
L1
L2
GAS
VALVE
GRN
BLK
WHT
MOTOR/BLOWER
GRN
BLK
BLK
BLK
BUSHING
TERMINAL
3
1
4
5
TRANSFORMER
GRN
IGNITION
MODULE
YEL
BRN
BLUE
YEL
PURPLE
YEL
WHT
PRESSURE SWITCH
PLUG
3 1
R1
R1
YEL
24V STAT
BY OTHERS
BLUE
BUSHING
TERMINAL
LED
+
ELECTRODE
DOOR
SWITCH
YEL
C RW
NOTES:
NO TERMINAL BUSHING
ON HARSH ENVIRONMENT HEATERS,
THERMOSTAT CONNECTIONS
MADE INTERNAL
SEE NOTE 1
TH
C1
V1
C2
S1
V2
GND
BLK
N.O.
COM