Low Voltage Thermostat Wiring; Low Voltage Thermostat Wiring With Multiple Burners - Roberts Gorden CTH2 Series Installation, Operation And Service Manual

ROBERTS GORDON ® CTH2-Series S
WARNING
Electrical Shock Hazard
Disconnect electrical power and gas supply before
servicing.
This appliance must be connected
to a properly grounded electrical source.
Failure to follow these instructions can result in
death or electrical shock.

Low Voltage Thermostat Wiring

120V-60Hz
Supply Circuit
L1
L2
Gnd.

Low Voltage Thermostat Wiring with Multiple Burners

Transformer Relay
Black
Purple
Black
120V-60Hz
supply circuit
L1
L2
Gnd.
When using 1-2 burners, use SPDT
Transformer Relay P/N 90417600
When using 3-4 burners, use DPDT
Transformer Relay P/N 90436300
© 2004 Roberts-Gordon
S
UBMITTAL HEET
FRONT VIEW
1
3
2
4 6
COIL COIL
5
White Red
Red/Yellow
APPLICATIONS, ENGINEERING AND DETAILED GUIDANCE ON SYSTEMS DESIGN, INSTALLATION AND PRODUCT PERFORMANCE IS AVAILABLE UPON REQUEST. ROBERTS GORDON
INSTALLED ONLY IN ACCORDANCE WITH LOCAL LAWS, CODES AND REGULATIONS, AND ONLY BY A CONTRACTOR QUALIFIED IN THE INSTALLATION AND SERVICE OF GAS-FIRED HEATING EQUIPMENT.
T
H N
Low voltage
Gnd.
thermostat
BACK VIEW
R C
W G
Y
Burner 1
Gnd.
H N
Burner 3
Gnd.
H N
Low voltage
terminal detail
Low Voltage Thermostat
P/N 90425100
Burner 2
Low Voltage
Terminal Detail
on all Burners
Gnd.
H N
Burner 4
Gnd.
H N
® PRODUCTS ARE TO BE