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Enerco | enerRadiant® XL Series Heater Operating Instructions and Owner’s Manual
SECTION 6
Wiring
Heaters are normally controlled by thermostats. Line voltage
thermostats are wired directly (see Figure 18a), the recommended
24V thermostats use a relay (see Figure 18b). Heaters must be
grounded in accordance with the National Electric Code ANSI/NFPA -
70 - latest version. Heaters may also be controlled with a manual line
voltage switch or timer switch in place of the thermostat.
FIGURE 18a: Line Voltage Thermostat Wiring
T
H
N
120v – 60 Hz
White
White
Green
Green
Supply Circuit
120v – 60 Hz
Supply Circuit
Burners
(Maximum – 2 per Thermostat)
Burners
(Maximum – 1 per Thermostat)
Black
Black
H
N
T
FIGURE 18b: Low Line Voltage Thermostat Wiring
T
H
N
120v – 60 Hz
White
White
Green
Green
Supply Circuit
120v – 60 Hz
Supply Circuit
Burners
(Maximum – 2 per Thermostat)
Burners
(Maximum – 1 per Thermostat)
Black
Black
H
N
T
FIGURE 20: Ener-Radiant XL Burner Internal Wiring
B C
W
Black
Black
White
White
Burner 3
120V – 60Hz
Supply Circuit
Burner 1
Burner 2Burner 4
White
N HN H
Red
Red/Yellow*
Purple*
Black
Green
White
G Y
3
6
5
4
2
T
Transformer Relay
FIGURE 19: Wiring of Low Voltage Thermostat and Relay
When using 1-2 burners, use SPDT Transformer Relay / Stk. # 00172
When using 3-4 burners, use DPDT Transformer Relay / Stk. # 00183
Wires marked with an asterisk (*) are for use only with DPDT
Transformer Relay.
• If any of the original wire as supplied with the
appliance must be replaced, it must be replace with
wiring material having a temperature rating of at least
105°C and 600 volts.
• Each burner must be electrically grounded in
accordance with the National Electric Code ANSI/NFPA
- 70 - latest version.
FIGURE 21: Ener-Radiant XL Burner Internal Wiring Ladder
Diagram
VAC
120
120V
24V
Black
Black
Purple
Yellow
Yellow
Black
Black
Black
Green
Green
Orange
Transformer
White
White
White
THERMOSTAT
White
Blue
Gas Valve
Air Switch
Ignitor
Sensor
Motor / Blower
Door Switch
Terminal
Bushing
120V
L2
(NEUTRAL)
White
White
White
White
White
White
Gray
Orange
Transfomer
Thermostat
Air Switch
Gas Valve
Door Switch
Motor / Blower
Ignitor
Sensor
Blue
Yellow
Yellow
Purple
Black
Black
Black
Black
L2 (HOT)
24V
Low Voltage Thermostat
Stk. #10368