Install Instructions
16 SunTouch Space Warming Manual
Appendix 4. 120V/240V Control Wiring Diagrams
Typical Electrical Wiring Diagram with SunStat Control (120/240VAC)
Dedicated 120 or 240VAC, 20-amp (maximum) circuit.
Typical Electrical Wiring Diagram with SunStat Control (120/240VAC)
Dedicated 120 or 240VAC, 20-amp (maximum) circuit.
Ground
Black
Black
Black
White
White
White
Line 1
Load 1
Load 2
Line 2
120 VAC or 240 VAC
Sensor Wire
(no polarity)
Electric Mat
(maximum 15 amps)
120/240 VAC
SunStat Control
Two or more120 VAC or
240 VAC Heating Mats
(maximum 15 amps)
CAUTION: Make sure 120 VAC
is supplied to 120VAC cables and
240VAC is supplied to 240VAC
cables. Otherwise, dangerous
overheating and possible fire
hazard can result.
Ground
Black
Black
Black
White
White
White
Line 1
Load 1
Load 2
Line 2
120 VAC or 240 VAC
Sensor Wire
(no polarity)
120/240 VAC
SunStat Control
Ground
Black
Black
Black
White
White
White
Line 1
Load 1
Load 2
Line 2
120 VAC or 240 VAC
Sensor Wire
(no polarity)
Electric Mat
(maximum 15 amps)
120/240 VAC
SunStat Control
Two or more120 VAC or
240 VAC Heating Mats
(maximum 15 amps)
CAUTION: Make sure 120 VAC
is supplied to 120VAC cables and
240VAC is supplied to 240VAC
cables. Otherwise, dangerous
overheating and possible fire
hazard can result.
Ground
Black
Black
Black
White
White
White
Line 1
Load 1
Load 2
Line 2
120 VAC or 240 VAC
Sensor Wire
(no polarity)
120/240 VAC
SunStat Control
All electrical work must be done by a qualified licensed electrician in accordance with local
building and electrical codes, and the National Electrical Code (NEC), especially Article 424,
Part IX of the NEC, ANSI/NFPA70 and Section 62 of CEC Part 1.
CAUTION: Make sure 120 VAC
is supplied to 120 VAC and 240
VAC is supplied to 240VAC
mats. Otherwise, dangerous
overheating and possible re
hazard can result.
CAUTION: Make sure 120 VAC
is supplied to 120 VAC and 240
VAC is supplied to 240VAC
mats. Otherwise, dangerous
overheating and possible re
hazard can result.