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HeatStep™ Wire Installation Manual 17
Typical Electrical Wiring Diagram with HeatStep™ Control and Relay(s)
Dedicated 120VAC or 240-VAC, 20-amp (maximum) circuit.
Ground
Ground
120/240 VAC
120/240 Control
VAC
HeatStep
HeatStep
Control
Load
1
Black
Black1
Load
Black
Line 1
Black
Line 1
Sensor Wire
(no
polarity)
Sensor
Wire
120Black
VAC or 240 VAC Black
120 VAC orWhite
240 VAC
(maximum 15 amps)
Load 2
White
Line 2
White
White
(no polarity)
Load 2
White
Line 2
White
Two or more120 VAC or
240
VAC
Cables
Two
orHeating
more120
VAC or
(maximum
15 amps)
240
VAC Heating
Cables
Use size 18 to 24-gauge 2
conductor shielded wire up
to 100
(30m)
in length
Use
sizefeet
18 to
24-gauge
2
to connect
HeatStep
conductor
shielded
wire up
Control
to
HeatStep
Relay.
to 100 feet (30m) in length
to connect HeatStep
Control to HeatStep Relay.
Ground
120/240 VAC
HeatStep Relay
Ground
Load
1
120/240
VAC
Black
HeatStep Relay
Line 1
Black
Black
Load 1
Black
120 VAC or 240 VAC Line 1
BlackWhite
Black
Line 2
Load 2
White
White
120 VAC or 240 VAC
120/240 VAC
HeatStep Control
Two or more120 VAC or
240 VAC Heating Cables
(maximum 15 amps)
Load 2
White
Line 2
White
White
Two or more120 VAC or
240 VAC Heating Cables
(maximum 15 amps)
120/240 VAC
HeatStep Relay
120/240 VAC
HeatStep Relay
Diagram for connection of signal wire between HeatStep™ Control and Relays
120/240 VAC
HeatStep Relay
Relin
120/240 VAC
HeatStep Relay
Relout
Relin
Relout
Relin
Up to 10 HeatStep Relays
can be connected to
one HeatStep Control
Relin
Relin
Relout
Relout
Up to 10 HeatStep Relays
can be connected to
one HeatStep Control
Relin
Relin
Relout
Relout
Relin
120/240 VAC
HeatStep Control
Setback
Relin
Relout
2
3
4
5
Relin
Relin
Relin
Relout
Relin
Relin
2
3
4
5
Relout
2
2
3
3
Observe polarity when connecting relays
4
4
5
5
Relin
Setback
Relout
2
3
4
5
2
3
4
Sensor
5
Relin
Relout
Relout
Sensor
Observe polarity when connecting relays
NOTE: Installation must be performed by a qualified licensed electrician in accordance with local building
and electrical codes, ANSI/NFPA 70 (NEC Article 424) and CEC Part 1 Section 62 where applicable.