12 of 48
W
R
Provide a 15 A circuit for the input power.
• Connect the 115 V (ac) line wire (L) to terminal 29.
• Connect the neutral wire (N) to terminal 30.
N
L
Power
29
L
30
N
Wiring the Input Power
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If the heat relay is operating a pump:
The pump can be rated up to
230 V (ac), 5 A, 1/3 hp
and switched through
terminals 25 and 26. For simplicity in wiring and troubleshooting, a separate
breaker for each pump is recommended.
• Connect the power source line wire (L) to terminal 26.
• Connect a wire from terminal 25 to the pump L.
• Connect a wire from the pump N back to the power source neutral.
• Connect the ground wire (G) to the pump.
If the heat relay is wired to an electrical contactor:
• Connect a wire from terminal 25 to the electrical contactor R.
• Connect a wire from terminal 26 to the electrical contactor C.
If the heat relay is wired to a 24 V(ac) on-off valve:
• Connect the power source red wire (R) to terminal 25.
• Connect a wire from terminal 26 to the valve R.
• Connect a wire from the valve C to the power source common.
Wiring the Heat Relay
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A system pump requiring up to
230 V (ac), 5 A, 1/3 hp
can be switched through
terminals 27 and 28. For simplicity in wiring and troubleshooting, a separate
breaker for each pump is recommended.
• Connect the power source line wire (L) to terminal 28.
• Connect a wire from terminal 27 to the pump L.
• Connect a wire from the pump N back to the power source neutral.
• Connect the ground wire (G) to the pump.
Wiring the System Pump
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-------------------------------------------------------------------------------
L
N
G
L
N
G
Heat
Relay
25 26
R
C
R
C
Heat
Relay
25 26
Heat
Relay
25 26
L
N
G
L
N
G
System
Pump
28
27
