Electric Wiring - Heat Wise SU-3 Manual

These gas burners are manufactured for use with 120 volt, 60 cycle, single-phase electric current.
The installation must comply and be grounded in accordance with the National Board of Fire
Underwriters and National Electric Code ANSI/NFPA No. 70-1987 (or the latest addition). All
applicable local codes should be followed as well.
Installation wiring should be wired through each limit control or interlock, while operating
controls (like the thermostat) should be treated as 24-Volt wiring. The burner has its own 24 Volt AC
power supply. Do not add a 24 Volt AC transformer for the burner wiring. Do not use the 24 Volt
transformer found on the burner to power other items in the heating system, such as thermostats, spill
switches, etc. See the sample wiring diagrams provided below:
Fig. 6 Wiring the SU-4 with a switching relay

Electric Wiring

Wiring Diagrams
10