PEC Plus user manual Connecting equipment to your PEC Plus
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Connecting single-stage heating or cooling elements
Heating or cooling elements include equipment such as electric heaters, furnaces, single-speed fans,
and curtains.
The ratings of the equipment must not exceed the ratings of your PEC Plus’ relays.
PEC Plus relay ratings: 10 A at 120/230 VAC, general-purpose (resistive)
1/3 HP at 120 VAC, 1/2 HP at 230 VAC
360 W tungsten at 120 VAC
Refer to
Appendix D: Installation worksheet on page 84 and Appendix E:
Configuration worksheets
on page 86 when installing single-stage heating or
cooling elements.
To connect single-stage heating or cooling elements
Connect single-speed heating or cooling elements to your PEC Plus as shown below.
Gas furnaces using hot-surface ignition or glow plug can draw more current than
indicated on their nameplate and require power contactors. For more information,
read your furnace dealer.
All other single-speed heating or cooling elementsGas-fired furnace or brooder
Junction box
STG-1
L1
L2/NEUTRAL
Thermostat
inputs
STG-1
L1
L2/NEUTRAL
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