Chapter 2: Installation
28
Phason
To connect single-stage heating or cooling elements
Connect single-speed heating or cooling elements to the Supra as shown in the following diagrams.
Gas-fired furnace or brooder
All other single-stage heating/cooling
Connecting variable heating or cooling elements
Variable heating or cooling elements include equipment such as variable-speed fans or heat mats.
Supra variable stage ratings
: 10 A at 120/230 VAC, general-purpose (resistive)
7 FLA at 120/230 VAC, PSC motor
1/2 HP at 120 VAC, 1 HP at 230 VAC, PSC motor
Variable-stage fuses
:
15 A, 250 VAC ABC-type ceramic
Only permanent split capacitor motors appropriate for variable speed control, or
shaded pole motors, can be used on the variable stages.
The ratings of the equipment must not exceed the ratings of the Supra’s variable
stages.
If you are using three-phase power, connect the Supra and the variable heating
or cooling equipment to the same phase. For more information, read
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