PEC Plus user manual Connecting equipment to your PEC Plus
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Connecting variable-stage cooling elements
Variable cooling elements include equipment such as variable-speed fans.
Only permanent split capacitor motors appropriate for variable speed control, or
shaded pole motors, can be used on the variable stages.
If you are using three-phase power, connect the PEC Plus and the variable cooling
equipment to the same phase. For more information, read
Using three-phase
power
on page 20.
The ratings of the equipment must not exceed the ratings of your PEC Plus’
variable stages.
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
Refer to
Appendix D: Installation worksheet on page 84 and Appendix E:
Configuration worksheets
on page 86 when installing variable-stage elements.
To connect variable-stage cooling elements
Connect variable cooling elements to your PEC Plus as shown below.
Junction box
VARI-1
L1
L2/NEUTRAL
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