5
1.
Check the power source to see if it is compatible with the requirements of the provided system. The AFC
wiring diagram lists the proper phase, voltage, and amp load.
2.
Verify input power voltage before connecting to starters or contactors.
3.
Check rotation of fan(s). Exhaust fans will move some air in reverse (See rotation arrow on fan). To
correct rotation of fan(s), reverse any two leads from the 3 Ph starter to the fan.
4.
When wiring to a Larkin Industries Tempered MUA unit, a separate Start-Stop control circuit must be
connected to the Tempered MUA unit from the control panel, or the unit will not operate. (See Heated
MUA unit wiring diagram)
Note: The input power wiring for Tempered MUA unit must be pulled from the breaker panel directly to
the Tempered MUA unit.
*Only control wiring should be connected from the AFC control box to the Tempered MUA unit
.
Field Wiring Requirements for Control Panel
Control Circuit:
Field wire 120 VAC 1 Phase 15 AMP to the Control Panel terminals Control Hot (CH), Control
Neutral (CN) and Ground (GND) from breaker panel.
Control circuit should not be wired to a shunt trip
breaker
.
Light Circuit:
Field wire 120 VAC 1Phase 15 AMP circuit to the Control Box terminals Light Hot (LH), Light
Neutral (LN) and Ground (GND) from breaker panel.
Hood Lights:
Field wire hood light(s) from the hood light junction box to the Control Box terminals Hood Light Hot
(HLH), Neutral (N) and Ground (GND).
Summary of Contents for Auto Fan Control
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