Electrical Connection; Testing - Keho ATS-803XXE5 Installation, Operation, And Parts Manual

AERATION FAN – SUPER-FLOW FULL CENTRIFUGAL FAN
Damage will occur to the fan if not properly supported.

3.9. Electrical Connection

Wiring must be completed by a qualified electrician in accordance with all applicable local codes and standards.
Provisions of the local electrical code take precedence over the requirements stated in this manual.
• The centrifugal fan is not suitable for use with solid-state speed controls.
• Voltage, amperage, and rpm's are located on the specification plate on the fan housing.
• A wiring diagram is located on the inside of the fan electrical box lid.
• Use a separate circuit from the distribution panel for the fan.
• Installing a time-delayed circuit breaker will allow for a higher tolerance to the motor start-up current
(minimum requirement is 2.5 times the maximum running amperage on motor nameplate). Check with your
local electrical code for more details.
• Install an independent disconnect switch to isolate the fan from the electrical supply. The switch should be
near the fan and must be capable of being locked out by maintenance personnel while servicing the unit.
• Ensure proper cable gauge between the power source and the fan unit.
Connecting the incorrect cable gauge will result in low voltage supply to the motor, causing
premature failure.
Note
All electrical connections and wiring must follow all applicable local codes and standards.

3.10. Testing

Inspect the installation prior to starting the fan for testing.
1. Check for any loose items or debris that could be drawn into the fan or dislodged by the fan discharge.
Check the interior of the fan as well.
2. Ensure that the fan inlet is not obstructed or restricted in any way.
3. For Centrifugal Fans: Check the tightness of all mounting nuts and bolts.
4. Ensure guards are in place.
5. "Bump" the starter to check for proper airflow into the bin.
Transition and guards / inlet screen must be fully installed or serious injury could result.
6. Start the fan and check for unusual sounds or excessive vibration (if required, refer to
Troubleshooting on page
7. Do not run the fan for more than a few seconds if the transition is not fully installed.
CNA-3733 R2
27).
3. INSTALLATION
Section 6. –
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