Spectrum RRSHA3 Series, User Manual

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ENM-3600-00
RRSHA Series Hot Air Blower User Manual
4 Seasonal Maintenance
4.1 Pre-Winter Maintenance
4.1.1 Hot Air Blower Main Housing Unit

Inspect the unit’s hinged cover door for damage that would prevent it from being shut
and locked.

If installed as Model Suffix “M”, inspect (and tighten if necessary) the bolts
attaching the unit to the Height Adjustment Legs.
4.1.2 Circuit Panel

Verify the main power source to the RRSHA Hot Air Blower is off.

Disconnect the power wires coming into the main housing unit from the main breaker.

Open the main housing unit’s hinged cover door and reconnect all wires coming from
the Wiring Box (or direct from the heating elements) to their respective terminal
blocks.

Reconnect the power wires coming into the main housing unit from the main breaker.

Close the main housing unit’s hinged cover door.

Turn on the main power source to the RRSHA Hot Air Blower.

Verify the RRSHA Hot Air Blower has power by verifying the green LED on the Snow
Sensor is illuminated.
4.1.3 Manual Activation

Set the Blower Power switch to On .

Verify the RRSHA Hot Air Blower is activated by verifying the green LED on the Snow Sensor
is blinking.

Listen for the circuits to engage. For units that also power optional equipment, the
secondary circuit turns on after the primary circuit according to the secondary circuit’s Delay
Timer setting.

Walk to the heaters and take the surface temperature to verify heaters are getting power
and are heating.

Leave the RRSHA Hot Air Blower activated for 10-15 minutes to allow the heaters to come
up to temperature and verify there are no GFI faults or heater malfunctions.

Verify the element resistance using a multimeter. Take measurements across two phases on
the load side of each element contactor. Refer to tables in Section 5 (Specifications). If the
results deviate significantly from these tables, this would indicate heater elements are open
or have short circuited and need replacement.