Auxiliary High Blower Speed

When the High blower speed is selected at the front auxiliary HVAC control assembly, the front auxiliary HVAC control assembly applies a ground to the auxiliary high speed blower motor relay through the auxiliary blower motor high speed control circuit. When the relay closes its switch, voltage is provided by the battery positive voltage circuit. Voltage is sent directly to the auxiliary blower motor by the auxiliary blower motor supply voltage circuit. The auxiliary blower motor switch and auxiliary blower motor are grounded by the ground circuit.

When the High blower speed is selected at the rear auxiliary HVAC control assembly, the rear auxiliary HVAC control assembly applies a ground to the auxiliary high speed blower motor relay through the auxiliary blower motor high speed control circuit, the auxiliary blower motor switch control circuit, the auxiliary HVAC control processor, then through the REAR CNTL switch position on the front auxiliary HVAC control assembly. When the auxiliary high speed blower motor relay closes its switch, voltage is provided by the battery positive voltage circuit. Voltage is sent directly to the auxiliary blower motor by the auxiliary blower motor supply voltage circuit. The auxiliary blower motor switch and auxiliary blower motor are grounded by the ground circuit.