Carrier® Fan/Filter Status Switch Accessory

FEATURES

Filter Switch Operation
When the pressure switch is set up as a filter switch, the digital indicator light on the thermostat lights up when the filter is dirty and needs to be replaced. If direct digital controls are used, the filter status (CLEAN/DIRTY) is sent over the communications bus.

Fan Switch Operation
When the pressure switch is set up as a fan switch, the digital indicator light on the thermostat is lit when the indoor fan is operating. If the indoor fan is being told to operate by the thermostat and the indicator light is not lit, service the unit immediately. If direct digital controls are use, the indoor fan operation status (ON/OFF) is sent over the communications bus.

INCLUDES

• 1 Pressure Switch
• 1 Control Tube (16 in.)
• 1 Control Tube (32 in.)
• 1 Plastic Cap
• 1 Screw – 10AB X 5/8 in.