OWNER’S MANUAL P/N 33CSHUMID-01 Humidity Module When installed, the thermostat may have* the ability to: Control a compatible humidifier Display relative humidity level as measured at the thermostat Dehumidify (Cool to dehumidify, reheat, control a dehum. terminal equipped furnace board.
Overview This unique accessory allows you to view and control the humidity level using only your thermostat and HVAC unit.
Installation The humidity accessory is inserted into the humidity plug on the back of the thermostat and the Humidity Jumper is set for HUM operation. Humidity Jumper Set this jumper for HUM.
Humidity Operation To control a MISC output for humidification, place the MISC1, MISC2, or MISC3 jumper on the terminal labeled HUM. This will supply 24VAC to the selected MISC terminal on the backplate of the thermostat when the humidity in the home falls below the setpoint you have chosen. The value for this setpoint ranges from 0% to 60%. Only one of the three outputs (MISC1, MISC2, or MISC3) is required to have this jumper.
Dehumidifying With The DEHUM Terminal* Dehum Terminal: To control a MISC output for dehumidification, place the MISC1, MISC2, or MISC3 jumper on the terminal labeled DEHUM. This will supply 24VAC to the selected MISC terminal when the humidity in the home is above the setpoint you have chosen. Only one of the three outputs (MISC1, MISC2, or MISC3) is required to have a jumper. For more information regarding the MISC1, MISC2, and MISC3 outputs, please consult your thermostat Owner’s Manual.
Dehumidifying With Air Conditioning* Cool to Dehumidify: If Cool to Dehumidify is on and the Humidity Module is installed, the thermostat has the ability to initiate a cooling cycle for advanced dehumidification operation. When the thermostat detects the humidity percentage is above the setpoint for dehumidification, and heating or cooling is not on, the thermostat will force the compressor to run with the fan, thus reducing moisture in the air.
Reheat with Cool to Dehumidify* Reheat: This feature allows the thermostat to turn on Electric Heating (W2) during Cool to Dehumidify (see previous page) to maintain room temperature until the dehumidification setpoint is reached. The cooling cycle will allow for the dehumidification of the air to occur while the Electric Heating will allow for a constant room temperature. If Reheat is enabled, the Aux icon will appear on the display during Cool to Dehumidify operation.
Label Selection and Placement The Humidity Module package includes two door labels. Depending on which model thermostat you have purchased, choose the correct label and affix it to the thermostat as shown in the diagrams below. 33CS450 & 420 Time Period Programming Press the Program button. The Up and Down buttons modify the flashing icons. The Mode button is used to advance to the next step.
Warranty One-Year Warranty - This Product is warranted to be free from defects in material and workmanship.
