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Venstar ACC0430 Owner's Manual
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Venstar ACC0430 Owner's Manual

Venstar ACC0430 Owner's Manual

Humidity module
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When installed, the thermostat may have* the ability to:
Control a compatible humidifier
Display the relative humidity level as measured at
the thermostat
Dehumidify (cool to dehumidify, reheat, control
a dehum terminal equipped furnace board)
*
Not all thermostat models support every feature listed above.
Compatible with thermostat models: T1800, T2700, T2800
T2900. Consult VENSTAR for a complete list.
OWNER'S
OWNER'S
MANUAL
MANUAL
Venstar Inc. 08/07
HUMIDITY MODULE
ACC0430
Humidity
Humidity
Module
Module

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Summary of Contents for Venstar ACC0430

  • Page 1 Dehumidify (cool to dehumidify, reheat, control a dehum terminal equipped furnace board) Not all thermostat models support every feature listed above. Compatible with thermostat models: T1800, T2700, T2800 T2900. Consult VENSTAR for a complete list. OWNER’S OWNER’S MANUAL MANUAL...
  • Page 2 Overview This unique accessory allows you to view and control the humidity level using only your thermostat and HVAC unit. Depending on the model number of your thermostat the humidification options are: View the ambient humidity at the thermostat location Control a humidifier with the HUM terminal on the thermostat Dehumidify using only the air conditioner...

  • Page 3: Installation

    RS+5 CKGND INSTALL HUMIDITY MODULE WITH SENSING RSGND ELEMENT OUTWARD Humidity Module Model ACC0430 Plug the module into the appropriate connection terminal on the circuit board of the thermostat, as shown. Humidity Module Humidity Module plug located on the thermostat circuit board.
  • Page 4 Humidity Operation To control a MISC output for humidification, place the MISC1, MISC2, or MISC3 jumper on the term- inal 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.
  • Page 5 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.
  • Page 6 Dehumidifying With Air Conditioning* Cool to Dehumidify: If Cool to Dehumidify is on and the Humidity Module is installed, the thermo- stat 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...
  • Page 7 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.
  • Page 8 The Up and Down buttons alter the flashing icon. The mode button advances the display to the next screen. Rev. 1 www.venstar.com Rev. 1 www.venstar.com T2700 Humidity - Press the Humidity button to display the humidity screens.

  • Page 9: Warranty

    This warranty gives you specific legal rights and you may also have other rights which may vary from state to state. Humidity Module ACC0430 Tested to Comply with FCC Standards P/N 88-628 Rev. 1...