The VH7200 humidity controller series has been specifically designed to control humidification and dehumidification equipment such as steam header direct injection, desiccant wheel, or stand alone humidification and dehumidification equipment. This product features a complete embedded humidity control solution with an intuitive backlit LCD display that guides the installer through the configuration steps, making the process extremely simple. Accurate relative humidity control is achieved via the product's unique PI time proportional control algorithm, which virtually eliminates humidity offset associated with traditional, differential-based humidity controllers.
All models contain a binary input, which can be set by the user to monitor an electrode humidifier canister service status or may be used as a general purpose service indicator. Models are available with more advanced features such as discharge humidity proportional high limit and indoor humidity set point reset based upon outdoor air temperature to conserve energy and eliminate condensation on windows and structure.
- Embedded humidification sequence (0-10 Vcd output) and dehumidification sequence (dry contact)
- Internal RH sensor embedded
- Proportional high limit override (VH7270 models only)
- Humidity set point reset based on outdoor temperature (VH7270 models only)
- Sensor failure protection
- PI time proportioning algorithm
- 2 digit inputs
- Unique configuration key
- Lockable keypad
- EEPROM memory
- Optional remote humidity sensor
Model | Application | Humidification Outputs | Dehumidification Outputs |
VH7270K1000 | Model with outdoor reset & proportional high limit | 0-10 Vdc & On/Off 24 Vac | On-Off 24 Vac |
VH7270F1000 | Model with outdoor reset & proportional high limit | 0-10 Vdc | On-Off 24 Vac |
VH7200A1000 | Model with outdoor reset & proportional high limit | On/Off 24 Vac | On-Off 24 Vac |