Intac® Microprocessor
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Description
An INTAC® programmable electronic microprocessor humidifier control system can be mounted and pre-wired to the humidifier control panel door. All humidifier electrical, ground, and control terminal connections are enclosed in an ETL listed NEMA 12 enclosure. The INTAC® controller provides the following standard features:
- Self-diagnostics and system verification on start-up.
- Evaporating reservoir water level verification, control and safety interlock. The controller is compatible with all water types.
- Automatic reservoir drain and flush system. The controller periodically drains and flushes the reservoir according to the actual accumulated "run" time (except RO/DI water models).
- Seasonal drain system automatically drains the humidifier after a selected "NON-USE" period. The controller can automatically reset the humidifier on a call for humidity (if utilized).
- Terminal connections to accept virtually all control input signals. Input control range is selected as an "ON-SCREEN" prompt.
- Provides two lines of system messaging on a vacuum fluorescent display screen, LED operational indication and keypad parameter entry system.
- The Display Loop includes: System Status, Actual Space RH, Duct RH (optional), High-Limit RH (optional), Outdoor Air Temperature (optional), Power Output, Humidifier/System Capacity (in lbs/hr or kg/hr) and Control Type.
- Time-to-Service message.
- Numbered screen prompts for set-up and service identification.
- Full "ON-SCREEN" help information at all displays, prompts, alarms, or errors. The "HELP" message includes on screen diagnostic assistance.
- Networking and BAS communication ports. Communication ports provide two-way communication between the INTAC® controller and the Building Automation System (BAS), if utilized.
- High/Low humidity deviation alarm contacts (modulating control only).
- Fault alarm contacts.
Optional features
- Time Cycle Modulation. Provides 0-100% time proportioned control of the heater output. A compatible humidity sensor can be shipped loose for field installation (±3-4% RH).
- SCR Modulation. Provides 0-100% power modulation of the heater outputs down to a one-second cycle rate. A compatible humidity sensor can be shipped loose for field installation (±1-2% RH).
- Variable Air Volume (VAV) anticipation control. The INTAC® software accepts a modulating high-limit humidity input and space controlling RH input, modulating the output to prevent over saturation. A compatible humidity sensor can be shipped loose for field installation.
- Cold weather relative humidity reset. The INTAC® software accepts a modulating temperature input and automatically reduces the space RH set-point on a drop in the outside temperature. The reduction of the RH set-point during cold weather periods prevents damage due to interior window condensation.
- Reservoir thermocouple water control. The INTAC® software provides stand-by water sensing and freeze protection.
- A remote wall mount INTAC® user interface keypad/display module is furnished.
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Intac® Microprocessor
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