Marvair Airxcel CommStat4 HVAC Controller
Product Details:
A single CommStat 4 will control two redundant air conditioners or heat pumps, but has the capability to be daisy chained with a second CommStat 4 unit for controlling up to four air conditioners or heat pumps in a shelter. The CommStat 4 has seven outputs for remote alarms or notification.
A unique Marvair feature, the Comfort button, allows a service tech to easily change the temperature to provide a comfortable working environment. After 90 minutes, the temperature set points automatically revert back to the programmed temperature set points. The CommStat 4 also stores the last 10 ten faults that were registered.
FEATURES / BENEFITS
THERMOSTATS
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Thermostat Range:
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Cooling: 65° - 95°F (18° - 35°C) in 1° increments.
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Heating: 50° - 80°F (10° - 27°C) in 1° increments.
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Differential:
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Adjustable ON-OFF differential for both Stage 1 and Stage 2
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Adjustable changeover differential between heating and cooling.
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Control Voltage: 24 VAC
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COMMSTAT 4 INPUTS
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Input power
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Modem Connection
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Control voltage
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Line Voltage
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Temperature Sensors
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Smoke Detector
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Hydrogen Detector
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Generator Relay
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Economizer Mode Status Monitoring
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Lockout Relay
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Aux 1/ Aux 2
