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Natural ventilation controller

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Automatic temperature-based control


Range: -13 to 125°F (-25 to 51°C)


Six-step growth curve


Programmable On and Off durations for the open and close relays

1 to 900 seconds (up to 15 minutes)


Programmable Idle band

1.0 to 10.0°F (0.6 to 5.5°C)


Programmable heater hysteresis

0.3 to 5.0°F (0.2 to 2.8°C)


Programmable high and low temperature alarms


Two curtain relays (one open, one close)

Heater control relay

 


Incoming power

85 to 264 VAC, 50/60 Hz


Open/close/heat relays

15 A at 120/230 VAC, resistive load

1/2 HP at 120 VAC, 1 HP at 230 VAC


Alarm relay

0.4 A at 125 VAC, 2.0 A at 30 VDC, resistive load

0.2 A at 125 VAC, 1.0 A at 30 VDC, inductive load

 

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