The Hoffman Controls 906-13V(AC) Series thermostat is designed to provide a proportional 2-10V DC output signal. The Span is proportional over 2ºF. The thermostat has an automatic or manual changeover mode capability that allows the thermostat to function in a Direct Acting (cooling) or Reverse Acting (heating) mode. The thermostat’s output signal is derived from a 10K thermistor that produces the DC output in millivolts. The thermostat range is 65º-85ºF in one degree F markings. A Hoffman Controls remote sensor with wall set point is also available. A remote manual, or automatic, “On-Off” switch is optional to power the thermostat with 24V AC.
The Direct or Reversing mode function can be selected by the installer permanently as would be required for the application. This mode function could be manually determined by a remote switch closure, or automatically determined by an aquastat in the air distribution system, or by the heating or cooling medium. The accessory aquastat (P/N 510-0075-002), closes at temperatures above 88ºF and opens at temperatures below 68ºF. The aquastat is used to indicate the temperature of the fluid that is available in the coil (heat exchanger). Switch closure programs the thermostat for Reverse Acting (heating) while switched open provides a Direct Acting (cooling) function. The 906-13V(AC) Series thermostats are miniature and horizontal in type and in design, and come furnished with a base plate for mounting directly to the wall or a 2×4 J Box.
(Mini, 24VAC, 2-10VDC Output, Use with 890-6DSQ Sequencer)
Hoffman Controls 906-13V(AC) Features:
- Proportional control signal
- Responsive time constant
- Wall or remote temperature sensing
Hoffman Controls 906-13V(AC) Specifications:
- Series – 906-13V(AC)
- Power – 24V AC
- Min/Max – 20-30V AC
- VA – 4.0
- Span – 2ºF
- Output Signals – 2-10V DC
- Set Point Range – 65º-85ºF
- Sensor Output – 10K
- Accuracy – +/- 0.5ºF
- Standard Features:
- System Switch (By remote) – On/Off
- Mode – Direct or Reverse
- Changeover – Fixed Local or Auto Remote
- Optional Features/Accessories:
- P/N 510-0075-002 – N.C. @ 88ºF, – N.O. @ 68ºF
- Non Standard Span – Consult Factory
Hoffman Controls 906-13V(AC) Application:
- The 906-13V(AC) Series thermostats can be used with any
HCC control, EMS control or any other device that accepts a 2-
10V DC input signal.
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