155

Discontinued - Replaced By: 156

Part of the Setpoint Controls Series

Ordering Code: 155

UPC: 779655015508

Difference Setpoint Control

 

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  • 24 V (ac) or 24 V (dc) power supply
  • Monitor minimum and maximum temperatures for source and storage
  • Displays Delta-T hours to perform energy calculation
  • CSA and UL certified for use in the USA and Canada
Specifications
Agency Approvals CSA C US, meets class B: ICES & FCC Part 15
Ambient Conditions Indoor use only, -20 to 120 degrees F (-30 to 50 degrees C), RH less than or equal to 90 percent Non-condensing
Control Type Microprocessor control, this is not a safety (limit) control
Dimensions 4 3/4 IN H x 2 7/8 IN W x 7/8 IN D (120 x 74 x 22 MM)
Enclosure Material White PVC plastic
Enclosure NEMA Rating NEMA 1
Hydronic - HVAC Control Type Difference Setpoint Control
Power Supply 24 V (ac) plus / minus 10 percent, 50/60 Hz, 3 VA, 24 V (dc) plus / minus 10 percent, 0.03 A
Relay 240 V (ac) 10 A max, 1/3 hp
Sensor NTC thermistor, 10 k ohms at 77 degrees F (25 degrees C plus / minus 0.2 degrees C) Beta=3892