156
Part of the 156 Series
Ordering Code: 156
UPC: 779655015601
Difference Setpoint Control, On - Off
The Difference Setpoint Control 156 is designed to transfer heat from an intermittent heat source to a storage tank. This control can be used in applications ranging from solar thermal to wood boiler systems. Two sensors are used to measure the temperature at the source and at the storage location, and begin heat transfer when there is a positive difference between them. This product uses a single 240 V (ac) rated relay to accomplish this.
Features
- Displays number of running hours of the relay
- CSA and UL certified for use in the USA and Canada
- 24 V (ac) or 24 V (dc) power supply
- Displays Delta-T hours to perform energy calculation
- Monitor minimum and maximum temperatures for source and storage
| 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 |
| BACnet or Modbus Communication | No |
| Control Type | Microprocessor control, this is not a safety (limit) control |
| DHW Control | Does Not Apply To Product |
| Dimensions | 4-3/4" H x 2-7/8" W x 7/8" D (120 x 74 x 22 mm) |
| Enclosure Material | White PVC plastic |
| Enclosure NEMA Rating | NEMA 1 |
| Heat Source Stages | Does Not Apply To Product |
| Hydronic - HVAC Control Type | Difference Setpoint Control |
| Mixing | Yes |
| Onboard Zones | Does Not Apply To Product |
| 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 |
| tekmarNet Communication | No |
| Water Temperatures | 1 |
| Zone Operation | Does Not Apply To Product |
Literature
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Literature