Features:
- Indoor use only
- CSA Certified to CSA C22.2 #142-M
- CSA Certified to UL #508
Control Description The Difference Setpoint Control 156 is designed to operate an on/off pump to transfer heat from a heat source to a storage tank. The control operates based on a setpoint temperature difference (ΔT). The relay turns on when the ΔT rises above the setpoint and turns off when the ΔT falls below the setpoint less the differential. The Source Minimum and Storage Maximum settings turn off the relay when heat transfer is no longer desirable. Potential applications include using solar collectors or a wood boiler as a heat source.
Literature |
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D 156, A 156, D 001, D 070 |
Control |
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Microprocessor control; This is not a safety (limit) control |
Packaged Weight |
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0.8 lb. (360 g) |
|
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Enclosure C, White PVC plastic |
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Dimensions |
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4-3/4" H x 2-7/8" W x 7/8" D (120 x 74 x 22 mm) |
Approvals |
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CSA certified to CSA 22.2 No 24 and UL 873 |
Ambient Conditions |
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Indoor use only, -20 to 120 F (-30 to 50 C), < 90% RH non-condensing |
Power Supply |
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24 V 10% 50/60 Hz 2 VA |
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24 V (dc) 10% 0.04 A |
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Relay |
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Relay 240 V (ac) 10 A 1/3 hp, pilot duty 240 VA |
Sensors Included |
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NTC thermistor, 10 kΩ @ 77 F (25 C 0.2 C) =3892 Two of Universal Sensor 071 |
Need Assistance?
If you have questions, need help, or simply feel uncomfortable placing your order online, feel free to contact the product representative at 1-800-786-0329 or send a Support Ticket.
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