Tekmar Difference Setpoint Control 156 Data Brochure

- Data Brochure
Difference Setpoint Control 156
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.
Additional functions include:
• 24 V (ac) OR 24 V (dc) power supply
• Monitor Minimum & Maximum temperatures for Source & Storage
• Displays number of running hours of the relay
• Displays ΔT• hours to perform energy calculation
• CSA and UL certified for use in the USA and Canada
• NEW Solar Sensor 085 immersion type sensor included!
24 V (ac or dc)
Power Supply
Meets Class B:
Canadian ICES
FCC Part 15
Made in Canada
tektra 906-12
ΔT
Source
Storage
Item
Difference Setpoint
Control 156
1 2 3 4
Power Relay
C R
Input
Output
Primary
Pump
Power: 24 V (ac) ±10% 50/60 Hz 3 VA
24 V (dc) ±10% 0.03 A
Relay: 240 V (ac) 10 A 1/3 hp
Minimum
Maximum
Diff'l ΔT • hours
On / Off
No Power
5 6
Signal wiring must be
Com Src Stor
rated at least 300V
Input
Solar Sensor
Included
1 of 12
7
Input
Universal Sensor
Included
© 2010
D 156
06/10
D 156 - 06/10