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rosenthal design 
HKM3 Heating circuit extension module|HKM3

HKM3 Heating circuit extension module|HKM3

The HKM3 heating circuit module enables the control of an additional heating circuit. The controller connected can be extended by a complete weather-compensated heating circuit by connecting the HKM3 via the VBus®. The HKM3 is equipped with 6 sensor inputs, one of which can be used for the optional RTA11-M remote control. For the connection of a mixing valve and a heating circuit pump, 3 semiconductor relays are available, as well as one potential-free relay for backup heating demand. In combination with the controller connected, the HKM3 not only controls the basic functions of the heating circuit and the DHW priority, it also has an antifreeze function and a blocking protection for the heating circuit pump.


Heating circuit module for a weather-compensated heating circuit
Article no.145 440 60 | Price bracket  A | Price on request
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  • Weather-compensated control of a heating circuit with timer
  • Up to 3 HKM3 can be connected to a DeltaSol® E controller
  • Mixer control, antifreeze function, DHW priority function
  • Blocking protection of the heating circuit pump
  • Remote control possible (optional)
Inputs: for 5 Pt1000 temperature sensors and 1 RTA11-M remote control
Outputs: 4 semiconductor relays, 1 potential-free relay
Switching capacity:
1 (1) A 240 V~(semiconductor relay)
4 (1) A 240 V~(potential-free relay)
4 (1) A 24 V DC (potential-free relay)
Total switching capacity: 4 A 240 V~
Power supply: 100 ... 240 V~, 50 ... 60 Hz
Standby: 0,41 W
Housing: plastic, PC-ABS and PMMA
Mounting: wall mounting
Indication/Display: LC display, 7-segment display, operating control lamp
Operation: 3 push buttons at the front of the housing and 1 slide switch
Ingress protection: IP 20 / IEC 60529
Ambient temperature: 0 ... 40 °C
Dimensions: 144 x 208 x 43 mm
Bus: RESOL VBus®
Control range: -40 °C ... +250 °C
Heating circuit extension module incl. 2sensors Pt1000 (1 x FAP12, 1 x FKP23)

HKM3 heating circuit extension module - Full kit

Heating circuit extension module incl. 2sensors Pt1000 (1 x FAP12, 1 x FKP23)
Article no.: 145 440 70 |  Price bracket A |  Price on request
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