Heating controllers

rosenthal design 
Heating circuit controller Deltatherm<sup>®</sup> HT

Heating circuit controller Deltatherm® HT

The DeltaTherm® HT is a compact and user-friendly solution for simple heating systems and offers weather-compensated control with room infl uence or demand- based room control with 1 room temperature sensor. If a central outdoor sensor unit is used, several controllers can use the outdoor temperature value – this requires the installation of only 1 outdoor temperature sensor. Additionally, there’s a choice of 5 different operating modes and a night correction.

Heating circuit controller for heat interface units
Article no.115 006 03 | Price bracket  A | Price on request
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  • Pre-programmed basic system
  • 4 relay outputs (incl. 1 potential-free extra-low voltage relay)
  • 4 inputs for Pt1000 temperature sensors
  • 5 operating modes, room thermostat and night correction
  • Chimney sweeper function, screed drying function and holiday mode via microbuttons
  • Data logging, storing, easy transfer of controller adjustments prepared and firmware updates via MicroSD card
  • Weather-compensated control with room influence or demand-based room control with 1 room temperature sensor
  • Remote access with a room control unit
  • Function for using a central outdoor sensor unit
Temperature sensor inputs:
Sensor type:
Semiconductor relays:
Potential-free relay:
PWM/0-10 V outputs:
Pre-configured systems:
Mixed heating circuits:
Mixer control weather-compensated:
Mixer control with target temperature:
Operating modes:
Heating circuit antifreeze function:
Heating circuit chimney sweeper function:
Screed drying function:
Room thermostats:
Thermal disinfection:
DHW heating:
Solid fuel boilder:
Heating circuit return preheating:
Return mixing function:
Thermostatic afterheating:
Weather-compensated afterheating:
Night correction:
Boiler protection:
Afterheating suppression:
DHW priority:
Heat exchange:
Parallel relay:
Irradiation switch:
Error relay:
Function block:
Zone loading:
0-10 V boiler control:
Room control:
Remote access with VBus®Touch HC:
Remote display via VBus®Touch FK:
Remote access with RCP12:

Inputs: 4 inputs for Pt1000 temperature sensors (1 of them can be converted to room thermostat (switch)), 1 input for remote control (RTA) or operating mode switch (BAS)
Outputs: 3 semiconductor relays, 1 potential-free extra-low voltage relay, 1 x PWM output, 1 x 0-10 V output
PWM frequency: 512 Hz
PWM voltage: 10,8 V
Switching capacity:
1 (1) A 240 V~ (semiconductor relay)
1 (1) A 30 V= (potential-free relay)
Total switching capacity: 3 A 240 V~
Power supply: 100 … 240 V~ (50 … 60 Hz)
Supply connection: type Y attachment
Standby: 0,63 W
Mode of operation: type 1.B.C.Y action
Rated impulse voltage: 2.5 kV
Data interface: RESOL VBus®, MicroSD card slot
Functions: weather-compensated heating circuit control, room thermostat, chimney sweeper function, screed drying function, holiday mode
Housing: plastic, PC-ABS and PMMA
Mounting: wall mounting, also suitable for mounting into patch panels
Indication/Display: full graphic display, operating control LED (Lightwheel®)
Operation: 4 buttons and 1 Lightwheel®
Ingress protection: IP 20 / DIN EN 60529
Protection class: I
Ambient temperature: 0 … 40 °C
Pollution degree: 2
Dimensions: 110 x 166 x 47 mm
Incl. 3 Pt1000 sensors (2 x FKP23, 1 x FAP13)

Heating circuit controller DeltaTherm® HT – Full kit

Incl. 3 Pt1000 sensors (2 x FKP23, 1 x FAP13)
Article no.: 115 006 13 |  Price bracket A |  Price on request
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Heating circuit controller Deltatherm® HT

RTA12 Remote control

Remote control for connection to the HKM3 and DeltaSol® MX, BX Plus, DeltaTherm® HC/HC MAX or EM Extension Module

Heating circuit controller Deltatherm® HT

FRP12 Indoor temperature sensor

Indoor temperature sensor

Heating circuit controller Deltatherm® HT

RCP12 Room control unit

Room control unit for connection to the DeltaSol® MX (from version 2.0) or DeltaTherm® HC (from version 1.09) and DeltaTherm® HC Max



  Product portfolio (PDF)