RESOL is a German brand and a global leader in innovative control technology for solar thermal and heating systems. With over 40 years of experience, we specialize in designing and manufacturing advanced controllers, data loggers, and accessories to maximize energy efficiency and system performance. Renowned for our precision engineering and sustainable approach, RESOL empowers homes and businesses with intelligent solutions for renewable energy management. Trust RESOL for cutting-edge technology that drives the transition to a greener future.
4 relay outputs and 5 Pt1000 temperature sensor inputs
2 inputs for analogue Grundfos Direct Sensors™
2 PWM outputs for the speed control of high-efficiency pumps
26 basic systems to choose from
Drainback option
Thermal disinfection function, heat dump function
Selection between SI and imperial units
Heat pump demand (optional)
Suitable for water-glycol mixtures
Impeller meter with magnetic clutch
Low pressure loss
High-quality and wearresistant materials
Compact size
Modern design
Insulated actuator housing
Simple manual control for commissioning or emergency operation
Universal electrical connection by integrated relay (240VAC).
Control via an on-off contact.
Limit switch signal output can be used for control purposes (max. 1 A)
Position of the ball valve is visible via an indicator flag (white)
The actuator can be replaced quickly without demounting of the valve
No flow restriction
Battery-operated mini digital thermometer
with connected measuring sensor for universal application
Reliable failure signal by LED
Connection to a building management system (BMS) possible
Supply and control via RESOL VBus®
Module
Internet access to the system via VBus.net
Connection to a building management system via BACnet/IP or Modbus/TCP
Comfortable system parameterisation via the RESOL RPT Parameterisation Tool
2 controllers can be connected
Internal memory for data logging
Automatic firmware updates via Internet
Suitable for all RESOL controllers with VBus®
WLAN functionality
Type: Pt1000, model FRP22
Working range: -20…+90 ºC
Sensor end: ∅ 6 x 45 mm
Cable: 2.5 m / PVC insulation
Including: mounting material
















