Solar and system controllers Solar and system controllers

Solar controller DeltaSol® AL E HE

Manuals available:
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  • Direct connection of an electric immersion heater up to 3 kW (230 V~)
  • DHW heating with rapid heat-up and thermal disinfection
  • Time and temperature control of the electric backup heating
  • Solar backup heating suppression
  • Heat quantity measurement via VFD Grundfos Direct Sensor™
  • PWM output for the speed control of a high-efficiency pump
  • Quick access to the holiday and the manual modes
  • Status display for a bidirectional HE pump
  • Drainback option and tube collector function
  • Commissioning menu

Solar controller DeltaSol® AL E HE
Solar controller for standard solar thermal systems
Article-no: 115 325 93 | Price bracket

DeltaSol® AL E HE – Full kit
Solar controller for standard solar thermal systems incl. 3 Pt1000 sensors (1 x FKP6, 2 x FRP6)
Article-no: 115 326 03 | Price bracket

The DeltaSol® AL E HE controller is especially designed for standard solar systems with a high-efficiency pump and an electric backup heating. It is equipped with a PWM output and two high-current relays to which an electric immersion heater of up to 3 kW (230 V~) can be connected. The heater can be directly connected to the controller without the need of auxiliary relays. For data communication, the controller has a RESOL VBus®.

Max. number of collector fields:
Max. number of stores:
Weather-compensated heating circuits:
External heat exchanger:
Speed control of standard pumps:
Speed control of HE pumps:
■ via integrated PWM output:
■ via PSW adapter:

Temperature sensor inputs:
Sensor type:
Pt1000 or KTY
Inputs for Grundfos Direct Sensors™:
Input for CS10 irradiation sensor:
Impulse inputs for V40 flowmeter:
Relay outputs in total:
■ semiconductor relays (speed control):
■ electromechanical relay:
■ potential-free relay with changeover contact:
■ potential-free relay with normally open contact:
■ potential-free high-current relay:
PWM outputs:
■ convertible to 0-10 V:
Real-time clock:
Data interface:
Energy-efficient SMPS:
Power supply:

Heat quantity measurement
■ with flowmeter:
■ with V40 flowmeter:
■ with Grundfos Direct Sensors™:

Software functions
Antifreeze function for solar circuit:
Collector minimum limitation:
Collector emergency shutdown:
Store maximum limitation:
Store set temperature:
Store emergency shutdown:
Drainback option:
Tube collector function:
■ with adjustable time frame, interval:
Additional ΔT control:
Thermostat function:
Target temperature:
Heat dump function:
Heat exchange:
Store loading in layers:
Priority loading:
■ Parallel loading:
■ Store sequence control:
■ Progressive loading:
■ Successive loading:
■ Spreaded loading:
Solar circuit bypass:
Irradiation-dependent bypass:
Irradiation switch:
Afterheating suppression:
Parallel relay:
Twin pump for solar circuit:
Cooling functions and cooling mode:
Flow rate monitoring:
Pressure monitoring:
Function control:
Error relay:
DHW hygiene functions:
■ DVGW legionella protection:
■ Thermal disinfection:
DHW heating:
Heating circuit return preheating:
Boiler loading/Zone loading:
Solid fuel boiler:
Mixer control weather-compensated:
Mixer control with target temperature:
Function block:
Heating circuit antifreeze function:
Chimney sweeper function for the heating circuit:
Room thermostats:
Inputs: for 4 Pt1000 temperature sensors, thereof 1 x RCTT, 1 x Grundfos Direct Sensor™ VFD, 1 x PWM feedback
Outputs: 1 semiconductor relay, 2 high-current relays for electric immersion heater, 1 PWM output
PWM frequency: 512 Hz
PWM voltage: 10 V
Switching capacity:
1 (1) A 240 V~ (semiconductor relay)
14 (3) A 240 V~ / 24 V⎓ (high-current relay, potential-free)
Power supply: 100 ... 240 V~ (50 ... 60 Hz)
Supply connection: type Y attachment
Standby: 0.67 W
Temperature controls class: I
Energy efficiency contribution: 1 %
Mode of operation: type 1.B.Y action
Rated impulse voltage: 2.5 kV
Data interface: RESOL VBus®
VBus® current supply: 35 mA
Functions: function control, operating hours counter, tube collector function, heat quantity measurement, time-controlled thermostat function, DHW heating with rapid heat-up, thermal disinfection, holiday mode and backup heating suppression
Housing: plastic, PC-ABS and PMMA
Installation: wall mounting, mounting into patch panels is possible
Indication/Display: System-Monitoring-Display for visualisation, 16-segment display, 7-segment display, 8 symbols for system states, background illumination and operating control LED
Operation: 3 push buttons and 1 slide switch at the front of the housing
Ingress protection: IP 20 / DIN EN 60529
Protection class: I
Ambient temperature: 0 ... 40 °C
Pollution degree: 2
Dimensions: 144 x 208 x 43 mm

Remote control
Article-no: 136 000 60 | A

Product photos

DeltaSol® AL E (2845 kB)

Please note that RESOL – Elektronische Regelungen GmbH owns the sole copyright on objects, documents, graphics, pictures, audio and video documents, texts, etc. published and created by RESOL – Elektronische Regelungen GmbH. Copying, distribution to third parties, changing the contents or using these contents in electronic or printed publications is not permitted without the explicit approval of RESOL.

The controller can be branded with your own logo. Please contact our sales team.
The cTUVus certification confirms that the controller is certified to UL 60730-1A and CSA E60730.1.
The cLCus certification confirms that the controller meets the demands of the UL 60730-2-9 and CSA - E60730-2-9-01 standards.
The cLCus certification confirms that the controller meets the demands of the UL 60730-1A and CSA E60730.1 standards.