Solar and system controllers Solar and system controllers

Solar controller DeltaSol® A/AX/AX HE

Manuals available:
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  • Adjustable temperature difference 2 ... 16 K, hysteresis 1.6 K
  • Antifreeze function adjustable by jumper/micro-switch
  • Maximum or minimum temperature limitations adjustable by micro-switch (DeltaSol® AX)
  • Protection against dripping water
Also available as extra-low voltage or 230 V~ versions!
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Solar controller DeltaSol® A/AX
Differential temperature controller for solar, heating and air conditioning systems
Article-no: 115 211 27 | Price bracket A

Solar controller DeltaSol® A - Full kit
Differential temperature controller for solar, heating and air conditioning systems incl. 2 sensors Pt1000 (1 x FKP6, 1 x FRP6)
Article-no: 115 211 37 | Price bracket A

Solar controller DeltaSol® AX
Differential temperature controller for solar, heating and air conditioning systems
Article-no: 115 211 77 | Price bracket A

Solar controller DeltaSol® AX - Full kit
Differential temperature controller for solar, heating and air conditioning systems incl. 2 sensors Pt1000 (1 x FKP6, 1 x FRP6)
Article-no: 115 211 87 | Price bracket A



The DeltaSol® A and DeltaSol® AX controllers are the simplest solution for all differential controls. The version DeltaSol® A is equipped with an adjustable temperature difference and a antifreeze function which can be activated / deactivated by jumpers. The version DeltaSol® AX presents an extended version which is additionally equipped with an adjustable target temperature for minimum or maximum temperature limitation (adjustable by micro-switch). The enclosed silicone sealing cord guarantees a protection against dripping water.

Max. number of collector fields:
1
Max. number of stores:
1
Weather-compensated heating circuits:
-
External heat exchanger:
-
Speed control of standard pumps:
-
Speed control of HE pumps:
[AX HE]
■ via integrated PWM output:
[AX HE]
■ via PSW adapter:
-

Hardware
Temperature sensor inputs:
2
Sensor type:
Pt1000
Inputs for Grundfos Direct Sensors™:
-
Input for CS10 irradiation sensor:
-
Impulse inputs for V40 flowmeter:
-
Relay outputs in total:
1
■ semiconductor relays (speed control):
-
■ electromechanical relay:
1
■ potential-free relay with changeover contact:
-
■ potential-free relay with normally open contact:
-
■ potential-free high-current relay:
-
PWM outputs:
1 [AX HE]
■ convertible to 0-10 V:
-
Real-time clock:
-
Data interface:
-
Energy-efficient SMPS:
-
Power supply:
220 ... 240 V~ / 115 V~
100 ... 240 V~ [AX HE]

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

Software functions
Antifreeze function for solar circuit:
Collector minimum limitation:
1 [AX/AX HE]
Collector emergency shutdown:
-
Store maximum limitation:
1 [AX/AX HE]
Store set temperature:
-
Store emergency shutdown:
[AX HE]
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:
-
Circulation:
-
Function block:
-
Heating circuit antifreeze function:
-
Chimney sweeper function for the heating circuit:
-
Room thermostats:
Inputs: 2 temperature sensors Pt1000
Outputs: 1 electromechanical relay (changeover)
PWM frequency: 1 kHz
PWM voltage: 11,0 V
Switching capacity: 4 (1) A 115 V~ (electromechanical relay)
Total switching capacity: 4 A 115 V~
Power supply: 115 V~ (50 ... 60 Hz)
Supply connection: type Y attachment
Standby: 0,39 W
Mode of operation: type 1.B action
Rated impulse voltage: 2,5 kV
Functions: antifreeze function, DeltaSol® AX additionally with maximum or minimum temperature limitation
Housing: plastic, PC-ABS and PMMA
Installation: wall mounting
Indication/Display: 1 control lamp
Operation: via potentiometer
Ingress protection: IP 20 / EN 60529 (with IP 22 seal)
Protection class: II
Ambient temperature: 0 ... 40 °C / 32 ... 104 °F
Pollution degree: 2
Dimensions: Ø 139 mm, depth 45 mm / Ø 5,47", depth 1,77"
Switch-on difference: DT 2 ... 16 K adjustable
Hysteresis: 1,6 K below switch-on value
Control range: -20 ... +150 °C
Special functions: frost protection, DeltaSol® AX additionally with maximum or minimum temperature limitation
  1 system-dependent

Product photos

DeltaSol® A AX (14267 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.

Customized and OEM versions are available on request. Please contact our sales team. Also available as 12 V~, 12 V , 24 V and 230 V~ versions!
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.