The DeltaSol® A, DeltaSol® AX and DeltaSol® AX HE controllers are the simplest solution for all differential controls. The version DeltaSol® A is equipped with an adjustable temperature difference and an antifreeze function. The version DeltaSol® AX presents an extended version which is additionally equipped with an adjustable target temperature for minimum or maximum temperature limitation. Equipped with an electromechanical relay and a PWM output, the DeltaSol® AX HE controller manages the speed control of a high-efficiency pump. The enclosed silicone sealing cord guarantees a protection against dripping water.
Differential temperature controller for solar, heating and air conditioning systems
Adjustable temperature difference 2 ... 16 K, hysteresis 1.6 K
Antifreeze function adjustable by jumper/DIP switch
Maximum or minimum temperature limitations adjustable by DIP switch (DeltaSol® AX/AX HE)
Protection against dripping water
Speed control of a high-efficiency pump with adjustable minimum speed (DeltaSol® AX HE)
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:ja [AX HE]
■ via integrated PWM output:ja [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:-