VAILLANT auroMATIC VRS 570 Solar Controller Solar Temperature Differential Controller

1 auroMATIC VRS 570 solar control

2 standard sensors VR 10

1 collector sensor VR 11

1 C1/C2 cable

1 operating and installation manual,

Hydraulic diagrams
C1/C2 On/Off function (control of cylinder charging operation)

Graphical solar yield display

Intuitive operation without prior knowledge

Full-graphic TFT colour display with backlight and plain text display, illuminated

Control of high-efficiency solar and heating pumps

Evaluation of PWM feedback signal (pulse width modulation) for volume flow measurement (solar yield) without volume flow sensor
Differential temperature control (delta-T control) or fixed temperature control (fixed-T control) possibleWeekly program

Time program for heating circuits, cylinder charging circuit and
circulation circuitHoliday programThermal disinfection (daily and weekly time control)Efficient reheating function considering the anticipated solar yield
Legionella protection function for bivalent solar cylinders
Operating modes for cylinder chargingMeasured value display for inputs and outputsOption of free programming of inputs/outputsOperating hours counter