RS4 solar controller

Advantages :

• Specially designed for speed control of high-efficiency pumps
• 1 input for Grundfos Direct SensorTM VFD
• System-Monitoring display
• 4 PT1000 temperature sensors
• Solid-state relays for speed control
• HE pump control
• Heat balance
• Commissioning menu
• choice of 3 basic systems
• Function monitoring
• Optional thermal disinfection function
• Drainback option
• Choice of temperature display in °C or °F

Technical data :

• Inputs: 4 PT1000 temperature sensors, 1 Grundfos Direct SensorTM VFD sensor
• Outputs: 2 semiconductor relays, 1 PWM output
• PWM frequency: 512Hz
• PWM voltage: 10.5V
• Breaking capacity: 1(1)A, 240V (semiconductor relay)
• Total breaking capacity: 2A, 240V
• Power supply: 100-240V (50-60Hz)
• Connection type: X
• Stand-by: 0.59W
• Temperature controller class: I
• Contribution to energy efficiency: 1%
• Operation: type 1.C.Y
• Impulse voltage: 2.5kV
• Data interface : VBus®
• VBus® current output: 35mA
• Functions: operating control, operating hours counter, tube sensor function, thermostat function, speed control, drainback and booster option and heat quantity measurement
• Housing: plastic, PC-ABS and PMMA
• Mounting: wall-mounted or in control panel
• Display / Screen: System-Monitoring screen for complete system overview, 16-segment display, 7-segment display, 8 symbols for system status control
• Operation: 3 keys
• Type of protection: IP 20 / IEC 60529
• Protection class: I
• Ambient temperature: 0...40 °C
• Pollution degree: 2
• Dimensions: 172x111x49mm