For the speed control of high-efficiency pumps
1 input for a VFD Grundfos Direct Sensor™
Heat quantity measurement
Commissioning menu
3 basic system layouts to choose from (DeltaSol® CS/4 only)
Function control
Tube collector function, thermal disinfection (DeltaSol® CS/4 only)
Drainback option
The DeltaSol® CS/2 and CS/4 controllers are used for speed control of a HE pump in small standard solar thermal and heating systems. They are equipped with a PWM output as well as with an input for a VFD Grundfos Direct Sensor™ which enables precise heat quantity measurement. The commissioning menu ensures an easy and quick configuration.
Inputs: 4 Pt1000 temperature sensors, 1 VFD Grundfos Direct Sensor™
Outputs: 1 semiconductor relay, 1 PWM output (DeltaSol® CS/2), 2 semiconductor relays, 1 PWM output (DeltaSol® CS/4)
PWM frequency: 512 Hz
PWM voltage: 10.5 V
Switching capacity: 1 (1) A 240 V~ (semiconductor relay)
Total switching capacity:
1 A 240 V~ (DeltaSol® CS/2)
2 A 240 V~ (DeltaSol® CS/4)
Power supply: 100 – 240 V~ (50 – 60 Hz)
Supply connection: type Y attachment
Standby:
0.86 W (DeltaSol® CS/2)
0.86 W (DeltaSol® CS/4)
Temperature controls class: I (DeltaSol® CS/4)
Energy efficiency contribution: 1 % (DeltaSol® CS/4)
Mode of operation: type 1.C.Y action
Rated impulse voltage: 2.5 kV
Data interface: RESOL VBus®
VBus® current supply: 35 mA
Functions: tube collector function and thermostat function (DeltaSol® CS/4 only), function control, operating hours counter, speed control, drainback option and heat quantity measurement
Housing: plastic, PC-ABS and PMMA
Mounting: wall mounting, mounting into patch panels is possible
Indication/Display: System-Monitoring-Display for visualisation of systems, 16-segment and 7-segment display, 8 symbols for indication of system status
Operation: 3 push buttons 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: 172 x 110 x 46 mm
Maximum altitude: 2000 m above MSL
Fuse: T2A
