Solar & system controllers

DeltaSol<sup>®</sup> CS Solar controller

DeltaSol^® CS Solar controller

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.

DeltaSol^® CS/2 incl. PWM adapter cable

Article no.: 115 004 73 | Price bracket A | Price on request

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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
Unit °C and °F selectable
Heat pump demand (optional (DeltaSol^® CS/4 only))

Max. number of collector fields:

Max. number of stores:

Weather-compensated heating circuits:

External heat exchanger:

Speed control of standard pumps:

Speed control of HE pumps:

■ via integrated PWM output:

■ via PSW adapter:

Hardware

Temperature sensor inputs:

Sensor type:

Pt1000

Inputs for Grundfos Direct Sensors™:

digital

Input for CS10 irradiation sensor:

Impulse inputs for V40 flowmeter:

Relay outputs in total:

1 [CS/2], 2 [CS/4]

■ semiconductor relays (speed control):

1 (1) [CS/2]
2 (1) [CS/4]

■ electromechanical relay:

■ potential-free relay with changeover contact:

■ potential-free relay with normally open contact:

■ potential-free high-current relay:

PWM outputs:

■ convertible to 0-10 V:

Real-time clock:

[CS/4]

Data interface:

VBus^®

Energy-efficient SMPS:

Power supply:

100 ... 240 V~

Heat quantity measurement

■ with flowmeter:

■ with V40 flowmeter:

■ with Grundfos Direct Sensors™:

VFD

Software functions

Antifreeze function for solar circuit:

Collector minimum limitation:

Collector emergency shutdown:

Store maximum limitation:

Store set temperature:

Store emergency shutdown:

Drainback option:

Tube collector function:

[CS/4]

■ with adjustable time frame, interval:

[CS/4]

Additional ΔT control:

Thermostat function:

¹ [CS/4]

Target temperature:

Heat dump function:

¹ [CS/4]

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:

¹ [CS/4]

■ DVGW legionella protection:

■ Thermal disinfection:

[CS/4]

DHW heating:

[CS/4]

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:

¹ system-dependent

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