Max. number of collector fields:
1 [BS/2, BS/4], 21 [BS Plus]
Max. number of stores:
1 [BS/2, BS/4], 21 [BS Plus]
Weather-compensated heating circuits:
-
External heat exchanger:
-
Speed control of standard pumps:
Speed control of HE pumps:
■ via integrated PWM output:
-
Temperature sensor inputs:
4
Inputs for Grundfos Direct Sensors™:
-
Input for CS10 irradiation sensor:
-
Impulse inputs for V40 flowmeter:
-
Relay outputs in total:
1 [BS/2], 2 [BS/4, BS Plus]
■ semiconductor relays (speed control):
1 (1) [BS/2], 2 (1) [BS/4], 2 (2) [BS Plus]
■ electromechanical relay:
-
■ potential-free relay with changeover contact:
-
■ potential-free relay with normally open contact:
-
■ potential-free high-current relay:
-
■ convertible to 0-10 V:
-
Real-time clock:
ja [BS/4, BS Plus]
Power supply:
100 ... 240 V~
Heat quantity measurement
■ with flowmeter:
ja [BS/2, BS/4] ja 1[BS Plus]
■ with Grundfos Direct Sensors™:
-
Antifreeze function for solar circuit:
Collector minimum limitation:
Collector emergency shutdown:
Store maximum limitation:
Store emergency shutdown:
Tube collector function:
ja [BS/4, BS Plus]
■ with adjustable time frame, interval:
ja [BS/4, BS Plus]
Additional ΔT control:
ja1 [BS Plus]
Thermostat function:
ja1 [BS/4, BS Plus]
Heat dump function:
ja1 [BS/4, BS Plus]
Heat exchange:
ja1 [BS Plus]
Store loading in layers:
ja1 [BS Plus]
Priority loading:
ja1 [BS Plus]
■ Parallel loading:
ja1 [BS Plus]
■ Store sequence control:
ja1 [BS Plus]
■ Progressive loading:
ja1 [BS Plus]
■ Successive loading:
ja1 [BS Plus]
■ Spreaded loading:
ja1 [BS Plus]
Irradiation-dependent bypass:
-
Afterheating suppression:
-
Twin pump for solar circuit:
-
Cooling functions and cooling mode:
■ DVGW legionella protection:
-
■ Thermal disinfection:
ja [BS/4, BS Plus]
DHW heating:
ja [BS/4, BS Plus]
Heating circuit return preheating:
ja1 [BS Plus]
Boiler loading/Zone loading:
-
Solid fuel boiler:
ja1 [BS Plus]
Mixer control weather-compensated:
-
Mixer control with target temperature:
-
Heating circuit antifreeze function:
-
Chimney sweeper function for the heating circuit:
-