Duplex solar control unit

Duplex solar control unit for small to mid-sized solar and heating systems, fitted with outputs and inputs for heat quantity meters (volume measuring instrument or VFS sensor required), web-connected (module required), actuation of high-efficiency pumps and MicroSD card slot and LAN and mini-USB connection. 27 pre-configured systems available. Numerous functions such as drainback, booster, timer, bypass, external WT, twin pump, thermal disinfection, zone charging and blocking protection can be connected, freely-programmable function blocks. 2 additional micro buttons for fast access to manual mode and holiday function. Integrated multi-coloured control LED for differentiated message-display of various system conditions. Automatic function check as per VDI guideline 2169.

Overview:

4 relay outputs (incl. 1 floating low-voltage relay)
4 inputs for temperature sensors Pt1000, Pt500 or KTY
1 input for analogue Grundfos Direct Sensor™
1 pulse input for V40 (can be switched to temperature sensor input Pt1000, Pt500 or KTY)
2 PWM outputs for speed-controlled actuation of high-efficiency pumps
Can be connected to the web (module required)
MicroSD card slot, LAN and mini-USB connections
27 pre-configured basic systems selectable
Automatic function check as per VDI 2169

Further informations:

Complete package incl. 2 collector sensors and 2 tank sensors
Combinable with flow rate counter and flow sensor for heat metering
Comprehensive range of accessories available