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Type ETO2
Fig. 9
Advanced 2-stage electric heating control (Y/Δ)
1-zone hydronic heating control for controling the supply water temp. with mixing valve
Fig. 11
Hot water
32
Optional
3 way
Main Pump
valve
© 2013 OJ Electronics A/S
Fig. 10
Advanced 2-stage connection (Y/Δ)
BR978A04a
© 2010 OJ Electronics A/S
Supply sensor
ETF-522
Circulation
Pump
Return sensor
ETF-522
Optional
air sensor
Ground sensor
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