6. Pump groups DN25 / DN32
6.7 Thermometer exchange
6.8 Non-return valve
The non-return valves (SB) and / or return fl ow inhibitors (RV) data used in our system are specially marked. They are integrated into
the ball cocks. On the rotary handle with marked with a band: The non-return valve can be opened manually by moving the rotary
handle approximately 45 ° to the „stop position".
Effiziente Energietechnik
The thermometers are only just plugged in and can be easily
exchanged by pulling them out.
It should be noted that a removed thermometer should
replaced by an identical model. Please pay attention to the
colour marking. (Red text = VL; blue text = RL)
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