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• Fully pumped central heating systems using
mid position valves, spring return valves or
“power open”, power closed valves.
• Gravity hot water, pumped heating systems
with or without motorised valves fi tted into the
domestic hot water primary circuit.
Important note:
For fully pumped systems the switch located at
the rear of the “QE2” must be moved to the right
- into the “fully pumped” position.
Application QE2
0662_QE1_QE2.indd 27
29.03.2017 13:44:17
