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General Instructions
1. Construction
Shutoff valves on inlet and outlet
Powder coated pressed steel housing
Drinking water and system connection with either R
or 15mm soldered
Electronic time relay finely adjustable between 6 and 60 minutes to limit the filling time
Fault indicator lamp and cut-out button
Pressure gauges for inlet and system pressures
Discharge tundish for connection to a DN 40 plastics pipe
Electrical plug for pump/vessel unit connection (not volt free)
ON/OFF double pole switch, illuminated
Electrical connection 230V~/50/60 Hz
One metre connection cable without plug
Water meter: Indicates in m
3
/h
Bush for cable connection to a building management system
Operating-time indicator
1
/
" DN2999 shutoff ball valves
2
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2. Purposes
Installation Example
Maintaining pressure between prescribed upper and lower limits in closed heating and
cooling systems
Prevention of back flow, back syphonage or back pressure of the heating or cooling
water into the potable water network.
Limitation of the refilling time
Facility for fast and automatic refilling of the system
Prevention of build up of steam in the system caused by loss of pressure
General Instructions
15
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