Danfoss RA 2000 Einbauanleitung - Seite 2

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Danfoss RA 2000 Einbauanleitung
Installation
Instructions
Prior to Installation:
RA2000 One Pipe Steam (1PS)
Thermostatic Radiator Valve
VISXA222 © Danfoss 04/16
The operator with valve-mounted dial and sensor must be
mounted horizontally.
IMPORTANT
In one-pipe steam systems sufficient pitch is required to permit
condensate return. Condensate should not be trapped in the
valve or vent.
Boiler/Steam supply must be cycled by a reset control and must
not run at constant pressure (which would prevent air from
entering back into the system).
Make sure that free-standing radiators or cast iron convectors are
properly pitched and that hand valves are FULLY open.
To aid in preventing overheating of rooms that are temperature
satisfied, boiler steam pressure must be kept low, recommended
normally at or below 2 psig. Otherwise air will be compressed in
the radiator, allowing steam to enter when not required.