Maintenance And Service - flamco Prescor S Instrucciones De Instalación Y Funcionamiento

1. General
Prescor S pressure relief valve (A) to protect closed heated and chilled water systems against excessive
pressure.
Application
•
The safety valve has to be used in a closed heating or cooling system (glycol max. 50%).
• Only use the valve in a dry and frost-free location.
• Min./Max. system temperature: -10 °C/+120 °C.
Safety
Check whether the maximum capacity and the opening pressure that are indicated on the valve match the
values of the system.
Beware of steam from the exhaust: Risk of scalding!
2. Installation
The following points are important to ensure correct operation of the valve and the safety of the installation.
•  T heinstallationshouldonlybecarriedoutbyqualifiedpersonnel.Complywithlocallegislationand
guidelines.
• Fit the valve close to the boiler (E).
•
Carry out the installation on a system that is not under pressure.
• Carry out the installation on a system that is not under pressure.
•
 O nlyfitthevalveoncethepipeshavebeenthoroughlyflushedandbroughtunderpressure.
• Fit the valve to the installation using the correct wrench appropriate for the nut (C).
• Do not weld or solder in the vicinity of the valve.
• Pay attention to the arrow that indicates the flow direction.
• Do not place a circuit breaker between the boiler (E) and the valve (A).
• The diameter of the inlet and outlet pipes should not be smaller than the inlet and outlet connections on
the valve.
•  E nsurethereisafreeout-flowopening(circuitbreakerinstallation)withafallanddirectlyconnectedtothe
outlet of the valve (e.g. Flamco tundish (F).
•
 N everfitthevalvewiththeinletoroutletpointingupwards(G-H).
3.

Maintenance and service

• Visually inspect the valve once a year for signs of leakage. Lifting the valve and flushing it through
thoroughly will often resolve any leaks. If no leak is found, it is not necessary to lift the valve.
• During a periodic inspection (e.g. once every four years), the valve should be lifted to check its
functionality. Seal the valve afresh.
• If the leak continues after lifting the valve and flushing it through the valve must be replaced.
• The Prescor S valve is a safety product. We therefore recommend that it is replaced at least every 10
years.
• If the valve regularly blows off during use, consult the installation specialist.least every 10 years.
•
If the valve regularly blows off steam during use, consult the installation specialist.
4. Removal
Releasethepressurefromthesystem.Thereisadangerofscalding!Hotwatercanflowoutofthesystem.
Remove the valve.
Environment
Comply with local legislation when disposing of the valve.
According to the directives for pressure equipment 2014/68/EU.
Seealsowww.flamcogroup.com.
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