IOM – FLEXY II – 1007 – E Page 52
PRESSURE ADJUSTMENTS ON HONEYWELL
PRESSURE REGULATING VALVE TYPE VR 4605P
Pressure regulator adjustment with 300mbar gas
supply:
- The Burner must run in High Heat mode for this check.
- Place the tube of the “accurate” manometer on the Inlet
pressure port (F i g u r e 1 9 ) of the Gas Regulating Valve after
having loosened the screw by one turn
Check and adjust if necessary the valve Inlet pressure to
20.0mbar (G20) or 25.0mbar f or Groningen (G25) or
37.0mbar for propane (G31) after gas burner ignition
(f i g. 2 0 )
High Heat Injection Pressure Checks
Check and adjust if necessary the valve OUTLET pressure
to 8.0mbar (G 20) / 10.4mbar f or Groningen (G25) & 28.3
mbar f or propane (G31) (f ig. 21)
The out pressure m ust be m eas ured on the press ure tap
located on the gas injector support bar to avoid the
pressure drop due to the elbow after the v alve
Fig. 19
Fig. 21
Fig.20
measuring port
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