Lennox BAC020SNM, Инструкция по установке, эксплуатации и обслуживанию

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HEATING: MODULATING GAS BURNER
BALTIC R410A-IOM-0708-E Page 89
PRESSURE ADJUSTMENTS ON HONEYWELL
PRESSURE REGULATING VALVE TYPE VK 4105 G
Pressure regulator adjustment with 300mbar gas
supply:

The Burner must run in High Heat mode for this check.

Place the tube of t
he “accurate” manometer on the
Inlet
pressure port (Figure 80) 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 for G25 )after gas burner
ignition (fig.81)
High Heat Injection Pressure Checks

Place the tube of the “accurate” Manometer to the
OUT
port on the Gas injector support bar after having
loosened the screw by one turn.
Check and adjust if necessary the valve
OUTLET pressure
to 8.4 mbar (G 20) (or 12.3mbar for G25) (fig.83)
Fig. 80
Fig. 82
Fig.81
INLET
PRESSURE
LOW HEAT
ADJUSTMENT
HIGH HEAT
ADJUSTMENT
UNDERNEATH
Fig. 79
Fig. 83