Robur GAHP-W, Инструкция по установке, эксплуатации и обслуживанию, Страница: 28 / 68

GAHP-W – Installation, start-up, use and maintenance manual
26
Edition: 2014-08
MANIFOLD GAS PRESSURE ADJUSTMENT PROCEDURE
1. Ensure that all air is properly bled from the gas line before starting the ignition
sequence. Start-up without properly bleeding air from the gas line may require
multiple reset functions of the ignition control module to achieve proper ignition.
2. Turn the gas valve knob to the “OFF” position.
3. Remove the hex plug located on the outlet side of the gas valve and install a fitting
suitable to connect to a manometer.
4. Turn the gas valve knob to the “ON” position.
5. Switch the unit “ON” and call for heat.
6. The gas valve will open at the end of the trial for ignition stage and remain open as
the burner fires. If air has not been completely bled, ignition process may fail
requiring a manual reset (See 4.4 on page 51).
7. When the burner ignites, read the manometer and compare the number to the
required pressure in Table 13 or Table 14.
8. If necessary, remove the seal screw and turn the regulator adjustement screw
clockwise to raise the pressure, counterclockwise to lower the pressure.
9. Replace the seal screw when the correct pressure has been set.
10. Switch the unit OFF.
11. Turn the gas valve knob to the “OFF” position.
12. Remove the manometer and replace the hex plug in the gas valve.
13. Turn the gas valve knob to the “ON” position.
14. Switch the unit “ON” and check for leaks at all gas connections with soap.
Figure 10 - Gas valve
INLET
PRESSURE
TAP
PRESSURE
REGULATION
SCREW
REMOVE CAP SCREW FOR
PRESSURE ADJUSTMENT
OUTLET
PRESSURE
TAP
INLET OUTLET
OFF
ON
GAS CONTROL
KNOB
C
A
B