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Instruction manual BFM 39
is
11. Use the pressure gauge to read the burner pressure at nipple (8). Refer to
the gas data table (3.4.3 "Gas data").
Note
If the burner pressure is incorrect and the appliance is fitted with a blank
plate or high-low control, then you cannot adjust the pressure. In this case,
consult your installation engineer or supplier. If the appliance is indeed fitted
with a burner pressure regulator, then you can adjust the pressure.
BFM 30, 50, 80, 100
12. Remove the cap (2) from the burner pressure regulator.
13. Depending on the correction required, correct the burner pressure by turning
adjustment screw (3):
- Adjustment screw anticlockwise: burner pressure decreases.
- Adjustment screw clockwise: burner pressure increases.
BFM 120
14. Remove the cap (2) from the burner pressure regulator.
15. Depending on the correction required, correct the burner pressure by turning
adjustment screw (3) (PG) using the Allen key supplied with the appliance:
- Adjustment screw anticlockwise: burner pressure decreases.
- Adjustment screw clockwise: burner pressure increases.
Warning
Adjustment screw (Ps) adjusts the starting pressure. This need not, and
must never be adjusted from the factory preset.
16. Check the burner pressure against the value given in the gas
table (3.4.3 "Gas data").
17. If the pressure reading is not correct, repeat the burner pressure adjustment
until the correct pressure is obtained.
18. Shut down the appliance by setting the 0/1 switch to position 0.
19. Shut off the gas supply.
20. Disconnect the two pressure gauges and re-tighten the sealing screws in the
test nipples.
Note
Before starting-up the appliance, take time to fill in the warranty card
supplied with the appliance. This enables us to guarantee the quality of our
systems and further enhance our warranty procedure.
Please return this card as soon as possible. Your customer will then receive a
warranty certificate with our warranty conditions
39


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