A.O. Smith SGS - 100 Installation & Service Manual page 43

is
3.13.3
3.13.4
Instruction manual SGS
9. Use the pressure gauge to read the supply pressure at 1nipple
(1) (3.4.3 "Gas data").
Note
Consult the mains gas supply company if the supply pressure is not correct.
10. Use the pressure gauge to read the burner pressure at nipple
(2) (3.4.3 "Gas data").
If the burner pressure is not correct and the appliance is fitted with a blank plate,
you will not be able to adjust the pressure. Finalise
this case, consult your installation engineer or supplier.
If the appliance is indeed fitted with a burner pressure regulator, the pressure can
be adjusted as described in the procedure
Adjusting the pressure
1. Remove the cap (4) from the burner pressure regulator (3).
2. Correct the burner pressure by turning the adjusting screw (5), depending
on the correction required:
- Adjustment screw anticlockwise: burner pressure decreases.
- Adjustment screw clockwise: burner pressure increases.
3. Cover the opening of the adjusting screw and check the burner pressure
against the value given in the gas table
4. If the pressure is not set correctly, repeat the preceding steps until the
correct pressure is attained.
5. Fit the cap (4) back on the burner pressure regulator.
6. Activate the "OFF mode" of the electronic controller:
MENU
»OFF
^ ON
È WEEK PROGRAM
7. If the MENU is not displayed:
press .
- Use and to place the cursor beside OFF.
- Confirm with
8. Wait until the fan has stopped, and switch the electronic controller off.
Caution
Failure to wait until the fan stops can cause damage to the appliance.
9. Finish off (3.13.4 "Finalising").
Finalising
1. Shut off the gas supply.
2. Disconnect the two pressure gauges and retighten the sealing screws in the
test nipples.
3. Replace the cover.
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 to 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.
(3.13.4
(3.13.3 "Adjusting the
(3.4.3 "Gas data").
.
"Finalising"), and in
pressure").
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