Lochinvar CHA 100 G CE Installation, Commissioning, User & Maintenance Instructions page 31

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3.11.2
3.11.3
Instruction manual CHA
10. Use the pressure gauge to read the supply pressure at test nipple (6). Refer
to the gas data table (3.4.3 "Gas
Comment
Consult the mains gas supply company if the supply pressure is not correct.
11. Use the pressure gauge to read the burner pressure at nipple (8). Refer to
the gas data table (3.4.3 "Gas
Comment
If the burner pressure is not correct and the appliance is fitted with a blank
plate or high-low control, you will not be able to adjust the pressure. In this
case, consult your installation engineer or supplier. If the appliance is indeed
fitted with a burner pressure regulator, the pressure can be
adjusted (3.11.2 "Adjusting the
Adjusting the pressure
1. Remove the cap (2) from the burner pressure regulator.
2. 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.
3. Cover the opening of the adjusting screw and check the burner pressure
against the value given in thegas data table
4. If the pressure reading is not correct, repeat the burner pressure adjustment
until the correct pressure is reached.
5. Fit the cap (2) back on the burner pressure regulator.
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.
data").
data").
pressure").
(3.4.3 "Gas data").
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