AquaMAX G270VE Series - Manual (Page 35)

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5. Take manometer reading with burner operating.
If reading is 1.0 kPa for natural gas models or 2.7 kPa (±5% tolerance)
for propane gas models, the burner gas pressure is correct. Proceed
directly to step 7.
If reading is not 1.0 kPa for natural gas models or 2.7 kPa (±5%
tolerance) for propane gas models, the burner gas pressure will
require adjusting in which case proceed to step 6a for natural gas
models or step 6b for propane gas models.
6. a. Natural Gas Models
i. Remove temperature adjustment dial using a small flat bladed
screwdriver; lever and pull dial away from gas control.
ii. Using a small flat bladed screwdriver, rotate burner pressure
adjustment screw (marked P.R.ADJ.) clockwise to increase or
anticlockwise to decrease burner gas pressure until manometer
reads 1.0 kPa. Proceed to step 7.
b. Propane Gas Models
i. Using a 1.5mm thick flat bladed screw driver, remove the LPG
gas regulator cap by rotating anticlockwise.
ii. Using a No. 2 Phillips head screw driver, rotate adjustment point
clockwise to decrease or anticlockwise to increase the burner gas
pressure until manometer reads 2.7 kPa.
iii. Replace the regulator cap once burner pressure of 2.7 kPa is
achieved. Proceed to step 7
7. Turn off water heater by completely shutting down gas control (refer to
‘Shut Down Procedure’ on page 8).
8. Remove manometer hose from burner gas pressure test point and
replace test point screw.
9. Light the water heater and ensure burner is operating (refer to
‘Lighting Instructions’ on page 6).
10. Test burner gas pressure test point for leaks using a soapy water
solution.
11. Replace black plastic cover surrounding burner gas test point by
pushing back into position. For natural gas models, replace
temperature adjustment dial.
12. Replace front access panel.