Rheem Pronto 012 Owner's Manual And Installation Instructions page 23

Inlet Gas Pressure Test Point
To check the inlet gas pressure:
Close any hot taps and ensure the burner is not operating.
1.
Close the gas isolation valve at the gas inlet to the water heater.
2.
Remove the screws holdings the front cover to the jacket.
3.
4. Gently disengage the front panel and pull
downward to remove from the water heater.
5. Locate the inlet gas pressure test point on the
gas valve of the water heater.
Loosen the test point screw so that the test

point orifice is not blocked.
Connect the manometer.

Open the gas isolation valve fully at the gas inlet
6.
to the water heater.
Turn on all other gas burning appliances in the
7.
house which are on the same gas supply.
8. Open a hot tap fully and ensure the burner is
fully ignited.
It may be necessary to open a second tap to
allow the water heater to operate at full capacity
and enable the burners to fully ignite.
Observe the gas pressure reading on the
9.
manometer.
If the manometer reading is between the
minimum and maximum inlet gas pressure
ratings on the rating label, no adjustment is
required.
If the manometer reading is below the minimum inlet gas pressure rating on the rating label, then either
the gas pipe to the water heater is undersized and needs to be rectified or adjustment is required at the
gas meter regulator. Check with the gas supply authority.
If the manometer reading is above the maximum inlet gas pressure rating on the rating label, then
adjustment is required at the gas meter regulator. Check with the gas supply authority.
Close the hot tap.
10.
Turn off the other gas burning appliances in the house.
11.
Close the gas isolation valve at the inlet to the water heater.
12.
13. Remove the manometer and tighten the test point screw.
14. Open the gas isolation valve fully at the gas inlet to the water heater.
15. Open a hot tap again so the burner ignites.
16. Test for gas leaks.
17. Close the hot tap.
Refit the front panel to the water heater.
18.
INLET GAS
PRESSURE
TEST POINT
INLET GAS PRESSURE TEST POINT LOCATION
MECHANICAL INSTANTANEOUS
843 SERIES
23
COMMISSIONING
SK7692 6/15 REV AD