Owner’s Manual – Prodigy 5
10
H3109 3109 Rev. J
The operation of the water heater
must be tested by the installer. This
work must only be done by a licensed
tradesperson.
Test for Leaks:
Check the water inlet, water outlet and
gas inlet pipe work and connections for
leaks.
Test the Gas Inlet Pressure:
For correct operation of the water
heater, the gas inlet pressure must be at
least:
Natural Gas
1.13 kPa
Propane
2.75 kPa
To test the gas inlet pressure, follow the
procedure below. If the pressure is less
than the above value, there could be a
problem with the gas meter or supply
pipe size.
1. Ensure the water heater has
been filled with water and the gas
isolation valve is turned off.
2. Remove the lower of the two hex
head screws on the right hand side
of the gas control valve and fit a
manometer to the spigot.
3. Turn on the gas isolation valve and
light the water heater. See Lighting
the Water Heater on page 8.
4. If necessary, adjust the control knob
until the main burner lights.
5. With the main burner alight,
measure the pressure.
6. Turn the thermostat knob to the “•”
(off) position and turn off the gas
isolation valve.
7. Disconnect the manometer and
replace the screw removed at
step 2.
Test the Gas Test Point Pressure:
For correct operation of the water
heater, the gas test point pressure must
be within 5% of the value marked on the
compliance plate.
To test the gas test point pressure,
follow the same procedure used for the
gas inlet pressure except that the M4
button head screw on the right hand
side of the relay valve is to be removed
at step 2. A 2.5mm allen key is supplied
with the water heater for this purpose.
If the pressure is not within 5% of the
marked value, contact Dux After Sales
and Service for advice.
Final Checks:
• Turn on the gas isolation valve and
light the water heater.
• Make sure there are no gas leaks
from either of the two screws
removed during gas pressure testing.
• Set the gas control knob to position
“6” unless hot water is not required.
• Replace the access cover.
• Hand this manual to the occupier of
the premises and explain the lighting
procedure if required.
Testing
