Dux 135ZB4N Manuale d'uso - Pagina 12
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Owner's Manual – Prodigy 4
Testing
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
Propane
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 that the water heater has
been filled with water and that 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.
10
6. Turn the thermostat knob to the "•"
7. Disconnect the manometer and
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
1.13 kPa
gas inlet pressure except that the upper
2.75 kPa
of the two hex head screws is to be
removed at step 2.
If the pressure is not within 5% of the
marked value, contact Dux After Sales
and Service for advice.
Final Checks:
•
•
•
•
•
(off) position and turn off the gas
isolation valve.
replace the hex head screw
removed at step 2.
Turn on the gas isolation valve and
light the water heater.
Make sure that there are no gas
leaks from either of the two hex
head screws.
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.
H3071
3071
Rev. K