Commissioning - andrews RSC 9/145 Service Manual

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Commissioning

4.1 Commissioning
Issue 4 21042018
4.1.1 To Light the Burner
Caution
Do not operate the water heater until the storage vessel is
completely filled with water, with water running from all
hot taps.
Open the main gas supply valve after all connections to the gas
control valve are complete, and test all connections with leak
spray.
1. Ensure electrical supply is on.
2. Ensure gas supply is on.
3. Change temperature format from °F to °C by following the
steps in Fig. 20 on page 28.
4. Set the desired temperature by following Fig. 12 to 18 on
pages 26 & 27.
5. Ensure time switch, if fitted is in the on position.
6. If the burner does not light, an error code will be displayed
on control display.
7. Set the main burner pressure Refer to section 5.1.1 and
technical data table on page 8, and complete gas rate
check.
8. Carry out combustion analysis from flue sample point
located on the flue connection spigot. (refer to the
technical data table on page 11 for required Co2 levels.
4.1.2 To Shut off the Burner
To shut off the burner isolate the electrical supply, then shut off
the gas service cock.
The water heater should only be turned OFF for long periods, eg
holidays, or in an emergency. Otherwise the heater should be
left to operate under normal thermostat control.
Note
When using a time control ensure the heater is not turned
OFF before the final water draw off occurs. This will
ensure the water in the tank is left in a hot condition
.
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