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the hot water side of the boiler. Please see below the recommended flow rates of cold water below for the
differing sized boilers. These flow rates are based on a 30°C rise in temperature of incoming to outgoing water
To Set the Hot water Temperature
7.8.1.
Open a Hot tap and let it run.
7.8.2.
Adjust the hot water temperature on the boiler by using the up and down arrows the boiler.
7.8.3.
With the hot water tap open and running the temperature of the hot water outlet can now be
set on the boiler by using the up and down button. The temperature cannot be adjusted without a hot
tap being open. Remember this setting does not guarantee the output, it only sets the maximum
possible output, the output temperature will rely on the flow rate going into the boiler as above.
8.
Install complete??
Finally check Heating and Hot water is working correctly.
8.1.
HEATING CHECK
8.1.1.
Turn the thermostat to a temperature to 5 degrees above current room temperature and check
that the boiler heating fires. This is confirmed by the Ignition symbol and the Temperature symbol
being solidly lit.
8.1.2.
Let the boiler run for a few minutes and then check that the radiators are starting to heat up.
8.1.3.
After 15 minutes check the temperature difference between the flow and return is between 15
to 20oC. If not adjust pump speed accordingly
8.1.4.
Wait until the thermostat reaches temperature and deactivates the boiler.
8.1.5.
Again set the thermostat another 5 degrees higher and wait for a few minutes to check that the
boiler successfully fires again.
8.1.6.
If it does, the testing is complete. Set the thermostat to normal operating temperature.
8.2.
HOT WATER CHECK
8.2.1.
Open a hot water tap and ensure that the boiler fires.
8.2.2.
Give the boiler a few minutes to reach temperature.
8.2.3.
Check that the tap is outputting water at the correct temperature. If not please refer to section 8
8.2.4.
Close the hot water taps to complete testing
PLUMBERS CHECKLIST
COMPANY NAME………………………………………………………………………………………………………..
PLUMBERS NAME………………………………………………………………………………………………………..
Rated Combi Boiler Output
12kw 14kw
Recommended Flowrate (ltr/min)
6
7
