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Alpha CD24/32 - Commissioning
5.6 FINAL COMMISSIONING
1. Allow the heating system to heat up, then balance the system to achieve the necessary temperature difference across the
heating flow and return pipes at the boiler and check the system volume and pressure. (Refer to Technical Data, sections
2.2 and 2.8).
2. Turn off the boiler.
3. Thoroughly flush out the water pipework (refer to section 3.9) and with no pressure in the boiler heating circuit, empty the cyclone
at it's drain point (see Fig. 13) of any debris. CD24C and CD32C only - Clean the mains water inlet filter (see Fig. 13).
4. Re-pressurise the system as described in section 5.1.
5.7 FINAL ASSEMBLY
1. Raise the control panel and secure in position with the screws provided.
2. If the boiler is to be left in service with the User, set the controls, clock (if fitted, see User's Operating manual) and room
thermostat (if fitted) to the User's requirements.
3. If the boiler is not to be handed over immediately, close the boiler gas service cock and switch off the electrical supply.
4. If there is any possibility of the boiler being left during frost conditions, then the boiler and system should be drained (refer to section
8.2). It is recommended that a label is attached to the boiler drawing attention to the fact that the system has been drained.
5. Complete the details of the installation on the back page of this manual and the Benchmark log book.
5.8 USER INFORMATION
The User must be advised (and demonstrated if necessary) of the following important points:-
1. How to light and turn off the boiler and how to operate the system controls.
2. The importance of annual servicing of the boiler to ensure safe and efficient operation.
3. That any servicing or replacement of parts must only be carried out by CORGI registered personnel.
4. Ensure that the boiler controls and room thermostat (if fitted) are set to the User's requirements.
5. Tell the User about the sealed system pressure.
6. Tell the User that if the electrical supply is on and the boiler has not operated for 24 hours for heating or hot water, the
pump will automatically operate for 5 minutes.
7. Explain to the User that an internal frost thermostat is fitted in the boiler, and that the electrical supply to the boiler must be
left on for the thermostat to operate.
8. Explain to the User that in certain weather conditions the terminal will emit a plume of steam, i.e. water vapour. This is safe
and quite normal.
9. Show the User the position of the pressure relief valve and condensate discharge pipes.
10. Hand the User's instructions and the Benchmark Log Book to the User.
11. Leave these Installation and Servicing instructions with the User for use on future calls.
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