Rayburn Heatranger 480GB Installation Instructions Manual - Commissioning Instructions
32
Before leaving the site, check the operation of
programmer, control thermostats are working correctly
and are capable of controlling the burners correctly.
Check the operation of both burner control boxes. See
‘RECOMMISSIONING’ section in Servicing Instructions.
Check that:-
1. The boiler system is full of water and all the valves are
fully open.
2. The programmer is set to continuous heating and the
heating switch set to heating.
3. Ensure that the electricity supply is ON, that the pump
is running and the boiler thermostat is ON.
4. Allow the pump adjuster to maintain a boiler “flow and
return” temperature differential of 10˚C - 14˚C.
Checks must be made by the installer to see that this
differential is obtained after the boiler ‘Flow’ temperature
is stabilised.
The system should be balanced by regulating the water
flow rate through individual heat emitters to ensure a
satisfactory water temperature at each emitter.
5. When the water system reaches working temperature
check that the boiler thermostat operates satisfactorily.
6. Examine the system for water soundness. The
system should then be turned off and rapidly drained
whilst still hot. The system should again be filled and
cleared of all air locks. Whilst refilling the system it is
recommended that a suitable corrosion inhibitor is added
to the feed water.
1. Advise the User of the precautions necessary to
prevent damage to the heating system and to the building
in the event of the heating season being inoperative
during frost conditions.
2. Advise the User that, for continued efficient and safe
operation of the appliance, it is important that adequate
servicing is carried out at regular 12 monthly intervals.
3. Hand the Operating Instructions to the User and
demonstrate the correct operation of the appliance and
system controls.
4. Leave the Installation and Servicing Instructions with
the User.
ANCILLARY CONTROLS CHECK
INSTRUCT THE USER
BOILER CONTROL CHECK