Technical data

18.1 pre-commissioning

checks

a) Ensure system has been thoroughly cleansed and flushed, any strainers have been cleaned and that the

appropriate water treatment has been added to the system to prevent corrosion, scale formation etc.

b) Ensure the system and boiler has been properly and fully flooded and vented of air and the cold fill pressure

at the boiler is at a minimum 0.5 Bar

c) Check that the pumps within the boiler are free to rotate by removing the vent screw in the end of both pump

motors and checking that the impeller shafts rotate freely when turned with an appropriate sized screwdriver.

Replace vent screws.

d) Ensure Gas supply has been purged and them is the availability of working inlet pressure of nominal 20 mbar

(Nat gas) or 37 mbar (LPG).

e) Check that the flue installation has been properly made.

f) Check that a condensate pipe (in plastic - copper tube is not acceptable) has been connected to the boiler

and that the syphon cleaning point cap is in place.

g) Where the appliance is taking air for combustion from the room in which it is installed - ensure an adequate

provision for ventilation has been made.

h) Ensure that there is an adequate heat load available.

i) Ensure that the electrical connections have been made correctly.

j) Ensure that the appliance has been correctly configured with the appropriate installation code for the system,

See tables page 45 onwards.