Commissioning - Grant Combi 90 V3 User, Installation & Servicing Instructions

It is important that the following commissioning procedure
is carried out to ensure safe and efficient operation of the
boiler.
Note: Check that the baffles are in position and that the
cleaning cover is correctly fitted and a good seal made.
Check that the Condensing Combi turbulators are in
position and that the ends are vertical, see Fig. 28.
Outdoor Combi 90 V3, Combi Max and Condensing Combi

8 - COMMISSIONING

Fig. 21 - Boiler controls (Outdoor Combi 90 V3 and Combi MAX)
Fig. 22 - Boiler controls (Outdoor Condensing Combi)
1 Check that the water system has been vented and
pressurised, and there are no leaks.
2 Check that all fuel line valves are open.
3 Remove the plastic burner cover (two screws) if it was not
previously removed.
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