rements according to VDI 2035.
32
4 214 283 / 00
COMMISSIONING
5.2 Filling the heating system
Filling and topping up water must satisfy the quality requi-
rements according to VDI 2035.
5.3 Filling the calorifier
(where installed)
5.4 Commissioning
It is essential that the following points are comple-
ted by the Heating Engineer before commissioning
is requested through Hoval.
• System full of water and vented
•
•
• Heating load available e.g. pumps working
• Fuel purged to burner isolation valve
• Oil bled to boiler isolation cock
• Electrical connections made and correctly fused
• Correct boilerhouse ventilation
• Other manufacturer’s equipment has been ins-
talled and commissioned as necessary, e.g. press--
urisation units.
If the above are not completed and commissioning
is unable to commence, clients will be charged for
the aborted visit.
Hoval Service Engineers normally commission all
new boilers and they will check the following:
•
including circulation pumps.
•
• an independently pressurised system is operating cor-
rectly. Suppliers of the equipment should adjust their
equipment during commissioning.
•
open if manually operated and if electrically operated
that the burner is interlocked electrically to prevent ope-
ration until the damper is open.
• the electrical installation with the appropriate wiring
diagram for the boiler and burner and for correct fan
rotation.
•
•
•
• the burner has not been damaged in transit or during
installation and that it is a suitable type for the fuel
available on site. The nameplate on the burner indica-
tes for which type of fuel it is designed.
• excessive space in the refractory opening around the
burner has been sealed with the supplied ceramic ma-
terial.
• all items, packed in transit, are removed from combus-
tion chamber.
• boiler control thermostats are adjusted to suit system
• the limit and high/low stats are set in accordance with
control details. See section 4.5.
• the boiler relief valve setting is suitable for the system
(The setting should be at least 0.5 bar above the pres-
sure).
• oil supply pressure and temperature is suitable.
•
• commissioning is in accordance with burner makers re-
quirements.
• controls are proved and stats are adjusted in line with
temperature indicated on the boiler thermometer.
•
refractory to reach a uniform temperature through its
thickness thereby preventing any damage.
• burner is adjusted to give optimum combustion, to-
• the Heating Engineer will have the opportunity to recei-
ve instruction on the correct operation of the plant du-
ring commissioning and to aquaint himself with the fault
pages 40-43. He will also be advised
on how much of the ‘action’ columns can be dealt with
by site staff.
The boiler should not be operated without the calorifier
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