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Installation and maintenance instructions ecoTEC 0020029173_01
a
Caution!
All O-rings must be replaced with new ones as
otherwise leaks may occur!
• Screw the brass cover onto the air separator.
• Reassemble the air separator in the reverse order.
• Fill and bleed the boiler (see Chap. 6.2)
8.6
Checking the charge pressure of the external
expansion vessel
• Measure the charge pressure of the expansion vessel
at the testing nozzle of the vessel when the aplliance
is depressurised.
• Fill the gas cushion as required to the prescribed
nominal pressure according to the identification plate.
• If water is discharged at the testing nozzle of the
expansion vessel the vessel must be replaced.
8.7
Checking gas connection pressure
(inlet working pressure)
To check the connection pressure proceed as described
in Chap. 6.3.3.
8.8 Checking
the
CO
2
concentration
To check the CO
2
concentration follow the procedure
described in Chap. 8.1.3.
8.9 Test
operation
Always perform the following checks after completing
any maintenance task:
• Start up the appliance in accordance with the
instructions in the relevant operating manual.
Fig. 8.11 Tightness check
• Check the appliance for gas and water leaks.
• Check the flue system for leaks and for proper
fixation.
• Check over-ignition and that the flame on the burner
is burning evenly.
• Check the function of the heating (see Chap. 6.4.1)
and hot water generation (see Chap. 6.4.2)
• Document the inspection/maintenance tasks carried
out in the form provided in the inspection or
maintenance contract.
Inspection and maintenance 8
