Pag. 68 di 71
7 PERIODICAL CHECKING
Plate heat exchanger
When : Every year
How : To measure DT according to data inside the training module.
By pass & Safety valve
When : Every year
How : Visual aspect / Cleanness
Primary filter
When : Every year
How : Visual aspect / Cleanness
Expansion vessel
When : Every year
How : Pressure air at 1 b
Flowswitch function
When : Every year
How : Flow rate / Visual aspect / Cleanness
Ignition & ionisation probes
When : Every year
How : Visual aspect / Cleanness / Distance with the burner / Ionisation
current more than 1 µA
Burner + Manifold
When : Every year
How : Visual aspect / Cleanness / Flame aspect
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