Figure 2 – Inspection at generator limit thermostat
Thermostat detail
3 SAFETY VALVE REPLACEMENT OPERATIONS
This operation must be performed by professionally qualified staff. Before proceeding,
visually check the integrity of the unit hermetic circuit.
Proceed as indicated below for the replacement operations:
OPERATIONS TO BE CARRIED OUT USING THE ENVISIONED INDIVIDUAL PROTECTION DE-
VICES (I.P.D.)
Material necessary for the intervention (see Figure 3 Safety valve kit → 69):
n. 2 CH22 face spanners•
n. 1 CH8 box spanner•
spare parts kit made up from (see key in Figure 3 Safety valve kit • → 69).
Figure 3 – Safety valve kit
Componenents required for service
LEGEND
n.1 safety valve
n.1 o-ring
n.1 litmus paper
The components subject of the intervention are represented in Figure 4 Detail of safety
valve mounted on unit → 70.
