PENSOTTI PCH 18 Instruction Manual page 4

6. Maintenance (authorized personnel)
6.1 General warnings
6.2 Boiler inspection
6.3 Accessing the boiler
6.4 Flushing out the primary side
6.5 Draining the central heating system
6.6 Maintenance operations
6.7 Wiring diagrams
6.8 Troubleshooting
6.9 Diagnostics
6.10 Parts list
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