CONTENTS
6. Maintenance
(authorized personnel)
Pages
6.1 General warnings
48
6.2 Maintenance
48
6.3 Water heater inspection
49
6.4 Accessing the water heater
50
6.5 Flushing out the primary side
50
6.6 Draining the central heating and domestic hot water system
51
6.7 Maintenance operations
53
6.8 Wiring diagrams
60
6.9 D.H.W Sensor Connection
61
6.10 Troubleshooting
63
6.11 Diagnostics
64
6.12 Parts list
65
6.13 Sequence of operations
66
Summary of Contents for PCI 18
Page 8: ...GENERAL INFORMATION 5 ...
Page 9: ...GENERALInformation 6 ING ...
Page 10: ...GENERALInformation 7 ...
Page 11: ...GENERALInformation 8 ...
Page 25: ...INSTALLATION INSTRUCTIONS 22 3 6 Piping Diagram ...
Page 33: ...INSTALLATION INSTRUCTIONS 29 Venting Pictures Illustrations ...
Page 63: ...INSTALLATION INSTRUCTIONS 59 6 8 Wiring diagrams ...