MAINTENANCE
7-6
7.8 SHUTTING THE BOILER DOWN FOR
AN EXTENDED PERIOD OF TIME
If the boiler is to be taken out of service for an
extended period of time (one year or more), the
following instructions must be followed.
1. Set
ON/OFF
switch on the front panel to the
OFF
position to shut down the boiler’s
operating controls.
2. Disconnect AC power from the unit.
3. Close the water supply and return valves to
isolate boiler.
4. Close external gas supply valve.
5. Open relief valve to vent water pressure.
7.9 PLACING THE BOILER BACK IN
SERVICE AFTER A PROLONGED
SHUTDOWN
After a prolonged shutdown (one year or more),
the following procedures must be followed:
Review installation requirements included in
Chapter 2.
Inspect all piping and connections to the unit.
Inspect exhaust vent, air duct (if applicable).
Perform initial startup per Chapter 4.
Perform safety device testing and the scheduled
maintenance procedures per Chapters 6 and 7
of this manual.
Summary of Contents for Benchmark 3.0LN Series
Page 6: ...iv ...
Page 8: ...B ...
Page 42: ...INITIAL START UP 4 8 ...
Page 80: ...A 6 ...
Page 84: ...B 4 ...
Page 86: ...C 2 APPENDIX C ...
Page 93: ...APPENDIX F APPENDIX F F 1 ...
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Page 107: ...APPENDIX G APPENDIX G G 1 ...
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Page 113: ...APPENDIX H APPENDIX H H 1 ...
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