AERCO BMK 3.0 LN Nat. Gas Jan 2011 - Manual (Page 58)

MAINTENANCE
7-6
7.8 SHUTTING THE BOILER DOWN FOR
AN EXTENDED PERIOD OF TIME
If the boiler is to be tak en out of s ervice f or 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 pos ition to s hut d own th e bo iler’s
operating controls.
2. Disconnect AC power from the unit.
3. Close th e water s upply a nd r eturn v alves 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 pr olonged shutdown (one year or more),
the following procedures must be followed:
1. Review installation requirements included in
Chapter 2.
2. Inspect a ll piping an d c onnections to the
unit.
3. Inspect exhaust vent, air duct (if applicable).
4. Perform initial startup per Chapter 4.
5. Perform s afety de vice t esting and the
scheduled m aintenance pr ocedures per
Chapters 6 and 7 of this manual.