AERCO BMK 3.0 LN Nat. Gas APRIL 2009 - Manual (Page 55)

MAINTENANCE
7-5
7.9 PLACING THE BOILER BACK IN
SERVICE AFTER A PROLONGED
SHUTDOWN
UNIT
FRAME
EXHAUST
MANIFOLD
CONDENSATE
TRAP
DRAIN
HOSE
CLAMP
1" I.D.
HOSE
TO FLOOR
DRAIN
BOLTS
(4)
FLUE
After a prolonged shutdown (one year or more),
the following procedures must be followed:
1. Review installation requirements included in
Chapter 2.
2. Inspect all piping and connections to the
unit.
3. Inspect exhaust vent, air duct (if applicable).
4. Perform initial startup per Chapter 4.
5. Perform safety device testing and the
scheduled maintenance procedures per
Chapters 6 and 7 of this manual.
Figure 7-5
Exhaust Manifold Condensate Trap &
Drain
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.