BOILER SHUT DOWN
If you intend to shut your boiler down for a period not to exceed 3 days, you may simply turn off the power,
close the valves and leave the water at the normal operating level without further preparation.
If you intend to shut your boiler down for a period exceeding 3 days – up to 14 days, you should turn off the boiler,
fill the boiler completely with water, close all the valves, and take no further steps of preparation.
NOTE = For Short Term and Long Term situations – if there are other boilers connected in the system, precautions must
be taken to ascertain that no bleed-over is taking place that would pressurize the idled boiler
EXTENDED PERIOD – “SUMMER STORAGE”:
For periods of shutdown beyond 14 days, you must consider either a “wet layup” or a “dry layup”.
To keep boilers free from rust, pitting and corrosion, while they are idle, AGI recommends the boiler be stored “wet”.
Wet storage simply means filling the boiler completely with chemically treated water, closing all the valves, and carefully
monitoring the quality of the water during the layup period.
THE SUCCESS OF ANY WET STORAGE METHOD DEPENDS LARGELY UPON ELIMINATING ALL AIR COMING IN CONTACT
WITH ANY OF THE WATER SIDE WHILE MAINTAINING GOOD BOILER WATER INSIDE.
If a boiler is properly stored, it is a simple matter to put it “back on the line” when the heating season begins. Some boilers,
of course, are in constant use throughout the year, but even these should be periodically drained, cleaned and inspected to
insure continuous operation.
** If you are in an area subject to freezing temperatures, be sure to disconnect and drain all connecting lines.
The following are suggested steps for storing the boiler during shutdown.
Shutdown and Drainage
MUST drain all the water from the boiler, wash and flush as necessary to remove al sludge from water side, and use whatever
method is available to COMPLETELY dry the water side of unit.
AGI Recommends using a CORTEC- BOILER LIZARD for dry storage.
It is designed to maintain proper environment for storage. It is important to seal the water side tightly from outside environment.
Before putting your boiler back into operation, be sure to check with your water treatment supplier to determine whether any
changes in treatment are needed to compensate for changes in make-up water, operating conditions or other factors.
Putting Boiler Back on the Line
Equipment and Tools Needed to Prepare for Inspection and Storage of Boilers