30
Part Number 550-142-785/0812
GWI
Series 2
Gas-Fired Water Boilers –
Boiler Manual
❏
Check/test
❏
Review with owner
1. Review the User’s Information Manual with the owner.
2. Emphasize the need to perform the maintenance schedule
specified in the User’s Information Manual (and in this manual
as well).
3. Remind the owner of the need to call in a licensed contractor
should the boiler or system exhibit any unusual behavior.
4. Remind the owner to follow the proper shutdown procedure
and to schedule an annual start-up at the beginning of the
next heating season.
1. Shut down boiler:
• Follow “To Turn Off Gas to Appliance” instructions on boiler
and “Operating instructions”.
• Do not drain boiler unless it will be exposed to freezing
temperatures. If using antifreeze in system, do not drain.
2. Follow shutdown procedure.
3. Remove venting system connection to boiler.
4. Remove top jacket panel. Turn back insulation.
5. Remove collector box/transition assembly. Clean sealant from
assembly and sections.
6. Remove radiation plates hanging between sections.
7. Remove burners from base. Brush and vacuum burners to
remove all dust and lint. Verify that all burner ports are free of
debris.
8. Place newspapers in base of boiler to collect soot.
9. Clean between sections with wire flue brush.
10. Remove newspaper and soot. Vacuum or brush base and
surrounding area.
11. Reinstall radiation plates.
12. Replace collector box/transition assembly. Seal with sealant.
Obtain gas-tight seal to prevent flue gas spillage and carbon
monoxide emissions, resulting in severe personal injury or
death.
13. Replace insulation and jacket top panel.
14. Start up boiler following
pages 18 –20
of this manual and the
boiler “Operating Instructions”. Excessive sooting indicates
improper gas combustion. If found check for proper combus
-
tion and make any necessary adjustments.
❏
Cleaning boiler heating surfaces
Boiler relief valve
1. Inspect the relief valve and lift the lever to verify flow as in the
following warnings, excerpted from a relief valve manufac
-
turer’s warning label. Before operating any relief valve, ensure
that it is piped with its discharge in a safe area to avoid severe
scald potential. Read manual Section 4, page 13
, before
proceeding further.
Safety relief valves should be reinspected AT LEAST
ONCE EVERY THREE YEARS, by a licensed
plumbing contractor or authorized inspection
agency, to ensure that the product has not been
affected by corrosive water conditions and to
ensure that the valve and discharge line have not
been altered or tampered with illegally. Certain
naturally occurring conditions may corrode the valve
or its components over time, rendering the valve
inoperative. Such conditions are not detectable
unless the valve and its components are physically
removed and inspected. This inspection must
only be conducted by a plumbing contractor or
authorized inspection agency — not by the owner.
Failure to reinspect the boiler relief valve as directed
could result in unsafe pressure buildup, which can
result in severe personal injury, death or substantial
property damage.
2. After following the above warning directions, if the relief valve
weeps or will not seat properly, replace the relief valve. Ensure
that the reason for relief valve weeping is the valve and not
over-pressurization of the system due to expansion tank
waterlogging or undersizing.
Following installation, the valve lever must be op-
erated AT LEAST ONCE A YEAR to ensure that
waterways are clear. Certain naturally occurring
mineral deposits may adhere to the valve, rendering
it inoperative. When manually operating the lever,
water will discharge and precautions must be taken
to avoid contact with hot water and to avoid water
damage. Before operating lever, check to see that
a discharge line is connected to this valve direct-
ing the flow of hot water from the valve to a proper
place of disposal otherwise severe personal injury
may result. If no water flows, valve is inoperative.
Shut down boiler until a new relief valve has been
installed.
The boiler contains ceramic fiber and fiberglass
materials. Use care when handling these materials
per instructions on page 48
of this manual. Failure
to comply could result in severe personal injury.
11 Service and maintenance
continued
