Loading ...
Loading ...
Loading ...
Part number 550-142-330/0421
40
SGO
OIL-FIRED NATURAL DRAFT STEAM BOILER — SERIES 4 — Boiler Manual
SERVICETECHNICIANONLY—readandfollowcompletely.
Annual service
Boiler relief valve
After following the warning directions below, if the relief valve weeps or
will not seat properly, replace the relief valve.
Before testing, make certain discharge
pipe is properly connected to valve
outlet and arranged to contain and
safely dispose of boiler discharge. Wear
gloves to protect your hands from hot
surfaces. Verify that discharge piping
is installed in accordance with this
manual and the instructions on the
relief valve tag. Failure to comply will
expose operator and others to severe
personal injury or death.
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.
Check the setting of the boiler limit control. The control
should never be set with a pressure above 10 psig. Operating
at a higher pressure can cause damage to the boiler relief valve.
The boiler relief valve must be tested at least monthly during
the heating season to verify the valve and discharge piping
flow freely.
Inspect the boiler relief valve and the relief valve discharge
pipe for signs of weeping or leakage.
If the relief valve often weeps, the expansion tank may not be
working properly.
• Immediately contact your qualified service technician to
inspect the boiler and system.
If corrosion and/or deposits are noticed within the valve body,
testing must be performed more often. A “try lever test” must
also be performed at the end of any non-service period. Follow
the instructions below for a “try lever test”:
• With the system at operating pressure, lift and hold the
test lever fully open for at least 5 seconds to flush the valve
seat free of sediment and debris. Then release lever and
permit the valve to snap shut.
Review with owner
1. Review the Homeowner’s Information, pages 2
through 7 with the owner.
2. Emphasize the need to perform the maintenance
schedule specified on page 5.
3. Remind the homeowner of the need to call in a
licensed contractor should the boiler or system
exhibit any unusual behavior.
4. Remind the homeowner to follow the proper shut-
down procedure and to schedule an annual start-
up at the beginning of the next heating season.
Service and maintenance (continued)
Boiler and system piping
Visually inspect for leaks around piping, circulators,
relief valve and other fittings. Check oil lines and
boiler air for signs of oil leakage. Immediately call a
qualified service technician to repair any leaks.
Have leaks fixed at once by a qualified
service technician. Continual fresh
makeup water will reduce boiler life.
Minerals can build up in sections,
reducing heat transfer, overheating cast
iron, and causing section failure.
Do not use petroleum-based cleaning
or sealing compounds in boiler system.
Severe damage to boiler and system
components can occur, resulting in
possible severe personal injury, death or
substantial property damage.
Loading ...
Loading ...
Loading ...