Camus Hydronics Valiant-FT II Series, Инструкция по установке и обслуживанию, Страница: 37 / 64

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PART 8 MAINTENANCE
CAUTION
It is important that all gas appliances be serviced by
qualified technicians. It is in your own interest and that of
safety to ensure that all local codes, and all the “NOTES”
and “WARNINGS” in this manual are complied with. The
serviceman must utilize a combustion analyzer with CO
2
and CO to set the appliance according to Camus®
Hydronics recommendations.
CAUTION
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and
dangerous operation.
Listed below are items that must be checked to ensure safe
reliable operations. Verify proper operation after servicing.
8.1
EXAMINE THE VENTING SYSTEM
Examine the venting system at least once a year. Check
more often in the first year to determine inspection interval.
Check all joints and pipe connections for tightness,
corrosion or deterioration. Flush the condensate drain with
water to clean. Have the entire system, including the
venting system, periodically inspected by a qualified service
agency.
WARNING
THE HEAT EXCHANGER UTILIZES A CERAMIC
FIBER MATERIAL REFRACTORY WHICH, AT HIGH
TEMPERATURES ABOVE 1750°F, CAN CONVERT
INTO
CRISTOBALITE. THE INTERNATIONAL
AGENCY FOR RESEARCH ON CANCER (IARC) HAS
CONCLUDED, “CRYSTALLINE SILICA INHALED IN
THE FORM OF QUARTZ OR CRISTOBALITE FROM
OCCUPATIONAL SOURCES IS CARCINOGENIC TO
HUMANS (GROUP 1).
”
AVOID BREATHING DUST AND CONTACT WITH
SKIN AND EYES.
Follow the Precautions Below:
• Use a NIOSH certified dust respirator (N95). This type
of respirator is based on the OSHA requirements for
Cristobalite at the time this document was written. Other
types of respirators may be needed depending on job
site conditions. Current NIOSH recommendations can
be found on the NIOSH website: http://www.cdc.gov/
niosh/homepage.html. NIOSH approved respirators,
manufacturers, and phone numbers are also listed on
this website.
• Wear long-sleeved, loose fitting clothing, gloves, and
eye protection.
• Apply enough water to the combustion chamber lining
to prevent dust.
• Wash potentially contaminated clothes separately from
other clothing. Rinse washer thoroughly.
NIOSH stated First Aid.
• Eye: Irrigate immediately.
• Breathing: Fresh air.
8.2 CLEANING BOILER HEAT EXCHANGER
1. Shut down boiler:
a.) Turn the main power off to the boiler.
b.) Shut off gas supply at the main manual valve.
c.) DO NOT drain the boiler unless it will be exposed
to freezing temperatures. If using antifreeze fluid
in the heat exchanger, DO NOT drain!
2. Allow time for the boiler to cool to room temperature if
it has been firing.
3. Remove igniter and flame sensor electrodes. If
necessary, clean with steel wool. DO NOT use
sandpaper.
4. Remove the fan/ venturi assembly from the heat
exchanger.
5. Remove burner.
6. Examine burner and clean if required.
7. Examine heat exchanger surfaces to determine if
cleaning is required. If cleaning is required remove
the nuts fastening the heat exchanger plate from the
heat exchanger.
8. Remove all the gaskets and refractory from the Heat
exchanger combustion chamber.
9. Disconnect the condensate fitting from the heat
exchanger and connect a hose (field supplied) directly
to the bottom of the heat exchanger to drain.
10. Use a vacuum cleaner or shop-vac to remove any
debris that has collected on the heat exchanger
surfaces. DO NOT use any type of solvent
11. Brush the heat exchanger with a nylon bristle brush.
DO NOT use a metal brush. Re-vacuum the heat
exchanger.
12. Finish cleaning by wiping down the boiler heating
surfaces with a clean, damp cloth.
13. Rinse out any additional debris with a low-pressure
water supply.
14. Re-install the heat exchanger top plate and fasten the
top plate nuts to heat exchanger.
15. Re-connect the fan assembly to the boiler mixing
tube, burner, igniter, flame sensor, and fan/ mixing
tube assembly. Fasten the nuts back to the heat
exchanger assembly.
16. Re-connect the condensate hose to the heat
exchanger.
NOTE
All gaskets on disassembled components must be
replaced with new gaskets/sealant on re-assembly, if
required. Gasket kits are available from the factory.
CAUTION
When the vent system is disconnected for any reason it
must be reassembled and resealed according to vent
manufacturer’s instruction.
8.3 CONDENSATE TREATMENT
Condensate occurs when the products of combustion are
cooled below their dew point in the heat transfer process.
The liquid condensate formed from this high efficiency heat
transfer process is mildly acidic.