Aerco Esteem 399, Инструкция по установке и обслуживанию

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WARNING!!!
If gas flow
occurs, close the manual gas
shutoff valve and troubleshoot
the system to determine why
there is gas flow when the gas
valve should be deenergized.
Do not operate the boiler until
the problem is resolved or a fire
or explosion causing property
damage, personal injury or loss
of life may occur!
3. Press the “Reset” key to return to
normal operation.
17.1.6 - Check ignition
and flame sense
electrodes
1. Remove the fan-burner assembly
unit (see Section 17.3);
2. Remove any deposits accumulated
on the ignition/flame sense
electrode using sand paper;
3. Check electrodes positioning meet
Section 17.4.
17.1.7 - Check wiring and
connections
Inspect all heater wiring, making
sure wires are in good condition and
securely attached.
17.1.8 - Perform
performance verification.
1. Run the unit at maximum input
following Section 15.9. When in
steady state, check the efficiency
using recognized methods.
Efficiency shall be not less than
88%.
2. Verify cold water pressure is correct
and that operating pressure does
not go too high (could be a problem
on the expansion tank).
17.1.9 - Flame inspection
1. Inspect flame through sigh glass.
2. If the flame is unsatisfactory at
either high fire or low fire, clean the
burner following Section 17.3.
17.1.10 - Check flame
signal
1. Start unit and perform the
procedure of Section 15.8 to check
the flame signal.
2. At high fire and low fire the flame
signal (parameter
1008
) should
be within values given in Section
18, header “ionisation current”. A
lower flame signal may indicate
a fouled or damaged flame
sense electrode. If cleaning the
flame sense electrode does not
improve, ground wiring is in good
condition, and ground continuity
is satisfactory, replace the flame
sense electrode.
17.1.11 - Check relief
valve
Inspect the relief valve and lift the
lever to verify flow. Before operating
any relief valve, ensure that it is piped
with its discharge in a safe area to
avoid severe scald potential. Read
Section 8.2.2 before proceeding
further. Relief valve should be re-
inspected 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 user.
WARNING!!!
Failure to
re-inspect the relief valve as
directed could result in unsafe
pressure buildup, which can
result in severe personal injury,
death, or substantial property
damage.
17 - MAINTENANCE