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7. Inspect the heat exchanger combustion
chamber
,
clean and vacuum any debris found
on the surfaces. If required, brush the coils
of the heat exchanger using a non-abrasive,
non-metal bristle brush. Any cleaning of
the combustion chamber with acid or alkali
products is prohibited. Do not use any
cleaning agents or solvents. If insulation disc
has signs of damage, it must be replaced.
8. Inspect the condensate trap
to verify
it is open and free from debris. Inspect
condensate line integrity between boiler and
condensate neutralizer (if used), condensate
neutralizer and the drain. Clean/repair if
needed.
If the condensate neutralizer is used, check pH
before and after the neutralizer to determine
neutralizing effectiveness. Replace limestone
chips and clean out the neutralizer if needed.
9. Inspect the flue temperature sensor cap
to verify that it is free from leakage and
deterioration. Replace if needed.
10. Inspect vent connections and vent connector
to heat exchanger seals to verify that they are
free from leakage and deterioration. Repair as
needed. Follow all instructions in Section IV
“Venting” when reassembling vent system.
11. Check for vent and air intake terminal
for obstructions and clean as necessary.
Check rodent screens in vent and air intake
terminations to verify they are clean and free of
debris.
12. Reinstall the burner/blower/gas valve
assembly
and secure with M6X1 hex flange
nuts. Tighten the hex nuts in star pattern with
wrench to 5Nm (44 lbf. In) torque.
13. Reconnect any wiring
which has been
disconnected.
14. Verify
that the system pH is between 7.5 and
9.5.
15. Inspect the heating system
and correct any
other deficiencies prior to restarting the boiler.
16.
Inspect low water cutoff
(if used).
a. Hydrolevel 1100H4 (100592-01). Refer to
instructions provided with kit.
Figure 46: Igniter Electrode Gap
3. Remove the igniter assembly and flame
sensor
and inspect them for oxide deposits.
Clean the oxide deposits from the igniter
electrodes and flame sensor rod with steel
wool. Do not use sandpaper for the cleaning.
Inspect the ceramic insulators for cracks
and replace the igniter assembly and/or
flame sensor if necessary. Check the igniter
electrode spacing gap. Refer to Figure 46
“Igniter Electrode Gap” for details.
4. To gain access to boiler burner and
combustion chamber,
first disconnect and
remove gas inlet piping from gas valve. Then,
remove six M6X1 hex flange nuts and take out
the burner/blower/gas valve assembly from
the boiler. To prevent stud breakage, apply a
generous amount of good quality penetrating
oil to nuts and let it soak in prior to attempting
nut removal.
5. Inspect the assembly
for lint and dust
presence. If significant lint and dust
accumulations are found, disassemble the
blower/gas valve assembly to expose the swirl
plate and blower inlet. For parts identification,
refer to Section XIII “Repair Parts”. Vacuum
these parts as required, being careful not to
damage the vanes on the swirl plate.
6. Vacuum any dust or lint
from the burner
if present. If the burner shows any visual
deterioration or corrosion signs, replace it
immediately. Inspect the burner gasket and
replace if necessary.
XI. Service and Maintenance
(continued)
ATTENTION Electrical Shock
Hazard. Label all wires prior to disconnection
when servicing controls. Wiring errors can
cause improper and dangerous operation.
Verify proper operation after servicing.
Failure to properly secure
the burner/blower/gas valve assembly to the
heat exchanger could lead to property damage,
personal injury or loss of life.
WARNING
CAUTION
Au moment de l´entretien des commandes,
étiquetez tous les fils avant de les débrancher.
Les erreurs de câblage peuvent nuire au bon
fonctionnement et être dangereuses.
S´assurer que l´appareil fonctionne
adéquatement une fois l´entretien terminé.
Summary of Contents for Alpine ALP080B
Page 76: ...76 103448 10 6 18 VIII Electrical continued...
Page 77: ...103448 10 6 18 77 VIII Electrical continued Figure 27 Wiring Connection Diagram...
Page 78: ...78 103448 10 6 18 Figure 28 Ladder Diagram VIII Electrical continued...
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