85
3. Inspect the wiring to verify the conductors are in
good condition and attached securely.
CaUTiOn
Label all wires prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation. Verify
proper operation after servicing.
4. Remove the ignition electrode and inspect it for
oxides. Clean the oxides from the electrode with
steel wool. Do not use sandpaper for the cleaning.
Inspect the ceramic insulator for cracks and replace
the ignitor assembly if necessary. Check the ignitor
electrode spacing gap. Refer to Figure 56 “Ignitor
Electrode Gap” for details.
10. Reinstall the burner, burner hood and fan/gas valve
assembly.
11. Reconnect any wiring which has been disconnected.
12. Inspect the heating system and correct any other
deciencies prior to restarting the boiler.
13. Follow Section XI System Start-up before leaving
installation.
14. Perform the combustion test outlined in Section XI
System Start-up.
15. Verify that the system PH is between 8.2 and 9.5/.
16. Check for vent terminal obstructions and clean as
necessary.
D. Recommended Heating System Water Treatment
Products:
1. System Cleaning and Conditioning:
a. The following heating system water treatment
products are recommended for an initial existing
heating system sludge removal, initial boiler
cleaning from copper dust, ux residue and any
boiler debris and for preventive treatment as
corrosion/scale inhibitors:
i. Fernox™ Restorer (universal cleaner, sludge
remover, scale remover, ux residue/debris
remover, corrosion inhibitor)
ii. Fernox™ Protector (Alphi 11, CH#, Copal)
(sludge remover, corrosion inhibitor)
Follow manufacturer application procedure
for proper heating system/boiler cleaning
and preventive treatment.
Above referenced products are available
from Cookson Electronics Company, 4100
Sixth Avenue, Altoona, PA 16602, Tel:
(814) 946-1611 and/or selected HVAC
distributors. Contact US Boiler for specic
details.
iii. Equivalent system water treatment products
may be used in lieu of products referenced
above.
2. System Freeze Protection:
a. The following heating system freeze protection
products are recommended for Alpine boilers:
i. Fernox™ Protector Alphi 11 (combined
antifreeze and inhibitor).
Follow manufacturer application procedure
to insure proper antifreeze concentration and
inhibitor level.
Above referenced product is available from
Cookson Electronics Company, 4100 Sixth
Avenue, Altoona, PA 16602, Tel: (814) 946-
1611 and/or selected HVAC distributors.
Contact US Boiler for specic details.
Figure 56: ignitor Electrode gap
5. Remove the fan/gas valve assembly from the burner
hood. Inspect for lint and dust. If signicant lint
and dust are found, disassemble the fan/gas valve
assembly to expose the swirlplate and fan inlet (see
the exploded diagram in the parts list at the back of
this manual). Vacuum these parts as required, being
careful not to damage the vanes on the swirlplate.
6. Remove the burner hood to access the burner and
the combustion chamber.
7. Remove the burner and vacuum any dust or lint
from the burner. If the burner shows signs of
deterioration or corrosion, replace it immediately.
Inspect the burner gasket and replace, if necessary.
8. Inspect the heat exchanger, clean and vacuum any
debris found on the surfaces. A soft nylon brush
must be used for cleaning. Remove insulation disc
and clean the surfaces by ushing with clean water.
Drain and ush the inside of the heat exchanger
and condensate collector. Do not use any cleaning
agents or solvents. Re-install insulation disc.
9. Inspect the condensate trap to verify it is open and
free from debris. Inspect condensate line integrity
between boiler and condensate neutralizer (if used)
and 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.