Freestyle 80 - Page 106

Part number 550-142-850/0716
106
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WALL MOUNT GAS-FIRED WATER BOILER — Boiler Manual
33 Maintenance (continued)
Figure 140)NSPECTINGANDCLEANINGHEATEXCHANGER
Inspect and clean the heat exchanger
Wait until heat exchanger/boiler is cooled down
BEFOREPROCEEDING&AILURETODOSOCANCAUSE
severe injury.
1. See Figures 140 and 144.
2. Use a 10mm wrench or socket to remove the five (5) nuts that
secure the burner cover plate to the heat exchanger.
3. Remove the heat exchanger cover plate, gasket, burner and
its gasket.
4. )NSPECTTHEREFRACTORYFORANYDAMAGEREPLACEIFNECESSARY
5. Remove ignitor.
6. "EFOREUSINGWATERTOCLEANTHEHEATEXCHANGERREMOVETHE
CONTROLMODULE,ABELWIRESIFTHEYARENOTLABELED3ETASIDE
2EMOVEALLCONNECTORSANDWIREHARNESSESFROMTHECONTROL
module and then remove the screw securing it to the bracket.
7. Use a vacuum cleaner to remove any accumulation on the
HEATINGSURFACES4HISINCLUDESREMOVINGANYPIECESOFREFRAC-
tory that may have dropped into the exchanger.
Figure 141#LEANINGTHEHEATEXCHANGER
Figure 142#LEANINGTHEHEATEXCHANGER
Figure 143#LEANINGTHEHEATEXCHANGER
11. Dry with a clean rag.
12. Reinstall the spring.
13. Reinstall the burner, the burner gasket and ignitor.
14. Reinstall exchanger cover plate and gasket to heat
exchanger.
15. 4IGHTENTHEHEATEXCHANGERCOVERPLATESlVEMM
nuts using a torque wrench. The nuts must be secure, but
the torque must not exceed 20 inch-pounds
 0ERFORMACOMPLETESTARTUPPROCEDUREWHENPUT-
ting the boiler back into service. See page 67 and all
INSTRUCTIONSFORSTARTUPANDVERIlCATION)NCLUDEA
soap suds leak test on all interior and exterior gas
PIPINGAFTERSTARTINGTHEBOILER
8. ,IGHTLYSPRAYCLEANWATERONALLOFTHEBOILERCOILSAND
CLEANANYRESIDUEOFFWITHPLASTICONLYBRUSH"ECAREFUL
NOTTODAMAGEBACKREFRACTORYWALL
9. 7IPEANYRESIDUEOFFCOILSWITHACLEANRAG
10. Spray clean water, to finish flushing combustion chamber.