Natco ANSI Z 21.10.3, Руководство по обслуживанию

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COMPLETE TEAR DOWN PROCEDURE
TOOLS REQUIRED: 5/16" NUT DRIVER ¼" FLAT HEAD SCREWDRIVER
3/8" DEEP SOCKET #2 PHILLIPS HEAD SCREWDRIVER
7/16" DEEP SOCKET 10" PIPE WRENCH
½" DEEP SOCKET 1 ¼" DRIVE INCH POUND TORQUE
3/8" WRENCH WRENCH (RANGE 0-200)
7/16" WRENCH SNAP RING OR NEEDLE NOSE PLIERS
NOTE:
SEE END OF THIS SECTION FOR PARTS DIAGRAMS.
1. DISCONNECT POWER FROM UNIT.
2. SHUT OFF GAS SUPPLY.
3. REMOVE CABINET DOOR.
4. SHUT OFF GAS VALVE BY TURNING THE BLUE KNOB ON THE GAS VALVE.
5. DISCONNECT THE AIR INLET PIPE AT THE SMALL END OF THE AIR INLET CONNECTOR BY LOOSENING THE HOSE
CLAMP WITH A 5/16" NUT DRIVER.
6. REMOVE THE CLEAR VINYL HOSE THAT RUNS FROM THE GAS VALVE TO THE AIR INLET ADAPTER.
7. BREAK THE GAS ORIFICE UNION BY TURNING THE UNION CLOCKWISE WITH A 10" PIPE WRENCH.
NOTE:
BE SURE NOT TO LOSE THE GAS ORIFICE HELD INSIDE THE UNION.
8. REMOVE THE BRASS BARB FROM THE AIR INLET ADAPTER WITH A 7/16" DEEP SOCKET.
9. LOOSEN THE AIR INLET ADAPTER AND PULL THE AIR INLET ADAPTER THROUGH THE SIDE OF THE CABINET.
NOTE:
BE SURE NOT TO LOSE THE AIR ORIFICE SNAPPED INTO THE END OF THE ALUMINUM PIPE.
10. REMOVE THE FOUR BRASS NUTS HOLDING THE ALUMINUM AIR INLET ASSEMBLY TO THE BLOWER, WITH A 3/8"
DEEP SOCKET.
11. REMOVE THE BLOWER OUTLET FLANGE GASKET FROM THE BLOWER.
12. REMOVE THE GAS VALVE WIRING HARNESS FROM THE GAS VALVE BY PRESSING ON THE TABS ON THE TOP
AND BOTTOM OF THE PLUG AND PULLING.
13. REMOVE THE TWO GREEN GROUNDING WIRES FROM THE TOP/REAR OF THE BLOWER BY TAKING OUT THE
GREEN GROUNDING SCREW WITH A 5/16" NUT DRIVER.
14. REMOVE THE BLACK WIRE FROM THE FLAME RECTIFICATION PROBE, BY PULLING ON IT.
15. REMOVE THE IGNITOR WIRING HARNESS FROM THE CONTROL BOARD BY PRESSING ON THE TABS ON THE TOP
AND BOTTOM OF THE PLUG AND PULLING.
16. REMOVE THE TWO BRASS NUTS RETAINING THE IGNITOR, WITH A 3/8" DEEP SOCKET.
17. GENTLY PRY THE IGNITOR BACK ABOUT 1/16 OF AN INCH, WITH A ¼" FLAT HEAD SCREWDRIVER. NOW PULL
THE IGNITOR STRAIGHT BACK. BE VERY CAREFUL THAT YOU DO NOT WIGGLE THE IGNITOR AT ALL!
18. REMOVE THE FLAME RECTIFICATION PROBE BY REMOVING THE SCREW TO THE LEFT OF THE ELECTRICAL
CONNECTOR WITH A #2 PHILLIPS HEAD SCREWDRIVER AND PULLING IT STRAIGHT BACK.
19. REMOVE THE CLEAR VINYL HOSE FROM THE LEFT/BACK OF THE BLOWER.
20. REMOVE THE BLOWER WIRING HARNESS FROM THE LEFT/BOTTOM OF THE BLOWER BY PULLING STRAIGHT OUT.
21. REMOVE THE FOUR BRASS NUT RETAINING THE BLOWER TO THE OUTER BURNER MOUNTING FLANGE WITH A
7/16" WRENCH.
22. PULL THE BLOWER STRAIGHT BACK BEING CAREFUL NOT TO LOSE THE SIGHT GLASS.
23. REMOVE THE BURNER BY PRYING IT AWAY FROM THE OUTER BURNER MOUNTING FLANGE AND THEN PULLING
IT STRAIGHT BACK.
24. REMOVE THE OLD BURNER MOUNTING FLANGE GASKET BY REMOVING THE SIX NUTS WITH A ½" DEEP SOCKET.
25. REMOVE ALL OF THE OLD GASKET MATERIAL FROM ALL SURFACES EXCEPT FOR THE SIGHT GLASS WINDOW
GASKET.