Raypak 0042B, 0066B, 0180B manual Raypak Tube Cleaning Kit, Repairprocedures

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RAYPAK TUBE CLEANING KIT

LOW WATER CUT-OFF (WHEN INSTALLED)

The low water cut-off automatically shuts down burner whenever water level drops below probe. 90 second time delay prevents premature lockout due to temporary conditions such as power failure or air pock- ets. Flush float type devices at beginning of each heating season.

PROCEDURE FOR CLEANING FLUE GAS PASSAGEWAYS

Soot will clog areas behind fins and eventually cause tube failure. Any sign of soot at base of burners or around outer jacket indicates a need for cleaning.

1.Lift off drafthood and flue collector by removing bolts and screws.

2.Remove "V" baffles from heat exchanger.

3.Remove burner tray, see Burner Tray Removal.

4.Take garden hose and wash heat exchanger, mak- ing sure soot is removed from between fins. (Avoid excessive water against refractory).

5.Reassemble; when boiler is fired, some steam will form from wet refractory. This is normal.

NOTE: In extreme cases it may be necessary to remove the heat exchanger completely for cleaning. The sim- plest method is steam cleaning at a local car wash. DO NOT WIRE BRUSH!

CAUTION:

Soot is combustible, so exercise extreme care.

BURNER TRAY REMOVAL

1.Shut-off power and gas supply to the boiler. Dis- connect union(s) and pilot tubing when present; then loosen and remove burner hold-down screws.

2.Disconnect wires at gas valve and slide burner tray out.

MAIN BURNER AND ORIFICE REMOVAL

1. Remove screws and burner hold-down bracket.

NOTE: If the heat exchanger is sooted badly, the burner hold-down bracket and spacer can become distorted from direct flame impingement and this usually necessi- tates replacement of these parts.

2.Lift burners from slotted spacer and slide from orifices. Clean with a wire brush.

3.Orifices usually do not need to be replaced. To clean, run either copper wire or wood through orifice. Do not enlarge hole. To remove orifice, use a socket wrench and remove the manifold. DO NOT overtighten when reinstalling.

 

RAYPAK TUBE CLEANING KIT

 

 

 

Extension Pieces (5)

Auger with Carbide Tip

Wire Brush

Fig. #8154

 

 

 

 

 

 

 

 

 

 

 

 

 

5/8" - PN 052871F

 

 

7/8" - PN 052870F

 

 

REPAIRPROCEDURES

 

Another method is to remove the heat exchanger,

TUBE CLEANING PROCEDURE (TYPICAL)

ream tubes and immerse heat exchanger in non-inhibited

de-scale solvent.

 

 

Establish a regular inspection schedule, the fre-

HEAT EXCHANGER REMOVAL

 

 

quency of which depends on the local water condition and

 

 

 

 

 

severity of service. Do not let the tubes clog up solidly.

1.

Shut water, gas and electricity off, close valves,

Clean out deposits over 1/16" in thickness.

 

relievepressureandremovereliefvalve. Removeside

The boiler may be cleaned from the side opposite the

 

inspection panels.

 

 

water connections as shown, without breaking pipe

2.

Remove top holding screws.

 

 

connections. It is preferable, however, to remove both

3.

Remove draft diverter, lift and remove top and flue

headers for better visibility through the tubes and to be

 

collector on stack type models. Remove inspection

sure the residue does not get into the system.

 

panels.

 

 

Note that you do not typically remove the top pan or

4.

Loosen bolts and disconnect flange nuts on inlet-

the heat exchanger.

 

outlet header, loosen union(s) at gas pipe, and slide

After reaming with the auger, mount the wire brush

 

boiler away from piping until studs clear the heater.

and clean out the debris remaining in the tubes.

5.

Remove heat exchanger corner brackets.

 

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Contents RaythermTM Type H RESIDENTIAL BOILERS Models FOR YOUR SAFETY0042B, 0066B,0090B 0135B, 0180B INSTALLATION AND OPERATING INSTRUCTIONSGENERAL SPECIFICATIONS ContentsINSTALLATION PROCEDURES SERVICING PROCEDURESRECEIVING EQUIPMENT GENERAL SPECIFICATIONSCODE REQUIREMENTS 3. INSTALLATION PROCEDURESMOUNTING BASE CLEARANCEREQUIREMENTSVENTING CONNECTIONS COMMON VENTS VENT DAMPER INSTALLATION Hole in Vent Damper Blade Closed Position FLAIR DAMPER VENT DAMPER OPERATIONVENT DAMPER WIRING DIAGRAM WATER CONNECTIONS & SYSTEM PIPING GAS SUPPLY CONNECTIONSGASPRESSURE SINGLE-ZONEPIPING PIPING DIAGRAMSHOT WATER SUPPLY ZONE HEATING WITH INDIRECT DOMESTICZONE VALVES HEATINGUNITS AIR SCOOP DIAPHRAGM EXPANSION FEED TANK VALVEMULTIPLE ZONES WITH ZONE VALVES MULTIPLE ZONES WITH CIRCULATORSWIRING DIAGRAM KEY ELECTRICAL WIRINGWIRING DIAGRAMS Page Page WIRING DIAGRAM Dual-ZoneTaco Valve WIRING DIAGRAM Single-ZoneTaco ValveWIRING DIAGRAM Dual-ZoneHoneywell Valve Fig. # 2228eWIRING DIAGRAM: Power Vent System w/ Zone Valve WIRING DIAGRAM System with 3 Zone PumpsFig. #2232e Fig. #2233e Fig. #2234eFig. #2223.2e WIRING DIAGRAM Primary/Secondary Pumping SystemHoneywell Zone Valve Note Low water cut-offLWCO and system switch supplied by others GENERAL LOCATION OF CONTROLS SERVICING PROCEDURESFor Standing Pilot Models START-UPPROCEDURES Lighting the BoilerFilling the System Checking the CirculatorROBERTSHAW PILOT HONEYWELL PILOTTO TURN OFF GAS TO THE BOILER Models FOR AUTOMATIC IGNITION MODELSTO TURN OFF GAS TO BOILER SHUT-DOWNPROCEDURE3.For Honeywell valve For Robertshaw valveFOR AUTOMATIC IGNITION SYSTEMS SAFE SHUT-DOWNTESTS LIMIT ACTION INSPECTION PROCEDURES BURNERSFLAME FAILURE INSPECTIONSCHEDULEREPAIRPROCEDURES RAYPAK TUBE CLEANING KITHEAT EXCHANGER RE-ASSEMBLY PROBLEM TROUBLESHOOTING GUIDESOLUTIONS IMPORTANT NOTICE10Defective ignition module or defective gas valve DANGER - SHOCK HAZARD ADJUSTMENT/REPLACEMENTOF COMPONENTSRAYPAK, INC 2151 Eastman Avenue Oxnard, CA REPLACEMENT PARTS LISTPage Page Page HEAT EXCHANGER WARRANTY LIMITED PARTS WARRANTYADDITIONAL WARRANTY EXCLUSIONS PARTS REPLACEMENT
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