Raypak 2600401 Installation & Operating Instructions Manual

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Raypak 2600401 Installation & Operating Instructions Manual Manual pdf 28 page image

2810. Carefully slide out the burner tray assembly.11. Reverse above procedure to reinstall.Gas Valve Removal1. Shut off main electrical power switch to heater.2. Shut off gas supply to the heater.3. Remove front door.4. Disconnect gas line from gas valve.5. Disconnect wires, pilot tubing and bleed line, ifrequired.6. Remove (2) screws that secure gas valve to jack-et.7. Turn vertical gas pipe from manifold slightly andunscrew gas valve.8. Reverse above procedure to re-install.Main Burner And Orifice Removal1. Remove burner drawer. See burner drawerremoval procedure.2. Remove (8) screws from the hold down brackets.3. Remove (8) screws from the left and right sides ofthe Manifold assembly. Detach the manifoldassembly from the burner tray assembly.4. Use a long 3/8” socket wrench to remove orificesfrom the atmospheric gas manifold, 9/16” for LowNOx.5. Remove burners by raising the bracket on theback end of the burners up and out of their slots.6. Reverse above procedure to re-install.Pilot Removal1. Disconnect pilot tubing from gas valve.2. Remove (4) screws from control box. Open thecontrol box.3. Remove the pilot wire from the ignition wire.4. Remove (2) screws that mount the pilot bracket tothe air manifold assembly.5. Pull the pilot bracket downward and outward.6. Reverse above procedure to re-install.Combustion Fan Removal1. Remove burner drawer. See burner drawerremoval procedure.2. Remove (4) screws the mount the combustionblower to the manifold assembly.3. Reverse above procedure to re-install.Normal Inspection ProceduresFirst and third month after initial start up and then onan annual basis. If problems are found, refer toTrouble Shooting Guide for additional directions.1. Remove top of heater and inspect heat exchangerfor soot and examine venting system.2. Remove rear header and inspect for scaledeposits.*3. Inspect pilot and main burner flame and firing rate.*4. Inspect and operate all controls and gas valve.*5. Visually inspect system for water leaks.*6. a. Oil pump motor and bearing assembly, if oilcups are provided.b. Disconnect pump from header and check con-dition of pump impeller. Check condition ofbearing by attempting to move impeller fromside to side. Replace any parts showing wear.c. Check pump coupler for wear and vibration.7. Check flow switch paddle (if provided).8. Clean room air intake openings to assure ade-quate flow of combustion and ventilation air.9. Keep heater area clear and free from combustiblematerials, gasoline, and other flammable vaporsand liquids.*Should be checked monthly. (Takes approximately15 minutes).Repair SectionTube Cleaning Procedure (Typical)Establish a regular inspection schedule, the frequencydepending on the local water condition and severity ofservice. Do not let the tubes clog up solidly. Clean outdeposits over 1/16" in thickness.Fig. 32: IID PilotCAUTION: Combustion air must not be contami-nated by corrosive chemical fumes which candamage the heater and void the warranty.