Raypak 260-401 Installation And Operating Instructions Manual

Contents

TROUBLESHOOTINGELECTRICAL (ELECTRONIC IGNITION IID)1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012WARNINGHIGH VOLTAGEFor qualified Technicians ONLYNOTE: Some heaters may be equipped withan ignition module that shuts off pilot gas ifpilot fails to light. To reset, interrupt power toheater.NOTE: Before troubleshooting, familiarize yourself with the start-up and checkoutprocedure.Check line voltage power, low voltage transformer, limit controller, thermostat(controller) and wiring.Pull ignition lead and check spark at module.Spark Okay?YES• Check ignition cable, ground wiring, ceramic insulator and gap, and correct.• Check boot of the ignition cable for signs of melting or buckling. Take protectiveaction to shield cable and boot from excessive temperatures.• Check that all manual gas valves are open, supply tubing and pressures aregood, and pilot burner orifice is not blocked.• Check electrical connections between module and pilot operator on gas control.• Check for 24 Vac across PV-MV/PV terminals on module. If voltage is okay,replace gas control; if not, replace module.NOTE: If S8600H goes into lockout, reset system. Lockout is used on L.P.G.models.• Check continuity of ignition cable and ground wire.• Clean flame rod.• Check electrical connections between flame rod and module.• Check for cracked ceramic flame rod insulator.• Check that pilot flame covers flame rod and is steady and blue.• Adjust pilot flame.• If problem persists, replace module.• Check for 24 Vac across MV-MV/PV terminals. If no voltage, replace module.• Check electrical connections between module and gas control. If okay, replacegas valve or gas control operator, i.e. pilot gas valve, flow switch etc.NOTE: IF S8600H goes into lockout, reset system.• Check continuity of ignition cable and ground wire.NOTE: If ground is poor or erratic, shutdowns may occur occasionally even thoughoperation is normal at the time of checkout.• Check that pilot flame covers flame rod and is steady and blue.• If checks are okay, replace module.• Check for proper thermostat (controller) operation.• Remove MV lead at module; if valve closes, recheck temperature controller andwiring; if not, replace gas valve.STARTTURN GAS SUPPLY OFF.TURN THERMOSTAT(CONTROLLER) TO CALLFOR HEATPOWER TO MODULE(24 V NOMINAL)YESSPARK ACROSSIGNITER/SENSOR GAPYESTURN GAS SUPPLY ONPILOT BURNER LIGHTS?YESSPARK STOPS WHENPILOT IS LIT?YESMAIN BURNER LIGHTS?YESSYSTEM RUNS UNTILCALL FOR HEAT ENDS?YESCALL FOR HEAT ENDSSYSTEM SHUTS OFF?YESTROUBLESHOOTINGENDSNONONONONONONORepeat procedure until troublefree operation is obtained.28Intermittent Pilot SystemTROUBLESHOOTING HONEYWELL S8600