Honeywell RA890G Скачать руководство пользователя страница 11 | Manualshive

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Содержание RA890G

Страница 1: ...es resistance to vibration Push to reset safety switch button is in dust resis tant enclosure Safe start check prevents start if flame or flame simulating failure is present Automatic safety switch lockout if flame fails on start or if flame is not re established after a flame failure When limit control opens control de energizes ignition and fuel valves but safety switch lockout will not occur Te...

Страница 2: ...uty 125VA 125VA Alternate Rating 25 VA pilot duty plus one or more motorized valves with total rating of 400 VA opening 200 VA holding MAXIMUM Models without alarm contacts 50 Hz 115 F 46 C 60 Hz 125 F 52 C Models with alarm contacts 50 Hz 105 F 41 C 60 Hz 115 F 46 C ALARM CONTACTS Optional Isolated spdt contacts Alarm terminals are male quick connects female quick connectsincludedforfieldinstalla...

Страница 3: ... plicable local electrical codes ordinances and regulations 2 Limitsmustberatedtocarryandbreakcurrentto theignitiontransformer pilotvalve orfirststage oilvalve andmainfuelvalve s simultaneously 3 AllexternaltimersmustbeListedorComponent Recognized by authorities that have jurisdiction forthespecificpurposesforwhichtheyareused Follow the burner manufacturer instructions when sup plied otherwise pro...

Страница 4: ...ORTANT Do not run high voltage ignition trans former wires in the same conduit with the flame detector wiring 5 Refer to Fig 2 and 3 for typical field wiring connec tions Follow the burner manufacturer s wiring diagram if provided Fig 2 Gas system with interrupted ignition APPLICATIONS Either a line or low voltage controller can be used If a line voltage controller is used connect it between the l...

Страница 5: ...E OIL VALVE IF USED OIL VALVE OperationAnd Checkout CAUTION 1 Use extreme care while testing the RA890G line voltage is present on some terminals and contacts when power is On 2 Disconnect power supply before removing cover removing RA890G from subbase or reinstalling RA890G onto subbase PRELIMINARY CHECKS Before placing the system in operation complete the following preliminary checks 1 Check wir...

Страница 6: ...an a needle width 2 The flame current is at least 1 5 microamperes for an ultraviolettypedetectorsuchasusedwiththeRA890G If a satisfactory reading is not obtained check the power sourcefortheproperlinevoltage andtheflamesizeandthe detector for proper sensing Directions for obtaining a steady current reading are included in the instructions packed with the C7027 C7035 or C7044 Ultraviolet Flame Det...

Страница 7: ...tes for the purge of unburned gases in the firebox before proceeding to the next step 10 Repeat the entire turndown test until the flame is established promptly in step 7 11 Turn up the pilot to full flame at the completion of the test Perform a flame current check before leaving the job IGNITION SPARK RESPONSE TEST The flame detection system should not respond to the ignition spark no meter movem...

Страница 8: ... lens 6 DO NOT MANUALLY PUSH IN THE RA890 RE LAYS This may damage the relays and it is an unsafe practice because it overrides the protective features of the relay Clean relay contacts only as instructed below PERIODIC MAINTENANCE The specific maintenance schedule setup depends on severalfactorsincludingtypeofequipmentbeingcontrolled operating conditions dirt and heat especially cost of a nuisance...

Страница 9: ...e flame detector or external circuit Replace the detector TEST STARTING OPERATION 6 Set controller to call for heat increase setpoint 7 Observe load relay for pull in a Load relay pulls in to light pilot and start burner proceed to step 11 b Load relay does not pull in proceed to step 8 c Loadrelaypullsinbutdoesnotlightorburnerdoesnot start proceed to step 10 8 Check line voltage controller if use...

Страница 10: ...result from extreme low voltage notifypowercompany orfromalooseconnection tighten Flame relay chatter may result from improper combus tion adjust burner or soot or carbon on flame detector clean and correct the cause REPEATED LOCKOUTS OR CONTROL FAILURES The most common causes of repeated failure of this control or flame detector or of repeated lockouts are a High ambient temperatures over 125 F 5...

Страница 11: ...11 60 2035 9 ...

Страница 12: ...Home and Building Control Helping You Control Your World Honeywell Inc Honeywell Limited Honeywell Limitée 1985 Douglas Drive North 740 Ellesmere Road Golden Valley MN 55422 Scarborough Ontario M1P 2V9 Printed in U S A www honeywell com bbc ...

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