13 MB 19th Jul 2013 5995373155 Frigidaire 27 Dryers Gas and ...

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1. Air being drawn in around the door opening, betweenthe drum and the front panel, or around the foam sealbetween the front duct and the blower housing, replacessome of the air being drawn through the drumand lowers the efficiency of the dryer.Note:An air leak that occurs around the dooropening or between the drum and the frontpanel usually will cause lint to build up onthe inner panel of the door.2. Air being pushed out around the blower housingor vent pipe inside the dryer, allows some of themoisture that has been removed from the clothesto be recirculated.Short unrestricted vents:Airflow problems:The venting system in the dryer is designed to operateunder some back pressure. This back pressure isneeded to slow the airflow and allow the air to be heatedbefore it passes through the clothes.Airflow problems are usually caused by restrictions,leaks or short unrestricted vents resulting in longer dryingtimes, hotter dryer surfaces and in extreme casescausing the thermal limiter to open on electric dryers.Note:With short direct vent runs; such as you havewhen the dryer is installed against an outsidewall, use a 2 1/2” vent cap rather than a 4”vent cap.Restrictions:Restrictions can occur any place in the airflow system,but the most common are:1. Installing the dryer in a small inclosed area; suchas a closet without a louvered door that reducesthe intake air.2. Fan problems caused by either a slow runningmotor, a broken or deformed fan blade or adeformed fan housing.3. A lint restriction in the lint screen area. Operatormay not be cleaning the lint screen before using.Electrical Operation (Electric Dryers Models WithoutElectronic Moisture Sensor):Note:L1REDSIGNALSWITCHBAlways refer to the wiring diagram orschematic with the product.120 VACCYCLE SIGNALCWHTNGRNCABINET240 VACBLUENCCWHT 4DOORSWITCHNO120 VACSTARTGRAY62STARTSWITCHL2BLK4. A restriction in the exhaust system in the housecaused by the design of the vent, such as; thediameter of the vent pipe being too small, too long,too many right angles, or a collapsed or lint restrictedvent pipe.XRTMTMTHERMALLIMITER4.4KYELRUN5MOTORTANGRN1CABINETBASEYELBLKHEATER4500 WATTSNote:Air leaks:Problems caused by the vent pipe in the houseare not cover under the product warranty.TIMERAORG4152FABRICSELECTORSWITCHBLUEREDBLK28KCONTROLTHERMOSTATORG/BLKHIGH LIMITTHERMOSTATTwo types of air leaks may occur:38
Auto Dry CycleWhen the dryer is connected to electrical power, line 1is connected to terminal B of the timer and the inputterminal of the cycle signal switch. When the timer isset to the Auto Dry cycle, contacts B to C and B to A inthe timer are closed. This provides power to four circuits;the drive motor circuit, timer motor circuit, heatingcircuit and cycle signal circuit.Drive Motor Circuit:When contacts B to C are closed, line 1 is appliedthrough the thermal limiter (a non-resettable fusemounted on the rear wall of the dryer) to terminal M4 ofthe drive motor. Terminal M4 is connected inside themotor to one side of the thermal overload. (The thermaloverload protects the motor from being damaged by overheating.)The other side of the thermal overload is connectedto one end of both the run winding and the startwinding of the drive motor. When the motor is not turning,the other end of the start winding is connected internallyto terminal M5 of the motor through the NC contactof the motor centrifugal switch. The other end of the runwinding is also connected internally to terminal M5.When the motor is not turning, the start winding andthe run winding are connected in parallel. TerminalM5 of the motor is connected to the start switch, whichis connected to neutral through the door switch. Whenthe start switch is activated, with the dryer door closed,line 1 to neutral voltage is applied across both the startand run windings of the drive motor. With power appliedto both the start and run windings, the motor startsto turn.39When the speed of the motor reaches about 80% ofit’s normal run speed the contacts of the centrifugalswitch change from NC to NO, opening the circuit tothe start winding and connecting the run winding tomotor terminal M6. Terminal M6 is connected to neutralthrough the door switch. The start winding is nowout of the circuit and the run winding circuit is bypassingthe start switch, so the switch can be released withoutinterrupting power to the run winding.The drive motor preforms two tasks in the dryer. Apulley attached to one end of the motor shaft uses abelt to drive the dryer drum. The blower wheel is attachedto the other end of the motor shaft to pull the airthrough the clothes and force it out the exhaust vent.The Timer Motor Circuit:When timer contacts B to C close, line 1 is applied toone end of the timer motor winding. The other end ofthe timer motor winding is connected to one end of theheater through a 4400 Ohm dropping resistor that allowsthe 120 volt timer motor to operate in a 240 volt circuitwithout burning up. The other end of the heater is connectedto line 2 by a centrifugal switch in the motor wheneverthe motor is turning. The circuit formed by contactsB and C of the timer, the timer motor and the droppingresistor are in parallel with a circuit formed by contactsB and A of the timer, contacts 1 and 2 of the fabric selectorswitch, the contacts of the control thermostat andthe contacts of the high limit thermostat. This circuithas either zero resistance when the contacts of the controlthermostat are closed or infinity resistance when thecontacts of the control thermostat are open. Since electricalcurrent follows the path of least resistance, whenthe contacts of the control thermostat are closed all thecurrent flow is through the circuit formed by contacts Band A of the timer, contacts 1 and 2 of fabric selectorswitch, the contacts of the control thermostat and thecontacts of the high limit thermostat. With no currentflowing through the timer motor winding, the timer motordoes not turn. When the heat in the dryer opens thecontacts of the control thermostat the only path for currentflow is through the circuit formed by the timer motorwinding and the dropping resistor. With current flowingthrough the timer motor winding, the timer advances. Atthe start of the cycle the amount of heat energy neededto drive the moisture from the clothes slows the temperaturerise in the dryer and the contacts of the controlthermostat remain closed preventing the timer from advancing.As the clothes dry, it takes less heat energy tomaintain the temperature in the drum. This causes thecontacts of the control thermostat to be open a higherpercentage of the time allowing the timer motor to runmore.The Heating Circuit:Timer contacts B to A connect line 1 to terminal 1 ofthe fabric selector switch. The fabric selector switchallows the dryer to be set to operate at Regular temperature,Low temperature and Air Fluff. In the Air Fluff settingthe drum turns but the heater does not operate.
Page 2 and 3: SAFE SERVICING PRACTICES - ALL APPL
Page 4 and 5: Gas supply requirements 28Location
Page 6 and 7: Removing the top console skirt (Top
Page 8 and 9: QUICK REFERENCE SHEETSPECIFICATIONE
Page 11: SAMPLE WIRING DIAGRAM FOR ELECTRIC
Page 14 and 15: SECTION A - OPERATING INSTRUCTIONSC
Page 16 and 17: SECTION B - OWNERS GUIDEFor your sa
Page 18 and 19: location, have it checked and reins
Page 20 and 21: items, but do not let items hang ov
Page 22 and 23: Avoid ServiceChecklistOCCURRENCEDry
Page 24 and 25: FRIGIDAIRE DRYER WARRANTYYour Frigi
Page 26 and 27: PRE-INSTALLATION REQUIREMENTSTools
Page 28 and 29: EXHAUST DIRECTIONAll dryers shipped
Page 30 and 31: National Standard for Mobile Homes.
Page 32 and 33: GROUNDING REQUIREMENTSNon-Canadian
Page 34 and 35: on the terminal block. Tighten the
Page 36 and 37: Control thermostatTimerOnce inside
Page 40 and 41: Whenever the fabric selector switch
Page 42 and 43: Note:In the auto regular cycle, the
Page 44 and 45: change from NC to NO, opening the c
Page 46 and 47: Electrical Operation (Gas Dryers Mo
Page 48 and 49: The gas valve has two chambers in s
Page 50 and 51: SECTION F - TROUBLESHOOTING FLOW CH
Page 52 and 53: Gas dryer completely inoperative.No
Page 54 and 55: Electric dryers without electronic
Page 56 and 57: Electric and Gas dryers; blower mot
Page 58 and 59: Gas dryers; blower motor runs but d
Page 60 and 61: SECTION G - TEARDOWNThis section wi
Page 62 and 63: Removing the timer: (Front console
Page 64 and 65: Removing the press saver option swi
Page 66 and 67: Removing the end caps: (Top console
Page 68 and 69: Removing the door catch:1. Disconne
Page 70 and 71: 4. Release the five tabs, three at
Page 72 and 73: Releasing the dryer belt:1. Remove
Page 74 and 75: Note: Do not lose the grounding bal
Page 76 and 77: Removing the idler pulley:1. Discon
Page 78 and 79: Removing the sensor: (Gas dryers)1.

13 MB 19th Jul 2013 5995373155 Frigidaire 27 Dryers Gas and ...

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