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Service Manual 2/1999

1. 7 Wiring Diagram Motion Technology Inc UL File E167654 i I i J1 I 5 and 412 V dc Class 2 i i i Revised 9 08 98 i i i i YELLOW 1 o i F i i Home N C 1 1 i N White Red 1 PN 1 t E i8 Circuit Board i Part 10079K y ECM Basket Motor a E Used Only with K Type a 12 VDC I t Thermocouple eens i Q a 2 wnite Black 1 o S a o t aa S 9 1 l 8 2 o e i Circuit Board J10 pin 2 Connection F i OE see N D k Motor tS 2 2 2 o 1 o o 8 1 xa malc n g gt gt E gt LETS Heater Bon Ay AEN E 1 2 o T 1 ig pee E o 450 Man Reset 9 98 Replace only with i 5 Thermal Cut Out Li Class CC Fus J 2314667 ll SL PN FNQR 124 EET 1234 i ee ii logo Heater T i S T 240 ACV i 4800 Watts or 3750 Watts MTI 10 i 18 Ga Brown e i t i 4 18 Ga Blue i equ i ES t i K Type i Thermocouple i 117 ROE ADACV Toi ES l i i I 1 OA 0d dh i i 1 o TD 1 5 1 t d Power contactor i E or I i 1 t 208 240 ACV 12 Ga Brown or Black ES am 2 4 Ga Brown 1 J ous os JP2 Am 50 60 Hz 1 i J2 Power Supply 12 Ga Blue or White a i 12 Ga Blue d 12 Ga Green or Green Yes E 112 63 Green ice 05 Amp 3 5 Amp Max Red Blue ee P p 11 po Motion Technology Inc Primary id CONAN GES At rerom e vr cete tr IR a AA A ae lta ks ett 6 huron D
2. Ribbon Cable M3 Branch cucut LEP E between any 15 Basket Motor y Butt Splice live parts and the RTD and all of its d Normally Closed associated VW lu ockel irl os Y pampa SRE Wiring 4000hm RTO f f i 18 2 Cable g amp Socket e v y y Hester Plu 14 42 12 Ga Blue A 23 Cable Line In J A 12 Ga Brown ul ee gt Heater Coil o o i Heater Box Assy Butt Ji wv I Figure 1 MTI 10 Wiring Diagram AUTOFRY Models FFG 10 and MTI 10 RTD Circuit Trouble Shooting Condition Blinking Wait light and 417 at display Erratic temperature displays Oil temperature over 400 F excessive smoking of oil and the high limit trips 1 Inspect the oil level in the oil pot The oil level should be approximately 2 from the top edge of the oil pot Fill the oil pot if necessary Inspect the probe for visible damage Test Probe 8 Replace if necessary see Testing the RTD Inspect the connection between the RTD plug and Cable and the heater box socket see figure 2 Ensure that the connections at the RTD Plug and socket fit firmly Clean any and all oil from the connections Replace the plug and or socket if necessary Replace the cable assembly if necessary Inspect the RTD cable for cracks and or cuts Replace the cable assembly if necessary Ins
3. Ma Ms el OL wi x we Pt ds Pre Optional Electrical J O Chamber Cooling Fans S S a LEE 2 o z 8 gt Q 3 J9 For models with serial numbers 1111 40 thru 1141 40 there are three 240 V ac exhaust blowers used within the filter chamber There are no cooling fans used for the electrical chamber as there is more than adequate ventilation in these models For models with serial numbers 1142 40 and higher there is a single 240V ac exhaust blower within the filter chamber Again no cooling fans are used in these models AUTOFRY Model MTI 40 Fan Circuit For models with serial numbers 1111 40 and higher accessing the exhaust blower s is done by removing the top panel from the AUTOFRY After removing the top panel lift out the fire damper The fire damper is safety interlocked and must be replaced in order for the appliance to heat As with all AUTOFRY models the fan circuit is programmed to start when the ON button at the keypad is pushed and shuts off when oil temperature falls to below 150 F Additionally if the thermocouple is not connected to the circuit board the fan will run continuously AUTOFRY Models FFG 10 and MTI 10 Key Pad Circuit Key Pad Circuit Over View OREADY OWAIT OSTAND BY um CABLE am 5 4 7 8 9 fe CIRCUIT BOARD Figure 1 Key Pad Circuit The keypad circuit is comprised of 3 parts 1 The key pad part no
4. Page dU REV 0003 8 99 o f167654 18 GA proce al A NC 18 GA RED TIMA 14V de 24 v de Max Claus 2 6000c 1 mA VZY c Clase 2c 5 Man Doce po ae PN 10051 52 Fate Cover o 9 DISPLAY BOARD 41 gt E men Me SS 54 Cromo Fite hart e 55 Slack Comm i a mn e 6 Float Swich 9 y E 3 P4 57 Heater 1 Fat Sion Y 3 lt 2 2 8 El BA 240V ac NO t000c BA 240V ac NO 100 000 24V ac ct 80 60 Hz Class 2 140V ac 0 40H2 450 EG F See Detail A of mre tina 9 i E Er e Fue syne Pasare Sen 9 E STO Aw Fow SI i d 9 b m 18 GA Bock ret ota QU PRET 2205 ds Oe PN 3007 BA 240V ae NO C0006 AV ac et 80A0H1 Clasa 2 V BA 240V ac NO 100 000c IBA 12V de Clans 2 4000c Ap 240V ac EOMOHz See Detail A 12 QA Red Li AIL Basket Motor 2 4 22 GA Rec REESE d 4 22 GA RICCA Motion Technology Inc 6 Huron Drive Natick MA 01760 Model MTI 40 Electrical Schematic 240 ACV 3 Phase 7 Page 1 1 REV 0003 8 99 167654 ELECTRIC FRYER MODEL MTI 5 AUTOMATED FOOD ELIVER FIRE SUPPRESSION SYSTEM Pe E FEATURES Integral Ventless Hood Fully Enclos
5. 5 Exclusion of Incidental or Consequential Damage Repair or replacement under this Warranty is the purchasers sole and exclusive remedy Neither MTI nor the dealer from whom you are purchasing this equipment will be responsible for any and all incidental or consequential damages resulting from the use of the equipment or from breach of any express or implied warranty on this equipment These warranties are in lieu of all other warranties express or implied including but not limited to the implied warranties of merchantability or fitness for a particular purpose 6 Legal Rights of Warranty Retain mis Warranty It gives the purchaser specific legal rights The purchaser may also have other rights which vary from state to state MTI suggests that the dealer s dated bill of sale be ratained as evidence of the date of purchase Some states do not allow the exclusion or limitation of incidental or consequential damages or allow limitations on how long an implied Warranty lasts so the above limitations or exclusions may not apply to all purchasers Technical Service Support 888 664 6640 5 Amp Class CC 208 240 ACV Power Supply o 3 e o Sv o 12 14 GA Black or Brown Fan K1 Power contactor 1 12 14 GA Brown 1244 GA While or Blue 12 14 GA Green Yellow 0 18 GA 3 0 Amp Slow Blow Max Yellow 15
6. J10 H6 Rear View A AUTOFRY Model MTI 5 Basket Motor Assy Clockwise Rotation to DUMP Front View Troubleshooting and diagnostics Helpful Hints Rule out all operator error before dispatching service for example Customer claims that food entered does not dump out of the AUTOFRY Did they enter food before the ready light was on The basket will not dump until oil temperature is at 340 F Did they enter food when the basket was in the second drain cycle Was the basket installed If either of these is the case then the food is now in the bottom of the oil pot A continued build up of food in the oil pot will Cause the food basket to Jump out of the basket rod receiver clip Cause excessive order and or smoke And may cause the limit to trip When testing replacing or troubleshooting the basket motor always remove the food basket If the motor counter rotates it will cause damage to the basket motor fuses or circuit board It is strongly recommended that a thermocouple simulator be used to save time on the job waiting for the oil to heat Basket motor rotates but basket does not lift Loose basket cam Tighten as needed Stripped gears Replace basket motor assembly Check that basket shaft has not jammed into basket rod receiver clip Replace basket motor assembly Display at keypad reads A04 and Basket motor does not rotate Press OFF to clear display and silence beeping Check all wiring to motor R
7. 18 GA Red Circuit Board 1 PN 10079 With RTD 1234567 4 lo 799 18 GA WT wW RD Circuit Board 2 PN 10079 With RTD 1234567 ho oe a Og Ma 18 GA WT w BK 18 GA WT wi RD 818GAWT w BK NOTE POLARITY AT MOTORS NO MTI 40 BASKET MOTORS For MTI 40 Serial Numbers 1110 40 and lower use the following motor assembly Part numbers all parts are viewed from the front of the AUTOFRY RIGHT SIDE 40042 LEFTSIDE 10042 same as MTI 10 For MTI 40 Serial Numbers 1111 40 and up use the following basket motor assembly Part numbers all parts are as viewed from the front of the AUTOFRY RIGHT SIDE 40042R LEFT SIDE 40042L AUTOFRY Model MTI 40 Basket Motor Circuit IMPORTANT Motors cannot be interchanges from right to left IMPORTANT Note the serial numbers prior to installing any motors Always make a visual comparison prior to installing any motor assemblies The AUTOFRY Model MTI 40 basket motor circuit for serial numbers 1110 40 and LOWER have switch wiring as shown in the diagrams below f Serial Numbers up to 1110 40 WIRD DN no A WTRD EN we de ne bwr E us a wo if Ver m ip NO E M i 5 Eee E e Counter clockwise rotation to dump f Clockwise Rotation to DUMP E S enn Bie alee Left Side Basket Motor Assy P N 10042 Right Side Bas
8. NO switch common connection black part no 18 10 NO switch normally open connection red part no 17 10 Circuit board part no 10079 or 10079K AUTOFRY Models FFG 10 and MTI 10 Basket Motor Circuit The motor assembly is secured to the motor mount within the electrical chamber with 2 ea 1 4 20 x 5 8 bolts and lock washers The motor shaft is fitted with a Teflon seal The shaft then protrudes through a clearance hole into the cook chamber where the basket cam is then attached to the shaft and held secure with a 1 4 28 x 5 8 bolt and a small drop of medium thread locker Details on removal and testing the basket motor are covered in these instructions AUTOFRY Models FFG 10 and MTI 10 Basket Motor Circuit The basket motor functions to lift and lower the wire food basket through it s Cycle This cycle consists of 7 positions 1 Ready 2 Cook 3 Drain 4 Dispense 5 Shake 6 2nd Dispense 7 Return to ready These positions are controlled by the switch cam micro switches and through programs set in the EPROM of the microprocessor At the start of a cycle the motor will rotate counter clockwise from the ready position to the cook position This is a timed rotation set in program 14 At the completion of the cook cycle the basket motor will rotate clockwise to the Drain position This is a timed rotation set in program 10 The drain time is set at 12 seconds in program 11 At the completion of the drain time th
9. Press START Display will read 001 To enter user programming Pressthe OFF Key Press 2 0 Keys Display reads P Press2 22 Display will read 001 Mn Part 10079K Controler MT1 10 Values Program Description 1 0 05 15 59 Cook Time 1 2 0 05 15 60 Cook Time 2 3 0 05 15 61 Cook Time 3 4 0 05 15 62 Cook Time 4 5 0 05 15 63 Cook Time 5 6 6 00 0 05 15 64 Cook Time 6 7 100 375 Ready Temp 8 1 250 Stand by Temp 9 0 01 0 06 Hysterisis 10 1 999 Basket Cook to Drain Time 11 1 999 Basket Drain Time 12 1 250 Fan Off Temp 13 99 xX Heater Time Out to A05 14 1 999 Start Cook Basket time 15 1 999 Basket Drain to Dump Time 16 99 x Heater Time Out to A05 17 1 200 Motor time out to A04 18 000 0 999 Dead Beat Lock Up Counter A06 19 1 999 Basket Dump to Drain Time 20 1 250 Ready Light Mn temp 21 1 250 Ready Light Max Temp 22 1 999 New Password User 23 5F CorF F or C Temperature Display To scroll through the programs press the 2 key to move UP or press the 3 key to move DOWN Press the 1 key to enter the program and display the current value Press the 2 key to raise the value or Press the 3 key to lower the value Press the 1 key to save the changes To exit programming press the OFF key AUTOFRY Models FFG 10 MTI 5 MTI 10 amp MTI 40 Programming MTI Part 10079K Controller MTI 40 Values Program Description 1 Cook Time 1 2 Cook Time 2 3 Cook Time 3 4 Coo
10. switch is made through the access panel at the left side of the AUTOFRY The other difference involves the removable top panel and fire damper assembly and it s safety switch The illustration shown at the left shows a top view AA M of the MTI 5 with the top CH panel removed Highlighted is the Assemblv je cows removable fire damper ad To the left of the damper is the safety switch The damper must be installed 2 in order for this switch to close and complete the safety circuit If the damper assembly should close the airflow Switch will open the safety circuit de energizing the heater circuit and displaying Sft on the keypad display NOTE Removal of the top panel also aids in working on other related components Adjusting the MPL air switch In order to adjust the air switch you need to PAS Unplug the AUTOFRY from the wall Turn the unit around to gain access to the rear panel Remove the rear access panel You will see the air switch the switch is black in color and round about the size of a hockey puck You will notice either a clear or gray air hose attached to it Remove the sealant fro the center of the air switch You must remove all of the sealant from the center of the switch so you do not strip out the adjusting screw Using a 1 8 Alien wrench turn the adjusting screw 2 complete turns to the left which is in a clockwise direction Install the rear cover P
11. 10064 K31 e For MTI 10 models the heater element wattage can be either 208 Volt 3750 Watt Part 10064 K31 or 240 Volt 3700 Watts Part 10064 K32 Check the Voltage rating on the equipment ID tag A 240 Volt 4800 Watt heater box assembly Part 10064 K4 is available however the electrical service must support the increased amperage Additionally the equipment plug and outlet may need to be changed to NEMA 6 30 The identification tag located on the back lower left hand corner of the unit just above the power cord will also need to be changed This ID tag will need to reflect the new specification changes Please supply the following information from the old ID tag to our service department prior to ordering the Up grade Model Number serial number Date of MFG The ID tag is secured with 4 1 8 stainless steel rivets Remove these rivets and secure the new ID plate Before beginning this Up grade be sure to disconnect the AUTOFRY from all power supplies At the front of the fryer 1 From the interior cook chamber of the MTI 10 or FFG 10 remove the existing heater box assembly 2 Cut the RTD plug from its cable The RTD plug is the smaller of the two plugs located within the cook chamber 3 Install the new heater box onto the oil pot 4 Remove the 4 screws securing the Key Pad frame 5 Disconnect the existing keypad from the ribbon cable 6 Connect the new ribbon cable to the new keypad 7 Snake the ribbon c
12. 8 amp 9 Shown Jumped To Basket Switc 450 Deg 208 240 Coil Manual Reset 1213 Cable le i A Cable A 208 240 ACV j MDR Contacts ds 3750 WATT JA Plug Line in E M A __ o i To Branch Circuit SS SS SS See Figure 1 Heater Circuit The Heater circuit is comprised of the following components 1 MDR Mercury Displacement Relay Power Contactor 2 High Limit Thermostat 3 Heater Element 208 or 240 ACV 3750 Watts or 240 Volt 4800 Watt or 208 Volt 4160 Watt Power is supplied to the heater element in the following way The Circuit Board receives oil temperature readings from the RTD Resistance Temperature Detector or the K Type thermocouple if the oil temperature is below 354 F the coil at the MDR will be energize and the contacts of the MDR will be closed to deliver line voltage to the heater element When oil temperature reaches 354 F the coil de energizes and the contacts will open AUTOFRY Models FFG 10 and MTI 10 Heater Circuit If the safety circuit is open the MDR coil will not energize The safeties MUST be closed in order for the coil to energize It is possible to by pass the safeties for the purpose of testing only In the upper right hand corner at the circuit board locate the two pin plug at positions 8 amp 9 for part No 10079 or position J3 for part No 10079K the plug nearest the rear of the AUTOFRY There is one red and one black wire connected to this plug there also may be
13. A08 OR 716 APPEARS ON KEYPAD A04 ON KEYPAD POWER FAILURE IN THE STORE AND THE AUTOFRY WILL NOT COME BACK ON PRODUCT DOES NOT COME OUT OF THE AUTOFRY AT THE END OF THE COOK TIME UNIT NOT PLUGGED IN MAIN CIRCUIT BREAKER TRIPPED BLOWN FUSES VENT BLOCKED AT TOP FILTERS NOT INSTALLED FRONT DOOR OPENT HIGH LIMIT TRIPPED NO SUPPLY VOLTAGE DID NOT HEAT UP IN 16 MIN AUTOFRY IN STANDBY AUTOFRY IN WAIT YELLOW THERMOCOUPLE PLUG IN NOT INSTALLED YELLOW THERMOCOUPLE PLUG IS INSTALLED BACKWARDS BASKET IS JAMMED AUTOFRY ENTERED STANDBY MODE KEYPAD WON T OPERATE BASKET NOT INSTALLED BASKET NOT INSTALLED CORRECTLY PRODUCT ENTERED BEFORE READY LIGHT WAS ON PLUG UNIT INTO OUTLET CHECK MAIN CIRCUIT BREAKER REPLACE FUSES CLEAR VENT CHECK ALL FILTERS CLOSE AND LOCK FRONT DOOR RESET HIGH LIMIT CHECK VOLTAGE AT WALL TURN UNIT OFF AND THEN ON PRESS CLEAR ON THE KEYPAD WAIT FOR THE READY LIGHT BEFORE ENTERING MORE PRODUCT UNPLUG AND RE PLUG INSTALL THERMOCOUPLE PLUG UNPLUG THERMOCOUPLE PLUG AND REINSTALL CORRECTLY REMOVE AND RE INSTALL BASKET UNPLUG AND RE PLUG POWER CORD PRESS CLEAR ON KEYPAD UNPLUG AND RE PLUG POWER CORD INSTALL BASKET REMOVE AND INSTALL BASKET WAIT FOR THE READY LIGHT TO COME ON BEFORE ENTERING PRODUCT IF PROBLEM STILL PERSISTS CALL FOR SERVICE AT 1 800 348 2976 THEN PRESS 112 OR 0 AND EXPLAIN THE PROBLEM TO THE OPERATOR THE SERVICE TECHNICIA
14. A08 is a temperature difference registered by the controller of 50 deg In 5 seconds Check oil level in oil vat Check all connections AUTOFRY Models FFG 10 and MTI 10 Fan Circuit Fan Circuit Overview 240 ACV Fan a ee Lj En 31 vooo foooos CEM E Jeu O a Circuit Board 23 E 2 Deg sz e o c 2 3 am 5 2 E o 8 1 zl E 1 H The fan circuit is comprised of the following components 1 The 240 AC Volt Fan part no 10089 2 The Circuit Board part no 10079 or 10079K 3 2 Wire Assemblies 18 Gage Blue part no 6 10 18 Gage Brown part no 7 10 The fan functions to continuously filter the air from the cook chamber through the filters and exhaust it out through the top of the AUTOFRY Trouble Shooting 1 Turn unit on fan runs for 10 12 seconds then shuts off or display reads Sft Safety related problem see safety circuit trouble shooting 2 Fans operated but at very low RPM Unit supply voltage too low Verify it is at least 200V AC Fan is blocked with oil or other materials remove stack cover and filters then clear fan Fan is starting to fail replace fan 3 Fan operated but there is no exhaust from top of unit Louvers in the stack cover have closed Remove stack cover and open louver Check fan airflow direction AUTOFRY Model
15. 10042 L S 40042 R S amp 10042 L S 40042R R S amp 40042L 1110 40 and Lower 1110 40 and Lower 1111 40 and Up 1111 40 and Up K Type Thermocouple NCC 10079K Removable Oil Filtration UL NSF CSA 2 Ball Valves 1111 40 Three Blowers 1111 40 Thru 1141 40 Single Blower 1142 40 Dual Vat 1111 40 Motor Number 40042R R S amp 40042L L S 1111 40 and Up AUTOFRY Models FFG 10 amp MTI 10 Safety Circuit w I E 2 x E amp o pe ul Xx a d o ir a ul wi z rl u fel gt gt e Jj ui m 8 8 3 3 S Ed 5 ul E 6 5 c amp t 9 E amp g E 2 amp LL u 7 lt lt o u N e 18 GA Black A c umo SU ON meu ig 18 GA Red E gt Ei pi a bogana LLL A O ES u Circuit Board 000 x ERE T Noir Figure 1 Safety Circuit Overview The safety circuit is comprised of 8 separate switches that are wired in series They terminate at the circuit board 10079 at terminal M4 positions 8 amp 9 and circuit board 10079K at J3 Should any of these switches open the MDR Mercury Displacement Relay coil will de energize and the display at the keypad will go blank or display Sft The exception to this is as follows If after the cook cycle has started one of the safeties opens the AUTOFRY will continue the cook cycle At the completion of the cook cycle the AUTOFRY will de energize the MDR coil and shut off The AUTOFRY cannot be re started until the open safety circui
16. 10051 and 10051K 2 The ribbon cable part no 10050 and 10050K 3 The circuit board part no 10079 10079K The keypad located at the front of the AUTOFRY is linked to the circuit board located in the rear of the AUTOFRY via a 24 or 36 ribbon cable This cable runs through a conduit tube that is visible at the interior of the cook chamber The keypad is the user interface to the functions of the fryer As such it is exposed to grease chemicals and constant abuse AUTOFRY Models FFG 10 and MTI 10 Key Pad Circuit Key Pad Functions ON Press the ON key to begin heating the oil OFF Press the OFF key to shut the AUTOFRY off COUNT Press the count key to view the number of completed cook cycles STAND BY Press the Stand by key to place the AUTOFRY in the Stand by mode Stand by LED llluminates For controller with RTD Press the Stand by key a second time to exit the stand by mode For controller with thermocouple press clear to exit stand by mode Stand by LED will go out START The start key will begin the cook cycle and count down WAIT LED will illuminate during the cook cycle and any time oil temperature falls below 300 340 Deg F CLEAR Press the clear key to clear or cancel any cook time or cook cycle READY LED Light The ready light will illuminate at 300 F for controller with RTD and at 340 for controller with thermocouple WAIT LED Light The Wait light will illuminate during heat up and during a
17. 171 18 340 644 182 29 360 680 19341 380 716 160 62 321 609 8 171 73 341 645 8 482 85 361 681 8 193 96 381 717 8 161 18 322 6116 172 29 342 647 6 183 41 362 6836 194 52 382 7196 161 73 323 6134 172 85 343 649 4 183 96 363 6854 195 08 383 7244 162 29 324 6152 17340 344 6512 184 52 364 687 2 195 63 384 723 2 162 84 325 617 173 96 345 653 185 07 365 689 196 19 385 725 163 40 326 6188 17451 346 6548 185 68 366 6908 196 74 386 726 8 163 95 327 6206 i 175 07 347 656 6 186 18 367 6926 197 30 387 7286 164 51 328 6224 17562 348 658 4 186 74 368 6944 197 86 388 730 4 165 07 329 6242 17618 349 660 2 187 30 369 6962 19841 389 7322 165 62 330 626 17674 350 662 487 85 370 698 198 97 390 734 166 18 331 6278 17729 351 6638 18841 371 699 8 199 52 391 7358 166 73 332 6296 177 85 352 6656 188 96 372 7016 200 08 392 737 6 167 29 333 6314 178 40 353 667 4 189 52 373 703 4 200 63 393 739 4 167 84 334 6332 17896 354 6692 19007 374 7052 20119 394 741 2 16840 335 4635 17952 355 671 490 63 375 707 20175 395 743 168 96 336 6368 180 07 356 672 8 191 19 376 7088 20230 396 744 8 169 51 337 6386 180 63 357 6746 191 74 377 7106 202 86 397 746 6 170 07 338 6404 181 18 358 676 4 192 30 378 7124 20341 398 748 4 170 62 339 0422 181 74
18. 185 365 96 15 205 401 107 27 225 437 74 48 166 3308 8559 186 3668 96 71 206 4028 107 82 226 438 8 75 03 167 3326 8615 187 368 6 9726 207 4046 108 38 227 4406 75 59 168 3344 86 70 188 370 4 97 82 208 406 4 108 93 228 442 4 76 14 169 336 2 8726 189 3722 98 37 209 408 2 10949 229 4442 76 70 170 338 8782 190 374 9893 210 410 11005 230 446 77 26 171 3398 8837 191 375 8 9949 21 4118 110 60 231 447 8 77 81 172 3416 88 93 192 3776 10004 212 4136 11146 232 449 6 78 37 173 3434 8948 193 3794 100 60 213 4154 11171 233 4514 78 92 174 3452 90 04 194 3812 101 15 214 417 2 11227 234 453 2 79 48 175 347 90 59 195 383 101 71 215 419 112 82 235 455 80 03 176 3488 91 15 196 3848 10226 216 420 8 113 38 236 456 8 80 59 177 3506 9171 197 3866 102 82 217 4226 113 94 237 458 6 81 15 178 3524 9226 198 388 4 103 38 218 4244 11449 238 460 4 N 199 3902 103 93 219 4262 115 05 To Convert To Co nvert To Convert To Convert C CorF F C CorF F C CorF F C CorF F 115 60 240 464 12672 260 500 137 83 280 536 148 95 300 572 116 16 241 465 8 12727 261 501 8 138 39 281 537 8 149 50 301 573 8 116 71 242 467 6 127 83 262 5036 138 94 282
19. 359 678 2 192 85 379 7142 20397 399 750 2 To Convert To Convert C CorF F C CorF F 204 52 400 752 215 64 420 788 205 08 401 753 8 216 20 421 789 8 205 64 402 755 6 216 75 422 791 6 206 19 403 757 4 217 31 423 793 4 206 75 404 759 2 217 86 424 795 2 207 30 405 761 218 42 425 797 207 86 406 762 8 218 97 426 798 8 208 441 407 764 6 219 53 427 8006 208 97 408 766 4 220 09 428 8024 209 53 409 7682 220 64 429 804 2 210 08 410 770 22120 430 806 210 64 411 7718 22175 431 807 8 412 432 809 6 413 414 415 416 417 418 419 Resistance values f rom 0 Deg C to 199 Deg C Deg C 0 00 1 00 2 00 3 00 4 00 5 00 5 00 7 00 8 00 9 00 O 100 007 100 39 100 78 0117 101 56 10195 10234 10273 103 2 103 51 10 103 90 10429 10468 105 07 10546 10585 106 24 106 63 107 02 07 41 20 10779 10818 10857 0896 109 35 109 74 eq 13 110 52 11091 uso 30 11167 11206 112 45 11284 323 113 62 17401 11440 11479 11518 40 115 541 11593 116 31 116 70 11708 117 47 iras 118 24 11862 11901 _50 11940 119 78 12016 420 54 120 92 12130 12168 12206 1224
20. AUTOFRY operates however it shuts off just after a cook cycle fan continues to run Loose connection to a safety switch Airflow switch out of adjustment The AUTOFRY shuts off by its self at no specific time fan continues to run Sft at display Loose connection to a safety switch Airflow switch out of adjustment The AUTOFRY was just cleaned and now it does not start up the fan does not operate or the display reads Sft Debris caught in fan blades air flow switch does not close Loose or no connection to main power AUTOFRY Models FFG 10 amp MTI 10 Safety Circuit Inspecting adjusting and testing the safety circuit Prior to accessing the rear chamber it is a good idea to test the physical operation of each of the plunger style switches to ensure that they are in good working order Front door Tis TON plunger 4 M ap e Filter cover eim x plate plunger BESAS ia D ge n 2 ND filter NE Y Mn gt Figure 2 Front view of plunger switches Ensure that all components are installed and are making a solid contact with there respective switches NOTE The fan must be operating in order to check the airflow switch Prior to removing the rear access cover do the following to start the fan Unplug the heater plug and the RTD plug or Thermocouple Plug from the bottom of the heater box Press the ON button at the keypad When the display shows 417 or Prb press the OFF key At t
21. Part 10 22 12 Ga Brown Heater Socket to High Limit Part 10 23 12 Ga Green Heater Socket to Ground Part 4410 21 12 Ga Brown High Limit to Element Element Ends Element Ends High Limit Heater Socket RTD Socket Heater Socket Thermocouple Socket Heater Box with RTD Heater Box with Thermocouple Figure 3 Heater Box Interior View AUTOFRY Models FFG 10 and MTI 10 Heater Circuit Note that the RTD leads Red and White are placed as far from any voltage carrying wires as possible Also note that the high limit capillary tube must be arranged so as not to make contact with the heater element stud A small kink should be made in the capillary tube so that if it is pulled from the front of the heater box it will not inadvertently make contact with the heater stud The heater elements are case specific Check the Equipment Identification tag to match voltage wattage and amperage Trouble Shooting A05 or a no heat condition 1 Re set the high limit thermostat The re set is located at the bottom of the heater box assembly small red button It is sometimes difficult to access with your fingers if so the eraser end of a pencil is helpful When re set there will be a slight Click the button will not stay in the up position Note The limit needs to cool to 50 F below its preset before it can be re set Replace the limit switch if it continues to trip 2 Allow the oil temperature to recover During busy period
22. Platform and Plugs The heater box assembly mounts in the AUTOFRY ona platform that has the fixed mounted heater supply plug and the thermocouple plug Access to the wiring for this platform can be made by removing the small access panel at the left side FN ES vss e of the AUTOFRY and from the rear of the AUTOFR by removing the rear access panel ia y The heater plug and cord assembly is ES Right Side View With Access Panel Removed secured into place i with a clamp that is Thermocouple Plug Clamp Mounting screwed th rough the Screw Plug Clamp Screw BI Platform It is e DRE Fu A 7 TT py Te possible for this clamp to loosen and mer i T WM the resulting in poor f N sim contact or no contact E uv WE E between the plug Cord E a and the socket on NC See the bottom of the A LUST heater box assembly ARAS resulting in a no heat or sporadic heating condition S n 7 AUTOFRY Model MTI 5 Heater Circuit Addendum to the TSM Heater Box Assembly The matting sockets are on the bottom side of the heater box assembly The illustration to the left shows the sockets and probes The high limit reset button is located in the center of the box The heater box is aligned and secured into position by placing the key hole slots ets agi on the upper flange over the two mounting buttons located on the side wall above the
23. a heat gun gradually heat the probe end Apply the heat to simulate the gradual heating of the cooking oil If the probe is heated too quickly or if the heat application is too high the probe may open AUTOFRY Models FFG 10 and MTI 10 RTD Circuit An accumulation of oil at the RTD socket could simulate an open probe In this case loosen and remove the two screws securing the RTD socket to the heater box Remove the socket to expose the two probe leads Test the probe at the two leads If the probe registers an ohms reading while being heated then the RTD socket was most likely the problem and should be cleaned or replaced Similarly an accumulation of oil at the RTD plug attached to the RTD cable can result in a poor reading between the RTD probe and the circuit board Inspect the exterior and interior of the RTD plug to ensure the contact wires and connectors are clean and free from grease 27 Probe Fitting MM E E IN ye Liquid Seal Nut A Ty Rai NE at Probe Leads F4 Ene Ar ig No Connection Inspect Connection Six E Gio iM RTD IEC Socket To install a new RTD probe 1 Loosen and remove the two screws holding the heater box together Remove the cover from the heater box assembly The cover is secured to the housing with a silicone sealant you will need to pry the cover off of the housing 2 Restrain the RTD fitting at the front of the heater box using an adjustable wrench loosen and remove the
24. cook cycle STAND BY LED Light The Stand by light illuminates during the stand by mode NOTE If power is interrupted while the AUTOFRY is in the Stand by mode the Stand by function may remain active even though the Stand by light is not illuminated In this case simply press the Stand by key AUTOFRY Models FFG 10 and MTI 10 Key Pad Circuit Cook times for the controller with a thermocouple 10079K The maximum cook time is 15 min and 59 sec however the display is limited to three digits For cook times of 10 Min the display will read the letter A followed by the seconds For 11 Min the letter b the B is in lower case so that it is not confused with the number 8 For 12 Min the letter C For 13 Min the letter D For 14 Min the letter E For 15 Min the letter F The display will count down through these letters until time remaining is 3 digits or less Minutes are separated from seconds with a colon AUTOFRY Models FFG 10 and MTI 10 Key Pad Circuit Trouble shooting 1 No display Check cable connections Short in display 2 Ready Wait or Stand by LED does not work LED cracked or damaged Short in circuit 3 One row of keys does not work Short circuit Loose ribbon cable Worn switch membrane In all cases it is best if the entire key pad and ribbon cable be removed and replaced There is no need to spend any time trying to troubleshoot the interior workings of the keypad At the
25. erroneous temperature or an error code at the keypad display of Prb AO7orA08 AUTOFRY Model MTI 10 Thermocouple Circuit N A Heater Plug amp B Thermocouple Plug The thermocouple plug and its socket at the bottom of the heater box must be connected plus to plus and minus to minus Although the pins and sockets are two different sizes it is possible to force the connections together backwards Always check this connection The probe itself is connected with in the heater box assembly This is a simple two wire connection Ensure that the YELLOW lead is connected to the terminal of the socket and the RED lead is connected to the terminal If connected backward oil tempeture will read 761 or the display at the keypad will read A07 or Prb Interior View of Heater Box AUTOFRY Model MTI 10 Thermocouple Circuit Trouble Shooting A07 at keypad display A07 is a frequency conflict error Crossed wires at heater box Crossed wires at circuit board Prb at keypad display Prb is an error for an open probe Plug not installed at heater box Connections not made at circuit board Loose solder connection at TC1 terminal on circuit board Temperature reading of 761 at keypad display Plug not installed at heater box Short in thermocouple Short in thermocouple wiring Plug installed backwards at heater box Crossed wire at heater box Crossed wiring at circuit board A08 at keypad display
26. is oil in the oil pot tis not necessary to have the food basket installed at this time you are only testing the RTD NOTE If the wait light is blinking at the keypad there is a bad connection somewhere in the circuit You must locate the break in the circuit Re inspect all connections Close the main door of the AUTOFRY and press the ON button at the keypad The fan will start After 10 12 seconds oil temperature will be displayed at the keypad As the oil is heated the display will indicate the oil temperature this can sometimes be slightly erratic as the cool oil mixes with the heated oil At 190 F the basket motor will cycle After approximately 14 15 Min the display should reach 354 F and the heater will cycle off 12 Open the main door and install the food basket 13 Close the main door and press the ON button Runafew test cycles to ensure that the AUTOFRY is in good working order CONNECTIONS FOR THREE WIRE BOARD AND TWO W IRE RTD IEC socket 1 2 washers ci CIRCUIT BOARD RTD probe To upgrade from a three wire RTD to a Two wire RTD using the existing 4 relay circuit board 1 o NOTE Depending on the type of heater box assembly It may be necessary to use two 2 washers to fill the old RTD hole See diagram 1 a At the IEC socket in the heater box connect the red wire and jump to the LINE and NEUTRAL pins At the IEC socket in the heater box connect the WHITE wire
27. labeled wires from the basket motor assembly Compare the old motor to the new motor to ensure that they are the same At this time with the old motor assembly removed you may find that the problem with the motor is simply a defective or grease laden switch As long as the motor gears are in good shape then simply replace or clean the switch Reinstall the New or Repaired Basket Motor Assembly Connect the switch wires that were labeled prior to removal of the old or re built motor consult the wiring diagram Ensure that the motor shaft bushing is installed Slide the motor shaft all the way through the hole in the chamber wall Securely fasten the motor assembly to the motor mount with the 7 16 bolts and lock washers Place a few drops of medium strength lock tite or thread locker onto the basket cam set bolt Slide the basket cam over the motor shaft and check the fit of the food basket Tighten the basket cam onto the motor shaft Make the final two wire connections to the motor plus and minus terminals Ensure That Bushing is in Place Use Medium Strength Lock tite on Bolt 4 raat Testing the Motor Installation DO NOT INSTALL THE BASKET UNTILL AFTER TESTING THE MOTOR ROTATION If the motor rotates in the wrong direction with the basket installed it can cause gear damage and or blown fuses Basket Switch Wires o4 SEUL HE LEE Cura in efie Ege des Xi lt Safety Circuit Bis
28. the keypad will be A05 AUTOFRY Model MTI 40 Phase Conversion Instructions MTI 40 Three Phase to Single Phase Conversion Parts Required Single Phase Power Contactors I D Plate with Serial Number Electrical service will need to be changed The single phase requirements are 240 V ac Dedicated Grounded Circuit 50 Amps with 2 6kW elements 67 Amps with 2 8 kW elements Instructions Disconnect the AUTOFRY from Main Power Remove the rear access panel Disconnect the heater leads from the bottom terminals of the power contactors Disconnect the coil leads from the power contactors Disconnect the power supply leads from the top terminals of the power contactors Remove the three phase power contactors Remove the RED leads from the main terminal block Remove the NEMA 15 50 Plug Cap from the main power cord Cut back the RED wire from the supply cord so that it will not be accidentally connected or 10 Install a new three wire supply cord for hard wire hook up Ip pe oo En ge Da NE cx Ses Three Phase mE Contactor S Coil Leads 1 uj Powerin Bala RED Wire AUTOFRY Model MTI 40 Phase Conversion Instructions Figure 1 Three Phase Contactor Preparation for Single Phase conversion Separate the element led wires With a meter locate and mark the resistor leads as shown in Figure 2 below Each heater has three elements resistors there are six wires total for each heater Figure 2 shows the wiring diag
29. to the NEUTRAL pin Ensure that all the connections are clean Open and clean the RTD plug When replacing a three wire circuit board with a two wire board you need to jump the black amp white leads to one of the connections of the two pin connector M3 and the green wire goes to the other connector M3 CIRCUIT BOARD RECOMMENDED HOOK UP 3 WIRE BOARD TO 2 WIRE RTD AUTOFRY 3 wire to 2 wire RTD O ee 3 E pue 9 Seo E as E i x eo While Ss RES a leat Black aa Green 3 wire RTD Probe HI emm em Use only two of the connections at the socket and plug y Plug and Socket 2 wire RTD Probe Jump at Board DN as shown C AUTOFRY Model MTI 10 Thermocouple Circuit Thermocouple Circuit System Overview Le YELLOW TC4 RED 24 V ac MAX 0 Q e K Type Thermocouple The K type thermocouple is the junction formed by joining two dissimilar metals Proper alloy selection results in a measurable and predictable voltage generated at that junction This voltage when detected by the circuit board will indicate actual oil temperature The circuit board regulates the electrical supply to the heater elements to maintain the oil temperature The YELLOW wire is positive the RED wire is negative Crossing these two wires will result in
30. trouble shoot a bad resistor begin by verifying amperage draw 1 With 6000 watt elements 12000 watts total at 240 Vac Single phase the amperage draw should be 50 00 2 With 6000 watt elements 12000 watts total at 240 Vac Three phase the amperage draw should total 28 90 3 With 8000 watt elements 16000 watts total at 240 Vac Single phase the amperage draw should total 66 66 4 With 8000 watt elements 16000 watts total at 240 Vac Three phase the amperage draw should total 38 53 Using a test meter check across each of the element resistor leads to locate any dead resistor then replace the elements if necessary Replacement of the entire pivot bracket assembly is suggested for models equipped with that part The automatic re set limit thermostats will trip at 450 F and re set after cooling 50 F Coil voltage at the power contactor will be de energized if the limit has tripped Nuisance trips can be caused by a limit that is in too close contact with the element sheaths If this is the case simply move the capillary tube off the element however NEVER remove the limits from the circuit Excessive build up Any open safety will de energize the heater coils at the power contactors This should not be confused with an open high limit or a failed heater An open safety will be displayed at the keypad as Sft Were as if the AUTOFRY does not reach its ready temperature with in 16 minutes and 49 seconds the display at
31. 0 v 105 C Date 9 20 96 i 120 ACV 1725 Watt All amp 22 Gage Wire Stranded TEW 600 V 105 C 1 Alls 12 Gage Wire Stranded THMN 600 V 105 C Air 16 Gage Wire Stranded THHN 600 V 105 C Page 10f2 OLD STYLE us mais DETAIL A LT am er a i u pnm Common com CES L SVS BR S 6 o O O LED 2 LED 1 o of lt RY O ee l a oll Sw 2 SW 1 9 0 o o b TT Lo S LED 4 ee k y SW 4 SW 3 lt gt o o A SR 6 LED 5 LY O NS SW 6 SW 5 S E NS Rear View of Key Pad gt E NA Autofry Model MTI 5 Wiring Diagram Motion Technology Inc 6 Huron Drive Natick MA 01760 Ali amp 13 Gage Wire Minos TEW 600 v 105 C Ali 22 wi osc Data 9 20 96 pir one Wire et NV c P 2 of 2 All 8 16 Gage Wire St IN 609 V 105C a up STYLE
32. 1 1 Pee MA A 6 30 208 amp 6 20 240 RTD RTD RR Vat 4160 Wat Special Order Ri ee ee 4936 A Last 4890 10 7197 10 ES 8010S Watlow RTD Probes IS AUSTIN ass Crass SO REV 002 1 00 Motion Technology Inc AFI 50MTI 5 Rev 002 1 00 Model Name AFI 5 MTI 5 MTI 5 Far East Export Modified Voltage Wattage Amperage Hz Plug Configuration Changes Removedememal On Swe OOOO er Motion Technology Inc MTI 40 MTI 40E Rev 002 1 00 Model Name MTI 401PH MTI 40 3PH MTI 40E 1PH MTI 40E 3PH Voltage 240 Volt 240 Volt Wattage 16000 Amperage 50 zs 6667 38 54 Hz 50 60 Phase a a E 3 Plug Configuration NEMA 15 50 Serial Numbers Thermistor Style Serial Numbers Thermistor Style Controler Style Serial Numbers Controler Style Serial Numbers Note Listings Changes Changes Changes Changes Changes Serial Number Range Serial Number Range Serial Number Range Serial Number Range Serial Number Range 1066 40 through 1110 40 1066 40 through 111040 K Type Thermocouple K Type Thermocouple __ 1000 40 through 065 40 1000 40 through 1065 40 _ NCC I079K NCC 10070 33 1066 40 through 1110 40 1066 40 through 1110 40 _ Ooo 2 Ba Vanves O o fffiM0 po Three Blowers OU 1199 40 Thr 1141 40 po Single Blower o fM240 Eoo DudVat pt 40042 R S amp
33. 26 4 53 36 128 2624 6447 148 298 4 3168 89 1922 42 80 109 2282 53 91 129 2642 65 03 149 300 2 32 24 90 194 4335 110 230 5447 130 266 65 58 150 302 32 80 91 1958 43 81 111 2358 55 03 131 267 8 66 14 151 303 8 33 35 92 197 6 4447 112 2336 55 58 132 2696 66 70 152 305 6 33 91 93 199 4 4502 113 235 4 112 589 13995 2744 67 25 153 3074 3446 94 2012 4558 114 2372 5660 134 2732 67 81 154 309 2 35 02 95 203 46 13 115 239 57 25 135 275 6836 155 2311 35 57 96 204 8 46 69 116 240 8 57 80 136 2768 68 92 156 3128 36 13 97 206 6 47 24 147 242 6 5836 137 278 6 69 48 157 314 6 36 69 98 2084 47 80 118 2444 58 92 138 280 4 70 03 158 316 4 37 24 99 210 2 48 36 119 246 2 5947 139 2822 70 59 159 3182 To Convert To Convert To Convert ME To Convert CorF F C CorF F C CorF F C Corr F 71 14 160 320 8226 180 356 93 37 200 392 10449 220 428 7170 161 3218 8281 181 3578 9393 201 393 8 10504 221 4298 72 25 162 3236 8337 182 359 6 9448 202 395 6 105 60 222 431 6 72 81 163 3254 8392 183 3614 95 04 203 3974 10616 223 433 4 73 37 164 3272 8448 184 363 2 95 60 204 3992 10671 224 4352 73 92 165 329 8504
34. 4 890 28 118 4 20 01 68 154 4 2 78 9 482 1 66 29 842 945 4g 120 2 2057 69 1562 2 22 10 50 i 144 30 86 1001 55 122 2142 70 158 1 67 11 918 055 3 grzg 1056 51 123 8 2168 71 1598 11 11 12 53 6 004 32 896 11 12 52 1256 2224 72 161 6 0 55 13 55 4 056 33 914 1168 53 1274 2279 73 634 10 00 14 572 142 34 932 TT 54 1202 2335 74 165 2 9 44 15 59 1 67 35 95 1239 7 55 131 23 90 75 167 8 89 16 608 223 36 968 13 34 56 1328 94 46 76 168 8 8 33 17 626 278 37 986 1390 57 1346 7 2801 77 170 6 7 78 18 644 334 38 1004 1446 858 1364 2557 78 172 4 7 22 19 662 3 90 39 1022 15 01 59 138 2 26 13 79 1742 To Convert To Convert i To Convert To Convert C CorF F C GP F C CorF F C CorF F 26 68 80 176 3780 06 242 1 4891 120 248 60 03 140 284 27 24 81 177 8 38 35 01 2138 4947 121 249 8 60 58 141 285 8 2779 82 1796 38 91 102 2156 50 02 122 251 6 61 14 142 287 6 28 35 83 181 4 39 46 103 217 4 50 58 123 253 4 61 69 143 289 4 28 90 84 1832 40 02 104 2192 5114 124 255 2 62 25 144 291 2 29 46 85 185 40 58 105 221 51 69 125 257 6281 145 293 30 02 86 1868 41 13 106 222 8 52 25 126 258 8 63 36 146 294 8 30 57 87 188 6 41 69 107 224 6 52 80 127 2606 63 92 147 2066 31 13 88 1904 4224 108 2
35. 4 12285 G0 12324 12862 13401 12439 124 781 12516 a 35 125 93 126 32 12570 TO 127 07 127 45 12794 2822 128 67 12899 1293 30 129 76 130187 1305 80 30 89 13127 13166 3204 7713243 132 81 13320 133 58 13397 13435 90 3470 135 08 135 46 135 84 136 22 136 50 736 98 137 36 137 74 13819 100 138 631 738 881 739 56 19930 19087 14019 40 ER 110 14220 14266 143 04 14341 143 79 14418 14454 7 144 91 14529 14566 120 146 06 146 44 oc e 4719 147 56 14794 14831 148 69 14906 14944 130 149 82 15020 15057 18095 151 327 15170 52 07 152 45 15282 153 20 140 193 58 153 951 15437 194 60 155 06 15543 155 80 15617 15654 156 91 NE ON Brag yee 69 15806 58 44 158 84 99 19 TDS SG 15994 160 31 160 69 1607 Ea 16142 161 79 16247 162 541 16292 163 29 163 67 164 04 164 42 170 164 76 165 13 168 89 165 87 16624 16661 166 98 167 35 16772 168 09 180 168 46 468 83 16020 69 57 169 941 170 31 170 68 17105 171 42 17179 190 172 18 17253 17500 7327 173 64 17407 174 38 174 75 17812 175 49 Kilowatt hours to Heat Oil Amount of Oil Temperature Rise Deg F 102 127 151 176 201 226 252 276 302 326 350 375 Read across in table from nearest amount in gallons of liquids to desired temperature rise column and note kilowatts to heat in one hour Includes a 20 safety factor to compensate for high heat losses and or low power voltage MTI 10 1 Phase NEMA 6 30 Plug Con
36. 50 Man Reset Thermal Cut Out I 1 K Type Thermocouple D 1 i 2 3 i le I Yellow Motlon Technology Inc 6 huron Drive Natick MA 01760 508 653 0082 ANE OA Be tes sao AT ale Aaa cana 33e 349 de 24 de Max Cinan 2 60006 Te PT RE HEN 138A 02V de Claas 26 51 Moin Dore G o No Cou BA 240V at NO 50000 EA 240V ae NO 10 0006 240Y ac SOROH 8 hector 2 Tr wach See Detail A da Y eel 1 eal l d 3 Grace Bono i i E i TT seb ri 54 Crorcodi Fier LIH REO i H i S Slack Cover i 1 a an p j AN Ci qf aret L S7 Heote F1 Un ganch e o x nares a reman me E i 9 o t I eos e rr o H Jemen ea CA Bock Q site em mue QU ee 13 mA 12V dc Class 2c i EE 2 si Res 1 d li i 5 ST ak ay de G4 v 36 Muz Coase 2 8000 PN ICOJOK Ta mo w f e mies odere ig flee l LEA 42V de Chasa 74V ac et BONO See Detail A osvetee 422 Gated xm purum i M 22 SoA White cs i 222 GA Rec DEEE Y 22 A Bock yes v tr Moticn Technology Inc 6 Huron Drive Natick MA 01760 Model MTI 40 Electical Schematic 240 ACV Single Phase
37. 539 6 150 06 302 575 6 _ 117 27 243 469 4 128 39 263 505 4 139 50 283 541 4 150 62 303 577 4 117 83 244 4712 128 94 264 507 2 140 06 284 5432 151 17 304 579 2 118 38 245 473 129 50 265 509 140 61 285 545 151 73 305 581 118 94 246 474 8 13005 266 510 8 141 17 286 5468 152 28 306 582 8 119 49 247 4766 13061 267 5126 14172 287 548 6 152 84 307 584 6 120 05 248 4784 131 16 268 5144 14228 288 5504 153 39 308 586 4 120 60 249 480 2 13172 269 516 2 142 84 289 5522 153 95 309 588 2 121 16 250 482 132 28 270 518 143 39 290 554 154 51 310 590 121 72 251 4838 13283 271 519 8 143 95 291 555 8 155 06 311 591 8 122 27 252 4856 13339 272 5216 144 50 292 557 6 155 62 312 593 6 122 83 253 4874 133 94 273 523 4 145 06 293 559 4 156 17 313 595 4 123 38 254 489 2 134 50 274 525 2 145 61 294 561 2 156 73 314 597 2 12394 255 491 13505 275 527 14617 295 563 157 28 315 OOo 599 124 50 256 4928 135 61 276 528 8 146 73 296 564 8 157 84 316 600 8 125 05 257 4946 136 17 277 5306 147 28 297 566 6 158 40 317 602 6 125 61 258 4964 136 72 278 5324 147 84 298 568 4 158 95 318 604 4 126 16 259 4982 137 28 279 5342 148 39 299 570 2 159 51 319 606 2 To Convert To Convert To Convert To Convert C CorF F C CorF F CoF FP C Corf Fo 160 06 320 608
38. AUTOFRY Model MTI 5 Heater Circuit Overview The MTI 5 heater circuit operated in the same manner as the MTI 10 and MTI 40 models to heat the oil The only substantial differences are Element Wattages Heater Box Mounting Heater Box Configuration NOTE There is a Main ON OFF switch on the right side of the Model MTI 5 Ensure this switch is in the marked ON position MTI 5 Heater Circuit Wiring Diagram Main power through the ON OFF switch is connected to the MDR or Power Contactor The thermocouple circuit controlled at the circuit board reads oil temperature and will To Transformer Branch Circus Y 10Vac 6060 Hz Used Only with K Type 5 A 240 V ac No 100 000 c Basket Motor Switches amp Jumper SCIE 1 5 Cim Safety Circuit Circuit Board Part 10079K Thermocoupte 2A V ac ct 00 He Class 1 Fl 15 A 12 V de Class 2 40000 24 V ac Max Class 2 ecco ee eee ee Motion Technology Inc 4 heres Drive Matick MA 01700 j91 431 0041 energize the contactor coil to close the contacts and supply line voltage to the heater The Set point is 352 F MAX There for any time oil temperature is below 354 The contacts and coil will be energized to supply the heater The safety circuit and thermocouple circuit must be closed in order for this circuit to operate must also be closed for this circuit to operate AUTOFRY Model MTI 5 Heater Circuit Addendum to the TSM Heater
39. E TERMINAL WHITE WIRE X BASKET MOTOR l mE WHITE WIRE WITH RED STRIPE Figure 3 Basket Motor Wiring Change Removing the RTD cables and installing the Thermocouple Wires 1 Loosen all the cable clamps used to secure the RTD wires and cable to the old control board 2 Remove all the RTD cables by pulling them through the back of the AUTOFRY 3 Check the condition of the small rubber grommet used to protect this cable If the grommet is missing or if the condition is deteriorated replace it 4 From the front of the AUTOFRY route the new thermocouple cable assembly terminal ends first through the rubber grommet and then through to the control board Ensure there is enough slack in the cable so that it can be plugged easily into its socket at the bottom of the new heater box assembly 1 Connect the yellow thermocouple lead to the top terminal marked TC1 on the control board 2 Connect the red thermocouple lead to the bottom terminal marked TC1 on the control board If these connections are reversed the controller will display and erroneous oil temperature the error message Prb or A07 will appear at the keypad 3 Secure the wire leads to the cable clamps Insure that the cable assembly will not pull loose from the control board Loop the cable around the cable clamps to ensure they will not pull loose Test the controller Install the heater box onto the oil pot 2 Ensure
40. FY with RTD ONLY After 10 12 seconds there will be a display at the keypad AUTOFRY with a thermocouple the display will be instant The basket motor may rotate to its home or ready position then back ready 7 Forthe AUTOFRY equipped with a thermocouple you will need to install the heater plug and the thermocouple plug and allow the oil temperature to reach its ready temperature in order to test the basket motor 8 Enter a 10 second time at the keypad and press START You will want to carefully watch the basket cam to ensure it completes its 7 position cycle See figure 6 D D D e READY COOK DRAIN DISPENSE SHAKE 2ND DISPENSE READY Figure 6 Cam Rotations Once you have verified that the basket cycles are correct install the wire food basket The wire food basket should at the ready position be at a slight angle out of the oil as shown in figure 7 If the basket is too high product from the food entry chute will hit the side of the basket and not enter the basket If the basket rest too low it may drive down into the heater coils and damage the circuit Ensure the basket rests as shown in figure 7 The height from the floor of the cook chamber to the top right hand edge of the basket should be approximately 11 11 5 see figure 7 11 11 5 From floor to top edge of basket Figure 7 Basket Set a Correct Height AUTOFRY Models FFG 10 and MTI 10 Basket Motor Circuit To adjust the height of t
41. GA Blue 1 12 2 11 Primary 1d n 5 L 18GA Brown 7 Safety Circuit Air Flow Fire System Tnt Doer E y S6 S7 un o s GA TE ME 38 G Red uc CN TTE RAT d ee ED PEN PRE el a GS EE 1 1 1 Display Board Ribbon Cable Eee 4 1 i CN1 I i Circuit Board Part 10079 Used Only with RTD y t 3 M n 0 s O lololol 1 M2 lo o 2 e E zig lt ETT aim i 10 Li 3 i x 18 GA Blue sie I 42 14 GA Blue o i i F i H CT 18 GA Orange 18 GA Yellow 3 0 Amp Slow Blow Max b AUTOFRY MC L FFG 10 amp MTI 10 WITH RTD Wiring Diagram Motion Technology Inc UL File 4 E167654 Revised 6 24 98 ECM Basket Motor 12 VDC F 3 Opptional 1 Amp fuse added to line of M2 Circuit Board M2 pin 2 Connection to M2 Motor White wire w Black Stripe Heater Box Assy 1 450 Man Reset Thermal Cut Out E 208 240 AC 3750 Watts Motion Technology Inc 6 huron Drive Natick MA 01760 508 653 0082 05 Class CC 7 s Bisplay Board 51 Safety Circuit 43mA 14V de 24 V dc Max Class 2 6000c Airfiow Fire System 2 S3 S4 ge e gs o Frnt Door S7 Fitter Cover 36 8 Red Black Ribbon Cable E o o Black AUTOFRY MODEL MTI 10 WITH K TYPE THERMOCOUPLE Red 43 mA 12V de Class 2c soso ere
42. Jumper Loop YELLOW RED n Il Il ino Volage Line Voltage E 5 lo Basket M Oras TO Ipso ooupio Begin by jumping out the safety circuit at the circuit board connection J3 By removing the plug with the red and black wires and install the plug with the short yellow wire forming a loop see the diagram at the left This will allow you to test the motor with the door open This jumper MUST be removed after the testing is completed Install a thermocouple simulator onto the thermocouple socket at the heater box mounting deck Set the simulator for at least 340 F This will allow the basket motor to function Turn on main power and press the ON button at the keypad The basket motor should rotate from ready to dump the back to ready If it rotates backwards check the motor wiring polarity AUTOFRY Model MTI 40 Basket Motor Circuit Basket Motor Circuit Wiring Diagram for Serial Numbers 1111 40 and Lower SERIAL NUMBERS Circuit Board 1 1111 40 PN 10079K AND UP 1234567 oopggl ooop ine Circuit Board PN 10079K 18 GA WT w RD NO NC 38 GA WT wW BK cu M 18 GA WT wi BK 3 EL 18 GA WT WRD NOTE POLARITY AT MOTORS NO AUTOFRY Model MTI 40 Basket Motor Circuit Basket Motor Circuit Wiring Diagram for Serial Numbers 1110 40 and Higher SERIAL NUMBERS 1110 40 AND LOWER HABGA WIW RD
43. Motion Technology Inc 6 Huron Drive Natick MA 01760 Technical Service Manual Phone 508 653 0082 Fax 508 653 1736 MOTION TECHNOLOGY INC LIMITED WARRANTY 1 Nature of Warranty This equipment is warranted to be free of manufacturing defects in workmanship and materials for one 1 full year beginning from the date of original retail purchase and subject to the limitations set forth below The controls package consisting of the main circuit board and keypad are warranted for three 3 years Any part found to be defective during the warranty period will be replaced with new or rebuilt replacement parts free of charge by Motion Technology Inc MTI Shipping charges are me responsibility of the purchaser Service labor is included for a period of one 1 full year beginning from me date of original retail purchase when performed by an authorized MTI service company or designated agent based on straight time rates for work performed during normal working hours This labor coverage is limited to a fifty SO mile radius each way and or 1 hours travel time of a customers location Any and all other service travel charges will be the responsibility of the customer 2 Scope of the Warranty This Warranty is extended to the original purchaser for products purchased and retained in the 50 states of me U S A and the District of Columbia This Warranty shall not be effective unless the equipment was purchased from a dealer or oth
44. N WILL ALWAYS ATTEMPT TO CORRECT THE PROBLEM OVER THE TELEPHONE IF THIS IS NOT POSSIBLE A SERVICE COMPANY IN YOUR AREA WILL BE CONTACTED AND DISPATCHED TO YOUR LOCATION FOR EMERGENCY SERVICE AFTER HOURS OR ON WEEKENDS ONLY CALL 1 888 664 6640 ANY UNAUTHORIZED SERVICE ON THE AUTOFRY MAY VOID THE WARRANTY Error Codes AUTOFRY Models FFG 10 MTI 5 MTI 10 MTI 40 Error Codes EPROM 10F 10C 12R3 NCC Fault Condition Troubleshoot To clear display and re set Check plugs amp sockets Check arobe 417 213 A02 Prb Open or shorted RI Dor Check condition of all cords and Un plug from supply or press OFF Thermocouple Probe connections see also A07 Blank Blank Check all safeties check fan Display w Display w A03 Sft Open Safety operation check fire system gauge Press OFF Fan On Fan On check filter installations Check adjust air flow switch Basket motor noti dositi n Check for broken gears check all wire A04 A04 A04 A04 p connections check switches check Un plug from supply or press OFF after 10 seconds switch cam tightness _ Check supply voltage check supply A05 A05 A05 A05 Bester taiur toreach Set poini breaker check limit re set check Un plug from supply or press OFF in 16 Min 49 Seconds voltage at heater plug N A N A N A A06 Dead beat counter alarm Check outstanding customer balance Press OFF Re set program 018 Check yellow thermocouple plug installation Check cord condition Frequency Conflic
45. ONLY Test the voltage at these terminals if there is no voltage tap the relays at K4 and K3 these relays may be stuck If this does not work replace the circuit board and re test For Circuit Board utilizing the K Type Thermocouple there are no on board fuses The fan terminals will be marked as J9 The fan control relays are marked as K1 and K2 clear cover relays NOTE The exhaust fan will run continuously if the RTD or Thermocouple plug located in the cook chamber is not connected to the heater box putem MIA CM D 7 na t SE dem na Figure 5 Circuit Boar 10079K AUTOFRY Model MTI 40 Fan Circuit For MTI 40 models with serial numbers of 1110 40 and lower the fan circuit will consist of one 240 V ac exhaust blower located at the top of the fryer filter chamber after the last filter and below the fire damper assembly To access this blower remove the fire damper cover There may also be two small 240 V ac cooling fans located in the rear electrical section These fans function to cool the electronic controls All fans are wired in series into the last two terminals at M4 or J9 located at the bottom left corner of the circuit boards fea VE UTE etr dri i ut A Vent Blowers L Shown as 3 Blower model PA A 7 ONO E nt MT ace EE cee 8 i Vent Blower 8 i Shown as Single blower model Ne o Ed i sel H 5 f 3
46. a second plug with an orange or yellow wire loop jumper hanging loose at this position Remove the plug and insert the jumper in its place If there is no jumper simple remove the red and black wire and form a loop with any conductible wire then re insert the plug into the socket See figure 2 Location of RTD or MN Thermocouple ns JU sn Figure 2 Safety Circuit Jumped If the RTD or Thermocouple circuit is shorted or open 417 or Prb Error Code the MDR coil will not energize This circuit is critical to the operations of the AUTOFRY and must be intact at all times If the coil of the MDR remains energized for 16 min and 49 sec the circuit board will de energize the coil of the MDR and an error of A05 will be displayed at the keypad AUTOFRY Models FFG 10 and MTI 10 Heater Circuit Figure 3 shows the interior view of a typical heater box assembly There are 6 components within the heater box assembly they are 1 The Heater Element Part 10059 A is 240 Volt 3750 Watt Part 10059 is 208 Volt 3750 Watt Part 10059 D is 240 Volt 4800 Watt Part 10059 E is 208 Volt 4160 Watt 2 The Probe RTD Part 10065 Thermocouple Part 10K Couple 3 The High Limit Thermostat Part 10066 4 The Heater IEC Socket Part 10063 5 The Probe Socket RTD IEC Socket Part 10062 Thermocouple Socket Part SPJ K F 6 4 Wire Assemblies Part 10 24 12 Ga Blue Heater Socket to Element
47. able through the conduit tube 8 Loosely secure the keypad to the front of the fryer Remove the rear access panel from the fryer With the exception of the ribbon cable and the thermocouple extension wire this is a wire for wire up grade 1 Remove the old ribbon cable from the conduit tube and disconnect it from the MEC control board 2 Pull the new ribbon cable through the conduit tube 3 Mark all wires according to figure 1 prior to disconnection Starting at the upper left hand corner of the MEC Controller see Figure 1 A Mark the first set of black and red wires J2 B Mark the second set of black and red wires J3 C Atthe middle of the right side of the control board remove the blue and brown wires This entire RTD wire assembly from the control board to the heater box will be replaced with the thermocouple wire and plug assembly Part 10K Cable At the lower right hand corner of the control board mark the six pin plug J10 At the lower left hand comer of the control board there are six wires screwed into a white terminal block Marking from right to left 1 Mark the first blue and brown wires J9 2 Mark the middle blue and brown wires J8 3 Mark the last blue and brown wires J7 Disconnect all the wires and remove the MEC control board Only the wires at the white terminal block need to be un screwed The other 4 connections are removable plugs Remove the MEC control board from the standoffs Secur
48. ar as in Figure 6 Figur 5 10 The procedure is complete Put the Heater Element Box back into the AUTOFRY You are now ready to begin cooking AUTOFRY Models FFG 10 and MTI 10 Branch Circuit Branch Circuit Overview Reese A Circuit Board an EE EL T i iad LET N i 12 ACV Beets eae ind ji EMI Filt NY 12 GA Blue to heater er 18 GA Yellow C 27 MDR Contacts Hess PAS cT 230 ACV 18 GA Orange us ere p 12 GA Black Power Cord 12 GA Brown to heater id Branch Circuit Fuses 8 12 ACV 18 GA Yellow FNQ R 1 2 3 AMP Mem Branch Circuit power will be supplied to the circuit board as long as the main power is connected There is no true off Figure 1 Branch Circuit Overview The branch circuit is the power supply for the circuit board It is comprised of the following components Power supply from the MDR Mercury Displacement Relay The Transformer 240 ACV Primary and 24 ACV CT Center Tapped Secondary An EMI Electromagnetic Interference Filter 2 Class CC 1 2 amp ACV fuses and their holders primary side 2 3 amp glass fuses secondary side Models FFG 10 will utilize 1 2 amp circuit breakers these may be mounted externally or internally depending of the date of manufacture These breakers if defective should be replaced m Dc Fuses on the primary side of the transformer must be replaced with exact replacements Symptoms of Fuse Failure No audib
49. at the rear of the AUTOFRY AUTOFRY Models FFG 10 and MTI 10 Basket Motor Circuit Basket Motor Circuit Overview 18 GA Black 18 GA Red tesi Miro CA AN p QR nO Eg N Circuit Board E E 12 VDC Motor with RTD EL 10079 il M1 i lc a od lo 18 GA White __18 GA White w Black Stripe 18 GA White w Red Stripe Figure 1 Basket Motor Circuit for Circuit Boards with an RTD 18 GA Black E i 18GARed jl ans A ii ERO NO Circuit Board E eer S with Thermocouple i 10079K ray 7 NC 12 VDC Motor m ma Y NOTE FA poe g EMEN De Polarity x o Lal e J bates _ 18 GAWhite _ 18 GA White w Black Stripe 18 GA White w Red Stripe Figure 1 A Basket Motor Circuit for Circuit Boards with Thermocouple Polarity Reversed AUTO FRY Models FFG 10 and MTI 10 Basket Motor Circuit The basket motor circuit is comprised of the following components 12 VDC Basket Motor Assembly part no 10042 includes the following e Motor bracket part no 10109 e Normally open switch N O part no 10034 Normally closed switch N C part no 10034 Basket Cam re Feflon Si Seal TN N C Switch Figure 2 Basket Motor and Basket Cam Teflon seai part no 10037 e Switch cam part no 10036 2 Wire Assemblies as follows Motor Harness part no 8 10 NC switch normally closed connection white with red stripe part no 12 10
50. ctric AUTOFRY is manufactures in either 240 Volt three phase or 240 Volt AC single phase consult the ID tag located at the left side of the appliance for specific ratings 7 ca ia A Ex o o o O zo o Se Oo P0 88 2a 33 o eee PA 37 J8 O QI A 240 V ac P 6Kw or 8Kw j oO Q o 23 El Bod go BS 3 88 E i gt E Sa fe ad AE c J7 J8 i REIR Ge mi ii FA o s Y de lue d 240 V ac 6Kw or 8Kw Figure 1 MTI 40 Single Phase wiring AUTOFRY Model MTI 40 Heater Circuit 240 Vac 50 60Hz a A WAAA 3 6Kw or 8Kw in 9 ML 130 rod Q gt gt y ow BST 37 J8 ES 240 V ac AN 6Kw or 8Kw ue Figure 2 MTI 40 Three Phase Wiring AUTOFRY Model MTI 40 Heater Circuit Models with serial numbers 1110 40 and lower use a heater pivot bracket that allows the elements to be lifted out of the oil vat These heater assemblies are equipped with a mercury tilt switch that will de energize the contactor coil when the element is lifted out of the oil vat The high limit used in these models is a manual re set rated at 450 F Unlike the models MTI 5 and MTI 10 the high limit is wired at the coil of the power contactor and not directly in line with main power this is due to electrical ratings The capillary bulb is fixed in place t
51. e basket motor will rotate clockwise to the dispense position This is controlled when the notch in the switch cam contacts the normally open switch The basket motor will rotate counter clockwise from the dispense position to the shake position hold there for a second then return to the dispense position There is no sellable programming for this position in the circuit board with the RTD it is in program 19 for the circuit board with a thermocouple At the completion of the 2nd dispense position the motor will rotate clockwise until the notch in the switch cam contacts the normally closed switch If the basket motor fails to rotate or if it fails to return to the ready position with in 10 seconds the display at the keypad will show the error code ofA04 AUTOFRY Models FFG 10 and MTI 10 Basket Motor Circuit Trouble shooting 1 No motor rotation and an A04 at the display Loose or no connection at the positive terminal of the motor white wire with a black stripe or at the negative terminal of the motor solid white wire e Locked rotor at the motor Striped gears Burned traces at the circuit board due to over rotation Frozen or burned relay at the circuit board 2 Motor rotates as follows Right to cook e Left to drain Left to dispense e Right to shake Left to dispense Right past the ready position continuing for 10 seconds prior to stopping An A04 at the display with an audible tone One or all of the
52. ed Automated Cooking Process Programmable Controls ANSUL Fire Suppression System Warranty 1 Year Parts Labor and 3 Years Electronic Controls Package A GREASE BAFFLE FRONT VIEW The Leader In Ventless ee Deep Frying Technology n i Filtered EXHAUST FAN Kir CHARCOAL FILTER A SECOND FILTER n SIDE VIEW L O SPECIFICATIONS 240 AC Volts Single Phase 17 5 AMPS 4 2 kW Heater Element 6 Power Cord w NEMA 6 20 Plug 2 Gallon Oil Capacity 20 Lb French Fries Hour Frozen to Done Clearances Sides 2 Back 2 Top 24 Construction 1 B Gauge Stainless Steel Shipping Weight 140 Lb Optional Heat Lamp 110 ACV 4 6 AMPS based on a three minute french fry cook time 800 348 2976 Get Fried at www autofry com AUTOFRY ELECTRIC FRYER MODEL MTI 10 Filtered Cooking Air EXHAUST FAN AUTOMATED FOOD DELIVERY R IRE SUPPRESSION SYSTEM Pt E 29 71 GREASE BAFFLE FRONT VIEW A SIDE VIEW 27 12 M 951 72 9A Integral Ventless Hood 240 AC Volts Single Phase Fully Enclosed 3 75 kW Heater Element Automated Cooking Process 18 AMPSQ 208 15 63 AMPS 240 Programmable Controls 6 Power Cord w NEMA 6 30 Plug for ANSUL Fire Suppression System 208V Warranty 1 Year Parts amp Labor NEMA 6 20 Plug for 240V 3 Years Electronic 2 75 Gallon Oil Ca
53. ely install the NCC control board onto the standoffs Making the new connections see Fig 2 1 Plug the new ribbon cable into its socket marked J1 on the control board 2 Plug the black and red wires marked J2 into the socket marked J2 on the control board 3 Plug the black and red wires marked J3 into the socket marked J3 on the control board 4 Plug the wires marked J10 into the socket marked J10 on the control board At the lower left hand corner of the control board there are three sets of two screw terminals see fig 2 Secure the following wires to there respective terminals A Secure the blue and brown wires marked J9 into the terminals marked J9 B Secure the blue and brown wires marked J8 into the terminal marked J8 C Secure the last two blue and brown wires marked J7 into the terminal marked J7 White Terminal Block i O y J L 4 Remove RTD cable and wires from here NE MEC Control Board PN 10079 f FIGURE 1 Mark all wires NCC Up Grade Instructions Thermocouple Wire and Plug NCC Control Board PN 10079 K FIGURE 2 Wire Connections to the NCC Control Board The basket motor polarity must be reversed At the basket motor power terminals switch the white from the negative to positive and the white with the black strip from the positive to the negative BASKET MOTOR WIRING FOR NCC UPGRADE POSITIV
54. epair as needed Check all wiring at circuit board Repair as needed Check all fuses Replace as needed Replace basket motor assembly Basket motor rotates 180 Degrees The display then reads A04 Check all wires Inspect micro switches and test with meter Replace as needed Basket motor freezes in the drain or dump position Remove food basket Shut off main power wait 10 seconds and re start AUTOFRY If basket motor continues to freeze in up position replace circuit board If problem persisted replace basket motor assembly Basket motor rotates very slowly Check voltage at transformer secondary side there should be 12V dc between the center tap Orange wire and each yellow wire Replace transformer Basket motor removal and installation instructions Tool required Multi meter Phillips head screw driver 7 16 open end wrench 7 16 socket 1 4 Ratchet Thermocouple simulator Use caution when working with electrical power EN There is risk of shock Remove the food basket from the cook chamber With a 7 16 wrench loosen the basket cam enough to remove it from the motor out put shaft NOTE The bolt is held in place with a small drop of thread locker to prevent loosening during operation Remove the rear access panel from the AUTOFRY Loosen and remove the two 1 4 blots securing the motor assembly to it s mounting bracket welded in the rear of the AUTOFRY IMPORTANT Label all wires prior to removal Remove all
55. er person authorized by MTI to sell its equipment The attached Warranty registration card must be fully completed and mailed within ten 10 days of receipt to assure the validity of this limited Warranty 3 Exclusions from Coverage of the Warranty This Warranty does not cover any damage to the equipment resulting from accident misuse abuse or negligence failure to follow operating cleaning and periodic maintenance instructions mishandling alteration failure to install in strict conformity with local fire and building codes and regulations ordinary wear and tear resulting from use failure to change filters using only manufacturers supplied at the recommended intervals or if the installation does not comply with set up arid installation instructions The equipment shall not have been previously altered repaired or serviced by anyone other than a service facility authorized by MTI to render such service 4 How to Obtain Service Notification of a defect in the material or workmanship of the equipment shall be to the MTI Factory Service Manager at me number shown below or me dealer from whom you purchased the equipment We want you to be a satisfied customer If a problem does come up that cannot be resolved to your satisfaction please let us know Write to Service Manager Motion Technology Inc 6 Huron Drive Natick MA 01760 1315 Please be sure to include the Model Number Serial Number and the date of original purchase
56. figuration 2 Pole 3 Wire Grounding 240 Volt AC Motion Technology Inc 6 Huron Drive REV 001 6 99 Natick MAO 1760 MTI 5 amp 10 1 Phase NEMA 6 20 Plug Configuration Pole 3 Wire Grounding 240 Volt AC Motion Technology Inc 6 Huron Drive REV 001 6 99 Natick MAO1760 41 LC 240 240 gt TIT MTI 40 3 Phase NEMA 15 50 Plug Configuration Motion Technology Inc 6 Huron Drive REV 001 6 99 Natick MA 01760 Ribbon Cabte 5 COM i if n 18 Ga Yellow TRL SERVICE A 1 18 Ga Orange peo ma 7 18 Ga Yellow zn QEELGQQLOQUI 2 ee D CIN MN ex f s 18 Ga Blue one i E A ERE E E Y 4 18 Ge Blue 1 e COM i 2 E r I E i a i 1 CC 8 i i ent O Org PR Y e i E i E E x n prom E 18 Ga Yellow No l amp c gt PY Vc ee ee A ER o s LE No cia eS Mm AR os E 18 Ga Bl du mu au nu 2 KE 8 Ga Blue COM gt i S a 2 7 LS S 8 18 Ga White DEA 18 Ga White S i 2 E 18 Ga Bik aes Mt z i mE dd Basket t i 3 pta OB Motor 1 D pRO OL ee n3 ae ts i ai SER oan Pb fam ne o fee i mud uuu 2 l M dri erii Ae aBewwne SU dodo A i rll A eee tr iE a i Chute Solenoid VN L5 a White LBluc iss A NE REM ha ex Ne 16 Ga Black Brown 12 Ga Brown AI 1 i l l I i l e i 450 Deg ar Ma
57. following is the cause Loose or no connection at the normally closed switch black and or red wires Loose or no connection at the M4 terminal positions 1 amp 2 9 black and or red wires 3 Motor rotates as follows Note There will not be an A04 error in this case Right to cook e Right to 45 then stops Relays will Click Right to ready position A loose or no connection at the normally open switch solid white wire or the white wire with the red stripe causes this 4 The motor functions however the cam does not rotate or the basket does not move Loose basket cam Worn motor shaft Basket not properly installed 5 Basket motor rotates however it is very slow Transformer secondary side voltage drop Incorrect fuses at the Primary side fuse holder AUTOFRY Models FFG 10 and MTI 10 Basket Motor Circuit Replacing the Basket Motor Assembly part no 10042 1 2 3 4 Figure 3 Basket Motor Installed Disconnect the AUTOFRY from main power Open the main door and remove the following components The wire food basket The heater box assembly The oil pot With a 7 16 wrench loosen and remove the basket cam from the motor shaft Inspect the D shaped hole for signs of wear and replace the cam if necessary Remove the rear access panel from the AUTOFRY With a 7 16 open end wrench or small 1 4 drive ratchet and 7 16 socket loosen and remove the 2 motor mounting bolts and lock washers Discon
58. front of the AUTOFRY loosen and remove the screws securing the keypad frame Disconnect the ribbon cable and install the new keypad CAUTION Do not ground the contacts of the keypad against the chamber as this could cause a short If the keypad does short against the chamber the display LED s may not all illuminate if this does happen try disconnecting the cable from the keypad then re connect This will sometimes correct the problem Otherwise a new keypad will be necessary 6 Cable X Ay connection at Ellkeypad i l d V S F3 o y QU nu Y Figure 3 Key Pad Removal AUTOFRY Models FFG 10 and MTI 10 Key Pad Circuit Test the new keypad 1 Ribbon Cable connection at 240 the circuit board If the problem persists remove the old ribbon cable Remove the rear access panel disconnect and remove the old cable from the circuit board Install the new cable and route it through the conduit to the keypad Connect the cable to the keypad and re test Figure 4 Cable connection at circuit board NOTE In some isolated cases there is an excess of RFI Radio Frequency Interference or EMI Electromagnetic Interference this can cause some intermittent display shut downs There may be a need for a stronger EMI filter this can be special ordered This condition exists very infrequently however it is helpful to know AUTOFRY Models FFG 10 and MTI 10 Heater Circuit Heater Circuit Overview M4 Positions
59. gramf 2 3 4 5 amp 0 005995 7 10 i oe 125 amp x 14 15 032 w IAN i 010 18 0 00 0 999 Bastet Cook to Drain Time Basket Grain Tims Fan Off Temp HeaterTime Out to A05 Stat Cook Basket time Basket Drain to Dump Time Heater Time Out to A05 Motor time out to A04 Oil change counter Press the 2 key to raise the value or Press the 3 key to Description lower the value Cook Time 1 Cook Time 2 COOK Ime Press the 1 key to Cook Time 4 save the changes CookTime 5 Cook Time 6 To exit Ready Temp programming press the Stand by Terrp OFF key Hysterisis v The arrow points to the Jumper cap located at SW1 This cap will need to be removed to gain access to the programming function for the Milwaukee controllers with the 10F and 10C epprom After removing this cap the display will read 001 Follow instructions for scrolling and entering programs After programming the cap MUST be replaced on the two prongs closest to the arrow AUTOFRY Models FFG 10 MTI 5 MTI 10 amp MTI 40 Programming Programs for the NCC controler are listed below There are two password levels for the NCC controler 1 The use password level Gains access to the six pre programmed cook times ONLY 2 The advanced password level Gains access to all programs To enter advanced programming e Press the OFF Key e Press 2 0 Keys Display will read P e Press 1 9 8 0
60. he bolt makes full contact on the motor shaft to prevent the cam from slipping 3 Tighten the motor mounting bolts to a hand tight fit with a 7 16 wrench of socket AUTOFRY Models FFG 10 and MTI 10 Basket Motor Circuit Testing the motor VERY IMPORTANT Test the motor without the basket in place If the switch cam notch is not in position at the normally closed switch and the AUTOFRY is turned on the motor will rotate 360 until it contacts the switch If the basket is in place it will cause damage to the motor and or the circuit board Dry testing the AUTOFRY equipped with an RTD ONLY You can not dry test an AUTOFRY with a thermocouple unless you have a thermocouple simulator 1 At the circuit board locate and remove the small black iF jumper cap from position PR2 located 1 4 below the 4 beeper see figure 5 s Removing this cap will send a false temperature to the controller allowing the AUTOFRY to operate with out _ heating the oil 2 Install the safety circuit jumper into positions 8 amp 9 at M4 at the circuit board 3 Install the oil pot and the heater box 4 Plug the RTD plug into the heater box q 1 gt 5 Figure 5 Jumper Cap at PR2 VERY IMPORTANT Do Not plug the heater plug in at this time Do Not install the wire food basket AUTOFRY Models FFG 10 and MTI 10 Basket Motor Circuit 5 Plug the AUTOFRY into main power 6 Press the ON key There will be an audible tone e AUTO
61. he wire food basket follow these instructions To raise the ready height of the basket square end of the basket rod 1 Remove the basket from the AUTOFRY 2 With the flange of the basket resting on a sturdy surface place a 10 adjustable wrench on the basket rod end that fits into the basket cam or the square end see figure 8 3 Press down on the wrench to twist the rod slightly A 1 8 twist in the rod will raise the ready height approximately 1 Hi Figure 8 Adjust basket rod 4 Re install the basket into the AUTOFRY and inspect the height Re adjust as necessary to obtain the desired height Keep in mind that if the basket is too high product from the food entry chute will hit the side of the basket It is good practice to test the height using some product To lower the height of the basket at the ready position follow the step 1 amp 2 from above Instead of pressing down on the basket rod pull up to twist the rod Follow step 4 from above VERY IMPORTANT Once the motor has been installed and the basket height has been adjusted if necessary replace the cap onto PR2 Re install the rear cover plate and plug in the RTD plug and test the AUTOFRY in a live test condition AUTOFRY Model MTI 5 Basket Motor Circuit VERY IMPORTANT The AUTOFRY Model MTI 5 basket and motor rotates in a clockwise direction to discharge product from the food basket This rotation is the opposite of the Model MTI 10 The baske
62. heater box is firmly seated Check probe Replace if defective AUTOFRY Model MTI 5 Heater Circuit Addendum to the TSM Testing the Heater Circuit After checking for main power and that the main ON OFF switch is on press the high limit re set this may be the only problem If this does not fix the problem perform a continuity test across the heater socket prongs If there is no continuity open the heater box and test and inspect the wiring high limit and heater element Replace parts as necessary If the heater box assembly checks out in good working condition the follow these steps The first step will be to jump the safety circuit after installing the jumper at J3 remove the basket oil pot and heater box Install a thermocouple simulator to the thermocouple plug and set it at any temperature below 350 F this will allow the heater circuit to energize Install a meter set at AC Volts into the heater supply plug Press the start button at the keypad There should be line voltage at the heater plug if there is not you will need to trace the heater line back as far as necessary to find the interruption of power If there is power at the plug but when installed the heater does not heat check that the plug and the socket make secure contact Live test the AUTOFRY to ensure that the heater heats Then remove the jumper from J3 re install the safety circuit and all panels AUTOFRY Model MTI 40 Heater Circuit The model MTI 40 Ele
63. hermocouple extension lead for short or break Check that heater box is firmly seated Check probe Replace if defective Testing the Heater Circuit After checking for main power and that the main ON OFF switch is on press the high limit re set this may be the only problem If this does not fix the problem perform a continuity test across the heater socket prongs If there is no continuity open the heater box and test and inspect the wiring high limit and heater element Replace parts as necessary If the heater box assembly checks out in good working condition the follow these steps The first step will be to jump the safety circuit after installing the jumper at J3 remove the basket oil pot and heater box Install a thermocouple simulator to the thermocouple plug and set it at any temperature below 350 F this will allow the heater circuit to energize Install a meter set at AC Volts into the heater supply plug Press the start button at the keypad There should be line voltage at the heater plug if there is not you will need to trace the heater line back as far as necessary to find the interruption of power If there is power at the plug but when installed the heater does not heat check that the plug and the socket make secure contact Live test the AUTOFRY to ensure that the heater heats Then remove the jumper from J3 re install the safety circuit and all panels AUTOFRY Model MTI 5 Heater Circuit Addendum to the TSM
64. his time the wait light should be blinking and the fan should be operating Remove the rear access panel Check that all the wire terminals are securely fastened to the safety switches Check for any breaks in the circuit MTI Form SAFT10 Rev 002 1 99 AUTOFRY Models FFG 10 amp MTI 10 Safety Circuit Check that the termination at M4 or J3 on the circuit board is secure and that the red and black wires are screwed in tightly to the 2 pin plug With all components installed in the AUTOFRY and the front door closed perform a continuity test across all the safety switches NOTE There may be three loose wires at the fire system these wires are for the building egress pressure switch Some state codes require that the fryer be linked to the building fire alarm this switch is for those applications only and need not be connected to the AUTOFRY safety circuit Leads from Front Door Switch Filter Cover Plate Switch Fire system switch 2 ND filter switch and fire system leads Grease baffle switch Figure 3 Rear view of safety switches The Model MTI 5 safety circuit functions the same as the safety system for the models FFG 10 and MTI 10 The only notable differences are as follows 3 GET The front door Fe ae E PITE C safety switch is Ca duos ELM mis Bs T f located at the A Dar UL E uw lower right hand X Au WIL E comer of the front witch t T Access to this N N E gt
65. hrough a bulkhead fitting in the oil vat The re set for this limit is located inside the main door at a panel just below the oil vat Also located on this panel in the oil pump on off switch Viton O Ring Mercury Tit Switch Extemal Retaining Clip Figure 3 MTI 40 Heater Pivot Bracket Assembly Serial Numbers 1110 40 and Lower AUTOFRY Model MTI 40 Heater Circuit For MTI 40E models serial numbers 1111 40 and higher the heater elements are mounted directly to the oil pot deck and do not pivot out of the oil The high limit is a 450 F automatic re set type The capillary tube mounted to the element bars is held in place with a bracket that wraps around the elements bars There must be some allowance for play in the capillary tube to prevent the tube from breaking as the element flexes during operation MTI 40 Models with fixed elements ES A mount directly to the oil pot deck Capillary Tube f j PC N These eiements DO NOT fiit Allow for play f The limit capillary bulb mounts on the lower to ensure that element bars tube does not break Element Upper Section Limit Capillary Bull Figure 4 MTI 40 Heater and High Limit Mounting Serial Numbers 1111 40 and Higher AUTOFRY Model MTI 40 Heater Circuit Each element housing consists of three separate resistors although it is possible for the MTI 40 to heat with one or more bad resistors efficiency will be compromised To
66. ide SERVICE REPLACEMENT OF BASKET RECEIVER CLIP TOOLS NEEDED pco Nes DRILL 1 8 DRILL BIT 2 1 8 POPRIVITS POP RIVIT GUN STEPS FOR REPLACEMENT SUAE e ess Place new basket clip over old clip on the fryer Drill 2 1 8 holes 1 in the top and 1 in the bottom of the basket clip Pop Rivit the new clip over the old clip and into the AUTOFRY Install fry basket and check for proper fit If the basket won t fit or is too tight Grind a small portion of the basket rod off and check the fit Repeat if needed AUTOFRY Models FFG 10 and MTI 10 RTD Circuit RTD Resistance Temperature Detector part no 10065 System Overview The Circuit board receives signal strength readings from the RTD those signals are processed via the microprocessor on the circuit board The EPROM programming determines when the contactor coil should be opened or closed based on oil temperature in degrees Celsius The oil temperature is displayed at the keypad display in degrees Fahrenheit If the RTD signal is interrupted while the machine is in the on mode even momentarily the keypad will display 417 and the wait light at the keypad will blink If the machine is in the off mode the wait light will continue to blink Safety Circuit A TRO RID subject to electrical interference Whenever 18 Ga Blue possible di ensure that Circuit Board there is as much M1 Terminal clearance Basket Motor Switch Normally Open o Key Pad
67. ith a 12R3 epprom Milwaukee Circuit boards part 10079 FFG 10 All serial numbers ending in A MTI 10 Serial numbers 4890 10 through 6553 10 MTI 40 Serial numbers 1000 40 through 1064 40 NCC circuit boards part 10079K MTI 10 Serial numbers 6554 10 to present MTI 40 Serial numbers 1065 40 through present MTI 5 Serial numbers 2000 5 through present The quickest way to determine what controller or which epprom is installed is as follows At the keypad 1 Press the OFF key 2 Press the 2 and O key simultaneously If there is no display the Milwaukee controller is installed with a 10F or 10C epprom If the display read 001 the Milwaukee controller with the 12R3 epprom is installed If the display read P the NCC controller is installed The 12R3 epprom and the NCC controller allow for up front programming For the Milwaukee controller with the 10F or 10C epprom access to the control board will be necessary to remove a jumper cap on the board AUTOFRY Models FFG 10 MTI 5 MTI 10 amp MTI 40 Programming The Milwaukee controller temperature program values are in Celsius To gain access to the 12R3 epprom Press the OFF key Press the 2 0 Keys The display reads 001 To scroll through the programs press the 2 key to move UP or press the 3 key to move DOWN Press the 1 key to enter the program and display the current value MTI Rat 10079 Controller MTI 10 Values 1 612R3 ONLY Pro
68. k Time 4 5 Cook Time 5 6 6 00 0 05 15 64 Cook Time 6 7 Ready Temp 8 Stand by Temp 9 Hysterisis 10 Basket Cook to Drain Time 11 Basket Drain Time 12 Fan Off Temp 13 999 x Heater Time Out to A05 14 Start Cook Basket time 15 Basket Drain to Dump Time 16 99 x Heater Time Out to A05 17 Motor time out to A04 18 0 00 0 999 Dead Beat Lock Up Counter A06 19 Basket Dump to Drain Time 20 Ready Light f lin temp 21 Ready Light Max Temp 22 New Password User 23 5F CorF F or C Tempera ure Display MTt Part 10079K Controler MTI 5 Values Program Description 1 Cook T 1 2 Cook Time 2 3 Cook Time 3 4 Cook Time 4 5 Cook Time 5 6 6 00 0 05 15 64 Cook Time 6 7 Ready Temp 8 Stand by Temp 9 Hysterisis 10 Basket Cook to Drain Time 11 Basket Drain Time 12 Fan Off Temp 13 999 x Heater Time Out to A05 14 Start Cook Basket time 15 Basket Drain to Dump Time 16 99 x Heater Time Out to A05 17 Motor time out to A04 18 0 00 0 999 Dead Beat Lock Up Counter A06 19 Basket Dump to Drain Time 20 Ready Light Min temp 21 Ready Light Max Temp 22 New Password User 23 5F CorF F or C Temperature Display AUTOFRY TROUBLE SHOOTING GUIDE PROBLEM POSSIBLE CAUSE SOLUTION UNIT WILL NOT TURN ON UNIT STARTS UP THEN AN SFT IS DISPLAYED AT THE KEY PAD AUTOFRY WILL NOT HEAT UP OR A05 IS DISPLAYED ON KEYPAD UNABLE TO ENTER A COOK TIME ON KEYPAD Prb A07
69. ket Motor Assy P N 40042 Same as MTI 10 The diagram below shows the rear view of the basket motors for the Models MTI 10 with serial numbers 1110 40 and lower Note that the polarity has been reversed in order for the motors to rotate counter clockwise for the lefts side and clockwise for the right side The left side motor and wiring is identical to the Model MTI 10 WT RD fwn AUTOFRY Model MTI 40 Basket Motor Circuit In the diagrams below are the wiring and switch illustrations for AUTOFRY models MTI 40E and MTI 40G with serial numbers 1111 40 and higher These motors are not interchangeable with any other AUTOFRY Models nor will they work in MTI 40 Models with serial numbers 1110 40 and lower Serial Numbers 1111 40 and up CADA Clockwise Rotation to DUMP Counter clockwise rotation to dump Left Side Basket Motor Assy P N 40042L Right Side Basket Motor Assy P N 40042R IMPORTANT These motors and the baskets start in the level position AUTOFRY Model MTI 40 Basket Motor Circuit As with all basket motor repairs it is important that the technician test the repair WITHOUT the basket installed This precaution will prevent damage to the basket motor and circuit board in the event the polarity of the motor is incorrect Always test any fuses attached to the motor wiring and always test the fu
70. le tone from the circuit board when the AUTOFRY is connected to main power AUTOFRY Models FFG 10 and MTI 10 Branch Circuit No response at the circuit board and or keypad when the ON key at the key pad is pressed No response from the exhaust fan Inspect the following Remove the caps from the fuse holders remove the fuses and check them with a meter for continuity f the fuses fail replace them with similar parts fias i VERY IMPORTANT The Class CC fuses must be installed with the Nipple end into the fuse holder body first As shown in figure 2 R x den WU Verify that there is voltage at the wall Figure 2 Fuses and Fuse Holders socket 230 ACV Verify continuity from the power plug to the MDR Mercury Displacement Relay Verify that the connections from the MDR to the transformer are made Inspect the soldered connections at both the primary and secondary sides of the transformer AUTOFRY Models FFG 10 and MTI 10 Branch Circuit Check for line voltage at the following locations NOTE With the exception RTD circuit all blue and brown wires should be carrying line voltage At the MDR line in At the MDR line out to the transformer 18 GA blue and Brown Wires At the transformer primary connections 18 GA Blue and Brown wires At both sides of the EMI filter Line and Load At the fuse holder connections AODA Branch Circuit Fuses and Holders 7 Pin Plug and Socket EMI Filter Line T
71. liquid seal nut at the RTD probe threads on the interior of the heater box 3 Disconnect the probe leads from the RTD socket 4 Remove the RTD probe Please save and return the defective part to the factory 5 Place the new probe end into the probe clip attached to the heater element tubes at the front of the heater box 6 Route the probe leads through the hole in the heater box 7 Gently rotate the probe so that the threaded end is through the hole in the heater box Do Not twist bend or break the probe during this installation AUTOFRY Models FFG 10 and MTI 10 RTD Circuit 8 Place the liquid seal nut over the probe leads Loosely thread the nut onto the probe fitting Using an adjustable wrench tighten the nut onto the probe Ensure that you use a second wrench on the probe nut at the front side of the heater box to keep the probe from twisting during this installation 9 Connect the probe leads to the two outside prongs of the RTD socket 10 Ensure that the probe leads are as far away as possible from any of the power supply wire at the interior of the heater box The RTD is subject to electrical noise interference It is VERY IMPORTANT that these leads be isolated 11 Replace the heater box cover reinstall the heater box assembly into the AUTOFRY and test for function Slide the heater box into position on the oil pot Ensure that both plugs are secure into their sockets at the bottom of the heater box Ensure that there
72. ltration System ANSUL Fire System Independent I TUUM MM Removabla i Oil Filtration Oil Disposat System Front View 26 FEATURES SPECIFICATIONS d Remova Oil Filtration Oil Side View Integral Ventless Hood 130 00BTU Hr Total Fully Enclosed 120 ACV 15 Amp Required Independent Fry Vats 120 Volt 4 5 Amp Oil Filtration System Dual Basket Automated Food Delivery 50 Lb Oil Capacity Programmable Controls 10 Cold Zone Built in Oil Filtration Disposal System 60 Lb French Fries Hour Frozen to Done ANSUL Fire Suppression System Shipping Weight 400 Lb Stainless Steel Construction Clearances Sides 2 Back 4 Top 24 Warranty 1 Year Parts Labor and Class B Gas Vent Required Consult Local Codes Available for natural gas or propane based on a three minute french fry cook time 800 348 2976 li ASF BOCA ES Get Fried at wwuu autofry com 3 Years Electronics Controls Package Motion Technology Inc PH 508 553 0082 FX 508 653 1736 Motion Technology Inc FFG 10 MTI 10 Model Name Voltage Wattage Amperage Hz Phase Plug Configuration Serial Numbers Thermistor Style Controller Style Note Listings Changes Serial Number Ranges Changes Serial Number Ranges Changes Serial Number Ranges Changes Serial Number Ranges FFG 10 MTI 10 MTI 10 4160 208 amp 4800 240 18 03 208 amp 15 63 240 1
73. lug in the AUTOFRY and turn it on See the attached diagram for reference Remove sealant from allen set screw Use a 1 8 allen wrench to adjust the set screw Rotate Counter clockwise to deciease sensitivity AUTOFRY Models FFG 10 8 MTI 10 Safety Circuit Additional Notes and Information Depending on the model and date of manufacture the air flow switch may not look like or be located in the same position as the one shown in figure 5 Some models incorporated a small black box type air switch that is located on the component board follow the clear plastic hose to locate this switch This style switch is adjustable however the technician will need to use a 1 16 flat screwdriver to adjust the sensitivity on this switch If the AUTOFRY has been stored in bellow zero temperatures for any extended period of time 1 week or more the liquid in the fire system cylinder may have Jelled This condition will affect the pressure switch on the system tank Allow the system to thaw at room temperature until the switch responds If the installation of the AUTOFRY is at high altitude there may not be sufficient air pressure to activate the airflow switch It may be necessary to adjust the switch to its lowest setting If the AUTOFRY is exposed to extreme high temperature an over heating at the circuit board may result This condition could result in intermittent shutdowns simulating a safety circuit fault Allow adequate ventilation
74. nect all wires e f helpful tag each wire 1 Prior to installing a new motor clean all areas of any oil traces 2 Inspect the replacement motor The replacement motor has been tested at the factory however it should be inspected for any damage incurred in shipping Ensure that the Teflon seal is present if not use the seal from the old motor LUN e M Mounting Bracket A gt C1 and bolts L E 0 SS Cw Inspect all wiring and replace if necessary Inspect the circuit board for any burned traces see figure 4 AUTOFRY Models FFG 10 and MTI 10 Basket Motor Circuit At the backside of the circuit board inspect the traces just above the M2 or J10 terminal block If these traces are burned replace the circuit board see figure 4 Attach all wires to their appropriate switches and motor terminals 1 Place the new motor into position on the motor mount bracket and loosely secure with the 1 4 20 bolts and lock washers 2 Attach the basket cam to the motor shaft at the interior of the cook chamber Place a small drop of medium strength thread locker to the 1 4 28 bolt prior to installation Burnt traces at M2 caused by a motor that had over traveled II Figure 4 Circuit Board There is a D shaped hole in the basket cam that will fit over the motor shaft it may be necessary to de bur the hole in order for it to fit over the shaft Ensure that t
75. nspect the circuit board for damage or burned or scorched components Inspect the heater plug and cable for excessive grease build up and for any visual damage Remove the wire food basket from the cook chamber Removing the wire food basket will ease access to the oil pot and heater box assembly Ensure that the oil pot is filled to the cold fill line approximately 2 below the top edge of the pot Test the heater box assembly for continuity at the heater EC socket See figure 4 Push this re set button in Li Figure 4 Bottom View of heater box Test for continuity or resistance here AUTOFRY Models FFG 10 and MTI 10 Heater Circuit Clean the IEC socket of any and all accumulated oil Inspect the interior of the heater box for shorted loose or damaged wires and connections Check for any signs of immersion and dry all connections as necessary Re set the high limit Install the heater box onto the oil pot Plug the RTD or Thermocouple plug into its socket at the bottom of the heater box assembly Install meter probes into the heater plug line and neutral connections Set meter to ACV Plug the AUTOFRYinto main power The fan will come on The MDR will energize There will be line voltage at the heater plug After 12 seconds there should be a display at the keypad of current oil temperature Re connect the heater plug to the heater box and verify that the oil is heating Allow the oil to reach it s ready
76. nual Reset K type t ihermocoupter l l t i 1 l 230 ACV 1900 W Heater 1 1 1 A i i 1 i I J i ar Me Ud A ta a Man trm e s na i Drawing Autofry Mode MTI 5 Wiring Diagram All t 18 Gage Wire Stranded TEW 600 V 105 C All 22 Gage Wire Stranded TEW 600 V 105 C All 12 Gage Wire Stranded THHN 600 V 105 C Date 9 20 96 Alta 16 Gage Wire Stranded Thin COU V 105 C Page 1 0f2 Motion Technology Inc 6 Huron Drive Natick MA 01760 Ove Styre Ribbon Cable Display Board 5 a 18 Ga Yellow y 218 Ga Orange al 18 Ga Y lo a Yellow Le 1 E 18 Ge Blue Ne NAT je r y 1 a E 14 Ga Blue 4 COM 1 e 3 l 5 1 i a i E 1 P a 18 Ga Orange El E 2 et x 2 dee ead PE c Le Gar APE gro 4 E E T 18 Ga Yellow E a i oe ES 2 i V ner one au 18 Ga Glue COM gt wt vu su wo 18 Ga Dive COM RE is 18 Ga White Sa Waid f ee us le aa hee a 18 Ga White z 18 Ga Bik ki lt x Y 50 E j ae 2 i id ES ge 3 PE ag we SER asf i ERO uta a 18 Ga White TORT UM 2 NN SEE DETAIL A E Chute Solenoid 1 12 Ga Blua 450 Deg Manual Reset type 120ACV 1725 W Heater m mJ Drawing Autofry Model MTI 5 Wiring Diagram dato Motion Technology Inc 6 Huron Drive Natick MA 01760 i AN 8 15 Gage Wire Stande E 60
77. op and Load Bottom MDR Line in and Branch Circuit Supply Transformer Primary Side Figure 3 Components Transformer Secondary Side AUTOFRY Models FFG 10 and MTI 10 Branch Circuit If there is voltage throughout the primary side of the circuit inspect the secondary side 1 From the center tap at the transformer 18 GA Orange wire to either of the two yellow wires there should be 12 14 Volts AC supplying the circuit board 2 Across both yellow wire there should be 24 2 5 VAC Inspect the 7 pin plug at the lower right hand corner of the circuit board Ensure that all connections are secure and that there is no visible snorting 3 Inspect the traces at the back of the circuit board for burning If there are any signs of burning at these locations at the circuit board the board will need to be replaced Up Grade Instructions for NCC Up Grade Kit Please read all these instructions prior to performing this up grade This up grade will take between 1 2 to 1 hour to complete Parts included with this up grade are as follows Qty Part Description 10051K NCC Display Board 10050K Ribbon Cable 10079K NCC Control Board WK Cable Thermocouple Wire and Plug Assembly NOTE In addition to these parts a new heater box assembly equipped with a K Type thermocouple will need to be installed For FFG 10 models the heater element wattage must be 208 Volt 3750 Watts Part
78. pacity Controls Package 30 Ib French Fries Hour Frozen to Done Clearances Sides 2 Back 2 Top 24 Construction 16 Gauge Stainless Steel is BOCA ES CE Shipping Weight 210 Lb 27 OM Optional Heat Lamp 110 ACV 4 6 AMPS Shipping Dimensions 32 x 32 x 32 The lender in fully enclosed rentless frying technology 800 348 2976 Get Fried at www autofry com AUTOFRY ELECTRIC FRYER MODEL FFG 10 Filtered EXHAUST FAN Cooking Air CHARCOAL FILTER SECOND FILTER IRE SUPPRESSION SYSTEM AUTOMATED FOOD DELIVERY SP m B See i 29 GREASE BAFFLE Y aa FRONT VIEW ioe SIDE VIEW 27 1 2 Re 25 1 2 a FEATURES SPECIFICATIONS Integral Ventless Hood 208 240 AC Volts Single Phase Fully Enclosed 3 75 kW Heater Element Automated Cooking Process 18 AMPS Programmable Controls 6 Power Cord w NEMA 6 200 Plug ANSUL Fire Suppression System 2 75 Gallon Oil Capacity Warranty 1 Year Parts amp Labor 30 Ib French Fries Hour Frozen to Done 3 Years Electronic Clearances Sides 2 Back 2 Top 24 Controls Package Construction 16 Gauge Stainless Steel Shipping Weight 210 Lb Optional Heat Lamp 110 ACV 4 6 AMPS based on a 3 minute french fry cook time Qj 65 e CE The leader in fully enclosed rentless frying technology 800 348 2976 Get Fried at www autofry com AUTOFRY The Leader In Ventle
79. pect the rubber grommet at the chamber wall If the grommet is missing the cable may be shorting against the stainless steel chamber wall Replace the grommet and cable if necessary If all systems test OK at the front of the unit remove the rear cover plate and inspect the following The butt splice between the 18 2 cable assembly and the brown and blue 18 gauge wires that connect to the circuit board The 2 pin connection at M3 on the circuit board Check with a meter the continuity from the 2 pin connector to the RTD plug to ensure the wiring is secure If the problem persists Replace the circuit board AUTOFRY Models FFG 10 and MTI 10 RTD Circuit Testing the RTD Probe Use a multi meter set at 200 Ohms to check the resistance at these two prongs of the RTD IEC socket The center prong has no connection i a ine uu Figure 2A Bottom View of the Heater Box Assembly Fours 2B RTD Socket and Leads With a multi meter set at 200 ohms check the resistance at the RTD socket located on the underside of the heater box assembly or remove the socket and test directly at the RTD leads see figures 2A amp 2B At a room temperature of 70 F the resistance should be 108 Often times the RTD probe registers resistance at room temperature however as the oil temperature is increased the probe may open It is wise to gradually heat the probe end while measuring the resistance to ensure that the probe doesn t fail Using
80. place it with the new 4 wire cord and plug Install the red terminal block to power contactor wire assembly securing it in place with the existing wire harness cable clamps oy a B D Terminal Block to DUE m E Contactor Wire rex ia 7 Harness z hi e d E IA 3 Coil Leads Single Phase contactor Figure 4 Single Phase Power Contactor AUTOFRY Model MTI 40 Phase Conversion Instructions With a meter locate and mark the element resistor leads as shown below and connect them to the new three phase power contactor as shown in the wiring diagram below A 2 va Pee See doe ue Bs SINGLE PHASE POWER CONTACTOR THREE PHASE ELEMENT AND CONTACT p E SINGLE PHASE POWER CONTACTOR R WIRING TH E THREE PHASE POWER CONTACTOR Figure 5 THREE PHASE POWER CONTACTOR Wiring Diagrams AUTOFRY Model MTI 40 Phase Conversion Instructions Make the conversion 1 Install the new three phase power contactor note the arrow locations indicating UP Connect the element resistor leads as follows R11 to R32 R21 to R12 and R31 to R22 see figure 5 and figure 6 then connect each set of leads to the bottom terminals at the three phase power contactor Re attach the coil leads to the three phase contactors Attach the power supply leads including the new red leads to the top terminals of the contactor 5 Install the new power suppl
81. platform Push down to secure the connections between the heater and thermocouple plug and sockets If a secure connection is not made the display at the keypad will read Prb or AO7 or AO8 AUTOFRY Model MTI 5 Heater Circuit Addendum to the TSM Error Codes A05 OH temperature has not reached set point with in 16 min 49 sec Troubleshoot Low voltage Check supply voltage Dead leg Check power supply voltage ground to line amp ground to neutral Check main ON OFF switch High limit tripped Re set limit by pressing red button at the bottom of the heater box Heater box not firmly seated on the platform Re seat heater box Heater plug has slipped down Loosen clamp and push plug up until a solid contact is made tighten clamp Loose wiring Check all wiring in the heater box Loose wiring Check all wiring from the contactor to the heater supply plug A07 Frequency Conflict Troubleshoot Check harmonization of Thermocouple leads Yellow to Yellow and Red to Red at the thermocouple plug and socket Ensure that thermocouple wiring at circuit board is yellow to top terminal and red to lower terminal Check thermocouple extension lead for short or break A08 Temperature difference of 50 degrees in 5 second Troubleshoot Check oil level Press OFF at keypad then re start Prb Open thermocouple circuit Troubleshoot Check wiring Check thermocouple extension lead for short or break Check that
82. pply the heater Mm 240 Vac 50 60 Hz n DI To Transformer Branch Circuit Main ON OFF The safety circuit and se thermocouple circuit Si 6530032 must be closed in order for this circuit to operate The manual re set limit must also be closed for this circuit to operate Error Codes AO5 Oil temperature has not reached set point with in 16 min 49 sec Troubleshoot Low voltage Check supply voltage Dead leg Check power supply voltage ground to line amp ground to neutral Check main ON OFF switch High limit tripped Re set limit by pressing red button at the bottom of the heater box Heater box not firmly seated on the platform Re seat heater box Heater plug has slipped down Loosen clamp and push plug up until a solid contact is made tighten clamp Loose wiring Check all wiring in the heater box Loose wiring Check all wiring from the contactor to the heater supply plug A07 Frequency Conflict Troubleshoot Check harmonization of Thermocouple leads Yellow to Yellow and Red to Red at the thermocouple plug and socket Ensure that thermocouple wiring at circuit board is yellow to top terminal and red to lower terminal Check thermocouple extension lead for short or break A 08 Temperature difference of 50 degrees in 5 second Troubleshoot Check oil level Press OFF at keypad then re start Prb Open thermocouple circuit Troubleshoot Check wiring Check t
83. ram for both the three phase and the single phase models THREE PHASE THREE PHASE POWER CONTACTOR POWER CONTACTOR SINGLE PHASE POWER CONTACTOR SINGLE PHASE POWER CONTACTOR Figure 2 Wiring Diagram AUTOFRY Model MTI 40 Phase Conversion Instructions Make the conversion ppm m Install the new single phase power contactors Attach the separated heater leads to the Bottom poles of the contactors Re attach the coil leads to the single phase contactors Attach the power supply White or Blue and Black or Brown wires to the Top of the single phase contactors If Necessary Install the new power supply to the terminal block Figure 3 Single Phase Contactor AUTOFRY Model MTI 40 Phase Conversion Instructions To convert the MTI 40 from single phase to three phase follow these instructions This conversion will require the following parts Two three phase power contactors Three phase terminal block to contactor wire assembly I D tag with serial number 4 Wire 6 power supply cord with NEMA 15 50 Plug Disconnect the AUTOFRY from Main Power Remove the rear access panel Disconnect the heater leads from the bottom terminals of the power contactors Disconnect the coil leads from the power contactors Disconnect the power supply leads from the bottom terminals of the power contactors Remove the single phase power contactors Remove the power supply cord and re
84. rive 8 05 Amp 3 5 Amp Max NMA 01760 Brown 7 Yetiow pom m 653 0082 5 Amp Class CC 13 mA 14V de 24V de Max Class 2 6000 c O Display Board 5 Amp Class CC 208 240 ACV 50 60 Hz Power Supply 12 Ga Green or Green Yellow Fire Damper Safety Circuit Ribbon Cable 5 and 12 V dc Class 2 18 Ga Brown Optional Main ON OFF 12 Gs Brown or Black 12 Ga Blue or White 203 240 V ac 50 6 197 Primary o PL 39 3 Amp Slow Blow 2nd Filter Grease Baffle narcoaf Filter S26 3 o So Fitter Cover Fire System Frnt Door e a Sh 4 1 1 i dt I I 1 y t 1 i 1 t i i Circuit Board Part 10079K Used Only with K Type i o Thermocouple I o 3 a F o a v 1 3 2 8 Um 25 9 X o o N o Z Z T 1 o o o 2 o a a E lg 0108 t i gt N N 2 4 d gt 1 D wm M I 1 I t 12 Ga Blue N O Contacts 12 Ga Green or Green Yellow 3 Amp Slow Blow e D 7 loocooooo 1 5 12 V de Class 2 6000c 24 V ac Max Class 2 14 3 SITO 12 Ga Green IH Home N C Over Travel N O AUTOFRY MODEL MTI 5 WITH K TYPE THERMOCOUPLE Wiring Diagram Motion Technology Inc UL File E167654 Revised 11 17 98 ECM Basket Motor 12 VDC Circuit Board J10 pin 6 Connection Motor Heater Bax Assy 4
85. s FFG 10 and MTI 10 Fan Circuit 4 Fan does not operate at all Fan has burned out On board fuses part No 10079 Only have blow Fanrelay on board has frozen Branch Circuit Fuses Blown Inspecting and Testing CAUTION The exhaust fan operates on 220 volts Ensure that caution in used when working on the fan circuit Remove the stack cover at the top of the AUTOFRY Inspect the louvers to ensure that they are open If they are closed or if the fusible link has broken it will Fusible link and cable Need to be assembly repaired Remove any and all debris that may me be accumulated in the fan Inspect the condition of the fan and Mounting JP Y Wires and Its wire terminations Reconnect any Soe i grommet loose wires Check the voltage at the fan terminals there should be line voltage however the fan draws only 1 amp Spin the fan blades to ensure the fan is not bound Figure 3 Fan installed in Stack l AUTOFRY Models FFG 10 and MTI 10 Fan Circuit At the circuit board Part 10079 Check the 2 amp fuses on the circuit board at locations at F1 amp F2 Check the fuses for continuity If they are blown change the circuit board The fuses can be replaced at your shop or return the board to the factory Check the connections at M1 terminal positions 1 amp 2 Ensure that they are snug and making good contact Check the 7 Amp Branch Circuit Fuses Replace with FNQ R1 2
86. s product should be cooked in advance and placed in a warming station 3 Low voltage supply The AUTOFRY can operate on as little as 190 Volts however it will not efficiently heat the oil Verify the line voltage 4 Low amperage Ensure that the circuit is dedicated and grounded 5 Fouled and grease laden plugs and sockets This will impede the heater circuit 6 Check for any break in the heater circuit Inspect all wiring cables and splices 7T Afailure in the RTD or Thermocouple circuit could transmit a false temperature Inspect the RTD or Thermocouple circuit See RTD or Thermocouple Trouble Shooting Testing and Installation 8 Test the heater element for resistance Though highly unlikely the element may be defective however if the AUTOFRY has been run dry for an extended period of time the element may burn out 9 Inspect the circuit board for visible scorching or loose connections Replace if necessary AUTOFRY Models FFG 10 and MTI 10 Heater Circuit Inspecting and Testing Procedure Disconnect the AUTOFRY from main power Verify the line voltage The AUTOFRY will give the appearance of operating if connected to 115 120 ACV however the fan will operate slowly and the heater will not be able to heat the oil There will be a display at the keypad By pass or Jump the safety circuit This will eliminate any safety related problem Inspect all wiring to and from the MDR Inspect the circuit board connections Visually i
87. ses at the primary side of the transformer prior to beginning any motor repair Expensive and time consuming repairs may be avoided by following this advice The use of a thermocouple simulator for units equipped with a K type thermocouple will also eliminate time consuming heat up delays Ensure That Bushing is in Place Use Medium Strength Lock tite on Bolt When installing a new motor assembly ensure that the Teflon bushing is installed on the motor shaft s and that a small drop of medium strength lock tite is used on the Y4 28 cam bolt It is good practice to pre install all wiring before installing the motor assembly AUTOFRY Model MTI 40 Basket Motor Circuit For MTI 40 models with serial numbers of 1110 40 and LOWER the basket cam rotations are as follows Basket Cam Position For MTI 40 with Serial Numbers 1110 40 and LOWER O D READY COOK DRAIN 0 90 DUMP SHAKE DUMP READY MTI 40 Left Side amp O G DRAIN COOK READY S 0 0 READY DUMP SHAKE DUMP MTI 40 Right Side For MTI 40 models with serial numbers 1111 40 and higher the basket cam will start in the COOK position and lower only slightly at when the cook cycle is started Basket Cam Position For MTI 40E and MTI 40G with Serial Numbers 1111 40 and Higher SE READY COOK D O O DUMP SHAKE DUMP READY MTI 40 Left Side G O DRAIN COOK READY 2 90 READY DUMP SHAKE DUMP MTI 40 Right S
88. ss Electric Fryer Model MTI 40E beep Frying Technology DOUBLE BASKET DOUBLE OIL VAT J Air Filtration System FOOD ENTRY CHUTE Fire System I 6 8 kW HEATER n US PER VAT 16 kW TOTAL j Independent Oil Filtration i Disposal System 1 LJ Ramovable Oil Filtration Oil Disposal System 5 Front View Side View 4 30 gt H 32 FEATURES SPECIFICATIONS 240 Volt 16 kW Total 39 Amp 240 Volt 3 Phase B Cord w NEMA 15 50 Plug 120 Volt 4 5 Amp Oil Filtration System 50 Lb Oil Capacity 10 Cold Zone 60 Lb French Fries Hour Frozen to Done Shipping Weight 400 Lb Clearances Sides 2 Back 4 Top 24 based on a three minute french fry cook time 800 348 2976 GET Fried at www autofry com D D rones 508 653 1736 Integral Ventless Hood Fully Enclosed Dual Basket Automated Food Delivery Programmable Controls Built in Oil Filtration Disposal System ANSUL Fire Suppression System Stainless Steel Construction Warranty 1 Year Parts Labor and 3 Years Electronics Controls Package Motion Technology Inc H 508 653 0082 Fx AUTOFRY Gas Fryer Model MTI 40G The Leader In Ventless Gas Must Vent To The Outside Deep Frying Technology Ar THE MTI 40G WAS DEVELOPED WITH THE ASSISTANCE OF GAS RESEARCH INSTITUTE Air End Double Vat Air Fi
89. t Check connections at TC1 on circuit BOE Thermocouple short board Check connections at Press OFF thermocouple socket in heater box yellow red Temperature difference of 50 Check oil level Check oil condition Un nOg Deg In 5 second period plug from wall to clear board Press OFFand Un plug from supply NOTE AO errors should not be confused with cook times Error codes do not use a colon cook times do The NCC controller can display cook times of 11 minutes as follows 11 02 A 02 11 03 A 03 11 04 A 04 11 05 A 05 11 06 A 06 11 07 A 07 11 08 A 08 To Convert To Convert To Convert To Convert CorF F 1 c CorF E i Cot F C CoF F A778 0 7 735 66 20 8 34 445 40 104 15 57 60 140 7 22 1 33 8 611 21 698 11 806 4 1088 1612 061 1418 1667 2 35 6 555 25 716 556 42 1076 1668 d 143 5 16 11 3 874 560 23 434 612 43 409 4 17 23 63 1454 15 56 4 392 a 24 752 667 144 145 17 79 64 tar2 5 00 5 41 i 3 88 25 77 3723 45 113 18 35 65 1489 14 44 6 42 8 333 26 78 8 779 46 Gg BT 18 90 66 1508 389 7 446 277 27 006 834 47 1166 1946 67 152 6 333 8 464 238 28 82
90. t condition is corrected However if the oil temperature is at or above 150 F the fan will continue to run There are three basic switch types utilized in this circuit 1 Plunger style momentary switches part no 10028 S For all the filters the front door the stack cover and the filter cover plate 2 Diaphramtype air flow switch X06313 To monitor the airflow 3 Normally open Air pressure switch no part no To monitor the tank pressure at the fire system MTI Form SAFT10 Rev 002 1 99 AUTOFRY Models FFG 10 8 MTI 10 Safety Circuit Access to all but the front door safety that is located behind the keypad will be made from the rear of the AUTOFRY Trouble Shooting 1 Press the ON key the fan starts and runs for 10 12 second then shuts off and there is never a aaa at the key pad or the display reads Sft Check that the front door is closed and making contact with the safety Check for a worn door gasket or a loose door latch Ensure that all filters are installed and that the filter cover plate is installed Excessive grease build up at one of the safety switches Inspect the tank pressure gauge at the fire system sight window It needs to be in or slightly over the charged zone e Look for any obstructions at the stack cover e Check that the stack cover louvers are open The fan should be visible through the louvers Airflow switch out of adjustment Loose connections at any of the safety switches The
91. t motor assemblies are NOT interchangeable The basket motor wiring is as shown in figure 1 below YELLOW B S RED TC1 AC Home N C 4 Circuit Board Over Travel N O Part 10079K Used Only with K Type Thermocouple ECM Basket Moto Assembly 12 VDC Part 50042 24 V ac Max Class 2 Circuit Board J10 pin 6 Connection Motor 240 V ac 50 60 Hz 5 A 240 V ac No 6000 c 5 A 240 V ac No 100 000 c m o b gt 3 2 e 3 wo y i o z HS E o o o A as o gt e o gt lt E o N 2 Re EN pam Es o 1 1 i 1 l 1 1 i White o L White Black White Red d FIGURE 1 MTI 5 Basket Motor Circuit The basket motor may be protected with an in line 3 Amp Slow blow fuse located on the plus side of the wiring SWITCH CAM ORIENTATION CAM LOBE STAMP NORMALLY CLOSED SWITCH WHITE RED STRIPE C WHITE E vo e eR m RED JUMP TO Pa MOTOR NEG CN BLACK SWITCH CAM SET SCREW NORMALLY OPEN SWITCH FIGURE 2 MTI 5 Basket Motor Assembly Part Number 50042 Front View of Switch Cam and Switches SET BOLT ON 74 28 x 5 8 dicis BASKET CAM FIGURE 3 Basket Cam and Set Bolt The basket cam is secured to the basket motor out put shaft with an 96 28 x 5 8 Hex Head bolt Clockwise Rotation to DUMP J 2 La ue 4 WT BK
92. temp and verify that the MDR coil de energizes Perform a few cook cycles Re install the wire food basket and live test the AUTOFRY with product to ensure the unit functions Return the safety circuit to its normal operating mode and re start the AUTOFRY AUTOFRY Model MTI 5 Heater Circuit Overview The MTI 5 heater circuit operated in the same manner as the MTI 10 and MTI 40 models to heat the oil The only substantial differences are Element Wattages Heater Box Mounting Heater Box Configuration NOTE There is a Main ON OFF switch on the right side of the Model MTI 5 Ensure this switch is in the marked ON position MTI 5 Heater Circuit Wiring Diagram amp Jumper Main power through the ON OFF switch is connected to the MDR or Power Contactor The ES thermocouple circuit i controlled at the circuit Be board reads oil temperature and will energize the contactor coil to close the contacts and supply line voltage to the heater Basket Motor Switches scies Safety Circuit SOS 1 1 1 i 1 I t 1 Circuit Board I Part 10079K Used Only with K Type i Thermocoupie t 1 i 1 i I 1 1 1 24 V ac Max Class 2 A 240 V ac No 100 000 c 3 J10 E dd A 240 V ac No 6000 c 24 V ac ct 80 60 Hz Class 2 1 5 A 12 V de Class 2 6000 The Set point is 352 F MAX There for any time oil temperature is below 354 The contacts and coil will be energized to su
93. there is oil in the oil pot 3 Plug the yellow thermocouple plug into its socket at the bottom of the heater box Make sure to install the plug correctly the large prong goes into the large hole on the socket and the small prong goes into the small hole See fig 4 Figure 4 4 Plug the heater plug into its socket at the bottom of the heater box 5 Plug the AUTOFRY into the main power 6 Close the main door of the AUTOFRY 7 Press the ON key at the keypad 8 Monitor the oil temperature displayed at the keypad to ensure the AUTOFRY is heating After verifying that the oil is heating press the OFF key at the keypad and secure the keypad to the front of the AUTOFRY using the keypad frame Secure the rear panel Carefully package the following items for return to the factory 1 MEC control board 2 Keypad 3 Ribbon Cable 4 Heater box assembly Return Address Motion Technology Inc Attn Service Department 6 Huron Dr Natick MA01760 AUTOFRY Models FFG 10 MTI 5 MTI 10 amp MTI 40 Programming Circuit Board Programming All AUTOFRY control boards contain programs for various temperature and basket functions These programs have been set at the factory however there may be occasions when these program setting may need adjustments or changes The AUTOFRY has utilized two types of controllers they are the Milwaukee controller and the NCC controller The Milwaukee controller may also have been equipped w
94. y cord and plug to the terminal block Ensure that the green ground wire is securely attached to the appliance chassis N ABO Terminal zi Block zl MP y Heater Supply EVA 5 Leads d Figure 6 Three Phase Power Contactor INSTALLATION OF HIGH LIMIT BRACKET ON THE MTI 40 REQUIRED PARTS AND TOOLS e High Limit Bracket Phillips Head Screwdriver e Pliers PROCEDURE 1 Make sure the AUTOFRY is turned off and the oil is cool Remove the HEATER ELEMENT from the AUTOFRY Wipe off any excess oil from the Heater Element Using a Phillips Head Screwdriver unscrew and remove the METAL BAND that holds the High Limit Probe to the Heater Element Dispose of the metal band and screw 4 Using your fingers bend the HIGH LIMIT wire up so it is out of the way Your Heater Element should appear as in Figure 1 Figure 1 5 Place the HIGH LIMIT BRACKET around the Heater Element Bar see Fig 2 Figure 2 Using you fingers bend ONE ARM of the High Limit Bracket over the Heater Element Bar see Fig 3 Using the pliers squeeze the ARM of the High Limit Bracket so That it is tight around the Heater Element Bar see Fig 4 Figure 4 8 Repeat steps 6 and 7 with the OTHER ARM of the High Limit Bracket When you are finished the Bracket should appear as in Figure 5 Figure 5 Using your fingers guide the HIGH LIMIT tube through the holes of the High Limit bracket When you are finished it should appe

Service Manual 2/1999

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