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SERVICE MANUAL

HEATED LANDING ZONE (HLZ 18 AND HLZ 22)

Frymaster L.L.C., 8700 Line Avenue 71106, P.O. Box 51000, Shreveport, Louisiana 71135-1000

318-865-1711       FAX 318-862-2394

Printed in the United States

Service Hotline

1-800-24-FRYER

819-5659 (7/00)

This equipment chapter is to be inserted in the Equipment Manual.

TABLE OF CONTENTS                     Return to Cover

1.

WARRANTY STATEMENT ...........................................................................................................1

1.1

WARRANTY PROVISIONS - HEATED LANDING ZONE....................................................................................... 1

1.2

PARTS RETURN .................................................................................................................................................... 1

1.3

WARRANTY EXCLUSIONS ................................................................................................................................... 1

2.

PARTS ORDERING AND SERVICE INFORMATION ...................................................................2

3.

HEATED LANDING ZONE............................................................................................................3

4.

INSTALLATION/SETUP................................................................................................................3

5.

OPERATION .................................................................................................................................3

6.

HLZ MODEL/COMPONENT IDENTIFICATION ............................................................................4

7.

HLZ COMPUTER OPERATION AND PROGRAMMING ...............................................................5

7.1

PROGRAMMING TEMPERATURE ........................................................................................................................ 5

7.2

OPERATION........................................................................................................................................................... 5

8.

HLZ OPERATOR TROUBLESHOOTING .....................................................................................8

9.  SERVICE  INFORMATION .….…………..……………………………………………………..…..…   10

9.1  PARTS LIST…….……………………………………………………………………………………………………………....10

9.2  INTERIOR VIEW OF AN HLZ ….…………………….……………………………………………………………………….10

9.3  PROCEDURES..…………………………………………………………………………………………..…………..…....…11

9.4  TROUBLESHOOTING FLOWCHART…………………………………………..…………………………….…..…..….... 15

9.5  COMPONENT TEST PROCEDURES………………………………………………………..……………….……………. 18

9.6  AIR HEATER/PLATE HEATER RTD RESISTANCE CHART................................................................................... 21

9.7  WIRING DIAGRAM .................................................................................................................................................. 22

APPENDIX A PROTOTYPE UNITS (BUILT BEFORE JUNE 15, 1998)…………….……………….… 23

MANUFACTURED BY FRYMASTER, L.L.C.

P.O. BOX 51000

SHREVEPORT, LOUISIANA  71135-1000

PHONE 1(318)865-1711

1 (800) 24 FRYER

Summary of Contents for HLZ 18

Page 1: ...S ORDERING AND SERVICE INFORMATION 2 3 HEATED LANDING ZONE 3 4 INSTALLATION SETUP 3 5 OPERATION 3 6 HLZ MODEL COMPONENT IDENTIFICATION 4 7 HLZ COMPUTER OPERATION AND PROGRAMMING 5 7 1 PROGRAMMING TEMP...

Page 2: ...L SERVICE AND ACCESS PANELS ARE IN PLACE AND PROPERLY SECURED DO NOT ATTEMPT TO REPAIR OR REPLACE ANY COMPONENT OF THE HLZ SERIES UNLESS ALL POWER TO THE UNIT HAS BEEN DISCONNECTED USE CAUTION WHEN SE...

Page 3: ...repair failure to follow proper installation instructions and or scheduled maintenance procedures as prescribed in your MRC cards improper maintenance damage in shipment abnormal use removal alteratio...

Page 4: ...on may be obtained by calling the Frymaster Service Department The following information will be needed in order to assist you quickly and efficiently Model Number _________________________ Serial Num...

Page 5: ...ogging the blower assembly Simply fit the part on to the vent opening of the computer cowl assembly The filter screen will snap into position If equipped with an optional holding screw tighten screw t...

Page 6: ...ine Page 4 1 800 24 FRYER 6 HLZ MODEL COMPONENT IDENTIFICATION Heated air flows from the air heater blower and heat rises from the heater plate Heater Plate Calibration Socket Air Heater Calibration S...

Page 7: ...et between 170 F to 240 F the factory default is set to the McDonald s standard of 220 F If the factory default temperature settings are acceptable skip to Section 7 20 Page 6 Ensure that the HLZ comp...

Page 8: ...programming both heaters press the Check Switch again to store the programmed setpoints and exit the programming mode OR to change the setpoint temperature for the other heater press the correspondin...

Page 9: ...n a specific location in the display when either the heater plate or air heater is energized When the HLZ is ready for operation the display reads REdY ready Place product in the HLZ in accordance wit...

Page 10: ...rational Run the unit for 20 minutes before continuing with troubleshooting Observe the computer display Go to next page and continue at the top of the flow chart The blower latching relay or solid st...

Page 11: ...is faulty Heater plate RTD is faulty Contact your authorized Frymaster servicer HI Press the plate heater temp switch once to see actual temp Is the plate heater temp within 15 F of programmed temp Pl...

Page 12: ...18 Plate Heater with RTD and Thermocouple 208 240V 22 x12 806 9239 9 Plug Assembly Computer 806 9146 10 Relay Solid State Service Kit 826 1508 11 Relay Latching 807 3021 12 Blower 208V 240V 807 2953 I...

Page 13: ...on the heater plate while troubleshooting 2 Replacing Solid State Relays a Avoid miswiring Examine the terminals carefully and take notes to avoid miswiring b Remove the plate holding the relay assemb...

Page 14: ...eplacing Air Thermocouple and Air RTD Probe a Follow procedures in section 9 3 2 to access the Air Delivery tower components b Cut old lead wires close to the faulty air thermocouple or Air RTD Probe...

Page 15: ...e acrylic tape from the heater plate and frame to prevent rebounding while servicing g When reinstalling the heater plate apply new acrylic tape to the HLZ chassis first Then position the heater plate...

Page 16: ...delivery panel 4 Test fit the air delivery assembly to see if a gap is visible once the assembly is properly seated If a gap remains apply a second gasket to create a better seal 5 Make sure the brac...

Page 17: ...ions The right box gives the corresponding test procedure to verify the possible solution or corrective action Test procedures are found on pages 16 18 WARNING INSPECTION TESTING AND REPAIR OF ELECTRI...

Page 18: ...y 5 Foreign object is stalling the blower 1 Test E 2 Test F 3 Test B 4 STD 5 N A 1 Heater Plate RTD is faulty 2 Computer has failed 3 Wiring connection is faulty 1 Test C 2 N A 3 STD NO YES Does LED l...

Page 19: ...s failed 5 Wiring connection is faulty 1 Test G 2 Test H 3 Test D 4 Test B 5 STD NO Push button 4 once to check actual air temp then push again to check set point After an additional 7 minutes does RE...

Page 20: ...ck for 208VAC or 240VAC across the input line terminals of the transformer b Test for approximately 14VAC across the output load terminals of the transformer 3 c If 208 240VAC is applied and output vo...

Page 21: ...the computer plug See figure 9 10 page 20 4 Compare resistance with actual air temperature using the resistance chart on page 21 TEST E LATCHING RELAY 1 Set up HLZ series for testing 9 3 1 2 Remove t...

Page 22: ...29 4 ohms TEST H SOLID STATE RELAYS Air Heater and Plate Heater Relays 1 Set HLZ series up for testing 9 3 1 2 Turn computer ON With the computer calling for heat light on a Measure voltage across ter...

Page 23: ...0 158 1264 71 159 1266 71 160 1268 72 161 1270 72 162 1272 73 163 1274 73 164 1276 74 165 1278 74 166 1280 75 167 1282 76 168 1284 76 169 1287 77 170 1289 77 171 1291 78 172 1293 78 173 1295 79 174 12...

Page 24: ...L C 8700 Line Avenue 71106 P O Box 51000 Shreveport Louisiana 71135 1000 318 865 1711 FAX 318 862 2394 Printed in the United States Service Hotline Page 22 1 800 24 FRYER 9 7 Wiring Diagram Wire Diagr...

Page 25: ...t 806 8988 Controller HPLA 807 2323 UHC Heater Plate 18 807 1568 Air RTD Probe HPLA 12 Computer Part Number Description 806 9155 Cowl Assembly 807 3002 Plate Heater 12 910 8138 Bumper HPLA 18 Burger 8...

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