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SSEMBLY

ISASSEMBLY

Heated Shelf Merchandiser

Service Manual

MN-39054

Rev 1

4/17

Continued from previous page

Install the rear service panel.

equipment.

Remove the lockout/tagout

Supply electrical power to the

Turn the temperature control knob

to 10. Test all functions of the
merchandiser. This procedure is complete.

HDC-TS-000668

merchandiser.

Содержание HSM-24/3S-CT

Страница 1: ...alto shaam com Service Manual Heated Shelf Merchandiser HSM 24 5S HSM 36 5S HSM 48 5S HSM 24 3S CT HSM 36 3S CT MN 39054 REV 01 4 17 EN ...

Страница 2: ...en permission of Alto Shaam Inc Trademarks All trademarks referenced in this documentation are the property of their respective owners Manufacturer Alto Shaam Inc P O Box 450 W164 N9221 Water Street Menomonee Falls WI 53052 Original instructions The content in this manual is written in American English User profile The servicer of this appliance must be a qualified and trained Alto Shaam service p...

Страница 3: ...r emergency service call center for immediate access to local authorized service agencies outside standard business hours The emergency service access is provided exclusively for Alto Shaam equipment and is available throughout the United States through Alto Shaam s toll free number Availability Emergency service access is available seven days a week including holidays ...

Страница 4: ...FORWARD Heated Shelf Merchandiser Service Manual MN 39054 Rev 1 4 17 4 ...

Страница 5: ...rical Assembly 16 HSM Electrical Assembly Cont 17 Temperature Controller 18 Heating Pads 19 Theory 20 HSM 24 5S 208 240V 230V 20 HSM 36 5S 208 240V 230V 22 HSM 48 5S 208 240V 230V 24 HSM 24 3S CT 120V 26 HSM 24 3S CT 208 240V 230V 28 HSM 36 3S CT 208 240V 230V 30 Schematics 32 HSM 24 5S 208 240V 230V 32 HSM 36 5S HSM 48 5S 208 240V 230V 33 HSM 24 3S CT 120V 34 HSM 24 3S CT 208 240V 230V 35 HSM 36 ...

Страница 6: ...TABLE OF CONTENTS Heated Shelf Merchandiser Service Manual MN 39054 Rev 1 4 17 6 ...

Страница 7: ...is explained below DANGER Danger indicates a hazardous situation which if not avoided will result in serious injury or death WARNING Warning indicates a hazardous situation which if not avoided could result in serious injury or death CAUTION Caution indicates a hazardous situation which if not avoided could result in minor or moderate injury NOTICE Notice indicates a situation which if not avoided...

Страница 8: ...tner or trained technician Only allow an authorized service partner or trained technician to service or to repair the merchandiser Installation or repairs that are not performed by an authorized service partner or trained technician or the use of non factory authorized parts will void the warranty and relieve Alto Shaam of all liability When working on this merchandiser observe precautions in the ...

Страница 9: ...e H05RN or H07RN equivalent must be used NOTICE Where local codes and CE regulatory requirements apply appliances must be connected to an electrical circuit that is protected by an external GFCI outlet CAUTION Power source must match the voltage identified on appliance rating tag The rating tag provides essential technical information required for an appliance installation maintenance or repairs D...

Страница 10: ...rious injury death or property damage Electrical V Ph Hz A kW HSM 48 5S HSM 36 5S HSM 24 5S HSM 36 3S CT HSM 24 3S CT 1 60 208 240 19 0 21 9 4 0 5 3 230 1 50 60 20 0 4 6 1 208 240 60 14 4 16 7 3 0 4 0 230 1 50 60 15 0 3 5 1 208 240 60 10 8 12 5 2 3 3 0 230 1 50 60 11 5 2 9 1 60 208 240 8 8 9 2 1 9 2 5 230 1 50 60 9 0 2 1 120 1 60 15 0 1 8 1 208 240 60 6 5 7 5 1 4 1 8 230 1 50 60 7 0 1 8 Dedicated ...

Страница 11: ...nnected to the appropriate power source 2 Locate the power switch below the top canopy of the left side of the merchandiser 3 Press the power switch to the ON l position 4 Turn the control panel door latch 5 Pull the door open 5 Turn the temperature contol knob s to the desired Power Switch Indicator light Temperature control knob HDC TS 000533 number 1 is low temperature 10 is high temperature ...

Страница 12: ...COMPONENTS Heated Shelf Merchandiser Service Manual MN 39054 Rev 1 4 17 12 C OMPONENTS Component Identification HDC PHD 000538 HSM 48 5S HSM 24 5S HSM 36 3S CT HSM 24 3S CT ...

Страница 13: ...al MN 39054 Rev 1 4 17 13 RTD Temperature sensor 1000 ohm LED lights non polarized terminals LED light bar Polarity specific wiring Positive wire denoted by the white stripe 3 inch box fan impedance protected Airflow direction specific HDC PHD 000579 ...

Страница 14: ...COMPONENTS Heated Shelf Merchandiser Service Manual MN 39054 Rev 1 4 17 14 HSM CT Component Access Panels Rear Service Panel Control Panel ON OFF Switch RTD Temperature Sensor HDC PHD 000542 ...

Страница 15: ...PONENTS Heated Shelf Merchandiser Service Manual MN 39054 Rev 1 4 17 15 HSM 5S Component Access Panels ON OFF Switch Control Panel Top Service Panel Rear Service Panel HDC PHD 000546 RTD Temperature Sensor ...

Страница 16: ...rvice Manual MN 39054 Rev 1 4 17 16 HSM Electrical Assembly Terminal Blocks ABCDE HDC PHD 000567 HSM 24 5S HSM 36 5S HSM 48 5S CDE L2 N Fans Fan Fuse Heating Pad White Wire HSM 24 208 240V 230V Heating Pads L1 GND DC DC Fuses DC DC DC Lights ...

Страница 17: ...y Cont HSM 24 3S CT Electrical Assembly Terminal Blocks Terminal Blocks HSM 36 3S CT Electrical Assembly HDC PHD 000550 MAIN TERMINAL BLOCK MAIN TERMINAL BLOCK TB1 T B 2 T B 3 T B 4 TB7 TB8 TB9 TB13 TB12 TB11 TB10 FB 1 FB 2 TB1 T B 2 T B 3 T B 4 TB7 TB8 TB9 TB13 TB12 TB11 TB10 FB 1 FB 2 A B C A B C ...

Страница 18: ...COMPONENTS Heated Shelf Merchandiser Service Manual MN 39054 Rev 1 4 17 18 Temperature Controller HDC PHD 000571 GND Indicator light Temperature control knob ...

Страница 19: ...eating Pads WH EL 36461 120 240 Volt 550 Watts HSM 24 Blk Blk Blk EL 37091 240 Volt 750 Watts HSM 36 Blk Blk EL 37134 240 Volt 1000 Watts HSM 48 Blk HDC PHD 000577 BLK BLK BLK BLK BLK BLK Wire WH to either BLK BLK to BLK Ohm 52 105 Wire BLK to BLK Ohm 77 Wire BLK to BLK Ohm 58 ...

Страница 20: ...temperature controller corresponding to surface temperature of the shelf it is mounted to The temperature controller monitors the requested temperature from the temperature control knob setting and the shelf temperature from the RTD temperature sensor When a call for heat is made the temperature controller closes the NO contacts of the relay L1 voltage is supplied to the terminal block and then to...

Страница 21: ...Y Heated Shelf Merchandiser Service Manual MN 39054 Rev 1 4 17 21 A2 A1 Terminal Blocks Relay Reference image only Use the electrical schematic for troubleshooting HDC WD 000597 DC L1 L2 N COM N O DC L1 L2 N ...

Страница 22: ...l blocks The RTD temperature sensor provides a resistance signal into the temperature controller corresponding to surface temperature of the shelf it is mounted to The temperature controller monitors the requested temperature from the temperature control knob setting and the shelf temperature from the RTD temperature sensor When a call for heat is made the temperature controller closes the NO cont...

Страница 23: ...eated Shelf Merchandiser Service Manual MN 39054 Rev 1 4 17 23 A2 A2 Relay A1 Terminal Reference image only Use the electrical schematic for troubleshooting Blocks HDC WD 000601 DC L1 L2 N COM N O DC L1 L2 N A2 ...

Страница 24: ...r from the L1 and L2 N terminal blocks The RTD temperature sensor provides a resistance signal into the temperature controller corresponding to surface temperature of the shelf it is mounted to The temperature controller monitors the requested temperature from the temperature control knob setting and the shelf temperature from the RTD temperature sensor When a call for heat is made the temperature...

Страница 25: ...ndiser Service Manual MN 39054 Rev 1 4 17 25 Re Rela lay y Re R R Re e ela l l la a ay y y y A2 A1 Terminal Reference image only Use the electrical schematic for troubleshooting Blocks HDC WD 000605 DC L1 L2 N COM N O DC L1 L2 N ...

Страница 26: ...e temperature controller corresponding to surface temperature of the shelf it is mounted to The temperature controller monitors the requested temperature from the temperature control knob setting and the shelf temperature from the RTD temperature sensor When a call for heat is made the temperature controller closes the NO contacts of the relay L1 voltage is supplied to the terminal block and then ...

Страница 27: ...EORY Heated Shelf Merchandiser Service Manual MN 39054 Rev 1 4 17 27 Relay Terminal Blocks Reference image only Use the electrical schematic for troubleshooting HDC WD 000584 L1 L2 N COM N O DC DC L1 L2 N ...

Страница 28: ...ature of the shelf it is mounted to The temperature controller monitors the requested temperature from the temperature control knob setting and the shelf temperature from the RTD temperature sensor When a call for heat is made the temperature controller closes the NO contacts of the relay L1 voltage is supplied to the terminal block and then to one of the black wires of the heating pad The other b...

Страница 29: ...HEORY Heated Shelf Merchandiser Service Manual MN 39054 Rev 1 4 17 29 Relay Terminal Blocks Reference image only Use the electrical schematic for troubleshooting HDC WD 588 DC L1 L2 N COM N O DC L1 L2 N ...

Страница 30: ...stance signal into the temperature controller corresponding to surface temperature of the shelf it is mounted to The temperature controller monitors the requested temperature from the temperature control knob setting and the shelf temperature from the RTD temperature sensor When a call for heat is made the temperature controller closes the NO contacts of the relay L1 voltage is supplied to the ter...

Страница 31: ...EORY Heated Shelf Merchandiser Service Manual MN 39054 Rev 1 4 17 31 Relay Terminal Blocks Reference image only Use the electrical schematic for troubleshooting HDC WD 000592 DC L1 L2 N COM N O DC L1 L2 N ...

Страница 32: ... MN 39054 Rev 1 4 17 32 S CHEMATICS HSM 24 5S 208 240V 230V CD 33840 CD 33840 CD 36231 CD 36231 CD 3922 CD 3922 CD 33925 CD 33925 CD 3588 CD 3588 CD 34207 CD 34207 HDC WD 000840 A1 A1 A2 A2 6 3A 6 3A 6 3A 6 3A 12VDC 12VDC BRN BRN BLU BLU 5020770 5020770 ...

Страница 33: ...andiser Service Manual MN 39054 Rev 1 4 17 33 HSM 36 5S HSM 48 5S 208 240V 230V CD 33840 CD 36231 CD 3922 CD 33925 CD 3588 CD 34207 HDC WD 000810 BRN BRN 12VDC 12VDC 6 3A 6 3A 6 3A 6 3A 3 0A 3 0A A1 A1 A2 A2 5020770 5020770 BLU BLU ...

Страница 34: ...20761 TB9 TB13 FANS TB7 TB7 TB8 FB1 FB2 LI 35742 TB12 TB11 TB13 LIGHT 10 3 120V CORDSET PLUG 30A 125V NEMA L5 30P 14 3 120V CORDSET PLUG 15A 125V NEMA 5 15P 12 3 120V CORDSET PLUG 20A 125V NEMA 5 20P 120V 120V 120V CD 33366 CD 3232 CD 3397 27 17 17 17 85 86 183 185 184 186 17 83 84 137 138 135 136 23 23 53 53 I4 I6 68 73 77 78 71 13 I5 I3 22 25 24 21 30 28 29 GND COM L1 N O N O N L2 67 69 70 Contr...

Страница 35: ...7 83 84 85 86 183 185 184 186 FB1 FB2 LP 37100 LI 35742 TB12 TB11 TB13 TB13 LIGHT LIGHT BA 38198 12VDC POWER SUPPLY I2 I4 I6 137 138 129 121 135 136 73 77 76 78 71 75 N O N L2 HSM ELEMENT HSM ELEMENT TB4 TB3 LI 36912 LIGHT TB1B LI 36912 LIGHT TB1C GND N O N L2 HSM ELEMENT Controller CC 36830 TB2 LI 36912 LIGHT TB1A GND COM L1 COM L1 N L2 CC 36830 12 15 14 11 20 18 19 N O 92 17 17 I1 91 NC 94 17 17...

Страница 36: ...LUG 15A 250V NEMA 6 15P 230V 16 AMP CORDSET 16 AMP 250V 701410 PLUG CEE 7 7 SCHUKO CD 33840 CD 36231 CD 3922 CD 33925 13 AMP 250V BS 1363 UK GRN BWN BLU 23 23 53 53 83 84 85 86 183 185 184 186 17 27 17 17 17 I2 I4 I6 137 138 129 135 136 73 77 76 78 71 75 I5 I1 I3 126 67 69 65 119 121 68 70 66 119 74 121 17 TB7 62 64 G B R BR BU 96 17 I1 95 TB7 92 17 17 I1 94 17 I1 93 91 17 7 3 13 1 8 9 L1 SN 37077...

Страница 37: ...N OFF switch to the ON position Measure the voltage at terminals A1 and A2 of the contactor Move the ON OFF switch to the ON position Measure the voltage at the load side of the ON OFF switch Repair or replace the wiring from the ON OFF switch to terminals A1 and A2 of the contactor No Does the voltage correspond to the voltage printed on the serial number tag Does the voltage correspond to the vo...

Страница 38: ...from the unit Measure the resistance value of the heating pad Does the heating pad have the correct resistance value No Replace the heating pad Yes Repair the wire connections at the terminal block Yes Measure the resistance value of the RTD temperature sensor for the shelf that is not heating No Measure the voltage at terminal blocks L1 to L2 N Does the temperature sensor have the correct resista...

Страница 39: ...espond to the voltage printed on the serial number tag No Repair or replace the wiring Yes Measure the voltage across the red and black wires of the power supply Is the measured voltage 12 VDC No Replace the power supply Yes Measure the voltage from the load side of the fuses to the black wire of the power supply Is the measured voltage 12 VDC No Replace the fuse Yes Repair or replace the wiring f...

Страница 40: ... number tag No Repair or replace the wiring to the terminal blocks L1 and L2 N Yes Repair or replace the wiring from terminal blocks L1 and L2 N to the fans No Is this a 48 5 shelf HSM 48 5S unit Yes Measure the voltage at the terminal blocks on the load side of fuse F3 to L2 N Does the voltage correspond to the voltage printed on the serial number tag No Replace fuse F3 Yes Repair or replace the ...

Страница 41: ...ement Continued on next page Disconnect the electrical power 1 2 3 4 source to the merchandiser Install lockout tagout equipment Remove the rear service panel Remove the electrical service panel Record the terminal blocks that the heating pad wires are installed into Disconnect the heating pad wires from the terminal blocks HDC TS 000609 ...

Страница 42: ... from previous page Continued on next page guard assembly Bottom shelf only Remove the shelf Remove the screws securing the shelf to the back of the unit Disconnect the RTD temperature 5 6 7 sensor wires from the temperature controller 8 assembly Bottom shelf only Remove the shelf HDC TS 000612 ...

Страница 43: ... 4 17 43 Continued from previous page Continued on next page Remove the screws securing the shelf guard Remove the shelf guard Remove the screws from the sides of the shelf Remove the shelf from the unit 9 Remove the screws securing the shelf to the support 10 11 HDC TS 000656 ...

Страница 44: ...helf Merchandiser Service Manual MN 39054 Rev 1 4 17 44 Continued from previous page Continued on next page Remove the heating pad from the shelf 13 12 Turn the shelf over Remove the shelf bottom Remove the insulation HDC TS 000658 ...

Страница 45: ...diser Service Manual MN 39054 Rev 1 4 17 45 Continued from previous page Continued on next page 15 14 Remove the covering from the heating pad adhesive Install the heating pad Install the new RTD temperature sensor HDC TS 000660 onto the shelf ...

Страница 46: ...al MN 39054 Rev 1 4 17 46 Continued from previous page Continued on next page 17 16 Install the insulation Install the shelf bottom screws into the sides of the shelf Install the shelf guard Install the screws securing the shelf guard Install the HDC TS 000662 ...

Страница 47: ... 17 47 Continued from previous page Continued on next page Install the shelf into the unit to the support Install the screws securing the shelf 19 20 18 21 Bottom shelf only Install the shelf assembly into the unit guard assembly Bottom shelf only Install the shelf HDC TS 000664 ...

Страница 48: ...d from previous page Continued on next page 25 24 22 Install the screws securing the shelf 23 to the back of the unit Connect the RTD temperature sensor wires to the temperature controller Connect the heating pad wires into the terminal blocks Install the electrical service panel HDC TS 000666 ...

Страница 49: ...4 17 49 Continued from previous page 29 28 26 Install the rear service panel equipment 27 Remove the lockout tagout Supply electrical power to the Turn the temperature control knob to 10 Test all functions of the merchandiser This procedure is complete HDC TS 000668 merchandiser ...

Страница 50: ...Heated Shelf Merchandiser ...

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