Hot Dry Channel Holding Unit Operators and Service Manual
Contents
1. Installation Instructions 1 Operating temperatures permit safe installation of this holding unit with 1 of spacing between the bottom of the unit and a combustible wall or partition Do not install the holding unit near any combustible objects or surfaces affected by heat or moisture When Mounting by the Overhanging Top Rim in a cut out in the counter top In order to relieve part of the load from the top rim the unit should be supported from below with metal components in a manner compatible with the construction of the counter An extruded gasket is supplied to seal the Dri Channel unit to the counter top Verify the gasket is in place and seals properly to the counter top 4 Electrical e The voltage and wattage ratings of this holding unit are given on the device nameplate Connect the holding unit to a circuit having a voltage similar to that stamped on the device nameplate e Connections to supply line are to be made through the flex conduit whip supplied on the unit e The body of the appliance should be grounded by connecting the ground wire provided in flex conduit whip to a good electrical ground such as a water pipe a steam pipe or a grounded supply conduit e The holding unit is not fused and consequently must be connected to a fused circuit equipped with suitable disconnect means as required by local code authorities 5 Follow instructions in the Operators Manual PERIODIC MAINTENANCE CHECKLIST AND CLEANING GUI2. scale F or C Use the Up and Down keys to adjust the front channel hi temp alarm setting When the desired value is displayed press the PROG key U S and Foreign Patents Pending DUKE MANUFACTURING CO TOLL FREE 800 735 DUKE 3853 8 of 16 314 231 1130 EQUIPMENT DRY CHANNEL HOLDING UNIT MANUAL v The display will show Hi C for 1 second then displays XXX S where XXX is the setpoint temperature for the center channel high temp alarm and S is the temperature scale F or C Use the Up and Down keys to adjust the center channel hi temp alarm temperature setting When the desired value is displayed press the PROG key v The display will show Hi b for 1 second then displays XXX S where XXX is the setpoint temperature for the back channel high temp alarm and S is the temperature scale F or Use the Up and Down keys to adjust the back channel hi temp alarm setting When the desired value is displayed press the PROG key vi The display will show Lo F for 1 second then displays XXX S where XXX is the setpoint temperature for the front channel low temp alarm and S is the temperature scale F or C Use the Up and Down keys to adjust the front channel low temp alarm setting When the desired value is displayed press the PROG key The display will show Lo C for 1 second then displays XXX S where XXX is the setpoint temperature for the center channel low temp alarm and S is the temper
3. ACTURING CO TOLL FREE 800 735 DUKE 3853 6 of 16 314 231 1130 EQUIPMENT MANUAL DRY CHANNEL HOLDING UNIT Electronic Control Fault Indications The control will display a Heating Error under certain conditions It provides an indication to alert the operator to failures in the heater circuit A buzzer will sound for one second every 30 seconds The operator can cancel the alarm with the push of any button The alarm will reactivate after twenty minutes When a Heating Error is displayed the affected well should not be used until a qualified service technician corrects the cause of the fault The control will automatically shut down the affected well The fault conditions that could cause the control to display a heating error are as follows 1 Over Temperature Fault An over temperature fault occurs when the control senses that the well temperature is higher than the specified factory preset temperature This occurs when the power is not removed from the heating element after the channel has achieved the preset temperature causing the control to display the error HIX where X is the affected channel The auxiliary thermostat prevents the temperature from exceeding safe levels by regulating the temperature to a maximum of 375 F 2 Under Temperature Fault An under temperature fault occurs when the control senses that the well temperature is lower than the specified factory preset temperature for more than 30 minu
4. And Illustrations is iisen cseseeeeeseeeeeeseeeeeenseeeseeseeneeuseeeeseaseeeeeeaseneseaseeeeeesseeeseaseneesaseueeeeaseeeeeaseneeeaseeeeeeneneeees 9 Wiring Schematis sa2s essa nce es csctesccteteceezeetestecincnnenticusatesncensetendeaeuseucennus4scestnatvdacsevedeceuctaeioacenstccunerestucense sdaestestendapetacies 12 Wiring Layout for Relay Box Connection 2 2 ceceeee eee eee ee eee ee ee eee eee eee eee eases sees sense 13 Manufacturer s Introduction The Duke Dry Channel Holding Unit was developed to provide the market with a more efficient method of keeping food warm This Supplier Name Duke Manufacturing Co equipment uses electronically controlled heaters to Address 2305 N Broadway warm aluminum channels to a user programmable St Louis MO 63102 temperature Advantages over steam tables include lower energy and maintenance costs Model HDC3 37 5 HDC6 37 5 Unpacking Unit Serial e Inspect the shipping carton and or Date Received container carefully noting any exterior Date Installed damage on the delivery receipt which must Telephone 800 735 DUKE 3853 also be signed by the driver delivery 314 231 1130 person Fax 314 231 5074 e Unpack and inspect for any damage which Service Referral was not evident on the outside of the Local Service shipping container concealed damage Name Contact the carrier immediately and file a damage claim with them Save all packing Local Service materials when fil
5. DE or Operating Instructions All foodservice equipment should be operated by trained personnel Do not allow your customers to come in contact with any surface labeled CAUTION HOT Never pour water into wells This unit is designed for dry operation only Where applicable Do not cook warm or hold food directly in wells Never hold food below 150 F Always place covers on pans when not serving to prevent food from drying out and to reduce your operating costs 7 For most efficient operation keep empty covered pans in each channel during preheating and when the well is not in use 8 The most satisfactory control settings must be determined by experience based on the nature of the foodservice and the type of operation as well as individual preference of the operator The proper switch setting necessary to keep foods at the desired temperature will vary dependent upon the frequency of turnover size of food containers amount of food in each container room temperature location of holding unit with respect to range or other heated equipment air outlets fans doors and passageways OP O CO po e U S and Foreign Patents Pending 5 of 16 DUKE MANUFACTURING CO TOLL FREE 800 735 DUKE 3853 314 231 1130 EQUIPMENT DRY CHANNEL HOLDING UNIT MANUAL Periodic Maintenance Checklist And Cleaning Guide Opening Checklist 1 Place the Power Switch to the ON position 2 Place empty pans or cover the channel
6. Operators and Service Manual Hot Dry Channel Holding Unit U S and Foreign Patents Pending ws o q For information or technical assistance call E 800 735 DUKE 3853 or 314 231 1130 2 26 10 lof16 228954 EQUIPMENT DRY CHANNEL HOLDING UNIT MANUAL TABLE OF CONTENTS Manufacturer s Introduction cccceeeseeeeeeeeeeeeeneeneeeeeeeeeegeeeeeee seen aaaeaeeaeeeeaaaneeeeeeeeeagseaaeeeeeeeesaaeeeeeeseeesaeeeeeeeeeeeess 2 Specification Sheet oinean nonan ianea ce lteedsceeweccaesducksbecdectanstdeazsssusmossaccecsbeteccucsatcchiecdseecdeuateeracegsoddeehirsdaudeGeercstbaeseetea 3 Installation NStrUCtONS s ien sanaaa aspa eaaa a raaa aA a a E aa aa a a a a aaae Enae aAa a E Ee Enana aeann EE Ena 6 Operating Instructions sssaaa eeii senedini asosda sted asarana O eaa aa aa roep eaa etann K A eaa AEKA opa araa Aa aA ENEKEN Saaai 6 Periodic Maintenance Checklist And Cleaning Guide cccsccsseesseeseeeeseeeesseeeneeeenseeeneeeeneeeenseasneeeeaseaenseaenseaenses 7 TrOUDICSHOOTING cecseeeeeeseeeeeeseeenenseeeeeeneeeeeaseeeeeeaseeeeeasseeeeaseeeeeeasaeeseassenseaseeueesasseeeeeaseneeeaseeeeeaseneeeeaseneeeaseceeeaneensenes 8 Electronic Control Fault Indications ccsscsceesseesseeseeeesseeesseeesseeesseeesseneseseesnsnecneeesnsnesaseesnenesaseesasneseseesasneseseeenses 8 Control Programming isis io cise case sanese cae shea ace taact aaa aa a eaae eaaa aE oaan Eara Seapark saaneeni 9 Parts Lists
7. ature scale F or C Use the Up and Down keys to adjust the center channel low temp alarm setting When the desired value is displayed press the PROG key viii The display will show Lo b for 1 second then displays XXX S where XXX is the setpoint temperature for the back channel low temp alarm and S is the temperature scale F or C Use the Up and Down keys to adjust the back channel low temp alarm setting When the desired value is displayed press the PROG key vii CAUTION To comply with sanitation requirements do not set the temperature control lower than 170 F Parts Lists and Illustrations PIN i 558504 Ki Genere HDC 36 Channel Replacement 3 6 _ 2 228888 Assy Control Board Display 3 Channe 1 o a 228881 Assy Control Board Display amp Channe o 1 a 583443 Assy Relay Box W Swich HDC 3 Single Zones 1 o 5 fessa Assy Reley Box WT Swich OCE Single Zone 0 f r 6 218963 Switch Toggle NKK Relay Box 7 r Aas renstormer 082P ASE Ra 1 1 e 218828 Roey Minora oa e a femne ee o a 10 228882 Conduit Assy Power Supply Relay Box 1 1 m 218918 Hamess HOT trRTDs Si me 228820 Hamess Relays Channel i f o 1e 228822 Hamess Relay6 Chann o 0 218902 Terminal Block Ideal 218964 Boot Toggle Switch Splash Proof 218965 Plate On Off U S and Foreign Patents Pending DUKE MANUFACTURING CO TOLL FREE 800 735 DUKE 3853 9 o
8. ays XXX S where XXX is temperature setpoint and S is the temperature scale F or C for the center channel Use the Up and Down keys to adjust the center channel setpoint temperature When the desired setpoint temperature is displayed press the PROG key iii The display will show t b for 1 second then displays XXX S where XXX is temperature setpoint and S is the temperature scale F or C for the back channel Use the Up and Down keys to adjust the back channel setpoint temperature When the desired setpoint temperature is displayed press the PROG key iv The control will exit the program mode and return to the normal display b Programming temperature scale number of channels and Hi and Lo temperature alarms Set up mode for factory and store manager press Up Up Down Down keys in that order i The display will show S where S is the temperature scale that will be displayed F or C Use the Up or Down ley to toggle between F and C When the desired scale is displayed press the PROG key ii The display will show CHnL for 1 second then displays where is the number of active channels Use the UP and down keys to set the number of active channels When the desired number of channels is displayed press the PROG key iii The display will show Hi F for 1 second then displays XXX S where XXX is the setpoint temperature for the front channel high temp alarm and S is the temperature
9. f 16 314 231 1130 fe EQUIPMENT DRY CHANNEL HOLDING UNIT MANUAL Parts Lists and Illustrations Continued U S and Foreign Patents Pending DUKE MANUFACTURING CO TOLL FREE 800 735 DUKE 3853 10 of 16 314 231 1130 EQUIPMENT DRY CHANNEL HOLDING UNIT MANUAL Parts Lists and Illustrations Continued 3 Channel Relay Box U S and Foreign Patents Pending DUKE MANUFACTURING CO TOLL FREE 800 735 DUKE 3853 11 of 16 314 231 1130 EQUIPMENT DRY CHANNEL HOLDING UNIT MANUAL Parts Lists and Illustrations Continued 6 Channel Relay Box U S and Foreign Patents Pending DUKE MANUFACTURING CO TOLL FREE 800 735 DUKE 3853 12 of 16 314 231 1130 DRY CHANNEL HOLDING UNIT EQUIPMENT MANUAL Wiring Schematics DRY CHANNEL WIRING DIAGRAM NOTE 6 channel unit shown 3 channel unit will only have 3 htrs and 3 SSR s SEER Controller pinout information RTD Inputs SSR Outputs Pin Channel Pin SSR 1 il 4 2 2 2 ch1 RTD pis SSROIpIE 3 3 3 chs Tao 4 4 4 Ch2 5 5 5 Ch6 6 6 6 ch3 7 NIC 7 common 8 NIC 8 trans 9 Nic 9 trans 10 1 11 2 12 3 13 4 14 5 15 6 MA aed Om HOIR Yt Ace l v ra nma rom aes mura vice ace v ra nmm HIGH LMT Heating Bement ohni 1 j 1 EA r a AAAA Heating Bement chnl 2 Care erat a gt HIGH wt A AAAAAA Heati
10. ing a claim Freight damage claims are the responsibility of the Installation requirements purchaser and are not covered by the warranty Spacing Requirements 1 of spacing e Do not attempt to use the unit if required below unit damaged If unit has been stored in extremely cold area wait a few hours before connecting power Caution Never pour water into wells This unit is designed for dry heating only 2 of 16 U S and Foreign Patents Pending DUKE MANUFACTURING CO TOLL FREE 800 735 DUKE 3853 314 231 1130 EQUIPMENT DRY CHANNEL HOLDING UNIT MANUAL HDC Specification Sheet Model HDC3 37 5 Shipping Weight Weight 160 Ibs 59 7 Kg ote HDC3 37 5 208 V 10 1 A 2100 W 50 60 Hz 0u LISTED 240 V 11 7 A 2796 W 50 60 Hz Figure 1 1 CONTROL BOX MOUNT UNDER COUNTER hee i DISPLAY BOX MOUNT IN THE APRON ace U S and Foreign Patents Pending 3 of 16 DUKE MANUFACTURING CO TOLL FREE 800 735 DUKE 3853 314 231 1130 EQUIPMENT DRY CHANNEL HOLDING UNIT MANUAL HDC Specification Sheet Model HDC6 37 5 Shipping Weight 315 lbs 117 6 Kg opie HDC6 37 5 208 V 20 2 A 4200 W 50 60 Hz 0u LISTED 240 V 23 3 A 5592 W 50 60 Hz Figure 1 1 DISPLAY BOX MOUNT IN THE APRON U S and Foreign Patents Pending 4 of 16 DUKE MANUFACTURING CO TOLL FREE 800 735 DUKE 3853 314 231 1130 EQUIPMENT DRY CHANNEL HOLDING UNIT MANUAL
11. ng Bement chni3 E EMAV Heating Bement chnl 4 Heating Bement cnni 5 eE gt HOH LMT Heating Bement chni 6 228893 REV A U S and Foreign Patents Pending DUKE MANUFACTURING CO TOLL FREE 800 735 DUKE 3853 13 of 16 314 231 1130 DRY CHANNEL HOLDING UNIT EQUIPMENT MANUAL Wiring Layout for Relay Box Connection 3 Channel Relay Box amen eza PLACE GREEN GROUND WIRE FROM POWER WIRE HARNESS UNDER NUT ON STUD HERE IF PROVIDED RTO WIRE HARNESS FROM TUB ENTERS HERE POWER WIRE HARNESS FROM TUB ENTERS HERE MATCH WIRE LABELS ON WIRES FROM ORY CHANNEL TO LABELS IN RELAY BOX U S and Foreign Patents Pending DUKE MANUFACTURING CO TOLL FREE 800 735 DUKE 3853 14 of 16 314 231 1130 EQUIPMENT DRY CHANNEL HOLDING UNIT MANUAL Wiring Layout for Relay Box Connection 6 Channel Relay Box mo s PLACE GREEN GROUND WIRE FROM POWER WIRE HARNESS UNDER NUT ON STUD HERE IF PROVIDED HORD Je N ee RTO WIRE HARNESS FROM TUB ENTERS HERE i g eee POWER WIRE HARNESS FROM TUB ENTERS HERE MATCH WIRE LABELS ON WIRES FROM ORY CHANNEL TOLABELS IN RELAY BOX U S and Foreign Patents Pending DUKE MANUFACTURING CO TOLL FREE 800 735 DUKE 3853 15 of 16 314 231 1130 EQUIPMENT DRY CHANNEL HOLDING UNIT MANUAL FOR CUSTOMER ASSISTANCE To aid in reporting this unit in case of loss o
12. r theft please record below the model number and serial number located on the unit We also suggest you record all the information listed and retain for future reference MODEL NUMBER SERIAL NUMBER DATE OF PURCHASE DEALER TELEPHONE SERVICER TELEPHONE TO PHONE Dial 1 800 735 DUKE 3853 SERVICE PARTS ADDITIONAL CUSTOMER IMFORMATION TO WRITE Duke Manufacturing Co 2305 N Broadway St Louis MO 63102 TO ACCESS INTERNET www dukemfg com Please provide the following information when you write or call model number serial number date of purchase your complete mailing address including zip code and description of the problem U S and Foreign Patents Pending DUKE MANUFACTURING CO TOLL FREE 800 735 DUKE 3853 16 of 16 314 231 1130
13. re and activates a relay to supply power to the heater as needed The display will cycle through the temperature of each channel followed by any fault messages The displayed temperature will be the temperature associated with that channel If the Up arrow is pressed the system will cycle through the channels displaying their actual temperatures If the Down arrow is pressed the system will cycle through the set point temperature of each channel The Heat On LED will be lit to indicate whether a relay is activated for the channel being displayed A fault message will be displayed to indicate any channel that does not reach the set point temperature within 45 minutes of power up The default set point is 275 F Control Adjustments NOTE Once the program mode is entered it may be exited at any time by pressing and holding the PROG key for 6 seconds 1 2 Press and hold the PROG key for 6 seconds The display shows CodE Two levels of programming are available a Programming set points Everyday user press Up Down Up Down keys in that order i The display will show t F for 1 second then displays XXX S where XXX is temperature setpoint and S is the temperature scale F or C for the front channel Use the Up and Down keys to adjust the front channel setpoint temperature When the desired setpoint temperature is displayed press the PROG key ii The display will show t C for 1 second then displ
14. s with lids 3 Allow the Product Holding Cabinet to heat for at least 20 min peration Instructions Adjustments If the control displays a Heating Error it will shut down the affected well Discontinue use of the affected well until the unit is serviced Closing Checklist 1 Turn power switch OFF 2 Remove all pans and pan covers 3 Allow unit to cool for approximately 30 minutes 4 Clean Dry Channel Unit as outlined in the Cleaning Instructions Cleaning Instructions 1 Turn unit off and allow unit to cool before surface cleaning Wipe down the interior and exterior of the Dry Channel Unit with warm water and mild detergent using a soft cloth Do not use excessive amounts of water Plastic scouring pads may be used to remove baked on food Clean pans and pan covers using mild detergent and warm water Caution Electrical shock hazard Do not wash with water jet or hose Do not use caustic cleaners acids ammonia products or abrasive cleaners or abrasive cloths These can damage the stainless steel and plastic surfaces Troubleshooting There are no user serviceable parts on the Duke Dry Channel Holding Unit If a malfunction occurs then check all switches and circuit breakers Check rating label and confirm that unit is operating at the proper voltage If the malfunction still exists contact your Duke Manufacturing Company authorized service agent or call 1 800 735 3853 U S and Foreign Patents Pending DUKE MANUF
15. tes continuously This occurs when heating element circuit opens or the RTD Feedback signal is faulty The display will read LOX where X is the channel with the fault 3 Sensor Failure A temperature sensor fault occurs when the control senses a short circuit or open circuit condition in the temperature sensor circuit The display will read PRX where X is the channel with a bad probe The control will display O00 for the temperature of the channel in a fault condition DISPLAY I ATS DISPLAY a Fa WINDOW ae ee WINDOW C Heat o ony A oJI ow ow A TJ OFF X OFF OFF EN KP O O G THIS SIDE PP SIDE OFP UNIT OFF ERATURE OF EACH CHANNEL 3 Channel 6 Channel U S and Foreign Patents Pending DUKE MANUFACTURING CO TOLL FREE 800 735 DUKE 3853 7 of 16 314 231 1130 EQUIPMENT DRY CHANNEL HOLDING UNIT MANUAL Control Operation Apply power to the unit with the main dry channel power switch Press the on off button to turn the unit on The 6 channel has on off buttons for each side of the unit 3 channels closest to operator and 3 channels away from operator The display will scroll through the temperature of each channel Press and hold the on off button for 3 seconds to turn the unit off The controls for the Duke drywell maintain the temperature of the channels The control monitors each channel s temperatu
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