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Service Manual

DRY CHANNEL

MODELS

HDC3/HDC6

Please read this manual completely before attempting

to install, operate or service this equipment

This document is prepared for trained Duke service technicians. It is not to be used by anyone not

properly qualified to perform these procedures.

This Service Manual is not all encompassing. If you have not been trained on servicing this product,

be sure to read the manual completely before attempting servicing. Be sure all necessary tools, test

equipment, and skills are available. Those procedures for which you do not have the proper skills

and test equipment must be performed only by a qualified Duke trained service technician.

Reproduction without written permission is prohibited. Duke is a registered

trademark of the Duke Manufacturing Company.

Duke Manufacturing Company

2305 N. Broadway

St. Louis, MO 63102

Phone: 314-231-1130

Toll Free: 1-800-735-3853

Fax: 314-231-5074

www.dukemfg.com

P/N 219217C

Содержание HDC-37.5-240

Страница 1: ...nual completely before attempting servicing Be sure all necessary tools test equipment and skills are available Those procedures for which you do not have the proper skills and test equipment must be...

Страница 2: ...MMABLE VAPORS OR LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE WARNING DO NOT OPERATE THIS EQUIPMENT WITHOUT PROPERLY PLACING AND SECURING ALL COVER AND ACCESS PANELS CAUTION Observe the foll...

Страница 3: ...S REQUIRED 7 CONTROL DISPLAY 7 CONTROL BOARD OR MYLAR COVER 7 RELAY BOX 8 Main Power On Off Switch 8 Solid State Relays 9 24 Volt Step Down Transformer 9 CHANNEL ASSEMBLY 10 TESTING AND TROUBLESHOOTIN...

Страница 4: ...the two zones INTRODUCTION Relay Box Display Box I DRY CHANNEL TEMPERATURE PROG Tub Main Power ON OFF Switch Channel 3 Zones 3A 3B Channel 1 Zones 1A 1B Channel 2 Zones 2A 2B Figure 1 Dry Channel Maj...

Страница 5: ...on on the weight and electrical requirements TABLE 1 MODEL SPECIFICATIONS MODEL NO SHIPPING WT ELECTRICAL SPECIFICATIONS HDC3 37 5 208 160 lbs 59 7 kg 208VAC 10 1A 2100W 50 60Hz HDC 37 5 240 160 lbs 5...

Страница 6: ...oint temperature and fault conditions The control board inside the Control Display maintains the temperature of all three channels EachchannelhasanA Bzone Thecontrolboard monitorseachzone stemperature...

Страница 7: ...hannel unit from its power source Use proper Lockout Tagout procedures 3 Remove the four screws securing the Control Display and move it away from mounting surface 4 If the Control Display is to be co...

Страница 8: ...or cabinet configuration used 1 Place the Main Power On Off Switch in the off position 2 Remove the Dry Channel unit from its power source Use proper Lockout Tagout procedures 3 Remove the four screws...

Страница 9: ...w of SSR 1 Using a Multimeter determine which SSR has failed 2 Tag and disconnect the wires from the faulty SSR 3 Remove the two screws that attach the SSR to the board and remove the faulty SSR 4 Rev...

Страница 10: ...ect the Dry Channel unit from its power source Use proper Lockout Tagout procedures 3 Remove six screws three on each side attaching the channel top frame to the tub Figure 12 HDC6 Channel Configurati...

Страница 11: ...ns Fault conditions are indicated on the Control Display 1 High Temperature Fault For a High Temperature Fault the display will show HIX where X indicates the channel F for front C for center and b fo...

Страница 12: ...condary voltage 7 If the secondary voltage is near 24 VAC Transformer is operating properly If voltage is lowor0VAC disconnectwirefromTransformer secondary and recheck secondary voltage If voltage is...

Страница 13: ...follow the procedure described in the CHANNEL ASSEMBLY paragraph in COMPONENT REPLACEMENT section 1 Disconnect the RTD wires 2 Connect an ohmmeter across the RTD leads and verify that the resistance...

Страница 14: ...each Heater Element causing the Heater Element to operate through the normallyclosedHi LimitThermostatandbegin raising the temperature of the channel 7 When the heat reaches the set point temperature...

Страница 15: ...r Hi Limit Thermostat Defective RTD Defective SSR Defective Control Board Defective Display Board Plug unit in to proper power outlet Move the Main Power On Off Switch to on position Replace Control B...

Страница 16: ...ROBE 3A PROBE 2A PROBE 1A PROBE 3B PROBE 2B PROBE 1B To connector To connector To connector To connector To connector To connector High Limit High Limit High Limit Heating Element 3A Back Left Heating...

Страница 17: ...17 Service Manual for Dry Channel HDC3 HDC6 Units SINGLE ZONE WIRING DIAGRAM...

Страница 18: ...Service Manual for Dry Channel HDC3 HDC6 Units 18 NOTES...

Страница 19: ...19 Service Manual for Dry Channel HDC3 HDC6 Units NOTES...

Страница 20: ...Service Manual for Dry Channel HDC3 HDC6 Units 20 Duke Manufacturing Company 2305 N Broadway St Louis MO 63102 Phone 314 231 1130 Toll Free 1 800 735 3853 Fax 314 231 5074 www dukemfg com P N 219217C...

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