AccuTemp EVOLUTION ELECTRIC Service Manual
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- Service manual (59 pages) ,
- Installation & operator's manual (29 pages)
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Summary of Contents for AccuTemp EVOLUTION ELECTRIC
- Page 1 EVOLUTION ELECTRIC SERVICE MANUAL ACCUTEMP PRODUCTS INC 8415 N. CLINTON PARK DR ● FORT WAYNE, IN 46825 ● 800 480-0415 ● www.accutemp.net SP8027-1203 Email: service@accutemp.net...
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Page 2: Important For Your Safety
IMPORTANT FOR YOUR SAFETY The Safety Instructions listed on this page below, should be posted in a prominent location as a reminder of safe practices; as well as, recommended actions to follow in the event of an equipment or facility’s utility issue. WARNING In the event of a Power Failure, DO NOT attempt to operate this appliance. -
Page 3: Warning Symbol Definitions
WARNING SYMBOL DEFINITIONS SYMBOL DEFINITIONS Symbols are used to attract your attention to possible dangers. They are only effective if the operator uses proper accident prevention measures. Some of the symbols are boxed text; while others maybe just picture icons. Please give this information the respect they deserve for safe operation. -
Page 4: Safety Precautions
SAFETY PRECAUTIONS DANGER ELECTRICAL SHOCK HAZARD WHILE WORKING ON ENERGIZED EQUIPMENT. Unplug equipment prior to removing any components effected by electricity. BURN HAZARD WHILE WORKING ON STEAM PRODUCING EQUIPMENT. When accessing the cooking chamber, be sure to always stand back while slowing opening the door to allow the chamber to vent off the steam. -
Page 5: Warning & Caution Notes
WARNING & CAUTION NOTES WARNING ONLY QUALIFIED SERVICE TECHNICIANS SHOULD PERFORM MAINTENANCE ON THIS EQUIPMENT. CAUTION • DO NOT use abrasive materials, such as wire brushes or metal scouring pads to clean the Water Sensors. • DO NOT use Aluminum Oxide Sandpaper to clean the Water Sensors. It leaves a residue that will not allow Water Sensors to work properly. -
Page 6: Table Of Contents
TABLE OF CONTENTS SAFETY Important For Your Safety............................i Warning Symbol Definitions..........................ii Safety Precautions..............................iii Warning & Caution Notes.............................iv T.O.C. & MANUAL HISTORY Table of Contents...............................v-vi Revision Sheet................................1 NOTES Troubleshooting Notes............................2 OPERATIONAL & COMPONENT INFORMATION Purpose Reference of Main Component Chart....................3-5 Additional Component Part Numbers........................5 Sequence of Operation............................6-7 Modifying Control/Keypad Program Settings.......................8 TROUBLESHOOTING... -
Page 7: Table Of Contents
TABLE OF CONTENTS COMPONENT REMOVAL & INSTALLATION (CON’T) Location of Cast Heater Picture Overview......................20 Cast Heater Replacement Kit..........................21 Cast Heater Removal & Installation..........[2 PERSONS REQUIRED]....22-24 Cast Heater Installation Notes & Cautions......................24 Miscellaneous Components Removal & Installation..................25-26 Auto-Fill Valve..........................High Water (Overfill) Reed Switch........[2 PERSONS REQUIRED]..Float Ball (Magnetic)........................ -
Page 8: Revision Sheet
REVISION SHEET Current Revision: 1203 Prior Revision: Date: 3/31/12 Date: Change: Initial Release. SP8027-1203 Pg 1... -
Page 9: Troubleshooting Notes
TROUBLESHOOTING NOTES TROUBLESHOOTING NOTES If the steamer is not reaching temperature: • Ensure that the steamer is not in the HOLD Mode verses the COOK Mode. The default mode for the steamer, when the PWR button is turned ON, is COOK. So, if the operator presses the Timer Button then the Cook/Hold button;... -
Page 10: Operational & Component Information Purpose Reference Of Main Component Chart
PURPOSE REFERENCE OF MAIN COMPONENTS Component Part # Purpose • Provides line voltage to the Solid State Relay(s), when the contactor’s Contactor AT0E-1587-4 coil is closed by the control signal sent from the Water Control Board. (3 Pole) • Provides line voltage to the Transformer. Transformer AT0E-2662-5 •... - Page 11 PURPOSE REFERENCE OF MAIN COMPONENTS Component Part # Purpose • Solenoid Valve that allows water to flow into the steam chamber; that Auto-Fill Valve AT1A-3841-1 is controlled automatically by the Water Board based on inputs from (OPTIONAL) the Water Sensor Probes. •...
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Page 12: Additional Component Part Numbers
PURPOSE REFERENCE OF MAIN COMPONENTS Component Part # Purpose • Provides temperature input to Control/Keypad Board, which displays Temperature the temperature in the steam chamber based on resistance changes (RTD) AT0E-3626-1 from the Temperature (RTD) Sensor. Sensor • Used to maintain the preset HOLD mode temperature. •... -
Page 13: Sequence Of Operation
SEQUENCE OF OPERATION INDICATORS AND WATER CONTROL BOARD OPERATION (Manual & Auto-Fill): PWR Button Pushed & Water Level Is Below the Low Water Level Sensor - AUTO-FILL • The Low Water Light Indicator will be lit. • is displayed on the Control/Keypad Board. •... - Page 14 SEQUENCE OF OPERATION CAST HEATER GENERATING HEAT OPERATION (Manual & Auto-Fill): Power Cord Plugged-In & PWR Button Not Pushed • Line Voltage comes into the 3 Pole Contactor’s L1 - L3 terminals. (Refer to the unit’s specific wiring schematics to determine the wire color to “L” Terminal location.) •...
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Page 15: Modifying Control/Keypad Program Settings
MODIFYING CONTROL / KEYPAD PROGRAM SETTINGS Hrs/Min/Sec LED Lights UP Arrow COOK/HOLD TEMP Display DOWN Arrow POWER TIMER S1 - Increase Program Item (Will cycle the Hrs/Min/Sec LED light) S4 - Decrease Program Item (Will cycle the Hrs/Min/Sec LED light) S3 - Increase Program Value (Will change the Digital Readout display) S6 - Decrease Program Value (Will change the Digital Readout display) S2 - Exit &... -
Page 16: Troubleshooting Flow-Diagram
Under Cooked Component Voltages Correct Float Ball Ball Installed Different DONE Problem WITH With Steamer Call CHART Operations AccuTemp Float Ball Ball Service Present Call Call AccuTemp AccuTemp Service Service Call AccuTemp (800) 480-0415 or service@accutemp.net Service SP8027-1203 Pg 9... -
Page 17: Flow-Diagram Reference Troubleshooting Chart
FLOW-DIAGRAM REFERENCE TROUBLESHOOTING CHART POSSIBLE CAUSE EVALUATION LETTER Confirm proper voltage is present at receptacle. Power Cord Disconnected Plug-in Power Cord. Unplug steamer and check line voltage at plug-in Breaker Is Tripped receptacle. Reset Breaker. Check for proper incoming line voltage to the primary Transformer side and 24VAC on the secondary side. - Page 18 FLOW-DIAGRAM REFERENCE TROUBLESHOOTING CHART POSSIBLE CAUSE EVALUATION LETTER Control/Keypad Panel Check for 24-30VAC output (J7 Pins 1 & 2). Ensure Door is shut and handle is latched. Check the Door Switch for continuity with Door Door Switch Not Engaging closed. Check the butt splices and wire connection terminals for good crimps.
- Page 19 If you need additional ideas for troubleshooting or want to confirm your symptoms with one of our Service Techs, please contact us by phone or e-mail listed below with the unit’s S/N or Model information. AccuTemp Service Dept. Phone (800) 480-0415 AccuTemp Service Dept. Email service@accutemp.net...
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Page 20: Component Removal & Installation Location Of Electrical Components Picture Overview
LOCATION OF ELECTRICAL COMPONENTS Solid Control/ State Keypad Relays Board & Heat Sinks Chamber Pressure Switch Heater/PWR Power Cord Contactor Water Sensors Terminal Strip Transformer Fuses Water Sensor Control Control Board Relay #1 SP8027-1203 Pg 13... -
Page 21: Electrical Components Removal & Installation
ELECTRICAL COMPONENTS REMOVAL & INSTALLATION CORD & PLUG ASSEMBLY Unplug the Unit. Remove the Left-Side Panel by removing the Sheet Metal Screws holding it in place. Disconnect the Power Cord Leads (Black, White, Red, and/or Green) from L1-3 of the Contactor (note the wire color to its location terminal). -
Page 22: Transformer
ELECTRICAL COMPONENTS REMOVAL & INSTALLATION TRANSFORMER Unplug the Unit. Remove the Left-Side Panel by removing the Sheet Metal Screws holding it in place. Disconnect the wires (note the wire color to its location terminal). Remove the 2 mounting nuts and then remove the Transformer. -
Page 23: Water Sensors
ELECTRICAL COMPONENTS REMOVAL & INSTALLATION WATER SENSORS Unplug the Unit. Remove the Left-Side Panel by removing the Sheet Metal Screws holding it in place. Open the door and ensure that all the water is drained from the steam chamber. Disconnect the wire from the backside of the Water Sensor (access via left-side panel). -
Page 24: Door Switch
ELECTRICAL COMPONENTS REMOVAL & INSTALLATION DOOR SWITCH Door Latch on the Left-Hand Side Fg 1 Unplug the Unit. Remove the Left-Side Panel by removing the Sheet Metal Screws holding it in place. Disconnect the probe wires: Control/Keypad Panel J7 Pin 1 & the White/Brown wire from the Chamber Pressure Switch (the wires to the location pins are enter-changeable). -
Page 25: Chamber Pressure Switch
ELECTRICAL COMPONENTS REMOVAL & INSTALLATION CHAMBER PRESSURE SWITCH Unplug the Unit & remove the Left-Side Panel by removing the Sheet Metal Screws holding it in place. Disconnect the Wiring Terminals from the Chamber Pressure Switch (note the wire color to its location terminal). Remove the hose clamp and disconnect the hose from the Chamber Pressure Switch. -
Page 26: Temperature (Rtd) Probe
ELECTRICAL COMPONENTS REMOVAL & INSTALLATION TEMPERATURE (RTD) SENSOR Unplug the Unit. Remove the Left-Side, Right-Side, and Top Panel by removing the Sheet Metal Screws holding it in place. Disconnect the probe wires from the Control/ Keypad Panel and pull them from the left, over the top, to the steamer’s right-side (the wires to the location pins are enter-changeable). -
Page 27: Component Removal & Installation (Con't) Location Of Cast Heater Picture Overview
LOCATION OF CAST HEATER Cast Heater SP8027-1203 Pg 20... -
Page 28: Cast Heater Replacement Kit
CAST HEATER REMOVAL & INSTALLATION NOTE The 1/4-20# Nut Special Locking Nut, Can Only Be Used Once. Ensure That A New Cast Heater Replacement Kit Is Ordered and Received; Prior to Removing or Installing the Cast Heater. Part #: AT1A-3530-X * (See Page 4) * Order the Cast Heater Replacement Kit for the Correct Heater Wattage Required. - Page 29 MAINTENANCE INVOLVING TURNING THE UNIT OVER. • IF HEATER WIRES HAVE NON-BRAIDED INSULATION, THE HEATER IS NOT A CAST HEATER. CONTACT ACCUTEMP SERVICE AT 800-480-0415. • USE THE INCLUDED CAST HEATER REPLACEMENT KIT INSTRUCTION BOOKLET IN CONJUNCTION WITH THE REMOVAL & INSTALLATION PROCEDURES IN THIS MANUAL.
- Page 30 If Heater Studs are Discovered Broken While Removing the Cast Heater If a Heater Stud Breaks-Off While Removing or Installing the Cast Heater Call AccuTemp Service Dept (800) 480-0415. CAST HEATER (CON’T) 10. Using Fig G, loosen all 24 nuts by starting with Nut #24 and working down to #1.
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Page 31: Cast Heater Installation Notes & Cautions
CAST HEATER INSTALLATION NOTES & CAUTIONS NOTE CAST HEATER’S SHINY SIDE FACES THE BOTTOM OF THE STEAMER! Using a Paint Brush, Apply Thermal Paste to the Shiny Side of the Cast Heater. Bellevelle Washers should look like mini-volcanos when placed on heater stud. The HEX Locking Nut Needs to be Torqued Between 23 - 27 IN-LBS. -
Page 32: Miscellaneous Components Removal & Installation
MISCELLANEOUS COMPONENTS REMOVAL & INSTALLATION AUTO-FILL VALVE Unplug the Unit & drain any remaining water from the steam chamber. Close the supply water valve and disconnect the Supply Water Hose coming into the steamer. Remove the Left-Side Panel by removing the Sheet Metal Screws holding it in place. -
Page 33: Float Ball (Magnetic)
MISCELLANEOUS COMPONENTS REMOVAL & INSTALLATION FLOAT BALL (MAGNETIC) Open the steamer Door and remove the left- side pan rail. Lift and remove the steam collection cover plate. Remove the Float Ball off of the High Water Reed Switch Sensor Post. Re-install in reverse order. -
Page 34: Door Components Removal & Installation
DOOR COMPONENTS REMOVAL & INSTALLATION DOOR ASSEMBLY Fig K Fig J Unplug the unit and shut the Door. Fig J Remove the Hinge Covers. Remove the 3 hinge screws going into the face of the steamer of the Bottom Hinge. Fig K While supporting the Door on the hinge-side, remove the 3 hinge screws into the face of the steamer of the Top Hinge. -
Page 35: Door Handle Latch Assembly
DOOR COMPONENTS REMOVAL & INSTALLATION DOOR HANDLE LATCH ASSEMBLY Unplug the unit & shut the Door. Remove the Hinge Covers. Fig J Remove the very bottom screw on the door hinge-side of the Bottom Hinge & remove the very top screw on the door-side hinge of the Top Hinge. -
Page 36: Door Gasket
DOOR COMPONENTS REMOVAL & INSTALLATION DOOR GASKET Unplug the unit & shut the Door. Fig J Remove the Hinge Covers. Remove the very bottom screw on the door hinge-side of the Bottom Hinge & remove the very top screw on the door-side hinge of the Top Hinge. -
Page 37: Electrical Schematic At1T-3595 Rev G (208-240V/ 1Φ)
ELECTRIC EVOLUTION WIRING SCHEMATIC (208-240V/ 1Φ) SP8027-1203 Pg 30... -
Page 38: Electrical Schematic At1T-3595 Rev G (208-240V/ 3Φ)
ELECTRIC EVOLUTION WIRING SCHEMATIC (208-240V/ 3Φ) SP8027-1203 Pg 31... -
Page 39: Electrical Schematic At1T-3595 Rev G (208-240V/ 3Φ/ 17Kw)
ELECTRIC EVOLUTION WIRING SCHEMATIC (208V/ 3Φ/ 17KW) SP8027-1203 Pg 32... -
Page 40: Electrical Schematic At1T-3595 Rev G (440-480V/ 3Φ)
ELECTRIC EVOLUTION WIRING SCHEMATIC (440-480V/ 3Φ) SP8027-1203 Pg 33...
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