Thermoglaze Model TG 50 Operator’s Manual For Serial Number W04060001 on Belshaw Bros., Inc. 1750 22nd Avenue South Seattle, WA 98144-4590 Phone: (206) 322-5474 • Fax: (206) 322-5425 Toll Free: 1-800-578-2547 Email: service@belshaw.com • http://www.belshaw.
Congratulations on buying a new Thermoglaze from Belshaw Bros., Inc. Please inspect the unit carefully for damage or missing pieces immediately after receiving your system. Belshaw cannot pay for shipping damage, because the freight company has accepted the machine from Belshaw in good condition, and is responsible for its safe delivery.
Contents 1 Unloading and Uncrating 1 2 Identification 2 3 Installation 4 4 Assembly 5 5 Operation 8 6 Cleaning 9 7 Maintenance 22 8 Troubleshooting 23 9 Appendix 27 Belshaw Bros., Inc. • 1750 22nd Ave. S.
Preface The operator of the Thermoglaze is expected to behave safely, read this manual before operation, and follow its instructions and warnings. Study the instructions and warnings in this manual carefully before operating the equipment. A thorough understanding of how to install, maintain, and safely operate the Thermoglaze will prevent production delays and injuries.
1 Unloading and Uncrating Do not connect the Thermoglaze or the Thermolizer to electrical power before completing the assembly and placement of the products. DO NOT LIFT EXCESSIVE WEIGHT Once the crate has been delivered, immediately take the covers off the crate and inspect for hidden damage. If damage is found, please see the above information to make a damage claim to the shipping company. After inspection, cut the banding and remove any other restrains from the Thermoglaze unit.
Identification 2 This information is key to identification for service or ordering parts on the ThermoGlaze. When servicing the equipment, please have the Model and serial number so the technician can order the correct parts for you. To identify which Thermoglaze system you have, please use the following model number key: THERMOGLAZE DESCRIPTION KEY Model No: - Doz/hr: - Glaze Pump: TG Opt.
Part No. Description Key Drawings 22120 TG-25-GD-220/240-60-1-D JR.
Installation 3 Venting: WARNING To avoid electrocuting yourself or damaging the Thermoglaze, never allow water, steam, cleaning solution, or other liquid to enter the electrical panels or connections Electrical: Model Dimensions Power Requirements TG21586 88"L x 40W x 63"H See data tag Local codes prevail. The authorities having jurisdiction are stated in NFPA 96-1994 regarding requirements for the Thermoglaze.
Assembly 4 Clean all parts with mild soap and water and let dry before assembly and applying electrical power to the equipment. The Thermoglaze unit is design for ease of assembly and use. The system is crated in a manner so there are few pieces to put together once the Thermoglaze is in place for production. After unpacking the system per the uncrating instructions, 2 items need to be placed on the Thermoglaze to finish assembly, the glaze trough and the heat shield.
Transfer Conveyor Assembly Figure 4-2 Infeed – Left hand view. Figure 4-3 Swing away glaze trough. (Optional) Figure 4-4 Right Hand View: Belshaw Bros., Inc. • 1750 22nd Ave. S.
Figure 4-5 Control Panel View: The Thermoglaze system consists of a Thermoglaze unit and the Thermolizer. They are placed in unison in the area located for the production of donuts. See Figure 4-6 for Thermoglaze system. Figure 4-6 Thermoglaze System. Belshaw Bros., Inc. • 1750 22nd Ave. S.
Operation • 5 Turn on main power switch and allow to heat to operating temperature. (Note: conveyor will not move until the oven is up to operating temperature and the donut ready light is on. See Figure 5-1.) using the on switch located on the main control panel. • After the donuts are thawed, place a screen of donuts from Thermolizer box to the infeed end of the Thermoglaze conveyor and allow the screen to travel through the oven and glazer. This takes approximately 3 minutes.
Cleaning 6 Daily TG Cleaning Instructions Disassembly 1. Allow the Thermoglaze to completely cool. (All material must under 130º) 2. Pump the unused glaze back into a bucket. 3. Disconnect the TG from power! 4. Remove the glaze trough. 7. Remove the oven heat shield. 5. Remove the drive belt. 8. Disconnect the conveyor drive coupling. 6. Remove the glazer drain tray. Belshaw Bros., Inc. • 1750 22nd Ave. S.
9. Remove the conveyor assembly through the outfeed end of the oven. 10. Turn the end cover latches counterclockwise. 11. Remove the end covers. 12. Lift up on the outfeed upper finger housing and slide it to the rear of the oven disengaging it from the mounting bracket. 13. Lower the end of the finger assembly. 14. Pull the finger assembly off the duct on the back of the oven and remove it. Belshaw Bros., Inc. • 1750 22nd Ave. S.
15. Lift up on the outfeed lower finger assembly and remove it. 18. Remove the infeed upper finger assembly. 19. Remove the infeed finger assembly. 16. Lift up on the infeed upper finger assembly. 17. Slide the infeed upper finger assembly to the rear of the oven. 20. Lift up on the outside end of the upper air duct panel. Belshaw Bros., Inc. • 1750 22nd Ave. S.
21. Remove the upper air duct panel 24. Remove the oven crumb tray 22. Lift up on the outside end of the lower air duct panel. 25. Oven with all parts removed. 23. Remove the lower air duct panel. 26. Insert flat tip screwdriver into finger assembly if it cannot be removed by hand. Belshaw Bros., Inc. • 1750 22nd Ave. S.
27. Remove the finger cover. 30. Remove the lower glaze hose clamp and gasket. 28. Remove the columnating plate. 31. Remove the upper pump clamp. 29. Loosen the lower glaze hose clamp. 32. Lift the glaze reservoir and remove the gasket Belshaw Bros., Inc. • 1750 22nd Ave. S.
33. Remove the glaze reservoir and hose. 36. Remove the glaze pump cover and “O” ring. 34. Remove the drip pan. 37. Remove the glaze pump body. 35. Remove unscrew the 4 glaze pump cover wing nuts. 38. Insert a flat tip screw driver into the slot to loosen the pump body if it can not be removed by hand. Belshaw Bros., Inc. • 1750 22nd Ave. S.
39. Remove the pump body and impellers. 40. Remove the impellers from the pump body. Belshaw Bros., Inc. • 1750 22nd Ave. S.
Cleaning 1. Hand wash all parts of the oven and glazer with warm soapy water. 2. Do not use caustic cleaners on oven parts. 3. You may use an approved oven cleaner on the stainless steel finger cover only. (see step 27 of Disassembly) 4. Do not use oven cleaner on any other part of the oven or glazer! 5. Do not hose/spray down any part of this machine. 2. Install the drive gear impeller. Line up the flat on the shaft with the flat in the impeller. 6. Glaze pump body and parts. 3.
5. Install the 4 wing nuts finger tight. 8. Install the upper clamp. 6. Set the upper gasket on top of the glaze pump. 9. Install the lower gasket, hose and clamp. 10. Install the columnating plates. 7. Install the drip pan and glaze reservoir. Belshaw Bros., Inc. • 1750 22nd Ave. S.
11. Install the finger covers. 14. Install the upper air panel assembly. 12. Install the oven crumb tray. 15. Install the lower infeed finger assembly. 13. Install the lower air duct panel. 16. Install the upper infeed finger assembly by slipping it over the duct on the back of the oven. Belshaw Bros., Inc. • 1750 22nd Ave. S.
17. Then lift it up, slide it to the front of the oven and hook it on the brackets. 20. Install the infeed end cover by lining up the slots at the bottom of the end cover with the brackets on the oven and push in on the latches and turn clock wise. 18. Install the lower outfeed finger assembly. 21. Install the outfeed end cover same as the infeed. 19. Install the upper outfeed finger assembly. 22. Insert the conveyor through the outfeed end of the oven. Belshaw Bros., Inc. • 1750 22nd Ave. S.
23. Pull the drive coupling back and line it up with the conveyor drive shaft. 26. Install the glaze drain tray. 27. Connect the drive belt. 24. Install the glaze reservoir cover 28. Set the heat shield on top of the oven. 25. Glaze reservoir installed. Belshaw Bros., Inc. • 1750 22nd Ave. S.
29. Slide the heat shield over the oven. Belshaw Bros., Inc. • 1750 22nd Ave. S.
Maintenance 7 The ThermoGlaze is engineered to need little maintenance. By keeping the system clean, the equipment will last for years. The only maintenance that is required is the following: When cleaning the donut system, check all rubber gaskets for wear and replace when necessary. Check for wear on impellers of the glaze pump, replace when necessary. . DO NOT spray machine with water or cleaning agents to clean. Only wipe main unit off with damp cloth. Belshaw Bros., Inc. • 1750 22nd Ave. S.
Troubleshooting Call Belshaw Bros. at (206)322-5474, or (800) 578-2547. One of our customer support representatives will be happy to help you. When you call, please specify the following: • The model name of the machine. • The serial number of the machine. • The voltage, phase, and hertz (cycle) of the machine. This information can be found on the small, rectangular data tag/plate. 8 Following is a troubleshooting chart to help you identify and solve some basic problems.
CONVEYOR WILL NOT MOVE Possible Causes What To Do Oven not to correct temperature yet. Wait until the oven comes to temp.and the ready light comes on. Conveyor is jammed. Check for obstruction in conveyor and remove. Motor circuit breaker is tripped. Push the black circuit breaker reset at bottom of oven control panel. GLAZER WILL NOT PUMP GLAZE Glazer motor is not running. Check to make sure the motor is running. (See Pump Motor Will Not Run) Glazer pump impellers are worn. 1. Disconnect power.
THE PUMP MOTOR WILL NOT RUN Possible Causes What To Do The connection of the power cord to the power source is faulty. Make sure the power cord is fully plugged in to a proper power source. The circuit breaker has been tripped. 1. 2. 3. 4. Disconnect from power. Open electrical enclosure. Reset circuit breaker. Close electrical enclosure. THE FILL HOSE IS LEAKING Possible Causes What To Do Fill hose is leaking at the connection. Hose bracket needs adjusting or tightening.
Calibration Procedure for Temperature and Cook Time on the Thermoglaze Model TG50 Turn off power to the TG50 before removing any access covers. This procedure should be performed only by qualified service technicians. Remove the electrical box cover on the oven to access the temperature and speed control adjustment potentiometers. The following is a photo of the location of the adjustment potentiometers for the temperature and cooking time for the Belshaw TG50 Thermoglaze.
Appendix 9 Final Assembly Drawing TNG-2011 Parts Diagrams TNGG-1008 TNGG-0526 TNGG-1009 TNGV-2004 Wiring Diagram TNG-4008 Maintenance Appendix for ThermoGlaze Oven Service Kit Parts List Belshaw Bros., Inc. • 1750 22nd Ave. S.
TNG-2011. THERMOGLAZE ASSEMBLY Belshaw Bros., Inc. • 1750 22nd Ave. S.
TNG-2011. THERMOGLAZE ASSEMBLY Belshaw Bros., Inc. • 1750 22nd Ave. S.
TNG-2011. THERMOGLAZE ASSEMBLY Belshaw Bros., Inc. • 1750 22nd Ave. S.
TNG-2011. THERMOGLAZE ASSEMBLY Belshaw Bros., Inc. • 1750 22nd Ave. S.
TNG-2011. THERMOGLAZE ASSEMBLY Belshaw Bros., Inc. • 1750 22nd Ave. S.
Belshaw Bros., Inc. • 1750 22nd Ave. S.
Belshaw Bros., Inc. • 1750 22nd Ave. S.
Belshaw Bros., Inc. • 1750 22nd Ave. S.
Belshaw Bros., Inc. • 1750 22nd Ave. S.
Belshaw Bros., Inc. • 1750 22nd Ave. S.
SK-1258 R5 REC.
TROUBLESHOOTING GUIDE IMPINGER CTI SYMPTOM Oven fan will not run POSSIBLE CAUSE Incoming Power Supply Oven Fan Fuses, 5 Amp Fuse Holder High Limit Thermostat Control Box (Note: High Limit not used in ovens S/N 3000352) Fan Switch 20 Minute Time Delay Main Fan Relay Fan Motor Capacitor No main fan cool down 20-Minute Timer Main fan continues to run after cool down 20 Minute Timer No control box cooling Fan Switch 20 Minute Timer Cooling Fan November 1999 31 EVALUATION Check breakers, reset if requ
Oven will not heat Main Oven Fan Temperature Control Board Thermocouple Sensor Temperature Set Potentiometer Hi Limit ThermostatOven Cavity Air Pressure Switch Heating Element Relay Heater Element November 1999 32 Check if main oven fan is working. If not, refer to "Oven Fan Will Not Run". Check for voltage input at the board. Turn the temperature adjustment knob to the maximum temperature position and check for voltage at the load terminal.
Conveyor will not run S/N 4000480 and Below Fan Switch Conveyor Control Transformer Speed Adjustment Potentiometer Conveyor Control Board Conveyor Gear Motor Conveyor Conveyor speed varying or intermittent Power Supply Transformer Conveyor Control D.C. Gearmotor November 1999 33 Check continuity between switch terminals. Replace as needed. Check for supply voltage at primary of transformer. If no voltage is present, trace wiring back to fan switch. Check for 24VAC at transformer secondary.
Conveyor will not run (S/N 3000481 & Above) Fan Switch Conveyor Control Transformer Speed Adjustment Pot Conveyor Control Board Conveyor Gear Motor Conveyor Conveyor speed varying or intermittent Power Supply Transformer Conveyor Control D.C. Gearmotor Magnet Hall Effect Sensor November 1999 34 WITH POWER OFF: Check continuity between switch terminals. Check and insure good wire connections. With the fan switch on, check for supply voltage at the primary of the transformer.
REMOVAL, INSTALLATION, AND ADJUSTMENT MODEL SERIES 1300 CAUTION! BEFORE REMOVING OR INSTALLING ANY COMPONENT IN THE IMPINGER OVEN BE SURE TO DISCONNECT ELECTRICAL POWER SUPPLY SWITCH, ON-OFF 1. 2. 3. 4. 5. Remove conveyor and oven side panels. Remove two (2) screws from ends of control panel and remove panel. Disconnect four (4) wires from switch assembly. Mark wires for reinstallation. Depress clips on side of switch and remove from panel. Reassemble in reverse order and check operation.
THERMOSTAT, OVEN CAVITY HI-LIMIT 1. 2. 3. 4. 5. Remove control box cover. Remove oven back assembly. (See OVEN BACK) Remove two (2) wires from thermostat. Remove retaining nut from the front of thermostat and remove thermostat. Remove capillary tube from wire form in back of oven and remove assembly out through control box side. 6. Reassemble in reverse order. Check for proper routing through insulation.
MAIN FAN RELAY 1. 2. 3. 4. Remove control box cover Remove wires from relay and mark wires for reinstallation. Remove two (2) screws and replace relay. Reassemble in reverse order and check operation. TIME DELAY RELAY 1. Remove control box cover. 2. Remove wires from relay and mark wires for reinstallation.
ASSEMBLY OF MAGNET TO MOTOR FOR OVENS WITH 1-12 MINUTE CONVEYOR DRIVE SYSTEM 1. Apply 1 or 2 drops of adhesive (supplied) to magnet. Mount magnet on motor shaft. Be sure to keep adhesive away from motor bearings. Note: Use magnet marked "8" FOR OVENS WITH 1-24 MINUTE CONVEYOR DRIVE SYSTEM 1. Apply 1 or 2 drops of adhesive (supplied) to magnet. Mount magnet on motor shaft. Be sure to keep adhesive away from motor bearing. Note: Use magnet marked "16" CONVEYOR CONTROL BOARD - REPLACEMENT 1. 2. 3. 4. 5.
177C/350F 240C/400F 450F/232C 149C/300F 121C/250F 500F/260C 93C/200F 550F/288C CALIBRATION MARK TEMPERATURE CONTROL BOARD 5. Turn the temperature control knob to 500°F (260°C) and calibrate the temperature control board. Adjust the top potentiometer only (see diagram Pg. D5) so the unit cycles at 500°F ± 10°F (490°F 510°F). 6. Turn the temperature control knob to 550°F and verify that the oven will cycle at 550°F (288°C) ± 10°F. 7. Replace the control box cover and check operation.
COOLING FAN, CONTROL BOX 1. 2. 3. 4. 5. Remove control box cover. Remove four (4) screws. Lift off fan guard and finger guard. Disconnect two wires and replace fan. Reassemble in reverse order and check operation. NOTE: Check to insure that control box high limit switch is not tripped. Reset if needed. CAPACITOR, MOTOR 1. Remove six (6) acorn nuts from motor cover and remove. CAUTION: DISCHARGE CAPACITOR BEFORE REMOVING. 2. Remove wires from capacitor and mark wires for reinstallation. 3.
THERMOCOUPLE 1. 2. 3. 4. 5. Remove control box cover. Remove six (6) acorn nuts holding motor cover and remove. Remove four (4) acorn nuts holding oven back assembly and remove oven back. Remove thermocouple bulb from wire form in rear of oven cavity. Disconnect and mark wires from temperature control board (red=neg., white=pos.) and remove thermocouple. 6. Reassemble in reverse order and check operation. NOTE: Be certain to replace insulation seal each time oven back is removed.
HEATING ELEMENT (Color Coded on the Cold Zone) PART# 369418 PART# 369419 PART# 369450 PART# 369455 PART# 369456 PART# 369457 PART# 369475 PART# 369476 PART# 369477 PART# 370104 PART# 370105 1. 2. 3. 4. 5.
GENERAL – 1300 SERIES LETTER A B C D E F G H I J K L M N O P Q R S T U V W X Y Z AA BB CC DD EE FF GG HH JJ KK LL MM NN OO November 1999 P/N 369434 369442 369436 369445 369441 369439 369435 369438 369444 369446 369437 369916 369484 369407 369447 369953 369460 369410 370106 350259 369413 369373 369461 369945 369429 369432 369449 369433 369468 350224 369448 369467 369495 369211 369451 369491 369490 369488 369932 370096 370018 370095 370097 DESCRIPTION Air Duct Panel, Upper Finger Housing S/N 3002167 & Belo
GENERAL – 1300 SERIES PARTS BLOW-UP November 1999 44 COUNTER TOP IMPINGER
CONTROL COMPARTMENT – 1300 SERIES LETTER A B C P/N 369426 369378 369428 369331 369415 369464 370017 D E F G H I J K L M N O P Q R S T U V W X Y Z AA BB CC DD EE November 1999 369431 369430 369422 369417 369425 369479 369427 370241 369416 369465 369129 369424 369923 369466 369841 369154 357067 369483 369482 369822 370065 369823 369421 370100 370040 370099 369414 370019 369536 369085 369376 369584 369698 369856 357107 369492 369131 DESCRIPTION Cooling Fan – S/N 3000399 & Below Cooling Fan – S/N 3000400
CONTROL COMPARTMENT – 1300 SERIES BLOW - UP November 1999 46 COUNTER TOP IMPINGER
BACK – 1300 SERIES LETTER P/N A 369418 369419 369450 369455 369456 370105 369457 369475 369476 370104 369477 369409 369408 369440 369192 369457 370041 370020 370102 369453 369423 369485 370179 369480 369940 370093 369474 369936 369473 369935 369470 369497 369496 369459 B C D E F G H I J K L M N O P Q R S T U November 1999 DESCRIPTION Color Coded on The Cold Zone Heating Element - 208V Red Heating Element - 240V Blue Heating Element - 220V Yellow Heating Element - 200V Orange Heating Element - 380V Vi
BACK – 1300 SERIES BLOW - UP November 1999 48 COUNTER TOP IMPINGER
STANDARD CONVEYOR – 1300 SERIES LETTER A B C D E F G H I J November 1999 P/N 369443 369462 369515 369516 369463 369471 1343 1344 369412 369411 370185 1341 1342 370094 DESCRIPTION Standard Complete Conveyor Assy.
EXTENDED CONVEYOR – 1300 SERIES LETTER A B C D E F G H I J K L M N November 1999 P/N 369909 369462 369515 369516 369463 369471 369943 369412 369481 370185 369920 369921 369954 369922 1345 369489 DESCRIPTION Extended Conveyor Assy.