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Oryx sca3600 Repair Manual

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Repair Manual
Oryx Additive Inc.
7755 S. Research Drive Tempe Ste. 120
Tempe, AZ 85284
1.833.817.3533
www.OryxAdditive.com
info@OryxAdditive.com
support@OryxAdditive.com
Rev 1.3
June 9, 2022
1

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  • Page 1 Repair Manual Oryx Additive Inc. 7755 S. Research Drive Tempe Ste. 120 Tempe, AZ 85284 1.833.817.3533 www.OryxAdditive.com info@OryxAdditive.com support@OryxAdditive.com Rev 1.3 June 9, 2022...

  • Page 2: Table Of Contents

    Table of Contents PRELIMINARY STEPS ..................- 4 - II. QUICK TROUBLESHOOTING ................- 5 - III. REMOVING TOP COVER AND BACK PANEL ............- 9 - A. H ....................... - 9 - OW TO EMOVE THE ANEL B. H ......................
  • Page 3 XII. TROUBLESHOOTING STEPS ................- 26 - A. P ......................... - 27 - ROUBLESHOOTING B. H ....................- 32 - EATING LEMENT ROUBLESHOOTING C. T ................... - 35 - EMPERATURE ENSOR ROUBLESHOOTING D. W ................... - 36 - ATER EVEL ENSOR ROUBLESHOOTING E.

  • Page 4: Preliminary Steps

    I. Preliminary Steps Follow these steps before attempting to service the SCA Power off and disconnect the SCA from the main power. Allow the SCA to cool completely. Attach a hose to the front valve and drain the tank completely Always disconnect the SCA from the main power and drain the tank completely before servicing.

  • Page 5: Quick Troubleshooting

    II. Quick Troubleshooting The SCA has been designed to allow the end user to resolve most operating problems. When a problem is encountered, please read through this repair manual. If a resolution is not found in this manual, please contact technical support. High Risk of Electrical Shock Always disconnect the unit from power before removing any cover!
  • Page 6 Probable Problem What to Do Causes Pump will not Timer has not The system will only run when the timer is counting down. Check start, SCA is been set and the timer display on the control panel. powered up, started If it is not counting down, press the button.
  • Page 7 Probable Problem What to Do Causes Warning Indicator Liquid level is Check the indicator lights on the right side of the display control too high or too panel. If either level indicator is on, add or remove water from the Flashing tank until the indicator turns off.
  • Page 8 Probable Problem What to Do Causes Warning Indicator Internal Error Sensor failure, power supply failure, or pump failure. (See Error Codes Section XIII A). Flashing Error Codes: Error Code *EP = Pump motor current fault Displayed *EH = Heater current fault ES = 12VDC out of range, power supply error EO = Over temperature r1 = Temperature sensor failure...

  • Page 9: Removing Top Cover And Back Panel

    III. Removing Top Cover and Back Panel A. How to Remove the Back Panel 1. Remove the Back Panel a. With the SCA unplugged from power, remove the two screws on the top, center, and bottom of the panel. b. Loosen the remaining six M4 screws holding the back panel. c.

  • Page 10: How To Remove The Top Cover

    B. How to Remove the Top Cover 1. Remove the Top Cover a. With the SCA unplugged from power, remove the J6 display ribbon cable from the PCB. b. Remove the three M5 screws. c. Remove the cover by pushing lightly on the back of the cover. J6 Connector PCB Figure 2 –...

  • Page 11: Pump Assembly Replacement

    IV. Pump Assembly Replacement A. How to remove the Pump Assembly Remove the Pump Assembly a) Unplug the SCA from power and remove the back panel (See How to Remove the Back Panel Section III A). b) Remove the top cover (See How to Remove the Top Cover Section III B). c) Disconnect the pump motor connector from the PCB Assembly.

  • Page 12: How To Install The Pump Assembly

    NOTE M5 Screws (4 places) The tray gasket may cause the pump assembly to stick to the bridge. If this happens, loosen the gasket by gently rocking the assembly back and forth. Figure 4 - Remove the Screws and Remove the Pump Assembly j) Grip the pump assembly by the motor and carefully guide the pump assembly through the hole in the bridge until the tray is seated on the gasket on top of the bridge.

  • Page 13: Sensor Assembly Replacement

    V. Sensor Assembly Replacement A. How to Remove the Sensor Assembly Remove the Sensor Assembly a) Remove the back panel (See How to Remove the Back Panel Section III A). b) Remove the top cover (See How to Remove the Top Cover Section III B). c) Unplug the three sensor connectors from the PCB.

  • Page 14: How To Install The Sensor Assembly

    NOTE : The gasket is attached to the Sensor Assembly. Figure 6 - Remove Sensor Assembly B. How to install the Sensor Assembly Install the Sensor Assembly Insert the Sensor Assembly into the motor tray. Mount the Sensor Assembly using the four M5 screws. Carefully thread sensor wires through the bridge.

  • Page 15: Spray Nozzle Replacement

    VI. Spray Nozzle Replacement A. How to Replace the Nozzle Replace the Nozzle a) The 3600 has a Bayonet style nozzle that latches on to the pump output opening. Twist the nozzle counter-clockwise to unlatch and clockwise to latch. Ensure the nozzle is tightly sealed on the gasket and that it is correctly orientated (See Figure 8).

  • Page 16: Heater Assembly Replacement

    VII. Heater Assembly Replacement A. How to Remove the Heater Assembly Remove the Heater Assembly a) Unplug the SCA from power and remove the back panel (See How to Remove the Back Panel Section III A). g) Remove the top cover (See How to Remove the Top Cover Section III B). SHOCK HAZARD! PLEASE ENSURE POWER PLUG IS REMOVED FROM THE SCA.
  • Page 17 ALLOW THE HEATING ELEMENT FOR COMPLETELY COOL BEFORE REMOVING. e) Carefully remove the Heater Assembly from SCA M5 Screws (4 places) Figure 10 - Top View of the SCA with the Top Cover Removed Figure 11 - Remove the Heater Assembly...

  • Page 18: How To Install The Heater Assembly

    B. How to Install the Heater Assembly Install the Heater Assembly a) Carefully guide the Heater Assembly through the hole in the Bridge until the plate is seated on the gasket on top of the bridge. b) Mount the Heater Assembly to the Bridge using the four M5 mounting screws and attach the ground wire to the tray.

  • Page 19: Display Control Panel Replacement

    VIII. Display Control Panel Replacement A. How to Remove the Display Control Panel Remove the Display Control Panel a) Unplug the SCA from power and remove the back panel (See How to Remove the Back Panel Section III A). b) Remove the top cover (See How to Remove the Top Cover Section III B). c) Disconnect the display ribbon cable from the PCB.

  • Page 20: How To Install The Display Control Panel

    B. How to Install the Display Control Panel Install the Display Control Panel a) Thread the ribbon cable through the hole on the front of the top cover where the display will be mounted. b) Check the orientation of the display and proceed to press the display into the top cover. c) Turn cover over and secure the display with the six M4 screws d) Place the two supports over the posts and mount the supports to the post using the four M5 screws.

  • Page 21: Pcb Assembly Replacement

    VIIII. PCB Assembly Replacement A. How to Remove the PCB Assembly 1. Remove the PCB Assembly a) Remove back panel (See How to Remove the Back Panel Section III A). b) Check the wires to make sure the labels are on the wires connected to the PCB. c) Remove all the wire connectors from the PCB, be careful not to rip off a wire label.

  • Page 22: How To Install The Pcb Assembly

    Figure 14 - PCB B. How to Install the PCB Assembly Install the PCB Assembly a) Slide the PCB in at an angle as you guide the board onto the supports for the board. Make sure not to damage any wires as you place the board. Make sure no wires get behind the board as you place it.

  • Page 23: Power Switch Replacement

    X. Power Switch Replacement A. How to Remove the Power Entry Module (PEM) Switch Remove the PEM a) Remove the back panel (See How to Remove the Back Panel Section III A). b) Disconnect the PEM wire connectors from the fuses. PEM connections Figure 15 –...

  • Page 24: How To Install The Power Entry Module (Pem) Switch

    B. How to Install the Power Entry Module (PEM) Switch Install the PEM a) Press the switch back into the case and secure with the two M3 screws. b) Connect the wires from the switch and secure the ground wire with the M3 screw. c) Place the back panel on SCA and secure (See How to Remove the Back Panel Section III A).

  • Page 25: Fuse Replacement

    XI. Fuse Replacement A. How to Replace the Fuses Replace the F1/F2 Fuse a) Remove the back panel (See How to Remove the Back Panel Section III A). b) Pull fuse out of the clips. c) Replace the damaged fuse with a new fuse of the same rating. 2.

  • Page 26: Troubleshooting Steps

    XII. Troubleshooting Steps NOTE: The symbol “ ” prefixing the measured value denotes “approximate”. Most measurements will not be completely accurate with the values represented in this manual, but the SCA will function normally. Usually, measurements that are extremely different from the indicated measurements will represent a possible failure in the component.

  • Page 27: Pump Troubleshooting

    A. Pump Troubleshooting Tools Needed: Multimeter Test Hooks .7mm Test Probes Phillips Screwdriver Symptom Pump Inoperable Theory: 230V AC motor that circulates the water from the intake at the bottom of The pump is a the pump out the nozzle using an impeller attached to the motor shaft. Steps: 1.
  • Page 28 If the pump values are extremely different from the indicated values, or are open or shorted, replace the pump (See Pump Assembly Replacement Section IV). 2. Test the Input Voltage to the Pump Motor With the power off, unplug the motor connector (J4) from the PCB. Attach test hook leads between pins 1 and 3 (See Figure 19).
  • Page 29 d. If both voltages are not present when the pump motor is enabled, check to ensure the Display Controller is sending the signal to turn on the pump (See Check the Motor Enable Signal Section XII A). 3. Test the Pump Motor Run Capacitor The 1.5 µF (micro Farad) run capacitor gives the pump an extra punch to get the pump rotating correctly and in the right direction, as well as supplies half the voltage to keep the pump rotating at the proper speed.
  • Page 30 Figure 21 – Pump Motor Enable Signal If there is ~12V DC between pins TP10 and R5 when the pump motor is enabled, and there is no voltage across pins 1 and 3 and pins 2 and 4 at the J4 pump connector on the PCB, replace the PCB.
  • Page 31 Figure 22 - Pump Screen and Nozzle Rotate the pump motor shaft by rolling a finger across it. It should rotate extremely easy. There should be no binds or rough rotation. If there is a bind in the rotation of the pump, replace the pump.

  • Page 32: Heating Element Troubleshooting

    B. Heating Element Troubleshooting Tools Needed: Multimeter Phillips Screwdriver Symptom Not Heating or Not Heating Normally Theory: The heating element has an internal resistance that creates heat when current flows through. When submerged in water, the heat is transferred to the water. Steps: Heater Element Resistance Test Remove power from the SCA.
  • Page 33 Figure 23 – Heater Voltage and Resistance Heating Element Control Signal Test a. Check the voltage between TP10 (DC Ground) and resistor R3 (See Figure 24). b. Power on, with the start button not pressed (pump motor not enabled). i. Pins TP10 → R3: Low (~0 VDC). ii.
  • Page 34 Figure 24 – Motor Enable Signal d. If there is ~12V DC between TP10 and R3 when the heat setting is activated and pump motor is enabled, and there is no there is no voltage across the outside pins of both heating elements, replace the PCB.

  • Page 35: Temperature Sensor Troubleshooting

    C. Temperature Sensor Troubleshooting Tools Needed: Multimeter Philips Screwdriver .7mm Test Probes Symptom Not heating at all or inconsistently, Theory: The temperature sensor changes resistance according to the temperature of the water. As the temperature increases, the resistance of the sensor decreases. Steps: Ohm out the Temperature Sensor a.

  • Page 36: Water Level Sensor Troubleshooting

    D. Water Level Sensor Troubleshooting Tools Needed: Multimeter Philips Screwdriver .7mm Test Probes Symptom SCA beeping, high or low water LED flashing on control panel. Theory: The float sensor uses two internal switches within a hollow rod straddled by a watertight stainless-steel float that slides along the rod as the water level changes (See Figure 26).

  • Page 37: N Opower To Sca Troubleshooting

    E. No Power to SCA Troubleshooting Tools Needed: Multimeter Phillips Screwdriver Symptom SCA Appears to have no power Theory: The SCA requires 220VAC (US) or 230VAC (Europe) +/- 10%. For US power, the input power requires single phase, 60 Hz., 2-110VAC lines and a ground. The 2 -110VAC lines combine to create 220VAC, but are phase shifted, which creates the 208VAC seen at the outlet.
  • Page 38 ii.If no voltage is present at the output of the power cord, check the power at the outlet. If there is no power at the outlet, check the building’s circuit breakers. iii.If there is voltage at the outlet and no voltage at the output of the power cord, ohm out the power cord and replace if needed.
  • Page 39 3. Check the Continuity of the PEM a. Unplug the power cord to the SCA. i.Attach one lead of the multimeter to Pin 1 of the J1 connector (brown wire) and the other lead to L1 (top right prong on the input to the PEM) (See Figure 29). 1.
  • Page 40 i.Power up the SCA. If the fuse blows again with the pump and heaters disconnected from the PCB, replace the PCB. ii.Plug the connectors to the PCB one at a time until the fuse blows. This can isolate which component is blowing the fuse. Troubleshoot the component that blows the fuse.

  • Page 41: N Opower To Display Troubleshooting

    F. No Power to Display Troubleshooting Tools Needed: Multimeter Phillips Screwdriver Symptom SCA display appears to have no power upon plugging in to power and pressing the power switch. Theory: The display requires ~12 VDC from the PCB to operate. The display controller performs all error checks.

  • Page 42: Documentation

    XIII. Documentation A. Error Codes Pump-motor (See Pump and Transformer Troubleshooting Section XII A). malfunction/pump motor current fault. Heater current fault (See Heater Element Troubleshooting Section XII B). 12VDC out of range, (See No Power to Display Troubleshooting Section XII E). power supply error for display Over temperature...

  • Page 43: Schematics

    B. Schematics Physical Layout of PCB...
  • Page 44 Electronic Schematics...

  • Page 45: Pcb Layout

    C. PCB Layout PCB (Printed Circuit Board)

  • Page 46: J6 Display Controller Pinout

    D. J6 Display Controller Pinout • → ~ 0V DC • → ~ High 12V DC Description High Water Level High Sensing No Fault Fault Water Level Low Sensing No Fault Fault Temperature Sensing No Fault Fault Display VCC ~12V DC Power Off Power On Heater Malfunction Sensing...

  • Page 47: Commonly Used Parts

    E. Commonly Used Parts Commonly Used Parts Part Image Part Description Number Pump subassembly repair kit, SCA 3600 100006 Power Entry Module (PEM) 100129 Heater Assembly, SCA 3600,220VAC Heaters 100007 Sensor Assembly for SCA 3600 100078 Thermal Cutoff Switch (TCO) 100070 Nozzle 100130...
  • Page 48 Start Capacitor 100104 Printed Circuit Board (PCB) 100065 Display Controller 100128 F1/F2 Fuse, Fast-acting, 25A, 6.3mm x 32mm, 250V 100123 FB1/FB2 Fuse, slo-blow, 1A, 250V 100106 Power cord, 250VAC, 16A NA SCA 3600 100108 Power cord, 250VAC, 16A, EU for SCA 3600 100107...

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