Oryx SCA1200ht Repair Manual
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Oryx SCA1200ht Repair Manual

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Repair Manual
Oryx Additive Inc.
7755 S. Research Drive Ste. 120
Tempe, AZ 85284
1.833.817.3533
www.OryxAdditive.com
info@OryxAdditive.com
support@OryxAdditive.com
Rev 2.9
June 23, 2022
1

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  • Page 1 Repair Manual Oryx Additive Inc. 7755 S. Research Drive Ste. 120 Tempe, AZ 85284 1.833.817.3533 www.OryxAdditive.com info@OryxAdditive.com support@OryxAdditive.com Rev 2.9 June 23, 2022...

  • Page 2: Table Of Contents

    Table of Contents PRELIMINARY STEPS ..................- 4 - II. QUICK TROUBLESHOOTING ................- 5 - III. REMOVING TOP COVER AND BACK PANEL ............- 10 - A. H ...................... - 10 - OW TO EMOVE THE OVER B. H .....................
  • Page 3 B. H F2 2 250V F # 04802-01]............- 26 - OW TO EPLACE THE XII. TROUBLESHOOTING STEPS ................- 27 - A. P ..................- 27 - UMP AND RANSFORMER ROUBLESHOOTING B. H ....................- 33 - EATING LEMENT ROUBLESHOOTING C.

  • 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 start, Timer has The system will only run when the timer is counting down. Check the SCA is powered up, not been set timer display on the control panel. display panel is lit. and started If it is not counting down, press the button.
  • Page 7 Probable Problem What to Do Causes Warning Indicator Liquid level Check the indicator lights on the right side of the display control is too high or panel. If either level indicator is on, add or remove water from the Flashing too low 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 XII). Flashing Error Codes: Error Code Displayed EP = Pump motor current fault EH = Heater current fault ES = 12VDC out of range, power supply error EO = Over temperature = Temperature sensor failure...
  • Page 9 Power cord The 1200ht uses a power cord that is certified and rated specifically is defective for this model. Oryx does not advise using any 3 party power cords. or wrong Use of 3 party power cords can result in damage to the SCA and power cord may invalidate any warranty.

  • Page 10: Removing Top Cover And Back Panel

    III. Removing Top Cover and Back Panel A. How to Remove the Top Cover Remove the Top Cover a) With the SCA unplugged, remove the plugs from the top cover. b) Remove the six M5 screws holding the top cover. Figure 1 - Removing Plugs and Screws c) Carefully lift the cover from the SCA and disconnect the display ribbon cable from the Connector PCB.

  • Page 11: How To Remove The Back Panel

    B. How to Remove the Back Panel Remove the Back Panel a) With the SCA unplugged, remove the two M5 screws holding the back panel. b) Pull down on the back panel and remove. Figure 3 - Remove Back Panel...

  • Page 12: Pump Assembly Replacement [Part # 04803-01]

    IV. Pump Assembly Replacement [Part # 04803-01] A. How to remove the Pump Assembly Remove the Pump Assembly a) Unplug the SCA from power and remove the top cover (See How to Remove the Top Cover Section III A). b) Remove the back panel (See How to Remove the Back Panel Section III B). c) Disconnect the motor connector from the PCB Assembly.
  • Page 13 NOTE 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 6 - Remove the Pump Assembly h) Grip the pump assembly by the motor and carefully guide the pump assembly through the hole in the bridge and remove.

  • Page 14: How To Install The Pump Assembly

    B. How to install the Pump Assembly Install the Pump Assembly a) Mount the pump assembly to the bridge using the four M5 mounting screws and attach ground wire to the tray. b) Thread the motor wires through the bridge. c) Attach the ground wire from the motor to the bracket.

  • Page 15: Sensor Assembly Replacement [Part # 04810-01]

    V. Sensor Assembly Replacement [Part # 04810-01] A. How to Remove the Sensor Assembly Remove the Sensor Assembly a) Unplug the power cord and remove the top cover (See How to Remove the Top Cover Section III A). b) Unplug the three connectors from the sensors that attached to the Connector PCB. c) Remove the four M5 screws holding the Sensor Assembly.

  • Page 16: How To Install The Sensor Assembly

    B. How to install the Sensor Assembly Install the Sensor Assembly a. Insert the Sensor Assembly into the motor tray. b. Mount the Sensor Assembly using the four M5 screws. c. Plug in the three sensors to the appropriate connectors on the Connector PCB. d.

  • Page 17: Spray Nozzle Replacement [Part # 04809-01]

    VI. Spray Nozzle Replacement [Part # 04809-01] A. How to Replace the Nozzle Replace the Nozzle a) The 1200ht has an old style and a new style nozzle. i.The old style nozzle (Threaded style [04809-01 Rev A]) was present on SCAs from Serial Numbers HT00001 - HT01974.

  • Page 18: Heater Assembly Replacement [Part # 04805-01]

    VII. Heater Assembly Replacement [Part # 04805-01] A. How to Remove the Heater Assembly Remove the Heater Assembly a) Unplug the SCA from power and remove the top cover (See How to Remove the Top Cover Section III A). b) Remove the back panel (See How to Remove the Back Panel Section III B). SHOCK HAZARD! PLEASE ENSURE POWER PLUG IS REMOVED FROM THE SCA.

  • Page 19: How To Install The Heater Assembly

    M5 Screws (4 places) Figure 11 - Top View of SCA with the Top Cover Removed Figure 12 - Remove 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.

  • Page 20: Display Control Panel Replacement [Part # 04808-02]

    VIII. Display Control Panel Replacement [Part # 04808-02] A. How to Remove the Display Control Panel Remove the Display Control Panel a) Remove the top cover (See How to Remove the Top Cover Section III A). b) Turn the cover over and remove the four screws holding ribbon cable Tabs Figure 13 - Remove Screws c) Press the four tabs (two on each side of the display) on the side of the display and press the...

  • Page 21: How To Install The Display Control Panel

    B. How to Install the Display Control Panel Install the Display Control Panel Thread the ribbon cable through the hole on the front of the top cover where the display will be mounted. Check the orientation of the display and proceed to press the display into the top cover. The display should snap into place.

  • Page 22: Pcb Assembly Replacement [Par # 04807-01]

    IX. PCB Assembly Replacement [Par # 04807-01] 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 B). b) Check the wires to make sure the labels are on the wires connected to the PCB. c) Remove all the wires connected to the PCB, be careful not to rip off a wire label.

  • Page 23: How To Install The Pcb Assembly

    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 24: Power Switch Replacement [Part # 04813-01]

    X. Power Switch Replacement [Part # 04813-01] 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 B). b) Disconnect the PEM wire connectors from the PCB. Take note of which connector attaches to each tab (red wire to top tab labeled AC-L).

  • Page 25: Fuse Replacement

    Older models will have a plastic fuse holder (See Figure 18). (NOTE: This PCB style has been recalled. Call Oryx Additive to have this board replaced). c) Newer models will have a clip that holds this fuse. Simply pull out the old fuse and replace.

  • Page 26: How To Replace The F2 2 Amp 250V Fuse [Part # 04802-01]

    B. How to Replace the F2 2 amp 250V Fuse [Part # 04802-01] Replace the 2 Amp Fuse a) Remove back panel (See Removing the Back Panel Section III B). b) Pull the 2 amp fuse out of clips. 2 amp Fuse Figure 20 - Fuse Location c) Press the new fuse into the clips.

  • Page 27: 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 28 c. If the pump appears to not be working at all, disconnect power from the SCA and remove Back Panel (See Removing the Back Panel Section III B). d. Visually inspect the start capacitor for any damage. A defective capacitor can leak electrolyte which can be visibly apparent.
  • Page 29 b. Ohm out the pump between the wires on pins 1 & 3 on the cable connector. i. Should see ~31 c. Ohm out the pump between the wires on pins 2 & 4 on the cable connector. i. Should see ~65 d.
  • Page 30 Test the Pump Motor Start Capacitor a. The 4 µF (micro Farad) start 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 31 d. If a capacitance option is not available on the multimeter, the resistance can be tested. i. Short the leads of the start cap initially (See Figure 26). ii. After shorting the capacitor leads, measure between both wires at the highest resistance setting of the multimeter.
  • Page 32 Check the Motor Enable Signal a. Remove the top cover (See Removing the Top Cover Section III A) and check the signal from the Display Controller on the Connector board to the PCB. b. Press the start button on the control panel to enable the pump motor and measure the voltage across pin 2 (GND) and pin 4 (Motor Control Signal) on the connector J2 solder joints (See Figure 28).

  • Page 33: Heating Element Troubleshooting

    B. Heating Element Troubleshooting Tools Needed: Multimeter Phillips Screwdriver Symptom Not Heating 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 a.
  • Page 34 NOTE: There are 2 heating elements on the SCA 1200ht. One heating element is dedicated to 110VAC only, the other is dedicated to 220/230VAC. Only one element is used and only one element will have voltage depending on the input voltage. They are not interchangeable.

  • Page 35: Thermal Cutoff Switch (Tco) Troubleshooting

    C. Thermal Cutoff Switch (TCO) Troubleshooting Tools Needed: Multimeter Phillips Screwdriver Symptom Not Heating Theory: The Thermal Cutoff switch found on the back wall of the tank by the main power switch disables the heater element if the temperature of the bath exceeds 90ºC. To reset the switch, allow the temperature of the bath to drop below 80ºC and press the red reset button between the wire terminals.

  • Page 36: Temperature Sensor Troubleshooting

    D. Temperature Sensor Troubleshooting Tools Needed: Multimeter Philips Screwdriver 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 37: Water Level Sensor Troubleshooting

    E. Water Level Sensor Troubleshooting Tools Needed: Multimeter Philips Screwdriver 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 33). If the water level is at the minimum or maximum level, the magnetic property of the float closes an internal switch, which generates an error.

  • Page 38: N Opower To Sca Troubleshooting

    F. No Power to SCA Troubleshooting Tools Needed: Multimeter Phillips Screwdriver Symptom SCA Appears to have no power, there are no audible clicks when toggling the power switch, the LED on the PCB is not lit. Theory: The SCA requires 110VAC (US) or 230VAC (Europe) +/- 10%. The SCA chooses the right configuration automatically according to the input power via an evaluation relay.
  • Page 39 2. Power switch is off - infinite Figure 34 - Power Entry Module (PEM) Check the Continuity of F2 a. Ohm out fuse F2 (2A 250V). i.Replace the fuse if it is open. b. If the fuse blows again, remove power from the SCA and remove the pump and transformer connectors from the PCB.

  • Page 40: N Opower To Display Troubleshooting

    G. 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, there are audible clicking sounds and the LED is lit on the PCB. Theory: The display requires ~12 VDC from the PCB to operate.
  • Page 41 Measure the Display Voltage a. Remove the top cover (See Removing Top Cover and Back Panel Section III A). b. Measure the voltage between pin 2 (GND) and pin 10 (12V DC) on the Connector board J2 solder joints. There should be between 9V and 15V DC (usually around 12 or 13 V DC) (See Figure 36).

  • 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 Power Circuit...
  • Page 44 Heating Elements Driver / Buzzer Circuit...
  • Page 45 Black Pump Motor Driver...
  • Page 46 Main board and Connector board to panel connection diagram...

  • Page 47: Pcb Layout

    C. PCB Layout PCB (Printed Circuit Board)

  • Page 48: Controller Cable Connectors

    D. Controller Cable Connectors • → ~ 0V DC • → ~ High 12V DC J1 Connector (PCB) Description High 12V DC Power off Power On Heating tube fault detection input No Fault Fault Heating tube fault detection input No Fault Fault Heating tube control signal input Heater Enable Off...
  • Page 49 • → ~ 0V DC • → ~ High 12V DC J2 Connector (Connector Board) Description High 110V and 220V recognition detection input 110V AC Applied DC Ground Buzzer control signal output Buzzer Off Buzzer On Pump Motor control signal output Pump Enable Off Pump Enable On Pump Motor failure detection input...
  • Page 50 • → ~ 0V DC • → ~ High 12V DC J3 Connector (Connector Board) Description High Water Level High Sensing Water Level Low Sensing Temperature Sensing Display VCC ~12V DC Power Off Power On 110V and 220V recognition detection input 110VAC Heater Malfunction Sensing No Fault...

  • Page 51: Commonly Used Parts

    E. Commonly Used Parts Commonly Used Parts Part Number Image Part Description Pump Motor Assembly 04803-01 Power Entry Module (PEM) 04813-01 Heater Assembly 04805-01 Sensor Assembly 04810-01 Thermal Cutoff Switch (TCO) 100503 Threaded Nozzle 04809-01 Rev A...
  • Page 52 Bayonet Nozzle 04809-01 Rev B Transformer SCA-1200ES-E017 Start Capacitor SCA_1200ES_E014 Printed Circuit Board (PCB) 04807-01 Display Controller 04808-02 F1 15A 250V Fuse 04815-01 F2 2 amp 250V Fuse 04802-01...
  • Page 53 115VAC Power Cord (US) 04811-01 220VAC Power Cord (EU) 04811-02...

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