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manual abstract
We recommend using a long-neck screwdriver or 7/16-in. socket for the operation shown below. NEVER PRY OPEN THE FLUSH BALL FROM INSIDE THE TOILET BOWL. Damage to the flush ball and bowl seals may result. 1. Remove PC board access cover. Place Mode Switch in the “Manual Override” position. This disconnects flush valve motor brake from electrical circuit. 3. Insert screwdriver or 7/16-in. socket through access hole and onto hex head. Manual Override position 4. Turn screwdriver or socket wrench counter- clockwise. This will open flush ball and allow bowl contents to clear. After bowl is clear, turn screwdriver or socket wrench clockwise to return flush ball to original position. 2. Locate hole on left side of china toilet. This allows access to the flush valve motor drive arm. NOTES: Water will not enter the toilet bowl during manual flush operation. Place Mode Switch in the “Normal” position before returning to automatic operation. TOILET SYSTEM ELECTRICAL SPECIFICATIONS 12VDC 24VDC Maximum standby current (amps): .080 .080 Maximum operating current (amps): 6.5 2.5 Flush motor locked rotor current (amps): 14.5 7.25 Maximum voltage 15 30 Minimum voltage: 10 20 Input power wire size 14 ga. 14 ga. All other wires size: 18 ga. 18 ga. Fuse size (amps) 8 4 NOTES: Standby current includes flush panel status light. Operating current does not include vacuum pump or other sanitation system components. TROUBLESHOOTING A volt/ohmmeter (VOM) and the appropriate Toilet Wiring Diagram may be required for this section. Caution: Portions of this section will require that power be applied to the toilet. Keep hands away from the flush ball, motor drive arm and rotor shaft to prevent personal injury during testing and troubleshooting. The control module uses a microprocessor to provide all the automatic and timing functions. The control module is on the right side under the access cover on the top of the toilet. The control module has input and output status lights that can be used in troubleshooting the toilet. The program in the microprocessor monitors the input and output signals during a normal flush cycle. If the inputs or outputs do not follow the commands of the program, then the microprocessor may go into a “standby” mode and flash an “error code.” The microprocessor is reset by placing the Mode switch in the SERVICE position temporarily, then returning the switch to the NORMAL position. A safety circuit in the control module monitors flush ball operation. If foreign objects or low voltage prevent the flush ball from closing, this circuit prevents personal injury or damage to the flush valve motor. If this condition occurs, reset the control module by placing the Mode switch into the SERVICE position temporarily, then returning it to the NORMAL position. Function Water Level Switch in “Low” position. Water Level Switch in “High” position. Flush valve Closed Limit Switch engaged. Flush valve Open Limit Switch engaged. Mode Switch in “Service” position. Flush Switch on control panel engaged. Add Water Switch on control panel engaged. High vacuum in system (allows toilet to flush). Full holding tank (prevents toilet from flushing). Signal to “OK TO FLUSH” light on control panel. Signal to “DO NOT FLUSH” light on control panel. Electric water valve energized. Input power present. Status Light 1 Low Level 2 High Level 3 Valve Closed 4 Valve Open 5 Service Mode 6 Flush 7 Add Water 8 High Vac Switch 9 Holding Tank Full 10 OK to Flush 11 Do Not Flush 12 Water Valve 13 +5V ERROR CODES Status Light 10 OK to Flush 11 Do Not Flush 11 Do Not Flush 11 Do Not Flush 11 Do Not Flush Condition Mode Switch in SERVICE position VALVE OPEN Limit Switch problem VALVE CLOSED Limit Switch problem Insufficient vacuum in system Flush valve motor relay failure No. of Flashes 1 1 2 3 4 Pause .5 sec. 2 sec. 2 sec. 2 sec. 2 sec. CONTROL MODULE STATUS LIGHTS LED 10 LED 2 LED 13 LED 12 LED 11 LED 9 LED 8 LED 7 LED 6 LED 5 LED 4 LED 3 LED 1 HOLD TANK FULL SERVICE MODE FLUSH LO LEVEL HI VAC SWITCH OK TO FLUSH DO NOT FLUSH HI LEVEL ADD WATER WATER VALVE VALVE CLOSED +5V VALVE OPEN TROUBLESHOOTING (cont’d) ERROR CODE CORRECTIVE PROCEDURES Condition Mode Switch in SERVICE position. Valve Open Limit Switch problem. Valve Closed Limit Switch problem. Insufficient vacuum in system. Flush valve motor relay failure. Corrective Action Return Mode Switch to NORMAL position. With the flush valve fully open, check the “VALVE OPEN” status light. If the light is off, then the Valve Open Limit Switch is out of alignment or defective, or related wiring is defective. With flush valve in the fully closed position check the “VALVE CLOSED” status light. If the light is off, then the Valve Closed Limit Switch is out of alignment or defective, or related wiring is defective. Check the “HI VAC” status light. If the light is off, the signal from the vacuum switch located on the vacuum generator or vacuum tank is absent and preventing the toilet from flushing in the NORMAL mode....
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