Chungho IGUASSU ICE Technical Manual
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Chungho IGUASSU ICE Technical Manual

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Technical & Repair guide for ChungHo
Iguassu ICE
IGUASSU ICE Technical Manual
call 888.758.1234 for further technical support

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Summary of Contents for Chungho IGUASSU ICE

  • Page 1 Technical & Repair guide for ChungHo Iguassu ICE IGUASSU ICE Technical Manual call 888.758.1234 for further technical support...

  • Page 2: Table Of Contents

    Table of Contents 1. Designation of Components page 3-5 1-1. Front 1-2. Interior 1-3. Back 2. Product Features page 6-9 3. Exploded Diagram page 10-11 3-1. Overall Exploded Diagram 3-2. Exploded Diagram of Ice Making Department 4. System Diagram page 12 4-1.

  • Page 3: Designation Of Components

    Designation of Components 1-1 FRONT Illumination Sensor Ice Full Display Water Full Display Hot Water Lock Button Hot Water On/Off & Econo Mode Button Hot Water Selecting Button Cold Water Selecting Button Ambient Water Selecting Button Ice Dispensing Button Water Dispensing Nozzle Water Dispensing Push Button...

  • Page 4: Interior

    1-2 INTERIOR Top Cover Ambient Water Tank Ice Making Unit Front Upper Panel Cold Water Tank Ice Storage Hot Water Tank Drip Tray Drainage Valve Wire Condenser Drainage Switch Front Lower Panel Compressor Filters Booster Pump...

  • Page 5: Back

    1-3 BACK Power Cord Hot Water ON/OFF Switch Drain Outlet Waste Water Outlet Water Source Inlet...

  • Page 6: Product Features

    Energy saving function The economically designed Iguassu Ice delivers purified water to the ice making unit in order to make pure ice while simultaneously sending cooled water to cold water tank. This allows the system to maintain a constant cold water temperature, thus inherently preventing water waste and helping to conserve energy.
  • Page 7 4 H₂O(Ambient water/Cold water/Hot water/Ice) 1 product! With improved convenience, the Iguassu ice offers more production and supply power by providing purified ambient water, cold water, hot water, and ice from the same product.
  • Page 8 Another new de- velopment, found in the Iguassu Ice, is the automatic selection of cold water. In many circumstances, cold water is found to be the most desired temperature of water for drinking. The system has a reset function which, shortly after selecting hot or ambient water, will automatically switch the cooler into cold water mode.
  • Page 9 Function operations are designed as simply as possible in order to maximize convenience. Environment Friendly Coolant The Iguassu Ice has adopted an environmentally friendly cooling system in the new R-134a, a coolant that will not add to the problems of ozone layer destruction and global warming.

  • Page 10: Exploded Diagram

    Exploded Diagram 3-1 OVERALL DIAGRAM Water Dispensing Solenoid Valve Drainage Valve Drainage Switch...
  • Page 11 3-2 ICE MAKING DEPARTMENT Sub Tank Ice Full Sensor (RX) Inlet Solenoid Valve Ice Full Sensor (TX) Synchronous Motor (Camshaft) Circulation Pump Cold Water Level Sensor Cold Water Ice Outlet Guide Sensor...

  • Page 12: System Diagram

    System Diagram 4-1 WATER PURIFICATION PROCEDURE Level Sensor Ambient Water Tank Ice Making Unit Ambient Water Sol. V/V Ice Making Cold Water Tank Water Cold Water Sol. V/V Pump Dispensing Cold Water Sol. V/V Ice Storaging Unit Hot Water Sol. V/V Dispensing Solenoid Auto...

  • Page 13: Distribution Line Diagram

    Distribution Line Diagram...

  • Page 14: Product Specification

    Product Specification...

  • Page 15: Installation Precautions

    Installation Precautions When installing the product, do not install it at the following places. - Near fire - Near flammable material - Wet place - A place exposed to rain and snow - A place exposed to direct sunshine - Near chemicals (volatile material, organic solvent, etc.) - A place below 32°F or a place with the possibility of dropping below 32°F When the product is installed in a dark place, and the power saving function is set, then hot water system may not operate even during daytime.

  • Page 16: Relocation/Installation Precautions

    Relocation/Installation Precautions In case the product is needed to be transported, please make sure there is no water left at all inside of the unit before moving the product. (If the product is moved without the complete drainage process as described below, it may cause serious damage to the product.) This is to be performed with the power plug inserted.

  • Page 17: Installation

    Installation Install the product on a level surface. (Change product level using the product leg adjustment and confirm the level surface a level.) Close off the water supply valve as supplied to each household. Then tempo- rarily remove the connector part as provided from your given water source. Then connect the main water line adaptor.

  • Page 18: Usage

    Usage 10-1 DISPLAY (A) 10-2 WATER DISPENSING & BUTTONS (B)

  • Page 19: Operational Beep

    10-3 OPERATIONAL BEEP Action Beep Remarks / Occurrence Action Beep Remarks / Occurrence During Power ON Ding Dong Dang One Time During Power ON Ding Dong Dang One Time During Key Input Ding~ One Time During Key Input Ding~ One Time During Hot Water Lock Ding Ding Ding One Time...
  • Page 20 ECONO(power saving) Function Setting Touch the HOT/ECONO(hot water operation/power saving selection) touch sensor button. Power saving display LED is turned on and power saving function is set. * Power saving function is automatically set to turn on/off the hot water system through operation of light sensor detection in accordance to the brightness around the product while hot water function is set.

  • Page 21: Ice And Water Dispensing

    10-5 ICE AND WATER DISPENSING Ice Dispensing Mode If ICE(ice dispense) touch sensor button is pressed, the door of the ice storage house is opened and ice comes out from the dispensing hole. HOT LOCK(hot water lock) Function Release If HOT(hot water selection) touch sensor button is selected and the water dispensing button is pressed, hot water comes out.

  • Page 22: Understanding The Ice Making Process And Operation

    10-6 UNDERSTANDING THE ICE MAKING PROCESS AND OPERATION The ice making system of the IGUASSU ICE automatically operates according to designed program settings after applying power to the product. If power is supplied to the product by inserting the power plug, then ice making automatically oper- ates without any manual setting.

  • Page 23: Test Board

    Test Board Remove the front upper panel to reveal Test Board wire harness conncetion. Test different parts of the product : when LED light is blinking, replace appropriate part. Test Board Manual Functions BYPASS Used to move on to the next function on the checklist (except for when COLD WATER is being sent via circulation pump) ICE RELEASE Hot Gas released : Compressor turned Off for 60 seconds to release Ice from the Ice Maker.

  • Page 24: Examination/Repair Procedure

    Examination/Repair Procedure Malfunction Page No Ice / No Cold Water Ice Not Dispensing Axle Coupling Replacement Water Odor / Bad Taste Water Leak Residual Water Dispense Button Malfunction Touch Sensor Defect Ice / Water Full LED Blinking Water Full LED Blinking Sensor Table...

  • Page 25: No Ice / No Cold Water

    12-1 NO ICE / NO COLD WATER 12-1 NO ICE / NO COLD WATER Malfunction Page R134-A Leak Hot Gas Leak OLC-S Defect Cold Water Level Sensor Defect Main Sol V/V Defect TRC Sensor Defect Circulation Pump Defect Ice Temperature Sensor...
  • Page 26 12-1-A R134-A LEAK Symptom Comp. is working but no Cold Water / No Ice. 1. Comp. is working, but back grill is cold. 2. Comp. is working, but the dryer is cold. * Check temperature 10 min after the Comp. has operated. How to Diagnose Touch the back grill with your hand to Touch the dryer with your hand to de-...
  • Page 27 12-1-B HOT GAS LEAK Symptom Comp. is working but no Cold Water / No Ice. 1. Check for leakage around welded areas. How to Diagnose Check to see if the Hot Gas is flowing through the Hot Gas V/V If Hot Gas V/V is functioning properly, there is condensa- tion at this area.
  • Page 28 12-1-C OLC-S SENSOR DEFECT Symptom Water tanks do not get full. How to Diagnose Check to see if Ambient tank is (25%) If clogged, it will prevent water flow. full. (OLC Mesh / Medium Filter) Check to see if water is flowing after the Post Carbon Filter.
  • Page 29 12-1-D COLD WATER LEVEL SENSOR DEFECT Symptom 1. Main OLC-S not full above 25% level. 2. Water is continuously draining. 3. Cold water is not coming out. How to Diagnose Check to see if Ambient tank is (25%) DC Current Check : full.
  • Page 30 12-1-E. MAIN SOL V/V DEFECT Symptom Cold water is not coming out. How to Diagnose No water is flowing to the Cold tank. - The main Sol V/V needs to be DC24V. Connect the Test Board and diagnose. (Cold tank not full : takes approx. 5 min. - Will test 3 times;...
  • Page 31 12-1-F. TRC SENSOR DEFECT Symptom Comp. is working properly, but TRC sensor is defective, preventing Ice making. Compressor will continue to operate until 40F. How to Diagnose Connect Test Board for testing. Each cold water process takes 60 min. Repeat 3 times; if defective, Test Board LED16 will start blinking.
  • Page 32 12-1-G. CIRCULATION PUMP DEFECT Symptom 1. Water does not circulate if defective; causing Ice Full LED to blink. - Connect Test Board: Circulation pump defective or Ice tray frozen. 2. If Ice tray is frozen; may cause Camshaft axle coupling to break. How to Diagnose Connect Test Board : Ice fails to make after 3 tries (avg.
  • Page 33 Check ohm reading of sensor. Connect Test Board: If LED13 blinks, then check sensor. ** The sensor is the same for Iguassu Ice and Ice Combo Plus Cause of Defect If Ice temp. sensor detects -22ºF, it will cause Circulation pump to be considered defective and stop the Comp.

  • Page 34: Ice Not Dispensing

    12-2 ICE NOT DISPENSING 12-2-A. ICE FULL SENSOR(S) DEFECT Symptom 1. Ice is full, but does not dispense. 2. Ice dispense motor functioning, but there is no Ice. How to Diagnose Press the Ice button to check whether the blades are rotat- ing.
  • Page 35 12-2-B. ICE DISPENSER MOTOR Symptom Ice button is pressed, but blades are not rotating. How to Diagnose Press the Ice button and check to see if the blades are rotating. Cause of Defect 1. Motor shaft is not aligned properly. 2.

  • Page 36: Axle Coupling Replacement

    12-3 AxLE COUPLING REPLACEMENT 12-3-A. EVA ASSEMBLY DEFECT Symptom 1. Cold water is working properly, but there is no Ice. 2. Connect Test Board: LED22 starts blinking. How to Diagnose Press the Ice button to dispense Ice. 2. There is Ice, but Ice shape is irregular. - Remove Front-upper cover and disassemble the dispense tunnel to check the shape of Ice.
  • Page 37 12-3-B. PRODUCT IS NOT LEVEL Symptom 1. Cold water is working properly, but there is no Ice. 2. Connect Test Board: LED22 starts blinking. How to Diagnose Press the Ice button to dispense Ice. There is Ice, but Ice shape is irregular. - Remove Front-upper cover and disassemble the dispense tunnel to check the shape of Ice.
  • Page 38 12-3-C. ENVIRONMENT SENSOR DEFECT Symptom 1. Cold water is working properly, but there is no Ice. 2. Connect Test Board: LED22 starts blinking. How to Diagnose Push the Ice button to dispense Ice. There is Ice, but no Ice is dispensing - Check Ice shape. - Remove Front-Upper cover and disassemble the dispense tunnel to check the shape of Ice.
  • Page 39 12-3-D. CIRCULATION PUMP DEFECT Symptom 1. Comp. working, but circulation pump does not function and Ice Full is off. Connect Test Board: Circulation Pump Defect or Over-Freezing. 2. Due to over-freezing, Axle Coupling may be broken. How to Diagnose Connect Test Board to conduct initial diagnostic. During Cold water &...
  • Page 40 12-3-E. HOT GAS V/V WIRE DISCONNECT Symptom Ice is made, but does not fall off the fingers. How to Diagnose Connect Test Board and press the Ice Re- lease Button. Check to see if it is functioning. Voltage : AC 220V Cause of Defect If Hot Gas does not flow properly, may lead to the Axle Coupling to break.
  • Page 41 12-4 WATER SMELL / TASTE BAD 12-3-C. ENVIRONMENT SENSOR DEFECT Symptom 1. Ice Making is working properly, but there is no Ice / no Cold. 2. When dispensing Cold water: heavy plastic smell / water is oily. How to Diagnose Check the water from Post Out to Ambient tank for odor.

  • Page 42: Water Leak

    12-5 WATER LEAK 12-5-A. COLD WATER LEVEL SENSOR DEFECT Symptom 1. Ambient water is not full. 2. Water keeps flowing to drain. 3. Water is dripping down from Ice dispense tunnel / rotator blade. How to Diagnose Check to see if Ambient tank is (25%) DC Current Check : full.
  • Page 43 12-5-B. MAIN SOL V/V DEFECT Symptom 1. Water flows to drain (Main V/V has particles) 2. Water is dripping down from Ice dispense tunnel / rotator blade. How to Diagnose If water flows to drain, check for particles in the Main Sol V/V Cause of Defect If there are particles stuck in the Main Sol V/V, may cause the water to drip down from Ice dis-...

  • Page 44: Residual Water

    12-6 RESIDUAL WATER 12-6-A. SOL V/V DEFECT Symptom Water keeps dripping from spout. How to Diagnose Water flowing from spout when water dispense button is not pressed. - Check for particles inside Sol V/V. Cause of Defect If particles build up inside Sol V/V, it will prevent the Sol V/V from shutting off water from ambient tank and cause it to drip.
  • Page 45 12-6-B. WATER REMAINING ON SPOUT Symptom Water keeps dripping from spout. How to Diagnose Check Red O-ring in Manifold & Faucet Deco assembly. - Red O-ring must not be visible/need to be inserted all the way. Check for Mesh inside spout. WATER REMAINING Cause of Defect...

  • Page 46: Dispense Button Malfunction

    12-7 DISPENSE BUTTON MALFUNCTION 12-7 DISPENSER BUTTON MALFUNCTION Symptom Water continues to flow after releasing button. How to Diagnose Push button in and let go. Check to see if it releases. Detach Dispense Button and check for particles, such as coffee, dirt, etc. Check MFG Date.

  • Page 47: Touch Sensor Defect

    12-8 TOUCH SENSOR DEFECT 12-8 TOUCH SENSOR DEFECT Symptom 1. Does not work from initial installation. 2. Does not work after some use. How to Diagnose Press each touch sensor. If the desired setting does not change, open front panel and check wire con- nections and/or if there is moisture on MOISTURE IN THE the PCB.

  • Page 48: Ice / Water Full Led Blinking

    12-9 ICE / WATER FULL LED BLINKING 12-9 ICE & WATER FULL LED BLINKING Symptom For new installations, if the drain switch is turned on, it will not operate and cause the LED to blink and create a ding/ding/sound. How to Diagnose Open front panel and make sure that the switch is “OFF”.

  • Page 49: Water Full Led Blinking

    12-10 WATER FULL LED BLINKING 12-10-A. OLC-S SENSOR DEFECT Symptom Full LED blinking. How to Diagnose Check if OLC-S is exposed to light. In some cases where there may be a gap between the Top Cover and Front Cover, OLC-S may be ex- posed to light, causing the sensor to malfunction.
  • Page 50 12-10-B. SUPPLY SOL V/V DEFECT Symptom Raw water continues to be supplied when water tank is full. How to Diagnose Pull out the tubing from the Booster pump out and check to see if water is coming out. DEFECTIVE Sol V/V Defect Cause of Defect 1.
  • Page 51 12-10-C. S/H FILTER BRACKET DEFECT Symptom Raw water continues to be supplied when water tank is full. How to Diagnose When OLC-S and Supply Sol V/V are function- ing properly, but water is still overflowing, need to check S/H Filter Bracket. Install Check V/V to prevent water flowing back from main tank.

  • Page 52: Sensor Table

    12-11 SENSOR TABLE 12-11-A. ICE MAKING TEMP SENSOR, COLD WATER TEMP SENSOR TABLE (°F) (KΩ) (°F) (KΩ) (°F) (KΩ) 22.2 18.1 14.7 12.1 43.3 34.5 27.6 12-11-B. ENVIRONMENT SENSOR TABLE (°F) (KΩ) (°F) (KΩ) (°F) (KΩ) 26.6 99.5 21.8 78.5 62.5 14.9 12.4...
  • Page 53 12-11-C. ICE MAKING TIME BY ROOM TEMPERATURE Ice Making Time Ice Making Keep Cold (Comp) Ice Dispensing Temp (°F) (minute) Temp. (°F) Temp/Time 48.2 ~ 53.6 53.6 ~ 59 59 ~ 64.4 64.4 ~ 69.8 -20.2 69.8 ~ 75.2 -20.2 2 min 15 min 75.2 ~ 78.8...

  • Page 54: Exploded Diagram & Parts List

    Exploded Diagram & Parts List 13-1 ExPLODED DIAGRAM (1)
  • Page 55 13-2 ExPLODED DIAGRAM (2)
  • Page 56 13-3 ExPLODED DIAGRAM (3)
  • Page 57 13-4 PARTS LIST PART NAME Q'TY MATERIAL PART NAME Q'TY MATERIAL FRONT UPPER-DECO EVA. Fixed BRACKET PC/ABS FRONT LOWER-DECO Rotating Drip Tray BUSHING (R) FRONT LOWER-BODY ICE GRILL LLDPE FRONT UPPER-BODY Ambient Tank Drip Tray COVER-Ambient Tank GRILL-Drip Tray Hot Water SUB TANK CAP HeatProof PP FRONT MIDDLE Hot Water SUB TANK BODY...
  • Page 58 ChungHo USA 1240 N. Simon Circle Suite A Anaheim CA 92806 888.758.1234 www.chunghousa.com techsupport@chunghousa.com...

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