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Summary of Contents for Unical CMCS 12HI
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Page 1: User Manual
CMCS 12HI CMCS 18HI User Manual... -
Page 2: Table Of Contents
Table of Contents 1. GENERAL INFORMATION ....................3 2. SAFETY PRECAUTIONS ..................... 6 3. OUTLINE OF INDOOR & OUTDOOR UNITS ..............11 4. LED INDICATORS ON INDOOR UNIT ................12 5. ADJUSTING THE AIRFLOW DIRECTION ................. 13 6. EMERGENCY OPERATION & TEST SWITCH ..............14 7. -
Page 3: General Information
1. GENERAL INFORMATION Outline of specific features ECO-FRIENDLY REFRIGERANT R410A As R410A refrigerant contains no chlorine, it does not damage ozone. POWER CONTROL THROUGH "DC INVERTER" Power is suppplied according to real needs of comfort, thus permitting a sure energy saving. INFRARED REMOTE CONTROLLER All available functions of the air conditioner can be set by using the infrared remote controller, whose LCD panel immediately shows the operating parameters. - Page 4 GENERAL INFORMATION THERMOSTAT UNDER MICROCOMPUTER CONTROL The thermostat being controlled by microcomputer allows remarkable energy saving and provides more comfort, as the room temperature is checked with the greatest precision. INDOOR FAN AUTOMATIC SPEED CONTROL The airflow from the Indoor Unit can be controlled step by step, on the basis of the difference between the room temperature and the set temperature.
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Page 5: Recommended Operating Conditions
GENERAL INFORMATION Recommended operating conditions In order to obtain the Unit's best performances, it is recommended its use under the following conditions: -15°C to 43°C Outdoor temperature: Room temperature: 17°C to 32°C COOLING OPERATION CAUTION: Room relative humidity should be less than 80%. If the air conditioner operates beyond this limit, the surface of the heat exchanger could get covered with frost. -
Page 6: Safety Precautions
2. SAFETY PRECAUTIONS Before starting the air conditioner, please read carefully the information in this "USER MANUAL". The User's Manual contains very important suggestions relatied to installation, operation and maintenance of the air conditioner and concerning your personal safety. The Manufacturer accept no responsibility for the damages that may arise due to non- observance of the instructions listed in this "USER MANUAL". - Page 7 SAFETY PRECAUTIONS • Strictly observe the instructions provided in this Manual. • The air conditioning system contains inside its refrigerant circuit the R410A gas under pressure. Never disconnect refrigerant pipes or connection joints. • Never perform any handling on Outdoor Unit service valves or on Indoor Unit’s unions.
- Page 8 SAFETY PRECAUTIONS Installation Never try to install this Unit by yourself, i.e. without the support of Tachnical Personnel. Never try to reapir the Unit by yourself. The Unit's components can be reached only by opening or removing the covering panels, and this involves exposure to high voltage. Even by disconnecting power supply, it is not always possible to avoid the risk of electric shocks.
- Page 9 SAFETY PRECAUTIONS Always observe the operating precautions listed in the following tables. In this way, correct operation and safeguard of people, animals and objects inside the air-conditioned room will be ensured. WARNING Use the correct voltage and frequency for power Do not insert the air conditioner's plug into multiple supply.
- Page 10 SAFETY PRECAUTIONS CAUTION Ventilation should be operated when using the Do not use sprayers near the air conditioner, and air conditioner and gas burners at the same do not spray anything towards the appliance. time. Insufficient ventilation will cause lack of oxygen.
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Page 11: Outline Of Indoor & Outdoor Units
3. OUTLINE OF INDOOR & OUTDOOR UNITS INDOOR UNIT OUTDOOR UNIT Airflow louver (at air outlet) Drain pump (drain water from Indoor Unit) Drain pipe Air outlet Air filter (inside air-in grill) Air inlet Air-in grill Display panel IR Remote Controller Refrigerant pipe Air inlet Air outlet... -
Page 12: Led Indicators On Indoor Unit
4. LED INDICATORS ON INDOOR UNIT The electronics of the air conditioner is able to diagnose eventual malfunctions which can be interpreted by the 4 LED indicators on the Indoor Unit's frontal panel. According to the state of each indicator (ON, flashing, OFF), the Authorized Technical Service is able to detect the common type of anomalies. -
Page 13: Adjusting The Airflow Direction
5. ADJUSTING THE AIRFLOW DIRECTION Up/down adjustment When pressing "ON/OFF" button on the remote controller, the Unit starts and automatically selects the best angle for the motorized louver, according to the set operating mode (Cool, Dry or Heat mode). It is possible to select your desired position for the motorized louver by pressing SWING " "... -
Page 14: Emergency Operation & Test Switch
6. EMERGENCY OPERATION & TEST SWITCH Temporary button OPERATION IN EMERGENCY MODE: If you have lost the remote controller or its batteries are exhausted, the air conditioner can be started by pressing once the Temporary button on the Indoor Unit's frontal panel. The air conditioner will start operating in the Emergency running "AUTO"... -
Page 15: Ordinary Maintenance And Advice For Use
7. ORDINARY MAINTENANCE AND ADVICE FOR USE Indoor Unit's cleaning WARNING Before starting any kind of ordinary maintenance: 1 - Stop the appliance by pressing "ON/OFF" button on remote controller; 2 - Move the circuit breaker to "OFF" or "0" position; 3 - Pull the plug out of the power socket;... - Page 16 ORDINARY MAINTENANCE AND ADVICE FOR USE Removing and cleaning the air filter Open the frontal grille by seizing with the fingers the little levers inserted in the grille's body, and slide them to the open position (towards the centre). Pull down the air inlet grille together with the filter (Fig.
- Page 17 ORDINARY MAINTENANCE AND ADVICE FOR USE At the beginning of season When restarting the air conditioner after a long time, or at the beginning of the season, please carry out the following procedure: Do not obstruct the air inlet and outlet Check if any objects obstruct the airflow at the air inlet and outlet on Indoor and Outdoor Units.
- Page 18 ORDINARY MAINTENANCE AND ADVICE FOR USE At the end of season At the end of the season or in case you foresee not to use the air conditioner for a long time, please carry out the following procedure: Dry the Unit Operate the air conditioner in "COOL"...
- Page 19 ORDINARY MAINTENANCE AND ADVICE FOR USE Suggestions for economical use Select a suitable temperature value °C • In Heating mode, avoid to set too high temperature value. • In Cooling mode, avoid to set too low temperature values. Often clean the air filters •...
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Page 20: Troubleshooting
8. TROUBLESHOOTING Following symptoms are not air conditioner's troubles The following table shows a series of seeming malfunctions. Please check the following items before calling the Authorized Technical Service. WHAT HAPPENS REASON • If "OPERATION" LED on Indoor Unit lights up, it is normal that the system does not immediately restart. - Page 21 TROUBLESHOOTING Problems deriving from the remote controller Before starting troubleshooting, please perform the following checks: It is not possible to change the settings while the air conditioner is operating WHAT HAPPENS CHECK POSSIBLE REASON When operating in "AUTO" mode, the Check if "AUTO"...
- Page 22 TROUBLESHOOTING Problems and possible solutions The following table shows a series of problems and their possible reasons and solutions. Compiere le verifiche descritte prima di richiedere l’intervento dell’Assistenza Tecnica. PROBLEM REASONS SOLUTIONS • Power failure. • Wait for the comeback of power. •...
- Page 23 TROUBLESHOOTING Error Codes on Indoor Units HTFU 200-260 XL-1 & HTFU 350-530 XAL-1 "ALARM" "OPERATION" "TIMER" "PRE/DEF" Malfunction lamp lamp lamp lamp C o m m u n i c a t i o n f a u l t between Indoor and Outdoor Unit.
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Page 24: Automatic Restart After A Power Failure
9. AUTOMATIC RESTART AFTER A POWER FAILURE • When a power failure occurs during operation, the air conditioner stops immediately. • When power is restored, the "OPERATION" lamp on the Indoor Unit starts blinking. • In particular, the air conditioner will restart automatically after 3 minutes have elapsed since power is restored. - Page 25 NOTES...
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