SERVICE & MAINTENANCE MANUAL Specifications are subject to change without notice according to Carrier Policy of continuous development. 03502566 Revision : (0) - 2009
TABLE OF CONTENTS PAGE NO. 1. Precautions for Service & Maintenance 1 2. Split System Description 2 3. Unit Model Designation 3 4. Unit Models & Part Numbers 3 5. Options 4 6. System Operating Limits 5 7. System Safety Protections 5 8. Wiring Diagrams 6 9. Field Electrical Connections Matching 7 10. Refrigeration Cycle 53QG Series 8 11. Replacing Batteries of Remote Control 10 12. Emergency Operation of Air-Conditioner 11 13. Standard and Optional Air Filters 12 14. Air Filter Cleaning 13 15. Indoor Unit Cleaning 14 16. Considerations After Operational Season and Before Long Shutdown Period Of Air Conditioner 17. Periodical Checks 15 18. Self Diagnostic Function For Malfunction Detection 16 19. Trouble Shooting 17 14
1. PRECAUTIONS FOR SERVICE AND MAINTENANCE SAFETY CONSIDERATIONS Installation of air conditioning equipment can be hazardous due to system pressures and electrical components. The installation of the air conditioner must be done by Carrier or one of Carrier authorized dealers.! WARNING This installation manual describes the installation procedures of Carrier split room air conditioner consisting of an outdoor unit and an indoor unit manufactured by Carrier. What is not covered in Carrier warranty? 1- Failure due to wrong electrical connections between the electrical power supply and circuit breaker of air conditioner leading to fire due to short-circuiting. As these electrical connections are owner s responsibility. 2- Failure due to Misuse, Abusing, overloading, negligence of air filters cleaning and negligence of instructions included in the owner s manual. 3- Failure due to Accident / Weather Natural catastrophe, accident due to bad weather (Hail Storm, Sand Storm, lightning, Flooding, Acid Rain and Air Borne fallout, etc). 4- Failure due to damages during transport done through the owner. 5- Failure due to any modifications in the product done through the owner and not done by Carrier or one of Carrier authorized dealers. 6- Failure due to Installation done through the owner and not done by Carrier or one of Carrier authorized dealers. 7- Failure due to Service and Maintenance done through the owner and not done by Carrier or one of Carrier authorized dealers. 8- Failure due to repair by using non-genuine Carrier Parts, or substituting other than Carrier parts done through the owner and not done by Carrier or one of Carrier authorized dealers. 9- Product normal sound ( refrigerant moving parts ) 10- Inconvenience or commercial loss is not covered. The decision of Carrier in ascertaining the same will be final. Any such repairs will be carried - out at the expense of the owner ( purchaser ). 1
2. SPLIT SYSTEM DESCRIPTION Floor/Wall/Ceiling Split System 53VMC14-18-24 8 Outdoor Unit 3 1 2 6 7 9 5 4 Indoor Unit 1: Remote control signal receiver. 2: Operating status leds. 6: Supply air outlet. 3: Supply air flap. 7: Characteristics nameplate. 4: Air return grille. 8: Inter connecting tubing. 5: Air filter ( behind return grille ). 9: Condensate drain line. 2
3. UNIT MODEL DESIGNATION 42 38 VMC QG 18 H C 42 = Indoor Unit 38 =Outdoor Unit Unit Family System Cooling Capacity At ISO Conditions 14 = 14,000 Btu/hr 18 = 18,000 Btu/hr 24 = 24,000 Btu/hr Unit Type H = Heat Pump C = Cool Only 4. UNIT MODELS & PART NUMBERS SPLIT SYSTEMS FOR LOCAL MARKET HEAT PUMP System Indoor Unit Outdoor Unit Model P/N Model P/N Model P/N Compressor Type Supplier 53VMC14-H 46303279 42VMC14-H 46303290 38VMC14-H 46303278 Rotary LG 53VMC18A-H 46303118 42VMC18A-H 46303276 38VMC18A-H 46303117 Rotary Hitachi 53VMC24-H 46303359 42VMC24-H 46303292 38QG24-H 46302128 Rotary LG SPLIT SYSTEMS FOR MILD AMBIENT EXPORT MARKETS HEAT PUMP COOL ONLY Indoor Unit Outdoor Unit Model P/N Model P/N Compressor Type Supplier 42VMC14-H 46303221 38QG15-H 46303300 Rotary Mitsushita 42VMC18A-H 46303533 38VMC18A-H 46303534 Rotary Hitachi 42VMC24-H 46303233 38QG24-H 46303644 Rotary LG Indoor Unit Outdoor Unit Model P/N Model P/N Compressor Type Supplier 42VMC14-C 46303293 38QG15-C 46302110 Rotary Mitsushita 42VMC18-C 46303294 38QG18-C 46303517 Rotary Mitsushita 42VMC24-C 46303295 38QG24-C 46303365 Rotary Mitsushita SPLIT SYSTEM FOR HIGH AMBIENT EXPORT MARKETS HEAT PUMP COOL ONLY Indoor Unit Outdoor Unit Model P/N Model P/N Compressor Type Supplier 42VMC18-H 46303219 38QG18-H 46303516 Rotary Mitsushita 42VMC24-H 46303220 38QG24-H 46303363 Rotary Mitsushita Indoor Unit Outdoor Unit Model P/N Model P/N Compressor Type Supplier 42VMC18-C 46303294 38QG18-C 46303517 Rotary Mitsushita 42VMC24-C 46303295 38QG24-C 46303365 Rotary Mitsushita 3
5. OPTIONS DESCREPTION CONFIGURATION QTY USAGE Electrical Cables Set for Heat Pump System Main Power cable Outdoor Unit Circuit Breaker Power cable Outdoor Unit Indoor Unit Control & Defrost cable Outdoor Unit Circuit Breaker P/N : 02500894 Electrical Cables Set for Cool Only System Main Power cable Outdoor Unit Indoor Unit Power & Control cable Outdoor Unit Indoor Unit P/N : 02500893 Set of 3 Set of 2 To electrically connect between circuit breaker, outdoor and indoor units To electrically connect between circuit breaker, outdoor and indoor units Optional set of air filters (Carbon air filter + Photocatalytic air filter) P/N : 02802563 ( for 42VMC14-18-24 ) Set of 2 To eliminate odor and cigarette smoke in the room air respectively. PTC starting device for 38QG15-18-24 P/N : 02501579 1 To start the compressor in outdoor unit at low voltage down 187V Floor support for indoor units 42VMC14-18-24 1 To mount the indoor unit on the floor in case of impossibility of mounting the unit on the wall P/N : 46300822 4
6. SYSTEM OPERATING LIMITS * Difference COOLING Indoor temperature Maximum Minimum Outdoor temperature Maximum Minimum Dry Bulb Temp. C 32 21 55 20 Wet Bulb Temp. C 23 15 - - Difference HEATING Dry Bulb Temp. C Wet Bulb Temp. C Indoor temperature Maximum 27 - Outdoor temperature Maximum 21 - MAIN POWER SUPPLY Nominal Difference 200-240V/1PH/50HZ Min. Voltage 187 Max. Voltage 264 NOTES: * When the unit is operated above or below these limits for a long time, system diagnostics may detect a malfunction and the unit will not operate properly. ** During heat pump operation the system will undergo several defrost cycles to remove ice that might collect on the outdoor unit in very low ambient temperature. After completion of defrosts cycle, the system will normally operate. 7. SYSTEM SAFETY PROTECTION 7-1 FOR HEAT PUMP SYSTEM PROTECTION TYPE PROTECTION EFFECT OPERATION MODE WHEN ON Cold draft prevention Indoor fan off Heating mode During unit operation Defrost cycle Indoor fan off Heating mode During unit operation Indoor coil Freeze protection Compressor off Cooling mode During unit operation Against frequent Compressor cycling Compressor Time delay Cooling or heating modes At unit start-up or change of operating mode 7-2 FOR COOL ONLY SYSTEM PROTECTION TYPE PROTECTION EFFECT OPERATION MODE WHEN ON Indoor coil Freeze protection Compressor off Cooling mode During unit operation Against frequent Compressor At unit start-up or change Cooling mode Compressor cycling Time delay of operating mode 5
8. WIRING DIAGRAMS 6
WIRING DIAGRAMS (Cont.) 7
9. FIELD ELECTRICAL CONNECTIONS MATCHING - Connect the power supply to the outdoor unit and then get the power required for the indoor unit from the outdoor unit. - Refer to wiring diagrams and stickers-caution sticked inside the outdoor & indoor units. 9-1 CONNECTING ELECTRICAL WIRING FOR HEAT PUMP SYSTEM Indoor Unit LEGEND L N R C Earth Live power supply. Neutral power supply. Live connection indoor/outdoor unit. Neutral connection indoor/outdoor unit. Circuit Breaker Main Switch 200-240V ~ 50Hz Y Compressor control. O Reversing valve control. W2 Outdoor fan motor control. S Outdoor coil sensor. Outdoor Unit Sizes of electrical wires connecting outdoor and indoor units R C Y O W2 S 1 mm 2 1 mm 2 1 mm 2 1 mm 2 1 mm 2 1 mm 2 9-2 CONNECTING ELECTRICAL WIRING FOR COOL ONLY SYSTEM Indoor Unit LEGEND L N R C Y Earth Live power supply. Neutral power supply. Live connection indoor/outdoor unit. Neutral connection indoor/outdoor unit. Compressor control. R C Y Circuit Breaker Main Switch 200-240V ~ 50Hz Sizes of electrical wires connecting outdoor and indoor units R C Y 1 mm 2 1 mm 2 1 mm 2 R C Y Outdoor Unit 8
11. REFRIGERATION CYCLE 53VMC SERIES HEAT PUMP SYSTEM 9
REFRIGERATION CYCLE 53VMC SERIES (Cont.) COOL ONLY SYSTEM 10
12. REPLACING BATTERIES OF REMOTE CONTROL Model 42QG&42VMC 14-18-24 12-1 HOW TO INSERT BATTERIES: (a) Remove the cover of battery compartment at the back of the remote control by pressing the tab toward inside, in the direction of the arrow. (b) Mount the two-battery size AAA 1.5 Volt supplied with the remote control. Then close the cover of the battery component. Note: During mounting of batteries check battery symbols (+, -) indicated in batteries compartment. NOTES: 1. The remote control uses two alkaline batteries (1.5V, LRO03x2). 2. Do not use used batteries or batteries of different types, as this may cause the air conditioner to malfunction. 3. Batteries should only be changed after turning OFF the air conditioner. 4. The average battery life during normal use is approximately one year. 5. When the symbol appears in the display of the remote control, this indicates that the batteries are exhausted and required to be replaced. WHEN DIRECTING THE TRANSMITTER OF WIRELESS REMOTE CONTROL TO THE RECEIVER OF INDOOR UNIT FROM A CERTAIN LOCATION, CHECK THE FOLLOWING POINTS: 1- Avoid direct sunlight on the receiver of indoor unit, which may interfere with good signal reception 2- No obstructions such as curtains or plants should be between the remote control and the receiver of indoor unit. 3- The maximum operating range for the remote control is approximately 5 meters. 4- The remote control must be directed toward the receiver of indoor unit when pressing the buttons of the desired functions. An acoustical acknowledgement sound (beep) will indicate that signal has been received. 11
13. EMERGENCY OPERATION OF AIR-CONDITIONER INDOOR UNITS 42VMC14-18-24-30-36 SERIES 1 : Green Led 2 : Yellow Led 3 : Red Led 4 : Remote control signal receiver 5 : Emergency button Indoor unit LED s GREEN LED (1) shows the following conditions : - Fault codes (diagnostic); - During normal operation, the LED is lit. Once a failure occurs, the LED flashes at intervals of 0.5 seconds. The fault code is deduced from the number of times the LED flashes. Between one flash cycle and the next a pause of 5 seconds elapses. If the timer mode is active and the unit is immediately restarted after a stop, this LED flashes until a new signal is sent to the indoor unit. YELLOW LED (2) shows the operation in timer mode. During this operation in this operating mode, the LED is lit. If the time mode is active and the unit is immediately restarted after a stop, this LED flashes until a new signal is sent to the indoor unit. RED LED (3) gives the following information: - During normal operation, the LED is OFF; - During defrost the LED is lit; - During the test for wired connection, the LED flashes at 1- second intervals. Button (5) : EMERGENCY Can be used when the remote control is lost or inoperative. Use a screwdriver to press the push-button. Emergency operation: When the unit is in the OFF mode and the emergency is pressed for 5 seconds, the system will operate as follows: - Automatic mode. - Temperature preset to 22ºC. - Automatic fan speed. - Louvers set automatically according to operating mode. - Timer Functions are inactive. When a signal is received by the remote control, system operates accordingly. 12
14. STANDARD AND OPTIONAL AIR FILTERS 14-1 The indoor unit of the split air conditioner is factory supplied with standard anti-bacteria filters to eliminate dust and lint. 14-2 The optional set of air filters can be field installed inside the indoor unit. The optional set of air filters consists of 2 ( two ) filters: 1. Optional Active carbon air filter is particularly effective in eliminating odor. 2. Optional Photo-catalytic air filter effectively eliminates cigarette smoke in the room air. Active carbon air filter ( Black ) Photo catalytic air filter ( Blue ) Optional Air Filters Standard Air Filters Anti-bacteria 14-3 Installation steps of optional set of air filters Step (1): After opening return air grill, pull the standard air filters. Step (2): Install optional air filters inside the unit top in the guides specified for filters then install standard filters. Step (3): Install return air grille and close it downwards. 13
15. AIR FILTERS CLEANING - The air filters supplied with the unit are high-efficiency washable and recyclable filters. - To establish, how frequently these should be cleaned, the operating conditions must be taken in to account. - REMOVAL OF STANDARD AIR FILTERS FOR CLEANING: CONSOLE / UNDERCEILING INDOOR UNITS Open the return grille without removing the two screws and the central clamp from their position. Remove acrylic-fiber filters, carbon filter and photocatalytic filter for cleaning. A: Standard filters B: Carbon filter (Optional) C: Photo catalytic filter (Optional) B A C - CLEANING OF STANDARD AIR FILTERS: First clean the filter with a vacuum cleaner every month. And Rinse filter under running water, and dry it - CLEANING OF CARBON FILTER (OPTIONAL FILTER): First clean the filter by washing it under running water with a neutral detergent every three months. Leave the filter 2/3 hours to dry in sunlight - CLEANING OF PHOTOCATALYTIC FILTER (OPTIONAL FILTER): First clean the filter by washing it under running water without any detergent every three months. Leave the filter 6 hours to dry and regenerate in sunlight Notes: (1) After cleaning, put the filters back in the correct positions. (2) Before operating the air conditioner, check that air filters are in their places inside unit. (3) Replace carbon and photocatalytic filters every two years. 14
16. INDOOR UNIT CLEANING Turn the unit off and switch the mains supply off. Use only a clean, damp and soapy cloth. Do not pour any liquids on the unit. Do not use flammable liquid, solvents or abrasive powders: these can damage the casing. Avoid any contact with sources of heat, as hot air can damage the unit casing. Clean the infrared control using a damp cloth. 17. CONSIDERATIONS BEFORE A LONG SHUTDOWN PERIOD OF AIR CONDITIONER Keep the indoor unit in operation for half a day in the ventilation (fan only) mode in order to dry all internal parts. 12h Switch electric mains supply off. Take batteries out of the remote control. Clean indoor and outdoor units. Clean the air filters and reposition them in the unit. 15
18. PERIODICAL CHECKS For a good operation of the air conditioner it is recommended to carry out checks and maintenance as indicated. Recommended maintenance intervals may very depending on the installation environment, e.g. dusty zones, etc. Indoor Unit Every Month Every Year Clean air filter Clean drain pipe (2) Change controller batteries (1) Outdoor Unit Every Month Every Year Clean outdoor coil from outside (2) Clean outdoor coil from inside Blow air over electric parts (2) Check electric connection tightening (2) Clean fan wheel (2) Check fan tightening (2) Clean drain pan (2) (1) Increase frequency in dusty zones. (2) Operations to be carried out by qualified service personnel. 16
19. SELF DIAGNOSTIC FUNCTION FOR MALFUNCTION DETECTION EXPLAINATION OF SELF-DIAGNOSTIC FUNCTION Self-diagnostic function is the key for success of air conditioner operation. The printed circuit boards existing inside the indoor unit are equipped with self-diagnostic function to detect malfunction and automatically stops the operation at the air conditioner. Once a malfunction is detected, the diagnostic control section will force the system mode to OFF for 3 minutes. After the OFF delay, system mode releases and allowed returning to its normal state. The system will be allowed to restart on its own. The diagnostic control section will allow the system to fail 5 consecutive times before shutting down the system. If the system is performing an active defrost, both the compressor drive and reversing valve malfunction test will be cancelled and reinitiated after the following compressor OFF-ON cycle. The Unit on lamp is scanned every half-second and the error codes are displayed by the flashing frequency of unit on lamp. The error codes are displayed during SHUT-OFF (3 minutes off and after the 5th retry failure). 1 : Green led flashes if there is a malfunction 5 : Reset Button 1 5 Malfunction Reason Flashing Frequency Allowed Mode Return Air Sensor 3 Fan Only Indoor Coil Sensor 4 Fan Only Compressor Drive 9 Fan Only Electronic Control PCB (EEPROM) 10 Fan Only Notes : 1- Prior to the malfunction repair, disconnect the electrical mains supply by moving the circuit breaker to OFF position. 2- After repairing the malfunction: 2-1 Press Reset button (5) 2-2 connect the electrical main supply by moving the circuit breaker to ON position 2-3 operate the air conditioner by using the wireless remote control. 17
15. TROUBLE SHOOTING TROUBLE REASON ACTION After batteries have been placed into the remote control, the display is not lit. When pressing the recessed clock adjustment button, hour figures on display do not flash. When pressing any button, all symbols appear on display. When pressing start button, unit does not acknowledge signal with a beep. OR When pressing stop button, unit does not acknowledge signal with a beep. OR When pressing any function button, the remote control shows the function requested on the display, but unit does not acknowledge signal receipt with a beep and does not carry out the function. Batteries are exhausted or have the wrong polarity. Recessed button has not been pressed correctly. Recessed button for time setting is blocked due to excessive pressure during use. Remote control has been irreversibly damaged. Main switch is OFF. Remote control batteries are exhausted. Remote control has not been pointed correctly to the receiver of indoor unit. There are obstacles (curtains, walls, etc.) between the remote control and the indoor unit Receiver on the indoor unit or the remote control is under intense sun radiation. Signal transmission is obstructed by severe interference from an electromagnetic field. Replace batteries or check polarity. Press with a round point, avoid exerting strong pressure Check and repair. Replace with a new one. Switch it to ON position. Replace batteries. Turn remote control OFF and repeat the operation in the correct direction. Repeat the operation after having removed the obstacles. Avoid direct sun on the unit, shut curtains or shades. Avoid sending signals when computers or household appliances (Food processors, coffee makers, etc.) are operating close by cellular or cordless telephones may also interfere with the control. Air conditioner will not start. Main supply switch is OFF Fuses or main switch are blown Protection against frequent compressor cycling is ON Selected temperature is higher than the room temperature in the cooling mode (or lower in the heating mode). Switch to ON Replace fuses Wait for 3 minutes. Correct selected temperature. 18
TROUBLE SHOOTING (Cont.) TROUBLE REASON ACTION Air conditioner is not supplying enough cooling. Air conditioner is not supplying enough heating. Green LED is flashing A slight mist is emitted from the indoor unit during cooling A slight whistling noise is heard when the air conditioner starts or stops. Water vapor (mist) emanating from the outdoor unit. Unpleasant smells coming from the indoor unit. Strange noises coming from the indoor unit. Starting in heating mode for heat pump systems Air flow cannot circulate freely Dirty filters reduce air quantity circulating. Doors and/or windows are open. Fan speed has been set to Low Air flow direction is not correct Selected temperature is higher than the room temperature in the cooling mode. Air flow cannot circulate freely Dirty filters reduce air quantity circulating. Doors and/or windows are open. Fan speed has been set to Low Air flow direction is not correct Selected temperature is Lower than the room temperature in the heating mode. System malfunction. Contact service center after having made the following checks: Air filters are clean. Air circulation is not obstructed. Outdoor unit coil is not obstructed with a severe reduction of air circulation. The cool air from the indoor unit is coming into contact with the room air. This is due to the refrigerant beginning to circulate or an adjustment of the refrigerant pressures. It is normal in heat pump operation, when defrost is automatically activated. Unpleasant smells can be caused by substances accumulated in the air filters Occasionally the indoor unit can emit some strange short noises during operation or when it has stopped. These are generally due to the of temperature changes on the plastic parts. If the system starts at low ambient temperatures, it takes a little while to reach a comfortable room temperature. When the system is started by the remote control, it emits a signal beep, but the louvre does not swing and the fan does not run until the operating temperature has been reached. Remove obstructions. Clean air filters Close doors and windows Set fan speed at high speed. Adjust airflow direction as per the mode chosen. Correct selected temperature. Remove obstructions. Clean air filters Close doors and windows Set fan speed at high speed. Adjust airflow direction as per the mode chosen. Correct selected temperature. Refer to the installation manual for fault code reading to be notified to service center. Restart air conditioner after having corrected the faults. Normal operation Normal operation Normal operation Switch the system OFF and contact an authorized service center to have the filters cleaned. Restart unit in the ventilation (fan only) mode and open windows to change room air. Normal operation Normal operation 19
SERVICE & MAINTENANCE MANUAL Specifications are subject to change without notice according to Carrier Policy of continuous development. 03502567 Revision : (0) - 2009
TABLE OF CONTENTS PAGE NO. 1. Precautions for Service & Maintenance 1 2. Split System Description 2 3. Unit Model Designation 3 4. Unit Models & Part Numbers 3 5. Options 4 6. System Operating Limits 5 7. System Safety Protections 5 8. Wiring Diagrams 6 9. Field Electrical Connections Matching 7 10. Refrigeration Cycle 53QG Series 8 11. Replacing Batteries of Remote Control 10 12. Emergency Operation of Air-Conditioner 11 13. Standard and Optional Air Filters 12 14. Air Filter Cleaning 13 15. Indoor Unit Cleaning 14 16. Considerations After Operational Season and Before Long Shutdown Period Of Air Conditioner 17. Periodical Checks 15 18. Self Diagnostic Function For Malfunction Detection 16 19. Trouble Shooting 17 14
1. PRECAUTIONS FOR SERVICE AND MAINTENANCE SAFETY CONSIDERATIONS Installation and servicing of air conditioning equipment can be hazardous due to system pressures and electrical components. Only trained and qualified service personnel should install, repair or service the air conditioning equipment. When working on air conditioning equipment, observe precautions in the literature, tags and labels attached to the unit and other safety codes. Wear safety glasses and gloves. Use quenching cloth and have fire extinguisher available for all brazing operations! WARNING This installation manual describes the installation procedures of Carrier split room air conditioner consisting of an outdoor unit and an indoor unit manufactured by Carrier. What is not covered in Carrier warranty? 1- Failure due to wrong electrical connections between the electrical power supply and circuit breaker of air conditioner leading to fire due to short-circuiting. 2- Failure due to Misuse, Abusing, overloading, negligence of air filters cleaning and negligence of operation manual instructions. 3- Failure due to Accident / Weather Natural catastrophe, accident due to bad weather (Hail Storm, Sand Storm, lightning, Flooding, Acid Rain and Air Borne fallout, etc). 4- Failure due to Damages during transport done by customer and not by Carrier or one of its certified. 5- Failure due to any modifications en the product done by customer and not by Carrier or one of its certified dealers. 6- Failure due to Improper Installation done by customer and not by Carrier or one of its certified dealers. 7- Failure due to Improper Service and Maintenance done by customer and not by Carrier or one of its certified dealers. 8- Failure due to Improper repair by using non-genuine Carrier Parts, or substituting other than Carrier parts done by customer and not by Carrier or one of its certified dealers. 9- Product normal sound ( refrigerant moving parts ) 10- Inconvenience or commercial loss is not covered. The decision of Carrier in ascertaining the same will be final. Any such repairs will be carried out at the expense of the purchaser ( owner ). 1
2. SPLIT SYSTEM DESCRIPTION Floor/Wall/Ceiling Split System 53VMC30-36 8 Outdoor Unit 7 3 2 1 6 9 5 4 Indoor Unit 1: Remote control signal receiver. 2: Operating status leds. 6: Supply air outlet. 3: Supply air flap. 7: Characteristics nameplate. 4: Air return grille. 8: Inter connecting tubing. 5: Air filter ( behind return grille ). 9: Condensate drain line. 2
3. UNIT MODEL DESIGNATION 42 38 VMC 30 H C 42 = Indoor Unit 38 =Outdoor Unit Unit Family System Cooling Capacity At ISO Conditions 30 = 30,000 Btu/hr 36 = 36,000 Btu/hr Unit Type H = Heat Pump C = Cool Only 4. UNIT MODELS & PART NUMBERS SPLIT SYSTEMS FOR LOCAL MARKET HEAT PUMP System Indoor Unit Outdoor Unit Model P/N Model P/N Model P/N Compressor Type Supplier 53VMC30-H 46303478 42VMC30-H 46303296 38VMC30-H 46303120 Rotary Siam 53VMC36-H 46303479 42VMC36-H 46303297 38VMC36-H 46303121 Recip. Copeland SPLIT SYSTEMS FOR MILD AMBIENT EXPORT MARKETS HEAT PUMP COOL ONLY Indoor Unit Outdoor Unit Model P/N Model P/N Compressor Type Supplier 42VMC30-H 46303224 38VMC30-H 46303645 Rotary Siam 42VMC36-H 46303288 38VMC36-H 46303136 Recip. Copeland Indoor Unit Outdoor Unit Model P/N Model P/N Compressor Type Supplier 42VMC30-C 46303298 38VMC30-C 46303122 Recip. Copeland 42VMC36-C 46303299 38VMC36-C 46303123 Recip. Copeland SPLIT SYSTEM FOR HIGH AMBIENT EXPORT MARKETS HEAT PUMP COOL ONLY Indoor Unit Outdoor Unit Model P/N Model P/N Compressor Type Supplier 42VMC30-H 46303224 38VMC30-H 46303124 Recip. Copeland 42VMC36-H 38VMC36-H 46303136 Recip. Copeland Indoor Unit Outdoor Unit Model P/N Model P/N Compressor Type Supplier 42VMC30-C 46303298 38VMC30-C 46303122 Recip. Copeland 42VMC36-C 46303299 38VMC36-C 46303123 Recip. Copeland 3
5. OPTIONS DESCREPTION CONFIGURATION QTY USAGE Electrical Cables Set for Heat Pump System Main Power cable Outdoor Unit Circuit Breaker Power cable Outdoor Unit Indoor Unit Control & Defrost cable Outdoor Unit Circuit Breaker P/N : 02500894 Electrical Cables Set for Cool Only System Main Power cable Outdoor Unit Indoor Unit Power & Control cable Outdoor Unit Indoor Unit P/N : 02500893 Set of 3 Set of 2 To electrically connect between circuit breaker, outdoor and indoor units To electrically connect between circuit breaker, outdoor and indoor units Optional set of air filters (Carbon air filter + Photocatalytic air filter) P/N : 36302007 ( for 42VMC30-36 ) Set of 2 To eliminate odor and cigarette smoke in the room air respectively. PTC starting device for 38VMC30 P/N : 02501579 1 To start the compressor in outdoor unit at low voltage down 187V PTC starting device for 38VMC36 P/N : 02501578 1 To start the compressor in outdoor unit at low voltage down 187V Plastic holder for remote control 1 To mount remote control on the wall P/N : 02501547 Anchor screw and screw Floor Mount Grommets for indoor units 42VMC30-36 P/N : 02102211 P/N : 02803109 1 4 To fix Plastic holder for remote control on the wall To mount the indoor unit on the floor in case of impossibility of mounting the unit on the wall 4
6. SYSTEM OPERATING LIMITS * Difference COOLING Indoor temperature Maximum Minimum Outdoor temperature Maximum Minimum Dry Bulb Temp. C 32 21 55 20 Wet Bulb Temp. C 23 15 - - Difference HEATING Dry Bulb Temp. C Wet Bulb Temp. C Indoor temperature Maximum 27 - Outdoor temperature Maximum 21 - MAIN POWER SUPPLY Nominal Difference 200-240V/1PH/50HZ Min. Voltage 187 Max. Voltage 264 NOTES: * When the unit is operated above or below these limits for a long time, system diagnostics may detect a malfunction and the unit will not operate properly. ** During heat pump operation the system will undergo several defrost cycles to remove ice that might collect on the outdoor unit in very low ambient temperature. After completion of defrosts cycle, the system will normally operate. 7. SYSTEM SAFETY PROTECTION 7-1 FOR HEAT PUMP SYSTEM PROTECTION TYPE PROTECTION EFFECT OPERATION MODE WHEN ON Cold draft prevention Indoor fan off Heating mode During unit operation Defrost cycle Indoor fan off Heating mode During unit operation Indoor coil Freeze protection Compressor off Cooling mode During unit operation Against frequent Compressor cycling Compressor Time delay Cooling or heating modes At unit start-up or change of operating mode 7-2 FOR COOL ONLY SYSTEM PROTECTION TYPE PROTECTION EFFECT OPERATION MODE WHEN ON Indoor coil Freeze protection Compressor off Cooling mode During unit operation Against frequent Compressor At unit start-up or change Cooling mode Compressor cycling Time delay of operating mode 5
8. WIRING DIAGRAMS 6
WIRING DIAGRAMS (Cont.) 7
9. FIELD ELECTRICAL CONNECTIONS MATCHING - Connect the power supply to the outdoor unit and then get the power required for the indoor unit from the outdoor unit. - Refer to wiring diagrams and stickers-caution sticked inside the outdoor & indoor units. 9-1 CONNECTING ELECTRICAL WIRING FOR HEAT PUMP SYSTEM Indoor Unit LEGEND L N R C Earth Live power supply. Neutral power supply. Live connection indoor/outdoor unit. Neutral connection indoor/outdoor unit. Circuit Breaker Main Switch 200-240V ~ 50Hz Y Compressor control. O Reversing valve control. W2 Outdoor fan motor control. S Outdoor coil sensor. Outdoor Unit Sizes of electrical wires connecting outdoor and indoor units R C Y O W2 S 1 mm 2 1 mm 2 1 mm 2 1 mm 2 1 mm 2 1 mm 2 9-2 CONNECTING ELECTRICAL WIRING FOR COOL ONLY SYSTEM Indoor Unit LEGEND L N R C Y Earth Live power supply. Neutral power supply. Live connection indoor/outdoor unit. Neutral connection indoor/outdoor unit. Compressor control. R C Y Circuit Breaker Main Switch 200-240V ~ 50Hz Sizes of electrical wires connecting outdoor and indoor units R C Y 1 mm 2 1 mm 2 1 mm 2 R C Y Outdoor Unit 8
10. REFRIGERATION CYCLE 53VMC SERIES HEAT PUMP SYSTEM 9
REFRIGERATION CYCLE 53VMC SERIES (Cont.) COOL ONLY SYSTEM 10
11. CONSIDERATIONS FOR REMOTE CONTROL HOW TO INSERT BATTERIES: (a) Remove the cover of battery compartment at the back of the remote control by sliding it out in the direction of the arrow. (c) Press reset button with a sharp object if the remote control is not operating properly. (b) Mount the two-battery size AAA 1.5 Volt supplied with the remote control. Then close the cover of the battery component. Note: During mounting of batteries check battery symbols (+, -) indicated in batteries compartment. NOTES: 1. The remote control uses two alkaline batteries (1.5V, LRO03x2). 2. Do not use used batteries or batteries of different types, as this may cause the air conditioner to malfunction. 3. Batteries should only be changed after turning OFF the air conditioner. 4. The average battery life during normal use is approximately one year. 5. If the air conditioner does not operate normally after replacing the batteries, remove the batteries, refit them and press button O again after 5 seconds. 6. When the symbol appears in the display of the remote control, this indicates that the batteries are exhausted and required to be replaced INSTRUCTIONS WHEN USING WIRELESS REMOTE CONTROL 1- Avoid direct sunlight on the receiver of indoor unit, which may interfere with good signal reception and the air conditioner may not work properly. Draw the curtains to avoid direct sunlight. 2- No obstructions such as curtains, doors or other materials should be between the remote control and the receiver of indoor unit to avoid blocking the signals from the remote control to the unit. 3- The maximum operating range for the remote control is approximately 5 meters. 4- The remote control must be directed toward the receiver of indoor unit when pressing the buttons of the desired functions. You can hear acoustical acknowledgement sound (beep) will indicate that signal has been received. 11
13. EMERGENCY OPERATION OF AIR-CONDITIONER 1 : Green Led 2 : Yellow Led 3 : Red Led 4 : Remote control signal receiver 5 : Emergency button Indoor unit leds GREEN LED (1) shows the following conditions : - Fault codes (diagnostic); - During normal operation, the LED is lit. Once a failure occurs, the LED flashes at intervals of 0.5 seconds. The fault code is deduced from the number of times the LED flashes. Between one flash cycle and the next a pause of 5 seconds elapses. If the timer mode is active and the unit is immediately restarted after a stop, this LED flashes until a new signal is sent to the indoor unit. YELLOW LED (2) shows the operation in timer mode. During this operation in this operating mode, the LED is lit. If the time mode is active and the unit is immediately restarted after a stop, this LED flashes until a new signal is sent to the indoor unit. RED LED (3) gives the following information: - During normal operation, the LED is OFF; - During defrost the LED is lit; - During the test for wired connection, the LED flashes at 1- second intervals. EMEGENCY OPERATION (5) Can be used when the remote control is lost or inoperative. Use a screwdriver to press the push-button. Emergency operation: When the unit is in the OFF mode and the emergency is pressed for 5 seconds, the system will operate as follows: - Automatic mode. - Temperature preset to 22ºC. - Automatic fan speed. - Louvers set automatically according to operating mode. - Timer Functions are inactive. When a signal is received by the remote control, system operates accordingly. 12
14. STANDARD AND OPTIONAL AIR FILTERS 14-1 The indoor unit of the split air conditioner is factory supplied with standard anti-bacteria filters to eliminate dust and lint. 14-2 The optional set of air filters can be field installed inside the indoor unit. The optional set of air filters consists of 2 ( two ) filters: 1. Optional Active carbon air filter is particularly effective in eliminating odor. 2. Optional Photo-catalytic air filter effectively eliminates cigarette smoke in the room air. Active carbon air filter ( Black ) Photo catalytic air filter ( Blue ) Optional Air Filters Standard Air Filters Anti-bacteria 14-3 Installation steps of optional set of air filters Step (1): After opening return air grill, pull the standard air filters. Step (2): Install optional air filters inside the unit top in the guides specified for filters then install standard filters. Step (3): Install return air grille and close it downwards. 13
15. AIR FILTERS CLEANING - The air filters supplied with the unit are high-efficiency washable and recyclable filters. - To establish, how frequently these should be cleaned, the operating conditions must be taken in to account. - REMOVAL OF STANDARD AIR FILTERS FOR CLEANING: CONSOLE / UNDERCEILING INDOOR UNITS Open the return grille without removing the two screws and the central clamp from their position. Remove acrylic-fiber filters, carbon filter and photocatalytic filter for cleaning. A: Standard filters B: Carbon filter (Optional) C: Photo catalytic filter (Optional) - CLEANING OF STANDARD AIR FILTERS: First clean the filter with a vacuum cleaner every month. And Rinse filter under running water, and dry it - CLEANING OF CARBON FILTER (OPTIONAL FILTER): First clean the filter by washing it under running water with a neutral detergent every three months. Leave the filter 2/3 hours to dry in sunlight - CLEANING OF PHOTOCATALYTIC FILTER (OPTIONAL FILTER): First clean the filter by washing it under running water without any detergent every three months. Leave the filter 6 hours to dry and regenerate in sunlight Notes: (1) After cleaning, put the filters back in the correct positions. (2) Before operating the air conditioner, check that air filters are in their places inside unit. (3) Replace carbon and photocatalytic filters every two years. 14
16. INDOOR UNIT CLEANING Turn the unit off and switch the mains supply off. Use only a clean, damp and soapy cloth. Do not pour any liquids on the unit. Do not use flammable liquid, solvents or abrasive powders: these can damage the casing. Avoid any contact with sources of heat, as hot air can damage the unit casing. Clean the infrared control using a damp cloth. 17. CONSIDERATIONS BEFORE A LONG SHUTDOWN PERIOD OF AIR CONDITIONER Keep the indoor unit in operation for half a day in the ventilation (fan only) mode in order to dry all internal parts. 12h Switch electric mains supply off. Take batteries out of the remote control. Clean indoor and outdoor units. Clean the air filters and reposition them in the unit. 15
18. PERIODICAL CHECKS For a good operation of the air conditioner it is recommended to carry out checks and maintenance as indicated. Recommended maintenance intervals may very depending on the installation environment, e.g. dusty zones, etc. Indoor Unit Every Month Every Year Clean air filter Clean drain pipe (2) Change controller batteries (1) Outdoor Unit Every Month Every Year Clean outdoor coil from outside (2) Clean outdoor coil from inside Blow air over electric parts (2) Check electric connection tightening (2) Clean fan wheel (2) Check fan tightening (2) Clean drain pan (2) (1) Increase frequency in dusty zones. (2) Operations to be carried out by qualified service personnel. 16
19. SELF DIAGNOSTIC FUNCTION FOR MALFUNCTION DETECTION EXPLAINATION OF SELF-DIAGNOSTIC FUNCTION Self-diagnostic function is the key for success of air conditioner operation. The printed circuit boards existing inside the indoor unit are equipped with self-diagnostic function to detect malfunction and automatically stops the operation at the air conditioner. Once a malfunction is detected, the diagnostic control section will force the system mode to OFF for 3 minutes. After the OFF delay, system mode releases and allowed returning to its normal state. The system will be allowed to restart on its own. The diagnostic control section will allow the system to fail 5 consecutive times before shutting down the system. If the system is performing an active defrost, both the compressor drive and reversing valve malfunction test will be cancelled and reinitiated after the following compressor OFF-ON cycle. The Unit on lamp is scanned every half-second and the error codes are displayed by the flashing frequency of unit on lamp. The error codes are displayed during SHUT-OFF (3 minutes off and after the 5th retry failure). Indoor Units 42VMC Series 1 : Green led flashes if there is a malfunction 5 : Reset Button 5 1 Notes : Malfunction Reason Flashing Frequency Allowed Mode Return Air Sensor 3 Fan Only Indoor Coil Sensor 4 Fan Only Compressor Drive 9 Fan Only Electronic Control PCB (EEPROM) 10 Fan Only 1- Prior to the malfunction repair, disconnect the electrical mains supply by moving the circuit breaker to OFF position. 2- After repairing the malfunction: 2-1 Press Reset button (5) 2-2 connect the electrical main supply by moving the circuit breaker to ON position 2-3 operate the air conditioner by using the wireless remote control. 17
20. TROUBLE SHOOTING TROUBLE REASON ACTION Compressor and outdoor fan will not start Power failure Fuse blown or / and circuit breaker tripped Call power company Replace fuse or reset circuit breaker Detective contactor Check contactor and replace if necessary Low line voltage Determine cause and eliminate Incorrect or loose wiring Check wiring diagram and rewire correctly Temp. setting too low Reset temp. setting Compressor will not start, but Faulty wiring or loose connections in Check wiring and repair or correct outdoor fan runs compressor circuit Compressor motor burned out, stuck or internal over-load open Replace compressor and determine cause Detective run capacitor Check capacitor and replace if necessary Compressor runs bur cycles on internal overload (other than normally satisfying thermostat) Compressor operates continuously Discharge pressure is too high Discharge pressure is too low Suction pressure is too high Suction pressure is too low Refrigerant over or under charge Air or non condensable refrigerant in system Detective compressor Low or too high line voltage Blocked outdoor coil Outdoor fan stopped Detective run capacitor Faulty fan motor of outdoor section Restriction in refrigerant system Capillary or Accurate restricted or ice clogged. System undersized for load Temp. setting too low Defective outdoor fan Air or non condensable refrigerant in system Air restricted or indoor section filter dirty Dirty outdoor coil Detective outdoor fan Refrigerant over charged Air or non condensable refrigerant in system Outdoor section air restricted Low refrigerant charge Restriction in liquid tube Indoor section air filter dirty Reversing valve hung up or internal leak Internal pressure relief open Refrigerant over charged Low refrigerant charge Indoor unit frosted Low indoor air or short cycling Restriction in suction tube Capillary or accurate restricted or ice clogged Blow refrigerant, evacuate system and recharge Blow refrigerant, evacuate system and recharge Replace and determine cause Determine cause and correct Determine cause and replace Determine cause and replace Check capacitor and replace if necessary Check motor and replace if necessary Locate restriction and remove Blow refrigerant, evacuate system and recharge Decrease load or increase system size Reset temp setting Check for source and replace Blow refrigerant, evacuate system and recharge Clean filter or remove restriction Clean coil Check fan and replace if necessary Purge excess refrigerant Blow refrigerant, evacuate system and recharge Remove restriction Check for leaks, repair and recharge Remove restriction Clear filter Check reversing and replace if necessary Check for source and eliminate Purge excess refrigerant Check for leaks, repair and recharge See next trouble Eliminate cause, check for fan working Locate restriction and remove Blow refrigerant, evacuate system and recharge 18
TROUBLE SHOOTING (Cont.) TROUBLE REASON ACTION Outdoor fan stopped or cycling on Detective fan motor capacitor Replace overload Loose leads at fan motor Check for cause and eliminate Fan motor burned out Replace Motor bearing sized Check for cause and eliminate After batteries have been placed into the remote control, the display is not lit. When pressing the recessed lock adjustment button, hour figures on display do not flash. When pressing any button, all symbols appear on display. Batteries are exhausted or have the wrong Replace batteries or check polarity. polarity. Recessed button has not been pressed Press with a round point, avoid correctly. exerting strong pressure Recessed button for time setting is blocked due Check and repair. to excessive pressure during use. Remote control has been irreversibly damaged. Replace with a new one. When pressing start button, unit does not acknowledge signal with a beep. OR When pressing stop button, unit does not acknowledge signal with a beep. OR When pressing any function button, the remote control shows the function requested on the display, but unit does not acknowledge signal receipt with a beep and does not carry out the function. Main switch is OFF. Remote control batteries are exhausted. Remote control has not been pointed correctly to the receiver of indoor unit. There are obstacles (curtains, walls, etc.) between the remote control and the indoor unit Receiver on the indoor unit or the remote control is under intense sun radiation. Signal transmission is obstructed by severe interference from an electromagnetic field. Switch it to ON position. Replace batteries. Turn remote control OFF and repeat the operation in the correct direction. Repeat the operation after having removed the obstacles. Avoid direct sun on the unit, shut curtains or shades. Avoid sending signals when computers or household appliances (Food processors, coffee makers, etc.) are operating close by cellular or cordless telephones may also interfere with the control. 19
TROUBLE CHART (Cont.) TROUBLE REASON ACTION When pressing any button, display will not change The triangle symbols 2 is on, as another signal is being transmitted. Wait for signal 2 to disappear and repeat the operation. Air conditioner will not start. Main supply switch is OFF Switch to ON Fuses or main switch are blown Replace fuses Protection against frequent compressor cycling is ON Wait for 3 minutes. Selected temperature is higher than the Correct selected temperature. room temperature in the cooling mode (or lower in the heating mode). Air conditioner is not supplying Air flow cannot circulate freely Remove obstructions. enough cooling. Dirty filters reduce air quantity circulating. Clean air filters Doors and/or windows are open. Close doors and windows Fan speed has been set to Low Set fan speed at high speed. Air flow direction is not correct Adjust airflow direction as per the mode chosen. Selected temperature is higher than the Correct selected temperature. room temperature in the cooling mode. Air conditioner is not supplying Air flow cannot circulate freely Remove obstructions. enough heating. Dirty filters reduce air quantity circulating. Clean air filters Doors and/or windows are open. Close doors and windows Fan speed has been set to Low Set fan speed at high speed. Air flow direction is not correct Adjust airflow direction as per the mode chosen. Selected temperature is Lower than the room temperature in the heating mode. Correct selected temperature. 20
TROUBLE CHART (Cont.) TROUBLE REASON ACTION Green LED is flashing A slight mist is emitted from the indoor unit during cooling A slight whistling noise is heard when is heard when the air conditioner starts or stops. Water vapor (mist) emanating from the outdoor unit. Unpleasant smells coming from the indoor unit. Strange noises coming from the indoor unit. Starting in heating mode for heat pump systems System malfunction contact service center after having made the following checks: Air filters are clean. Air circulation is not obstructed. Outdoor unit coil is not obstructed with a service reduction of air circulation. The cool air from the indoor unit is coming into contact with the room air. This is due to the refrigerant beginning to circulate or an adjustment of the refrigerant pressures. It is normal in heat pump operation, when defrost is automatically activated. Unpleasant smells can be caused by substances accumulated in the air filters Occasionally the indoor unit can emit some strange short noises during operation or when it has stopped. These are generally due to the of temperature changes on the plastic parts. If the system starts at low ambient temperatures, it takes a little while to reach a comfortable room temperature. When the system is started by the remote control, it emits a signal beep, but the louvre does not swing and the fan does not run until the operating temperature has been reached. Refer to the installation manual for fault code reading to be notified to service center. Restart air conditioner after having corrected the faults. Normal operation Normal operation Normal operation Switch the system OFF and contact an authorized service center to have the filters cleaned. Restart unit in the ventilation (fan only) mode and open windows to change room air. Normal operation Normal operation 21