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TECHNICAL & SERVICE MANUAL
INDOOR UNIT: AWMI 28 AHL
DC INVERTER MULTI-SYSTEM AIR CONDITIONER
AWMI 28 AHL
AWMI 36 AHL
AWMI 50 AHL
AWMI 70 AHL
AWMI 36 AHL
AWMI 50 AHL
AWMI 70 AHL
Capacity
Indoor Model No.
2.8 kW
AWMI 28 AHL
3.6 kW
AWMI 36 AHL
5.0 kW
AWMI 50 AHL
7.0 kW
AWMI 70 AHL
Wall Mounted Type Indoor Unit
Destination: General area (50Hz)
Product Code No.
38 703 0011
38 703 0013
38 703 0014
38 703 0015
< Combined Outdoor unit >
AE2MI56AH (2-room multi unit)
AE3MI70AH (3-room multi unit)
AE4MI91AH (4-room multi unit)
NOTE
1. The indoor unit AWMI 70 AHL can only
be combined with a 4-room multi unit.
Therefore, do not combine it with a 2-
room multi unit or 3-room multi unit.
2.
For details about the combinations, refer to
"Unit Combination Table" in the T. Service
Manual for the Multi Outdoor Units.
IMPORTANT
These air conditioners employ
new refrigerant R410A.
Pay special attention when
servicing the unit.
NOV.2003
Europe (50Hz)
Australia (50Hz)
General area (60Hz)
W
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Summary of Contents for Argo AWMI 28 AHL
- Page 1 TECHNICAL & SERVICE MANUAL INDOOR UNIT: AWMI 28 AHL NOV.2003 AWMI 36 AHL AWMI 50 AHL Destination: General area (50Hz) Europe (50Hz) AWMI 70 AHL Australia (50Hz) General area (60Hz) DC INVERTER MULTI-SYSTEM AIR CONDITIONER Capacity Indoor Model No. Product Code No.
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Page 2: Table Of Contents
Table of Contents Page 1. OPERATING RANGE ..........................1 2. SPECIFICATIONS 2-1. Unit Specifications .......................... 2 2-2. Major Component Specifications....................6 2-3. Other Component Specifications....................9 3. DIMENSIONAL DATA..........................10 4. REFRIGERANT FLOW DIAGRAM ......................13 5. PERFORMANCE DATA 5-1. Air Throw Distance Chart ....................... 14 6. -
Page 3: Please Read Before Starting
Important! When Transporting Be careful when picking up and moving the indoor and Please Read Before Starting outdoor units. Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp This air conditioning system meets strict safety and edges or thin aluminum fins on the air conditioner can operating standards. -
Page 4: Operating Range
1. OPERATING RANGE Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp. Maximum 32°C D.B. / 23°C W.B. 43°C D.B. Cooling Minimum 19°C D.B. / 14°C W.B. 19°C D.B. Maximum 27°C D.B. 24°C D.B. / 18°C W.B. Heating Minimum 16°C D.B. —... -
Page 5: Specifications
2. SPECIFICATIONS 2-1. Unit Specifications Indoor Unit AWMI 28 AHL Type Wall hang type indoor unit Power Source 220–240V ~ 50Hz 220V ~ 60Hz Voltage rating 230 V 220 V Performance Cooling Heating Cooling Heating Capacity 2.8 ( 0.7 - 3.2 ) 4.0 ( 0.9 - 5.4 ) - Page 6 Indoor Unit AWMI 36 AHL Type Wall hang type indoor unit Power Source 220–240V ~ 50Hz 220V ~ 60Hz Voltage rating 230 V 220 V Performance Cooling Heating Cooling Heating Capacity 3.6 ( 0.8 - 3.6 ) 4.8 ( 0.9 - 6.3 ) 3.6 ( 0.8 - 3.6 ) 4.8 ( 0.9 - 6.3 ) Air circulation (Hi / Me / Lo)
- Page 7 Indoor Unit AWMI 50 AHL Type Wall hang type indoor unit Power Source 220–240V ~ 50Hz 220V ~ 60Hz Voltage rating 230 V 220 V Performance Cooling Heating Cooling Heating Capacity 5.0 (1.1 - 5.8 ) 7.1 ( 1.2 - 7.8 ) 5.0 (1.1 - 5.8 ) 7.1 ( 1.2 - 7.8 ) Air circulation (Hi / Me / Lo)
- Page 8 Indoor Unit AWMI 70 AHL Type Wall hang type indoor unit Power Source 220–240V ~ 50Hz 220V ~ 60Hz Voltage rating 230 V 220 V Performance Cooling Heating Cooling Heating Capacity 7.0 (1.5 - 8.1 ) 8.0 (2.0 - 8.8 ) 7.0 (1.5 - 8.1 ) 8.0 (2.0 - 8.8 ) Air circulation (Hi / Me / Lo)
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Page 9: Major Component Specifications
2-2. Major Component Specifications 2-2-1. Indoor Unit Indoor Unit AWMI 28 AHL Control PCB Part No. POW-K5DHV5-A1 Controls Microprocessor Control circuit fuse 2.50V 3.15A Remote Control Unit RCS-3MVHPS4E Fan & Fan Motor Type Fan / Fan motor Cross-flow / DC motor Q’ty …... - Page 10 Indoor Unit AWMI 36 AHL AWMI 50 AHL Control PCB Part No. POW-K5DHV5-A Controls Microprocessor Control circuit fuse 2.50V 3.15A Remote Control Unit RCS-3MVHPS4E Fan & Fan Motor Type Fan / Fan motor Cross-flow / DC motor Q’ty … Dia. and length 1 …...
- Page 11 Indoor Unit AWMI 70 AHL Control PCB Part No. POW-KMRV243GJ Controls Microprocessor Control circuit fuse 2.50V 3.15A Remote Control Unit RCS-3MVHPS4E Fan & Fan Motor Type Fan / Fan motor Cross-flow / AC motor Q’ty … Dia. and length 1 … D100 Fan motor model …...
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Page 12: Other Component Specifications
2-3. Other Component Specifications Indoor Unit AWMI 28 AHL AWMI 36 AHL AWMI 50 AHL AWMI 70 AHL • Indoor heat exchanger sensor • Indoor air temp sensor 10 20 30 40 50 60 70 80 90 Temperature (°C) Temperature (°C) •... -
Page 13: Dimensional Data
3. DIMENSIONAL DATA Indoor Unit AWMI 28 AHL Remote control unit 128.5 58.5 Center of tubing Drain hose ø16 hole (2 places) Narrow tube ø6.35 (1/4") Wide tube ø9.52 (3/8") 14.3 unit: mm... - Page 14 Indoor Unit AWMI 36 AHL AWMI 50 AHL 27.5 27.5 Remote control unit 58.5 93.5 Drain hose ø16 Center of tubing hole (2 places) Narrow tube ø6.35 (1/4") Wide tube ø9.52 (3/8") 14.3 unit: mm...
- Page 15 Indoor Unit AWMI 70 AHL 1,140 Remote control unit Center of tubing hole (2 places) Narrow tube ø6.35(1/4") Wide tube ø12.7 (1/2") 14.3 Drain hose ø18 unit: mm...
- Page 16 AWMI 28 AHL AWMI 36 AHL AWMI 50 AHL AWMI 70 AHL...
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Page 17: Performance Data
5. PERFORMANCE DATA 5-1. Air Throw Distance Chart Indoor Unit AWMI 28 AHL Cooling Room air temp. : 27°C Fan speed High Horizontal distance (m) : Flap angle 0° , : Axis air velocity 0° : Flap angle 30°, : Axis air velocity 30°... - Page 18 Indoor Unit AWMI 36 AHL Cooling Room air temp. : 27°C Fan speed High Horizontal distance (m) : Flap angle 0° , : Axis air velocity 0° : Flap angle 30°, : Axis air velocity 30° Heating Room air temp. : 20°C Fan speed High...
- Page 19 Indoor Unit AWMI 50 AHL Cooling Room air temp. : 27°C Fan speed High Horizontal distance (m) : Flap angle 0° , : Axis air velocity 0° : Flap angle 30°, : Axis air velocity 30° Heating Room air temp. : 20°C Fan speed High...
- Page 20 Indoor Unit AWMI 70 AHL Cooling Room air temp. : 27°C Fan speed High Horizontal distance (m) : Flap angle 0° , : Axis air velocity 0° : Flap angle 30°, : Axis air velocity 30° Heating Room air temp. : 20°C Fan speed High...
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Page 21: Electrical Data
6. ELECTRICAL DATA 6-1. Electrical Characteristics To avoid electrical shock hazard, be Indoor Unit AWMI 28 AHL sure to disconnect power before WARNING checking, servicing and/or cleaning any electrical parts. Inter-unit cables Terminal board W(BK) heat exchanger Room temperature Flap motor... - Page 22 To avoid electrical shock hazard, be sure to disconnect power before WARNING checking, servicing and/or cleaning Indoor Unit AWMI 36 AHL any electrical parts. AWMI 50 AHL Inter-unit cables Terminal board W(BK) heat exchanger Room temperature Flap motor sensor Heat exchanger temperature sensor Fan motor Humidity sensor...
- Page 23 To avoid electrical shock hazard, be Indoor Unit AWMI 70 AHL sure to disconnect power before WARNING checking, servicing and/or cleaning any electrical parts. Fan motor B L K W H T G R N / Y E L W H T Terminal plate Connector...
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Page 24: Installation Instructions
7. INSTALLATION INSTRUCTIONS Installation Site Selection 7-1. Indoor Unit To prevent abnormal heat WARNING generation and the possibility of fire, do not place obstacles, enclosures, and grilles in front of or surrounding the air conditioner in a way that may block air flow. -
Page 25: Connecting Indoor Units
● install in a sturdy manner to avoid increased Tubing length (L1) INDOOR operating noise. UNIT (1) INDOOR ● install the unit within the maximum elevation UNIT (2) difference (H1, H2, H3, H4) above or below the Elevation difference (H1) OUTDOOR outdoor unit and within a total tubing length (L1+L2, UNIT... - Page 26 (2) Connecting indoor unit types (28 - 36 - 50) for AE3MI70AH Note: It is not possible to connect the outdoor unit for 3 rooms to indoor unit type 70. Outdoor unit Indoor unit φ6.35 (28 - 36 types) φ9.52 φ6.35 φ9.52 (28 - 36 types)
- Page 27 (B) Connecting indoor unit type 50 at D (Length of tube: more than 17 m) Indoor unit Outdoor unit φ6.35 (28 - 36 types) φ9.52 φ9.52 φ6.35 (28 - 36 types) φ9.52 φ9.52 φ6.35 (28 - 36 types) φ9.52 φ9.52 φ6.35 (50 type) φ12.7...
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Page 28: Test Run
7-3. Test Run (1) Turn the indoor unit selector switch to the “ON” position. (Fig. 5) (2) With the remote controller, start heating or cooling operation. (3) Turn the selector switch to “TEST RUN.” (The indicator lamp blinks during test run operation.) Fig. -
Page 29: Functions
8. FUNCTIONS 8-1. Operation Functions ■ Functions of the main unit controller ■ SENSOR DRY 1 OFF During automatic operation, the system adjusts the room : • Used to stop the unit when the remote temperature and fan speed according to the conditions in the (Self-diagnostics) controller is unavailable. -
Page 30: On Timer Operation
■ HIGH POWER ■ Lamp colors Raises the power but remains in the same operating mode. Operation lamp This function is set with the HIGH POWER button on the remote HEAT operation : Red controller. (It is set regardless of the temperature and fan speed settings.) DRY operation : Orange ●... -
Page 32: Troubleshooting
9. TROUBLESHOOTING ■ Precautions before performing inspection or repair ● After checking the self-diagnostics monitor, turn the power OFF before starting inspection or repair. ● High-capacity electrolytic capacitors are used inside the outdoor unit controller (inverter). They retain an electrical charge (charging voltage DC 280 V) even after the power is turned OFF, and some time is required for the charge to dissipate. - Page 33 Details of Self-Diagnostics When the operation selector on the indoor unit is moved from the ON or TEST position to the OFF (Self-diagnostics) position, the indicator lamps on the indoor unit will flash (or remain ON) for 5 seconds and then turn OFF for 2 seconds (buzzer sounds once) to indicate the presence of a sensor failure or the activation of a protective function.
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Page 34: Checking The Indoor And Outdoor Units
■ If the self-diagnostics function fails to operate • No indicators illuminate and the Check the indoor unit. indoor fan does not turn. • Check the power voltage. Blown Is the fuse blown? Normal Replace the circuit board or the fuse. Replace the controller. -
Page 35: Noise Malfunction And Electromagnetic Interference
<Noise malfunction and electromagnetic interference> An inverter A/C operates using pulse signal control and high frequencies. Therefore, it is susceptible to the effects of external noise, and is likely to cause electromagnetic interference with nearby wireless devices. A noise filter is installed for ordinary use, preventing these problems. However, depending on the installation conditions, these effects may still occur. -
Page 36: Appendix
INSTRUCTION MANUAL APPENDIX Wall Mounted Type Indoor Unit... - Page 37 Features This air conditioner is equipped with cooling, heating, and drying functions. Details on these functions are provided below; refer to these descriptions when using the air conditioner. Microprocessor Controlled Operation Air Sweep Control The interior compartment of the remote control This function moves a flap up and down in the air outlet, directing air in a sweeping motion unit contains several features to facilitate...
- Page 38 Contents Page Features ......................2 Product Information ..................3 Alert Symbols ....................3 Installation Location ..................4 Electrical Requirements .................. 4 Safety Instructions ..................4 Names of Parts ....................5 Using the Remote Control Unit ..............11 Operation with the Remote Control Unit ............ 12 1.
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Page 39: Installation Location
Installation Location We recommend that this air conditioner be installed properly by qualified installation technicians in accordance with the Installation Instructions provided with the unit. Before installation, check that the voltage of the electric supply in your home or office is the same as the voltage shown on the nameplate. Do not install this air conditioner where there are fumes or flammable gases, or in an extremely humid space such as a greenhouse. -
Page 40: Names Of Parts
Names of Parts Air intakes INDOOR UNIT Air outlet Remote control unit Drain hose Refrigerant tubes OUTDOOR UNIT Air outlet This illustration is based on the external view of a standard model. NOTE Consequently, the shape may differ from that of the air conditioner which you have selected. -
Page 41: Unit Display And Operation Selector
Unit Display and Operation Selector AWMI 28 / 36 / 50 AHL AWMI 70 AHL INDOOR UNIT Operation INDOOR UNIT selector Operation selector TIMER OPERATION lamp lamp SERVICE TIMER OPERATION REMOTE CONTROL lamp lamp lamp recelver IMPORTANT Avoid using radio equipment such as mobile phone near (within 1 m) the remote control receiver. -
Page 42: Remote Control Unit (Display)
Remote Control Unit (Display) Displayed when setting temperature in automatic operation Displayed when transmitting data Displayed when indoor unit sensor is in use Displayed when setting temperature Displayed when setting timer Symbols (1) Operation mode (5) ECONOMY ......AUTO ........(6) High power operation ... -
Page 43: Remote Control Unit
Remote Control Unit Sensor Transmitter (Cover closed) Display ON/OFF operation button HIGH POWER button 1 HR. TIMER button Temperature setting buttons (TEMP .) ECONOMY button OFF TIME setting button ON TIME setting button MODE selector button Return button FAN SPEED selector button Advance button FLAP button SET button... - Page 44 Remote Control Unit (continued) No display : The timer does not operate. ON TIME/OFF TIME setting buttons : The air conditioner stops at the set time. : The air conditioner starts at the set time. : The air conditioner stops and starts, or starts and stops, at the set times every day.
- Page 45 Remote Control Unit (continued) ADDRESS switch • Change the address switch to prevent mixing of signals from remote control units when two Sanyo air conditioners are installed next to each other. Normally, the address switch is set to A. When switching the adress, take the steps listed below.
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Page 46: Using The Remote Control Unit
Using the Remote Control Unit How to Install Batteries 1. Slide the cover in the direction indicated by the arrow and remove it. 2. Install two AAA alkaline batteries. Make sure the batteries point in the direction marked in the battery compartment. -
Page 47: Operation With The Remote Control Unit
Operation with the Remote Control Unit 1. Automatic Operation STEP 2 STEP 3 STEP 1 STEP 1 Press the MODE selector button and select (AUTO). STEP 2 Press the ON/OFF button and switch the air conditioner ON. STEP 3 Press the temperature setting buttons (TEMP .). The air conditioner starts operating after automatically selecting the type of operation —whether heating, drying (dehumidifying) or cooling—that suits the conditions in the room, and automatically adjusting the temperature, fan speed and airflow direction. -
Page 48: Manual Operation
Operation with the Remote Control Unit (continued) As shown in the figure below, the automatic selection of the operating modes is determined by the indoor temperature and outside air temperature. Temperature setting Indoor temperature (standard) Approx. Approx. Approx. 27°C 15°C 22°C Cooling Approx. - Page 49 Operation with the Remote Control Unit (continued) STEP 1 Press the MODE selector button and select the desired mode. For heating operation For dehumidifying operation For cooling operation STEP 2 To start the air conditioner, press the ON/OFF operation button. STEP 3 Press the temperature setting buttons to change the temperature setting to the desired temperature.
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Page 50: Adjusting The Fan Speed
Operation with the Remote Control Unit (continued) 3. Adjusting the Fan Speed A. Automatic Simply set the FAN SPEED selector button to the position. B. Manual If you want to adjust fan speed manually during operation, just set the FAN SPEED selector button as desired. [ , or 4. - Page 51 Operation with the Remote Control Unit (continued) A. In Cooling and DRY When the ECONOMY mode is selected, the air conditioner Mode: ( and ) automatically raises the temperature setting 1 °C when 60 minutes have passed after the selection was made. This enables you to save energy without sacrificing comfort.
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Page 52: Special Remarks
Special Remarks Power failure • In the event of power failure, the unit will stop. Though the power is during operation resumed, the unit will not restart automatically. Press the ON/OFF operation button and restart the unit again. Clicking Sound •... -
Page 53: Setting The Timer
Setting the Timer 1. How to set the present (Example) To set to 10:30 pm. time Operation Indication 1. Press the CLOCK button three The time indication alone blinks. times. 2. Press the Advance, Return ( , ) The time can be set in 1-minute button until PM 10:30 is increments. - Page 54 Setting the Timer (continued) NOTE • The timer can be programmed while the unit is operating or while it is stopped. • A timer program is canceled after the timer has operated. So the timer should be set every time programming operation is to be performed.
- Page 55 Setting the Timer (continued) 4. How to set DAILY ON/ (Example) To start operation at 7:10 am. and stop the air conditioner at OFF REPEAT timer 11:00 am. 7:10 am. 11:00 am. Present time Indication Operation 1. Set the timer ON/OFF times as The present time 10:30 pm.
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Page 56: Setting The 1-Hour Off Timer
Setting the 1-Hour OFF Timer 1. 1-Hour OFF Timer This function causes the unit to operate for one hour and then stop, regardless of whether the unit is on or off when this button is pressed. indicator in the display indicates that this function is operating. Setting the 1-Hour OFF Timer: Regardless of whether the unit is operating or stopped, press the 1 HR. -
Page 57: Tips For Energy Saving
Setting the HIGH POWER Operation (continued) NOTE Concerning HIGH POWER During a heating operation • The room is heated for 15 minutes by warm air which has a slightly operations higher temperature than usual. • When the HIGH POWER button is pressed during a defrosting operation, the unit enters the HIGH POWER operating mode upon completion of the defrosting operation. -
Page 58: Adjusting The Airflow Direction
Adjusting the Airflow Direction 1. Horizontal The horizontal airflow can be adjusted by moving the vertical vanes with your hands to the left or right. When the humidity is high, the vertical vanes should be in the front CAUTION position during the cooling or dehumidifying operation. If the vertical vanes are positioned all of the way to the right or left, condensation may begin to form around the air vent and drip down. -
Page 59: Operation Without The Remote Control Unit
Operation without the Remote Control Unit If you have lost the remote control unit or it has trouble, follow the steps INDOOR UNIT below. 1. When the air conditioner is not running If you want to turn on the air conditioner, switch the operation selector to the OFF position, and then to the ON position. - Page 60 Care and Cleaning (continued) Anti-Mold Filter The anti-mold filter behind the air intake grille should be checked and cleaned at least once every two weeks. How to remove the 1. Grasp both ends anti-mold filter of the air intake Air intake grille grille and pull it out and up.
- Page 61 Care and Cleaning (continued) Air Cleaning Filter The air cleaning filter removes dust and dirt from the air, and reduces odors and smoke from tobacco. This air cleaning filter cannot remove harmful gases or vapors nor ventilate air in the room. You must open doors or windows frequently when you use gas or oil heating appliances.
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Page 62: Troubleshooting
Troubleshooting If your air conditioner does not work properly, first check the following points before requesting service. If it still does not work properly, contact your dealer or service center. Trouble Possible Cause Remedy 1. Power failure. 1. Restore power. Air conditioner does not run at all. - Page 63 ARGOCLIMA SPA GALLARATE-ITALY...
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