Introduction Table of Contents Safety Precautions ................................4 4 ................................Warning and Caution Icons ................................Introduction to System ................................Specifications for Proper Operation Theory of Operation ................................INTRODUCTION PAGE 3...
Safety Precautions · Read these Safety Precautions carefully to ensure correct installation. Failure to follow any WARNING is likely to result in grave consequences such as death or serious injury. WARNING: Failure to follow any CAUTION may in some cases result in grave consequences. CAUTION: The following safety symbols are used throughout this manual: Be sure to observe this instruction...
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Introduction Introduction to System The inverter compressor system in the outdoor unit will vary Single Zone Ductless Split System Heat Pumps feature a wall the refrigerant flow and indoor air volume levels to match mounted indoor fan/evaporator unit that receives refrigerant the cooling requirement inside the conditioned space.
Outdoor Unit Introduction The outdoor condensing unit models are heat pump systems. The outdoor unit has two circuit boards, a Module Board that drives the compressor and a Main Control Board that manages system functions and inverter calculations. Temperature sensors monitor key temperatures throughout the system to manage operational decisions. 4-Way Valve Accumulator Compressor...
Outdoor Control Board PCB (1) (Outdoor Control PCB) CN1,CN2-Connector for power N and L CN3-Connector for ground CN22-Connector for DC POWER 15V and 5V to the module board CN8,CN9-Connector for CN8 CN9 on the module board CN21-Connector for fan motor CN10-Connector for four way valve coil CN18,CN20-Connector for thermistors CN23-Communication connector for control...
Compressor Terminal Block The 18K and 24K units are 208/230 volt single phase. The The compressor is a three phase DC inverter driven rotary 9K and 12K units are 120 volt. All models use terminals 1 type. The compressor is capable of variable speed operation. and 2 as incoming power wiring.
Discharge Temperature Sensor Outdoor Ambient Temperature Sensor The Outdoor Ambient Temperature Sensor is a negative The Discharge Temperature Sensor is a negative coefficient coefficient thermistor that will change resistance in response thermistor that senses the temperature of the compressor to outdoor air temperature changes. The Main Control Board hot gas.
During COOL MODE operation, the valve meters low 4-Way Valve pressure refrigerant to the indoor coil. During HEAT MODE operation, the valve meters low pressure refrigerant to the outdoor coil. Accumulator The 4-Way Valve redirects the flow of refrigerant in the piping circuit to allow the system to reverse the functions of the indoor and outdoor coils.
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Indoor Unit Controls & Components Table of Contents Indoor Unit Introduction ..............................14 ............................. 14 Indoor Control Board ................................ 15 Terminal Block .................................. 16 Display ..................................... 16 Ambient Temperature Sensor ............................16 Piping Temperature Sensor .............................. 16 Louver Motor ................................... 17 Fan Motor ..................................
Indoor Unit Introduction The indoor unit is mounted high on the wall to provide conditioned air to the space.Features of the system include: variable speed blower operation that speeds up and slows down with changes in demand,moving louvers to direct air, indoor air temperature sensing, evaporator coil temperature sensing, consumer operation display,evaporator coil with metering device located in outdoor unit, and an emergency operation switch.
Indoor Control Board CN21, CN52-Connector for power N and L SW1- Connector for Emergency operation ON/OFF switch SW2-1-Select remote code A or B CN23-Connector for communication between 2-Select enable or disable room card. indoor and outdoor unit 3,4- Select EEPROM code 22,25,33 or 35 CN6-Connector for thermistors CN3,CN1-Connector for Transformer CN8, CN9-Connector for fan motor...
Terminal Block Ambient Temperature Sensor The indoor unit terminal block receives electrical power from the outdoor unit. There are 4 connections for electrical wires. The Room Ambient Temperature Sensor is a negative Terminals 1 and 2 are connected to terminals 1 and 2 of the coefficient thermistor that will decrease in resistance with outdoor unit.
Stepper Motor and Louver Emergency Button The Stepper Motor moves the louver up and down. The motor is connected to the Indoor Control Board at Plug CN-11. Louver left and right funcution is not available for If the remote control is non-functional, the Emergency Tempo series Button can be accessed by swinging open the front of the wall unit.
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Remote Control Functions Table of Contents Remote Controller ................................20 REMOTE CONTROL FUNCTIONS PAGE 19...
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Note: Remote Controller 785%248,(7 PRGHV DUH RQO\ DYDLODEOH ZKHQ WKH XQLW LV XQ- der cooling or heating mode (not for auto or fan mode). Running the unit in QUIET mode for a long period of time may cause the room temperature to not reach the set WHPSHUDWXUH ,I WKLV RFFXUV FDQFHO 48,(7 PRGH DQG VHW WKH fan speed to a higher setting.
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Air Flow Direction Adjustment this setting. Press the SWING UP/DOWN button to choose the position of BLANK 0.5h 0.5h 0.5h 0.5h TIMER OFF-ON TIMER ON TIMER OFF TIMER ON-OFF Cancel TIMER ON setting: COOL/DRY: button once to cancel the TIMER ON. the OFF setting HEAT: will look like this on the remote control display:...
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According to the Time setting sequence of TIMER ON or by the contractor. C) Fan Mode - Is indicated by the SLEEP Button Sleep mode changing the fan settings. button to enter additional button to 1. Press the ON/OFF button on the remote control to turn enter the sleep function.
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HEALTH Button Optimizing Performance Feature not available on this series. Do not block the air inlet during operation or outlet Function: Setting and canceling timer and other functions. LOCK Button During cooling operation prevent direct sunlight Used to lock buttons and LCD display with curtains or blinds LIGHT Button Wring excess water out of the cloth...
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Problem Cause and Solutions The system The unit will wait for 3 minutes before starting if it is powered off or the electricity has been does not restart disconnected. immediately Under some circumstances small sounds may be heard. A swishing or gurgling sound may be caused Noise is heard by refrigerant flowing through the piping.
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Sequence of Operation Table of Contents System Power .................................. 26 Cool Mode ..................................26 Overview ......................................26 Indoor Unit ..................................... 26 Temperature Sensors ..................................26 Communication ..................................... 26 Outdoor Unit ....................................26 Temperature Sensors ..................................27 Call to Terminate Cooling ................................27 Freeze Protection Function ................................
Indoor Unit System Power To enter the cool mode, point the infrared remote control at The 240 VAC power for the system connects to terminals the indoor unit and press the power button, then press the 1(N), 2(L), and ground of the outdoor unit terminal block. This COOL mode button if not already set to cool mode.
operating parameter and the call is communicated from the The outdoor unit main board also controls the position of the indoor unit to the outdoor unit. EEV (Electronic Expansion Valve) to regulate the flow of refrigerant to the indoor unit evaporator The indoor unit louver will open using a stepper motor.
ambient and tube, provide information to the outdoor control Temperature Sensors board to monitor the coil and regulate the frequency of The indoor unit has two sensors that provide temperature the compressor, EEV positioning, and outdoor fan speed to information to the indoor unit main board;anindoor ambient t achieve the desired room temperature.
The compressor discharge sensor provides the temperature the indoor unit and press the power button, then press the sensed at the discharge pipe of the compressor. DRY mode button if not already set to dry mode. The signals received by the infrared receiver are relayed to Call to Terminate Heating the main board of the indoor unit to turn the system on and The system will call to terminate heating when the indoor...
seconds. Temperature Sensors 2. The condenser maintains a temperature above 54°F for 5 Four temperature sensors located in the outdoor unit provide seconds. temperature information to the outdoor unit main board for control of the system during dry mode. Upon exiting the defrost cycle, the following conditions will take place: The outdoor ambient temperature sensor provides the temperature of the air drawn into the condenser coil of the...
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149°F The compressor stops Fgh_t1 65 59°F // ice_temp_3+5 Fgh_t1 2 138°F Fgh_t2 2 N Decreasing the frequency rapidly Fgh_t2 59 48°F Increasing slowly 131°F P Decreasing the frequency slowly Fgh_t3 Fgh_t3 2 46°F // ice_temp_3+2 124°F Fgh_t4—2 Q Prohibiting increasing the frequency Fgh_t4 Keeping the frequency 43°F R Increasing slowly...
Step 1 - Preparation Required Tools for Installation Procedure for Selecting the Location ma\ EH D HFWHG E\ PRLVture. Note: Outdoor sections cannot be stacked. detector If installing on a roof, install guard rails or fencing per local code. Flaring tool suitable for R410-A place.
Step 2 - Installation of the Indoor Unit Attaching the Mounting Plate to the Wall Step 2.1 Using a stud sensor, locate and mark the stud positions in the wall where the indoor unit is to be mounted. Step 2.2 Place the mounting plate on the wall in the desired location taking into account the minimum clearances necessary for Step 2.1...
Mounting the Indoor Unit Onto the Wall Plate Step 2.9 With the top of the indoor unit closer to the wall, hang the indoor unit on the upper hooks of the mounting plate. Slide the unit slightly side to side to verify proper placement of the indoor unit on the mounting plate.
Step - 3.3 Connect the wiring for both the power source and indoor wiring. Wire the system according to applicable national / local codes. Verify that the wiring connections for the indoor unit match wire for wire. Step 3.3 Step 3.4 (1-1, 2-2, 3-3, Gnd-Gnd).
Step 5 - Leak Test and Evacuation Leak Test refrigerant leaks. Explosive conditions may occur. Use a leak test solution or other approved methods for leak testing. Failure to follow recommended safe leak test procedures could result In death Use only dry nitrogen with a pressure regulator for pressurizing unit.
piping hole. Use a sealant to seal the piping hole opening to prevent weather elements from entering the building. (Illustration 6) Less than Verify the condensate drain line has a constant pitch It becomes The end is imm- There is the bad It waves.
Recommend that the user read the OPERATING INSTRUCTIONS carefully. Section 8 - System System 09TE 12TE 18TE 24TE Model Name Outdoor 1U09TE1VHA 1U12TE1VHA 1U18TE2VHA 1U24TE2VHA Indoor AW09TE1VHA AW12TE1VHA AW18TE2VHA AW24TE2VHA Rated Capacity Btu/hr 9,000 12,000 18,000 24,000 Capacity Range Btu/hr 3,800~12,000 4,100~12,500 5,000~19,000 6,500~26,000...
Indoor Unit Display Error codes will be display on the indoor unit in place of the set temperature. Code Indication Indoor Display panel code indication Outdoor Fault Description (LED1 Only For 498 and flash Other 498A display times) display (Red/Green Time Run Indoor and Communication fault between indoor Outdoor...
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Indoor AC Fan Motor Malfunction Indoor Display This is caused by an indoor motor or indoor PCB fault Spare Parts: Indoor PCB Change indoor PCB and Indoor motor Indoor motor is faulty, check if proper operation is change indoor motor restored Fault corrected, resume system operation...
Outdoor DC Fan Motor Fault Outdoor Display LED1 Flashes 9 Times This is caused by an outdoor motor or outdoor PCB fault Spare Parts: Outdoor PCB Outdoor motor whether the outdoor motor plug Re-seat the plug connection is secure 1.Measure for an approx. voltage of 310V between Restore power to the unit and turn pins 1 and 3 of the motor...
VLJQL FDQWO\ GL HUHQW IURP . 2KPV Checking System Components Step 3 NOTE: Component resistance readings shown in this section Re-seat the plug on the connector at the conclusion of the DUH IRU UHIHUHQFH RQO\ $FWXDO UHVLVWDQFH YDOXHV PD\ GL HU test.
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type being tested. wiring and connections to the PFC Reactor as well as the PFC Reactor itself. Repair or replace as necessary. Coil sensor Ambient sensor Step 3 Reconnect the wiring to the module board at the conclusion Step 1 of the test.
HA AW12ES2VHA AW18ES2VHA AW24ES2 Indoor Board Diagram 18-24K Fan motor Ion generator Fresh air W ire controller Up-down stepmotor left stepmotor Room card Wifi EMERGENCY SWITCH RECEIVER DISPLAY AMBIENT TEMP SENSOR PIPING TEMP SENSOR Right stepmotor PAGE 61 REFERENCE INFORMATION...
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