LIGHT COMMERCIAL SPLIT SYSTEMS 3D DC INVERTER HEAT PUMP Single Zone SERVICE MANUAL ALL RIGHTS RESERVED. PARKER DAVIS HVAC INTERNATIONAL, INC., DORAL, FL 33172 USA Phone: (800) 243-0340 www.highseer.com Revision A: 1605, Content updated. Table of Contents 1. Precaution 2. Part Names And Functions 3. Dimension 4. Service space 5. Refrigerant Cycle Diagram 6. Wiring Diagram 7. Static Pressure 8. Electric Characteristics 9. Sound Level 10. Accessories 11. The Specification of Power 12.
CONTENTS 1. Precaution ..................................................................................................................................................1 1.1 Safety Precaution ....................................................................................................................... 1 1.2 Warning ...................................................................................................................................... 1 2. Part Names and Features ....................
For 9K-24K outdoor unit: ................................................................................................................ 84 For 36K-48K Outdoor Unit .............................................................................................................. 85 Outdoor check function................................................................................................................... 86 16.3 Diagnosis and Solution ...............................................................
Be caution when unpacking and installing the product. Sharp edges could cause injury, be especially careful of the case edges and the fins on the condenser and evaporator. 1. Precaution 1.1 Safety Precaution For installation, always contact the dealer or an authorized service center. Do not install the product on a defective installation stand. Be sure the installation area does not deteriorate with age.
If strange sounds or smoke comes from product, turn the breaker off or disconnect the power supply cable. There is risk of electric shock or fire. Install the drain hose to ensure that water is drained away properly. A bad connection may cause water leakage. Keep level even when installing the product. It can avoid vibration of water leakage. Stop operation and close the window in storm or hurricane. If possible, remove the product from the window before the hurricane arrives.
Do not insert hands or other objects through air inlet or outlet while the product is operated. Do not drink the water drained from the product. Use a firm stool or ladder when cleaning or maintaining the product. Be careful and avoid personal injury. Replace the all batteries in the remote control with new ones of the same type. Do not mix old and new batteries or different types of batteries. There is risk of fire or explosion. Do not recharge or disassemble the batteries.
2. Part Names and Features 2.
2.
Ducted Concealed Units 6
Floor Console Units 7
Ceiling-Floor Units 8
2.3 Features 2.3.1 Duct Units 2.3.1.1 Installation accessories: (Field Supplied / Optional) Front Board, Canvas Air Passage, Filter, Panel, for easy installation Panel 2.3.1.2 Easy Installation: Two air inlet styles (Bottom side or Rear side) Air inlet from rear is standard for all capacity; air inlet from bottom is optional.
2.3.1.4 Easy maintenance Clean the filter (Optional, standard product without filter) It is easy to draw out the filter from the indoor unit for cleaning, even the filter is installed in rear side or bottom side. Replace the motor or centrifugal fan Remove the ventilated panel firstly. Remove a half of blower housing and take out the motor with centrifugal fan. Directly remove two bolts, and then replace the motor or centrifugal fan easily. Motor Blower Housing Ventilated Panel 2.3.1.
750mm upmost 2.3.2.7 Build-in Drain Pump with float switch The drain pump can lift the condensing water up to 750mm upmost. It’s convenient to install drainage piping under most space condition. 2.3.1.8 Built-in display board The standard indoor unit can be controlled by wired controller. There is a display board with a receiver in the E-box. Move out the display, and fix it in other place, even in the distance of 10m. The unit will realized remoter control.
2.3.2 Cassette Unit 2.3.2.1 Lower Noise Optimize air channel system design to ensure the maximum quietness and comfort. Noise max down 6dB. Old New 2.3.2.2 Turbo mode (Optional) Turbo function can boost cooling or heating speed in a short period, and makes the room cool down or heat up rapidly. Common vs. Turbo Hot Cold Turbo Mode (After 30 min) 2.3.2.3 Fire-proof controller box Electrical control box adopts new design, which can meet higher fire safety requirements. New Old 2.3.2.
2.3.2.6 Build-in Drain Pump The drain pump can lift the condensing water up to 750mm upmost. It’s convenient to install drainage piping under most space condition. 2.3.2.7Terminals for alarm lamp and long-distance on-off controller connection are standard Reserve terminals for the connection of alarm lamp and long-distance on-off controller, more human control.
2.3.3 Console 2.3.3.1. Modern and elegant appearance The simple and stylish designs can nicely harmonies with your living space. 3.2.3.2. Four panels optional 2.3.3.3. Two air-outlet ways Cooling mode Quick Cooling To maintain room temp Air outlet from top and bottom to make quick cooling ------When the A/C is just switched on, or room temp. is still high, cold air will be blown out from top and bottom air outlet to cool down the room quickly Air outlet from top to maintain room temp.
Heating mode Anti-cold air ------When the AC is just turn on, temperature of evaporator is very low, in this case, in order to prevent cold air direct blowing, only the upper louver is opened in a high position, the lower louver closed. 2.3.3.4. Four air inlets 2.3.3.5. Low noise DC indoor fan motor, which has five speeds. Low noise and energy saving. Advanced centrifugal fan technology makes a fast airflow and reduces the indoor noise. 2.3.3.6. Golden fin is optional. 2.3.3.7.
2.3.1 Ceiling-floor Units 2.3.1.1 Two-way installation The rounded design of the ceiling and floor type air conditioner allows either ceiling or floor-level installation. Ceiling installation saves room space, while floor installation helps prevent the loss of warm air. 2.3.1.2 Brief design Brief design that is suitable for any interior will not only give you cooling and heating performance but also upgrade your lifestyle. 2.3.1.
2.3.1.4 Optional drainage pipe connection Both right side and left side drainage holes are available to avoid the space limitation for drainage pipe installation. Make you more convenient during installation. C Panel (LED display) D Panel 2.3.1.5 Convenience operating and easy maintenance Remote controller as standard, wired controller for optional. The filter without screw fixed, can be took out easily. 2.3.1.
3. Dimension 3.
Cassette Units (9K, 12K, 18K) Gas side Body Drain hole ( for Service ) Wiring connection port 523 E-parts box 570 4-Screw hole (for install panel) 4-install hanger 545 260 570 32 Drain pipe 65 Fresh air intake 44 126 157 75 Wiring connection port 42 68 Panel 647 Liquid side 19
Cassette Units (24K, 36K, 48K) D 92 92 80 A 4-install hanger D 680 136 126 Body Gas side 91 90 780 B A Service hole for draining pump 32 Drain hole 132 A 840 A E-parts box 780 A 92 92 92 92 Liquid side 92 92 92 92 D 80 135 D B 75 Fresh air intake B D 680 C A A D B D D 196 840 92 92 92 92 950 Panel 55 950 Capacity (Btu/h) 24K 36K 48K A B C D mm 160 75 205 50 inch 6.30 2.95 8.07 1.97 mm 160 95 245 60 inch 6.30 3.74 9.65 2.
600 Console Units 210 700 Hanging arm 195 16 Drain pipe Unit: mm 21
Ceiling-floor Units (18K-48K) 2- 33 Wiring connection port 204 94 120 Fresh air intake 140 2- 40 Drain discharge port Refrigerant pipe hole B 120 C A D 222 220 Hanging arm Capacity (Btu/h) 18K / 24K 36K 48K A B C D mm 1068 675 235 983 inch 42.05 26.57 9.25 38.70 mm 1285 675 235 1200 inch 50.59 26.57 9.25 47.24 mm 1650 675 235 1565 inch 64.96 26.57 9.25 61.
3.2 Outdoor Unit A B D Note: The above drawing is only for reference. The appearance of your units may be different. Model YN009GMFI22RPD W D H W1 A B mm 770 300 555 840 487 298 inch 30.3 11.8 21.9 33.1 19.2 11.7 mm 800 333 554 870 514 340 inch 31.5 13.1 21.8 34.3 20.2 13.4 mm 845 363 702 914 540 350 inch 33.3 14.3 27.6 36.0 21.3 13.8 YN012GMFI22RPD YN018GMFI22RPD YN024GMFI22RPD mm 946 410 810 1030 673 403 YN036GMFI17RUD inch 37.2 16.1 31.
4. Service Space 4.1 Indoor Unit Duct Units Ensure enough space required for installation and maintenance. 200mm(7.87in) or more 300mm(11.81in) or more 600mmx600mm/23.62inx23.62in Check orifice All the indoor units reserve the hole to connect the fresh air pipe.
Console Unit Ceiling-floor Units 25
4.2 Outdoor Unit (Wall or obstacle) More than 30cm (11.81in) Air inlet Air inlet Air outlet More than 30cm(11.81in) Maintain channel More than 60cm (23.62in) More than 200cm(78.74in) 26 More than 60cm (23.
5. Refrigerant Cycle Diagram INDOOR OUTDOOR CAPILIARY TUBE LIQUID SIDE Electronic expansion valve 2-WAY VALVE T3 Condenser temp. sensor HEAT EXCHANGE (EVAPORATOR) T2 Evaporator temp. sensor middle T2B Evaporator temp. sensor outlet HEAT EXCHANGE (CONDENSER) T4 Ambient temp. sensor T1 Room temp. sensor GAS SIDE 4-WAY VALVE 3-WAY VALVE Compressor T5 Discharge temp.
6. Wiring Diagram 6.
FB009GMFILCFHD, FB012GMFILCFHD UB018GMFILCFHD 29
UB018GMFILCFHD CB036GMFILCFHD，CB048GMFILCFHD 30
RB036GMFILCFHD，RB048GMFILCFHD 31
UB036GMFILCFHD UB048GMFILCFHD 32
UB036GMFILCFHD, UB048GMFILCFHD 33
6.
YN018GMFI22RPD 35
YN024GMFI22RPD 36
YN036GMFI17RUD 37
YN048GMFI17RUD 38
Outdoor Controller Set of For YN009GMFI22RPD, YN012GMFI22RPD: For YN018GMFI22RPD: 39
For YN024GMFI22RPD, YN036GMFI17RUD 7. Fan Curves Static Pressure Range In. WG (Pa) ENC2 Model (K Btu/h) Model 0 1 2 3 4 Model≤12 0.02 (5) 0.04 (10) 0.08 (20) 0.12 (30) 0.16 (40) 0-0.18 (0-45) Model=18 0.04 (10) 0.10 (25) 0.14 (35) 0.18 (45) 0.22 (55) 0-0.28 (0-70) 18
RB009GMFILCFHD Code 0 Code 1 Code 2 Code 3 Code 4 41
RB012GMFILCFHD Code 0 Code 1 Code 2 Code 3 Code 4 42
RB018GMFILCFHD Code 0 Code 1 Code 2 Code 3 Code 4 43
RB024GMFILCFHD Code 0 Code 1 Code 2 Code 3 Code 4 44
RB036GMFILCFHD Code 0 Code 1 Code 2 Code 3 Code 4 45
RB048GMFILCFHD Code 0 Code 1 Code 2 Code 3 Code 4 46
8 Electric Characteristics Model Indoor Unit Hz Voltage Min. Max.
9 Sound Level 9.1 Indoor unit Concealed Duct Type Discharge Suction Duct Duct 1.
1.
Microphone 1m 1.5m Noise level dB(A) Model H M L FB009GMFILCFHD 45 41 35 FB012GMFILCFHD 44 42 38 1m 1m Air outlet side Microphone 1.
9.2 Outdoor unit Outdoor Unit Microphone H 1.0m Note: H= 0.
10 Accessories Duct Units Name Tubing & Fittings Drainpipe Fittings (for cooling & heating) Wired controller & Its Frame Shape Quantity Soundproof / insulation sheath 2 Binding tape 1 Seal sponge 1 Drain joint 1 Seal ring 1 Wired controller 1 ， Owner s manual 1 Installation manual 1 Others EMS & It’s fitting Magnetic ring (twist the electric wires L 1 and N around it to five circles) Cassette Units Name Shape Quantity Installation Fittings Installation paper board 1 Tubing
provided the following accessories) Remote controller holder 1 Mounting screw(ST2.
11 The Specification of Power Type Power 9K-18K Phase Frequency and Voltage Circuit Breaker/ Fuse (A) Indoor Unit Power Wiring Indoor/Outdoor Connecting Wiring 1-phase 1-phase 208-230V, 60Hz 208-230V, 60Hz 25/20 40/30 2.5 2.0 (mm2) Ground Wiring Outdoor Unit Power Wiring 3×2.5 3×2.0 High Voltage Signal 4×1.0 4×1.
12 Field Wiring 36,000 and 48,000 BTU Models 55
blockage of the heat exchanger in the outdoor unit. If is built over the unit to prevent direct sunlight, rain exposure, direct strong wend, snow and other scraps accumulation, make sure that heat radiation from the condenser is not restricted. 12 Installation Details 12.1 Location selection 12.1.1 Indoor unit location selection The place shall easily support the indoor unit’s weight. The place can ensure the indoor unit installation and inspection.
Drill four holes of Ø12mm, 45~50mm deep at the selected positions on the ceiling. Then embed the expansible hooks (fittings). 12.2.1.4 Install the main body Make the 4 suspender through the 4 hanger of ② Stick the attached seal sponge as per the the main body to suspend it. Adjust the indicating place in the following fig, and then hexangular nuts on the four installation hooks change the mounting positions of air return evenly, to ensure the balance of the body. Use panel and air return flange .
Select the position of installation hooks according to the hook holes positions showed in upper picture. Drill four holes of Ø12mm, 45~50mm deep at the selected positions on the ceiling. Then embed the expansible hooks (fittings). 12.2.2 Cassette indoor unit installation 12.2.2.1 Service space for indoor unit Face the concave side of the installation hooks toward the expansible hooks. Determine the length of the installation hooks from the height of ceiling, then cut off the unnecessary part.
The body's lower part should sink into the ceiling for 10~12 mm. In general, L is half of the screw length of the installation hook. Tighten the screws under the panel hooks till Locate the air conditioner firmly by wrenching the panel closely stick on the ceiling to avoid the nuts after having adjusted the body's condensate water. position well. 12.2.2.
12.2.3.2 Install the main body Fix the hook with tapping screw onto the wall Capacity D E 24K 983 220 36K 1200 220 48K 1565 220 (Btu/h) Hang the indoor unit on the hook. (The bottom of body can touch with floor or suspended, but the body must install vertically.) ② Wall-mounted installation 3.4.1Install the pendant bolt ① Ceiling installation Select the position of installation hooks according to the hook holes positions showed in upper picture.
14.2.1.3 Install the main body ② Wall-mounted installation ① Ceiling installation (The only installation Hang the indoor unit by insert the tapping screws method for the unit with drain pump) into the hanging arms on the main unit. (The bottom Remove the side board and the grille. of body can touch with floor or suspended, but the body must install vertically.) 12.3 Locate the hanging arm on the hanging screw bolt. Outdoor unit installation 12.3.
between indoor and outdoor unit not exceeded the date in the following table. Max. Length Model Model B C D mm inch mm inch mm inch 9K 549 21.61 325 12.80 350 13.78 12K 549 21.61 325 12.80 350 13.78 18K 560 22.05 335 13.19 360 14.17 24K 640 25.20 405 15.94 448 17.64 36K 640 25.20 405 15.94 448 17.64 48K 634 24.96 404 15.91 448 17.64 Max. Elevation m Ft. m Ft. 9,000Btu/h 25 82.2 10 32.9 12,000Btu/h 25 82.2 10 32.9 18,000Btu/h 30 98.
1/2" (12.7) 5/8" (15.9) 3/4" (19) 7. 8. 9. 10. 11. 12. 13. 15.4 15.8 18.6 19.1 22.9 23.3 ● Moisture in the refrigerant circuit may freeze and block capillary tubing. ● Water may lead to corrosion of parts in the refrigerant system. Therefore, the indoor units and the pipes between indoor and outdoor units must be leak tested and evacuated to remove gas and moisture from the system.
vacuum pump. Confirm that the gauge needle does not move (approximately 5 minutes after turning off the vacuum pump). 7) Turn the flare nut of the 3-way valves about 45° counterclockwise for 6 or 7seconds after the gas coming out, then tighten the flare nut again. Make sure the pressure display in the pressure indicator is a little higher than the atmosphere pressure. Then remove the charge hose from the 3 way valve.
pressure of the low side), disconnect the charge hose from the 3-way valve’s service port immediately and turn off the air conditioner before disconnecting the hose. 7). Mount the valve stem caps and the service port Use torque wrench to tighten the service port cap to a torque of 18N.m. Be sure to check for gas leakage. Do this quickly so that the gauge ends up indicating 0.3Mpa (43.5Psi) to 0.5 Mpa (72.5Psi). Disconnect the charge set, and tighten the 2-way and 3-way valve’s stem nuts.
7). Mount the valve stems nuts and the service port cap Be sure to use a torque wrench to tighten the service port cap to a torque 18N.m. Be sure to check the gas leakage. 1). Connect the charge hose to the charging cylinder, open the 2-way valve and the 3-way valve Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder. If the refrigerant is R410A, make the cylinder bottom up to ensure liquid charge. 2).
Adopt suitable pipe diameter Adopt nearby condensate water discharge For Vertical drainage pipe (The following table is for reference) 12.5.2 Key points of drainage water pipe installation 1. Considering the pipeline route and elevation Before installing condensate water pipeline, determine its route and elevation to avoid intersection with other pipelines and ensure slope is straight. 2.
Drainage pipe Drainage pipe Water flow Water flow Water flow Hanger Water flow Water flow Drain tee Drain tee Drain tee Drainage pipe A Water flow Water flow Water flow Water flow B Down incline pipe A:Length of horizontal pipe ≤150mm B: Lift height≤the pump head of water pump Flexible pipe 300mm Branch pipe Water flow Gas Gas Water flow Keep a certain degree Main pipe Main pipe 8. Branch pipe 6.
drainage outlet. (In light of the length of drainage pipe, water shall be discharged about 1 minute delayed) 2.3 Stop the operation of air conditioner, power off the power supply and put the cover of water test hole back to the original place. a. After stopped the air conditioner 3 minutes, check whether there is anything abnormal. If drainage pipes have not been distributed properly, over back-flow water shall cause 2. Pump drainage mode the 2.
Ice-blockage shall cause abnormal operation of system, while copper oxide 2 shall damage compressor. Eliminating the non-condensable gas (air) in system to prevent the components oxidizing, pressure fluctuation and bad heat exchange during the operation of system. The special vacuum drying method shall be 12.6.2 Selection of vacuum pump The ultimate vacuum degree of vacuum pump shall be -756mmHg or above. Precision of vacuum pump shall reach 0.02mmHg or above.
After the vacuum drying process is carried out, the additional refrigerant charge process needs to be performed. The outdoor unit is factory charged with refrigerant. The additional refrigerant charge volume is decided by the diameter and length of the liquid pipe between indoor and outdoor unit. Refer the following formula to calculate the charge volume. Diameter 2 of liquid pipe Φ6.35 Φ9.52 (mm) Formula V=15g/m×(L-7.5) V=30g/m×(L-7.5) V: Additional refrigerant charge volume (g).
The insulation material at the joint pipe shall be banded to the gap pipe and liquid pipe tightly. The linking part should be use glue to paste together Be sure not bind the insulation material over-tight, it may extrude out the air in the material to cause bad insulation and cause easy aging of the material. 12.8.
The gas-side and liquid-side stop values are both opened. The air conditioner is pre-heated by turning on the power. 3 Test operation Set the air conditioner under the mode of "COOLING" by remote controller, and check the following points. Indoor unit Whether the switch on the remote controller works well. Whether the buttons on the remote controller works well. Whether the air flow louver moves normally. Whether the room temperature is adjusted well. Whether the indicator lights normally.
13. Operation Characteristics Temperature Mode Room temperature Cooling operation 17℃～32℃(62℉～90℉) Heating operation Drying operation 0℃～30℃ 10℃～32℃ (32℉～86℉) (50℉～90℉) 0℃～50℃ Outdoor temperature (Entry level) (32℉～122℉) （-15℃～50℃(5℉～122℉)：For the models with low temperature -15℃～30℃ (5℉～86℉) 0℃～50℃ cooling system） Outdoor temperature (E-Star level) Outdoor temperature (Hyper heat) -25℃～50℃(-13℉～122℉) -30℃～50℃(-22℉～122℉) -25℃～30℃ (32℉～122℉) (-13℉～86℉) -30℃～50℃ (-22℉～122℉) CAUTION: 1.
14. Electronic Function 14.1 Abbreviation T1: Indoor room temperature T2: Coil temperature of indoor heat exchanger middle. T2B: Coil temperature of indoor heat exchanger outlet. T3: Coil temperature of condenser T4: Outdoor ambient temperature T5: Compressor discharge temperature 14.2.1 Icon explanation on indoor display board (Ceiling Floor) Td: Target temperature 14.2 Display function 14.2.
3 times when fan motor restarts continuously, the unit will stop and the LED will display the failure. When outdoor fan speed keeps too low (lower than 100RPM) or too high (higher than 1500RPM) for 60s, the unit will stop and the LED will display the failure. Malfunction is cleared 30s later. ---T3>60°C(140°F) for 5 seconds, the compressor will stop until T3<52°C(125.6°F). 14.3.10 Evaporator low temperature T2 protection ---T2<0°C(32°F), the compressor will stop and restart when T2≧5°C(41°F).
In cooling mode, indoor fan runs all the time and the speed can be selected as high, medium, low and auto. The indoor fan is controlled as below: 1.5(34.7) 4.5(40.1) 1.5(34.7) 4.5(40.1) L 3.0(37.4) 1.5(34.7) 2.5¡ã C(36.5¡ã F) 1.0¡ã C(33.8¡ã F) L+(L+=L+D) L(L=L) L-(L-=L-D) D DC_FAN_SLOW_SPD_ADD C DC_FAN_MIN_SPD_ADD B DC_FAN_MID_SPD_ADD A DC_FAN_HI_SPD_ADD 16℃(60.8°F) 15℃(59°F) 13℃(55.4°F) 12℃(53.6°F) 10℃(50°F) L -1¡ã C(30.2¡ã F) -2¡ã C(28.4¡ã F) (H+-L)*0.2+L (H+-L)*0.4+L -3¡ã C(26.
for 15 minutes and then choose mode according to T1-Ts. If the setting temperature is modified, the machine will choose running function again. no longer than 10min Compressor X1 10S X2 10S 4-Way valve 14.4.5 Drying mode Drying mode works the same as cooling mode in low speed. All protections are active and the same as that in cooling mode. Outdoor fan 14.4.3.5 Evaporator protection coil temperature 14.4.6 Timer function 14.4.6.1 Timing range is 24 hours. 14.4.6.2 Timer on.
setting temperature stops rising and indoor fan is fixed at low speed. (Anti-cold wind function has the priority). 14.4.7.3 Operation time in sleep mode is 7 hours. After 7 hours the AC quits this mode and turns off 14.4.7.4 Timer setting is available. the room temperature detected from its own room temperature sensor and setting temperature. 14.4.10 8℃ Heating(optional) In heating operation, the preset temperature of the air conditioner can be as lower as 8℃ (46.
Point check function Press the LED DISPLAY or LED or MUTE button of the remote controller three times, and then press the AIR DIRECTION or SWING button three times in ten seconds, the buzzer will keep ring for two seconds. The air conditioner will enter into the information enquiry status. You can press the LED DISPLAY or AIR DIRECTION button to check the next or front item’s information.
When the AC enter into the information enquiry status, it will display the code value in the next 25s, the details are as follows. Enquiry Display value Meaning Remark T1,T2,T3,T4, -1F,-1E,-1d,-1c,- -25,-24,-23,-22,-21,-2 1. All the displaying temperature is actual T2B,TP,TH, 1b,-1A 0 information value. Targeted -19—99 -19—99 2. All the temperature is °C no matter Frequency, A0,A1,…A9 100,101,…109 what kind of remote controller is used. Actual b0,b1,…b9 110,111,…119 3.
16. Troubleshooting Safety Electricity power is still kept in capacitors even the power supply is shut off. Do not forget to discharge the electricity power in capacitor. Electrolytic Capacitors (HIGH VOLTAGE! CAUTION!) For other models, please connect discharge resistance (approx.100Ω 40W) or soldering iron (plug) between +, terminals of the electrolytic capacitor on the contrary side of the outdoor PCB. Note: The picture above is only for reference. The plug of your side may be different.
16.
16.2 Outdoor unit error display For 9K-24K outdoor unit: No.
For 36K-48K Outdoor Unit No Problems Error Code 1 Communication malfunction between indoor and outdoor units E1 2 Current overload protection F0 3 Outdoor ambient temperature sensor (T4 ) malfunction F1 4 Condenser coil temperature sensor (T3) malfunction F2 5 Compressor discharge temperature sensor (T5) malfunction F3 6 Outdoor unit EEPROM parameter error F4 7 Outdoor fan speed has been out of control F5 8 Inverter module (IPM) malfunction P0 9 Over-voltage or under-voltage prot
Outdoor check function N 00 Display Normal display Remark Display running frequency, running state or malfunction code Actual data*HP*10 If capacity demand code is higher than 99, the digital display 01 Indoor unit capacity demand code tube will show single digit and tens digit. (For example, the digital display tube show “5.0”,it means the capacity demand is 15. the digital display tube show “60”,it means the capacity demand is 6.
Bit7 Bit6 15 Frequency limit symbol IGBT radiator Frequency limit caused by PFC Bit5 Frequency limit caused by T4. Bit4 Frequency limit caused by T2. Bit3 Frequency limit caused by T3. Bit2 Frequency limit caused by T5. Bit1 Bit0 16 Frequency limit caused by Frequency limit caused by current Frequency limit caused by The display value is hex number. For example, the digital display tube show 2A, then Bit5=1, Bit3=1, Bit1=1. It means frequency limit caused by T4, T3 and current.
16.3 Diagnosis and Solution 16.3.1 EEPROM error diagnosis and solution (E0/F4) Error Code E0/F4 Malfunction decision Indoor or outdoor PCB main chip does not receive feedback conditions from EEPROM chip. Supposed causes ● Installation mistake ● PCB faulty Trouble shooting: EEPROM: An electrically erasable programmable read-only memory whose contents can be erased and reprogrammed using a pulsed voltage.
16.3.2 Communication malfunction between indoor and outdoor units diagnosis and solution (E1) Error Code E1 Malfunction decision Indoor unit does not receive the feedback from outdoor unit during conditions 110 seconds and this condition happens four times continuously.
Remark: Use a multimeter to test the DC voltage between 2 port and 3 port of outdoor unit. The red pin of multimeter connects with 2 port while the black pin is for 3 port. When AC is normal running, the voltage will move alternately between -50V to 50V. If the outdoor unit has malfunction, the voltage will move alternately with positive value. While if the indoor unit has malfunction, the voltage will be a certain value.
16.3.3 Fan speed has been out of control diagnosis and solution (E3) E3 Error Code Malfunction decision conditions Supposed causes When indoor fan speed keeps too low (300RPM) for certain time, the unit will stop and the LED will display the failure.
Index 1: 1. Indoor DC fan motor(control chip is inside fan motor) Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor connector. If the value of the voltage is not in the range showing in below table, the PCB must have problems and need to be replaced. DC motor voltage input and output NO. Color Signal Voltage 1 Red Vs/Vm 200~380V 2 --- --- --- 3 Black GND 0V 4 White Vcc 13.5~16.5V 5 Yellow Vsp 0~6.5V 6 Blue FG 13.5~16.
16.3.4 Open circuit or short circuit of temperature sensor diagnosis and solution (E4/E5/F1/F2/F3) Error Code E4/E5/F1/F2/F3 Malfunction decision If the sampling voltage is lower than 0.06V or higher than 4.94V, conditions the LED will display the failure.
16.3.5 Refrigerant Leakage Detection diagnosis and solution (EC) Error Code EC Malfunction decision Define the evaporator coil temp.T2 of the compressor just starts conditions running as Tcool. In the beginning 5 minutes after the compressor starts up, if T2 ＜Tcool－2℃ does not keep continuous 4 seconds and this situation happens 3 times, the display area will show “EC” and AC will turn off. Supposed causes ● T2 sensor faulty ● Indoor PCB faulty ● System problems, such as leakage or blocking.
16.3.6 Water-level alarm malfunction diagnosis and solution EE decision If the sampling voltage is not 5V, the LED will display the failure.
16.3.7 IPM malfunction or IGBT over-strong current protection diagnosis and solution (P0) P0 Error Code Malfunction decision conditions Supposed causes When the voltage signal that IPM send to compressor drive chip is abnormal, the display LED will show “P0” and AC will turn off.
P-U P-V 97
P-W P-N 98
16.3.8 Over voltage or too low voltage protection diagnosis and solution (P1) P1 Error Code Malfunction decision conditions An abnormal voltage rise or drop is detected by checking the specified voltage detection circuit. Supposed causes ● Power supply problems. ● System leakage or block ● PCB faulty Trouble shooting: Check the power supply No Stop the unit No Correct the connections or replace the wires.
16.3.9 High temperature protection of compressor top diagnosis and solution (P2) P2 Error Code Malfunction decision conditions Supposed causes If the sampling voltage is not 5V, the LED will display the failure. ● Power supply problems. ● System leakage or block ● PCB faulty Trouble shooting: Check the air flow system of indoor and outdoor units Yes Clear up the air inlet and outlet or the heat exchanger of indoor and outdoor units.
16.3.10 Inverter compressor drive error diagnosis and solution(P4) P4 Error Code An abnormal inverter compressor drive is detected by a special Malfunction decision conditions detection circuit, including communication signal detection, voltage detection, compressor rotation speed signal detection and so on.
16.4 Main parts check 1. Temperature sensor checking Disconnect the temperature sensor from PCB, measure the resistance value with a tester. Temperature Sensors. Room temp.(T1) sensor, Indoor coil temp.(T2) sensor, Outdoor coil temp.(T3) sensor, Outdoor ambient temp.(T4) sensor, Compressor discharge temp.(T5) sensor. Measure the resistance value of each winding by using the multi-meter.
Appendix 1 Temperature Sensor Resistance Value Table for T1,T2,T3,T4 (℃--K) ℃ ℉ K Ohm ℃ ℉ K Ohm ℃ ℉ K Ohm ℃ ℉ K Ohm -20 -4 115.266 20 68 12.6431 60 140 2.35774 100 212 0.62973 -19 -2 108.146 21 70 12.0561 61 142 2.27249 101 214 0.61148 -18 0 101.517 22 72 11.5 62 144 2.19073 102 216 0.59386 -17 1 96.3423 23 73 10.9731 63 145 2.11241 103 217 0.57683 -16 3 89.5865 24 75 10.4736 64 147 2.03732 104 219 0.56038 -15 5 84.
Appendix 2 Temperature Sensor Resistance Value Table for T5 (℃--K) ℃ ℉ K Ohm ℃ ℉ K Ohm ℃ ℉ K Ohm ℃ ℉ K Ohm -20 -4 542.7 20 68 68.66 60 140 13.59 100 212 3.702 -19 -2 511.9 21 70 65.62 61 142 13.11 101 214 3.595 -18 0 483 22 72 62.73 62 144 12.65 102 216 3.492 -17 1 455.9 23 73 59.98 63 145 12.21 103 217 3.392 -16 3 430.5 24 75 57.37 64 147 11.79 104 219 3.296 -15 5 406.7 25 77 54.89 65 149 11.38 105 221 3.203 -14 7 384.
Appendix 3: ℃ ℉ ℃ ℉ 10 48 23 74 11 50 24 76 12 52 25 78 13 54 26 80 14 56 27 82 15 58 28 84 16 60 29 86 105 17 62 30 88 18 64 31 90 19 66 32 92 20 68 33 94 21 70 34 96 22 72 35 98
2. Compressor checking Measure the resistance value of each winding by using the tester. Position Resistance Value ASN98D22UFZ ASM135D23UFZ ATF235D22UMT 1.75 Ω 0.75 Ω ATF250D22UMT Blue Red Blue Black 0.75 Ω 1.57Ω Red Blue 106 ATF310D43UMT ATQ420D1UMU 0.65 Ω 0.
3. IPM continuity check Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a digital tester to measure the resistance between P and UVWN; UVW and N. Digital tester (+)Red Normal resistance value Digital tester (-)Black (+)Red N P U ∞ U V (Several MΩ) V Normal resistance value (-)Black W W ∞ N (Several MΩ) (+)Red 4: Pressure on Service Port Cooling chart: COOLING MODE ℉ Indoor (℃) Temp. BAR Outdoor temp.
Heating Chart: HEATING MODE ℉ Indoor (℃) Temp. BAR BAR Outdoor temp. 27 17 57 (13.89) 47 (8.33) 37 (2.78) (-2.78) (-8.33) 55 30.3 28.5 25.3 22.8 20.8 65 32.5 30.0 26.6 25.4 23.3 BAR 75 33.8 31.5 27.8 26.3 24.9 PSI 55 439 413 367 330 302 PSI 65 471 435 386 368 339 PSI 75 489 457 403 381 362 MPA 55 3.03 2.85 2.53 2.28 2.08 MPA 65 3.25 3.00 2.66 2.54 2.33 MPA 75 3.38 3.15 2.78 2.63 2.49 Pressure (bar) 40.0 35.0 30.0 25.0 55 20.
17. Disassembly Instructions Note: This part is for reference, the photos may have slight difference with your machine. 17.1 Indoor unit Ducted Unit No.
3）Move the display board according to the arrow direction to disassemble it. 3 Remove the PCB 1) Remove the cover of electronic control box 1) Repeat the operation of step1 of No1 Pull out all the plugs or connectors connected to the PCB and remove the ground wire after remove the screw.
5 Remove the fan motor 1) Screw off the fixing screws to remove the rear cover board 5 screws Rear cover board 2) Screw off the fixing screws to remove the rear beam Rear beam Total four screws at the left side and right side 3) Remove room temperature sensor Cut off the fastening belt to take off the room temperature sensor 4) Remove the sticker Stickers 5) Remove the below volute shell Press Press Press the clips to take off the volute shell 6) Remove the fan motor wire from the electronic
6 Remove the water collector assembly 1) Remove the rear cover board Repeat the operation of step1 of No.5 2) Screw off the screws to remove the water collector assembly 4 screws 3 screws 3 screws 3 screws Water collector assembly 7 Remove the evaporator 1) Remove the water collector Repeat the operation of No.
4) Remove the evaporator support board 4 screws 5) Screw off the fixing screws to remove the evaporator 1 screw 113
Cassette Unit No. Parts name Procedures 1 Remove the filter 3) Open the grille Remarks Grill switch 4) Remove the filter Note: the filter is easy to be damaged, be careful when removing it. 2 Remove the panel 4) Open the grille Repeat the operation of step1 of No.1 5) Remove the grille Screw off two screws. Disconnect the display board wire and swing motor wire connected to the PCB. Remove the grille.
board cover(4 screws) Remove the display board(4 screws) 4 screws 4 Remove the swing motor 1) Remove the panel Repeat the operation of step1,2,3 of No.2 2) Screw off 3 screws to remove the swing motor assy. 3 screws 3) Screw off 1 screws to remove the swing motor. 1 screw 5 Remove the PCB 1) Open the grille Repeat the operation of step1 of No.1(No need to remove the panel) 2) Disassemble the electronic control box cover after remove the 2 screws.
3) Pull out all the connection wires to other parts, then the PCB can be replaced. Pump RY2 Water lever Power Input Indoor fan Temp. sensors Swing motor Display board 4) There are 2 buckles fixing the PCB. To draw out the PCB, you should open them. 6 Remove the electronic control box 1) Open the grille Repeat the operation of step1 of No.1(No need to take down the panel) 2) Remove the electronic control box cover Repeat the operation of step 2 of No.
3) Remove the fixing nut to disassemble the fan wheel 4) Pull out the fan wheel 8 Remove the fan motor 1) Repeat the operation of No.6 2) Remove the fixing board of fan motor wire 3 nuts 3) Remove the 5 screws to disassemble the fan motor 9 Remove the water collecting 5 screws 6) Remove the panel Repeat the operation of No.2 7) Remove the electronic control box Repeat the operation of No.
assembly 8) Screw off the 4 screws inside 4 holes (1 is under a protection cover) to remove the water collecting assembly. 9) Take out the water collecting assembly 10 Remove the draining pump 1) Remove the panel Repeat the operation of No.2 2) Remove the electronic control box Repeat the operation of No.6 3) Remove the water collecting assembly Repeat the operation of No.9 4) Disconnect the drain pipe. 5) Release 2 screws to remove the pump supporter. Be careful of the connection wires.
6) There are 2 screws under the supporter to fixing the pump. Release them to take the pump out of the supporter. 11 Remove the evaporator 1) Remove the water collecting assembly Repeat the operation of No.9 2) Remove the seal board of evaporator 3 screws 3) Remove the evaporator fixing board 4 screws 4) Remove the evaporator fixing clamps to disassemble the evaporator.
Console Unit No. Parts Procedures name 1 Remove the Filter Remarks push push 1) Slide the two stoppers on the left and right sides to open the front panel 2) Remove the filter. 2 Remove the electronic control box 1) Remove the air front panel Open the front panel Repeat the operation of step1 of No.1 2) Remove the filter. Remove the string. Allowing the front panel to fall forward will enable you to remove it. Repeat the operation of step 2 of No.
4) Remove the installation plate of electric parts 5) Remove the fixing board of electronic control box 6) Disconnect the DC motor wire, 2 louver motor wires, evaporator coil temperature sensor(T2) wire, and two grounding wire (yellow-green) to remove the electronic control box 3 Remove the PCB 1) Take out the electronic control box from the body and remove its cover Louver motor connector T2 Screws of the grounding wire Louver motor connector DC motor connector Repeat the operation of step1~ step6 of
2) Disconnect all the wires of plugs connected to the PCB 3) Remove two fixing screws to remove the PCB 2 screws 4. Remove the display board 1) Remove the electronic control box Repeat the operation of step1~step of No2. 2) Remove the fixing glue to remove the display board 5 Remove the switch board 1) Remove the electronic control box Repeat the operation of step1~step of No2.
2) Remove the 1 fixing screw to remove air outlet grille assembly 1 screw 3) Disconnect louver motor wire 8 9 Remove the louver motor of air outlet assembly Remove the louver motor of the water collector 1) Remove the air outlet grille assembly Repeat the operation of No.7 to remove the air outlet grille assembly 2) Screw off the screws to remove the motor 1) Remove the front panel assembly and the panel frame assembly 2 screws Repeat the operation of step1, step2 and step3 of No 2.
2) Disconnect louver motor wire Louver motor connector 3) Remove 4 fixing screws to disassemble the water collector 4 screws 11 Remove the evaporator assembly 1) Remove the electronic control box Repeat the operation of No.2 to remove the electronic control box 2) Remove the air outlet grille assembly Repeat the operation of No.7 to remove the air outlet grille assembly 3) Remove the evaporator sensor and release the pipe strap.
4) Remove the evaporator assembly 12 Remove the centrifugal fan 1) Remove the electronic control box Repeat the operation of No.2 to remove the electronic control box 2) Remove the air outlet grille assembly Repeat the operation of No.7 to remove the air outlet grille assembly 3) Remove four fixing screws to remove the ventilation assembly Each side has two screws 4) Remove the hex nut fixing the fan to remove the fan.
17.2 Outdoor unit YN009GMFI22RPD, YN012GMFI22RPD No. Part name Procedures 1 Panel plate How to remove the panel Remarks plate. 1)Stop operation of the air conditioner and turn “OFF” the power breaker.
1)After remove the panel plate following procedure 1 reactor Compressor and liquid-gas separator 2 ○ 2) Remove the nut fixing the fan,and remove the fan. 3 ○ 3) Unfix the hooks and then open the electronic control box cover.
4) Disconnect the connector for fan motor from the electronic control board. 4 ○ 5) Remove the four fixing screws of the fan motor, 5 ○ then remove the motor.
3 Electrical parts How to remove the electrical parts. 2) After finish work of 1 ○ item 1 and item 2, remove the two connectors for the compressor and the reactors. 3) 2 ○ Pull out the two blue wires connected with the four way valve. 3 ○ 3) Pull out connectors of the compressor top temp. sensor, condenser coil temp. sensor(T3),outdoor ambient temp. sensor(T4) and discharge temp. sensor(T5).
heater connector. 4 ○ 5) Disconnect the electronic expansion valve 5 ○ wire from the control board 6 ○ 6) Remove the ground wires . 7) Remove the power supply wires(old label, L1,L2,S, new label 1,2,3). 8) Then remove the electronic control box.
4 Four-way valve How to remove the four-way valve. 1) Perform The picture of four-way valve may be different from the one on your side. work of item 2) 4 ○ 3 ○ 1,2,3. Recover refrigerant from the refrigerant circuit. 3) Remove the screw of the coil and then remove the coil. 4) Detach the welded parts of four-way valve and pipe. 5) Then the four-way valve ass’y can be removed 5 Compressor 2 ○ How to remove the compressor. 1) After perform work of item1,2,3.
No. YN018GMFI22RPD Part name Procedures Panel plate How to remove the panel Remarks plate. 4 screws of top panel 1) Stop operation of 3 screws of the air conditioner and turn big handle “OFF” the power breaker. 9 screws of front panel 2 ○ 2) Remove the top panel(7 screws).
2 Fan ass’y How to remove the fan ass’y. 1 ○ 1) After remove the panel plate following procedure 1, remove the hex nut fixing the fan and then remove the fan. 2 ○ 2) Unfix the hooks and then open the electronic control box cover.
3) Disconnect the connector for fan motor from the electronic control board. 4) Remove the four fixing 4 ○ screws of the fan motor. 5) Then remove the fan motor. 3 Electrical parts How to remove the 1 ○ electrical parts. 1) After finish work of item 1 and item 2, remove the connectors for the compressor and reactor.
2) Pull out the two blue 2 ○ wires connected with the four way valve. 3 ○ 3 ○ 3) Pull out connectors of the compressor top temp. sensor, condenser coil temp. sensor(T3),outdoor ambient temp. sensor(T4) and discharge temp. sensor(T5).
6) Remove the grounding screw. 7) Remove the power 6 ○ supply wires(old label, L1,L2,S; new label 1,2,3). 8) Then remove the electronic control box.
4 Four-way valve How to remove the four-way valve. The picture of four-way valve may be different from the one on your side. 1) Perform work of 3 ○ item1,2,3. 2) Recover refrigerant from the refrigerant circuit. 3) Remove the screw of the coil and then remove the coil. 4) Detach the welded parts of four-way valve and pipe. 5) Then the four-way valve ass’y can be removed 5 Compressor 2 ○ How to remove the compressor. 1) After perform work of item1,2,3.
YN024GMFI22RPD No. Part name Procedures Panel plate How to remove the panel Remarks 3 screws of top panel plate. 1) Stop operation of the air conditioner and turn “OFF” the power 4 screws of big handle breaker. 11 screws of front panel 2 ○ 2) Remove the big handle first,then remove the top panel( 7screws) 4 ○ 3) Remove the screws of the front panel(11 screws) 4) Remove the screws of 3 ○ the right side plate and remove the right side plate.
ass’y. 1 ○ 1) After remove the panel plate following procedure 1, remove the hex nut fixing the fan and then remove the fan. 2 ○ 2) Unfix the hooks and screws,then open the electronic control box cover.
board. 3 ○ 2) Remove the four fixing screws of the fan motor. 2 ○ 3) Then remove the fan motor. 3 Electrical parts 1 ○ How to remove the electrical parts. 1) After finish work of item 1 and item 2, remove 2 ○ the three connectors for the compressor and the compressor crankcase heater and the electric heater. 2) Pull out the two blue wires connected with the four way valve. 3) Pull out connectors of the compressor top temp. sensor, condenser coil temp.
ambient temp. sensor(T4) and discharge temp. 3 ○ sensor(T5). 4)Disconnect the electronic expansion valve wire from the control board 4 ○ 4 ○ 5 ○ 5) Remove the grounding screw. 6) Remove the power supply wires (old label, L1,L2,S; new label 1,2,3). 6 ○ 7) Then remove the electronic control box.
4 Four-way valve How to remove the four-way valve. 1) Perform work of The picture of four-way valve may be different from the one on your side. 3 4 ○ ○ item1,2,3. 2) Recover refrigerant from the refrigerant circuit. 3) Remove the screw of the coil and then remove the coil. 4) Detach the welded parts of four-way valve and pipe. 5) Then the four-way valve ass’y can be removed 5 Compressor How to remove the 2 ○ compressor. 1) After perform work of item1,2,3.
