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CENTRAL SPLIT AIR CONDITIONER

Technical &

Service Manual

v1.0

IMPORTANT NOTICE: Thank you very much for purchasing this Air Conditioner. Please read this manual carefully before

installing or operating your new air conditioning system. Be sure to save this manual for future reference.

HIGH EFFICENCY

CONDENSING UNIT

Models:

• YH1824GHFD18R2

• YH3036GHFD18R2

• YH4248GHFD18R2

• YH4860GHFD18R2

- R-410A REFRIGERANT

- 208~230 V, 1 Phase, 60 Hz

- 18 SEER

Summary of content (75 pages)

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CENTRAL SPLIT AIR CONDITIONER Technical & Service Manual v1.0 HIGH EFFICENCY CONDENSING UNIT Models: • YH1824GHFD18R2 • YH3036GHFD18R2 • YH4248GHFD18R2 • YH4860GHFD18R2 - R-410A REFRIGERANT - 208~230 V, 1 Phase, 60 Hz - 18 SEER IMPORTANT NOTICE: Thank you very much for purchasing this Air Conditioner. Please read this manual carefully before installing or operating your new air conditioning system. Be sure to save this manual for future reference.
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SAFETY SUMMARY IMPORTANT NOTICE ● We pursue a policy of continuing improvement in design and performance of products. The right is therefore reserved to vary specifications without notice. ● We cannot anticipate every possible circumstance that might involve a potential hazard. ● This air conditioner is designed for standard air conditioning only. Do not use this air conditioner for other purposes such as drying clothes, refrigerating foods or for any other cooling or heating process.
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● If circuit breaker or fuse is often activated, stop the system and contact your service contractor. ● Check that the ground wire is securely connected. If the unit is not correctly grounded, it will lead to electric shock. Do not connect the ground wiring to gas piping, water piping, lightning conductor or ground wiring for telephone. ● Before performing any brazing work, check to ensure that there is no flammable material around when using refrigerant.
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Table of Contents 1. General ..................................................................................................................................................1 1.1 Features.........................................................................................................................................1 1.2 Product lineup................................................................................................................................1 1.3 Nomenclature ...................
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1. GENERAL 1. General 1.1 Features 360 DC inverter driven technology With 360 all DC inverter driven technology, realize the compressor driving direction the same with rotary direction. Optimize energy-saving, and keep the compressor more stable and high efﬁcient during operation. It can also guarantee more stable temperature control and reduce noise. Pressure sensor Inside the outdoor unit is the pressure sensor, which defects low pressure in cooling mode and high pressure in heating mode.
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1. GENERAL 1.4 Unit installation 1:1 system is the only compatible combination. (Only one indoor unit can be connected with one outdoor unit.) 1.5 Working range Power Supply Working Voltage 198V ~ 253V Voltage Imbalance Within a 3% deviation from each voltage at the main terminal of outdoor unit Starting Voltage Higher than 85% of the Rated Voltage Operating temperature range This air conditioner is designed for the following outdoor operating temperatures.
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2.�SPECIFICATIONS 2. Speciﬁcations Outdoor model Power supply Cooling Heating V/ph/Hz 24K 36K 48K 60K 208~230/1/60 208~230/1/60 208~230/1/60 208~230/1/60 Capacity Btu/h 24000 36000 48000 56000 Capacity(min-max) Btu/h 6700-26000 11800-36800 18300-52000 18300-59400 Capacity(min-max) W 2227-7327 2814-10697 5363-15240 5363-17409 Input W 2200 3770 4690 6560 Current A 9.6 16.5 21.0 26.8 SEER1 Btu/(W.h) 18 18 18 17.5 SEER2 Btu/(W.h) 17 17.5 17 17 EER Btu/(W.
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2.�SPECIFICATIONS Outdoor model Type Twin ROTARY Twin ROTARY Twin ROTARY 26085 41865 41865 Input W 2080 2080 3385 3385 Rated current(RLA) A 9.45 9.45 15.39 15.39 ml VG74 /670 VG74 /670 VG74 /1000 VG74 /1000 oz VG74 /22.7 VG74 /22.7 VG74 /33.9 VG74 /33.9 R-410A R-410A R-410A R-410A Refrigerant charge oz(kg) 70.5(2.0) 98.7(2.8) 142.9(4.05) 142.9(4.05) Factory precharge Ft(m) 25(7.6) 25(7.6) 25(7.6) 25(7.6) Additional charge for each ft oz/ft 0.38 0.38 0.6 0.
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3. OUTLINES AND DIMENSIONS 3. Outlines and dimensions 24K Unit : in.
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3. OUTLINES AND DIMENSIONS 36K 4-1/8 (105) 33-1/8(840) Unit : in.
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3. OUTLINES AND DIMENSIONS 48K/60K Unit : in.
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4. ELECTRICAL DATA 4. Electrical data Power supply Applicable voltage ELB Indoor Unit Voltage (V) PH Frequency (Hz) Umin (V) Umax (V) Nominal Current (A) Nominal Sensitive Current (mA) 36K 24K 208/230 1 60 198 253 25 30 30 36K 208/230 1 60 198 253 35 30 30 48K/60K 208/230 1 60 198 253 50 30 NOTE: 1. The above compressor data is based on 100% capacity combination of indoor units at the rated operating frequency. 2.
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5. CAPACITIES AND SELECTION DATA 5. Capacities and selection data 5.1 Capacity characteristic charts The following charts show the characteristics of outdoor unit capacity, which corresponds with the operating ambient temperature of outdoor unit. Conditions: ① Pipe length / height diﬀerence: 25 ft. (7.6m) / 0 ft. (0m) ② Compressor at rated inverter frequency ③ Indoor fan speed at high fan speed ④ Capacity loss due to white frost and defrost operation is not included.
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5. CAPACITIES AND SELECTION DATA Performance data (Cooling operation at rated frequency) 24K outdoor unit matches 18K indoor unit Airflow (CMF) 450 600 750 59/15 Outdoor IWB (°F/℃) DB 70 75 80 85 IDB (°F/℃) (°F/℃) /21.1 /23.9 /26.7 /29.4 15.3 15.5 15.8 16.0 TC S/T 0.99 1.00 1.00 1.00 65 kW 0.89 0.90 0.90 0.90 TC 15.3 15.5 15.9 16.0 S/T 1.00 1.00 0.99 1.00 75 kW 0.98 1.00 1.01 1.01 TC 15.1 15.3 15.6 15.8 85 S/T 1.00 1.00 1.00 1.00 kW 1.11 1.12 1.13 1.13 TC 14.9 15.0 15.3 15.5 95 S/T 1.00 1.00 1.00 1.
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5. CAPACITIES AND SELECTION DATA Performance data (Cooling operation at rated frequency) 24K outdoor unit matches 24K indoor unit 59/15 Airflow Outdoor IWB (°F/℃) DB 70 75 80 85 (CMF) (°F/℃) IDB (°F/℃) /21.1 /23.9 /26.7 /29.4 20.5 20.7 21.1 21.4 TC S/T 0.99 1.00 1.00 1.00 65 kW 1.22 1.23 1.24 1.24 TC 20.5 20.7 21.1 21.4 S/T 1.00 1.00 0.99 1.00 75 kW 1.35 1.37 1.38 1.38 TC 20.2 20.4 20.8 21.1 85 S/T 1.00 1.00 1.00 1.00 kW 1.53 1.54 1.56 1.56 600 TC 19.8 20.0 20.5 20.7 95 S/T 1.00 1.00 1.00 1.00 kW 1.84 1.
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5. CAPACITIES AND SELECTION DATA Performance data (Cooling operation at rated frequency) 36K outdoor unit matches 30K indoor unit 59/15 Outdoor IWB (°F/℃) Airflow DB 70 75 80 85 (CMF) (°F/℃) IDB (°F/℃) /21.1 /23.9 /26.7 /29.4 25.6 25.8 26.3 26.7 TC S/T 0.99 1.00 1.00 1.00 65 kW 1.55 1.57 1.58 1.58 TC 25.6 25.9 26.4 26.7 S/T 1.00 1.00 0.99 1.00 75 kW 1.72 1.74 1.76 1.76 TC 25.2 25.5 26.0 26.3 S/T 1.00 1.00 1.00 1.00 85 kW 1.94 1.96 1.98 1.98 600 TC 24.8 25.0 25.6 25.9 95 S/T 1.00 1.00 1.00 1.00 kW 2.34 2.
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5. CAPACITIES AND SELECTION DATA Performance data (Cooling operation at rated frequency) 36K outdoor unit matches 36K indoor unit 63/17.2 67/19.4 71/21.6 59/15 Outdoor IWB (°F/℃) Airflow DB 70 75 80 85 70 75 80 85 70 75 80 85 70 75 80 85 (CMF) (°F/℃) IDB (°F/℃) /21.1 /23.9 /26.7 /29.4 /21.1 /23.9 /26.7 /29.4 /21.1 /23.9 /26.7 /29.4 /21.1 /23.9 /26.7 /29.4 TC 30.7 31.0 31.6 32.0 31.6 32.0 32.3 32.7 33.8 34.1 34.4 34.6 \ 41.2 41.5 41.8 S/T 0.99 1.00 1.00 1.00 0.61 0.83 1.00 1.00 0.39 0.57 0.73 0.90 \ 0.39 0.
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5. CAPACITIES AND SELECTION DATA Performance data (Cooling operation at rated frequency) 48K outdoor unit matches 42K indoor unit 63/17.2 67/19.4 71/21.6 59/15 Airflow Outdoor IWB (°F/℃) DB 70 80 85 70 80 85 75 75 80 70 75 85 70 75 80 85 (CMF) (°F/℃) IDB (°F/℃) /21.1 /23.9 /26.7 /29.4 /21.1 /23.9 /26.7 /29.4 /21.1 /23.9 /26.7 /29.4 /21.1 /23.9 /26.7 /29.4 35.8 36.2 36.9 37.4 36.9 37.4 37.7 38.1 39.4 39.8 40.2 40.4 \ 48.1 48.5 48.8 TC S/T 0.99 1.00 1.00 1.00 0.61 0.83 1.00 1.00 0.39 0.57 0.73 0.90 \ 0.39 0.
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5. CAPACITIES AND SELECTION DATA Performance data (Cooling operation at rated frequency) 48K outdoor unit matches 48K indoor unit IWB (°F/℃) 59/15 Airflow Outdoor DB 70 75 80 85 (CMF) (°F/℃) IDB (°F/℃) /21.1 /23.9 /26.7 /29.4 40.9 41.3 42.2 42.7 TC S/T 0.99 1.00 1.00 1.00 65 kW 2.60 2.63 2.65 2.65 TC 40.9 41.5 42.3 42.7 S/T 1.00 1.00 0.99 1.00 75 kW 2.88 2.92 2.95 2.95 TC 40.3 40.8 41.6 42.2 S/T 1.00 1.00 1.00 1.00 85 kW 3.26 3.29 3.32 3.32 1360 TC 39.7 40.1 40.9 41.5 95 S/T 1.00 1.00 1.00 1.00 kW 3.91 3.
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5. CAPACITIES AND SELECTION DATA Performance data (Cooling operation at rated frequency) 60K outdoor unit matches 48K indoor unit 59/15 Airflow Outdoor IWB (°F/℃) DB 70 75 80 85 (CMF) (°F/℃) IDB (°F/℃) /21.1 /23.9 /26.7 /29.4 40.9 41.3 42.2 42.7 TC S/T 0.99 1.00 1.00 1.00 65 kW 2.52 2.55 2.57 2.57 TC 40.9 41.5 42.3 42.7 S/T 1.00 1.00 0.99 1.00 75 kW 2.80 2.83 2.86 2.86 TC 40.3 40.8 41.6 42.2 S/T 1.00 1.00 1.00 1.00 85 kW 3.16 3.19 3.22 3.22 1360 TC 39.7 40.1 40.9 41.5 95 S/T 1.00 1.00 1.00 1.00 kW 3.80 3.
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5. CAPACITIES AND SELECTION DATA Performance data (Cooling operation at rated frequency) 60K outdoor unit matches 60K indoor unit Airflow (CMF) 1500 1700 1900 59/15 Outdoor IWB (°F/℃) DB 70 75 80 85 (°F/℃) IDB (°F/℃) /21.1 /23.9 /26.7 /29.4 47.7 48.2 49.2 49.8 TC S/T 0.99 1.00 1.00 1.00 65 kW 3.68 3.73 3.76 3.76 TC 47.7 48.4 49.3 49.8 S/T 1.00 1.00 0.99 1.00 75 kW 4.09 4.14 4.19 4.19 TC 47.1 47.6 48.5 49.2 85 S/T 1.00 1.00 1.00 1.00 kW 4.62 4.66 4.71 4.71 TC 46.3 46.7 47.7 48.4 95 S/T 1.00 1.00 1.00 1.
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5. CAPACITIES AND SELECTION DATA Performance data (Heating operation at rated frequency) 24K outdoor unit matches 18K indoor unit Airflow ID OD 72 （CFM） (°F/℃) (°F/℃) /22.2 TC 21.2 60 kW 1.15 TC 16.4 70 kW 0.86 450 TC 13.8 75 kW 0.72 TC 11.3 80 kW 0.59 TC 23.7 60 kW 1.36 TC 18.4 70 kW 0.99 600 TC 15.5 75 kW 0.83 TC 12.7 80 kW 0.68 TC 26.4 60 kW 1.59 TC 20.3 70 kW 1.14 750 TC 17.3 75 kW 0.97 TC 14.2 80 kW 0.81 67 /19.4 21.2 1.23 16.3 0.91 13.8 0.77 11.3 0.63 23.7 1.44 18.3 1.06 15.4 0.88 12.7 0.73 26.0 1.
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5. CAPACITIES AND SELECTION DATA Performance data (Heating operation at rated frequency) 36K outdoor unit matches 30K indoor unit Airflow ID OD 72 （CFM） (°F/℃) (°F/℃) /22.2 TC 36.5 60 kW 2.17 TC 28.2 70 kW 1.62 600 TC 23.8 75 kW 1.35 TC 19.5 80 kW 1.13 TC 40.8 60 kW 2.57 TC 31.6 70 kW 1.87 800 TC 26.6 75 kW 1.57 TC 21.8 80 kW 1.30 TC 45.4 60 kW 3.02 TC 34.9 70 kW 2.15 1000 TC 29.8 75 kW 1.83 TC 24.5 80 kW 1.52 67 /19.4 36.5 2.32 28.1 1.71 23.7 1.45 19.5 1.20 40.8 2.72 31.4 2.00 26.5 1.67 21.8 1.37 44.7 3.
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5. CAPACITIES AND SELECTION DATA Performance data (Heating operation at rated frequency) 48K outdoor unit matches 42K indoor unit Airflow ID OD 72 （CFM） (°F/℃) (°F/℃) /22.2 TC 49.5 60 kW 3.06 TC 38.3 70 kW 2.29 1150 TC 32.2 75 kW 1.91 TC 26.4 80 kW 1.58 TC 55.3 60 kW 3.62 TC 42.8 70 kW 2.64 1350 TC 36.1 75 kW 2.22 TC 29.6 80 kW 1.82 TC 61.6 60 kW 4.25 TC 47.3 70 kW 3.03 1550 TC 40.3 75 kW 2.58 TC 33.2 80 kW 2.15 67 /19.4 49.5 3.27 38.0 2.41 32.1 2.05 26.4 1.68 55.3 3.83 42.6 2.82 36.0 2.36 29.6 1.94 60.
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5. CAPACITIES AND SELECTION DATA Performance data (Heating operation at rated frequency) 60K outdoor unit matches 48K indoor unit Airflow ID OD 72 （CFM） (°F/℃) (°F/℃) /22.2 TC 56.6 60 kW 3.40 TC 43.7 70 kW 2.54 1360 TC 36.8 75 kW 2.12 TC 30.2 80 kW 1.76 TC 63.2 60 kW 4.03 TC 49.0 70 kW 2.93 1560 TC 41.2 75 kW 2.47 TC 33.8 80 kW 2.03 TC 70.3 60 kW 4.73 TC 54.1 70 kW 3.37 1760 TC 46.1 75 kW 2.87 TC 37.9 80 kW 2.39 67 /19.4 56.6 3.64 43.4 2.68 36.7 2.28 30.2 1.87 63.2 4.26 48.7 3.14 41.1 2.62 33.8 2.15 69.
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5. CAPACITIES AND SELECTION DATA 5.2 Piping length correction factor Indoor unit Pipe length L Height difference H Outdoor unit Add. Max. Height Refrigerant difference [exceed 25ft (H) 7.6m] Model Max. Pipe length (L) 24K 164ft. (50m) 98ft. (30m) 0.38(oz/ft) [35(g/m)] 36K 246ft. (75m) 98ft. (30m) 0.38(oz/ft) [35(g/m)] 48K/60K 246ft. (75m) 98ft. (30m) 0.
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5. CAPACITIES AND SELECTION DATA The correction factor of height between indoor unit and outdoor unit Height difference Factor 16ft (5m) 33ft (10m) 108ft (30m) 0.02 0.025 0.01 To ensure correct unit selection, consider the farthest indoor unit. NOTE: 1. Above data is assuming that the height difference between indoor unit and outdoor unit is 0m. 2. Be sure to minimize length of connection pipes to optimize performance.
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6.�SOUND PRESSURE DATA 6. Sound pressure data Outdoor unit Model Test condition 24K 3.28ft(1.0m) in front of the unit; 2.7ft (0.83) high from the bottom of the unit; 3.28ft (1.0m) above the ground. Test condition 90 3.28ft. (1.0m) in front of the unit; 3.28ft. (1.0m) above the bottom of the unit.
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7. REFRIGERANT CYCLE 7.
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7.
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8. WIRING DIAGRAM 8. Wiring diagram 8.1 Electrical wiring diagram 24K/36K Electric wiring diagram 2150423.D DIP Switch Setting of Outdoor Unit Turn on the power before setting the DIP switch. Without turning on, the swithes do not work and the content of the setting are invalid. Mark of " " indicates the position of DIP switches.
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8. WIRING DIAGRAM 48K/60K Electric wiring diagram 2153502.D DIP Switch Setting of Outdoor Unit DIP switches.
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8.�WIRING DIAGRAM 8.2 Control board picture 24K/36K Main control board 1 3 4 56 7 2 8 9 10 11 12 22 13 14 15 16 17 18 21 20 19 26 25 24 23 NO. Description NO.
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8. WIRING DIAGRAM 7-Segment display board 1 2 3 6 5 4 NO. 4 S3-Decrease Button NO.
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8. WIRING DIAGRAM 48K/60K Main control board S4 1 S5 20 2 19 S1 S2 3 S3 4 18 5 17 6 16 7 8 15 14 NO. 13 Description 12 11 10 NO.
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8. WIRING DIAGRAM Drive board 3 1 2 4 12 5 11 10 6 9 8 7 NO. Description NO.
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8. WIRING DIAGRAM Filter board 1 2 5 4 3 NO. Description NO.
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8. WIRING DIAGRAM 8.3 Common wiring Recommended Wire Size ELB Model (Btu/h) Power Supply 36K 24K Power Source Transmitting Fuse or Circuit Cable Size Cable Size Breaker (A) Rated Current (A) Nominal Sensitive Current (mA) 208/230V ~/60Hz 25 30 3×12AWG 5×16AWG 25 48K/60K 36K 208/230V ~/60Hz 35 30 3×10AWG 5×16AWG 35 48K/60K 208/230V ~/60Hz 50 30 3×8AWG 5×16AWG 50 Max. Running Current (A): REFER TO NAMEPLATE NOTE: 1.
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9. FIELD SETTING 9. Filed setting DIP Switch Setting of Outdoor Unit (Optional setting) 1. Turn on all power sources before setting. Without turning on, the switches settings are not refreshed and might be invalid. (24K/36K) 2. Turn off all power sources before setting. Without turning off, the switches settings are not refreshed and might be invalid.(48K/60K) 3. Mark of " " indicates the position of DIP switches.
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9. FIELD SETTING Step 4: Open the maintenance panel. Step 5: Switch the dial code (referring to outdoor wiring diagram ) ON position on the main control board. Step 6: Switch on the machine power. Step 7: Check if “40” is displayed on the LED digital tube of the main control board. Step 8: When the numerals on the LED digital tube of outdoor unit count down to 0 (40 → 39 → 38 ... 0), and “0” begins to blink, close the shut-off valve of the gas piping with an Allen wrench in a clockwise direction.
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9. FIELD SETTING 9.2 Running parameter query Query by 7 segment display 7 segment display Digital display switch 7-segment display Introduction 24K/36K ● ● ● S2 S1 Select S3 Decrease Increase There are 3 buttons on the digital display board： 1) Select button: Select to display outdoor/indoor unit parameter. "P." -- Parameter of outdoor unit 2) INCREASE button：Each time it is pressed, the number rises by 1. 3) DECREASE button：Each time it is pressed, the number lowers by 1.
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9. FIELD SETTING Parameters can be checked in the following table below. Parameter code Descriptions P.0 Fault codes P.1 Compressor actual frequency P.2 Compressor driving frequency P.4 Compressor target frequency P.5 Compressor exhaust temperature P.6 Outdoor suction temperature P.7 Outdoor ambient temperature P.8 Outdoor coil temperature P.9 Outdoor defrosting temperature P.10 IPM module temperature P.11 Outdoor capacity requirement P.13 Outdoor DC Motor target speed P.
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9. FIELD SETTING 48K/60K ● ● S1 S2 ● S3 Select Increase Decrease There are 3 buttons on the digital display board： 1) SWITCH button: Indoor parameters and outdoor parameters can be selected in turn by pressing it. “P.”/“H.”-outdoor unit parameter 2) INCREASE button: Each time it is pressed, the number rises by 1, hold down it, the number will be rapidly increased; 3) DECREASE button： Each time it is pressed, the number lowers by 1, hold down it, the number will be rapidly decreased.
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10. PIPING WORK AND REFRIGERANT CHARGE 10. Piping work and refrigerant charge 10.1 MAX. length allowed Indoor unit Height difference H Pipe length L Outdoor unit Add. Max. Height Refrigerant difference [exceed 25ft (H) 7.6m] Model Max. Pipe length (L) 24K 164ft. (50m) 98ft. (30m) 0.38(oz/ft) [35(g/m)] 36K 246ft. (75m) 98ft. (30m) 0.38(oz/ft) [35(g/m)] 48K/60K 246ft. (75m) 98ft. (30m) 0.60(oz/ft) [56(g/m)] Additional refrigerant charge 24K/36K: Additional refrigerant charge= (L-25) ft×0.
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10. PIPING WORK AND REFRIGERANT CHARGE 10.3 Air tight test Do use nitrogen when performing air-tight test. Connect the gauge manifold using charging hoses with a nitrogen cylinder to the check joints of the liquid line and the gas line stop valves. Perform the air-tight test. Don't open the gas line stop valves. Apply nitrogen gas pressure of 550 psig (3.8MPa). Check for any gas leakage at the flare nut connections, or brazed parts by gas leak detector or foaming agent.
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11. INSTALLATION TOOLS AND INSTALLATION FLOW CHART 11. Installation tools and installation ﬂow chart 11.1 Necessary tools and instrument list for installation Necessary Tools and Instrument List for Installation No. Tool No. Tool No. Tool No.
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11. INSTALLATION TOOLS AND INSTALLATION FLOW CHART 11.2 Installation ﬂow chart Drawing audit Preparation before installation Confirm installation location of indoor unit and outdoor unit Indoor unit installation Refrigerant piping installation Drain piping installation Duct installation Heat insulation Outdoor unit installation Vacuum pumping and leakage detection Additional refrigerant charge Test run NOTE: This flow is only for reference; for details please see installation manual section.
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12. CONTROL MODE 12. Control mode Control function 1. Cooling Anti-Freeze Protection The outdoor pressure sensor functions as real time temperature detector of evaporator. It prevents the indoor unit evaporator temperature becoming too low. If the indoor coil temperature is too low, the compressor will automatically start protection mode. 2.
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13. SENSOR PARAMETER 13. Sensor parameter 1. THE PARAMETER OF OUTDOOR COMPRESSOR DISCHARGE TEMPERATURE SENSOR: (R0=187.25K±6.3%；R100=3.77K±2.5K；B0/100=3979K±1%) DR: Deviation Rate DR(MIN)%=（Rmin-Rnom）/Rnom*100% DR(MAX)%=（Rmax-Rnom）/Rnom*100% T[℃] -30 -29 -28 -27 -26 -25 -24 -23 -22 -21 -20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Rmin [ KΩ ] 908.2603 855.3955 805.9244 759.6097 716.2320 675.5881 637.4902 601.7645 568.2499 536.7970 507.
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13. SENSOR PARAMETER T[℃] 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 Rmin [ KΩ ] 71.2227 68.1036 65.1373 62.3155 59.6306 57.0752 54.6424 52.3258 50.1192 48.0168 46.0133 44.1034 42.2825 40.5458 38.8891 37.3084 35.7998 34.3596 32.9844 31.6710 30.4164 29.2176 28.0718 26.9765 25.9293 24.9277 23.9697 23.0530 22.1757 21.3360 20.5321 19.7623 19.0261 18.3211 17.6458 16.9986 16.3784 15.
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13. SENSOR PARAMETER T[℃] 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 Rmin [ KΩ ] 8.0951 7.8290 7.5730 7.3264 7.0891 6.8605 6.6403 6.4282 6.2239 6.0269 5.8371 5.6542 5.4777 5.3076 5.1435 4.9853 4.8326 4.6852 4.5430 4.4058 4.2733 4.1453 4.0218 3.9024 3.7872 3.6758 3.5661 3.4601 3.3577 3.2588 3.1632 3.0708 2.9816 2.8953 2.8118 2.7311 2.6531 2.5776 2.
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13. SENSOR PARAMETER 2. THE PARAMETER OF THE OTHER SENSOR:(R0=15K±2%;B0/100=3450K±2%) DR: Deviation Rate DR(MIN)%=（Rmin-Rnom）/Rnom*100% DR(MAX)%=（Rmax-Rnom）/Rnom*100% T [℃] -30 -29 -28 -27 -26 -25 -24 -23 -22 -21 -20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Rmin [ KΩ ] 60.78 57.75 54.89 52.19 49.63 47.21 44.92 42.76 40.71 38.77 36.93 35.18 33.53 31.96 30.48 29.07 27.73 26.46 25.26 24.11 23.03 21.99 21.01 20.08 19.19 18.
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13. SENSOR PARAMETER T [℃] 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 Rmin [ KΩ ] 5.667 5.449 5.240 5.048 4.864 4.687 4.517 4.355 4.198 4.048 3.904 3.766 3.663 3.506 3.383 3.265 3.152 3.043 2.938 2.838 2.741 2.648 2.558 2.472 2.389 2.309 2.232 2.158 2.087 2.018 1.952 1.888 1.827 1.767 1.710 1.655 1.602 1.551 1.502 1.452 1.409 1.364 1.322 1.280 1.241 1.202 1.165 1.129 1.095 1.061 1.
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13. SENSOR PARAMETER T [℃] 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 Rmin [ KΩ ] 0.8570 0.8316 0.8071 0.7834 0.7604 0.7382 0.7167 0.6958 0.6755 0.6560 0.6371 0.6188 0.6011 0.5840 0.5674 0.5514 0.5359 0.5209 0.5064 0.4923 0.4787 0.4655 0.4528 0.4404 0.4284 0.4168 0.4056 0.3947 0.3841 0.3739 0.3640 0.3544 0.3450 0.3360 0.3272 0.3187 0.3104 0.3024 0.2947 0.2871 0.2798 0.2727 Rnom [ KΩ ] 0.9246 0.8977 0.
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14. TROUBLESHOOTING 14. Troubleshooting 14.1 Trouble guide Troubleshooting for normal malfunction Troubleshooting Air conditioner can not start up Possible Reasons of Abnormality 1. Check power supply circuit; 2. Measure insulation resistance to 1. Power supply failure; ground to see if there is any 2. Trip of breaker or blow of fuse； leakage; 3. Power voltage is too low; 3. Check if there is a defective contact or leak current in the power supply 4. Improper setting of remote circuit; controller ; 5.
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14. TROUBLESHOOTING Outdoor unit 24K/36K DC-Inverter unitary (Main control board upside-down) 1) Fault code displayed by LED lamps on outdoor main control board. There are 3 LED lamps on control board, LED1, LED2 and LED3. LED1 indicates the ten's place of the fault code, LED2 indicates the unit's place of the fault code and LED3 indicates outdoor drive control fault. When LED3 is off, LED1 and LED 2 indicate main control fault code. When LED3 is on, LED1 and LED 2 indicate drive control fault code.
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14. TROUBLESHOOTING 2) Display by 7 segment display board. Fault code will be displayed directly on 7 segment display board. 48K/60K Main control fault display Fault code will be displayed by 7 segment display on main control board. : Show failure occur. Display ERROR code. Drive fault code display The lamp of drive board flashing shows failure occurs. How many times the drive failure lamp flicker will show the failure code.
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14. TROUBLESHOOTING 14.2 Fault codes The following is the fault code table of outdoor units. Table 1 Outdoor fault code Fault code 1 2 3 Fault description Possible reasons for abnormality 1.Reconnect the outdoor ambient temperature sensor; 1.The outdoor ambient temperature 2.Replace the outdoor ambient Outdoor ambient sensor is connected loosely; temperature sensor temperature sensor 2.The outdoor ambient temperature components; fault sensor fails to work; 3.Replace the outdoor control 3.
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14. TROUBLESHOOTING Fault code 13 14 15 Fault description Possible reasons for abnormality 1. The wiring of the overload protector is connected loosely. 2. The overload protector fails . 3. The refrigerant is not enough; Compressor overheat 4. The installation pipe is much protector device longer than the normal one, but extra refrigerant is not added ; 5. The expansion valve fails; 6. The outdoor control board fails.
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14. TROUBLESHOOTING Fault code 45 46 47 48 49 91 Fault description Possible reasons for abnormality There are many reasons for this failure. You can check the driver board fault LED to further analyze the fault code of the drive board and IPM fault to learn about what leads to the fault and how to operate it. Specific information can be seen in table 2, table 3. 1.The cable between the control board and the driver board is connected loosely; IPM and control board 2.
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14. TROUBLESHOOTING NOTE 1: If the indoor unit can not start or the indoor unit stops itself after 30s, at the same time the unit does not display the fault code, please check the fire and the socket of the control board. NOTE 2: If the indoor unit displays the 75,76,77,78 fault code after you turn on the unit, please check the TEST seat of the indoor control board or the TEST detection circuit to see whether short circuit occurs. NOTE 3: Overload in cooling mode Overload in cooling mode sr.
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14.
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14. TROUBLESHOOTING Table 3 Drive fault code (48K/60K) Fault code 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Fault description Q axis current detection, failure in drive control Possible reasons for abnormality 1. Compressor wire is not connected properly; 2. Bad driver board components; 3. Compressor start load is too large; 4. Compressor demagnetization; 5. Compress or oil shortage serious wear of crankshaft; 6. The compressor insulation fails. How to deal with 1.
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14. TROUBLESHOOTING Fault code 16 18 19 20 21 Fault description Low DC voltage 200V Driver board read EE data error PFC chip receives data fault PFC soft start abnormally The compressor drive chip could not receive data from PFC chip. Possible reasons for abnormality How to deal with 1. Voltage input is too low; 2. Drive board fault. 1. EEPROM has no data or data error; 2. EEPROM circuit fault. 1. Check the power supply. 2. Change the driver board. 1. Change EEPROM component; 2.
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15. CHECKING COMPONENTS 15. Checking components 15.1 Check refrigerant system TEST SYSTEM FLOW: Conditions: ① Compressor is running. The air condition should be installed in good ventilation. Tool: Pressure Gauge Technique: ① see ② feel ③ test See ----- Tube defrost. Feel ----- The difference between tube’s temperature. Test ----- Test pressure. Cooling mode NO Test system pressure. Is the low pressure normal at service part ? The pressure on the high side.
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15. CHECKING COMPONENTS Heating mode Test system pressure. Is the high pressure normal at service part ? The pressure on the high side. Recharge refrigerant after air purging with the vacuum pump. Is the high pressure normal over again? The pressure on the low side. NO The system needs refrigerant. The service people must add refrigerant. Does the high pressure rise in heating mode? NO Remove the back panel."see"the capillary tube1 and capillary tube2.
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16. CHECKING COMPONENTS Thermal Sensor DC Inverter & Controller Power Compressor Test in resistance. TOOL: Multi-meter. Test the resistance of the winding. The compressor fails if the resistance of winding is 0 (short circuit)or∞(open circuit). Familiar error: 1) Compressor motor lock. 2) Discharge pressure value approaches static pressure value. 3) Compressor motor winding abnormality. NOTE： 1) Don’t put a compressor on its side or turn over.
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16. DISASSEMBLY AND ASSEMBLY FOR COMPRESSOR AND MOTOR 16. Disassembly and assembly for compressor and motor The special tools for compressor & motor disassembly and assembly： Tool Hexagon Screwdriver 1 Hexagon Socket 2 Outdoor unit 24K Important: Before disassembly and assembly, make sure that the power to the system has been disconnected and verified as voltage free. Step Illustration Handling Instruction 1. Remove external casing 1. Remove the top cover, handle and valve cover; 2.
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16. DISASSEMBLY AND ASSEMBLY FOR COMPRESSOR AND MOTOR Outdoor unit 36K Important: Before disassembly and assembly, make sure that the power to the system has been disconnected and verified as voltage free. Step Illustration Handling Instruction 1. Remove external casing 1. Remove the top cover, handle and valve cover; 2. Remove the outer case and right side plate. 2. Remove motor 1. Remove the blade nut and then remove the blade; 2. Remove the motor from motor supporter. 1.
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16. DISASSEMBLY AND ASSEMBLY FOR COMPRESSOR AND MOTOR Outdoor unit 48K/60K Important: Before disassembly and assembly, make sure that the power to the system has been disconnected and verified as voltage free. Step Illustration Handling Instruction 1. Remove the top cover, handle and valve cover. 1. Remove external casing 2. Remove the outer case and right side plate. 1. Remove the blade nut and then remove the blade. 2. Remove motor 2. Remove the motor from motor supporter. 1.
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17. CONTORL LOGIC DESCRIPTION 17. Control logic description 17.1 An illustration to outdoor unit signal (1) Communication between indoor and outdoor units: The communication between the outdoor unit, thermostat and the indoor unit is achieved through 24V alternating current, as shown in ﬁgure below. The thermostat controls the signal output of Y and B, and the outdoor unit identiﬁes its operation mode according to these two signals.
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17. CONTORL LOGIC DESCRIPTION Compressor running rules: When the unit starts up in cooling mode, the compressor starts to work, and adjust its operating frequency according to the system target pressure and the actual pressure. If the actual pressure is higher than the target pressure, the compressor frequency will rise; if the actual pressure is lower than the target pressure, the compressor frequency decreases; when the target pressure is reached, the compressor frequency will keep stable.
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17. CONTORL LOGIC DESCRIPTION ③ When the compressor signal and 4-way valve signal received from the thermostat are high level, that is Y-C and B-C are high level, the unit restores the normal target pressure to operate or when the compressor has operated for 30min【e2】with the decreased target pressure, it is taken as it has stopped operating.
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17. CONTORL LOGIC DESCRIPTION 17.5 Condenser High-temperature Protection DC-Inverter outdoor unit AC will enter T3 protection if any of the following conditions is satisfied. Condition1: Cooling mode: When the outdoor coil temp. T3 keeps higher than T2 for 10 seconds, the compressor and outdoor fan will shut off. When T3 is lower than T1, the compressor and outdoor fan will restart up.
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The design and specifications of this product are subject to change without prior notice as development continues. Consult with the sales agency or manufacturer for details. Refer to the equipment nameplate for all other applicable specifications. is a registered trademark of Parker Davis HVAC International, Inc. Parker Davis HVAC International, Inc. 3250 NW 107 Avenue, Doral, FL 33172 - USA Tel : (305) 513-4488 Fax : (305) 513-4499 E-mail : info@pdhvac.com Website : www.pdhvac.