Chigo CS-25V1A-H1; CS-35V1A-E2; CS-50V9A-S;... User manual

DC Inverter Split Air-Condition Unit
SERVICE MANUAL

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Table of Contents
1. Air conditioning unit parameters.........................................................................................1-1
2. Units operating working conditions and temperature range ...........................................2-1
3. Units characteristic .............................................................................................................3-1
4. Indoor and outdoor units size ............................................................................................4-1
5. Indoor and outdoor unit explosion diagram and spare parts list ....................................5-1
6. The analysis of indoor malfunction code ..........................................................................6-1
7. The analysis of the complete units malfunction code .......................................................7-1

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1、Air conditioning unit parameters

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2、Units operating working conditions and temperature range
2.1 Rated conditions
The Standard condition is in accordance with ANSI/AHAM RAC-1-2003, and UL
484.
Cooling:
Indoor: 80oFDB 67oF WB
Outdoor: 95oF DB 75oF WB
Heating:
Indoor: 70oF DB 60oF WB
Outdoor: 47
oF DB 43oF WB
2.2 Operating Limits
Outdoor
Upper limit (DB) 110 oF
Cooling
Lower limit (DB) 5oF
Upper limit (DB) 75oF
Heating
Lower limit (DB) 5oF
2PH 198–264V/115V
Voltage 3PH N/A

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3、Units characteristic
☆Wide operating range with outdoor air temperatures up to -15℃in cooling for the Heat pump
☆High efficiency and energy saving
☆Auto-restart after a power supply blackout
☆Single-phase power supply thanks to DC inverter technology low consumption
☆Dynamic refrigerant control by DC inverter compressor and circuit, electronic valve and fuzzy logic
managed by a powerful micro program
☆EEV for each indoor unit
We leaded to adapt 180°sine wave with permanently magnetic and synchronized
Brushless motor, compressor motivated from 120°square wave control to 180°
sine wave. These contribute higher efficiency, lower power consumption and noise.
Compressormotivated
by180°sine wave
High precision of flow control valve, Compared with the on/off unit, DC inverter
with large range of flow, accurate has the advantage of fast refrigeration of
control, these could implement calefaction, accurate temperature control,
automatically control to refrigerant reliable system, high efficiency and so on.
and help system always run at the
best condition..

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In fact , the new CS is a high efficiency DC inverter technology outdoor unit，its
SEER is as high as 21 for the 12K unit。when compared to SEER13 ，it can
save electricity 38℅in a year.
The curve diagram of the compressor energy consumption
COP (W/W)/2ND

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The curve diagram of the compressor condensing pressure

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Cooling Capacity (BTU)---Run Model,230/115V,Indoor fan at high speed
INDOOR ENTERING AIR DB/WB TEMPERATURE [0F]
OUTDOOR
ENTERING AIR DB
TEMPERATURE[0F] DATA 72/59 75/63 81/66 84/70 90/73
TC 80 - 110 % of nominal
SC 80 - 105 % of nominal
14~68
(protection range) PI 25 - 50 % of nominal
TC 11616 12336 13104 13872 14640
SC 10421 10603 10845 11027 11269
77
PI 0.72 0.73 0.75 0.76 0.77
TC 11040 11808 12576 13296 14064
SC 10118 10361 10542 10785 10966
86
PI 0.81 0.82 0.83 0.85 0.86
TC 10464 11232 12000 12768 13536
SC 9876 10058 10300 10542 10724
95
PI 0.88 0.90 0.92 0.93 0.94
TC 9936 10704 11424 12192 12960
SC 9634 9815 10058 10239 10482
104
PI 0.97 0.98 0.99 1.01 1.02
TC 9264 10032 10752 11520 12288
SC 9270 9512 9694 9936 10118
115
PI 1.07 1.08 1.09 1.11 1.13
LEGEND
TC – Total Cooling Capacity, BTU SC – Sensible Capacity, BTU PI – Power Input, kW
WB – Wet Bulb Temp., (0F) DB – Dry Bulb Temp., (0F) ID – Indoor OD – Outdoor

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Heating Capacity (KW)---Run Model,230V,Indoor fan at high speed
ID COIL ENTERING AIR DB TEMPERATURE [0F]
OD COILENTERING
AIR DB/WB TEM
PERATU RE[0F] DATA 59 68 77
TC 8960 8260 7700
5/3 PI 0.66 0.73 0.80
TC 9940 9240 8680
14/10 PI 0.80 0.87 0.95
TC 10640 10080 9380
20/18 PI 0.91 0.97 1.04
TC 11060 10500 9800
30/28 PI 0.96 1.02 1.08
TC 11340 10640 10080
36/34 PI 0.99 1.06 1.12
TC 14560 14000 13440
45/43 PI 1.04 1.11 1.18
TC 15400 14840 14140
50/48 PI 1.11 1.18 1.25
TC 16240 15680 14980
59/54 PI 1.16 1.22 1.30
TC 85 - 105 % of nominal
59~75
(Protection Range) PI 80 - 120 % of nominal
LEGEND
TC – Total Cooling Capacity, BTU SC – Sensible Capacity, BTU PI – Power Input, kW
WB – Wet Bulb Temp., (0F) DB – Dry Bulb Temp., (0F) ID – Indoor OD – Outdoor

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Capacity Correction Factors
Cooling Capacity Ratio Vs. Outdoor Temperature
Heating Capacity Ratio Vs. Outdoor Temperature
Cooling Capacity Correction Factor
0
0.2
0.4
0.6
0.8
1
1.2
1.4
77 86 95 104 115
Outdoor Temp.(deg F)
Capacity Ratio
90/73
84/70
81/66
75/63
72/59
Heating Capacity Correction Factor
0
0.2
0.4
0.6
0.8
1
1.2
1.4
5 14203036455059
Outdoor Temp.(deg F)
Capacity Ratio
59
68
77

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Capacity Correction Factor Due to Tubing Length (One Way)
Cooling
Heating

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Pressure Curve
Suction Pressure Curve
Discharge Pressure Curve

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ELECTRICAL DATA
Model CS-25V1A-H1
Power Supply 1 PH, 115 VAC,60Hz
Connected to Outdoor
Maximum Current 9.3A
Inrush Current 40A
Starting Current 1A
Circuit breaker 20A
Power supply wiring - No. x cross section 1 X 3 X 2.5 mm2
Interconnecting cable - No. x cross section 2 X 4 X 1 mm2
Model CS-35V1A-E2
Power Supply 1 PH, 115 VAC,60Hz
Connected to Outdoor
Maximum Current 10.8A
Inrush Current 40A
Starting Current 1A
Circuit breaker 20A
Power supply wiring - No. x cross section 1 X 3 X 2.5 mm2
Interconnecting cable - No. x cross section 2 X 4 X 1 mm2
Model CS-50V9A-S
Power Supply 1 PH, 230 VAC,60Hz
Connected to Outdoor
Maximum Current 10.1A
Inrush Current 40A
Starting Current 1A
Circuit breaker 20A
Power supply wiring - No. x cross section 1 X 3 X 2.5 mm2
Interconnecting cable - No. x cross section 2 X 4 X 1 mm2
Model CS-70V9A-T
Power Supply 1 PH, 230 VAC,60Hz
Connected to Outdoor
Maximum Current 12.2A
Inrush Current 35A
Starting Current 1A
Circuit breaker 20A
Power supply wiring - No. x cross section 1 X 3 X 2.5 mm2
Interconnecting cable - No. x cross section 2 X 4 X 1 mm2

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4、Indoor and outdoor units size
4.1 outdoor Unit: CS-25V1A-H1
4.2 outdoor Unit: CS-35V1A-E2

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4．3 outdoor Unit: CS-50V9A-S
4.4 outdoor Unit: CS-70V9A-T

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4.5（Indoor unit）figure、mounting dimensions
Aunit：mm
Machine body size mounting dimensions
Size symbol
Indoor model A B C D E F
CS-25V1A-M 800 280 195 490 / /
CS-35V1A-P 900 296 220 583 257.5 257.5
CS-50V9A-S（W） 1068(1080) 325(305) 240(214) 700(696) 305(305) 315(315)
CS-70V9A-Q 1225 325 245 685 311.5 311.5

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5、Indoor and outdoor unit explosion diagram and spare parts list
5.1、The explosion diagram and spare parts list for CS-25V1A-H1

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5.2 、The explosion diagram and spare parts list for CS-25V1A-M81A
ON
OFF