Hisense AMS-09UR4SNZA2 User manual

MULTI-SPLIT TYPE AIR CONDITONER
SERVICE MANUAL V: 2.0
●INDOOR UNIT:
AMS-09UR4SNZA2
AMS-12UR4SNZA2
●INDOOR UNIT:
AMW2-20U4SKB
AMW3-24U4SKB
AMW4-28U4SKB
HisenseCorporation

Table of contents
Page
1．OPERATING RANGE 1
2．SPECIFICATION 2
2-1 Unit specifications 2
2-2 Major component specifications 4
2-3 Other component specifications 5
3．OUTLINES AND DIMENSIONS 6
3-1 INDOOR 6
3-2 OUTDOOR 7
4．REFRIGERANT FLOW DIAGRAM 9
4-1 Refrigerant flow diagram 9
4-2 Evacuation procedures 11
4-3 Evacuation direction 12
5．ELECTRICAL DATA 13
5-1 Electric wiring diagrams 13
5-2 Electric control 15
5-3 Sensor parameter 18
6．CONTROL MODE 20
6-1 Indoor control mode 16
6-2 Outdoor control mode 25
7．TROUBLESHOOTING 31
7-1 Error codes 31
8．CHECKING COMPONENTS 33
8-1 Check refrigerant system 33
8-2 Check parts unit 35
9．PARTS LIST 39
9-1 Indoor 39
9-2 Outdoor 44

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1. . O OP PE ER RA AT TI IN NG G R RA AN NG GE E
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Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp
Maximum 32℃D.B./23℃W.B. 43 ℃D.B./26℃W.B. COOLING Minimum 21℃D.B./15℃W.B. 21 ℃D.B./15℃W.B.
Maximum 27℃D.B./18℃W.B. 24℃D.B./18℃W.B. HEATING Minimum 20℃D.B/≤15℃W.B -7℃D.B./-8℃W.B.

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2. . S SP PE EC CI IF FI IC CA AT TI IO ON NS S
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2-1. Unit specifications
2-1-1.OUTDOOR UNIT
NOTE :Test conditions：
Cooling : Indoor: DB27℃/ WB19℃Outdoor: DB35℃/ WB24℃
Heating: Indoor: DB20℃/ WB15℃Outdoor: DB7℃/ WB 6℃
Model AMW3-24U4SKB AMW4-28U4SKB AMW2-20U4SNB
Function Cooling Heating Cooling Heating Cooling Heating
Power supply a.c 220V~230V/50Hz
Capacity kW 7.0 8.0 8.2 9.0 5.8 6.4
Dehumidification l /h ---- ---- ---- ---- ---- ----
Capacity Air flow m3/h ---- ---- ---- ---- ---- ----
Rated current A 9.7 10.7 10.7 11.1 7.73 8.0
Rated input kW 2.18 2.22 2.4 2.5 1.7 1.75
Auxiliary heater A ------
Power factor % 99.9％99.9％99.9％
Electrical
data
Max. current A 15.0 15.0 14.5
SEER/HSPF ----
Model JU1015D5 JU1015D5 SNB130FGYM
Compressor
Winding resistance (at25 ℃)
Ω0.661/0.650/0.639 0.661/0.650/0.639 0.58（20 ℃ ）
Model YDK70-6H-3 YDK70-6H-3 YDK55-6I-8Outdoor
fan motor
Winding resistance (at20 ℃ )
Ω M:78;A:80 M:78;A:80 M:185;A:200
Net size L×W×H cm 75×19×25 103×34×84 98×35×64
Package
size L×W×H cm 84×27×31 112×46×98 108×42×72
Net weight kg 8.0 67 45
Gross weigh
t
kg 9.5 72 51
Liquid pipe mm 6.35 6.35
Gas pipe mm 9.52 9.52
Refrigerant
piping Connection method Flare Flare
Air direction ---- ---- ----
Sound level (Hi) dB 57 57 57
Fan speed (Hi) rpm 830 830 840
Fan speed regulator 3 3 3
Refrigerant filling
capacity(R410a) kg 2.2 2.5 1.4
Special
remarks
Throttle mode EEV EEV EEV

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2. . S SP PE EC CI IF FI IC CA AT TI IO ON NS S
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2-1-2.INDOOR UNIT
NOTE :Test conditions：
Cooling : Indoor: DB27℃/ WB19℃Outdoor: DB35℃/ WB24℃
Heating: Indoor: DB20℃/ WB15℃Outdoor: DB7℃/ WB 6℃
Model AMS-09UR4SNZA2 AMS-12UR4SNZA2
Function Cooling Heating Cooling Heating
Power supply a.c 220V~230V/50Hz
Capacity kW 2.6 3.0 3.2 3.8
Dehumidification l /h 1.1 1.1 1.4 ----
Capacity Air flow m3/h 420 520 450 560
Running current A 0.18 0.18 0.18 0.18
Rated input kW 40 40 40 40
Auxiliary heater A ----
Power factor % ----
Electrical data
Starting current A ----
SEER/HSPF ----
Model ----
Compressor Winding resistance (at25℃) Ω----
Model YYW16-4-532 YYW16-4-532Indoor
fan motor Winding resistance (at20℃) ΩM:364;A:400.5; M:364;A:400.5;
Model ----Outdoor
fan motor Winding resistance (at20℃) Ω----
Net size L×W×H cm 75×25×19 75×25×19
Package size L×W×H cm 84×31×27 84×31×27
Net weight kg 8.0 8.0
Gross weight kg 9.5 9.5
Liquid pipe mm 6.35
Gas pipe mm 9.52
Refrigerant
piping Connection method ----
Air direction 6 6
Sound level (Hi) dB 37 37
Fan speed (Hi) rpm 1200 1300
Fan speed regulator
Refrigerant filling
capacity(R410a) kg ----
Special
remarks
Throttle mode ----

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2. . S SP PE EC CI IF FI IC CA AT TI IO ON NS S
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2-2. Major component specifications
2-2-1.INDOOR FAN MOTOR
PARAMETER
ELECTRIC
PERFORMANCE AMS-09UR4SNZA2 AMS-12UR4SNZA2
Motor model YYW16-4-532 YYW16-4-532
Rated power source 220V 50Hz 220V 50Hz
Phases/Poles 1/4 1/4
Rated load output(W) 16 16
Rated speed(r/min) -- --
Ambient
temperature(℃)
-5℃～+43℃. -5℃～+43℃.
2-2-2 OUTDOOR FAN MOTOR
PARAMETERELECTRIC
PERFORMANCE AMW3-24U4SKB
AMW4-28U4SKB AMW2-20U4SNB
Motor model YDK70-6H-3 YDK55-6I-8
Rated power source 220V 50Hz 220V 50Hz
Phases /Poles 1/6 1/6
Rated load output(W) 65 47
Ambient temperature(℃) -5℃～+43℃. -5℃～+43℃.
2-2-3. COMPRESSOR
PARAMETERELECTRIC
PERFORMANCE AMW3-24U4SKB
AMW4-28U4SKB AMW2-20U4SNB
Compressor model JU1015D5 SNB130FGYM
Compressor type Rotary Rotary
Rated power 1585W 1190W
Current (A) 8.8 8.1
Motor type DC brushless motor DC brushless motor
Starting type DC Inverter DC Inverter
Motor
Winding resistance
0.661/0.650/0.639 Ω (at 25 ℃ )
U-V/V-W/W-U
0.58/0.58/0.58 Ω (at 20 ℃ )
U-V/V-W/W-U
Number of cylinder 2 2
Oil type HAF68D1 or HAF68D1U
or α8HES-H
FV50S
Oil charge (cc) 840 350
Ambient temperature(℃) -5℃～+43℃. 5℃～+43℃

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2. . S SP PE EC CI IF FI IC CA AT TI IO ON NS S
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2-3. Other component specifications
2-3-1. INDUCTANCE
PARAMETER
ELECTRIC
PERFORMANCE AMW3-24U4SKB
AMW4-28U4SKB
AMW2-20U4SNB
Inductance model RC800HS-3 R2050HSB
Rated power source 220V 50Hz 220V 50Hz
Rated current(A) 20 20
Rated inductance 800(μH)±20% 5.2（mH）±10%
Ambient
temperature(℃)
-30℃～+155℃. -30℃～+220℃.
2-3-2. FILTER
PARAMETERELECTRIC
PERFORMANCE AMW3-24U4SKB
AMW4-28U4SKB
AMW2-20U4SNB
Filter model RTNF250-25T068X-03LF RTNF250-25T068X-03LF
Rated current(A) 20 20
Rated power source AC 220V—50Hz AC 220V—50Hz
Filter frequency
range
150K—30MHHz 150K—30MHHz
Temperature
range(℃)
-25℃～+85℃. -25℃～+85℃.
2-3-4. STEPPER MOTOR
PARAMETERELECTRIC
PERFORMANCE AMS-09UR4SNZA2 AMS-12UR4SNZA2
Stepper Motor model 24BYJ48-CP 24BYJ48-CP
Voltage(DC) 12V 12V
Number of phase 4 4
Drive mode 1-2phase excitation
unipolar drive
1-2phase excitation
unipolar drive
Resistance per phase 300Ω±7% 300Ω±7%
Temperature
range(℃)
-10℃～+40℃. -10℃～+40℃.
2-3-5. OVERLOAD PROTECTION
NONE.

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3-1. INDOOR（MODEL: AMS-09UR4SNZA2、AMS-12UR4SNZA2）
23mm631mm
94mm
190mm
250mm
750mm
50mm
50mm 50mm
65mm

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3-2.OUTDOOR（MODEL: AMW2-20U4SNB）

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3. . O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO O
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3-3.OUTDOOR（MODEL: AMW3-24U4SKB、AMW4-28U4SKB）