Hisense AUF-48UR6RTMPA Operating manual

TECHNICAL & SERVICE MANUAL V1.0
—DC-INVERTER AIR CONDITIONERS
MODEL:
AUF-48UR6RTMPA
R32
Refrigerant

1. General ................................................................................................................................1
1.1 Features ......................................................................................................................2
1.2 Product lineup .............................................................................................................2
1.3 Nomenclature .............................................................................................................2
1.4 Unit installation ...........................................................................................................2
1.5 Working range.............................................................................................................3
1.6 Product appearance....................................................................................................4
2. Specifications .......................................................................................................................7
3. Outlines and dimensions......................................................................................................9
3.1 Indoor units .................................................................................................................9
3.2 Outdoor units.............................................................................................................10
4. Electrical data.....................................................................................................................11
5. Capacities and selection data ............................................................................................12
5.1 Capacity characteristic charts ..................................................................................12
5.2 Piping length correction factor..................................................................................13
5.3 Correction factors according to defrosting operation ...............................................15
6. Sound pressure data..........................................................................................................16
7. Air flow distribution ............................................................................................................17
8. Refrigerant cycle ................................................................................................................18
9. Wiring diagram ...................................................................................................................20
9.1 Electrical wiring diagrams ........................................................................................20
9.2 Control board picture................................................................................................22
9.3 Common wiring ........................................................................................................25
10. Field setting......................................................................................................................27
10.1 Outdoor unit DIP switch ..........................................................................................27
10.2 Instructions for the function setting of access control, fire protection......................34
11. Piping work and refrigerant charge ..................................................................................36
11.1 MAX. length allowed..............................................................................................36
11.2 Oil trap....................................................................................................................36
11.3 Air tight test.............................................................................................................37
11.4 Additional refrigerant charge ..................................................................................37
12. Installation tools and installation flow chart ......................................................................38
12.1 Necessary tools and instrument list for installation ................................................38
12.2 Installation flow chart..............................................................................................39
13. Control mode....................................................................................................................40
13.1 Indoor unit mode control ........................................................................................40
13.2 Outdoor unit mode control......................................................................................43
14. Sensor parameter ............................................................................................................44
15. Troubleshooting................................................................................................................51
15.1 Trouble guide .........................................................................................................51
15.2 Fault codes............................................................................................................ 53
16. Checking components......................................................................................................61
16.1 Check refrigerant system .......................................................................................61
16.2 Check parts unit .....................................................................................................63
17. Disassembly and assembly .............................................................................................67
18. Control logic description...................................................................................................70
DC-Inverter Air Conditioner Technical

& Service Manual
Table of Contents

1.General
1.1 Features
Floor-standing Type Air Conditioner
Features
24-hour Timer ON and OFF
This Timer can be set to automatically turn the unit
on or off within a 24-hour period.
Mute Operation
The excellent fan design enables the airflow to be
quiet and smooth with minimum noise.
Various Refrigerant Pipe Connecting Methods
The refrigerant pipe can be connected from 3 different
directions (rear,right or left) .
More methods, more conveniently.
Self Recovery of Power Break
When the power supply is recovered after break,
all presets are still effective and the air conditioner can
Fault Self-diagnosis Function
When there is something wrong with the air conditioner，the micro
computer could diagnose the faults, which can be read from the display
and is convenient for maintenance.
1. GENERAL
1
run according to the original setting.

1.2 Product lineup
●---available model
1. GENERAL
42K
48K 60K
Floor standing
●
Model
(Btu/h)
Type
1.3 Nomenclature
48
1.4 Unit installation
1:1 system is the only compatible combination.
(One indoor unit can only be connected with one outdoor unit.)
F T
M
2

1.5 Working range
Power Supply
342V ~ 438V
Operating temperature range
This heat pump air conditioner has been designed for the following outdoor operating temperatures.
Storage condition:
Temperature -20~65℃
Humidity 30%~80%
1. GENERAL
Working Voltage
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
Type Mode Outdoor operating temperature (℃)
maximum minimum
DC-Inverter Split Air
Conditioner
(Heat pump type)
Cooling Operation 48 -15
Heating Operation 24 -15
3

1.6 Product picture
Model
（capacity）48K
Indoor
Unit
Outdoor
Unit
1. GENERAL
4

Display and Button Introduction
42
3 2
1
1. ON/OFF BUTTON
For turning on/off the appliance.
2. TEMPERATURE SETTING BUTTONS
Used to adjust the set temperature.
button is pressed, the temperature can rise by 1℃;
Each time
button is pressed, the temperature can rise by 1℃.
3. MODE BUTTON
For selecting the operation mode.
Each time “MODE” button is pressed, the operation mode is changed in sequence:
4.FAN SPEED BUTTON
For selecting indoor fan speed.
Each time “FAN ”button is pressed, the fan speed is changed in sequence:
It can also be used to unlock the user interface.
The user interface will lock automatically if idle beyond 1 minute, then the user
interface will be locked; Hold the "FAN " button for 3 seconds to unlock; The
remote control is still usable when the user interface has locked.
●Button Operation
HEATING
COOLING
HIGH
AUTO
AUTO
DRY
MEDIUM
FAN ONLY
LOW
“FAN ONLY
“”
AUTO” fan speed is invalid when select“ ”mode.
button is invalid when select “DRY” mode.FAN
Each time
1. GENERAL
5

●Display Introduction
Display and Button Introduction
12
9
34
1 2
7 8 10
5611
1. Auto mode display: Display during auto mode.
2. Cooling mode display: Display during cooling mode.
3. Dry mode display: Display during dry mode.
4. Fan only mode display: Display during fan only mode.
5. Heating mode display: Display during heating mode.
6. Temperature display: Display indoor temperature or indoor set t emperature, default display indoor
set temperature.
7. Heater display: It lights up during heating mode when electric heater is on (Only valid for models
with electric heater).
8. 9. 10. 11. Fan speed set display.
8. Auto fan speed display: It lights up when the appliance is set with auto fan speed.
9. High fan speed display: It lights up when the appliance is set with high fan speed.
10. Medium fan speed display: It lights up when the appliance is set with medium fan speed.
11. Low fan speed display: It lights up when the appliance is set with low fan speed.
12. Signal Receptor.
1. GENERAL
6

2. SPECIFICATIONS
Model AUF-48UR6RTMPA
Indoor model AUF-48UR4RMPA
Outdoor model AUW-48U6RT
Electric
parameter
Power supply Indoor V/ph/Hz 220~240-1-50
Power supply Outdoor V/ph/Hz 380~415-3-50
Input consumption Max. W 6400
Input current Max. A 11.6
Seasonal
efficiency
Cooling
Pdesignc kW 12.3
SEER W/W 6.11
ηs,c 100% 240%
Energy Efficiency
Class - -
Heating
(Average Season)
Pdesignh kW 9.5
SCOP W/W 3.72
ηs,c 100% 146%
Energy Efficiency
Class - -
Tbiv ℃-7
Tol ℃-10
Cooling
Capacity Rated kW 12.3
Range(Min~Max) kW 3.300~13.200
Input Rated kW 4.40
Current Rated A 7.5
EER Rated W/W 2.80
Heating
Capacity Rated kW 14.0
Range(Min~Max) kW 3.000~14.600
Input Rated kW 4.17
Current Rated A 7.3
COP Rated W/W 3.36
Indoor fan
motor
Model - ZW702B500008
Qty - 1
Output W 200
Speed(Hi/Med/Lo) r/min 500/450/410
Indoor coil
Number of rows - 3
Tube pitch(a) x Row pitch(b) mm 21x18.19
Fin spacing mm 1.4
Fin type - Hydrophilic aluminium
Tube outside diameter and type mm Ф7.0, innergroove tube
Coil (Length x Height x Width) mm 480x882x54.57
Number of circuits - 6
Indoor unit
Dimension WxHxD mm 580×1870×380
Packing WxHxD mm 690x2000x480
Weight Net/Gross kg 52/63
Air Volume Hi/Med/Lo m3/h 1750/1500/1300
Hi/Med/Lo CFM 1029/882/765
Sound Level (SPL) Hi/Med/Lo dB(A) 52/46/44
Sound Level
(PWL) Hi dB(A) 64
External Static
Pressure
Rated Pa -
Range Pa -
Controller Type - Remote control
Model - J1-06(E)
Drainage water pipe diameter mm dΦ18
Drain pump - Standard
Air filter - Standard
Qty’per 20’ /40’ /40'HQ - 32/68/85
Design pressure H/L MPa 4.3/1.6
Room
temperature
Setting
Temperature
Range
Cooling ℃-15- 48
Heating ℃-15 - 24
7

2. SPECIFICATIONS
Model AUF-48UR6RTMPA
Indoor model AUF-48UR4RMPA
Outdoor model AUW-48U6RT
Compressor
Model - KTF310D43UMT
Type - ROTARY
Brand - GMCC
Capacity Btu/h 34154
Input W 2765
Rated current (RLA) A 5.38
Refrigerant oil Model - POE VG74
Amount ml 1000
Outdoor fan
motor
Model - SIC-81FW-F1138-1
Qty - 1
Output W 138
Speed r/min 850
Outdoor coil
Number of rows - 2
Tube pitch(a) x Row pitch(b) mm 21x21.65
Fin spacing mm 2
Fin type - Hydrophilic aluminium
Tube outside diameter and type mm Ф7.94, Innergroove tube
Coil (Length x Height x Width) mm 970x1008x43.5
Number of circuits - 6
Outdoor unit
Dimension WxHxD mm 950×1050×340
Packing WxHxD mm 1110×460×1200
Weight Net/Gross kg 85.0/97.0
Air Volume Hi m3/h 5800
Sound Level (SPL) Hi dB(A) 62
Sound Level (PWL) Hi dB(A) 76
Refrigerant
Type - R32
Amount kg 2.50
TCO2Eq - 1.688
GWP - 675
Throttle type - EEV
Qty’per 20’ /40’ /40'HQ - 26/53/106
Design pressure H/L MPa 4.3/1.6
Refrigerant
piping
Liquid/ Gas mm(inch) Φ9.52/Φ19.05
(3/8'/3/4')
Pipe length Max. m 50
Height difference
Max. (OD lower) m 30
Max. (OD
higher) m 30
Add Refrigerant Amount g/m 28
Pipe Length for Additional Refrigerant m 5
Ambient
Temperature
Range
Cooling ℃-15~48
Heating ℃-15~24
NOTE:
1．Test conditions：
Cooling : Indoor: DB27℃/ WB19℃ Outdoor: DB35℃/ WB24℃
Heating: Indoor: DB20℃/ WB15℃ Outdoor: DB7℃/ WB 6℃
2．The sound pressure level is based on the following conditions:
Outdoor unit：
Measure the noise value of 4 points，which are1 meter in front of the four sides of the unit surface and 1/2(unit height +1)
meter high from the floor level, and calculate the weighted average of the noise.
Indoor unit：
Floor standing : Test the noise value of the point 1.0m below the unit and 1.0m in front of the unit.
3. The above data was measured in an anechoic chamber. Please take into consideration the reflected sound of your specific application
environment.
4. All specifications are subjected to change by the manufacturer without prior notice.
8

3. Outlines and dimensions
3.1 Indoor unit
3. OUTLINES AND DIMENSIONS
Unit ： mm
9

3.2 Outdoor unit Unit ： mm
3. OUTLINES AND DIMENSIONS
10

4. Electrical data
ELECTRIC DATA
4.
NOTE:
1. The above compressor data is based on 100% capacity combination of indoor units at the rated
operating frequency.
2. This data is based on the same conditions as the nominal heating and cooling capacities.
3. The compressor is started by an inverter, resulting in extremely low starting current.
Outdoor unit
Power supply Applicable Voltage ELB
Voltage(V) PH
Frequency
(Hz) Umin (V) Umax (V)
Nominal
Current (A)
Nominal
Sensitive
Current
(mA)
48K8K 380-415 3 50 342 438 32 30
11

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:
②Compressor at rated inverter frequency
④Capacity loss due to white frost and defrost operation is not included.
①Pipe length / height difference : 5m / 0m
③Indoor fan speed at high fan speed
COOLING CAPACITY (kW)
HEATING CAPACITY (kW)
(℃ DB) : Dry Bulb Temperature (℃)
(℃ WB) : Wet Bulb Temperature (℃)
(℃ DB) : Dry Bulb Temperature (℃)
(℃ WB) : Wet Bulb Temperature (℃)
Outdoor temperature (℃ DB)
Indoor temperature
(℃ WB) (℃ DB) 20 25 32 35 40 45
14 20 11.1 10.9 10.1 9.9 9.1 8.6
16 22 12.1 11.6 11.4 10.6 9.9 9.4
18 25 12.6 12.1 12.4 11.6 11.1 10.6
19 27 13.3 13.1 12.9 12.3 12.1 11.9
19.5 27 13.9 13.4 13.1 12.9 12.4 12.1
22 30 15.9 14.9 14.4 13.9 13.4 12.6
24 32 17.1 16.6 16.1 15.9 14.9 13.6
Outdoor temperature Indoor temperature (℃ DB)
(℃ WB) (℃ DB) 20 25 27 28 30 31 32
-16 -15 8.7 8.7 8.2 8.2 7.8 7.8 7.8
-11 -10 9.6 9.6 9.2 9.2 8.7 8.7 8.7
-6 -5 11.4 11.4 10.9 10.9 10.9 10.3 10.3
-1 0 13.0 13.0 12.3 12.3 11.8 11.8 11.8
6 7 14.0 14.0 14.0 14.0 14.0 14.0 13.5
10
9 14.9 14.6 14.6 14.6 14.6 14.6 14.4
14 15 15.3 14.9 14.9 14.9 14.9 14.9 14.6
CAPACITIES AND SELECTION DATA
5.
12

5.2 Piping length correction factor
The correction factor is based on the equivalent piping length in meters (EL) and the height difference between the outdoor
and indoor units in meters (H).
H:
Height difference between indoor unit and outdoor unit (m).
• H>0: Position of outdoor unit is higher than position of indoor unit (m).
• H<0: Position of outdoor unit is lower than position of indoor unit (m).
L:
Actual one-way piping length between indoor unit and outdoor unit (m).
EL:
Equivalent one-way piping length between indoor unit and outdoor unit (m).
Cooling ：
48K
5. CAPACITIES AND SELECTION DATA
Gas Diameter
(mm/inch) 9.52 (3/8') 12.7 (1/2') 15.88 (5/8') 19.05 (3/4')
90° Elbow 0.15 0.2 0.25 0.35
EL
Model 5m 10m 15m 20m 25m 30m 35m 40m 45m 50m
1.0 0.95 0.92 0.88 0.87 0.83 0.80 0.78 0.75
0.85
13

The correction factor of height between indoor unit and outdoor unit
To ensure correct unit selection, consider the farthest indoor unit.
1. The data above is given assuming the height difference between the indoor and outdoor units is 0m.
2.
Heating:
Be sure to minimize the length of connection pipes to optimize the performance. If the
outdoor unit is installed higher or lower than the indoor unit, it is necessary to apply height
correction factor additionally to length correction factor to calculate cooling/heating.
If outdoor unit is higher, correction should be applied to cooling capacity, if outdoor unit is
lower, correction should be applied to heating capacity.
NOTE
5. CAPACITIES AND SELECTION DATA
48K
EL
Model 5m 10m 15m 20m 25m 30m 35m 40m 45m 50m
1.0 0.94 0.91 0.88 0.85 0.79 0.76 0.73 0.70
0.82
Height difference 5m 10m 30m
Factor 0.01 0.02 0.025
14

5.3 Correction factors according to defrosting operation
Correcteed heating ccapacity = DDefrost Correection factorr x unit capacity
The heating capacity in the previous paragraph is given without consideration of the condition of
defrosting operation period. In consideration of defrosting operation, the heating capacity is corrected
with the equation below.
5. CAPACITIES AND SELECTION DATA
15

6. Sound pressure data
Indoor unit
Outdoor unit
Model 48K
Test condition 1.0m ahead of the unit; 1.025m high from the bottom of the unit;
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
NC-70
10
20
30
40
50
60
70
80
90
63 125 250 500 1k 2k 4k 8k
Total octave band sound level (dB:total sound level C)
Octave band center frequency(Hz)
Model 48K
Test condition 1.0m under the unit; 1.0m high from the ground;
0
10
20
30
40
50
60
70
80
90
63 125 250 500 1k 2k 4k 8k
Total octave band sound level(dB:total sound level C)
Octave band center frequency(Hz)
NC-65
NC-70
NC-60
NC-50
NC-55
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
Lo
Me Hi
6.SOUND PRESSURE DATA
16

Air flow distribution
Floor-standing installation/Cooling/Air Velocity Distribution
Floor-standing installation/Cooling/Air Temperature Distribution
7. AIR FLOW DISTRIBUTION
7.
1)
2)
17

8. Refrigerant cycle
Indoor Unit
2
1
1
35
4
Cooling Cycle
Heating cycle
List of components
1 Hexagon nut 4 Ambient temperature sensor
2 Split capillary 5 Coil temperature sensor
3 Indoor heat exchanger
8. REFRIGERANT CYCLE
18