Gree GMV-PD100W/NAB-K User manual

DC INVERTER MULTI VRF
SERVICE MANUAL
T1/R410A/50Hz
(GC201112)
CENTRAL AIR CONDITIONERS

PRODUCT .....................................................................................................2
1 MODELS LIST .......................................................................................................... 2
2 NOMENCLATURE .................................................................................................... 2
3 FUNCTION ............................................................................................................... 3
4 PRODUCT DATA ...................................................................................................... 4
4.1 Product Data ................................................................................................................................4
4.2 Operation Range...........................................................................................................................6
5 PIPING DIAGRAM .................................................................................................... 6
5.1 Heat Pump ...................................................................................................................................6
CONTROL .....................................................................................................8
1 OPERATION FLOWCHART ...................................................................................... 8
2 MAIN LOGIC.............................................................................................................11
2.1 Control Function of Outdoor Unit ................................................................................................ 11
3 WIREDLESS REMOTE CONTROLLER.................................................................. 15
3.1 Wiredless Remote Controller Y512.............................................................................................15
3.2 Wireless Remote Controller YB1FA (optional) ............................................................................16
4 WIRED REMOTE CONTROLLER ........................................................................... 17
4.1 Wired Controller Z60351F,Z60151F,Z63351F,Z63151F..............................................................17
4.2 Wired Controller XK02 ...............................................................................................................19
5 REGIONAL CONTROLLER ..................................................................................... 23
5.1 Function ......................................................................................................................................23
5.2 Operation View............................................................................................................................24
5.3 Display View................................................................................................................................25
5.4 Connection Between Controller and Unit ...................................................................................26
6 SMART ZONE CONTROLLER................................................................................ 27
6.1 Function ......................................................................................................................................27
6.2 Operation View ...........................................................................................................................27
6.3 Display View...............................................................................................................................28
6.4 Network Topological Diagram......................................................................................................29
6.5 Installation and Debugging..........................................................................................................30
6.6 Attachment ..................................................................................................................................34
7 CENTRALIZED CONTROLLER ............................................................................. 35
7.1 Central Control ZJ7011 ...............................................................................................................35
7.2 Centralized Controller CE51-24/E(M) .........................................................................................38
8 MONITORING SOFTWARE .................................................................................... 48
8.1 Function .....................................................................................................................................48
8.2 Connection Between the Computer and the Unit .......................................................................48
8.3 Hardware ....................................................................................................................................50
9 DETECTION CONTROL BOARD............................................................................ 55
9.1 Gate-control Function .................................................................................................................55
CONTENTS

9.2 Working Process of Gate Control ...............................................................................................55
9.3 Detection Control Board Interface Sketch is shown in Fig.2: ......................................................56
9.4 Products Parameters .................................................................................................................56
9.5 Installation of Detection Control Board .......................................................................................56
INSTALLATION ........................................................................................... 59
1 PRECAUTIONS FOR INSTALLATION ................................................................... 59
1.1 Precautions for installation ..........................................................................................................59
1.2 Key Points of Installation.............................................................................................................60
2 FLOW CHART OF INSTALLATION ......................................................................... 62
3 INSTALLATION OF OUTDOOR UNIT .................................................................... 63
3.1 Cautions for installation of side discharge outdoor unit...............................................................63
3.2 Selection of Installation Site .......................................................................................................63
3.3 Dimensions Data.........................................................................................................................64
3.4 Installation space requirements ..................................................................................................64
4 INSTALLATION REQUIREMENTS OF REFRIGERANT PIPING ............................ 65
6SHFL¿FDWLRQRIUHIULJHUDQWSLSH...................................................................................................65
4.2 Allowable Length and Height Differences of the Refrigerant Piping between the Indoor and
Outdoor Units ...................................................................................................................................65
4.3 Size of Connection Pipe..............................................................................................................65
5 INSTALLATION OF REFRIGERANT PIPING ......................................................... 66
5.1 Flow Chart of Installation ............................................................................................................66
5.2 Three Principles of Refrigerant Piping Installation .....................................................................67
5.3 Installation of Metal Embedded Pipe...........................................................................................67
5.4 Installation of Carriage of Refrigerant pipin ................................................................................67
5.5 Management and Machining of Refrigerant Piping .....................................................................68
5.6 Installation of Refrigerant Piping .................................................................................................72
5.7 Welding of Copper Pipe ..............................................................................................................74
5.8 Cleaning of Refrigerant Piping ...................................................................................................78
5.9 Pressure Maintaining and Leak Hunting ....................................................................................79
5.10 Heat Preservation of Refrigerant Piping ...................................................................................80
5.11 Vacuum Pumping .....................................................................................................................81
5.12 Refrigerant Charge ...................................................................................................................82
6 INSTALLATION OF CONDENSATE PIPE .............................................................. 83
6.1Material Quality Requirements for Condensate Pipe ...................................................................83
6.2 Key Points for Condensate Pipe Installation ...............................................................................83
6.3 Test for Condensate Pipe............................................................................................................87
6.4 Requirements of Heat preservation ...........................................................................................87
7 ELECTRICAL INSTALLATION................................................................................. 88
7.1 Precautions for Electrical Installation ..........................................................................................88
6SHFL¿FDWLRQVRISRZHUFRUGFLUFXLWEUHDNHU ...........................................................................88
7.3 Wiring Sketch Map .....................................................................................................................89
7.4 Dial-up.........................................................................................................................................89
MAINTENANCE...........................................................................................96
1 List of Unit Errors ..................................................................................................... 96

1.1 List of Error Display on Wired Controller.....................................................................................96
1.2 Display Code on Digital Tube of Outdoor Mainboard..................................................................97
2 FLOW CHART OF TROUBLESHOOTING ............................................................. 98
2.1 High-pressure Protection ............................................................................................................98
2.2 Low-pressure Protection .............................................................................................................99
2.3 Exhaust Temperature Protection...............................................................................................100
2.4 Compressor overcurrent protection...........................................................................................101
2.5 Communication error.................................................................................................................103
2.6 Water-full protection ..................................................................................................................104
2.7 Error with room sensor, tube-inlet, tube middle and tube-exit sensor; error with room sensor,
tube-inlet, tube middle and tube-exit sensor and exhaust / casing top sensor; error with the
compressor bottom sensor..............................................................................................................104
2.8 No energization to the unit and mainboard ...............................................................................105
2.9 PFC Protection..........................................................................................................................106
2.10 IPM Protecion..........................................................................................................................107
2.11 Trip...........................................................................................................................................108
2.12 Superheat Protection of Radiator............................................................................................109
2.13 DC Overvoltage Protection .................................................................................................... 110
3 POWER DISTRIBUTION ........................................................................................111
3.1 Diagram of Power Distribution .................................................................................................. 111
3.2 Introduction of Major Electrical Elements.................................................................................. 111
3.3 Wiring diadram .......................................................................................................................... 113
4 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS ......................115
5 EXPLODED VIEWS AND PART LIST.................................................................... 124

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DC Inverter Multi
VRF Service Manual
PRODUCT
QSPEVDU

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DC Inverter Multi
VRF Service Manual
QSPEVDU
PRODUCT
1 MODELS LIST
Units
Series Model Product Code
Capacity
Power
Supply Appearance
Cooling
(Btu/h)
Heating
(Btu/h)
DC Inverter
Multi VRF
GMV-Pd100W/NaB-K CN850W0072 34120 37532 220-240V~50Hz
GMV-Pd120W/NaB-K CN850W0012 40944 47768 220-240V~50Hz
GMV-Pd140W/NaB-K CN850W0022 47768 52545 220-240V~50Hz
GMV-Pd160W/NaB-K CN850W0032 54592 60051 220-240V~50Hz
GMV-Pd140W/NaB-M CN850W0150 47768 52545 380-415V
3N~,50Hz
GMV-Pd160W/NaB-M CN850W0140 54592 60051 380-415V
3N~,50Hz
2 NOMENCLATURE
GMV ƑL - Pd 120 W / Na B - K
1 23 456 78 9
NO. Description Options
1 Code for type GMV=Gree Multi Variable
2 Code for weather Default:T1 T2:T2 weather T3:T3 weather
3 Code for model L: Cooling Only
Default: Heat pump
4 Units Series Pd: DC inverter VRF
5 Nominal cooling capacity 120 represents 12kW
Btu/h=kW×3412
6 W: outdoor unit
7 Refrigerant Na: R410A
8 Series number B: The second generation
9 Power supply K: 220-240V 50Hz
M:380-415V 3N~,50Hz

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DC Inverter Multi
VRF Service Manual
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3 FUNCTION
For
Comfortable
Air Conditioning
Auto Restart
Fan Operation Mode
LCD Remote Controller (Option)
Auto Swing Function
Ceiling Soiling Prevention
Program Dry
High Fan Speed Mode
High Ceiling Application
Two Select Thermo Sensor
Hot Start
Timer Selector
For Easy Construction
and Maintenance
Fresh Return air inlet Directly from The Unit
Drain Pump
Long Life Filter
Ultra-Long life Filter (Option)
Mold Resistant Treatment for Filter
Filter Sign
Mold Resistant Drain Pan
Emergency Operation
Self Diagnoses Function
For Flexible
Control
Set Back Time Clock
Double Remote Control
Group Control By 1 Remote Controller
Control By External Command
Remote/Centralized Control

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DC Inverter Multi
VRF Service Manual
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4 PRODUCT DATA
4.1 Product Data
Model GMV-Pd100W/NaB-K GMV-Pd120W/NaB-K GMV-Pd140W/NaB-K GMV-Pd160W/NaB-K
Product Code CN850W0072 CN850W0012 CN850W0022 CN850W0032
Capacity
CoolingakW 10 12 14 16
kBtu/h 34 41 48 55
HeatingbkW 11 14 15.4 17.6
kBtu/h 38 48 53 60
Sound Pressure Level dB(A) 58 58 58 60
Refrigerant R410A R410A R410A R410A
Refrigerant Filling Amount kg 7.5 7.5 7.5 7.5
Power Supply V/Hz/Ph 220-240/50/1 220-240/50/1 220-240/50/1 220-240/50/1
Power input Cooling kW 2.86 3.5 4.36 4.98
Heating kW 2.6 3.4 4.05 4.85
Current Cooling A 14.20 17.30 20.50 23.20
Heating A 13.20 16.40 19.60 21.90
Circuit breaker A 40 40 40 40
Recommended Power Lines mm2×N 4×3 4×3 6×3 6×3
Compressor type DC inverter dual-
rotor type
DC inverter dual-
rotor type
DC inverter dual-
rotor type
DC inverter dual-
rotor type
Moisture protection IP24 IP24 IP24 IP24
Climate Type T1 T1 T1 T1
Connection
Pipes
High pressure
Gas Pipe mm////
High pressure
Gas Pipe Inch / / / /
Low pressure
Gas Pipe mm////
Low pressure
Gas Pipe Inch / / / /
Liquid Pipe mm ĭ ĭ ĭ ĭ
Inch 3/8 3/8 3/8 3/8
Connection Method Flare Connection Flare Connection Flare Connection Flare Connection
Dimensions
of Unit
Width mm 950 950 950 950
Depth mm 340 340 340 340
Height mm 1250 1250 1250 1250
Dimensions
of Package
Width mm 1110 1110 1110 1110
Depth mm 450 450 450 450
Height mm 1280 1280 1280 1280
Net Weight kg 111 111 111 115
Gross Weight kg 122 122 122 122
Loading Quantity
( 20’ Container ) aunit 26 26 26 26
Loading Quantity
( 40’ Container )bunit 54 54 54 54
Loading Quantity ( 40’ High
Cube Container )cunit 54 54 54 54

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DC Inverter Multi
VRF Service Manual
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Model GMV-Pd140W/NaB-M GMV-Pd160W/NaB-M
Product Code CN850W0150 CN850W0140
Capacity
CoolingakW 14 16
kBtu/h 48 55
HeatingbkW 15.4 17.6
kBtu/h 53 60
Sound Pressure Level dB(A) 58 60
Refrigerant R410A R410A
Refrigerant Filling Amount kg 7.0 7.0
Power Supply V/Hz/Ph 380-415/50/3 380-415/50/3
Power input Cooling kW 4.5 5.1
Heating kW 4.3 4.8
Current Cooling A 8.0 9.1
Heating A 7.7 8.6
Circuit breaker A 20 20
Recommended Power Lines mm2×N 1.5×5 1.5×5
Compressor type DC inverter dual-rotor type DC inverter dual-rotor type
Moisture protection IP24 IP24
Climate Type T1 T1
Connection
Pipes
Gas Pipe mm ĭ ĭ
Inch 5/8 3/4
Liquid Pipe mm ĭ ĭ
Inch 3/8 3/8
Connection Method Flare Connection Flare Connection
Dimensions
of Unit
Width mm 950 950
Depth mm 340 340
Height mm 1250 1250
Dimensions
of Package
Width mm 1110 1110
Depth mm 450 450
Height mm 1280 1280
Net Weight kg 115 115
Gross Weight kg 122 122
Loading Quantity
( 20’ Container ) aunit 26 26
Loading Quantity
( 40’ Container )bunit 54 54
Loading Quantity ( 40’ High
Cube Container )cunit 54 54
Notes:
ķ
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ĸ
The model with GMV code is heat pump unit;
Ĺ
The sound level was tested under circumstance of semi-anechoic chamber; the value of noise could
be a little higher in actual operation.

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DC Inverter Multi
VRF Service Manual
QSPEVDU
4.2 Operation Range
Model Range of outdoor temperature ( )
Cooling 10 (50 )~48 (118.4 )
Heating -20 (-4 )~27 (8 )
5 PIPING DIAGRAM
5.1 Heat Pump
Filter
Electronic expansion valve
Capillary
Electronic expansion valve
Heat exchanger with centrifugal fan
Indoor side
Stop valve
cooling
heating
Compressor
1-
way valve
Outdoor side
Oil separator
Capillary
Electricmagnetic valve
4-
way valve
Filter
M
Extra condenser
Heat exchanger
with axial flow fan
Heat exchanger with centrifugal fan
Electronic expansion valve
Accumulator
Receiver

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DC Inverter Multi
VRF Service Manual
CONTROL
DPOUSPM

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DC Inverter Multi
VRF Service Manual
DPOUSPM
CONTROL
1 OPERATION FLOWCHART
Volume:Air Supply Direction
Start Indicating Light OFF
Stop
Yes
Start
No
No
Temperature
Adjustment
Air Supply
Coolin gH eating
A
Yes
Conne cting To Power Suppl y
Initialization Of Bectronic
Expansion Valve
Start Indicating Light Is ON
Start/Stop
Is The Protecting
Is The Start Indi cating
Display The Last Setting s Of Air
Start Display:Flickering
Abno rmality Code Display
Press The Start / Stop Switch
Start Indicating Light ON
Air Volume Setting Display
Displaying
Air Supply Direction Setting
Display Displaying
Temperature Setting Display
Displaying
Start Display : OFF
Abnor mal Mode Display
Air Supply Or Temperature
Cooling Or Heatig?
Cooling Operation Heating Operation
Air Supply Operation
Air Supply Blower : Stop
Electronic Expansion
Guide Louve r : Stop

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DC Inverter Multi
VRF Service Manual
DPOUSPM
Cooling Operation
A
There Is Not
There Is
Yes
No
Temperature
Adjustment?
In The Process Of
Preventing Restart Operation?
(3 Minut es)
Guide Louv er
Cooling Operation
Guide Louv ers Swing
Fan Moto r :Operation
Electronic Expansion
Valve Capacity Control
Fan Motor : Stop
Electronic Expansion
Valve : Close

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DC Inverter Multi
VRF Service Manual
DPOUSPM
Heating Operation
There Is Not
There Is
Guide Louv er
Heating Operation
Guide Louv ers Swing
In The Process Of
Preventing Restart Operation?
(3 Minut es)
In The Operation
Of Defrosting ?
Temperature
Adjustment ?
Fan Motor :
As Per Set Air Supply
Speed
In The Process O f
Preventing Cold Air?
Electronic Expansion
Valve : Capacity C ontrol
Fan Motor : Stop
Fan Motor : Stop
Electronic
Expansion Valve :Close
Fan Motor : Stop
Electronic
Expansion Valve :Close
Defrosting Control
Yes
Yes
Yes
Yes
No
No
No
No
A

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DC Inverter Multi
VRF Service Manual
DPOUSPM
2 MAIN LOGIC
2.1 Control Function of Outdoor Unit
1) Compressor Capacity Output
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The compressor capacity output is calculated according to the required indoor load, which is related to the
following factors: whether the indoor unit is started, the set temperature, the indoor ambient temperature, the
outdoor ambient temperature, etc.
Calculation of capacity output of cooling compressor
%100
)(
1
1
u
¦
¦
j
i
i
i
j
i
iON
q
Aq
Q
Calculation of capacity output of heating compressor
%100
)(
1
1
u
u
¦
¦
j
i
i
iiOFFi
j
i
iON
q
BqAq
Q
For inverter compressor
f=max
F
xQ,and when fis not 0, the minimum is min
F, the maximum is max
F
Among which:
Qis the calculated compressor capacity output;
fActual run frequency of inverter compressor;
max
FMaximum allowable run frequency of inverter compressor;
min
FMinimum allowable run frequency of inverter compressor
i
qRated capacity of indoor unit
iON
qRated capacity of indoor unit in ON state
i
ARated capacity of indoor unit in OFF state
i
A
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i
B
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2) Compressor Start Control
The shortest operating time of the compressor is 6 minutes. But when the switching-off signal or the
protection signal is received, the compressor must stop even if the operation of it has not lasted for 6 minutes.
The shortest stoppage period of the compressor is 3 minutes. The compressor must not be started at
any time within 3 minutes after the compressor is stopped.
If the capacity demand of each indoor unit is 0 when the whole unit group is under heating state, the
compressor must be stopped (if under the heating operation alone the temperature of stop control is reached,
the compressor must be stopped).
Initial Sequence Chart of Cooling/Dry Modes:
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5min and 5min when the frequency passed 60Hz, 75Hz and 90Hz. If high-pressure frequency-reducing and
exhausting frequency-reducing happens during the process, you should quit the initial action, and deal with
according to their separate frequency-reducing.

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DC Inverter Multi
VRF Service Manual
DPOUSPM
Adjust according to normal logic
60Hz/3min 75Hz/5min 90Hz/
5min
Target frequency
Stop of frequency
initialization
Conversion controller
4-way valve
Fan
If it is in heating position, cut off the power of 4-way valve for cooling.
ODU EXV
IDU EXV 0 Step
Initializat XX
Step
480 Step
180 s
Initial Sequence Chart of Heating Mode:
%HIRUHWKH¿UVWVWDUWLQJRIFRPSUHVVRU\RXVKRXOGNHHSLWUXQQLQJIRUPLQDW+]DQGWKHQVZLWFKWRWKH
target frequency. The dwell time is separately 5min and 5 min when the frequency passes 75 Hz and 90 Hz. If
high-pressure frequency-reducing and exhausting frequency-reducing happens during the process, you should
quit the initial action, and deal with according to their separate frequency-reducing.
60Hz/3min 75Hz/5min 90Hz/5min Target frequency
Stop of frequency
initialization
Conversion controller
4-way valve
Fan
ODU EXV
IDU EXV 0 Step
180 s
Initialization
250 step
Initialization
300 step
When the high and low pressure is higher than or equal to 3kg/cm2G,
energize the 4-way valve
Adjust according to normal logic
120 s
3) Outdoor fan control
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speed: the upper and lower fans are both at medium speed; Medium fan speed: the upper and lower fan are
both at low speed; Low fan speed: the upper fan is at low speed, the lower fan stops; Stop fan speed: both the
upper and lower fans stop.
Cooling Mode:
The fan could be switched among ultra-high - high - medium - low fan speed.
The compressor should be forced to run at high fan speed for 35 seconds before started. After the
compressor started, you should not stop it within 3 minutes, but you could regulate it up to ultra-high fan speed.
The discharge pressure should be measured 3 minutes later, and you can regulate the fans’ speed according to
the following discharge pressure:

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DC Inverter Multi
VRF Service Manual
DPOUSPM
Absolute pressure
value for discharge( )P30 30 P 42 42 P 49 P 49
Cooling Shutdown the
fan forcibly
Turn down one grade (not
including stopping windshield ) Remain Turn up one grade
For ultra-high fan speed, you couldn’t turn up the grade anymore;
Heating Mode:
The fan should run at high fan speed for 35s before the compressor is started, meanwhile, it is not
allowed to turn up to ultra-high fan speed within the earlier 3 minutes after the compressor started, but it could
be switched to low speed and stopping fan. You could turn up to the highest level ultra-high fan speed after 3
minutes.
Pressure section:
Absolute pressure value
for discharge( )P37 37 P 48 3
Heating Turn up one grade Remain Turn down one grade
4) Defrosting Function
Defrosting Start Conditions
Keep heating (the four-way valve is under the heating position) for 50 minutes; when the intermediate
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Temperature of Mid. Temp. sensor
Outdoor Dry-bulb Temperature
-10
-15
-10
-5
0
-5 0 5 10
Or the outdoor ambient temperature is below -6 ; and keeps heating (the four-way valve is under the
heating position) for 2 hours;
Defrosting Stop Conditions:
Outdoor coil pipe temperature is higher than 15 or the defrosting is running for 10 minutes continuously.
Defrosting Movements:
The defrosting is made by switching four-way valve to cooling mode.

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DC Inverter Multi
VRF Service Manual
DPOUSPM
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Timing diagram of the defrosting process
Defrosting
preparation
Defrosting
process
Defrosting
termination
Compressor
frequency
4-way valve
Outdoor fan
Electronic
expansion valve
Inside electronic
expansion valve
Indoor fan
Gas by-pass
fx
Px
Px
40HZ
40HZ
70HZ
ON
OFF
ON
ON
OFF
High fan
speed
580P
300P
OFF OFF OFF
ON ON
ON
OFF
ON
200P
250P
30s 2min
4min
Defrosting sign
Heating time
marker
Defrosting time
marker
ON ON
0
1
0
ON
OFF
OFF OFF
T=<10min
Anti-cold air
Defrosting Process Sequence Chart
60HZ
2min
50HZ
60HZ
1min 1min
30s

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DC Inverter Multi
VRF Service Manual
DPOUSPM
3 WIREDLESS REMOTE CONTROLLER
This service manual contain two wireless remote controllers Y512 and YB1FA. Y512 is applicable to all
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standing type.
3.1 Wiredless Remote Controller Y512
Operation procedure
Normal procedure
1) Press the ON/OFF button after the unit is energized, then the unit starts operating.
2) Press MODE button to choose the desired operation mode.
3) Press FAN button to set the fan speed.
4) Press +/- button to set the desired temp.
Selectable procedure
5) Press SLEEP mode to set the sleep state.
6) Press TIMER OFF button to set the time.
NOTE!
After every indoor unit receives the TURN-OFF signal, the fan and electric expansion valve will continue
to work for 20-70 seconds to make use of the rest cool or rest heat, preparing for the next operation, which is
a normal phenomenon.

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DC Inverter Multi
VRF Service Manual
DPOUSPM
3.2 Wireless Remote Controller YB1FA (optional)
Operation Mode Display
(AUTO,COOL,DRY,FAN,HEAT)
Sleep Mode Display
Temperature Type Display