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Air-cooled Inverter Product Range
Updated by:Yap Boon ThiamTechnical EngineerEmail: [email protected]: 14/5/2012
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Inverter Product Range
Contents:1. Product Range:
Single Split Inverter (Series I) Single Split Inverter (Series II) Multi Split Inverter
2. Inverter Control
3. Troubleshooting Guidelines
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Inverter Product Range
Single Split Inverter Series I
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Inverter Product Range
Single split Inverter Series I – A5LCY
Outdoor Indoor 10 15 20 25
A5LCY-CR
A5WMY-JR ○ ○ ● ●
A5WMY-LR ○ ○ ● ●
A5CKY-CR ○ ○ ● ○
A5CKY-ER ○ ○ ● ●
A5CMY-ER ○ ○ ● ●
A5CCY-CR ○ ○ ● ●
A5LCY-DR
A5WMY-JR ● ● ○ ○
A5CKY-CR ● ● ○ ○
A5CMY-ER ○ ● ○ ○
A5CCY-CR ● ● ○ ○
A5LCY-FR A5WMY-LR ● ● ○ ○
5WMY-JR
5CKY-ER
5CMY-ER
5CCY-CR
5WMY-LR
● Available
○ Not Available
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Inverter Product Range
Wall Mounted – A5WMY
A5WMY10/15JR A5WMY10/15LR
Vs
Item A5WMY-JR A5LCY-DR
A5WMY-LRA5LCY-FR
Cost Standard Cost effective
Compressor Rotary Hermetic swing
Weight 31 27
OD Dimension (HxWxD)
550x765x293 550x658x289
Outdoor fan speeds
6 2
Lowest ambient Cooling/Heating
-10/-15 10/-15
New
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Inverter Product Range
A5WMY-Features
High EER/COP performance.
ALL Models rank A/A or Exceeds!
High Quality & Efficiency DC Inverter compressor
5WMY JR Series LR Series
(W/W) EER COP EER COP
10 3.42 3.62 3.49 4.06
15 3.33 3.62 3.33 3.76
20 3.73 3.75 - -
25 3.30 3.74 - -
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Inverter Product Range
A5WMY-Features
BioPro IAQ.Protection 1Bio Antibody Filter-Able to eliminate up to 99.99% of various airborne infectious viruses-Deactivates influenza virus
Protection 2Titanium Apatite Filter-Dissolves odors and harmful airborne particles like dust, bacteria-Enhance photo catalytic capability
Note: Standard for LR series and Optional for JR series
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Inverter Product Range
A5WMY-Features
New Remote Control Turbo Mode- Fast cooling Quiet Mode
Error code diagnosis
ModelSound Pressure
(dBA)
5WMY10LR 21
5WMY15LR 22
GS02
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Inverter Product Range
A5LCY Series 1- Specification
Maximum piping length and elevation
ModelMax. total
piping length
(m)
Max. height difference
(m)
Pre-charge for up to piping length (m)
Additional charge
(g/m)
A5LCY10DR 15 10 7.5 20
A5LCY15DR 15 10 7.5 20
A5LCY10FR 20 10 7.5 20
A5LCY15FR 20 10 7.5 20
A5LCY20CR 30 10 7.5 20
A5LCY25CR 30 10 7.5 20
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Inverter Product Range
A5LCY Series I- Features
A5LCY-DR A5LCX-CR
Outdoor Control Box Made of plastic material More compact and lighter
New
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Inverter Product Range
A5LCY Series I- Features
Ease for Servicing Equipped with 7 segment display Able to retrieve error code and running parameter
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Inverter Product Range
A5LCY Series I- Features
A5LCY-Series I A5LCX-Series I
Outdoor coil Outdoor coil
Discharge pipe Discharge pipe
Outdoor ambient Outdoor ambient
Heat sink -
Heat sink thermistor to detect heat sink temperature
New
Thermistor
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Inverter Product Range
Single Split Inverter Series II
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Inverter Product Range
Single split Inverter Series II – A5LCY
● A5CMY62CR
●* A5CCY38CR
5CKY-ER
5CMY-ER
5CCY-CR
Outdoor Indoor 40 50 60
A5LCY-FRAvailable in
1Ø & 3Ø
A5CKY-ER ● ● ○
A5CMY-CR ○ ○ ●
A5CMY-ER ● ● ○
A5CCY-CR ●* ● ●
Outdoor Indoor
A5LCY28CR
A5CKY28ER
A5CMY28ER
A5CCY28CR
● Available
○ Not Available
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Improve sound level Equipped with a newly-developed turbo fan
4 selected fan speeds inclusive of Quiet mode
Inverter Product Range
Ceiling Cassette – A5CKY-ER Features
Sound Pressure Level (dBA) comparison
A5CKY-AR High Fan A5CKY-ER High Fan Silent Mode
20 42 20 34 27
25 45 25 37 30
28 49 30 41 32
40 51 40 44 36
50 53 50 47 41
Improved!
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Optimum air discharge
Multi comfort 3 air swing pattern
Inverter Product Range
Ceiling Cassette – A5CKY-ER Features
CK-A CK-E
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Modern and Elegant design Unique “Round” side contour Side LED light location Even air distribution Rotatable intake grill
Inverter Product Range
Ceiling Cassette – A5CKY-ER Features
Allow 90°RotationAllow 90°Rotation
A5CKY-ER
A5CKY-AR
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Compact Body Design
Inverter Product Range
Ceiling Cassette – A5CKY-ER Features
A B C
A5CKY20-50AR350mm
A5CKY20-28ER290mmA5CKY40-50ER325mm
Lower Height!
Model Dimension (mm)
A5CKY-ER A B C
20/25/28 265 290 340
40/50 300 325 275
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Built in high head drain pump 700mm drain head Water level switch is incorporated with drain pump to monitor its
water level
Inverter Product Range
Ceiling Cassette – A5CKY-ER Features
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Automatic air swing The motorized louver enables the air flow to be evenly distributed
Inverter Product Range
Ceiling Convertible– A5CMY Features
Maximum piping length and elevation
ModelMax. total
piping length(m)
Max. height difference
(m)
Pre-charge for up to piping length (m)
Additional charge(g/m)
A5LCY28CR 50 30 30 50
A5LCY40FR 75 30 30 50
A5LCY50FR 75 30 30 50
A5LCY60FR 75 30 30 50
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Optional drain pump Flexible installation at side 700mm drain head
Inverter Product Range
Ceiling Convertible– A5CMY Features
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Inverter Product Range
LED Indicator- A5LCY28CR
GreenA 1 2 3 4◑ ● ● ● ● 00 NORMAL
UA INSTALLATION ERROR
UH ANTIFREEZE (OTHER ROOMS)
◑ ● ● ● ○ L4 HEAT SINK OVERHEAT
◑ ● ● ○ ● L5 IPM ERROR / IGBT ERROR
◑ ● ● ○ ○ U0 INSUFFICIENT GAS
◑ ● ○ ● ○ E8 AC INPUT OVER CURRENT
◑ ● ○ ○ ● E6 COMPRESSOR START-UP ERROR
◑ ● ○ ○ ○ U7 COMMUNICATION ERROR (OUTDOOR CONTROL PCB AND IPM PCB)
◑ ○ ● ● ● EA 4 WAY VALVE ERROR
◑ ○ ● ● ○ U2 DC VOLTAGE OUT OF RANGE
◑ ○ ● ○ ● E5 COMPRESSOR MOTOR LOCK / COMPRESSOR OVERLOADED
◑ ○ ● ○ ● F3 DISCHARGE PIPE OVERHEAT
◑ ○ ● ○ ○ A5 ANTIFREEZE (COOLING)
F6 HEAT EXCHANGER OVERHEAT
◑ ○ ○ ● ● H0 COMPRESSOR SENSOR SYSTEM ERROR
H6 COMPRESSOR FEEDBACK DETECTION ERROR
H8 AC CURRENT SENSOR ERROR
H9 OUTDOOR AIR THERMISTOR SHORT/OPEN
J3 COMPRESSOR DISCHARGE PIPE THERMISTOR SHORT / OPEN / MISPLACED
J6 OUTDOOR HEAT EXCHANGER THERMISTOR SHORT/ OPEN
J8 LIQUID PIPE THERMISTOR SHORT/ OPEN
J9 GAS PIPE THERMISTOR SHORT/OPEN
P4 HEAT SINK THERMISTOR SHORT / OPEN
◑ ○ ○ ● ○ L3 OUTDOOR CONTROL BOX OVERHEAT
◑ ○ ○ ○ ● E1 OUTDOOR PCB ERROR
◑ ○ ○ ○ ○ E7 OUTDOOR DC FAN MOTOR LOCK
DescriptionRedLED INDICATION
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Inverter Product Range
LED Indicator- A5LCY40/50/60FR
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Inverter Product Range
Multi Split Inverter
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Inverter Product Range
Multi-split Inverter – A5MSYOutdoor
Indoor Combination
1x 2x 3x 4x
A5MSY18BR(1 to 2)
10 10+10 - -
15 10+15 - -
A5MSY20BR(1 to 2)
10 10+10 - -
15 10+15 - -
20 10+20 - -
- 15+15 - -
- 15+20 - -
A5MSY25BR(1 to 3)
10 10+10 10+10+10 -
15 10+15 10+10+15 -
20 10+20 10+10+20 -
- 15+15 10+15+15 -
- 15+20 10+15+20 -
- 20+20 15+15+15 -
A5MSY30BR(1 to 4)
10 10+10 10+10+10 10+10+10+10
15 10+15 10+10+15 10+10+10+15
20 10+20 10+10+20 -
- 15+15 10+15+15 -
- 15+20 10+15+20 -
- 20+20 15+15+15 -
5WMY10/15/20JR
5CMY15/20ER
5CKY10/15/20CR
5WMY10/15LR
5CCY10/15/20CR
5CKY20ER
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Inverter Product Range
A5MSY18BR
Focus on residential market with 1 Bedroom + 1 Living Room More compact design and cost effective
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Inverter Product Range
A5MSY- Specification Maximum piping length and elevation
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Inverter Product Range
A5MSY- Features
Better Energy Saving Achieve class A/A based on European Energy Efficiency
Class ratings
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Inverter Product Range
A5MSY- Features
A5MSY-BR A5MSX-AR
Outdoor Control Box Made of plastic material More compact and lighter
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Inverter Product Range
A5MSY- Features
LED light error indicator (self error diagnosis)
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Inverter Product Range
A5MSY - Features
A5MSY-BR A5MSX-AR
Outdoor coil Outdoor coil
Discharge pipe Discharge pipe
Outdoor air Outdoor air
Gas pipe x no. of indoor unit Gas pipe x 1
Liquid pipe x no. of indoor unit Liquid pipe x 1
Heat sink -
New
More feedback (Thermistors) Outdoor unit has more feedbacks
New
New
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Inverter Product Range
A5MSY- Features Outdoor Fan Motor
Compressor and Expansion Device Has a higher EER, lower vibration & noise and higher durability
A5MSY-BR A5MSX-AR
Fan motor type Reluctance DC 3 Speeds AC
Lowest Operating Ambient
Cooling/Heating ( JC)0 / -16 19 / -9
A5MSY-BR A5MSX-AR
Compressor Swing type Scroll type
Expansion device EXV EXV
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Inverter Product Range
A5MSY - Features
Wiring Error Check Self corrected wiring connection just pressing a button (SW3)
After self-correction, OD will change the address in memory so that EXV A is link to Port B.
Note: Wire check correction need to be carried out again if wiring is changed or corrected
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Inverter Product Range
A5MSY - Features Priority Room Setting
Allow user to set a particular room which takes precedence over the operation mode of other rooms
For example, if Room A is the priority room, when COOL mode is selected in Room A while Room B, C & D are operating in the following mode:
Operation mode in Room B, C & D
Status for Room B, C & D
COOL or DRY or FAN Current operation mode is maintained
HEATThe unit enters Standby Mode. Operation resumes when Room A unit stops operating.
AUTO
If the unit is set to COOL mode, operation continues.
If set to HEAT mode, it enters Standby Mode.
Operation resumes when Room A unit stops operating.
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Inverter Product Range
A5MSY – Literatures
GS02 Handset Operating Manual
Manuals
Brochure
Installation Manual
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Inverter Products
Control
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Inverter Product Range
There are 5 operating modes:i. Cool mode
When Tr ≥ Ts - 1.5°C -Comp, ID Fan and OD Fan ON
When Tr ≤ Ts - 2°C ** -Comp and OD Fan OFF, ID Fan remain ON
**When room temperature falling below compressor cut off point even on the lowest operation frequency, compressor will stop operates.
Operating Mode
Time
Tr <= Ts - 2°CComp will stop
Lowest Freq
Tr = Room TemperatureTs = Set Temperature
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Inverter Product Range
There are 5 operating modes:ii. Heat mode
When Ts > Tr - 1.0°C -Comp, ID Fan and OD Fan ON
When Tr ≥ Ts + 1.5°C ** -Comp and OD Fan OFF, ID Fan remain at lowest speed if ID coil ≥ 27°C
**When room temperature rising above compressor cut off point even on the lowest operation frequency, compressor will stop operates.
Operating Mode
Time
Tr - Ts ≥ 1.5°CComp will stop
Lowest Freq
Tr = Room TemperatureTs = Set Temperature
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Inverter Product Range
There are 5 operating modes:iii.Fan mode
Only High, Medium and Low fan speeds are allowedChanging cool mode to fan mode; the compressor and outdoor fan will stop Compressor will only ON if the minimum stop time is > 3 minutes if the user change back to cool mode
Operating Mode
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Inverter Product Range
There are 5 operating modes:iv.Auto mode (for single split)
Mode switching point:Heating Cooling
Tr ≥ Ts + 2.5 Cooling Heating
Tr ≤ Ts – 2.5
During initial operationCooling operation: Tr > TsHeating operation: Tr < Ts
Operating Mode
Tr = Room TemperatureTs = Set Temperature
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Inverter Product Range
There are 5 operating modes:v. Auto mode (for multi split)
Without Priority Room Setting If more than 1 indoor is operating, priority is given to the first
unit that was turned on If a unit is turned on later to the same operating mode as
the first unit, the unit will operate as normal If a unit that are turned on later to the different operating
mode as the first unit, the units will enter Standby mode
With Priority Room Setting Unit operation subjected to Priority Room operating mode
Operating Mode
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Inverter Product Range
Communication between ID and OD Master by outdoor unit Indoor PCB transmits signal to outdoor PCB every 0.5s.
Outdoor unit will response to indoor once the valid data is received
If the data communication line between indoor and outdoor disrupted for 15s continuously; Compressor will stop, OD fan will stop with fan delay timer. ID LED starts blinking error
If the communication resumes within 15s; error code will be cleared and compressor restarts after 3 minutes
If the communication does not resume after 15s; unit unable to restart and ID LED continues to blink
Communication
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Inverter Product Range
To prevent frequent compressor ON/OFF and to allow pressure equalization The compressor will be on 3 minutes stand-by after
turning OFF before it is allowed to turn ONOD fan delay by Off timer to improve pressure
equalization and to prevent refrigerant from entering into evaporator
Minimum Run Control
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Inverter Product Range
Allow unit to automatically resume the same operating mode it was in before a power failure
Factory pre-set
Change over switching is only carried out during operation
Auto Restart
4 Way Valve Control
Operating mode 4-way valve is
Heat, except for defrost ON
Cool
Dry
Defrost
OFF
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Inverter Product Range
Defrost Cycle
During defrost 5LCY Series I 5LCY Series II 5MSY
Compressor ON ON ON
4-way valve OFF
EXV in operating room Fixed opening
EXV in non operating room - - Fixed opening
Outdoor fan OFF OFF OFF
Indoor fan OFF
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Inverter Product Range
Defrost Cycle- A5LCY Series I Condition for entering defrost Compressor minimum run time of 6 minutes; OR Compressor accumulated run time of 45 minutes if OD coil
< 3C When OD coil < 0C AND OD coil < OD air - 10C Condition for terminating defrost
OD coil > 12C; OR Total defrost timer of 650 seconds
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Inverter Product Range
Defrost Cycle- A5MSY Condition for entering defrost Compressor minimum run time of 6 minutes; OR Compressor accumulated run time > 38 minutes Based on OD coil temperature, output frequency & OD air
temperature Condition for terminating defrost
Minimum run time of 120 seconds; ANDDetermine based on OD ambient, in the range of 4C ≤
OD coil ≤ 12C; ORTotal defrost timer of 650 seconds
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Inverter Product Range
Indoor coil freeze prevention Outdoor fan control is carried out:
Only available in cooling mode When the indoor coil temperature < 2°C, the compressor
starts to drop the frequency This protection will cut in when:
Indoor coil temperature < 0°C for more than 180s.Compressor will stop, OD fan stop after 30s and indoor fan can only run at lowest fan speed
The unit can only be restarted after 3 minutes When the indoor coil temperature > 13°C, the
compressor frequency will be reset based on the OD ambient, room and set temperature
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Inverter Products
Troubleshooting Guidelines
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Inverter Product Range
From Indoor panelWhen error occurs, indoor LED display will start blinking continuously: Green lightThe blinking pattern does not indicate of error details The error details could be retrieved from handset
Error Indication
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Inverter Product Range
Error Indication
From Wireless Handset (GS02) Retrieve error code (steps)i. Hold down On Timer Cancel or Off Timer Cancel
for 5 seconds until “ ” indication flashes on the handset temperature display section
ii. Press again On Timer Cancel or Off Timer Cancel repeatedly until ID buzzer produces a long beep means there is error occur. Error code will be indicates on the display (refer error code table in the manual)
iii. If it is a short beep or two consecutive beeps, indicates No Error on the unit
iv. To cancel error code display, press On Timer Cancel or Off Timer Cancel for 5 seconds or leave the button not press for 1 minute
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Inverter Product Range
From Wireless Handset (GS02) Retrieve last state error (steps)i. Remove battery from the handset and put it in back
ii. Immediately press Mode and On/Off button together until “ “ is being
displayed
iii. Press Mode button until 5:00 is displayed
iv. Press On/Off button once
v. Repeat step (i)
vi. Repeat steps retrieve error code above
Error Indication
ON/OFF button Mode
button
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Inverter Product Range
From Wired controller Netware 3C “ “ and error code will be displayed on the last 2 digits
of the clock display Retrieved last state memory by pressing Sleep and Timer Active together and the error will be displayed
Error Indication
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Normal operation
From Outdoori. A5LCY Series I: 7 segment display When there is no error, compressor running frequency
is displayed When there is error, it flashes the error code
Inverter Product Range
Error Indication
Flashing error code
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From Outdoori. A5LCY Series I: 7 segment display (con’t) Could also retrieve unit operating condition
i. Press the tact switch, the 7 segment will start to flash from “00”. Press again, it will show “ 01” and subsequent running number
shows the parameter numberii. In split second without pressing the tact switch, parameter measurement of the
particular code above will be displayed
Inverter Product Range
Error Indication
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Inverter Product Range
From Outdoorii. A5LCY28CR: 5 LED light indicator
GreenA 1 2 3 4◑ ● ● ● ● 00 NORMAL
UA INSTALLATION ERROR
UH ANTIFREEZE (OTHER ROOMS)
◑ ● ● ● ○ L4 HEAT SINK OVERHEAT
◑ ● ● ○ ● L5 IPM ERROR / IGBT ERROR
◑ ● ● ○ ○ U0 INSUFFICIENT GAS
◑ ● ○ ● ○ E8 AC INPUT OVER CURRENT
◑ ● ○ ○ ● E6 COMPRESSOR START-UP ERROR
◑ ● ○ ○ ○ U7 COMMUNICATION ERROR (OUTDOOR CONTROL PCB AND IPM PCB)
◑ ○ ● ● ● EA 4 WAY VALVE ERROR
◑ ○ ● ● ○ U2 DC VOLTAGE OUT OF RANGE
◑ ○ ● ○ ● E5 COMPRESSOR MOTOR LOCK / COMPRESSOR OVERLOADED
◑ ○ ● ○ ● F3 DISCHARGE PIPE OVERHEAT
◑ ○ ● ○ ○ A5 ANTIFREEZE (COOLING)
F6 HEAT EXCHANGER OVERHEAT
◑ ○ ○ ● ● H0 COMPRESSOR SENSOR SYSTEM ERROR
H6 COMPRESSOR FEEDBACK DETECTION ERROR
H8 AC CURRENT SENSOR ERROR
H9 OUTDOOR AIR THERMISTOR SHORT/OPEN
J3 COMPRESSOR DISCHARGE PIPE THERMISTOR SHORT / OPEN / MISPLACED
J6 OUTDOOR HEAT EXCHANGER THERMISTOR SHORT/ OPEN
J8 LIQUID PIPE THERMISTOR SHORT/ OPEN
J9 GAS PIPE THERMISTOR SHORT/OPEN
P4 HEAT SINK THERMISTOR SHORT / OPEN
◑ ○ ○ ● ○ L3 OUTDOOR CONTROL BOX OVERHEAT
◑ ○ ○ ○ ● E1 OUTDOOR PCB ERROR
◑ ○ ○ ○ ○ E7 OUTDOOR DC FAN MOTOR LOCK
DescriptionRedLED INDICATION
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Inverter Product Range
From Outdoorii. A5LCY40/50/60FR: LED light indicator
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From Outdooriii. A5MSY20/25/30BR: 5 LED light indicator
Inverter Product Range
Error Indication
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Resistance value: 10k @ 25degC All indoors except A5WMY-LR A5LCY-10/15DR, 20/25CR
Inverter Product Range
Thermistor resistance table
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Resistance value: 20k @ 25degC A5WMY10/15LR MLCY10/15FR A5LCY-Series II
Except discharge sensor
A5MSY
Inverter Product Range
Thermistor resistance table
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For A5LCY-Series IIdischarge sensor
Inverter Product Range
Thermistor resistance table
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The End The End
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