HHD009/012/018/024
Indoor Units
Outdoor Units
AWSI-HHD009-N11
AWSI-HHD012-N11
AWSI-HHD018-N11
AWSI-HHD024-N11
AWAU-YHD009-H11
AWAU-YHD012-H11
AWAU-YHD018-H11
AWAU-YHD024-H11
REFRIGERANT
R410A
SM HHD 1-A.1 GB
Version:1
HEAT PUMP
AUG-2017
LIST OF EFFECTIVE PAGES
LIST OF EFFECTIVE PAGES
Note: Changes in the pages are indicated by a “Revision#” in the footer of each effected page
(when none indicates no changes in the relevant page). All pages in the following list represent
effected/ non effected pages divided by chapters.
Dates of issue for original and changed pages are:
Original ....... 01 ........ 01-Aug-2017
Total number of pages in this publication is 70 consisting of the following:
Page
No.
Revision
No. #
Page
No.
Revision
No. #
* Zero in this column indicates an original page.
SM HHD 1-A.1 GB
A
Page
No.
Revision
No. #
TABLE OF CONTENTS
Table of Contents
1.
INTRODUCTION ............................................................................................................................. 1-1
2.
PRODUCT DATA SHEET ............................................................................................................... 2-1
3.
RATING CONDITIONS ................................................................................................................... 3-1
4.
OUTLINE DIMENSION ................................................................................................................... 4-1
5.
PERFORMANCE DATA ................................................................................................................. 5-1
6.
PRESSURE CURVES ..................................................................................................................... 6-1
7.
SOUND LEVEL CHARACTERISTICS ........................................................................................... 7-1
8.
ELECTRICAL DATA ....................................................................................................................... 8-1
9.
WIRING DIAGRAM ......................................................................................................................... 9-1
10.
REFRIGERATION DIAGRAMS ...................................................................................................... 10-1
11.
TUBING CONNECTIONS ............................................................................................................... 11-1
12.
CONTROL SYSTEM ....................................................................................................................... 12-1
13.
TROUBLESHOOTING .................................................................................................................... 13-1
14.
CHARACTERISTICS OF SENSOR ................................................................................................ 14-1
15.
EXPLODED VIEW & SPARE PART LIST ...................................................................................... 15-1
SM HHD 1-A.1 G
i
INTRODUCTION
1.
INTRODUCTION
1.1
General
HHD series is a monosplit DCI inverter air conditioner. This high-wall mounted type
indoor are mainly designed for residential buildings.
The ODU YHD product is a DC inverter outdoor with high technology. By using DC
compressor sine wave torque control technology, this product provides more
comfort and economical operating.
The whole series includes 4 models 09/12/18/24 in cooling capacity.
1.2
Main Features
The unit benefits from the most advanced technological innovations, namely:
 DC inverter technology.
 R410A models
 Microprocessor control and indoor LED display
 High SEER/SCOP , A++/A+ level with Average climate.
 Torque control for compressor running in lower Freqency but with low vibration
and little sound.
 Max allowing tubing distance of 25m(Model HHD018/024).
 Up to 10 m vertical high between indoor and outdoor units
 Cooling operation at outdoor temperature down to -15ºC.
 Heating operation at outdoor temperature down to -15ºC.
 Easy installation and service.
 Sleep mode from remote control to save energy
 ON/OFF timer and clock display
 Vertical auto swing with motorized flap (any position stop)
 Intelligent Deicing
 Memory from power failure
 Rapid cooling/heating
 I-Feel function
 Cold air prevention in heating
 Clean function (Blow dry)
 Self diagnosic (Error indications) for ease of maintenance
SM HHD 1-A.1 GB
1-1
INTRODUCTION
1.3
Indoor Unit
The indoor unit is wall mounted, and can be easily fitted to many types of residential
locations. It includes:
 LED display
 Variable speed with PG motor
 Motorized flap
 High efficiency filtration to ensure a best Air Quality : Advanced filtering combine
mechanical, Photo-catalytic + Bi-anti bacterial and observe bad gaseous and
smokes.
1.4
Control
The microprocessor indoor controller, and an infrared remote control, supplied as
standard, provide complete operating function and programming.
Remote control RC 8A:
Compact and economically design, it offers excellent user comfort. Combining modern
design with high technology, the RC8A remote control offers powerful functions of real
considering of user comfort and energy saving of air-conditioner .
For detail of functions, please refer to Appendix 1
1-2
SM HHD 1-A.1 GB
INTRODUCTION
1.5
Outdoor Unit
The outdoor units can be installed as floor or wall mounted units by using a wall
supporting bracket. The metal sheets are protected by anti- corrosion paint work
allowing long life resistance. All outdoor units are pre-charged. For further information
please refer to the Product Data Sheet, Chapter 2.
It includes :
 Compressor mounted in a soundproofed compartment :
 Axial fan driven by DC motor.
 Outdoor coil with hydrophilic louver fins for RC units.
 Outlet air fan grill.
 Interconnecting wiring terminal block.
1.6
Tubing Connections
Flare type interconnecting tubing to be produced on site.
For further details please refer to the Installation Manual.
1.7
Inbox Documentation
Each unit is supplied with its own installation, operation and remote control manuals.
SM HHD 1-A.1 GB
1-3
INTRODUCTION
1.8
Matching Table
INDOOR UNITS
OUTDOOR UNITS
AWSI-HHD009-N11
AWSI-HHD012-N11
AWSI-HHD018-N11
AWSI-HHD024-N11
V
AWAU-YHD009-H11
V
AWAU-YHD012-H11
V
AWAU-YHD018-H11
V
AWAU-YHD024-H11
1-4
SM HHD 1-A.1 GB
PRODUCT DATA SHEET
2.
PRODUCT DATA SHEET
Model: AWSI-HHD009-N11 / AWAU-YHD009-H11
Model Indoor Unit
Model Outdoor Unit
Installation Method of Pipe
Units
Capacity (1)
Pdesign
SEER /SCOP (2)
Energy efficiency class
Annual energy consumption
Tbiv
Tol
Power supply
Circuit breaker rating
Rated power input (Maximum power input)
Rated current (Maximum current)
Fan type & quantity
Fan speeds
H/M/L/VL
Air flow (3)
H/M/L/VL
External static pressure
Min-Max
Sound power level (4)
H/M/L
Sound pressure level(5)
H/M/L/VL
Moisture removal
Condensate drain tube I.D
Dimensions
WxHxD
Weight
Package dimensions
WxHxD
Packaged weight
Stacking height
Refrigerant control
Compressor type, model
Fan type & quantity
Fan speeds
H/L
Air flow
H/L
Sound power level(4)
H/L
Sound pressure level(5)
H/L
Dimensions
WxHxD
Weight
Package dimensions
WxHxD
Packaged weight
Stacking height
Refrigerant type
Refrigerant charge
(standard connecting tubing length)
Additional charge per 1 meter
Liquid line
Suction line
Connections between
units
Max,tubing length
Max,height difference
Operation control type
Heating elements
Others
kW
kW
W/W
OUTDOOR
INDOOR
Characteristics
kWh
oC
oC
V/Ph/Hz
A
kW
A
RPM
m3/hr
Pa
dB(A)
dB(A)
l/hr
mm
mm
kg
mm
kg
units
RPM
m3/hr
dB(A)
dB(A)
mm
kg
mm
kg
Units
AWSI-HHD009-N11
AWAU-YHD009-H11
Flared
Heating
Cooling
Average Warm Cold
2,65(0,45-3,23)
2.8(0.45-4.1)
2,65
2.60
2.60
2.60
6,1
4
4.6
3.2
A++
A+
A++
B
153
910
792
1707
N/A
-7
2
-15
N/A
-15
220-240V/Single/50Hz
10
1,55
6,9
Cross flow fan x1
1350/1100/900/700
1350/1140/980/820
280/370/520/600
0
55
24/30/38/41
0,80
16
770×283×201
8
847×276×345
9,5
8
EEV
Rotary DC Inverter
Axial x 1
900
1600
62
51
776×540×320
28
851×595×363
31
4
R410A
kg(5m)
0,7
gr / 1m
In.(mm)
In.(mm)
m.
m.
5m<L<15m 15g/m
1/4’’(6,35mm)
3/8’’(9,53mm)
15
10
Remote control
NA
kW
(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units).
(2) SEER / SCOP calculation accordance with EN14825.
SM HHD 1-A.1 GB
2-1
PRODUCT DATA SHEET
Model: AWSI-HHD012-N11 / AWAU-YHD012-H11
Model Indoor Unit
Model Outdoor Unit
Installation Method of Pipe
Characteristics
(1)
OUTDOOR
INDOOR
Capacity
Pdesign
SEER /SCOP (2)
Energy efficiency class
Annual energy consumption
Tbiv
Tol
Power supply
Circuit breaker rating
Rated power input (Maximum power input)
Rated current (Maximum current)
Fan type & quantity
Fan speeds
H/M/L/VL
Air flow (3)
H/M/L/VL
External static pressure
Min-Max
Sound power level (4)
H/M/L
Sound pressure level(5)
H/M/L/VL
Moisture removal
Condensate drain tube I.D
Dimensions
WxHxD
Weight
Package dimensions
WxHxD
Packaged weight
Stacking height
Refrigerant control
Compressor type, model
Fan type & quantity
Fan speeds
H/L
Air flow
H/L
Sound power level(4)
H/L
Sound pressure level(5)
H/L
Dimensions
WxHxD
Weight
Package dimensions
WxHxD
Packaged weight
Stacking height
Refrigerant type
Refrigerant charge
(standard connecting tubing length)
Additional charge per 1 meter
Liquid line
Suction line
Connections between
units
Max,tubing length
Max,height difference
Operation control type
Heating elements
Others
Units
kW
kW
W/W
kWh
oC
oC
V/Ph/Hz
A
kW
A
RPM
m3/hr
Pa
dB(A)
dB(A)
l/hr
mm
mm
kg
mm
kg
units
RPM
m3/hr
dB(A)
dB(A)
mm
kg
mm
kg
Units
AWSI-HHD012-N11
AWAU-YHD012-H11
Flared
Heating
Cooling
Average Warm Cold
3,54(0,6-3,96)
3,8(0,6-5,13)
3,54
2,70
3,20
2,70
6,1
4,0
4,6
3,2
A++
A+
A++
B
204
945
974
1772
N/A
-7
2
-15
N/A
-15
220-240V/Single/50Hz
Outdoor
1,65
7,3
Cross flow fan x1
1350/1150/950/750
1350/1190/1020/850
300/410/560/680
0
56
25/31/39/42
1,40
16
770×283×201
9
847×276×345
10,5
8
EEV
Rotary DC Inverter
Axial x 1
900
1600
63
53
776×540×320
29
851×595×363
32
4
R410A
kg(5m)
0,85
gr / 1m
In,(mm)
In,(mm)
m,
m,
5m<L<15m 15g/m
1/4’’(6,35mm)
3/8’’(9,53mm)
20
10
Remote control
NA
kW
(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units).
(2) SEER / SCOP calculation accordance with EN14825.
2-2
SM HHD 1-A.1 GB
PRODUCT DATA SHEET
Model: AWSI-HHD018-N11 / AWAU-YHD018-H11
Model Indoor Unit
Model Outdoor Unit
Installation Method of Pipe
Characteristics
(1)
OUTDOOR
INDOOR
Capacity
Pdesign
SEER /SCOP (2)
Energy efficiency class
Annual energy consumption
Tbiv
Tol
Power supply
Circuit breaker rating
Rated power input (Maximum power input)
Rated current (Maximum current)
Fan type & quantity
Fan speeds
H/M/L/VL
Air flow (3)
H/M/L/VL
External static pressure
Min-Max
Sound power level (4)
H/M/L
Sound pressure level(5)
H/M/L/VL
Moisture removal
Condensate drain tube I.D
Dimensions
WxHxD
Weight
Package dimensions
WxHxD
Packaged weight
Stacking height
Refrigerant control
Compressor type, model
Fan type & quantity
Fan speeds
H/L
Air flow
H/L
Sound power level(4)
H/L
Sound pressure level(5)
H/L
Dimensions
WxHxD
Weight
Package dimensions
WxHxD
Packaged weight
Stacking height
Refrigerant type
Refrigerant charge
(standard connecting tubing length)
Additional charge per 1 meter
Liquid line
Suction line
Connections between
units
Max,tubing length
Max,height difference
Operation control type
Heating elements
Others
Units
kW
kW
W/W
kWh
oC
oC
V/Ph/Hz
A
kW
A
RPM
m3/hr
Pa
dB(A)
dB(A)
l/hr
mm
mm
kg
mm
kg
units
RPM
m3/hr
dB(A)
dB(A)
mm
kg
mm
kg
Units
AWSI-HHD018-N11
AWAU-YHD018-H11
Flared
Heating
Cooling
Average Warm Cold
5,3(1,2-6,2)
5.6(1.1-6.0)
5,3
4.80
5.20
4.80
6,1
4.0
4.6
3.2
A++
A+
A++
B
305
1680
1583 3150
N/A
-7
2
-15
N/A
-15
220-240V/Single/50Hz
Outdoor
2,65
11,8
Cross flow fan x1
1350/1100/950/800
1400/1200/1050/900
460/560/680/800
0
60
32/37/40/45
1,80
16
865×305×215
12
948×310×383
15
8
Capillary
Rotary DC Inverter
Axial x 1
630
3200
65
55
955×700×396
46
1029×750×458
50,5
3
R410A
kg(5m)
R410a / 1,3
gr / 1m
In,(mm)
In,(mm)
m,
m,
5m<L<25m 15g/m
1/4’’(6,35mm)
1/2’’(12,7mm)
25
10
Remote control
NA
kW
(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units).
(2) SEER / SCOP calculation accordance with EN14825.
SM HHD 1-A.1 GB
2-3
PRODUCT DATA SHEET
Model: AWSI-HHD024-N11 / AWAU-YHD024-H11
Model Indoor Unit
Model Outdoor Unit
Installation Method of Pipe
Characteristics
(1)
OUTDOOR
INDOOR
Capacity
Pdesign
SEER /SCOP (2)
Energy efficiency class
Annual energy consumption
Tbiv
Tol
Power supply
Circuit breaker rating
Rated power input (Maximum power input)
Rated current (Maximum current)
Fan type & quantity
Fan speeds
H/M/L/VL
Air flow (3)
H/M/L/VL
External static pressure
Min-Max
Sound power level (4)
H/M/L
Sound pressure level(5)
H/M/L/VL
Moisture removal
Condensate drain tube I,D
Dimensions
WxHxD
Weight
Package dimensions
WxHxD
Packaged weight
Stacking height
Refrigerant control
Compressor type, model
Fan type & quantity
Fan speeds
H/L
Air flow
H/L
Sound power level(4)
H/L
Sound pressure level(5)
H/L
Dimensions
WxHxD
Weight
Package dimensions
WxHxD
Packaged weight
Stacking height
Refrigerant type
Refrigerant charge (standard connecting tubing
length)
Additional charge per 1 meter
Liquid line
Suction line
Connections between
units
Max,tubing length
Max,height difference
Operation control type
Heating elements
Others
AWSI-HHD024-N11
AWAU-YHD024-H11
Flared
Heating
Cooling
Average Warm
6,5(2,53-6,9)
7,0(2,53-7,6)
6,5
5,80
5,80
6,1
4,0
4,8
A++
A+
A++
373
2030
1692
N/A
-7
2
N/A
-15
220-240V/Single/50Hz
Outdoor
2,80
12,5
Cross flow fan x1
Units
kW
kW
W/W
kWh
oC
oC
V/Ph/Hz
A
kW
A
RPM
m3/hr
Pa
dB(A)
dB(A)
l/hr
mm
mm
kg
mm
kg
units
1350/1150/1000/850
RPM
m3/hr
dB(A)
dB(A)
mm
kg
mm
kg
Units
7,20
3,2
B
4725
-15
1400/1200/1000/900
550/700/800/1000
0
63
34/42/47/51
2,00
16
1007×315×219
14
1076×328×398
17
7
Capillary
Rotary DC Inverter
Axial x 1
800
4000
68
58
980×790×427
55,5
1083×855×488
60,5
3
R410A
kg(5m)
1,8
gr / 1m
In.(mm)
In.(mm)
m.
m.
5m<L<25m 15g/m
1/4"(9,53mm)
5/8"(15,88mm)
25
10
Remote control
NA
kW
Cold
(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units).
(2) SEER / SCOP calculation accordance with EN14825.
2-4
SM HHD 1-A.1 GB
RATING CONDITIONS
3.
RATING CONDITIONS
Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units).
Cooling:
Indoor:
27oC DB 19oC WB
Outdoor: 35 oC DB
Heating:
Indoor:
20oC DB
Outdoor: 7oC DB 6oC WB
3.1
Operating Limits
R410A
Cooling
Heating
Upper limit
Lower limit
Upper limit
Lower limit
Voltage
SM HHD 1-A.1 GB
Indoor
DB 23oC WB
21oC DB 15oC WB
27oC DB
10oC DB
32oC
Outdoor
43oC DB
-15oC DB
24oC DB 18oC WB
-15oC DB -16oC WB
1-PH 50Hz 198 – 264 V
3-1
OUTLINE DIMENSION
4.
OUTLINE DIMENSION
4.1
Indoor: HHD009,HHD012,HHD018,HHD024
Models
W
H
D
HHD009/012
HHD018
770
867
283
305
201
215
HHD024
1008
319
221
SM HHD 1-A.1 GB
4-1
OUTLINE DIMENSION
4.2
Outdoor: YHD009, YHD012
4.3
Outdoor: YHD018
4-2
SM HHD 1-A.1 GB
OUTLINE DIMENSION
4.4
Outdoor: YHD024
SM HHD 1-A.1 GB
4-3
PERFORMANCE DATA
5.
PERFORMANCE DATA
5.1
Model HHD009 + YHD009 ; HHD012 + YHD012
SM HHD 1-A.1 GB
5-1
PERFORMANE DATA
5.2
5-2
Model HHD018 + YHD018 ; HHD018 + YHD018
SM HHD 1-A.1 GB
PRESSURE CURVES
6.
PRESSURE CURVES
TBD
SM HHD 1-A.1 GB
6-1
SOUND LEVEL CHARACTERISTICS
7.
SOUND LEVEL CHARACTERISTICS
7.1
Sound Pressure Level
SM HHD 1-A.1 GB
7-1
SOUND LEVEL CHARACTERISTICS
7.2
TBD
7-2
Soud Pressure Level Spectrum (Measured as Figure 1)
ELECTRICAL DATA
8.
ELECTRICAL DATA
MODEL
YHD009
Power Supply
YHD012
YHD018
YHD024
To outdoor
1PH-220-240V-50Hz
7.3A
11.8A
Max Current, A
6.9A
12.4A
Circuit Breaker,A
10A
10A
16A
16A
Power Supply Wiring No. X Cross Section
mm2
3x1.5 mm2
3x1.5 mm2
3x1.5 mm2
3x2.5 mm2
Interconnecting Cable Model No. X Cross
Section mm2
4x1.0 mm2
4x1.0 mm2
4x1.0 mm2
4x1.0 mm2
NOTE
Power wiring cord should comply with local laws and electrical regulations requirements.
SM HHD 1-A.1 GB
8-1
WIRING DIAGRAMS
9.
WIRING DIAGRAM
9.1
HHD009,HHD012
9.2
HHD018,HHD024
SM HHD 1-A.1 GB
9-1
WIRING DIAGRAM
9.3
YHD009, YHD012
9.4
YHD018,YHD024
9-2
SM HHD 1-A.1 GB
REFRIGERATION DIAGRAMS
10.
REFRIGERATION DIAGRAMS
10.1
HHD009+YHD009, HHD012+YHD012
10.2
HHD018+YHD018, HHD024+YHD024
SM HHD 1-A.1 GB
10-1
REFRIGERATION DIAGRAMS
11.
TUBING CONNECTIONS
When the outdoor unit is installed above the indoor unit an oil trap is required every 5m along the
suction line at the lowest point of the riser. In case the indoor unit is installed above the outdoor,
no trap is required.
SM HHD 1-A.1 GB
11-1
CONTROL SYSTEM
12.
CONTROL SYSTEM
12.1
Electronic Control
12.1.1
Abbreviations
Abbreviation
A/C
BMS
PWR
CTT
DCI
EEV
HE
HMI
HST
Hz
ICT
IDU
MCU
OAT
OCT
ODU
OFAN
PFC
RAC
RAT
RC
RCT
RGT
RPS
RV
SB,STBY
SUCT
S/W
TBD
TMR
12.1.2
Definition
Air Condition
Building Management System
System Power
Compressor Top Temperature sensor
DC Inverter
Electronic Expansion Valve
Heating Element
Human Machine Interface
Heat Sink Temperature sensor
Hertz (1/sec) – electrical frequency
Indoor Coil Temperature (RT2) sensor
Indoor Unit
Micro Controller Unit
Outdoor Air Temperature sensor
ODU Coil Temperature sensor
Outdoor Unit
Outdoor Fan
Power Factor Corrector
Residential A/C
Room Air Temperature sensor
Reverse Cycle (Heat Pump)
Remote Control Temperature sensor
Return Gas Temperature sensor
Rounds per second (mechanical speed)
Reverse Valve
Stand By
Compressor Suction Temperature sensor
Software
To Be Defined
Timer
System Operation Concept
The control function is divided between indoor and outdoor unit controllers. Outdoor unit is the system
‘Master’, requesting the indoor unit for cooling/heating capacity supply. The indoor unit is the system
‘Slave’ and it must supply the required capacity unless it enters into a protection mode avoiding it
from supplying the requested capacity.
Target frequency is transferred via indoor to outdoor communication, and the caculation is based on
room temperature and set point temperature.
12.1.3
Compressor Frequency Control
The Compressor Frequency Control is based on the PI scheme.
SM HHD 1-A.1 GB
12-1
CONTROL SYSTEM
When starting the compressor, or when conditions are varied due to the change of the room
condition, the frequency must be initialized according to the ΔD value of the indoor unit and the Q
value of the indoor unit.
Q value: Indoor unit output determined from indoor unit capacity, air flow rate and other factors.
1. P control
Calculate ΔD value in each sampling time (20 seconds), and adjust the frequency according to its
difference from the frequency previously calculated.
2. I control
If the operating frequency is not change more than a certain fixed time, adjust the frequency up and
down according to the ΔD value.
Obtaining the fixed ΔD value
When the ΔD value is small- decrease the frequency
When the ΔD value is large- increase the frequency
3. Frequency management when other controls are functioning
When frequency is drooping;
Frequency management is carried out only when the frequency droops.
For limiting lower limit
Frequency management is carried out only when the frequency rises.
12.1.3.1 Frequency Changes Control
Frequency change rate is 1 Hz/sec.
12.1.3.2 Compressor Starting Control
When turning the compressor from OFF to ON, the upper limit of frequency must be set as follows.
(The function must not be used when defrosting.)
12.1.3.3 Minimum On and Off Time
Prohibit to turn ON the compressor for 3 minutes after turning it off.(except during deicing
protection)
12.1.4
Indoor Fan Control
8 Indoor fan speeds are determined for each model. 4 speeds for COOL modes and 4 speeds for
HEAT mode.
12-2
SM HHD 1-A.1 GB
CONTROL SYSTEM
Unit Model
09
12
18
24
Mode
Cooling
Heating
Cooling
Heating
Cooling
Heating
Cooling
Heating
Turbo
(Super high)
1350
1350
1350
1350
1350
1400
1350
1450
High
Medium
Low
1100
1140
1150
1190
1100
1200
1150
1200
900
980
950
1020
950
1050
950
1000
700
820
750
850
800
900
850
900
In high/ medium/ low indoor fan user setting, unit will operate fan in selected speed.
In AutoFan user setting, fan speed will be adjusted automatically according to the difference
between actual room temperature(RAT) and user set point temperature(SPT).
Indoor Fan speed
High
Medium
Cooling
>=2
(0,2)
RAT-SPT
Heating
<=1
(1,3)
Each speed will be kept at least 210 seconds even the condition changes
In DRY mode, the automatic fan speed is forced to be low.
Low
<=0
>=3
12.1.4.1 Turbo Speed
In COOL and HEAT mode (not available in AUTO, DRY, FAN mode), press the Turbo button, the
super high fan speed is selected on Remote control and the indoor fan rotates at super high speed.
12.1.5
Outdoor Fan Control
12.1.5.1 OFAN Speed Type
The outdoor fan motor is DC motor and variable speeds controllered by driver on outdoor controller.
12.1.5.2 General rules
1. The outdoor fan is ON when compressor ON during cooling, dring and heating mode.
2. Outdoor fan OFF will delay 30sec when compressor is OFF during cooling and heating mode.
3. Outdoor fan control under outdoor deicing please refer to 12.13.6
12.1.6
Refrigerant control
12.1.6.1 EEV was used in model 09 and 12
1. EEV operation after power-on: When power on, EEV will open 240 steps and then move back
with 540steps. This position will be recognized as 0. Then EEV will open to 480 steps and be
ready for system operating.
2. EEV open loop: depends on OAT,RAT,SPT and compressor frequency after compressor starts
to operate.
SM HHD 1-A.1 GB
12-3
CONTROL SYSTEM
3. Target CTT control: will be performed after compressor operates for 5min.The EEV opening will
be updated every 5s.
12.1.6.2 Capiliary is used in model 18 and 24
12.1.7
Reversing Valve (RV) Control
Reversing valve is on in heat mode.
When the unit is on in heating mode and shift to other modes, RV will be OFF after compressor
stops for 2min;
After protection stops, RV will be OFF after 4min;
12.2
Fan Mode
In this mode, the indoor fan may run at high,medium,low and automatic speed. The compressor,
outdoor fan and 4-way valve will be OFF.
In this mode, the range of setting temperature is 16~30 oC
12.3
Cool Mode
For model 09 and 12
If RAT≥SPT, the unit starts cooling operation. In this case, the compressor and outdoor fan will
operate and the indoor fan will run at the setting speed.
If RAT≤SPT-2, the compressor will stop operation and the outdoor fan will delay 30 seconds to stop.
While the indoor fan will run at the setting speed.
If SPT-2<RAT≤SPT, the unit will maintain the previous status.
For model 18 and 24
If RAT≥SPT-0.5, the unit starts cooling operation. In this case, the compressor and outdoor fan will
operate and the indoor fan will run at the setting speed.
If RAT≤SPT-2, the compressor will stop operation and the outdoor fan will delay 30 seconds to stop.
While the indoor fan will run at the setting speed.
If SPT-2<RAT≤SPT, the unit will maintain the previous status.
In AutoFan user setting, fan speed will be adjusted automatically according to the SPT and RAT,
rerfer to 12.1.4
12.3.1
Range of setting temperature
a) Normally the setting tempaterature range is 16~30 oC
b) where there is low condition cooling, when outdoor air is lower than 25 oC, the setting
temperature range will be 25~30 oC.
12-4
SM HHD 1-A.1 GB
CONTROL SYSTEM
12.4
Heat Mode
For Model 09 and 12
If RAT≤SPT+2, the unit will operate in heating mode. The compressor, outdoor fan and 4-way valve
will operate and the indoor fan will delay 3min to start at the latest
If SPT+2≤RAT≤SPT+5,the unit will maintain the previous status.
If RAT≥SPT+5, the compressor will stop, the outdoor fan will delay 30s to stop and the indoor fan
will blow for 60s at the setting speed. During this period, the fan speed can’t be switched.
For model 18 and 24
If RAT≤SPT+3.5, the unit will operate in heating mode. The compressor, outdoor fan and 4-way
valve will operate and the indoor fan will delay 3min to start at the latest
If SPT+3≤RAT≤SPT+5,the unit will maintain the previous status.
If RAT≥SPT+5, the compressor will stop, the outdoor fan will delay 30s to stop and the indoor fan
will blow for 60s at the setting speed. During this period, the fan speed can’t be switched.
12.4.1
Indoor Fan Control in Heat Mode
Indoor fan speed depends on the indoor coil temperature
Anti-cold air function
When starting the heating mode, anti-cold air function will be activated and indoor fan operates
according to following rules.
Case -1 RAT<24 oC :
When ICT ≤40 oC IFAN = Stop for 2 min and then switch to low speed
When ICT >40 oC IFAN = Low for 1 min and then switch to set speed
When ICT >42 oC IFAN swtich to set speed immediately.
Case -2 RAT≥24 oC :
When ICT ≤42 oC IFAN = Low for 1 min and then switch to set speed
When ICT >42 oC IFAN swtich to set speed immediately.
Residual heat blowing function
During heating, when the stopping condition for the compressor is reached, the compressor and the
outdoor fan motor stop running while the louver moves to position L. The indoor fan will stop after
running for 60s at setting speed.
12.5
Auto Cool/Heat Mode
In AUTO mode, the system selects the running mode (COOL/HEAT/FAN) automatically according
to the room temperature. The display shows the actual running mode and setting temperature.
There will be 30s delay for mode conversion.
1. When RAT≥26 oC, the cooling mode is selected. The set point temperature is 25 oC.
2. When RAT≤22 oC, the unit runs in heating mode. The set point temperature is 20 oC
3. When 23 oC ≤RAT≤ 25 oC, upon initial startup, the unit will enter auto mode and run in automatic
fan mode. If the other mode changes into auto mode, the previous running mode will remain.
SM HHD 1-A.1 GB
12-5
CONTROL SYSTEM
12.6
Dry Mode
Conditions and processes of dry mode is same as the cooling mode, while the indoor fan will run at
low speed.
In this mode, the Reverse Valve will be OFF and the temperature setting range is 16~30.
12.7
Louver Control
After power on, the up and down swing louver will automatically open and
then close completely.
In heating mode, if the swing function is not set, the up and down louver
will rotate to maximum in clockwise direction. Then it will rotate to position
D. Under other states, the upper and lower air deflector will rotate to level
L.
If the swing function is set when starting the unit, the louver will swing
between Position L and D, stop in any place between Position L and
position D. When the unit is turned off, the air deflector will stay in position
0.
The swing is available only when the swing function is set and the indoor fan is running.
12.8
Clean function
Clean function enables dring the indoor coil after Cool or Dry mode to avoid mould.
Press CLEAN button in Cool or Dry mode, and the
will be shown on remote control.
Under clean function, the indoor fan will continue operation for 2 min at low speed after the unit is
turned OFF.
Clean function is defaulted as OFF after unit is Power ON.
Clean function is not available in Auto, Fan or Heat mode.
12.9
Sleep function
Pressing SLEEP button will enable the Sleep function.
will be shown on remote control.
Sleep function in Cool and Dry mode:
The SPT will be adjusted according to following chart.
SPT+3
SPT+2
SPT+1
SPT
1hr
12-6
1hr
1hr
SM HHD 1-A.1 GB
CONTROL SYSTEM
Sleep function in Heat mode:
The SPT will be adjusted according to following chart.
SPT
SPT-1
SPT-2
SPT-3
1hr
1hr
1hr
Press either Sleep button or ON/OFF button can cancel the Sleep function.
Sleep function will not be available in Auto mode or Fan mode.
12.10
I-Feel function
I-Feel function maintains the room temperature by comparing the RCT on remote control.
Pressing IFEEL button will enable the I-Feel function.
will be shown on remote control.
Under I-Feel funtion, remote control sends I-Feel data every 10 min to IDU controller. If the IDU
controller does not received I-Feel data after 11 min. I-Feel function will be interrupted and then the
AC will work according to RAT on the IDU.
I-Feel function can not be remembered after power failure.
12.11
Forced operation (Refrigerant recovery)
Enter into Forced Operating:
After the unit is energized for 5mins, press the Light button on remote controller for 3 times in 3s
successively to enter into Forced Operating Mode.
Fo will be shown from the IDU display. Under Forced Operating, all loads will operate in cooling
mode. (The setting fan speed is high fan speed and the setting temperature is 16°C)
Exit Forced Operating:
Forced Operating will be exited after receiving any RC commands and then the unit will operate at
the current setting command.
Forced operating will be also turned off automatically after 25 mins and continue the operating
mode before forced operation.
12.12
Forced deicing
Enter into Forced deicing
Under the Heat Mode for both indoor and remote control, set the remote control temperature as 16.
SM HHD 1-A.1 GB
12-7
CONTROL SYSTEM
press the button of temperature “+,-,+,-,+,-” in 5s successively to enter into Forced deicing
Heating indicator from display will blink ON 10s and OFF 0.5s to indicate the unit is under Forced
deicing.
Exit Forced deicing
Once the unit finsih the deicing process, it will resume normal heating operation.
12-8
SM HHD 1-A.1 GB
CONTROL SYSTEM
12.13
Protections
There are 4 protection codes.
Normal (Norm) – unit operate normally.
Stop Rise (SR) – compressor frequency can not be raised but does not have to be decreased.
HzDown – Compressor frequency is reduced by 2Hz/s
Stop Compressor (SC) – Compressor is stopped.
12.13.1
Indoor Coil Defrost Protection
Conditions for Start Controlling
Judge the controlling start with the ICT (Indoor Coil Temperature) after 2 sec from operation start.
During cooling operation, the signals being sent from the indoor unit allow the operating frequency
limitation and then prevent freezing of the indoor heat exchanger.
Compressor will stop when ICT < 0 oC for continuous 3 mins.
the outdoor fan will stop after 30 seconds, and the indoor fan and swing motor will keep running in
the original mode.
When ICT>6°C and the compressor has stopped for 3 minutes, the compressor will resume running
in the original mode.
If the unit stops as such protection for 6 times, it can not resume running automatically and display
error code E2, it can resume by pressing ON/OFF.
During the operating, If compressor operates for more than 10min, the counter of stop operation
due to protection will be cleared.
12.13.2
Compressor over Heating Protection
The Discharging temperature is used as the compressor’s internal temperature. If the discharge
temperature rises above a certain level, the operating frequency upper limit is set to keep this
temperature from going up further.
When CTT> A oC compressor will stop.
When CTT< B oC and compressor has stopped for 3mins, the compressor will resume running in
the original mode.
When CTT≥ B oC, the compressor will Stop Rise (SR) or decrease the frequency (HzDown)
Value
A
B
Model 09/12
110
90
Model 18/24
115
97
If the unit stops as such protection for 6 times, it can not resume running automatically and display
error Code E4, it can be resumed by pressing ON/OFF.
During the operating, If compressor operates for more than 10min, the counter of stop operation
due to protection will be cleared.
SM HHD 1-A.1 GB
12-9
CONTROL SYSTEM
12.13.3
Indoor Coil over Heating Protection(Heat Mode)
Conditions for Start Controlling
Judge the controlling start with the ICT after 2 sec from operation start.
During heating operation, the signals being sent from the indoor unit allow the operating frequency
limitation and prevent abnormal high pressure.
When ICT> A oC compressor will stop.
When ICT < B oC and compressor has stopped for 3mins, the compressor will resume running in the
original mode.
When ICT≥ B oC, the compressor will Stop Rise (SR) or decrease the frequency (HzDown)
Value
A
B
Model 09/12
62
52
Model 18/24
64
54
If the unit stops as such protection for 6 times, it can not resume running automatically and display
the error code E8, it can resume by pressing ON/OFF.
During the operating, If compressor operates for more than 10min, the counter of stop operation
due to protection will be cleared.
12.13.4
Outdoor Coil Overheating protection (Cool/Dry Mode):
During cooling operation, the ODU Coil Overheating Protection is detected by temperature sensor
OCT.
When OCT> A oC compressor will stop.
When OCT< B oC and compressor has stopped for 3mins, the compressor will resume running in
the original mode.
When OCT≥ B oC, the compressor will Stop Rise (SR) or decrease the frequency (HzDown)
Value
A
B
Model 09/12
62
52
Model 18/24
65
55
If the unit stops as such protection for 6 times, it can not resume running automatically and display
the error code E8, it can resume by pressing ON/OFF.
During the operating, If compressor operates for more than 10min, the counter of stop operation
due to protection will be cleared.
12.13.5
Compressor over Current Protection
Detect an input current by the CT during the compressor is running, and set the frequency upper
limit from such input current. In case of heat pump model, this control is the upper limit control
function of the frequency which takes priority of the lower limit of four way valve activating
compensation.
Detail
12-10
SM HHD 1-A.1 GB
CONTROL SYSTEM
Model 09/12: Compressor will stop when AC current reaches 14.0A for continuously 2.5s.
Model 18/24: Compressor will stop when AC current reaches 17.0A for continuously 2.5s.
If the unit stops as such protection for 6 times, it can not resume running automatically and display
error Code E5, it can resume by pressing ON/OFF.
During the operating, If compressor operates for more than 10min, the counter of stop operation
due to protection will be cleared.
12.13.6
Outdoor Coil Deicing Protection
This protection is for Heat Pump Only
This protection is carried out by the cooling cycle (reverse cycle). The defrosting time or outdoor
heat exchanger temperature must be more than its setting values when finishing the deicing
protection.
In the deicing protection, IFAN is forced OFF.
12.13.6.1
Deicing Starting Conditions
This protection is for Heat Pump Only
This protection is carried out by the cooling cycle (reverse cycle). The defrosting time or outdoor
heat exchanger temperature must be more than its setting values when finishing the deicing
protection.
In the deicing protection, IFAN is forced OFF.
12.13.6.2
Deicing Protection Procedure
Deicing Starting Conditions:
The starting conditions is a function of OAT and (OCT). Under the conditions that the system is in
heating operation for certain period (Accumulated time)
After the deicing starting condition is detected for continuous 3minutes, the de-icing will start.
Compressor, IFAN, OFAN and RV operate according to following chart during deicing.
For Model 09/12:
Deicing
Heating
Heating
15s
Comp
ON
OFAN
ON
RV
ON
30s
60s
ON
ON (Max. 7 min )
ON
30s
ON
Anti cold air
Max 3min
IFAN
ON
SM HHD 1-A.1 GB
ON
12-11
CONTROL SYSTEM
For Model 18/24:
Deicing
Heating
55s
55s
Comp
ON
Heating
ON
ON (Max. 8 min )
50s
OFAN
RV
ON
ON
ON
ON
Anti cold air
Max 3min
IFAN
12.13.6.3
ON
ON
Exiting Deicing
OCT≤12°C
or
OAT<5°C and OCT≥6°C lasts for more than 80Sec
Or De-icing time reaches to maximum deicing time.
12.13.7
AC Voltage Drop:
During compressor operation, the system will stop in case of an AC voltage malfunction the
unit will resume its operation automatically after 3min.
12.13.8
Communication malfunction:
If the unit does not receive correct signal from indoor unit for 3min continuously, the unit will
stop and will show communication malfunction protection (E6);
if the communication malfunction had been resumed and the compressor had stopped for a
period of 3min, the unit will restart its operation.
12.13.9
Overload protection of compressor
The Over Load Protector (OLP) is equipped to have the protection by compressor shell
temperature.
If OLP is detected OPEN for 3s successively, the system will stop operation.
it OLP is detected CLOSE, and compressor has stopped for 3min, the AC can go back to
normal operation.
12-12
SM HHD 1-A.1 GB
CONTROL SYSTEM
If the unit stops operation due to overload protection of compressor for 3 times successively,
the unit can’t resume operation automatically and will show H3 error code, except pressing
ON/OFF button.
* The counter can be cleared if compressor operates for 30min.
12.13.10 IPM module protection
After compressor is turned on, Once IPM modular protection signal (by its current or
temperature )is detected, the unit will stop operation immediately.
If modular protection is resumed and compressor has stopped for 3min, the complete unit
can then be allowed to resume operation.
If the unit stops operation due to modular protection for 3 times successively, the unit can’t
resume operation automatically and show error code H5, except pressing ON/OFF button.
* If compressor has operates for more than 10 min successively, the counter will be cleared.
12.13.11 Modular overheating protection (HST overheating protection)
Protect the IPM modular by reducing compressor frequency or stop compressor according
to the Module temperature (HST)
When HST>=80C, compressor frequency will be decreased or stopped increasing.
When HST>=95C, the unit will stop. (Back to normal when HST>87C and Comp OFF
time >3mins.)
If the unit stops operation for 6 times, the unit can’t resume its operation and show error
code P8 . Only press ON/OFF button can resume the operation.
* If compressor has operates for more than 10 min successively, the counter will be cleared.
12.13.12 Sensor Failure
When the temperature sensor failure is detected, the unit will stop operation, and error
code will be shown accordingly.
Error code of Sensor:
F1 – RAT Sensor Failure (short circuit or open circuit for 5s successively)
F2 – ICT Sensor Failure (short circuit or open circuit for 5s successively)
F3 – OAT Sensor Failure (short circuit or open circuit for 30s successively)
F4 – OCT Sensor Failure (short circuit or open circuit for 30s successively, and don’t
measure within 10 mins after deicing.)
F5 – CTT Sensor Failure (short circuit or open circuit for 30s successively after compressor
starts 3 mins)
SM HHD 1-A.1 GB
12-13
CONTROL SYSTEM
12.14
Operating the Unit from the ON/OFF Button
The ON/OFF button allows to operate the unit in AUTO mode, the microcomputer will monitor the
room temperature and select the (COOL, HEAT, FAN) mode automatically, and temperature/Fan
speed settings can not be changed.
12.15
Indoor Unit Controllers and Indicators
The following is schematic drawing for the display:
RUN INDICATOR
COOL INDICATOR
DRY INDICATOR
HEAT INDICATOR
2* 7 segments display
Unit ON/OFF Button
12-14
1.
Lights up when the Air Conditioner is connected to power
and the mode is STBY.
2. When the unit is turned on remotely, the RUN LED goes out
while the current setting running mode is displayed
1. Lights up during specified operation mode
(COOL/DRY/HEAT).
2. HEAT indicator will blink ON 10s and OFF 0.5s under Deicing
protection.
1. In normal situation, the setting temperature is displayed.
2. Shows outdoor temperature or indoor temperature when
receiving the corresponding demand from controller. It resumes
displaying setting temperature 5s later
3. Shows the alarm code whenever there is an alarm.(Refer to
Diagonostic part)
Short pressing(Less than 5s) : Unit will swich between Auto mode
and STBY. System will select the COOL/HEAT/FAN mode
automatically and temperature/Fan speed settings can not be
changed.
Long pressing (5~10s): System will enter into Force cooling
operating
SM HHD 1-A.1 GB
TROUBLESHOOTING
13.
TROUBLESHOOTING
13.1
ELECTRICAL & CONTROL TROUBLESHOOTING
13.1.1
Precautions before Performing Inspection or Repair
Be cautious during installation and maintenance. Do operation following the regulations to
avoid electric shock and casualty or even death due to drop from high attitude.
* Static maintenance is the maintenance during de-energization of the air conditioner.
For static maintenance, make sure that the unit is de-energized and the plug is disconnected.
*Dynamic maintenance is the maintenance during energization of the unit. Before dynamic
maintenance, check the electricity and ensure that there is ground wire on the site. Check if
there is electricity on the housing and connection copper pipe of the air conditioner with voltage
tester. After ensure insulation place and the safety, the maintenance can be performed.
Take sufficient care to avoid directly touching any of the circuit parts without first turning off the
power. At time such as when the circuit board is to be replaced, place the circuit board
assembly in a vertical position. Normally,diagnose troubles according to the trouble diagnosis
procedure as described below.(Refer to the check points in servicing written on the wiring
diagrams attached to the indoor/outdoor units.)
Precautions when inspecting the control section of the outdoor unit:
A large-capacity electrolytic capacitor is used in the outdoor unit controller
(inverter).Therefore,if the power supply is turned off, charge(charging voltage DC280V to
380V)remains and discharging takes a lot of time. After turning off the power source,if touching
the charging section before discharging, an electrical shock may be caused.
The outdoor unit can not be started up until the unit is de-energized for 20min
13.1.2
Confirmation
13.1.2.1 Confirmation of Power Supply Confirm that the power breaker operates(ON)
normally;
13.1.2.2 Confirmation of Power Voltage Confirm that power voltage is AC220~240V +/10%. If power voltage is not in this range, the unit may not operate normally.
SM HHD 1-A.1 GB
13-1
TROUBLESHOOTING
13.1.3
Judgment by Indoor/Outdoor Unit Diagnostics
Error code from hardware malfunction will be shown immediately whereas other malfuction will be
displayed after compressor stops for 200s
When there are several malfunctions, they will be displayed circularly.
Malfunction
2x7
Segments
OPER Indicator OFF 3s and blink once
Possible causes / Actions
1. Refrigerant was superabundant
2. Poor heat exchange (including filter
blockage of heat exchanger and bad
radiating environment)
3.Ambient temperature is too high.
E2
OPER Indicator OFF 3S and blink twice
1. Poor air-return in indoor unit
2. Fan speed is abnormal
3. Evaporator is dirty.
System block or
refrigerant leakage
E3
OPER Indicator OFF 3S and blink 3
times
Compressor over Heating
Protection
E4
OPER Indicator OFF 3S and blink 4
times
System High Pressure
Protection
Indoor Coil Defrost
Protection
AC Over Current
Communication
Malfunction
E1
E5
E6
Indoor/Outdoor Coil Over
Heating Protection
E8
EEPROM problem
EE
IDU LEDs
OPER Indicator OFF 3S and blink 5
times
OPER Indicator OFF 3 Sand blink 6
times
OPER Indicator OFF 3S and blink 8
times
HEAT Indicator OFF 3Sand blink15
times
Stop rise/HZ down due to
HST over heating
protection
EU
Jumper Cap Malfunction
Gathering refrigerant
RAT Failure
ICT Failure
C5
F0
F1
F2
OAT Failure
F3
OCT Failure
F4
CTT Failure
F5
COOL Indicator OFF 3S and blink once
COOL Indicator OFF 3S and blink twice
COOL Indicator OFF 3Sand blink3
times
COOL Indicator OFF 3Sand blink4
times
COOL Indicator OFF 3S and blink 5
times
HZ down due to overload
F6
COOL Indicator OFF 3S and blink for 6
times
Hz down due to over
current
F8
COOL Indicator OFF 3S and blink 8
times
Hz down due to CTT over
heating
F9
COOL Indicator OFF 3S and blink 9
times
13-2
OPER Indicator OFF 3S and blink 15
times
1.Low-pressure protection
2.Low-pressure protection of system
3.Low-pressure protection of compressor
1. EEV connection problem or damage
2. Refrigerant leakage
3. Poor heat exchange
1. Supply voltage is unstable
2. Supply voltage is too low and load is
too high
3. Evaporator is dirty.
1. Wiring mistakes
2. IDU or ODU PCB problem
1. Too high ambient temperature
2. Poor heat exchange (including
blockage and bad radiating environment )
Outdoor main board damaged
1. Insufficient grease on heatsink or poor
connection of heatsink to PCB
2. Outdoor PCB problem.
1. No jumper cap insert on main board.
2. Incorrect insert of jumper cap.
3. Jumper cap damaged.
4. Abnormal detecting circuit of main
board.
Normal function
1. Sensor connection is not good
2. Indoor ambient temp. sensor
damaged.(check with sensor resistance
value chart)
3. Main board damaged.
1. Too high ambient temperature
2. Poor heat exchange (including
blockage and bad radiating environment )
1.The input supply voltage is too low
2.System pressure is too high and
overload
1.Overload or temperature is too high;
2.Refrigerant is insufficient
3.Malfunction of electric expansion valve
(EEV)
SM HHD 1-A.1 GB
TROUBLESHOOTING
Malfunction
2x7
Segments
IDU LEDs
Possible causes / Actions
Stop rise/HZ down due to
IDU defrosting protection
FH
DC Over Voltage
PH
COOL Indicator OFF 3S and blink 11
times
DC Under Voltage
PL
HEAT Indicator OFF 3Sand blink21
times
1. Poor air-return in indoor unit
2. Fan speed is abnormal
3. Evaporator is dirty.
1. AC power supply is higher than 265V
2. Outdoor PCB circuit malfunction
1. AC power supply voltage is less than
150VAC
2. Outdoor PCB circuit malfunction
P5
COOL Indicator OFF 3Sand blink15
times
1. Abnormal power input voltage.
2. Compressor wiring mistake.
3. Liquid and gas valve are not open.
4. EEV damaged or not proper working
5. Poor heat exchange.
6. Over charged system.
Charging malfunction of
capacitor
PU
HEAT Indicator OFF 3Sand blink17
times
HST Failure
P7
HEAT Indicator OFF 3Sand blink18
times
HST over heating
protection
P8
HEAT Indicator OFF 3Sand blink19
times
1. Reactor open
2. Charging relay or other components
damaged on PCB.
1. Senor was broken or damaged
2. PCB temperature detection cuircuit
has problem
1. Insufficient attachment of IPM module
to Heatsink
2. Outdoor PCB problem.
H3
HEAT Indicator OFF 3Sand blink3
times
1. EEV connection problem or damaged
2. Refrigeratn leakage
3. OLP damaged
DC Over Current
Compressor overload
protection
IPM protection
H5
HEAT Indicator OFF 3Sand blink5
times
No feedback of indoor
motor
H6
OPER Indicator OFF 3S and blink 11
times
1.Abnormal power input voltage.
2.Compressor wiring mistake.
3.Liquid and gas valve are not open.
4.EEV damaged or not proper working
5.Poor heat exchage.
6.Over charged system.
1. Bad contact of DC motor feedback
terminal.
2. Bad contact of DC motor control end.
3. Fan motor is blocked.
4. Motor malfunction.
5. Malfunction of main board rev
detecting circuit.
HEAT Indicator OFF 3Sand blink7
times
1. Abnormal power input voltage.
2. Compressor wiring mistake.
3. Liquid and gas valve are not open.
4. EEV damaged or not proper working
5. Poor heat exchage.
6. Over charged system.
Desynchronizing of
compressor
H7
PFC protection
Outdoor DC fan motor
malfunction
HC
Over Power Protection
L9
IDU/ODU Mismatch
LP
HEAT Indicator OFF 3Sand blink6
times
OPER Indicator OFF 3S and blink 23
times
OPER Indicator OFF 3S and blink 20
times
OPER Indicator OFF 3S and blink19
times
Start-up Failure
LC
HEAT Indicator OFF 3Sand blink11
times
SM HHD 1-A.1 GB
L3
1. PFC module assembly problem.
2. Poor heat exchange of Heatsink
3. PFC reactor problem.
4. Abnormal power voltage
5. PFC circuit problem on PCB
1.DC fan motor malfunction or blocked
2.Bad connection
To protect the electronical components
when detect high power
Indoor unit and outdoor unit doesn't
match
1. Compressor wiring mistake
2. Over charged system
3. System not balanced before
compressor starting
4. Compressor problem
13-3
TROUBLESHOOTING
Malfunction
ODU Deicing
Malfunction of phase
current detection circuit
for compressor
Malfunction of voltage
dropping for DC BUS
AC Current detection
problem
The RV is abnormal
Zero-crossing protection
(IDU)
Outdoor unit zero-cross
detecting error
13-4
2x7
Segments
IDU LEDs
HEAT Indicator OFF 3Sand blink
once(during blinking, ON 10s and
HEAT Indicator OFF 0.5s)
Possible causes / Actions
Its the normal state
U5
HEAT Indicator OFF 3Sand blink13
times
HEAT Indicator OFF 3Sand blink20
times
COOL Indicator OFF 3Sand blink13
times
U7
COOL Indicator OFF 3Sand blink20
times
Outdoor main board damaged
1.Supply voltage is lower than AC175V;
2.Wiring terminal RV is loosened or
broken;
3.RV is damaged.
U8
OPER Indicator OFF 3S and blink 17
times
1.Power supply is abnormal
2.Detection circuit of indoor control main
board is abnormal.
U1
U3
U9
Outdoor main board damaged
Supply voltage is unstable
Outdoor main board damaged
SM HHD 1-A.1 GB
TROUBLESHOOTING
13.1.4
Checking the refrigeration system
Checking system pressures and other thermodynamic measures should be done when system
is in Test Mode (in Test mode, system operates in fixed settings). The performance curves
given in this manual are given for unit performance in test mode when high indoor fan speed is
selected.
Entering test mode please refer to section 12- Control system.
13.2
Simple procedures for checking the Main Parts
13.2.1
Checking Mains Voltage.
Confirm that the Mains voltage is between 198 and 264 VAC. If Mains voltage is out of this
range, abnormal operation of the system is expected. If in range check the Power (Circuit)
Breaker and look for broken or loosed cable lugs or wiring mistake(s).
13.2.2
Checking Power Input.
If Indoor unit power LED is unlighted, power down the system and check the fuse of the Indoor
unit. If the fuse is OK replace the Indoor unit controller. If the fuse has blown, replace the fuse
and power up again.
Checking Power Input procedure for the Outdoor unit is the same as with the Indoor unit.
13.2.3
Checking the Outdoor Fan Motor.
For AC motor
Check the voltage between two pins Hi and N of connector OFAN on controller, normal
voltage is 220~240VAC.
For DC Motor
Check the voltage between any two pins of connector OFAN on controller, normal voltage is
280~380VDC
13.2.4
Checking the Compressor.
The compressor is brushless permanence magnetic DC motor. Three coil resistance is
same. Check the resistance between three poles. The normal value should be with the
almost same value. Pay attention U,V, W are respective to connect to
RED,YELLOW,BLUE wires.
13.2.5
Checking the Reverse Valve (RV).
Running in heating mode, check the voltage between two pins of reverse valve connector,
normal voltage is 220~240VAC.
SM HHD 1-A.1 GB
13-5
CHARACTERISTICS OF SENSOR
14.
CHARACTERISTICS OF SENSOR
14.1.1
RAT/OAT
RAT/OAT R-T chart
140
130
120
110
Resistance(Kohm)
100
90
80
70
60
50
40
30
20
10
0
-20
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
35
40
45
50
55
60
65
70
Temperature(C)
14.1.2
ICT/OCT
ICT/OCT R-T Chart
180
170
160
150
140
Resistance(Kohm)
130
120
110
100
90
80
70
60
50
40
30
20
10
0
-20
-15
-10
-5
0
5
10
15
20
25
30
Temperature(C)
SM HHD 1-A.1 GB
14-1
CHARACTERISTICS OF SENSOR
14.1.3
CTT
CTT R-T Chart
150
140
130
120
Resistance(Kohm)
110
100
90
80
70
60
50
40
30
20
10
0
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
Temperature(C)
14-2
SM HHD 1-A.1 GB
EXPLODED VIEW & SPARE PART LIST
EXPLODED VIEW & SPARE PART LIST
15.1
Exploded view of indoor unit: HHD009
EV - AWSI-HHD009-N11
15.
SM HHD 1-A.1 GB
15-1
EXPLODED VIEW & SPARE PART LIST
15.2
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
15-2
Spare part list of indoor Unit: HHD009
Part Code
1112208201
20012823
24252019
63062017
2001237501
10512119
26112486
10512160
1054202001
0523204101
2220229501
0125201801A
15002020
26112191
10352423
01002957
05212423
24212108
76512210
76712032
10542024
10000201391
20122109
01592074
73012005
1521210701
22242083
22242084
30568112
20112086
30138000407
42011233
30510460_K88497
390000453
39000305
none
none
Part Description
Filter Sub-Assy
Front Panel Assy
Screw Cover
Membrane
Front Case Assy
Guide Louver
Helicoid Tongue
Air Louver
Shaft of Guide Louver
Drainage Pipe Sub-assy
Rear Case assy
Wall Mounting Frame
Motor Sub-Assy
Motor Press Plate
Cross Flow Fan
Evaporator Assy
Temp Sensor Sleeving
Evaporator Support
Fan Bearing
Bearing Holder
Axile Bush Sub-assy
Electric Box Assy
Electric Box Cover Sub-Assy
Shield Cover
Crank
SteppingMotor
Indicator Shield Cover
Indicator Light Cover
Display Board
Electric Box
Main Board
Terminal Board
Remote Controller
Temperature Sensor
Temperature Sensor
Power Cord
Pipe Connection Nut Accessories
qty
2
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
SM HHD 1-A.1 GB
EXPLODED VIEW & SPARE PART LIST
Exploded view of indoor unit: HHD012
EV- AWSI-HHD012-N11
15.3
SM HHD 1-A.1 GB
15-3
EXPLODED VIEW & SPARE PART LIST
15.4
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
15-4
Spare part list of indoor Unit: HHD012
Part Code
1112208201
20012823
24252019
63022016
20012824
10512119
26112486
10512160
1054202001
0523204101
2220229501
0125201801A
15002020
26112191
10352423
01002958
05212423
24212108
76512210
76712032
10542024
10000201392
20122109
01592074
73012005
1521210701
22242083
22242084
30568112
20112086
30138000407
42011233
30510460_K88497
390000453
39000305
none
none
Part Description
Filter Sub-Assy
Front Panel Assy
Screw Cover
Membrane
Front Case Assy
Guide Louver
Helicoid Tongue
Air Louver
Shaft of Guide Louver
Drainage Pipe Sub-assy
Rear Case assy
Wall Mounting Frame
Motor Sub-Assy
Motor Press Plate
Cross Flow Fan
Evaporator Assy
Temp Sensor Sleeving
Evaporator Support
Fan Bearing
Bearing Holder
Axile Bush Sub-assy
Electric Box Assy
Electric Box Cover Sub-Assy
Shield Cover
Crank
SteppingMotor
Indicator Shield Cover
Indicator Light Cover
Display Board
Electric Box
Main Board
Terminal Board
Remote Controller
Temperature Sensor
Temperature Sensor
Power Cord
Pipe Connection Nut Accessories
qty
2
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
SM HHD 1-A.1 GB
EXPLODED VIEW & SPARE PART LIST
Exploded view of indoor unit: HHD018
EV- AWSI-HHD018-N11
15.5
SM HHD 1-A.1 GB
15-5
EXPLODED VIEW & SPARE PART LIST
15.6
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
15-6
Spare part list of indoor Unit: HHD018
Part Code
none
27230001494
11122104
242520041
20012497
10512140
10542036
10512160
26112232
22202154
76712012
7651205102
4002052317
30510460_K88497
390000597
390000451
24212119
01002320
01252484
10352036
26112231
15012146
2611216401
0523001407
15012086
10582070
10000201021
20112103
22242084
42011233
22242083
30138000408
3301074712
4202300115
01592088
20122123
01592087
Part Description
Decorative Strip
Front Panel
Filter Sub-Assy
Screw Cover
Front Case Assy
Guide Louver
Axile Bush
Air Louver
Helicoid Tongue
Rear Case assy
Rubber Plug (Water Tray)
O-Gasket sub-assy of Bearing
Connecting Cable
Remote Controller
Temperature Sensor
Temperature Sensor
Evaporator Support
Evaporator Assy
Wall Mounting Frame
Cross Flow Fan
Motor Press Plate
Fan Motor
Connecting pipe clamp
Drainage Hose
SteppingMotor
Crank
Electric Box Assy
Electric Box
Indicator Light Cover
Terminal Board
Indicator Shield Cover
Main Board
Capacitor CBB611A
Jumper
Shield Cover of Electric Box Cover
Electric Box Cover
Shield Cover of Electric Box
qty
0
1
2
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
SM HHD 1-A.1 GB
EXPLODED VIEW & SPARE PART LIST
Exploded view of indoor unit: HHD024
EV- AWSI-HHD024-N11
15.7
SM HHD 1-A.1 GB
15-7
EXPLODED VIEW & SPARE PART LIST
15.8
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
15-8
Spare part list of indoor Unit: HHD024
Part Code
4202300127
22242083
22242084
30568112
20112103
42011233
01592087
30138000409
10000200732
20122123
01592088
20112081
none
4002052317
20012828
27230004362
20012514
24252016
15012098
10512138
10542036
01100100032
26112188
10352030
26112330
1521300101
10582070
26112229
10512139
0523001405
00000100023
01252032
76712012
10512037
26152025
30510460_K88497
7651205102
24212139
11122091
Part Description
Jumper
Indicator Shield Cover
Indicator Light Cover
Display Board
Electric Box
Terminal Board
Shield Cover of Electric Box
Main Board
Electric Box Assy
Electric Box Cover
Shield Cover of Electric Box Cover
Electric Box Cover2
Power Coad
Connecting Cable
Front Panel Assy
Front Panel
Front Case Assy
Screw Cover
Fan Motor
Guide Louver
Axile Bush
Evaporator Assy
Connecting pipe clamp
Cross Flow Fan
Motor Press Plate
Stepping Motor
Crank
Helicoid Tongue
Air Louver
Drainage Hose
Rear Case assy
Wall Mounting Frame
Rubber Plug (Water Tray)
Left Axile Bush
Ring of Bearing
Remote Controller
O-Gasket sub-assy of Bearing
Evaporator Support
Filter Sub-Assy
qty
1
1
1
1
1
1
1
1
1
1
1
1
0
0
1
1
1
3
1
1
2
1
1
1
1
1
1
1
3
1
1
1
1
1
1
1
1
1
2
SM HHD 1-A.1 GB
EXPLODED VIEW & SPARE PART LIST
Exploded view of outdoor unit: YHD009,YHD012
EV- AWAU-YHD012-H11
15.9
SM HHD 1-A.1 GB
15-9
EXPLODED VIEW & SPARE PART LIST
15.10
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
15-10
Spare part list of outdoor Unit: YHD009
Part Code
10000100133
10000500054
30138000460
43130184
42010313
71010003
22413049
0153304811
10333004
02803037P
1501308506
01253073
01703104
01163812
01100200141
01473009
07133978
07135228
071302391
262334332
07100003
0710000301
0171314201P
0130317801
03073151
0123338502
4300040050
00103896G
06123401
Part Description
Electric Box Assy
Electric Box Sub-Assy
Main Board
Reactor
Terminal Board
Wire Clamp
Front Grill
Front Panel Assy
Axial Flow Fan
Chassis Sub-assy
Fan Motor
Top Cover Sub-Assy
Motor Support
Condenser Assy
Condenser Assy
Rear Grill
Electronic Expansion Valve
Electronic Expansion Valve
Cut off Valve
Big Handle
Valve
Valve
Valve Support
Right Side Plate Sub-Assy
4-Way Valve Assy
Clapboard Sub-Assy
Magnet Coil
Compressor and Fittings
Drainage Connecter
qty
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
SM HHD 1-A.1 GB
EXPLODED VIEW & SPARE PART LIST
15.11
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Spare part list of outdoor Unit: YHD012
Part Code
10000100135
10000500056
30138000457
43130184
42010313
71010003
22413043
0153304810
10333004
02803151P
1501308506
26233100
01253073
0170310401
01100200142
01473009
07135228
071302391
262334332
07100003
0710000301
0171314201P
0130317801
03073145
0123338502
4300040050
00103896G
06123401
SM HHD 1-A.1 GB
Part Description
Electric Box Assy
Electric Box Sub-Assy
Main Board
Reactor
Terminal Board
Wire Clamp
Front Grill
Front Panel Assy
Axial Flow Fan
Chassis Sub-assy
Fan Motor
Small Handle
Top Cover Sub-Assy
Motor Support
Condenser Assy
Rear Grill
Electronic Expansion Valve
Cut off Valve
Big Handle
Valve
Valve
Valve Support
Right Side Plate Sub-Assy
4-Way Valve Assy
Clapboard Sub-Assy
Magnet Coil
Compressor and Fittings
Drainage Connecter
qty
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
15-11
EXPLODED VIEW & SPARE PART LIST
Exploded view of outdoor unit: YHD018
EV- AWAU-YHD018-H11
15.12
15-12
SM HHD 1-A.1 GB
EXPLODED VIEW & SPARE PART LIST
15.13
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Spare part list of outdoor Unit: YHD018
Part Code
10335008
1501506402
01705067
01705036
none
4300040045
03073158
01473043
none
3900030901
01163935
none
none
01255005P
01305093P
20113003
10000100093
420101943
26233053
none
01715010P
0713506703
0713506803
0130329201
02803207P
06813401
06123401
none
01535013P
22413045
00105249G
none
01233153
none
SM HHD 1-A.1 GB
Part Description
Axial Flow Fan
Fan Motor
Motor Support Sub-Assy
Motor Support Sub-Assy
Electric box (fireproofing)
Magnet Coil
4-Way Valve Assy
Rear Grill
Left Handle
Temperature Sensor
Condenser Assy
Electronic Expansion Valve
Electric expand valve fitting
Coping
Left Side Plate
Insulated Board (Cover of Electric Box)
Electric Box Assy
Terminal Board
Handle
Capacitor CBB61
Valve Support Assy
Cut off Valve
Cut off Valve
Right Side Plate Assy
Chassis Sub-assy
Drainage hole Cap
Drainage Connecter
Drainage Plug
Front Panel
Front Grill
Compressor and Fittings
Reactor
Clapboard Assy
Capacitor CBB65
qty
1
1
1
1
0
1
1
1
0
1
1
0
0
1
1
1
1
1
1
0
1
1
1
1
1
1
1
0
1
1
1
0
1
0
15-13
EXPLODED VIEW & SPARE PART LIST
Exploded view of outdoor unit: YHD024
EV- AWAU-YHD024-H11
15.14
15-14
SM HHD 1-A.1 GB
EXPLODED VIEW & SPARE PART LIST
15.15
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
Spare part list of outdoor Unit: YHD024
Part Code
22415011
02200200001
none
01305086P
06813401
06123401
02803255P
06813401
07225017
00105249G
4300040045
03073144
0171501201P
07130239
07133157
01365435P
0130504401P
22245003
26235001
2623500101
26115004
01475013
01163917
none
01233164
01175092
01255006P
01705025
15010400000102
1501403402
10335014
01305043P
10000100104
71010003
71010103
420101943
20113027
49010252
30138000401
20113003
3900030901
SM HHD 1-A.1 GB
Part Description
Front Grill
Front Panel Assy
left handle
Front Side Plate
Drainage hole Cap
Drainage Connecter
Chassis Sub-assy
Drainage hole Cap
Gas-liquid Separator Assy
Compressor and Fittings
Magnet Coil
4-Way Valve Assy
Valve Support Sub-Assy
Cut off Valve
Cut off Valve
Baffle(Valve Support)
Right Side Plate
Valve Cover
Big Handle
Big Handle
Wiring Clamp
Rear Grill
Condenser Assy
Reactor
Clapboard Assy
Condenser Support Plate
Coping
Motor Support Sub-Assy
Brushless DC Motor
Fan Motor
Axial Flow Fan
Left Side Plate
Electric Box Assy
Wire Clamp
Wire Clamp
Terminal Board
Electric Box
Radiator
Main Board
Insulated Board (Cover of Electric Box)
Temperature Sensor
qty
1
1
0
1
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
15-15
APPENDIX
APPENDIX
16
SM HHD 1-A.1 GB
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