Heat Controller B-HMH24AS, B-HMC24AS, B-HMH18AS, B-HMC18AS, B-HMH12AS Service Manual

...
Wall Mounted
Mini-Split System
Air Conditioning/Heat Pump
Service Manual
B/A-HMC09AS B/A-HMC12AS, B/A-HMH12AS B/A-HMC18AS, B/A-HMH18AS B/A-HMC24AS, B/A-HMH24AS
Before servicing the unit, read the
Only for authorized service personnel.
®
Functions...................................................................................................................................... 3
Product Specifications................................................................................................................ 5
Dimensions................................................................................................................................... 7
Refrigeration Cycle Diagram..................................................................................................... 10
Wiring Diagram .......................................................................................................................... 12
Operation Details ....................................................................................................................... 15
Display Function........................................................................................................................ 22
Self-diagnosis Function ............................................................................................................ 22
Installation.................................................................................................................................. 23
Operation.................................................................................................................................... 38
Disassembly of the Parts(Indoor Unit)..................................................................................... 40
Cycle Troubleshooting Guide ................................................................................................... 46
Electronic Control Device ......................................................................................................... 56
Schematic Diagram.................................................................................................................... 59
Exploded View and Replacement Parts List............................................................................ 60
- 2 -
Contents
- 3 -
Functions
Indoor Unit
Operation ON/OFF by Remote controller
Sensing the Room Temperature
Room temperature control
Starting Current Control
Time Delay Safety Control
Indoor Fan Speed Control
Operation indication Lamps (LED)
Healthy Dehumidification Mode
Sleep Mode Auto Control
Auto Air Control by the unit electronic control
Chaos Swing
Defrost control(Heating)
Hot-start Control (Heating)
• Room temperature sensor (THERMISTOR)
• Maintains the room temperature in accordance with the Setting Temp.
• Indoor fan is delayed for 5 seconds at the starting.
• Restarting is inhibited for approx. 3 minutes.
• High, Med, Low and Auto
• Intermittent operation of fan at low speed
• Both the indoor and outdoor fan stops during defrosting.
• Hot start will be operated after defrosting ends.
• The indoor fan stops until the indoor pipe temperature will be reached at 28°C(82°F).
• The fan is switched to low(Cooling), med(Heating) speed.
• The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.
• The fan is switched to intermittent or irregular operation.
• The fan speed is automatically switched from high to low speed.
• The louver can be set at the desired position or swing up and down automatically.
--- Lights up in operation
--- Lights up in Sleep Mode
--- Lights up in Timer Mode
--- Lights up in Defrost Mode or Hot Start Mode (only Heating Model)
--- Lights up during compressor running (only Cooling Model)
OUT
DOOR
- 4 -
Healthy Dehumidification Operation Mode.
( )
Remote Controller
Operation ON/OFF
Reset
Operation Mode Selection
Temperature Setting
Timer Selection
Timer Setting
JET COOL
Timer Cancel
Sleep Operation
Chaos Swing
(Cooling
model only)
(Heating
model only)
TEMPERATURE
LOW HIGH
Cooling Operation Mode.( )
Heating Operation Mode.( )
Auto Operation Mode.( )
Fan Operation Mode
Horizontal Airflow Direction Control Button(Option)
Room, Temperature Display
Setting the Time or Timer
Selecting °C / °F
ON OFF
SET
°C / °F
CANCEL
Fan Speed Selection
(Low) (Med) (High) (CHAOS)
: (High: 39°C(98°F) LOW : 12°C(54°F)
Down to 18°C(64°F) Up to 30°C(86°F)
Cooling
: OFF, ON, OFF ON
: Cancel Sleep Mode, Timer ON or Timer OFF
: 1, 2, 3, 4, 5, 6, 7, Off Timer
: Fan Operates without cooling or heating.
Down to 16°C(60°F) Up to 30°C(86°F)
Heating
- 5 -
Product Specifications(Cooling Only)
* Design and Specifications subject to change without prior notice for product improvement.
Items Unit
B/A-HMC09AS B/A-HMC12AS B/A-HMC18AS B/A-HMC24AS Power Supply ø, V, Hz 1, 115V, 60 1, 115, 60 1, 230/208, 60 1, 230/208, 60 Cooling Capacity BTU/h 9,000 12,000 18,000/17,800 23,000/22,600 Input W 940 1,290 1,900/1,870 2,550/2,500 Running Current A 8.5 11.7 8.5/9.0 11.5/12.0 COMP. Locked Rotor AMP. A 46 58 47 67 E.E.R BTU/hW 9.6 9.3 9.5/9.5 9.0/9.0 Air Circulation m3/min(cfm) 7.1(250) 9.4(330) 13(460) 15(530) Moisture Removal l/h(pts/hr) 1.2(2.6) 1.4(3) 2.5(5.3) 3.1(6.6) Noise Level Indoor, High dB(A) 38 41 44 49 (Sound Med dB(A) 36 39 41 45
Pressure, 1m) Low dB(A) 35 37 38 40
Outdoor, Max dB(A) 48 48 55 57
Features Temperature Control Thermistor Thermistor Thermistor Thermistor
Air Deflection 4-way 4-way 4-way 4-way Steps, Fan/Cool 3/3 3/3 3/3 3/3 Airflow Direction Control(up&down) Auto Auto Auto Auto Airflow Direction Control(left&right) Manual Manual Manual Manual Remocon Type Wireless LCD Wireless LCD Wireless LCD Wireless LCD Setting Temperature Range, Cooling Mode 64~86°F 64~86°F 64~86°F 64~86°F Temperature Increment 2°F2°F2°F2°F Auto Operation(electronic control) Yes Yes Yes Yes Self Diagnosis Yes Yes Yes Yes Timer 24hr, On/Off 24hr, On/Off 24hr, On/Off 24hr, On/Off Sleep Operation Yes Yes Yes Yes Healthy Dehumidification Mode Yes Yes Yes Yes
Restart Delay minutes 3 3 3 3 Refrigerant(R-22) Charge g(oz) 630(22.2) 730(25.8) 1,250(44.1) 2,000(70.5) Power cord AWG #: P*mm214:3*2.5 14:3*2.5 14:3*2.5 14:3*2.5 Fuse or breaker Capacity A 15A 20A 20A 25A Connecting Cable AWG #: P*mm216:4*0.75 18:4*0.75 18:4*0.75 18:4*0.75 Connecting Tube Liquid Side mm(in) 6.35(1/4) 6.35(1/4) 6.35(1/4) 9.52(3/8) (ø. Socket Flare) Gas Side mm(in) 12.7(1/2) 12.7(1/2) 15.88(5/8) 15.88(5/8)
Length, std m(ft) 7.62(25) 7.62(25) 7.62(25) 7.62(25) Additional Drain Hose(Outer Dia.) mm(in) 15.5(5/8) 15.5(5/8) 15.5(5/8) 15.5(5/8) Dimensions Indoor mm 802*262*165 888*287*170 1,080*314*181 1,080*314*181 (WxHxD) in 31.6*10.3*6.5 35.0*11.3*6.7 42.5*12.4*7.1 42.5*12.4*7.1
Outdoor mm 770*540*245 770*540*245 870*655*320 870*655*320
in 30.3*21.3*9.6 30.3*21.3*9.6 34.3*25.8*12.6 34.3*25.8*12.6
Net Weight Indoor kg(lbs) 7(15.4) 9.5(20.9) 13(28.7) 13(28.7)
Outdoor kg(lbs) 32(70.5) 32(70.5) 61(134.5) 62(136.7)
- 6 -
Product Specifications(Cooling & Heating)
Items Unit B/A-HMH12AS B/A-HMH18AS B/A-HMH24AS Power Supply ø, V, Hz 1, 115, 60 1, 230/208, 60 1, 230/208, 60 Cooling Capacity BTU/h 12,000 18,000/17,800 23,000/22,600 Heating Capacity BTU/h 12,000 19,000/18,700 23,000/22,600 Input Cooling W 1,290 1,900/1,870 2,550/2,500
Heating W 1,290 1,900/1,870 2,550/2,500
Running Current Cooling A 11.7 8.5/9.0 11.5/12.0
Heating A 11.7 8.5/9.0 11.5/12.0 COMP. Locked Cooling A 58 42 67 Rotor AMP. Heating A 58 42 67 E.E.R BTU/hW 9.3 9.5/9.5 9.0/9.0 C.O.P 2.75 2.9/2.9 2.6/2.6 Air Circulation m3/min(cfm) 9.4(330) 13(460) 15(530) Moisture Removal l/h(pts/hr) 1.4(3) 2.5(5) 3.1(6.6) Noise Level Indoor, High dB(A) 41 44 47 (Sound Med dB(A) 39 41 44
Pressure, 1m) Low dB(A) 37 38 40
Outdoor, Max dB(A) 48 55 58 Features Temperature Control Thermistor Thermistor Thermistor
Air Deflection 4-way 4-way 4-way
Steps, Fan/Cool/Heat 3/3/3 3/3/3 3/3/3
Airflow Direction Control(up&down) Auto Auto Auto
Airflow Direction Control(left&right) Manual Manual Manual
Remocon Type Wireless LCD Wireless LCD Wireless LCD
Setting Temperature Range, Cooling Mode
64~86°F 64~86°F 64~86°F Heating Mode 60~86°F 60~86°F 60~86°F Temperature Increment 2°F2°F2°F Auto Operation(electronic control) Yes Yes Yes Self Diagnosis Yes Yes Yes Timer 24hr, On/Off 24hr, On/Off 24hr, On/Off Sleep Operation Yes Yes Yes Healthy Dehumidification Mode Yes Yes Yes Restart Delay minutes 3 3 3 Defrost Control Yes Yes Yes Hot Start Yes Yes Yes
Refrigerant(R-22) Charge g(oz) 840(29.6) 1350(47.6) 1900(67.0) Power cord AWG #: P*mm
2
14:3*2.5 14:3*2.5 14:3*2.5
Fuse or breaker Capacity A 20A 20A 25A Connecting Cable AWG #: P*mm
2
18:4*0.75 18:4*0.75 18:4*0.75 Connecting Tube Liquid Side mm(in) 6.35(1/4) 6.35(1/4) 9.52(3/8) (ø. Socket Flare) Gas Side mm(in) 12.7(1/2) 15.88(5/8) 15.88(5/8)
Length, std m(ft) 7.62(25) 7.62(25) 7.62(25) Additional Drain Hose(Outer Dia.) mm(in) 15.5(5/8) 15.5(5/8) 15.5(5/8) Dimensions Indoor mm 888*287*170 1080*314*181 108*314*181 (WxHxD) in 35.0*11.3*6.7 42.5*12.4*7.1 42.5*12.4*7.1
Outdoor mm 770*540*245 870*655*320 870*655*320
in 30.3*21.3*9.6 34.3*25.8*12.6 34.3*25.8*12.6
Net Weight Indoor kg(lbs) 9.5(20.9) 13(28.7) 13(28.7)
Outdoor kg(lbs) 33(72.8) 62(136.7) 63(138.9)
* Design and Specifications subject to change without prior notice for product improvement.
(1) Indoor Unit
- 7 -
Dimensions
D
W
H
Tubing hole cover
Tubing hole cover
Installation plate
MODEL
9K 12K 18K, 24K
DIM
W mm(inch) 802(31.6") 888(35.0") 1,080(42.5")
H mm(inch) 262(10.3") 287(11.3") 314(12.4") D mm(inch) 165(6.5") 170(6.7") 181(7.1")
- 8 -
(2) Outdoor Unit
1. 9K, 12K
W
L2
L3
L1
D
H
L4
L5
Gas side
(3-way valve)
Liquid side
(2-way valve)
MODEL
9K, 12K
DIM unit
W mm(inch) 770(30.3)
H mm(inch) 540(21.3)
D mm(inch) 245(9.6) L1 mm(inch) 287(11.3) L2 mm(inch) 64(2.5) L3 mm(inch) 518(20.4) L4 mm(inch) 10(0.4) L5 mm(inch) 100(3.9)
- 9 -
W
L6 L5 L7 L8
D
L1
L2
L9L10
L3L4
H
Gas side 3-way valve
Liquid side 3-way valve
2. 18K, 24K
MODEL
18K, 24K
DIM
W mm(inch) 870(34.3)
H mm(inch) 655(25.8)
D mm(inch) 320(12.6) L1 mm(inch) 370(14.6) L2 mm(inch) 25(1.0) L3 mm(inch) 630(24.8) L4 mm(inch) 25(1.0) L5 mm(inch) 546(21.5) L6 mm(inch) 162(6.4) L7 mm(inch) 162(6.4) L8 mm(inch) 54(2.1) L9 mm(inch) 74.5(2.9)
L10 mm(inch) 79(3.1)
- 10 -
INDOOR UNIT
HEAT EXCHANGER (EVAPORATOR)
HEAT EXCHANGER (CONDENSER)
COMPRESSOR
GAS SIDE
CAPILLARY TUBE
LIQUID SIDE
OUTDOOR UNIT
• Cooling Only Models
MODEL
9K, 12K
(Cooling Only)
18K
(Cooling Only)
24K
(Cooling Only)
Pipe size(Diameter:ø) Piping length Elevation
Gas Liquid Rated Max Rated Max
1/2" 1/4" 7.62m(25ft) 15m(50ft) 5m(16ft) 8m(26ft)
5/8" 1/4" 7.62m(25ft) 15m(50ft) 5m(16ft) 8m(26ft)
5/8" 3/8" 7.62m(25ft) 15m(50ft) 5m(16ft) 8m(26ft)
Refrigeration Cycle Diagram
For installation over rated, *a proper quantity of refrigerant should be added for each 3.3ft(1m).
Ex) 18K: When installed at a distance of 50ft(15m),
10.6Oz(295g) of refrigerant should be added. (50-25) 1.4 3.3 = 10.6 Oz (295g) of refrigerant to add
Unit precharged for 25ft. line sets.
a proper quantity of refrigerant
9k, 12k 0.7 Oz (20g)
18k, 24k 1.4 Oz (40g)
- 11 -
INDOOR UNIT
HEAT EXCHANGER (EVAPORATOR)
HEAT EXCHANGER (CONDENSER)
REVERSING VALVE
COMPRESSOR
COOLING HEATING
GAS SIDE
CAPILLARY TUBE
CHECK VALVE
LIQUID SIDE
OUTDOOR UNIT
• Cooling & Heating Models
MODEL
9K, 12K
(Cooling & Heating)
18K
(Cooling & Heating)
24K
(Cooling & Heating)
Pipe size(Diameter:ø) Piping length Elevation
Gas Liquid Rated Max Rated Max
1/2" 1/4" 7.62m(25ft) 15m(50ft) 5m(16ft) 8m(26ft)
5/8" 1/4" 7.62m(25ft) 15m(50ft) 5m(16ft) 8m(26ft)
5/8" 3/8" 7.62m(25ft) 15m(50ft) 5m(16ft) 8m(26ft)
For installation over rated, *a proper quantity of refrigerant should be added for each 3.3ft (1m).
Ex) 18K: When installed at a distance of 50ft(15m),
10.6Oz(295g) of refrigerant should be added. (50-25) 1.4 3.3 = 10.6 Oz (295g) of refrigerant to add
Unit precharged for 25ft. line sets.
a proper quantity of refrigerant
9k, 12k 0.7 Oz (20g)
18k, 24k 1.4 Oz (40g)
- 12 -
Wiring Diagram
(1) Indoor Unit
1. 9K, 12K, 18K, 24K(Cooling Only Models, Cooling & Heating Models)
4 3 2 1
BLDC MOTOR
STEP MOTOR
MAIN P.C.B
INDOOR WIRING DIAGRAM
TO OUTDOOR UNIT
DISPLAY P.C.B
(R
O
O
M
)
(PIPE)
TH
E
R
M
ISTO
R
C
N
-U
P
/D
O
W
N
3854AR7074A
C
N
-M
O
TO
R
PILLAR
TER
M
IN
AL
C
N
-D
C
/D
C
C
N
-D
ISP
C
N
-TH
BL BK BR RD
- 13 -
(2) Outdoor Unit
• Cooling Only Models
1. 9K, 12K
3. 24K
2. 18K
BL BL
BK BK
FUSE
3.15A
FUSE
2.5A
ZNR
CN-DC/DC
RY-COMP
34
MAIN P.C.B
YL
MOTOR
RD
BL
BR
BL
RD
BR
BL
TERMINAL BLOCK
TO INDOOR UNIT
POWER
INPUT
3854A30077ZOUTDOOR WIRING DIAGRAM
RD
BR BK BL
G
H
F
C
CAPACITOR
CN-TRANS
TRANSFORMER
T/B 1
CN-POWER
BR
BR YL
O.L.P
COMP.
S
RC
(N)(L)
OR(BR)
YL
C
H
CAPACITOR
YLBR
S
C
R
COMP.
MOTOR
F
O.L.P
BR
MAIN P.C.B
BL
T/B 1
BK
BR
BR
BL
1
0
BR
8 6
BL
4 2
BL
RD
RY-COMP
34
ZNR
CN-POWER
BR
BL
TERMINAL BLOCK
FUSE
3.15A
CN-DC/DC
RD BR BK BL
2.5A
FUSE
TO INDOOR UNIT
3854AR7077JOUTDOOR WIRING DIAGRAM
BL
BK
CN-TRANS
BK
POWER
TRANSFORMER
G
INPUT
MAIN P.C.B
OR(BR)
YL
MOTOR
F
C
H
CAPACITOR
YLBR
S
C
R
COMP.
BL
T/B 1
BK
BR
BR
1
0
BR
8 6
BL
4 2
BL
RD
RY-COMP
34
ZNR
CN-POWER
BR
BL
TERMINAL BLOCK
FUSE
3.15A
CN-DC/DC
RD BR BK BL
2.5A
FUSE
TO INDOOR UNIT
3854AR7077LOUTDOOR WIRING DIAGRAM
BL BL
BK
CN-TRANS
BK
POWER
TRANSFORMER
G
INPUT
- 14 -
Cooling & Heating Models
1. 9K, 12K
2. 18K, 24K
4WAY-
VALVE
BK
RD
RY-4WAY
BL
BL BK BK
FUSE
3.15A
RY-FAN
RY-HEATER
ZNR
CN-DC/DC
RY-COMP
34
MAIN P.C.B
BK
YL
MOTOR
RD
BL
RD
BR
BL
RDBR
O.L.P
BL
TERMINAL BLOCK
TO INDOOR UNIT
POWER
INPUT
3854A30077WOUTDOOR WIRING DIAGRAM
RD BR BK BL
WHWH
G
WH
WH
H
F
C
CAPACITOR
COMP.
R
C
YLBR
S
CRANK CASE HEATER
CN
-
4WAY
CN-TRANS
TRANSFORMER
CN
-
FAN
T/B 3
T/B 1
T/B 2
T/B 4
CN-POWER
FUSE
2.5A
(N)(L)
BK
4WAY­VALVE
OR(BR)
YL
C
H
CAPACITOR
YLBR
S
C
R
COMP.
MOTOR
F
BK
BK
T/B 3
BL
CRANK CASE HEATER
1
0
T/B 1 T/B 2
WH
MAIN P.C.B
RY-4WAY
RD
4WAY
­CN
RD
RY-FAN
BK
WHWH WH
T/B 4
BR
8
BR
6
BL
4 2
BL
RY-HEATER FAN
­CN
RY-COMP
34
BR
TERMINAL BLOCK
ZNR
FUSE
3.15A
CN-POWER
BL
2.5A
FUSE
CN-DC/DC
RD BR BK BL
BL BL
BK
CN-TRANS
BK
TRANSFORMER
G
RD
TO INDOOR UNIT
3854AR7077MOUTDOOR WIRING DIAGRAM
POWER
INPUT
(1) The function of main control
1. Time delay Safety Control
3min.; The compressor operation is delayed for 3 minutes to balance the pressure of cycle. (Protection of compressor)
5sec.;
The indoor fan is delayed for 5 seconds, when operating initially, to prevent noises occurred by the vertical louver and wind.
2min.; The reversing valve is delayed for 2 minutes to prevent the refrigerant-gas for abnormal noise when the heating operation is OFF or switched to the other operation mode while compressor is off. While compressor is running, it takes 3~5 seconds to switch.
2. Chaos Swing Mode
By the Chaos Swing key input, the upper/lower vane automatically operates with the Chaos Swing or they are
fixed to the desired direction.
While in Chaos Swing mode, the angles of cooling and heating cycle operations are different.
- 15 -
Operation Details
INTAKE AIR TEMP.
SETTING TEMP. +1°F (Compressor ON)
SETTING TEMP. -1°F (Compressor OFF)
Setting fan speed
Setting fan speed
More than 3 minutes
More than 3 minutes
Setting fan speed
COMPRESSOR ON OFF ON OFF ON
INDOOR FAN SPEED Low Low
Protection of the indoor heat exchanger from frosting
Compressor and outdoor fan stop when indoor pipe temperature is below 0°C(32°F) and restart at the pipe temperature is above 7°C(45°F).
3. Cooling Operation Mode
When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote control and the operation diagram is shown below.
CLOSED
OPEN
< Cooling Mode >
8°
CLOSED
OPEN
< Heating Mode >
8°
4. Auto Operation (Electronic control mode)
The operation procedure is shown below. (Cooling & Heating Model)
If initial mode is decided, that mode is continued without the room temperature changing.
Auto Operation for Cooling
- 16 -
Press Start/Stop Button
Select Auto Operation Mode
Check the Room temperature
Operation mode Indoor fan speed are decided automatically by the unit electronic control. Setting temperature
Intake-air
temperature
Operation Mode
Over below 70°F76
°
F
Soft Dry
below 70°F
Heating
Over 76°F
Cooling
~
INTAKE AIR TEMP.
SETTING TEMP. +1°F (Compressor OFF)
SETTING TEMP. -1°F (Compressor ON)
COMPRESSOR ON OFF ON OFF
INDOOR FAN SPEED The electronic control operation
Intake-air Temperature Setting Temperature
Over 78°F77°F Over 76°F~below 78°F Intake air -1°C Over 72°F~below 76°F Intake air -0.5°C Over 68°F~below 72°F Intake air temperature
below 64°F64°F
Over 64°F~below 86°F Electronic control
below 64°F64°F
over 86°F86°F
Operation Condition
When Auto Operation initial start
Controlled by the electronic control
In this mode, when pressing the vertical air direction control button, vertical louver swings up and down automatically.
Fan Speed Air Direction Control
When pressing room temperature setting button during Auto Operation
Auto Operation for Dehumidification(only Heating Model)
The Setting temperature will be same that of the auto operation for cooling.
- Compressor ON temperature; Setting temperature +2°F
- Compressor OFF temperature; Setting temperture -1°F
Auto Operation for Heating(only Heating Model)
- Compressor ON temperature; Setting temperature
- Compressor OFF temperature; Setting temperature +6°F
- 17 -
Intake-air temp. below 68°F Over 68°F~below 70°F over 86°F
Setting temp. 68°F Intake air temperature +1°F86°F
Vertical louver auto operation
: During Auto Operation, pressing the chaos swing button makes the horizon­tal louvers swing up and down automatically. If you want to stop auto-swing, press chaos swing button again.
5. Healthy Dehumidification
When the dehumidification operation input by the remote control is received, the intake air temperature is detected and the setting temp is automatically set according to the intake air temperature.
26°C Intake Air Temp 25°C 24°C Intake Intake Air Temp<26°C Intake Air Temp-1°C 18°C Intake Intake Air Temp<24°C Intake Air Temp-0.5°C Intake Air Temp<18°C 18°C
While in compressor off, the indoor fan repeats low airflow speed and pause.
While the intake air temp is between compressor on temp. and compressor off temp., 10-min dehumidification
operation and 4-min compressor off repeat. Compressor ON Temp. Setting Temp+0.5°C Compressor OFF Temp. ➲ Setting Temp-0.5°C
In 10-min dehumidification operation, the indoor fan operates with the low airflow speed.
- 18 -
- 19 -
6. Heating Operation Mode(only Heating Model)
The unit will operate according to the setting conditions by the remote controller. The operation diagram is shown below.
INTAKE AIR TEMP.
SETTING TEMP. +6
°
F
(Compressor OFF)
SETTING TEMP. (Compressor ON)
Selecting fan speed
Selecting fan speed
A
B
A
minimum
10sec.
minimum
1 min.
minimum
10sec.
COMPRESSOR ON OFF ON OFF
A point; While the indoor pipe temperature is higher than 95°F, indoor fan operates at low speed. When the indoor pipe temperature becomes lower than 95°F, indoor fan stops.
B point; When the indoor pipe temperature is higher than 38°C(100°F), fan operates at selected fan speed.
INDOOR FAN SPEED
Low
OFF
Low Low OFF
OFF OFFLOW
ON
Selecting fan speed
INDOOR PIPE
TEMP.
82°F
78°F
1min
INDOOR FAN SPEED
COMPRESSOR
Hot-Start Control
The indoor fan stops until the indoor pipe temperature will be reached at 82°F.
During heating operation, if indoor pipe temperature falls below 78°F fan stops.
The operation diagram is shown below.
7. Cooling or Heating Mode with Sleep Mode Auto Control
When selecting the Cooling( ) or the Heating( ) combined with the Sleep Mode Auto Control( ), the operation diagram is as following.
Cooling Mode with the Sleep Mode
The setting temperature will be automatically raised by 2°F 30 minutes later and by 4
°
F 1 hour later.
The operation will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.
Heating Mode with the Sleep Mode(only Heating Model)
The operation will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.
- 20 -
INTAKE AIR TEMP.
SETTING TEMP. +1°F (Compressor ON)
SETTING TEMP. -1°F (Compressor OFF)
30 minutes
30 minutes
More than
3 minutes
2°F
2°F
More than
3 minutes
COMPRESSOR ON OFF ON OFF ON
INDOOR FAN SPEED Low Low Low Low Low
SETTING TEMP. +6
°
F
(Compressor OFF)
SETTING TEMP. (Compressor ON)
COMPRESSOR ON OFF ON OFF ON OFF
INDOOR FAN SPEED Med Low or OFF Med Low or OFF Med Low or OFF
INTAKE AIR TEMP.
More than
3 minutes
More than
3 minutes
More than 3 minutes
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8. Forced Operation
Operation procedures when the remote control can't be used. Open the front panel upward and move the Slide Switch to the Forced Operation position. If you want to stop operation, move the Slide Switch to the Auto Restart or the Remote Control position. In case the power comes on again after power failure on the Forced Operation position, the operating conditions are automatically set as follows: During Forced Operation, the initial mode continues.
9. AUTO RESTART
In case the power comes on again after a power failure, Auto Restarting Operation is the function to operate pro­cedures automatically to the previous operating condi­tions. If you want to use this operation, Open the front panel upward and move the slide switch to the Auto Restart position. If you do not want to use this operation, move the Slide Switch to the Remote Control position.
When you are out for a while, put the Slide Switch
on the Remote Control.
Cooling Heat pump Model
Model
Room Temp. 24°C(76°F)
21°C(70°F) Room Temp. < 24°C(76°F)
Room Temp. < 21°C(70°F)
Operating mode Cooling Cooling Healthy Dehumidification Heating
Indoor FAN Speed
High High
Healthy Dehumidification Rule
High
Setting Temperature
22°C(72°F) 22°C(72°F) 23°C(74°F) 24°C(76°F)
Open the front panel upward
Slide Switch
Slide Switch
FORCED OPERATION
AUTO RESTART
REMOTE CONTROL
Slide Switch
Open the front panel upward
Slide Switch
FORCED OPERATION
AUTO RESTART
REMOTE CONTROL
Cooling, Soft Dry, Fan, Heating
Sleep Mode
Timer Mode
Hot-start, Defrost
Compressor ON
BUZZER SOUND
Power Input or Reset : One short beep.
When Operation Stop Button is pressed : One long beep.
When Remote Controller Buttons except for Operation Stop are pressed : Two short beep.
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Display Function
Self-diagnosis Function
Operation Indicator
Sleep timer Indicator
Timer Indicator
Defrost Indicator or Hot start Indicator
OUT
DOOR
: Cooling & Heating Model only
: only Cooling Model
CODE NO. DIAGNOSIS Operation Indicator LED Blinks Unit Operation
Once Still Operation Outdoor pipe thermistor Short/Open Twice Outdoor Unit Off
5 times Stop
Indoor room temperature thermistor or pipe temperature thermistor Short/Open
Communication failure between indoor and outdoor
LED blinks as many times as code No. (0.5 second ON/0.5 second OFF) with 3 seconds interval.
While the unit is off, no indication displays.
If more than one code occurs simultaneously, bigger code No. is displayed.
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