Heat Controller Energy Knight B/A-HMC09AS User 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
Beforeservicingtheunit,readthe
“safetyprecautions”inthismanual.
Onlyforauthorizedservicepersonnel.
®

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*mm214:3*2.5 14:3*2.5 14:3*2.5
Fuse or breaker Capacity A 20A 20A 25A
Connecting Cable AWG #: P*mm218:4*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
DW
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
WL2
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
(ROOM)
(PIPE)
THERMISTOR
CN-UP/DOWN
3854AR7074A
CN-MOTOR
PILLAR
TERMINAL
CN-DC/DC
CN-DISP CN-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)
BL
BL
BK
BK
FUSE
3.15A
FUSE
2.5A
ZNR
CN-DC/DC
RY-COMP
34
MAIN P.C.B
BK T/B 1
MOTOR
YL
OR(BR)
BR
BR
BR
BR
RD
BL
BL
18
6
4
2
0
BL
TERMINAL
BLOCK
TO INDOOR UNIT POWER
INPUT
3854AR7077JOUTDOOR WIRING DIAGRAM
RD BR BK BL
G
H
F
C
CAPACITOR
COMP.
RC
YLBR
BR
O.L.P
BL
S
CN-TRANS
TRANSFORMER
CN-POWER
BL
BL
BK
BK
FUSE
3.15A
FUSE
2.5A
ZNR
CN-DC/DC
RY-COMP
34
MAIN P.C.B
BK T/B 1
MOTOR
YL
OR(BR)
BR
BR
BR
BR
RD
BL
BL
18
6
4
2
0
BL
TERMINAL
BLOCK
TO INDOOR UNIT POWER
INPUT
3854AR7077LOUTDOOR WIRING DIAGRAM
RD BR BK BL
G
H
F
C
CAPACITOR
COMP.
RC
YLBR
BL
S
CN-TRANS
TRANSFORMER
CN-POWER

- 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.
RC
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)
4WAY-
VALVE
BK RD RY-4WAY
BL
BL
BK
BK
FUSE
3.15A
FUSE
2.5A
RY-FAN
RY-HEATER ZNR
CN-DC/DC
RY-COMP
34
MAIN P.C.B
BK
BK
MOTOR
YL
OR(BR) RD
BK
BR
BR
BR
BL
RD
BL
BL
18
6
4
2
0
BL
TERMINAL
BLOCK
TO INDOOR UNIT POWER
INPUT
3854AR7077MOUTDOOR WIRING DIAGRAM
RD BR BK BL
WHWH
G
WH
WH
H
F
C
CAPACITOR
COMP.
RC
YLBR
S
CRANK CASE
HEATER
CN
-
4WAY
CN-TRANS
TRANSFORMER
CN
-
FAN
T/B 1
T/B 3 T/B 4
T/B 2
CN-POWER

(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 horizon-
tal 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
ABA
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