CM1972 (3-room multi unit)
CM2472 (4-room multi unit)
CM3172 (4-room multi unit)
CLM1972 (3-room multi unit)
CLM2472 (4-room multi unit)
CLM3172 (4-room multi unit)
< Applicable Multi-Outdoor Units >
TECHNICAL & SERVICE MANUAL
INDOOR UNIT : KMS0772
KMS0972
KMS1272
KMS1872
KMS2472
DC INVERTER MULTI-SYSTEM AIR CONDITIONER
FILE NO.
Destination: North America
Wall Mounted Type Indoor Unit
KMS0772
KMS0972
KMS1272
KMS1872
KMS2472
REFERENCE NO. SM700665-02
Product Code No.
1 852 099 87
1 852 099 88
1 852 099 89
1 852 099 90
1 852 099 91
Capacity
7,500BTU / h
9,000BTU / h
11,900BTU / h
17,500BTU / h
24,200BTU / h
Indoor Model No.
KMS0772
KMS0972
KMS1272
KMS1872
KMS2472
NOTE
AIR
CO
N
DITIONER
A
IR
C
O
N
DITIO
NER
IMPORTANT
These air conditioners employ new
refrigerant R410A.
Pay special attention when
servicing the unit.
For details about the combinations, refer to
Unit Combination Table in the
T. Service
Manual
for the Multi Outdoor Units.
When Wiring
ELECTRICAL SHOCK CAN CAUSE
SEVERE PERSONAL INJURY OR DEATH.
ONLY A QUALIFIED, EXPERIENCED
ELECTRICIAN SHOULD ATTEMPT TO
WIRE THIS SYSTEM.
SPECIAL PRECAUTIONS
This symbol refers to a hazard
or unsafe practice which can
result in severe personal
injury or death.
This symbol refers to a hazard
or unsafe practice which can
result in personal injury or
product or property damage.
CAUTION
CAUTION
WARNING
WARNING
Important!
Please Read Before Starting
This air conditioning system meets strict safety and operating
standards. As the installer or service person, it is an
important part of your job to install or service the system so it
operates safely and efficiently.
For safe installation and trouble-free operation, you must:
Carefully read this instruction booklet before beginning.
Follow each installation or repair step exactly as shown.
Observe all local, state, and national electrical codes.
Pay close attention to all warning and caution notices given
in this manual.
If Necessary, Get Help
These instructions are all you need for most installation
sites and maintenance conditions. If you require help for
a special problem, contact our sales/service outlet or
your certified dealer for additional instructions.
In Case of Improper Installation
The manufacturer shall in no way be responsible for
improper installation or maintenance service, including
failure to follow the instructions in this document.
Do not supply power to the unit until all wiring and tubing
are completed or reconnected and checked.
Highly dangerous electrical voltages are used in this
system. Carefully refer to the wiring diagram and these
instructions when wiring. Improper connections and
inadequate grounding can cause accidental injury or death.
Ground the unit following local electrical codes.
Connect all wiring tightly. Loose wiring may cause
overheating at connection points and a possible fire
hazard.
When Transporting
Be careful when picking up and moving the indoor and
outdoor units. Get a partner to help, and bend your knees
when lifting to reduce strain on your back. Sharp edges or thin
aluminum fins on the air conditioner can cut your fingers.
When Installing
In a Ceiling or Wall
Make sure the ceiling/wall is strong enough to hold the unit’s
weight. It may be necessary to construct a strong wood or
metal frame to provide added support.
In a Room
Properly insulate any tubing run inside a room to prevent
"sweating" that can cause dripping and water damage to walls
and floors.
In Moist or Uneven Locations
Use a raised concrete pad or concrete blocks to provide a
solid, level foundation for the outdoor unit. This prevents
water damage and abnormal vibration.
In an Area with High Winds
Securely anchor the outdoor unit down with bolts and a metal
frame. Provide a suitable air baffle.
In a Snowy Area (for Heat Pump-type Systems)
Install the outdoor unit on a raised platform that is higher than
drifting snow. Provide snow vents.
When Connecting Refrigerant Tubing
Use the flare method for connecting tubing.
Apply refrigerant lubricant to the matching surfaces of the
flare and union tubes before connecting them, then tighten
the nut with a torque wrench for a leak-free connection.
Check carefully for leaks before starting the test run.
When Servicing
Turn the power off at the main power box (mains) before
opening the unit to check or repair electrical parts and
wiring.
Keep your fingers and clothing away from any moving parts.
Clean up the site after you finish, remembering to check
that no metal scraps or bits of wiring have been left inside
the unit being serviced.
Others
Ventilate any enclosed areas when installing or testing the
refrigeration system. Escaped refrigerant gas, on contact
with fire or heat, can produce dangerously toxic gas.
Confirm upon completing installation that no refrigerant gas
is leaking. If escaped gas comes in contact with a stove,
gas water heater, electric room heater or other heat source,
it can produce dangerously toxic gas.
2
Table of Contents
APPLICABLE MULTI-OUTDOOR UNITS
1. OPERATING RANGE
2. SPECIFICATIONS
2-1. Unit Specifications
2-2. Major Component Specifications
2-3. Other Component Specifications
3. DIMENSIONAL DATA
4. REFRIGERANT FLOW DIAGRAM
4-1. Refrigerant Flow Diagram
5. PERFORMANCE DATA
5-1. Air Throw Distance Charts
6. ELECTRICAL DATA
6-1. Electric Wiring Diagrams
7. FUNCTIONS
7-1. Operation Functions
7-2. Protective Functions
8. TROUBLESHOOTING
8-1. Precautions before Performing Inspection or Repair
8-2. Method of Self-Diagnostics
8-3. Checking the Indoor and Outdoor Units
8-4. Trouble Diagnosis of Fan Motor
8-5. Noise Malfunction and Electromagnetic Interference
APPENDIX A INSTRUCTION MANUAL
APPENDIX B INSTALLATION INSTRUCTIONS
4
5
6
16
21
22
24
25
30
32
34
35
35
38
39
40
A-1
A-2
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Page
3
APPLICABLE MULTI-OUTDOOR UNITS
KMS0772
KMS0972
KMS1272
KMS1872
KMS2472
3-Room
CM1972
YES
YES
YES
YES
NO
4-Room
CM2472
YES
YES
YES
YES
YES
4-Room
CM3172
YES
YES
YES
YES
YES
3-Room
CLM1972
YES
YES
YES
YES
NO
4-Room
CLM2472
YES
YES
YES
YES
YES
4-Room
CLM3172
YES
YES
YES
YES
YES
Indoor Unit
Multi-Outdoor Unit
4
95 °F D.B. / 71 °F W.B.
67 °F D.B. / 57 °F W.B.
1. OPERATING RANGE
Maximum
Minimum
115 °F D.B.
67 °F D.B.
Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp.
Cooling
Combination with cooling outdoor unit CM1972, CM2472 or CM3172
95 °F D.B. / 71 °F W.B.
67 °F D.B. / 57 °F W.B.
Maximum
Minimum
115 °F D.B.
*1
Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp.
Cooling
Combination with low ambient cooling outdoor unit CLM1972, CLM2472 or CM3172
*1 32 °F D.B.: When combined with KMS1872 or KMS2472
23 °F D.B.: When combined with KMS0772, KMS0972 or KMS1272
5
2. SPECIFICATIONS
2-1. Unit Specifications
Indoor Unit KMS0772
6
Narrow tube
Wide tube
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
19.8
(9.0)
24.3
(11.0)
(900)
10-1/32
(255)
2.8
(0.08)
Weight
Shipping Volume
11-7/32
(285)
32-15/32
(825)
(189)
13-25/32
(350)
35-7/16
Net
Ib. (kg)
Ib. (kg)
Shipping
Width
Depth
inch(mm)
inch(mm)
inch(mm)
Unit Dimensions
Package Dimensions
Height
Height
Width
Optional / Air Clean Filter
Air Circulation (High)
ft3/min (m3/h)
W
Power Input
V
A
Refrigerant Tubing Kit / Accessories
Running Amperes
Pints/h
Moisture Removal (High)
187 to 253
Electrical Rating
Available Voltage Range
2.77
Cooling
Indoor
Fan Speeds
Features
Control / Temperature Control
Timer
Control Unit
Airflow Direction (Indoor)
Horizontal
Vertical
3/8 (9.52)
inch (mm)
Refrigerant Tubing Connections
R410A
(*Qt = Quiet mode)
dB-A
Indoor : Hi/Me/Lo/Qt*
33 / 30 / 27 / 23
Auto
Washable, Anti-Mold
Air Filter
Refrigerant
cu.ft (m3)
Operation Sound
Refrigerant
Tube Diameter
inch(mm)
inch(mm)
inch(mm)
Dimensions & Weight
Depth
inch (mm)
< 230V >
Wall Mounted Type Indoor Unit
Type
Performance
230V Single-Phase 60Hz
Voltage Rating
Cooling
7-7/16
Capacity
Manual
Microprocessor / I.C. Thermister
BTU/h
kW
1/4 (6.35)
Flare Type
7,500
2.20
Auto and 3 steps
24-Hour ON or OFF Timer, 1-Hour OFF Timer
Wireless Remote Control Unit
25
241 (410)
0.11
7
Indoor Unit KMS0772
Narrow tube
Wide tube
2.20
Auto and 3 steps
24-Hour ON or OFF Timer Control
Wireless Remote Control Unit
25
241 (410)
0.12
7-7/16
Capacity
Manual
Microprocessor / I.C. Thermister
BTU/h
kW
1/4 (6.35)
Flare Type
7,500
< 208V >
Wall Mounted Type Indoor Unit
Type
Performance
208V Single-Phase 60Hz
Voltage Rating
Cooling
cu.ft (m3)
Operation Sound
Refrigerant
Tube Diameter
inch(mm)
inch(mm)
inch(mm)
Dimensions & Weight
Depth
inch (mm)
Auto
Washable, Anti-Mold
Air Filter
Refrigerant
3/8 (9.52)
inch (mm)
Refrigerant Tubing Connections
R410A
(*Qt = Quiet mode)
dB-A
Indoor : Hi/Me/Lo/Qt*
33 / 30 / 27 / 23
Airflow Direction (Indoor)
Horizontal
Vertical
Indoor
Fan Speeds
Features
Control / Temperature Control
Timer
Control Unit
Moisture Removal (High)
187 to 253
Electrical Rating
Available Voltage Range
2.77
Cooling
Optional / Air Clean Filter
Air Circulation (High)
ft3/min (m3/h)
W
Power Input
V
A
Refrigerant Tubing Kit / Accessories
Running Amperes
Pints/h
Unit Dimensions
Package Dimensions
Height
Height
Width
Width
Depth
inch(mm)
inch(mm)
inch(mm)
Net
Ib. (kg)
Ib. (kg)
Shipping
Weight
Shipping Volume
11-7/32
(285)
32-15/32
(825)
(189)
13-25/32
(350)
35-7/16
(900)
10-1/32
(255)
2.82
(0.08)
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
19.8
(9.0)
24.3
(11.0)
Indoor Unit KMS0972
Narrow tube
Wide tube
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
19.8
(9.0)
24.3
(11.0)
(900)
10-1/32
(255)
2.82
(0.08)
Weight
Shipping Volume
11-7/32
(285)
32-15/32
(825)
(189)
13-25/32
(350)
35-7/16
Net
Ib. (kg)
Ib. (kg)
Shipping
Width
Depth
inch(mm)
inch(mm)
inch(mm)
Unit Dimensions
Package Dimensions
Height
Height
Width
Optional / Air Clean Filter
Air Circulation (High)
ft3/min (m3/h)
W
Power Input
V
A
Refrigerant Tubing Kit / Accessories
Running Amperes
Pints/h
Moisture Removal (High)
187 to 253
Electrical Rating
Available Voltage Range
3.4
Cooling
Indoor
Fan Speeds
Features
Control / Temperature Control
Timer
Control Unit
Airflow Direction (Indoor)
Horizontal
Vertical
3/8 (9.52)
inch (mm)
Refrigerant Tubing Connections
R410A
(*Qt = Quiet mode)
dB-A
Indoor : Hi/Me/Lo/Qt*
34 / 31 / 28 / 23
Auto
Washable, Anti-Mold
Air Filter
Refrigerant
cu.ft (m3)
Operation Sound
Refrigerant
Tube Diameter
inch(mm)
inch(mm)
inch(mm)
Dimensions & Weight
Depth
inch (mm)
< 230V >
Wall Mounted Type Indoor Unit
Type
Performance
230V Single-Phase 60Hz
Voltage Rating
Cooling
7-7/16
Capacity
Manual
Microprocessor / I.C. Thermister
BTU/h
kW
1/4 (6.35)
Flare Type
9,000
2.65
Auto and 3 steps
24-Hour ON or OFF Timer Control
Wireless Remote Control Unit
35
259 (440)
0.15
8
9
Indoor Unit KMS0972
Narrow tube
Wide tube
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
19.8
(9.0)
24.3
(11.0)
(900)
10-1/32
(255)
2.82
(0.08)
Weight
Shipping Volume
11-7/32
(285)
32-15/32
(825)
(189)
13-25/32
(350)
35-7/16
Net
Ib. (kg)
Ib. (kg)
Shipping
Width
Depth
inch(mm)
inch(mm)
inch(mm)
Unit Dimensions
Package Dimensions
Height
Height
Width
Optional / Air Clean Filter
Air Circulation (High)
ft3/min (m3/h)
W
Power Input
V
A
Refrigerant Tubing Kit / Accessories
Running Amperes
Pints/h
Moisture Removal (High)
187 to 253
Electrical Rating
Available Voltage Range
3.4
Cooling
Indoor
Fan Speeds
Features
Control / Temperature Control
Timer
Control Unit
Airflow Direction (Indoor)
Horizontal
Vertical
3/8 (9.52)
inch (mm)
Refrigerant Tubing Connections
R410A
(*Qt = Quiet mode)
dB-A
Indoor : Hi/Me/Lo/Qt*
34 / 31 / 28 / 23
Auto
Washable, Anti-Mold
Air Filter
Refrigerant
cu.ft (m3)
Operation Sound
Refrigerant
Tube Diameter
inch(mm)
inch(mm)
inch(mm)
Dimensions & Weight
Depth
inch (mm)
< 208V >
Wall Mounted Type Indoor Unit
Type
Performance
208V Single-Phase 60Hz
Voltage Rating
Cooling
7-7/16
Capacity
Manual
Microprocessor / I.C. Thermister
BTU/h
kW
1/4 (6.35)
Flare Type
9,000
2.65
Auto and 3 steps
24-Hour ON or OFF Timer Control
Wireless Remote Control Unit
35
259 (440)
0.17
10
Indoor Unit KMS1272
Narrow tube
Wide tube
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
19.8
(9.0)
24.3
(11.0)
(900)
10-1/32
(255)
2.82
(0.08)
Weight
Shipping Volume
11-7/32
(285)
32-15/32
(825)
(189)
13-25/32
(350)
35-7/16
Net
Ib. (kg)
Ib. (kg)
Shipping
Width
Depth
inch(mm)
inch(mm)
inch(mm)
Unit Dimensions
Package Dimensions
Height
Height
Width
Optional / Air Clean Filter
Air Circulation (High)
ft3/min (m3/h)
W
Power Input
V
A
Refrigerant Tubing Kit / Accessories
Running Amperes
Pints/h
Moisture Removal (High)
187 to 253
Electrical Rating
Available Voltage Range
4.26
Cooling
Indoor
Fan Speeds
Features
Control / Temperature Control
Timer
Control Unit
Airflow Direction (Indoor)
Horizontal
Vertical
3/8 (9.52)
inch (mm)
Refrigerant Tubing Connections
R410A
(*Qt = Quiet mode)
dB-A
Indoor : Hi/Me/Lo/Qt*
36 / 33 / 29 /25
Auto
Washable, Anti-Mold
Air Filter
Refrigerant
cu.ft (m3)
Operation Sound
Refrigerant
Tube Diameter
inch(mm)
inch(mm)
inch(mm)
Dimensions & Weight
Depth
inch (mm)
< 230V >
Wall Mounted Type Indoor Unit
Type
Performance
230V Single-Phase 60Hz
Voltage Rating
Cooling
7-7/16
Capacity
Manual
Microprocessor / I.C. Thermister
BTU/h
kW
1/4 (6.35)
Flare Type
11,900
3.50
Auto and 3 steps
24-Hour ON or OFF Timer Control
Wireless Remote Control Unit
35
282 (480)
0.15
11
Indoor Unit KMS1272
Narrow tube
Wide tube
3.50
Auto and 3 steps
24-Hour ON or OFF Timer Control
Wireless Remote Control Unit
35
282 (480)
0.17
7-7/16
Capacity
Manual
Microprocessor / I.C. Thermister
BTU/h
kW
1/4 (6.35)
Flare Type
11,900
< 208V >
Wall Mounted Type Indoor Unit
Type
Performance
208V Single-Phase 60Hz
Voltage Rating
Cooling
cu.ft (m3)
Operation Sound
Refrigerant
Tube Diameter
inch(mm)
inch(mm)
inch(mm)
Dimensions & Weight
Depth
inch (mm)
Auto
Washable, Anti-Mold
Air Filter
Refrigerant
3/8 (9.52)
inch (mm)
Refrigerant Tubing Connections
R410A
(*Qt = Quiet mode)
dB-A
Indoor : Hi/Me/Lo/Qt*
36 / 33 / 29 / 25
Airflow Direction (Indoor)
Horizontal
Vertical
Indoor
Fan Speeds
Features
Control / Temperature Control
Timer
Control Unit
Moisture Removal (High)
187 to 253
Electrical Rating
Available Voltage Range
4.26
Cooling
Optional / Air Clean Filter
Air Circulation (High)
ft3/min (m3/h)
W
Power Input
V
A
Refrigerant Tubing Kit / Accessories
Running Amperes
Pints/h
Unit Dimensions
Package Dimensions
Height
Height
Width
Width
Depth
inch(mm)
inch(mm)
inch(mm)
Net
Ib. (kg)
Ib. (kg)
Shipping
Weight
Shipping Volume
11-7/32
(285)
32-15/32
(825)
(189)
13-25/32
(350)
35-7/16
(900)
10-1/32
(255)
2.82
(0.08)
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
19.8
(9.0)
24.3
(11.0)
12
Indoor Unit KMS1872
Narrow tube
Wide tube
5.15
Auto and 3 steps
24-Hour ON or OFF Timer Control
Wireless Remote Control Unit
35
500 (850)
0.15
8-19/32
Capacity
Manual
Microprocessor / I.C. Thermister
BTU/h
kW
1/4 (6.35)
Flare Type
17,500
< 230V >
Wall Mounted Type Indoor Unit
Type
Performance
230V Single-Phase 60Hz
Voltage Rating
Cooling
cu.ft (m3)
Operation Sound
Refrigerant
Tube Diameter
inch(mm)
inch(mm)
inch(mm)
Dimensions & Weight
Depth
inch (mm)
Auto
Washable, Anti-Mold
Air Filter
Refrigerant
1/2 (12.7)
inch (mm)
Refrigerant Tubing Connections
R410A
(*Qt = Quiet mode)
dB-A
Indoor : Hi/Me/Lo/Qt*
41 / 38 / 34 / 28
Airflow Direction (Indoor)
Horizontal
Vertical
Indoor
Fan Speeds
Features
Control / Temperature Control
Timer
Control Unit
Moisture Removal (High)
187 to 253
Electrical Rating
Available Voltage Range
4.89
Cooling
Optional / Air Clean Filter
Air Circulation (High)
ft3/min (m3/h)
W
Power Input
V
A
Refrigerant Tubing Kit / Accessories
Running Amperes
Pints/h
Unit Dimensions
Package Dimensions
Height
Height
Width
Width
Depth
inch(mm)
inch(mm)
inch(mm)
Net
Ib. (kg)
Ib. (kg)
Shipping
Weight
Shipping Volume
11-23/32
(298)
41-15/16
(1,065)
(218)
11-3/8
(289)
44-7/8
(1,140)
14-29/32
(379)
4.23
(0.12)
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
26.5
(12.0)
33.1
(15.0)
13
Indoor Unit KMS1872
Narrow tube
Wide tube
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
26.5
(12.0)
33.1
(15.0)
(1,140)
14-29/32
(379)
4.23
(0.12)
Weight
Shipping Volume
11-23/32
(298)
41-15/16
(1,065)
(218)
11-3/8
(289)
44-7/8
Net
Ib. (kg)
Ib. (kg)
Shipping
Width
Depth
inch(mm)
inch(mm)
inch(mm)
Unit Dimensions
Package Dimensions
Height
Height
Width
Optional / Air Clean Filter
Air Circulation (High)
ft3/min (m3/h)
W
Power Input
V
A
Refrigerant Tubing Kit / Accessories
Running Amperes
Pints/h
Moisture Removal (High)
187 to 253
Electrical Rating
Available Voltage Range
4.89
Cooling
Indoor
Fan Speeds
Features
Control / Temperature Control
Timer
Control Unit
Airflow Direction (Indoor)
Horizontal
Vertical
1/2 (12.7)
inch (mm)
Refrigerant Tubing Connections
R410A
(*Qt = Quiet mode)
dB-A
Indoor : Hi/Me/Lo/Qt*
41 / 38 / 34 / 28
Auto
Washable, Anti-Mold
Air Filter
Refrigerant
cu.ft (m3)
Operation Sound
Refrigerant
Tube Diameter
inch(mm)
inch(mm)
inch(mm)
Dimensions & Weight
Depth
inch (mm)
< 208V >
Wall Mounted Type Indoor Unit
Type
Performance
208V Single-Phase 60Hz
Voltage Rating
Cooling
8-19/32
Capacity
Manual
Microprocessor / I.C. Thermister
BTU/h
kW
1/4 (6.35)
Flare Type
17,500
5.15
Auto and 3 steps
24-Hour ON or OFF Timer Control
Wireless Remote Control Unit
35
500 (850)
0.17
14
Indoor Unit KMS2472
Narrow tube
Wide tube
7.10
Auto and 3 steps
24-Hour ON or OFF Timer Control
Wireless Remote Control Unit
45
541 (920)
0.20
8-19/32
Capacity
Manual
Microprocessor / I.C. Thermister
BTU/h
kW
1/4 (6.35)
Flare Type
24,200
< 230V >
Wall Mounted Type Indoor Unit
Type
Performance
230V Single-Phase 60Hz
Voltage Rating
Cooling
cu.ft (m3)
Operation Sound
Refrigerant
Tube Diameter
inch(mm)
inch(mm)
inch(mm)
Dimensions & Weight
Depth
inch (mm)
Auto
Washable, Anti-Mold
Air Filter
Refrigerant
5/8 (15.88)
inch (mm)
Refrigerant Tubing Connections
R410A
(*Qt = Quiet mode)
dB-A
Indoor : Hi/Me/Lo/Qt*
44 / 41 / 38 / 30
Airflow Direction (Indoor)
Horizontal
Vertical
Indoor
Fan Speeds
Features
Control / Temperature Control
Timer
Control Unit
Moisture Removal (High)
187 to 253
Electrical Rating
Available Voltage Range
4.89
Cooling
Optional / Air Clean Filter
Air Circulation (High)
ft3/min (m3/h)
W
Power Input
V
A
Refrigerant Tubing Kit / Accessories
Running Amperes
Pints/h
Unit Dimensions
Package Dimensions
Height
Height
Width
Width
Depth
inch(mm)
inch(mm)
inch(mm)
Net
Ib. (kg)
Ib. (kg)
Shipping
Weight
Shipping Volume
11-23/32
(298)
41-15/16
(1,065)
(218)
11-3/8
(289)
44-7/8
(1,140)
14-29/32
(379)
4.23
(0.12)
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
26.5
(12.0)
33.1
(15.0)
15
Indoor Unit KMS2472
Narrow tube
Wide tube
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
26.5
(12.0)
33.1
(15.0)
(1,140)
14-29/32
(379)
4.23
(0.12)
Weight
Shipping Volume
11-23/32
(298)
41-15/16
(1,065)
(218)
11-3/8
(289)
44-7/8
Net
Ib. (kg)
Ib. (kg)
Shipping
Width
Depth
inch(mm)
inch(mm)
inch(mm)
Unit Dimensions
Package Dimensions
Height
Height
Width
Optional / Air Clean Filter
Air Circulation (High)
ft3/min (m3/h)
W
Power Input
V
A
Refrigerant Tubing Kit / Accessories
Running Amperes
Pints/h
Moisture Removal (High)
187 to 253
Electrical Rating
Available Voltage Range
4.89
Cooling
Indoor
Fan Speeds
Features
Control / Temperature Control
Timer
Control Unit
Airflow Direction (Indoor)
Horizontal
Vertical
5/8 (15.88)
inch (mm)
Refrigerant Tubing Connections
R410A
(*Qt = Quiet mode)
dB-A
Indoor : Hi/Me/Lo/Qt*
44 / 41 / 38 / 30
Auto
Washable, Anti-Mold
Air Filter
Refrigerant
cu.ft (m3)
Operation Sound
Refrigerant
Tube Diameter
inch(mm)
inch(mm)
inch(mm)
Dimensions & Weight
Depth
inch (mm)
< 208V >
Wall Mounted Type Indoor Unit
Type
Performance
208V Single-Phase 60Hz
Voltage Rating
Cooling
8-19/32
Capacity
Manual
Microprocessor / I.C. Thermister
BTU/h
kW
1/4 (6.35)
Flare Type
24,200
7.10
Auto and 3 steps
24-Hour ON or OFF Timer Control
Wireless Remote Control Unit
45
541 (920)
0.22
16
2-2. Major Component Specifications
2-2-1. Indoor Unit
Indoor Unit KMS0772
Type
Over- Current Protection
Over- Heat Protection
Micro F
VAC
Control PCB
1,050
No. of Poles
Rough Measure RPM (Cool)
250V 3A
Control Circuit Fuse
Controls
Cross-Flow
CB-KMS0772
Part No.
8
Type
Model ... Q'ty
Microprocessor
Remote Control Unit
RCS-4VPIS4U
1 ... D3-11/16 / L24-31/ 32 (D94 / L634)
Fan Motor
Heat Exchanger Coil
Run Capacitor
W
Ohm
(Ambient Temp. 68oF (20oC))-Yes
Nominal Output
Coil Resistance
(Ambient Temp. 77oF (25oC))
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
-
Aluminum Plate Fin / Copper Tube
2
19.5
Flap Motor
Type
Model
Rating
Face Area
ft2 (m2)
2.02 (0.188)
Coil
Rows
Fins per inch
Internal Controller
Yes
Coil Resistance
Ohm
Stepping Motor
MP24Z3
DC 12V
Each Pair of Terminal : 400+/-7%
Type
Fan
Safety Device
Q'ty ... Dia. and Length
DC Motor
47
inch (mm)
SIC-39CVL-D847-4 ... 1
17
Indoor Unit KMS0972
Type
Over- Current Protection
Over- Heat Protection
Micro F
VAC
Control PCB
1,100
No. of Poles
Rough Measure RPM (Cool)
250V 3A
Control Circuit Fuse
Controls
Cross-Flow
CB-KMS0972
Part No.
8
Type
Model ... Q'ty
Microprocessor
Remote Control Unit
RCS-4VPIS4U
1 ... D3-11/16 / L24-31/ 32 (D94 / L634)
Fan Motor
Heat Exchanger Coil
Run Capacitor
W
Ohm
(Ambient Temp. 68oF (20oC))-Yes
Nominal Output
Coil Resistance
(Ambient Temp. 77oF (25oC))
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
-
Aluminum Plate Fin / Copper Tube
2
19.5
Flap Motor
Type
Model
Rating
Face Area
ft2 (m2)
2.02 (0.188)
Coil
Rows
Fins per inch
Internal Controller
Yes
Coil Resistance
Ohm
Stepping Motor
MP24Z3
DC 12V
Each Pair of Terminal : 400+/-7%
Type
Fan
Safety Device
Q'ty ... Dia. and Length
DC Motor
47
inch (mm)
SIC-39CVL-D847-4 ... 1
18
Indoor Unit KMS1272
Type
Over- Current Protection
Over- Heat Protection
Micro F
VAC
Control PCB
1,200
No. of Poles
Rough Measure RPM (Cool)
250V 3A
Control Circuit Fuse
Controls
Cross-Flow
CB-KMS1272
Part No.
8
Type
Model ... Q'ty
Microprocessor
Remote Control Unit
RCS-4VPIS4U
1 ... D3-11/16 / L24-31/ 32 (D94 / L634)
Fan Motor
Heat Exchanger Coil
Run Capacitor
W
Ohm
(Ambient Temp. 68oF (20oC))-Yes
Nominal Output
Coil Resistance
(Ambient Temp. 77oF (25oC))
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
-
Aluminum Plate Fin / Copper Tube
2
19.5
Flap Motor
Type
Model
Rating
Face Area
ft2 (m2)
2.02 (0.188)
Coil
Rows
Fins per inch
Internal Controller
Yes
Coil Resistance
Ohm
Stepping Motor
MP24Z3
DC 12V
Each Pair of Terminal : 400+/-7%
Type
Fan
Safety Device
Q'ty ... Dia. and Length
DC Motor
47
inch (mm)
SIC-39CVL-D847-4 ... 1
19
Indoor Unit KMS1872
Type
Over- Current Protection
Over- Heat Protection
Micro F
VAC
Control PCB
1,200
No. of Poles
Rough Measure RPM (Cool)
250V 3A
Control Circuit Fuse
Controls
Cross-Flow
CB-KMS1872
Part No.
8
Type
Model ... Q'ty
Microprocessor
Remote Control Unit
RCS-4VPIS4U
1 ... D3-11/16 / L33-9/ 32 (D94 / L845)
Fan Motor
Heat Exchanger Coil
Run Capacitor
W
Ohm
(Ambient Temp. 68oF (20oC))-Yes
Nominal Output
Coil Resistance
(Ambient Temp. 77oF (25oC))
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
-
Aluminum Plate Fin / Copper Tube
2
19.5
Flap Motor
Type
Model
Rating
Face Area
ft2 (m2)
3.07 (0.285)
Coil
Rows
Fins per inch
Internal Controller
Yes
Coil Resistance
Ohm
Stepping Motor
MP24Z3
DC 12V
Each Pair of Terminal : 400+/-7%
Type
Fan
Safety Device
Q'ty ... Dia. and Length
DC Motor
30
inch (mm)
SIC-39CVL-D847-2 ... 1
20
Indoor Unit KMS2472
Type
Over- Current Protection
Over- Heat Protection
Micro F
VAC
Control PCB
1,300
No. of Poles
Rough Measure RPM (Cool)
250V 3A
Control Circuit Fuse
Controls
Cross-Flow
CB-KMS2472
Part No.
8
Type
Model ... Q'ty
Microprocessor
Remote Control Unit
RCS-4VPIS4U
1 ... D3-11/16 / L33-9/ 32 (D94 / L845)
Fan Motor
Heat Exchanger Coil
Run Capacitor
W
Ohm
(Ambient Temp. 68oF (20oC))-Yes
Nominal Output
Coil Resistance
(Ambient Temp. 77oF (25oC))
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
-
Aluminum Plate Fin / Copper Tube
2
19.5
Flap Motor
Type
Model
Rating
Face Area
ft2 (m2)
3.07 (0.285)
Coil
Rows
Fins per inch
Internal Controller
Yes
Coil Resistance
Ohm
Stepping Motor
MP24Z3
DC 12V
Each Pair of Terminal : 400+/-7%
Type
Fan
Safety Device
Q'ty ... Dia. and Length
DC Motor
30
inch (mm)
SIC-39CVL-D847-2 ... 1
2-3. Other Component Specifications
Indoor air temp sensor
PTM-D51HS3 TH2
Model No.
of sensor
Sensor Name
111
Quantity of Sensor
00
PTM-D51HS3-2 TH2
00011
KMS0772 KMS0972 KMS1272 KMS1872 KMS2472
KMS0772 KMS0972 KMS1272 KMS1872 KMS2472
Indoor heat exchanger sensor
PTM-D51HS3 TH1
Model No.
of sensor
Sensor Name
111
Quantity of Sensor
00
PTM-D51HS3-2 TH1
00011
0
32 50 68 86 104 122 140 158 176 194
(0) (10) (20) (30) (40) (50) (60) (70) (80) (90)
40
60
80
100
120
140
160
180
200
20
50
1
0
2
3
4
5
6
7
8
9
10
59 68 77 86 95 104
(10) (15) (20) (25) (30) (35) (40)
Resistance (k ohm)
Resistance (k ohm)
Temperature °F (°C)
Temperature °F (°C)
21
3. DIMENSIONAL DATA
Indoor Unit KMS0772
KMS0972
KMS1272
Unit: inch(mm)
22
Unit: inch(mm)
(dia.3-5/32
)
(dia.3-5/32
)
1-15/16
3/16
41-17/32 (1055)
3/16
11-23/32 (298)
41-15/16 (1065)
1-31/32
2-3/8 3-31/322-3/8 3-31/32
41-17/32 (1055)
1-31/32
9/32
2-3/8
(1/8)
8-19/32 (218)
18-11/16 15-7/8
2-3/82-3/8
1-15/16 31/32
15-27/32
3-3/4
17-23/32
3-3/4
8-3/8
4-5/8 4-5/8
41-15/16
11-23/32
1-25/32
Drain hose dia.23/32"(18)
Narrow tube
dia.1/4"(6.35)
3-9/16
3-9/16
12-3/3217-23/3212-3/32
3-3/4
1-25/32
3-3/4
7-31/32 7-31/32
(dia.3-5/32
)
(dia.3-5/32
)
7-23/32
1-27/32
1-3/32
2-3/4
1-1/41-1/4
5-9/32
2-1/16
29/32
Wide tube
dia.1/2"(12.70) KMS1872
dia.5/8"(15.88) KMS2472
Indoor Unit KMS1872
KMS2472
23
O.D. 3/8" (9.52 mm)
O.D. 1/4" (6.35 mm)
O.D. 1/2" (12.7 mm)
O.D. 1/4" (6.35 mm)
O.D. 5/8" (15.88 mm)
O.D. 1/4" (6.35 mm)
4. REFRIGERANT FLOW DIAGRAM
4-1. Refrigerant Flow Diagram
Indoor Unit KMS0772
KMS0972
KMS1272
Indoor Unit KMS1872
Indoor Unit KMS2472
Indoor heat
exchanger
Cooling cycle
Indoor unit
Indoor heat
exchanger
Cooling cycle
Indoor unit
Indoor heat
exchanger
Cooling cycle
Indoor unit
24
Horizontal distance (ft.)
Axis air velocity (ft./sec.)
Vertical distance (ft.)
Room air temp. : 80°F (26.7°C)
Fan speed : High
Cooling
: Flap angle 0° , : Axis air velocity 0
°
: Flap angle 30° , : Axis air velocity 30
°
5. PERFORMANCE DATA
5-1. Air Throw Distance Charts
Indoor Unit KMS0772
25
0
5
10
15
051015 20 25 30
Horizontal distance (ft.)
Axis air velocity (ft./sec.)
Vertical distance (ft.)
Cooling
: Flap angle 0° , : Axis air velocity 0
°
: Flap angle 30° , : Axis air velocity 30
°
Indoor Unit KMS0972
Room air temp. : 80°F (26.7°C)
Fan speed : High
26
0
5
10
15
051015 20 25 30
Horizontal distance (ft.)
Axis air velocity (ft./sec.)
Vertical distance (ft.)
Room air temp. : 80°F (26.7°C)
Fan speed : High
Cooling
: Flap angle 0° , : Axis air velocity 0
°
: Flap angle 30° , : Axis air velocity 30
°
Indoor Unit KMS1272
27
0
5
10
15
051015 20 25 30
Horizontal distance (ft.)
Axis air velocity (ft./sec.)
Vertical distance (ft.)
Room air temp. : 80°F (26.7°C)
Fan speed : High
Cooling
: Flap angle 0° , : Axis air velocity 0
°
: Flap angle 30° , : Axis air velocity 30
°
Indoor Unit KMS1872
28
0
5
10
15
051015 20 25 30
Horizontal distance (ft.)
Axis air velocity (ft./sec.)
Vertical distance (ft.)
Room air temp. : 80°F (26.7°C)
Fan speed : High
Cooling
: Flap angle 0° , : Axis air velocity 0
°
: Flap angle 30° , : Axis air velocity 30
°
Indoor Unit KMS2472
29
0
5
10
15
051015 20 25 30
EVAPORATOR
TERMINAL BASE
TO OUTDOOR UNIT
GRN/YEL
LAMP
10P(
WHT
)
FLAP
5P (WHT)
FLAP
CONNECTOR
FLAP MOTOR
RED
PNK
BLU
BRN
YEL
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
66
1
2
3
4
5
1
2
3
4
5
AC1
AC2
S1
WHT
RED
WHT
WHT
WHT
WHT
WHT
WHT
WHT
WHT
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
IND LAMP ASSY
ROOM/COIL
4P(
WHT
)
DCM
6P (BLU)
CONTROLLER
FM
FAN MOTOR
ROOM THERMISTOR
BLK
BLK
BLK
WHT
RED
BLK
BLK
1
2
3
4
1
2
3
4
COIL THERMISTOR
ION
3P (
WHT
)
HA
JEM-A
1
2
3
1
2
3
1
2
3
1
2
3
4P (WHT)
1 2 4
BLK
3
BLK
BLK
RED
WHT
1 2 3 4
1 2 3 4
ION ASSY
ION
TERMINAL
1
2
3
WHT
BLK
RED
RED
CONNECTOR
8FA2-5257-69700-0
BLU
WHT
BLK
YEL
WARNING
To avoid electrical shock hazard, be sure to
disconnect power before checking, servicing
and/or cleaning any electrical parts.
6. ELECTRICAL DATA
6-1. Electric Wiring Diagrams
Indoor Unit KMS0772 KMS0972 KMS1272
30
8FA2-5257-70500-0
EVAPORATOR
TERMINAL BASE
TO OUTDOOR UNIT
GRN/YEL
LAMP
10P(
WHT
)
FLAP
5P (WHT)
FLAP
CONNECTOR
FLAP MOTOR
RED
PNK
BLU
BRN
YEL
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
66
1
2
3
4
5
1
2
3
4
5
AC1
AC2
S1
WHT
RED
WHT
WHT
WHT
WHT
WHT
WHT
WHT
WHT
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
IND LAMP ASSY
ROOM/COIL
4P(
WHT
)
DCM
6P (BLU)
CONTROLLER
FM
FAN MOTOR
ROOM THERMISTOR
BLK
BLK
BLK
BLK
1
2
3
4
1
2
3
4
COIL THERMISTOR
ION
3P (
WHT
)
HA
JEM-A
1
2
3
1
2
3
4P (WHT)
1 2 4
BLK
3
BLK
BLK
RED
WHT
1 2 3 4
1 2 3 4
ION ASSY
ION
TERMINAL
1
2
3
WHT
BLK
RED
RED
BLU
WHT
BLK
YEL
Indoor Unit KMS1872 KMS2472
WARNING
To avoid electrical shock hazard, be sure to
disconnect power before checking, servicing
and/or cleaning any electrical parts.
31
7. FUNCTIONS
7-1. Operation Functions
Emergency operation SENSOR DRY
During DRY operation, the system adjusts the room
temperature and fan speed according to the conditions in the
room, in order to maintain a comfortable room environment.
SENSOR DRY operation
DRY operation is as shown in the figure below.
PAM- control
In order to further improve inverter performance, control is
switched between PWM control at low operation speeds, and
PAM control at high operation speeds, making the most
effective use of power.
The compressor operation frequency varies.
The indoor fan operates with 1/f fluctuation.
The compressor operates at a low operating frequency.
The indoor fan operates with 1/f fluctuation.
Monitoring operation takes place when the room temperature
is below 59°F
(15°C), or more than 5°F(3°C) below the set
temperature.
When the monitoring range is entered, the compressor stops,
and the indoor fan operates with 1/f fluctuation.
DRY A
DRY B
Monitor
Conditions are monitored at all
times when the room temperature
is below 59°F(15°C).
Load
COOL zone
A zone
B zone
Emergency operation is available when the remote
controller malfunctions, has been lost, or otherwise
cannot be used.
The set temperature is 4°F(2°C) below the detected room
temperature in the case of cooling operation.
(GREEN) (Lamp Off)
COOL STOP
To operate the system, press the OPERATION button,
which is also used as the receiver, below the unit display.
Each time this button is pressed, the OPERATION lamp
changes color to indicate the type of operation. Select the
desired type of operation.
The Sensor Dry operation during the Low Ambient Cooling
Mode (outside air temperature:59°F(15°C) or lower) is as
follows.
The compressor operates a cycle of 3 minutes ON and 6
minutes OFF repeatedly.
NOTE
DRY A
DRY Band
(CLxx models only)
32
HIGH POWER
NIGHT SETBACK
Lamp colors
Timer backup
This function acts to raise the power but keeps the AC system in
the same operating mode.
This function is set with the HIGH POWER button on the remote
controller.
(It can be set regardless of the temperature and fan speed
settings.)
HIGH POWER operation from remote controller
The unit operates at maximum output for 30 minutes,
regardless of the desired temperature.
The fan speed is 1 step above "High."
OPERATION lamp
When HIGH POWER operation ends, the unit operates at low
Hz for 5 minutes, regardless of the thermostat OFF conditions.
When in DRY mode, operation is in the cooling zone.
Operation stops if there are no operator controls for 25 hours or
longer after unit operation switched from OFF to ON by use of
ON timer operation.
Frequency
MAX
0
Start End
Time
30 min. 5 min.
Setting
temperature
Press the NIGHT
SETBACK button
When NIGHT SETBACK operation is set, the temperature and
fan speed settings will be adjusted automatically to allow
comfortable sleep.
When NIGHT SETBACK operation is set, " mark" appears on
the remote controller. The main unit display lamp also becomes
dimmer.
COOL and DRY modes
When the night setback mode is selected, the air conditioner
automatically raises the temperature setting 2°F(1°C) when 30
minutes have passed after the selection was made, and then
another 2°F(1°C) after another 30 minutes have passed,
regardless of the indoor temperature when night setback was
selected. This enables you to save energy without sacrificing
comfort. This function is convenient when gentle cooling is
needed.
TIMER lamp Green
QUIET lamp Green
ION lamp Green
DRY operation Orange
COOL operation Green
NOTE
30 min. 30 min.
Time
2°F(1°C)
2°F(1°C)
33
Freeze prevention
During COOL or DRY operation, freezing is detected and
operation is stopped when the temperature of the indoor heat
exchanger matches the conditions below.
1.
Freeze-prevention operation is engaged when the
temperature of the indoor heat exchanger is below 43°F(6°C).
2.
Restart after freeze-prevention operation occurs when the
temperature of the indoor heat exchanger reaches 46°F(8°C)
or above.
a.
Area: Automatic capacity control
b.
When the temperature drops below Point A, the operation
frequency is reduced by a certain proportion.
c.
Area: Frequency increase is prohibited.
d.
When the temperature reaches Point C or above, freezing
prevention is ended and control is the same as in the
a
area.
* When the temperature drops to below 36°F(2°C) (continuously
for 2 minutes or longer), the compressor stops.
Once the freeze condition is detected, the air conditioner will
work less than the maximum frequency until it is turned off.
The Freeze Prevention Control during the Low Ambient Cooling
Mode (outside air temperature:59
°F(15°C)
or lower) is as follows.
The compressor stops when the temperature of indoor heat
exchanger becomes less than 36°F(2°C).
The compressor restarts when the temperature of indoor heat
exchanger becomes 46°F(8°C) or higher.
A
*
B
C
abcd
Indoor heat exchanger
temperature ¡F (¡C)
36
(2)
43
(6)
46
(8)
7-2. Protective Functions
NOTE (CLxx models only)
34
1HR.
TIMER
button
ON/OFF
operation
button
ACL
(Reset)
button
ION
button
< Clock display >
Test run mode
Self-diagnostics mode
8. TROUBLESHOOTING
8-1. Precautions before Performing Inspection or Repair
NOTE
PROCEDURE
After checking the self-diagnostics monitor, turn the power OFF before starting inspection or repair.
High-capacity electrolytic capacitors are used inside the outdoor unit controller (inverter). They retain an electrical charge
(charging voltage DC 310V) even after the power is turned OFF, and some time is required for the charge to dissipate. Be
careful not to touch any electrified parts before the controller LED (red) turns OFF.
If the outdoor controller is normal, approximately 30 seconds will be required for the charge to dissipate. However, allow
at least 5 minutes for the charge to dissipate if there is thought to be any trouble with the outdoor controller.
1:If the operation lamp blinks every 0.5 seconds immediately when the
power is turned ON, there is an external ROM (OTP data) failure on the
indoor circuit board, or a ROM socket insertion problem, or the ROM
has not been installed.
2:The failure mode is stored in memory even when the power is not ON.
Follow the procedure below to perform diagnostics.
8-2. Method of Self-Diagnostics
Follow the procedure below to perform detailed trouble diagnostics.
Step 1: Press and hold the remote controller ION button and 1 HR TIMER
button. At the same time, press the ACL (reset) button. Use a
pointed object such as the tip of a pen to press the ACL button.
When this has been done, "oP-1" (test run) appears, blinking, in
the remote controller clock display area.
Step 2: Next, press the 1 HR TIMER button once to change the display
from "oP-1" to "oP-3" (self-diagnostics). (The display continues to
blink.)
Step 3: Finally press the ON/OFF button to engage self-diagnostics mode.
• The self-diagnostics function utilizes the 3 indicator lamps on the main
unit, in combinations of ON lamps, blinking lamps, and OFF lamps, to
report the existence of sensor trouble or a protective operation. (The
lamps blink or remain ON for 5 seconds, then turn OFF for 2 seconds.)
Self-diagnostics is completed when the buzzer sounds 3 short beeps.
• A maximum of 3 self-diagnostics reports are displayed, for 5 seconds
each, beginning with the most recent report. Following this display the
lamps turn OFF. In order to view the self-diagnostics results again,
press the ON/OFF button again.
• The 3 lamps remain OFF if no trouble has occurred.
<IMPORTANT> After self-diagnostics is completed, be sure to press the
ACL (reset) button to return to normal mode. The air
conditioner will not operate if this is not done.
After turning on power to the air conditioner, use the remote controller and
follow the steps below to execute self-diagnostics.
35
Indication on indoor unit
....
OFF
Timer Operation
Code Diagnostics item Diagnostics contents
Since the indications cover various units, the corresponding parts listed below may not be present in some models.
S01
Room temperature sensor failure
Indoor heat exchanger sensor failure
Humidity sensor failure
Compressor temperature sensor failure
Outdoor heat exchanger sensor failure
Outdoor air temperature sensor failure
Indoor/outdoor communications failure
(serial communications)
Outdoor unit external ROM (OTP data)
failure
Peak current cut-off
• HIC circuit failure
• Power Tr (transistor) circuit failure
PAM circuit failure
Active circuit failure
Outdoor system communications failure
Outdoor high-pressure SW
OLR operation
Outdoor power supply open phase
Outdoor coil freezing
Compressor discharge overheat
prevention activated.
Indoor fan operating failure
No-refrigerant protection
DC compressor drive circuit failure
Outdoor fan operating failure
Freeze-prevention operation activated.
4-way valve switching failure
Indoor zero-cross failure
Outdoor electrical current detection
failure
S02
S03
S04
S05
S06
S07
E01
E02
E03
E04
E05
E06
E07
E08
E09
E10
E11
E12
E13
....
Blinking
....
ON (Illuminated)
Quiet
(3) (2) (1)
(1)Sensor open circuit or short circuit
(2)Contact failure at connector or open circuit at terminal crimping location
(short-circuit detection only for the humidity sensor)
(3)Indoor/outdoor circuit board failure
(1)Sensor open circuit or short circuit
(2)Contact failure at connector or open circuit at terminal crimping location
(3)Outdoor circuit board failure
Outdoor circuit board failure
(1) Mis-wiring (2) AC power failure (3) Blown fuse (4) Power relay failure
(5) Indoor or outdoor circuit board failure
(1) HIC or power Tr failure (2) Outdoor fan does not turn. (3) Instantaneous power outage
(4) Service valve not opened. (5) Outdoor fan blocked. (6) Continuous overload operation
(7) Compressor failure (8) Outdoor circuit board failure
(1) External ROM data failure (2) Outdoor circuit board failure
(1) Instantaneous power outage (2) HIC or power transistor failure
(3) Outdoor circuit board failure
(1) Outdoor circuit board failure (2) Outdoor power supply voltage failure
(1) Electric expansion valve failure (2) Capillaries choked (3) Shortage of refrigerant
(4) Continuous overload operation (5) Outdoor fan does not rotate (6) Outdoor circuit board failure
(1) Fan motor failure (2) Contact failure at connector (3) Indoor circuit board failure
(1) 4-way valve failure (heat pump model only)
(2) Outdoor circuit board failure
(1) Service valve not opened. (2) Shortage of refrigerant
(1) Open phase (2) Outdoor circuit board failure
(1) Fan motor failure (2) Contact failure at connector (3) Outdoor circuit board failure
(1) Mis-wiring (2) Blown fuse (3) Power relay failure (4) Open phase
(5) Outdoor circuit board failure (6) Compressor failure
(1) Indoor fan system failure (2) Shortage of refrigerant (3) Low-temperature operation
REMOTE CONTROL receiver
(1) OPERATION lamp
(2) TIMER lamp
(3) QUIET lamp
ION lamp
OPERATION button
INDOOR UNIT
(1) Self-diagnostics Lamps
36
(2) If the self-diagnostics function fails to operate
Check the indoor unit.
Is the fuse blown?
Replace the controller.
Replace the circuit
board or the fuse.
No indicators illuminate and the
indoor fan does not rotate.
Check the power voltage.
Normal
Blown
37
8-3. Checking the Indoor and Outdoor Units
(1) Checking the indoor unit
(2) Checking the outdoor unit
(3) Checking the serial communications
Using the TEST/T-RUN terminals
ControlNo. Check items (unit operation)
T-RUN : Test run (compressor and fan motor turn ON).
TEST/MV : Compresses time to 1/60th (accelerates
operation by 60 times faster than normal).
Use the remote controller to operate the
unit in "TEST run" mode. To determine
whether the mode is currently in
"TEST run" mode, check the 4 indicator
lamps on the unit. If all 4 are blinking,
the current mode is "TEST run."
If there are no problems with the above, then check the outdoor unit.
1
The rated voltage must be present between inter-unit wirings 1 and 2.
Connect a 5 k ohm resistor between inter-unit wirings 2 and 3. When the
voltage at both ends is measured, approximately 12 to 15V DC must
be output and the multimeter pointer must bounce once every 8
seconds.
Or instead of measuring the voltage, you can insert an LED jig and
check that the LED flickers once every 8 seconds.
•
•
ControlNo. Check items (unit operation)
Apply the rated voltage between outdoor
unit terminals L1 and L2.
If there are no problems with the above, then check the indoor unit.
Turn the power OFF before performing short circuiting procedures.
Refer to the previous pages when performing system self-diagnostics.
So that the check can be made quickly, indicators blink at first communication after power ON.
Before performing the above checks, perform “TEST run” operation, and check that the rated voltage is output to terminals L1 and L2
on the outdoor unit. If it is not output, there is a failure related to the indoor unit power.
1 The control panel LED (red) must illuminate.
Short-circuit the outdoor unit COM terminal
to the T-RUN terminal.
2 The compressor and fan motor must all turn on.
•
•
TEST/T-RUN terminals
(TEST)/MV T-RUN COM
For the "Test run" procedure, refer to "4. How to Test Run the Air Conditioner" on Appendix B.
Probable location of malfunction
Indoor unit circuit board failure
Outdoor unit circuit board failure
Failure (open circuit, contact failure, etc.)
in the inter-unit wirings
Outdoor unit circuit board failure
Short-circuit terminals 2 and 3 on
the outdoor unit terminal plate.
Short-circuit terminals 2 and 3 on
the indoor unit terminal plate.
Initial self-diagnostics
Control 1 Control 2
....
OFF
....
Blinking
....
Illuminated
Quiet
( 3 )
Timer
( 2 )
Operation
( 1 )
Quiet
( 3 )
Timer
( 2 )
Operation
( 1 )
Quiet
( 3 )
Timer
( 2 )
Operation
( 1 )
38
[Trouble symptom 3] Motor rotates for some time (several seconds), but then quickly stops, when the indoor
unit operates.
(There is trouble in the system that provides feedback of motor rotation speed from the
motor to the indoor unit controller.)
[Trouble symptom 4] Fan motor rotation speed does not change during indoor unit operation.
[Trouble symptom 5] Fan motor rotation speed varies excessively during indoor unit operation.
(Remedy for symptom 3 to 5)
It is not possible to identify whether the trouble is indoor unit controller trouble or motor trouble.
Therefore, first replace the indoor unit controller, then (if necessary) replace the DC motor.
8-4. Trouble Diagnosis of Fan Motor
8-4-1. Indoor Fan Motor
This indoor DC fan motor contains an internal control PCB. Therefore, it is not possible to measure the coil
resistance, and the following procedure should be used to check the motor.
To perform diagnosis, operate the unit in cooling mode with indoor fan speed "High". Next, make sure that the
indoor unit receive the signals from the remote controller when the ON/OFF operation button is pressed.
[Trouble symptom 1] The fan does not stop when the unit stops. Indoor unit controller trouble.
[Trouble symptom 2] The fan motor does not rotate when the unit is operating.
(Diagnostic procedure)
* Disconnect the motor connectors and measure the voltage at the DC motor connectors on the indoor
unit controller (3 locations).
(Diagnostic results)
All of the above measured values are normal. Fan motor trouble (Replace the motor.)
Any one of the above measured values is not normal. Indoor unit controller trouble (Replace the controller .)
(Reference) DC motor connector pin arrangement
Pin 1: Vm (red)
Pin 2: Not used
Pin 3: Gnd (black)
Pin 4: Vcc (white)
Pin 5: Vs (yellow)
Pin 6: PG (blue)
Important:
(A) Turn OFF the power before connecting or disconnecting the motor connectors.
(B) When performing voltage measurement at the indoor controller connector for (3) in the table
below, the DC motor will trip and voltage output will stop approximately 1 minute after operation
is started. For this reason, to measure the voltage again, turn OFF the unit once using the
remote controller, and then start the air conditioner again.
(1) Vm-Gnd: Between pin 1 and pin 3
(2) Vcc-Gnd: Between pin 4 and pin 3
(3) Vs-Gnd: Between pin 5 and pin 3
Measurement location
DC 230 V or more
DC 14 V or more
Fluctuation between DC 1.7 to 6.1 V
Normal value
39
8-5. Noise Malfunction and Electromagnetic Interference
An inverter A/C operates using pulse signal control and high frequencies. Therefore, it is susceptible to the effects of external
noise, and is likely to cause electromagnetic interference with nearby wireless devices.
A noise filter is installed for ordinary use, preventing these problems. However, depending on the installation conditions, these
effects may still occur. Please pay attention to the points listed below.
(1) Noise malfunction
This refers to the application of high-frequency noise to the signal wires, resulting in abnormal signal pulses and malfunction.
Locations most susceptible to noise
1.Locations near broadcast stations where
there are strong electromagnetic waves
2.Locations near amateur radio (short wave)
stations
3.Locations near electronic sewing machines
and arc-welding machines
Correction
1.Use shielded wires.
2.Move unit away from the noise source.
(The fundamental concept is to
make the system less susceptible to noise.)
- Insulate for noise or
distance from the noise source. -
Trouble
Either of the following trouble may occur.
1.The unit may stop suddenly during
operation.
2.Indicator lamps may flicker.
(2) Electromagnetic interference
This refers to noise generated by high-speed switching of the microcomputer and compressor. This noise radiates through
space and returns to the electric wiring, affecting any wireless devices (televisions, radios, etc.) located nearby.
Locations most susceptible to noise
1.A television or radio is located near the
A/C and A/C wiring.
2.The antenna cable for a television or
radio is located close to the A/C and A/C
wiring.
3.Locations where television and radio
signals are weak.
Correction
1.Select a separate power source.
2.Keep the A/C and A/C wiring at least 1 meter
away from wireless devices and antenna cables.
3.Change the wireless device’s antenna to a highsensitivity antenna.
4.Change the antenna cable to a BS coaxial cable.
5.Use a noise filter (for the wireless device).
6.Use a signal booster.
Trouble
1.Noise appears in the television picture,
or the picture is distorted.
2.Static occurs in the radio sound.
40
INSTRUCTION MANUAL
KMS0772
KMS0972
KMS1272
KMS1872
KMS2472
(OI-852-6-4180-806-00-1)
(OI-852-6-4180-807-00-1)
APPENDIX A
A-1
Features
This air conditioner is an inverter type unit that automatically adjusts capacity as appropriate. Details on these functions
are provided below; refer to these descriptions when using the air conditioner.
• Microprocessor Controlled Operation
The interior compartment of the remote control unit
contains several features to facilitate automatic
operation, easy logically displayed for easy use.
• Simple One-touch Wireless Remote Control
The remote control unit has several features to
facilitate automatic operation.
• 24-Hour ON or OFF Timer
This timer can be set to automatically turn the unit
on or off at any time within a 24 hour period.
• 1-Hour OFF Timer
This timer can be set to automatically turn off the
unit at any time after one hour.
• Night Setback
Pressing this button changes the setting of the
room temperature thermostat, allowing you to set
the temperature at whatever level that you find
comfortable.
• Automatic and 3-step Fan Speed
Auto/High/Medium/Low
• Air Sweep Control
This function moves a flap up and down in the air
outlet, directing air in a sweeping motion around the
room and providing comfort in every corner.
• Automatic Restart Function for Power Failure
Even when power failure occurs, preset
programmed operation can be reactivated once
power resumes.
• High Power Operation
The unit operates at maximum output for 30
minutes, regardless of the desired temperature.
The fan speed is 1 step above “High”.
• Quiet Operation
The fan rotates slower than the fan speed setting to
provide a quieter operating sound.
• ION Operation
While it is operating, the unit generates negative
ions that freshen up the air in the room.
• Anti-Mold Filter
This unit is equipped with an anti-mold filter that
inhibits the growth of mold and bacteria.
• Air Clean Filter
An air filter that eliminates unpleasant odors and
cleans the air is available.
Purchase a replacement filter at your local dealer.
(model STK-FDXB)
• Auto. Flap Control
This automatically sets the flap to the optimum
position during cooling and drying operation.
2
OI-807-2-EG
Contents
Features............................................................................................................ 2
Product Information........................................................................................... 3
Alert Symbols.................................................................................................... 3
Installation Location .......................................................................................... 4
Electrical Requirements .................................................................................... 4
Safety Instructions............................................................................................. 4
Names of Parts ................................................................................................. 5
Using the Remote Control Unit ....................................................................... 10
Operation with the Remote Control Unit ........................................................ 12
1. Operation ............................................................................................... 12
2. Adjusting the Fan Speed........................................................................ 13
3. Fan Only................................................................................................. 13
4. Night Setback Mode............................................................................... 14
5. QUIET Mode .......................................................................................... 15
6. HIGH POWER Mode ............................................................................. 15
7. ION Mode............................................................................................... 15
Special Remarks ............................................................................................. 16
Setting the Timer............................................................................................. 17
Using the 1-Hour OFF Timer .......................................................................... 19
Tips for Energy Saving.................................................................................... 19
Adjusting the Airflow Direction ........................................................................ 20
Operation without the Remote Control Unit .................................................... 21
Care and Cleaning .......................................................................................... 21
Troubleshooting ............................................................................................... 24
Operating Range............................................................................................. 24
Page
Product Information
If you have problems or questions concerning your Air Conditioner, you will need
the following information. Model and serial numbers are on the nameplate on the
bottom of the cabinet.
Model No. ______________________ Serial No. ____________________
Date of purchase ________________________________________________
Dealer’s address ________________________________________________
Phone number ________________
Alert Symbols
The following symbols used in this manual, alert you to potentially
dangerous conditions to users, service personnel or the appliance:
This symbol refers to a hazard or unsafe
practice which can result in severe
personal injury or death.
CAUTION
This symbol refers to a hazard or unsafe
practice which can result in personal injury
or product or property damage.
OI-807-3-EG
3
Installation Location
• We recommend that this air conditioner be installed properly by qualified
installation technicians in accordance with the Installation Instructions
provided with the unit.
• Before installation, check that the voltage of the electric supply in your home or
office is the same as the voltage shown on the nameplate.
• Do not install this air conditioner where there are fumes or flammable
gases, or in an extremely humid space such as a greenhouse.
• Do not install the air conditioner where excessively high heat-generating
objects are placed.
Avoid: To protect the air conditioner from heavy corrosion, avoid installing the outdoor
unit where salty sea water can splash directly onto it or in sulphurous air near a
spa.
Electrical Requirements
1. All wiring must conform to the local electrical codes. Consult your dealer or a
qualified electrician for details.
2. Each unit must be properly grounded with a ground (or earth) wire or through
the supply wiring.
3. Wiring must be done by a qualified electrician.
CAUTION
Safety Instructions
• Read this Instruction Manual carefully before using this air conditioner. If
you still have any difficulties or problems, consult your dealer for help.
• This air conditioner is designed to give you comfortable room conditions.
Use this only for its intended purpose as described in this Instruction
Manual.
• Never use or store gasoline or other flammable vapor or liquid near the
air conditioner — it is very dangerous.
• This air conditioner has no ventilator for intaking fresh air from
outdoors. You must open doors or windows frequently when you use
gas or oil heating appliances in the same room, which consume a lot of
oxygen from the air. Otherwise there is a risk of suffocation in an
extreme case.
• Do not turn the air conditioner on and off from the power mains switch.
Use the ON/OFF operation button.
• Do not stick anything into the air outlet of the outdoor unit. This is
dangerous because the fan is rotating at high speed.
• Do not let children play with the air conditioner.
• Do not cool the room too much if babies or invalids are present.
4
OI-807-4-EG
Names of Parts
Air intakes
Air outlet
Remote control unit
Refrigerant tubes
OUTDOOR UNIT
INDOOR UNIT
Drain hose
Air outlet
NOTE
Air Intake Air from the room is drawn into this section and passes through air filters which
Air Outlet Conditioned air is blown out of the air conditioner through the air outlet.
Remote Control Unit The wireless remote control unit controls power ON/OFF, operation mode
Refrigerant Tubes The indoor and outdoor units are connected by copper tubes through which
Drain Hose Moisture in the room condenses and drains off through this hose.
This illustration is based on the external view of a standard model.
Consequently, the shape may differ from that of the air conditioner which you
have selected.
This air conditioner consists of an indoor unit and an outdoor unit. You can control
the air conditioner with the remote control unit.
remove dust.
selection, temperature, fan speed, timer setting, and air sweeping.
refrigerant gas flows.
Outdoor (Condensing) Unit The outdoor unit contains the compressor, fan motor, heat exchanger coil, and
other electrical components.
OI-807-5-EG
5
IMPORTANT
Avoid using radio equipment
such as mobile phone near
(within 4 ft.) the remote
control receiver. Some radio
equipment may cause
malfunction of the unit.
If the trouble happens,
disconnect power and restart
the air conditioner after a few
minutes.
Unit Display and Operation Button
INDOOR UNIT
QUIET
REMOTE CONTROL receiver
OPERATION lamp
TIMER lamp
QUIET lamp
ION lamp
OPERATION button
REMOTE CONTROL receiver This section picks up infrared signals from the remote control unit (transmitter).
OPERATION button When the remote control cannot be used, pressing this button enables cooling
operation.
Each time this button is pressed, the operation mode changes cyclically.
Cooling operation Stop
OPERATION lamp This lamp lights when the system is in the continuous DRY (orange), COOL
(green) and FAN (green) mode.
TIMER lamp This lamp lights when the system is being controlled by the timer.
QUIET lamp This lamp lights during operation in the QUIET mode.
ION lamp This lamp lights during operation in the ION mode while the indoor unit is
operating.
NOTE
The unit’s display lamps are dimmed during operation in the NIGHT SETBACK
mode.
6
OI-807-6-EG
Displayed when the
time display is set to
12-hour time.
Remote Control Unit (Display)
Displayed when transmitting data
Displayed when indoor unit sensor
is in use
Displayed when setting
temperature
Displayed when temperature is
shown
Displayed when setting timer
Symbols
(1) Operation mode
MILD DRY ..............................
COOL.....................................
FAN ........................................
(2) Fan speed
Automatic operation ...............
HIGH .....................................
MEDIUM.................................
LOW .......................................
(3) Temperature setting
60–86°F
When set to 80 °F
temperature indication............
(4) Timer
24-hour clock with ON/OFF
program Timer........................
ON Timer................................
OFF Timer..............................
1-hour OFF Timer...................
(5) NIGHT SETBACK ..................
(6) Confirmation of
transmission ...........................
(7) Auto. fla.dication.....................
Flap angle indication ..............
Sweep indication ....................
OI-807-7-EG
(8) High power operation .............
(9) Quiet operation.......................
(10) ION operation.......................
7
Remote Control Unit
Tran smitte r
ION button
QUIET button
FAN SPEED selector button
FLAP button
ON TIME
setting
buttons
Advance button
Return button
CANCEL button
SENSOR button
Display
Sensor
(Cover closed)
ON/OFF operation button
1 HR. TIMER button
Temperature setting buttons (TEMP.)
MODE selector button
NIGHT SETBACK button
HIGH POWER button
Advance button
Return button
CLOCK button
Time display selector button
OFF TIME
setting
buttons
ADDRESS switch
Temperature display
selector button
NOTE
Tran smitte r When you press the buttons on the remote control unit, the mark appears in
Sensor A temperature sensor inside the remote control unit senses the room
Display Information on the operating conditions is displayed while the remote control unit
ION button : This button is for turning the negative ions generated during operation on
ON/OFF operation button This button is for turning the air conditioner on and off.
1 HR. TIMER button
(1-HOUR OFF TIMER)
The illustration above pictures the remote control unit after the cover has been
opened.
the display to transmit the setting changes to the receiver in the air conditioner.
temperature.
is switched on. If the unit is turned off, FLAP setting and FAN SPEED setting are
not displayed.
and off.
: When you press this button, regardless of whether the unit is operating or
stopping, the unit operates for one hour and then shuts down.
ACL button
8
OI-807-8-EG
Remote Control Unit (continued)
Temperature setting buttons
(TEMP.)
Press the button to increase the set temperature.
Press the button to reduce the set temperature.
The temperature setting changes by 1 °C or 2 °F each time one of the TEMP.
buttons is pressed.
QUIET button : When you press this button, the fan rotates slower than the fan speed
setting to provide a quieter operating sound.
MODE selector button Use this button to select DRY, COOL or FAN mode.
(DRY) : The air conditioner reduces the humidity in the room.
(COOL) : The air conditioner makes the room cooler.
(FAN) : The air conditioner works only as a circulation fan.
FAN SPEED selector button : The air conditioner automatically decides the fan speeds.
: High fan speed
: Medium fan speed
: Low fan speed
NIGHT SETBACK button For details, see “4. Night Setback Mode”. When you press this button in the DRY
or COOL mode, the mark appears in the display, and the remote control unit
will automatically adjust the set temperature to save energy.
FLAP button Press this button either to select the setting of the airflow direction to the auto.
flap in each mode or one of the six possible positions manually or to select the
sweep function which moves the flap up and down automatically.
: Auto flap setting: If selected in a cooling or dry operation, the flap is set at
position (7) in the following chart.
: The airflow direction can be set manually. (six positions)
: The flap moves up and down automatically.
NOTE
When you press the FLAP button, the air flow direction will be changed one by
one as follows.
SWEEP
HIGH POWER button : If this button is pressed during DRY, COOL or FAN operation, the unit
operates at maximum output for 30 minutes, regardless of the desired
temperature.
The fan speed is 1 step above “High”.
ON TIME/OFF TIME setting
buttons
No display: The timer does not operate.
: The air conditioner starts at the set time.
: The air conditioner stops at the set time.
: The air conditioner stops and starts, or starts and stops, at the
set times every day. For details, see “Setting the Timer”.
OI-807-9-EG
9
Remote Control Unit (continued)
SENSOR button When you press this button (use a small-tipped object such as a ballpoint pen),
the mark will appear at the display. And the room temperature is detected by
the sensor which is built into the indoor unit and the air conditioner is controlled
accordingly.
NOTE
Temperature Display Selector button
Time Display Selector button This switches the time display between 24-hour time and 12-hour time.
ACL button (ALL CLEAR) Puts the remote control unit into pre-operation status. Always press this button
ADDRESS switch • The address switch changes to prevent mixing of signals from remote control
NOTE
The remote control unit sends the temperature signal to the air conditioner regularly at five minute
intervals. If the signal from the remote control unit stops for more than 15 minutes due to the loss of the
remote control unit or other trouble, the air conditioner will switch to the temperature sensor which is built
into the indoor unit and control the room temperature. In these cases, the temperature around the remote
control unit may differ from the temperature detected at the air conditioner’s position.
If the remote control is located near a heat source, such as a space heater or in direct
sunlight, press the SENSOR button to switch to the sensor on the indoor unit.
This switches the temperature display between °C and °F.
after replacing the batteries.
units when two air conditioners are installed next to each other. Normally, the
address switch is set to A. For more information, please contact the dealer
where you made the purchase.
• Normally, the tabs on the remote control unit should not be bent.
Using the Remote Control Unit
How to Install Batteries
NOTE
1. Slide the cover in the direction
indicated by the arrow and remove it.
2. Install two AAA alkaline batteries.
Make sure the batteries point in the
direction marked in the battery
compartment.
3. Use a thin object such as the tip of a
pen to press the ACL button.
ACL button
• The batteries last about six months, depending on how much you use
the remote control unit. Replace the batteries when the remote control
unit’s display fails to light, or when the remote control cannot be used to
change the air conditioner’s settings.
• Use two fresh leak-proof type-AAA alkaline batteries.
• In replacing batteries, follow the instructions as mentioned in the subsection “How to Install Batteries”.
• If you do not use the remote control unit more than 1 month, take out the
batteries.
10
OI-807-10-EG
Using the Remote Control Unit (continued)
How to Use the Remote
Control Unit
Remote Control Unit
Installation Position
DO NOT • In direct sunlight
When using the remote control unit, always point the unit’s transmitter head
directly at the air conditioner’s receiver.
Air conditioner
(Indoor unit)
Receiver
Remote control
(Transmitter head)
unit
The remote control unit may be operated either from a non-fixed position or from
a wall-mounted position. To ensure that the air conditioner operates correctly, DO
NOT install the remote control unit in the following places:
• Behind a curtain or other places where it is covered
• More than 26 feet (8 m) away from the air conditioner
• In the path of the air conditioner’s airstream
• Where it may become extremely hot or cold
• Where it may be subject to electrical or magnetic noise
• Where there is an obstacle between the remote control unit and air conditioner
(since a check signal is sent from the remote control unit every 5 minutes)
Mounting the Remote Control
Unit
Remote control
unit mount
Mounting screws
5/32 x 5/8" (4 x 16 mm)
(included)
When Holding the Remote
Control Unit
Before mounting the remote control unit, press the ON/OFF operation button at
the mounting location to make sure that the air conditioner operates from that
location. The indoor unit should make a beeping sound to indicate that it has
received the signal.
Rear side
Press
Set in
place
Hole
• To prevent loss of the remote control unit,
you can connect the remote control unit to
the mount by passing a string through the
remote control unit and attachment hole.
To take out the remote control unit, pull it forward.
• When using the remote control unit and during air conditioner operation, the
transmitter on the remote control unit should be pointed toward the receiver on
the indoor unit.
• Make sure that there are no objects between the remote control unit and
receiver which could block the signal.
OI-807-11-EG
11
1. Operation
Operation with the Remote Control
Unit
STEP 2
STEP 3
NOTE
STEP 1
STEP 4
STEP 5
Check that the circuit breaker on the power panel is turned on.
Press the setting buttons as described below and change the settings as desired.
STEP 1 Press the MODE selector button and select the desired mode.
For dehumidifying operation →
For cooling operation →
For fan only operation →
STEP 2 To start the air conditioner, press the ON/OFF operation button.
STEP 3 Press the TEMP. setting buttons to change the temperature
setting to the desired temperature.
Adjustable temperature range:
30 °C max.
16 °C min.
STEP 4 Set the FAN SPEED selector button to the setting you want.
or 86 °F max.
60 °F min.
12
STEP 5 Press the FLAP button and set the airflow direction as desired.
(Refer to “Adjusting the Airflow Direction” on page 20.)
To stop the air conditioner, press the ON/OFF operation button again.
OI-807-12-EG
Operation with the Remote Control Unit (continued)
NOTE
• Choose the best position in the room for the remote control unit, which also
acts as the sensor for room comfort and transmits the operating instructions.
Once you’ve found this best position, always keep the remote control unit
there.
• This appliance has a built-in 5-minute time delay circuit to ensure reliable
operation. When the operation button is pressed, the compressor will start
running within three minutes. In the event of power failure, the unit will stop.
2. Adjusting the Fan Speed
A. Automatic fan speed Simply set the FAN SPEED selector button to the position.
This automatically sets the best fan speed for the room temperature.
B. Manual fan speed If you want to adjust fan speed manually during operation, just set the FAN
SPEED selector button as desired. [ , , or ]
3. Fan Only
STEP 2
STEP 1
STEP 3
If you want to circulate air without any temperature control, follow these steps:
STEP 1 Press the MODE selector button to switch to the fan mode .
STEP 2 Press the ON/OFF operation button.
STEP 3 Press the FAN SPEED selector button to select the fan speed of
your choice ( , or ).
OI-807-13-EG
13
4. Night Setback Mode
Operation with the Remote Control Unit (continued)
Night Setback Mode is used for saving energy.
Press the NIGHT SETBACK button while operation.
The mark appears in the display.
To release the night setback function, press the NIGHT SETBACK button again.
In Cooling and DRY
Mode: ( and )
When the night setback mode is selected, the air conditioner automatically
raises the temperature setting 2 °F when 30 minutes have passed after the
selection was made, and then another 2 °F after another 30 minutes have
passed, regardless of the indoor temperature when night setback was
selected. This enables you to save energy without sacrificing comfort. This
function is convenient when gentle cooling is needed.
Setting
2°F
temperature
Press the NIGHT
2°F
30 min.
30 min.
Time
SETBACK button
14
OI-807-14-EG
5. QUIET Mode
6. HIGH POWER Mode
Operation with the Remote Control Unit (continued)
QUIET Mode is used to reduce the fan sound of the indoor unit.
Press the QUIET button.
The mark appears in the display.
To cancel, press QUIET button again.
• In QUIET Mode, the fan rotates at a slower speed than the fan speed setting.
• If the unit is already operating with a very low airflow, the fan sound may not
change even if the QUIET button is pressed.
HIGH POWER mode can be used to increase the output of the indoor unit for all
operation modes.
7. ION Mode
Press the HIGH POWER button.
The mark appears in the display.
To cancel, press HIGH POWER button again.
• When the HIGH POWER button is pressed, the unit operates at maximum
output for 30 minutes, regardless of the desired temperature. The fan speed is
1 step above “High”.
• QUIET Mode and HIGH POWER Mode cannot be used at the same time.
NOTE
• Depending on the operating conditions, the fan speed may be
increased by a small amount only.
The ION mode is used during operation to generate negative ions that freshen up
the air in the room.
Press the ION button.
The mark appears in the display.
OI-807-15-EG
To cancel, press ION button again.
• The indoor unit’s ION lamp lights up while negative ions are being generated.
• ION “on” is the remote control unit’s initial setting.
• The negative ions are generated from the negative ion generator.
15
‘‘DRY’’ ( ) Operation
How it works? • Once the room temperature reaches the level that was set, the unit’s operation
Special Remarks
frequency is changed automatically.
• During DRY operation, the fan speed automatically runs at lower speed for
providing a comfortable breeze.
• ‘‘DRY’’ operation is not possible if the indoor temperature is 59 °F or less.
Cooling ( ) Operation
Power failure during
operation
Clicking Sound
Clicking sound is heard from
the air conditioner
Remote Control Unit
• Sometimes the indoor unit may not get to the set fan speed such as LOW and
QUIET under cool operation at very low outdoor temperatures due to the
indoor unit being protected from ice or frost when combined with the outdoor
unit for Low Ambient Cooling models.
• In the event of power failure, the unit will stop. When the power is resumed,
the unit will restart automatically within 15 minutes by the remote control unit.
• In cooling operation, any plastic parts may shrink due to a sudden
temperature change. In this event, a clicking sound may occur. This is normal,
and the sound will soon disappear.
• The remote control unit sends the setting condition to the air conditioner
regularly at five minute intervals.
16
OI-807-16-EG
Setting the Timer
NOTE
1. How to set the present
time
2. How to set the OFF time
In the descriptions below, the following settings are used for the temperature and
time indicator selector button on the bottom front section of the remote control.
• Temperature: °F
• Time: AM, PM
(Example) To set to 10:30 pm.
Operation Indication
1. Press the CLOCK button once if
the time indicator is not flashing.
2. Press the Advance, Return ( ,
) button until PM 10:30 is
displayed.
3. Press the CLOCK button again. This completes the setting of the
(Example) To stop the air conditioner at 11:00 am.
1. Press the OFF TIME setting
button once.
The time indication alone flashes.
The time can be set in 1-minute
increments. Holding down the button
advances the time rapidly in 10-minute
increments.
current time.
The timer indication is displayed,
and the present OFF time is shown.
OI-807-17-EG
2. Press the Advance, Return ( ,
) button until AM 11:00 is
displayed.
3. Wait a few seconds, and then the
setting is complete.
The timer indication blinks.
The time can be set in 10-minute
increments. Holding down the button
advances the time rapidly in 10-minute
increments.
The timer indication stops
blinking and the present time is
displayed.
17
Setting the Timer (continued)
3. How to set the ON time
4. How to set DAILY ON/OFF
REPEAT timer
(Example) To start operation at 7:10 am.
Operation Indication
1. Press the ON TIME setting
button once.
2. Press the Advance, Return ( ,
) button until AM 7:10 is
displayed.
The timer indication is displayed,
and the present ON time is shown.
The timer indication blinks.
The time can be set in 10-minute
increments. Holding down the button
advances the time rapidly in 10-minute
increments.
3. Wait a few seconds, and then
the setting is complete.
The timer indication stops
blinking and the present time is
displayed.
(Example) To start operation at 7:10 am. and stop the air conditioner at 11:00 am.
10:30 pm.
Present time
7:10 am.
ON
11:00 am.
OFF
1. Set the timer ON/OFF times as
shown in 2-1, 2, 3 and 3-1, 2, 3.
NOTE
• The ON/OFF combination timer uses the current time as the
reference, and it is activated starting from whichever set time
comes first.
• With the ON/OFF combination timer, the settings are repeated
every day.
• You can check the timer ON/OFF times after you have set them
by pressing the ON TIME and OFF TIME setting buttons.
To cancel a timer program • Press the CANCEL button.
• When either an ON or OFF timer is to be canceled, press the button
corresponding to the timer whose program is to be canceled, and then press
the CANCEL button.
NOTE
• The airflow direction, fan speed and temperature setting can be changed after
a timer program has been set even when the unit is stopped. Even when
operation is stopped during an ON timer program, the unit will start operating
when the set time is reached provided that the program is not canceled.
• When the ON timer and OFF timer are set to the same time, the timer
operates as if it is turned off.
The present time 10:30 pm. and
are displayed.
18
OI-807-18-EG
Using the 1-Hour OFF Timer
1. 1-Hour OFF Timer This function causes the unit to operate for one hour and then stop,
regardless of whether the unit is on or off when this button is pressed.
The indicator in the display indicates that this function is operating.
Setting procedure:
Regardless of whether the unit is operating or stopped, press the 1 HR. TIMER
button.
appears in the display.
Cancellation procedure:
Press the ON/OFF operation button to turn the unit off, wait for the unit to stop
operating, and then press the ON/OFF operation button again.
The 1-Hour Timer function is now cancelled and the unit operates normally.
NOTE
2. Operation together with the
DAILY ON/OFF REPEAT Timer
Do not • Block the air intake and outlet of the unit. If they are obstructed, the unit
Do • Always try to keep the air filter clean. (Refer to “Care and Cleaning”.) A
• If, while the 1-Hour Timer function is operating, the 1HR. TIMER button is
pressed once to cancel the function and then again, the unit continues to
operate for one hour from that point in time and then stops.
• It is not possible to use the OFF Timer and 1-Hour OFF Timer together.
Whichever function is set last takes precedence. If the 1 HR. TIMER button is
pressed while the TIMER OFF function operates, the OFF Timer is cancelled
and the unit will stop operating one hour later.
The 1-Hour OFF Timer setting is given priority over the DAILY ON/OFF REPEAT
setting.
Tips for Energy Saving
will not work well, and may be damaged.
• Let direct sunlight into the room. Use sunshades, blinds or curtains. If the walls
and ceiling of the room are warmed by the sun, it will take longer to cool the
room.
clogged filter will impair the performance of the unit.
• To prevent conditioned air from escaping, keep windows, doors and any other
openings closed.
OI-807-19-EG
19
Adjusting the Airflow Direction
1. Horizontal The horizontal airflow can be adjusted by moving the vertical vanes with your
hands to the left or right.
CAUTION
2. Vertical The vertical airflow can be adjusted by moving the flap with the remote control
A. Sweep function
The flap starts moving up and down to
deliver air over the sweep range.
C. Auto flap function
The flap is set to the recommended
position.
When the humidity is high, the vertical vanes should be in the front
position during the cooling or dehumidifying operation. If the vertical
vanes are positioned all of the way to the right or left, condensation may
begin to form around the air vent and drip down.
unit. Do not move the flap with your hands. Confirm that the remote control unit
has been turned on. Use the FLAP button to set either the sweep function or one
of the six airflow direction settings.
SWEEP
COOL
DRY
FAN
B. Setting the airflow manually
Referring to the above illustration, use the
FLAP button to set the airflow direction
within the range used during the cooling or
dehumidifying operation.
20
NOTE
CAUTION
• The flap automatically closes when the unit is off.
• Use the FLAP button on the remote control to adjust the position of the
flap. If you move the flap by hand, the flap position according to the
remote control and the actual flap position may no longer match. If this
should happen, shut off the unit, wait for the flap to close, and then turn
on the unit again; the flap position will now be normal again.
• Do not have the flap pointed down during cooling operation.
Condensation may begin to form around the air vent and drip down.
OI-807-20-EG
Operation without the Remote
Control Unit
INDOOR UNIT If you have lost the remote control unit or it has trouble, follow the steps
below.
When the air conditioner is not running
Each time the OPERATION button is pressed, the operation mode changes
cyclically.
Cooling operation Stop
OPERATION button
NOTE
The temperature is set to the room temperature minus 4 °F during the cooling
operation, and the fan speed and flap are set to Auto.
Care and Cleaning
1. For safety, be sure to turn the air conditioner off and also to disconnect
the power before cleaning.
2. Do not pour water on the indoor unit to clean it. This will damage the
internal components and cause an electric shock hazard.
Casing and Grille (Indoor Unit) Clean the casing and grille of the indoor unit with a vacuum cleaner brush, or
wipe them with a clean, soft cloth.
If these parts are stained, use a clean cloth moistened with a mild liquid
detergent. When cleaning the grille, be careful not to force the vanes out of place.
CAUTION
1. Never use solvents, or harsh chemicals when cleaning the indoor unit.
Do not wipe the plastic casing using very hot water.
2. Some metal edges and the fins are sharp and may cause injury if
handled improperly; be especially careful when you clean these parts.
3. The internal coil and other components of the outdoor unit must be
cleaned every year. Consult your dealer or service center.
OI-807-21-EG
21
Care and Cleaning (continued)
Anti-Mold Filter The anti-mold filter behind the air intake grille should be checked and cleaned at
least once every two weeks.
How to remove the anti-mold
filter
Cleaning Use a vacuum cleaner to remove light dust. If there is sticky dust on the filter,
How to replace the anti-mold
filter
1. Grasp both ends of the air
intake grille, and remove it by
opening towards the front and
pulling towards you.
2. Remove the anti-mold filter
attached to the rear of the air
intake grille.
wash the filter in lukewarm, soapy water, rinse it in clean water, and dry it.
1. With the FRONT mark of the
anti-mold filter at the front,
align the two indentions near
the mark with the hooks at the
rear of the air intake grille, and
then mount the anti-mold filter.
Air intake grille
Anti-mold filter
Anti-mold filter
NOTE
FRONT mark
Hook
2. Allow the edge of the air intake
grille to slide into the top of the
indoor unit, and then insert it
all the way inside.
3. To attach the air intake grille to
the indoor unit, press its
bottom right and left corners as
well as its bottom center into
place.
Attach so that the round pins at the top right and left corners of the air intake grille
are inserted into the grooves at the top right and left of the indoor unit.
Air intake grille
Groove
Pin
Air intake grille
22
OI-807-22-EG
Care and Cleaning (continued)
Air Clean Filter The air clean filter removes dust and dirt from the air, and reduces odors and
smoke from tobacco.
This air clean filter cannot remove harmful gases or vapors nor ventilate air in
the room. You must open doors or windows frequently when you use gas or oil
heating appliances. Otherwise there is a risk of suffocation in extreme cases.
How to install the air clean
filter
How to clean the air clean filter • In general, the filter should be sucked to remove dust in low fan speed of a
NOTE
Cleaning the main unit and
remote control unit
Removing and remounting the
air intake grille
The air clean filter needs to be installed behind the air intake grille.
1. Remove the air intake grille.
2. Install the air clean filter in the
position shown in the figure.
3. Remount the air intake grille.
Air clean
filter
vacuum cleaner once every three months.
• If there is heavily grime on the filter, soak the filter in lukewarm water with
neutral detergent diluted 1:500 for 1 to 2 minutes then wash it.
• Rinse the filter in clean water, then let it dry on the towel in room temperature.
• Do not bend nor give excessive force onto the air clean filter.
• If the filter surface is heavily blocked with dirt or damaged, replace it with new
one. Purchase a replacement filter at your local dealer. (model STK-FDXB)
• Wipe clean using a soft, dry cloth.
• To remove stubborn dirt, moisten a cloth in warm water no hotter than 104 °F,
wring thoroughly, and then wipe.
• The air intake grille can be removed in order to wash it with water.
Refer to “How to remove the anti-mold filter” and “How to replace the anti-mold
filter” on page 22.
When using a footstool or the like, be careful not to let it tip over.
CAUTION
Washing the grille with water • Clean the grille gently using a soft sponge, or the like. Then wipe away any
remaining moisture.
• Neutral detergent may be used to remove stubborn dirt. Then rinse thoroughly
with water and wipe away any remaining moisture.
Cleaning the negative ion
generator
NOTE
Follow the steps below when the
generator has become dirty.
For safety, be sure to turn the air
conditioner off and also to disconnect
the power before cleaning.
Remove the dust on the negative ion
generator.
• Use a toothbrush, etc. to dust off the end.
• Use a cotton swab, etc., to clean around
the generator inside the plastic case,
taking care not to touch the electrodes.
• During use, the negative ion generator and other metal parts may become
discolored: this is normal and not indicative of malfunctioning.
• If the dirt on and around the negative ion generator is left to build up, a puffing or
sputtering sound will eventually be heard. In this case, clean the generator
immediately.
• Do not apply excessive force while performing maintenance.
Negative ion generator
(metal electrodes inside plastic case)
OI-807-23-EG
23
Troubleshooting
If your air conditioner does not work properly, first check the following points before requesting service. If it still does not
work properly, contact your dealer or service center.
Trouble Possible Cause Remedy
Air conditioner does not run at all. 1. Power failure. 1. Restore power.
2. Leakage circuit breaker tripped.
3. Line voltage is too low. 3. Consult your electrician or dealer.
2. Contact service center.
4. Batteries in remote control unit have
run down.
OPERATION lamp blinks and air
conditioner does not operate.
Compressor runs but soon stops. Obstruction in front of condenser coil. Remove obstruction.
Poor cooling performance. 1. Dirty or clogged air filter. 1. Clean air filter to improve airflow.
Clicking sound is heard from the air
conditioner.
OPERATION lamp lights but outdoor
unit will not run.
Trouble in system. Contact service center.
2. Heat source or many people in room. 2. Eliminate heat source if possible.
3. Doors and/or windows are open. 3. Shut them to keep the heat out.
4. Obstacle near air intake or air
discharge port.
5. Thermostat is set too high for cooling. 5. Set the temperature lower.
In cooling operation, any plastic parts
may shrink due to a sudden
temperature change. In this event, a
clicking sound may occur.
1. The use of cellular phones near the
air conditioner may cause
disturbance to its normal operation.
4. Replace batteries.
4. Remove it to ensure good airflow.
This is normal, and the sound will soon
disappear.
1. Turn off the power then restart the
air conditioner after a while.
2. Consult your dealer.
Operating Range
The air conditioner is operable within the temperature ranges as listed below:
For Cooling Only Models : CM1972, CM2472, CM3172
Temperature Indoor air temperature Outdoor air temperature
COOLING Max. 95°F DB / 71 °F WB 115 °F DB
Min. 67°F DB / 57 °F WB 67 °F DB
For Low Ambient Cooling Models : CLM1972, CLM2472, CLM3172
Temperature Indoor air temperature Outdoor air temperature
COOLING Max. 95 °F DB / 71 °F WB 115 °F DB
Min. 67 °F DB / 57 °F WB *1
*1 32 °F D.B.: When combined with KMS1872 or KMS2472
23 °F D.B.: When combined with KMS0772, KMS0972 or KMS1272
24
OI-02-807-24-EG
INSTALLATION INSTRUCTIONS
KMS0772
KMS0972
KMS1272
KMS1872
KMS2472
(II-852-6-4189-996-00-0)
APPENDIX B
A-2
CAUTION
For Indoor Unit
INSTALLATION INSTRUCTIONS
– Inverter Split System Air Conditioner –
This air conditioner uses the new refrigerant R410A.
Contents
Page
IMPORTANT!
Please Read Before Starting .................................. 2
1. GENERAL .......................................................... 3
1-1. Tools Required for Installation (not supplied)
1-2. Accessories Supplied with Unit
1-3. Optional Copper Tubing Kit
1-4. Type of Copper Tube and Insulation Material
1-5. Additional Materials Required for Installation
2. INSTALLATION SITE SELECTION ................... 4
2-1. Indoor Unit
2-2. Embedding the Tubing and Wiring
3. HOW TO INSTALL THE INDOOR UNIT ............. 6
3-1. Remove the Rear Panel from the Unit
3-2. Make a Hole
3-3. Install the Rear Panel on the Wall
3-4. Remove the Grille to Install the Indoor Unit
3-5. Shape the Indoor Side Tubing
3-6. Wiring Instructions
3-7. Wiring Instructions for Inter-unit Connections
3-8. Mounting
3-9. Drain Hose
COOL/ DRY Model
Model Combinations
Combine indoor and outdoor units only as listed
below.
Indoor Unit Outdoor Unit
KMS0772 CM1972
KMS0972 CM2472
KMS1272 CM3172
KMS1872 CLM1972
KMS2472 CLM2472
CLM3172
Power Source:
60 Hz, single-phase, 230 / 208 VAC
Combinations of indoor and outdoor units
Connect indoor and outdoor units only in the combinations listed in the catalog or installation manual.
Connecting any other model may result in
operation failure and system damage.
4. HOW TO TEST RUN THE AIR CONDITIONER ... 16
5. REMOTE CONTROL UNIT INSTALLATION
POSITION ......................................................... 17
5-1. Mounting on a Wall
6. ADDRESS SWITCH .......................................... 18
6-1. Address Setting of the Remote
Control Unit
7. CONNECTING A HOME AUTOMATION
DEVICE.............................................................. 19
8. INSTALLATION CHECK SHEET ...................... 19
SANYO FISHER COMPANY SANYO Canada Inc.
A DIVISION OF SANYO NORTH AMERICA CORPORATION 300 Applewood Crescent, Concord
21605 Plummer Street Ontario, L4K 5C7, Canada
85264189996000 © SANYO 2006
Chatsworth, CA 91311 U.S.A.
Be sure to read the yellow instruction sheet
attached to the outdoor unit for models using the
new refrigerant R410A.
NOTE
The illustrations are based on the typical appearance of
a standard model. Consequently, the shape may differ
from that of the air conditioner that you are installing.
In Canada
IMPORTANT!
Please Read Before Starting
This air conditioning system meets strict safety and operating
standards. As the installer or service person, it is an important
part of your job to install or service the system so it operates
safely and efficiently.
For safe installation and trouble-free operation, you
must:
G
Carefully read this instruction booklet before beginning.
G
Follow each installation or repair step exactly as shown.
G
Observe all local, state, and national electrical codes.
G
Pay close attention to all warning and caution notices
given in this manual.
This symbol refers to a hazard
WARNING
CAUTION
or unsafe practice which can
result in severe personal injury
or death.
This symbol refers to a hazard
or unsafe practice which can
result in personal injury or product or property damage.
If Necessary, Get Help
These instructions are all you need for most installation
sites and maintenance conditions. If you require help for a
special problem, contact our sales/service outlet or your
certified dealer for additional instructions.
In Case of Improper Installation
The manufacturer shall in no way be responsible for improper installation or maintenance service, including failure to
follow the instructions in this document.
SPECIAL PRECAUTIONS
WARNING
• Do not supply power to the unit until all wiring and tubing
are completed or reconnected and checked.
• Highly dangerous electrical voltages are used in this
system. Carefully refer to the wiring diagram and these
instructions when wiring. Improper connections and
inadequate grounding can cause accidental injury or
death.
• Ground the unit following local electrical codes.
• Connect all wiring tightly. Loose wiring may cause overheating at connection points and a possible fire hazard.
When Transporting
Be careful when picking up and moving the indoor and outdoor units. Get a partner to help, and bend your knees when
lifting to reduce strain on your back. Sharp edges or thin aluminum fins on the air conditioner can cut your fingers.
When Wiring
ELECTRICAL SHOCK CAN CAUSE SEVERE
PERSONAL INJURY OR DEATH. ONLY A
QUALIFIED, EXPERIENCED ELECTRICIAN
SHOULD ATTEMPT TO WIRE THIS SYSTEM.
When Installing…
…In a Ceiling or Wall
Make sure the ceiling/wall is strong enough to hold the
unit’s weight. It may be necessary to construct a strong
wood or metal frame to provide added support.
…In a Room
Properly insulate any tubing run inside a room to prevent
“sweating” that can cause dripping and water damage to
walls and floors.
When Connecting Refrigerant Tubing
• Do not add any refrigerant, air, or substance into the
refrigeration circuit other than the designated refrigerant
(R410A). Adding anything other than the specified refrigerant may cause the pressure to rise excessively in the
refrigeration circuit, rupturing the circuit and causing injury
or damage.
• Use all-new tubing and flare nuts to make the tubing connections. Using any previous parts (from R22-based systems) may result in damage to the equipment, and may
lead to the refrigeration circuit rupturing, causing a serious accident.
• Apply refrigerant lubricant to the matching surfaces of
the flare and union tubes before connecting them, then
tighten the nut with a torque wrench for a leak-free
connection.
• Check carefully for leaks before starting the test run.
When Servicing
• Turn the power OFF at the main power box (mains) before
opening the unit to check or repair electrical parts and
wiring.
• Keep your fingers and clothing away from any moving
parts.
• Clean up the site after you finish, remembering to check
that no metal scraps or bits of wiring have been left inside
the unit being serviced.
Others
CAUTION
• Ventilate any enclosed areas when installing or testing
the refrigeration system. Escaped refrigerant gas, on
contact with fire or heat, can produce dangerously
toxic gas.
• Confirm upon completing installation that no refrigerant
gas is leaking. If escaped gas comes in contact with a
stove, gas water heater, electric room heater or other heat
source, it can produce dangerously toxic gas.
2
1. General
This booklet briefly outlines where and how to install the
air conditioning system. Please read over the entire set
of instructions for the indoor and outdoor units and make
sure all accessory parts listed are with the system before
beginning.
1-1. Tools Required for Installation (not supplied)
1. Standard screwdriver
2. Phillips head screwdriver
3. Knife or wire stripper
4. Tape measure
5. Carpenter’s level
1-2. Accessories Supplied with Unit
Table 1
Parts Figure Q’ty Parts Figure Q’ty
Remote
control unit
Remote control
unit holder
AAA alkaline
battery
1
1
2
Tapping screw
Rawl plug
Drain hose
adapter
Tr uss-head
Phillips
5
/325/8" (4 16 mm)
6. Sabre saw or key hole saw
7. Hacksaw
8. Core bits
9. Hammer
10. Drill
11. Tube cutter
12. Tube flaring tool
13. Torque wrench
14. Adjustable wrench
15. Reamer (for deburring)
Parts Figure Q’ty
8
1
Clamp
Air clean filter
10
1
2
Packed in the indoor unit.
1-3. Optional Copper Tubing Kit
Copper tubing for connecting the outdoor unit to the
indoor unit is available in kits which contain the narrow
and wide tubing, fittings and insulation. Consult your
nearest sales outlet or A/C workshop.
1-4. Type of Copper Tube and Insulation Material
2. Foamed polyethylene insulation for the specified
copper tubes as required to precise length of tubing.
Wall thickness of the insulation should be not less
than 5/16" (8 mm).
3. Use insulated copper wire for field wiring. Wire size
varies with the total length of wiring. Refer to 3-6.
Wiring Instructions for details.
If you wish to purchase these materials separately from
a local source, you will need:
1. Deoxidized annealed copper tube for refrigerant tubing as detailed in Table 2.
Cut each tube to the appropriate lengths 1' to 1'4"
(30 cm to 40 cm) to dampen vibration between units.
Table 2
Model
KMS0772 1/4" (6.35 mm) 0.0314" (0.8 mm) 3/8" (9.52 mm) 0.0314" (0.8 mm)
KMS0972 1/4" (6.35 mm) 0.0314" (0.8 mm) 3/8" (9.52 mm) 0.0314" (0.8 mm)
KMS1272 1/4" (6.35 mm) 0.0314" (0.8 mm) 3/8" (9.52 mm) 0.0314" (0.8 mm)
KMS1872 1/4" (6.35 mm) 0.0314" (0.8 mm) 1/2" (12.70 mm) 0.0314" (0.8 mm)
KMS2472 1/4" (6.35 mm) 0.0314" (0.8 mm) 5/8" (15.88 mm) 0.0393" (1.0 mm)
Outer Dia. Thickness Outer Dia. Thickness
Narrow Tube Wide Tube
CAUTION
Check local electrical codes
and regulations before
obtaining wire. Also, check
any specified instructions or
limitations.
3
1-5. Additional Materials Required for Installation
1. Refrigeration (armored) tape
2. Insulated staples or clamps for connecting wire
(See local codes)
3. Putty
4. Refrigeration lubricant
5. Clamps or saddles to secure refrigerant tubing
2. Installation Site Selection
2-1. Indoor Unit
To prevent abnormal heat generation
WARNING
AVOID:
G direct sunlight.
and the possibility of fire, do not
place obstacles, enclosures and
grilles in front of or surrounding the
air conditioner in a way that may
block air flow.
Indoor unit
Drain hose
Outside drainage
Fig. 1
G nearby heat sources that may affect performance of the
unit.
G areas where leakage of flammable gas may be expected.
G placing or allowing any obstructions near the A/C inlet or
outlet.
G installing in rooms that contain instant-on (rapid-start)
fluorescent lamps. (These may prevent the A/C from
receiving signals.)
G places where large amounts of oil mist exist.
G installing in locations where there are devices that
generate high-frequency emissions.
DO:
G select an appropriate position from which every corner of
the room can be uniformly cooled. (High on a wall is best.)
G select a location that will hold the weight of the unit.
G select a location where tubing and drain hose have the
shortest run to the outside. (Fig. 1)
G allow room for operation and maintenance as well as
unrestricted air flow around the unit. (Fig. 2)
G install the unit within the maximum elevation difference
(H1, H2, H3, H4) above or below the outdoor unit and
within a total tubing length (L1+L2+L3, L1+L2+L3+L4)
from the outdoor unit as detailed in Table 3 and Fig. 3a.
2" (5 cm)
min.
Front View
Fig. 2
INDOOR
UNIT (1)
Elevation
difference (H1)
H4
INDOOR
UNIT (4)
Tubing length (L1)
OUTDOOR
UNIT
L4
Fig. 3a
CAUTION
For stable operation of the
air conditioner, do not
install wall-mounted type
indoor units less than 5'
(1.5 m) from floor level.
6" (15 cm)
min.
INDOOR
UNIT (2)
L2
L3
INDOOR
UNIT (3)
Indoor unit
Minimum height
from floor level
5' (1.5 m)
2" (5 cm)
min.
H2
H3
Wall
Floor level
Fig. 3b
4
G Install the indoor unit more than 3.3' (1 m) away from any
antenna or power lines or connecting wires used for television, radio, telephone, security system, or intercom.
Electrical noise from any of these sources may affect
operation.
G install in a sturdy manner to avoid increased operating
noise.
Table 3
Max. Max. Allowable Total Limit of Limit of Elevation Required Amount
Allowable Tubing Length Total Tubing Length Difference of Additional
Model Tubing Length at shipment (L1+L2+L3) or (H1, H2, H3, H4) Refrigerant
per unit (L1+L2+L3) or (L1+L2+L3+L4) (ft.) (oz./ft.)
(ft.) (L1+L2+L3+L4) (ft.)
(ft.)
CM1972/CLM1972 82 150 (L1+L2+L3) 150 (L1+L2+L3) 50 —
CM2472/CLM2472 82 150 (L1+L2+L3+L4) 200 (L1+L2+L3+L4) 50 0.22
CM3172/CLM3172 100 150 (L1+L2+L3+L4) 230 (L1+L2+L3+L4) 50 0.22
* If total tubing length becomes 150 to 200 ft. (Max.) or 150 to 230 ft. (Max.), charge additional refrigerant (R410A) by 0.22 oz./ft.
No additional charge of compressor oil is necessary.
2-2. Embedding the Tubing and Wiring
*
G Before beginning embedding installation work, consult
fully with agencies or offices related to the building’s
foundation, construction, electricity, and water.
G Wait to make connections to the embedded portion.
Each connection step is described later in this
manual.
G Securely cover the end of the embedded tubing to
prevent intrusion of dirt or moisture.
G If an embedded tube is to be left for a long time, fill
the tube with nitrogen and seal both ends securely.
If a tube is left open for an extended time, moisture in
the air inside the tubing may condense into water
droplets, and lead to water contamination of the refrigerant circuit.
G In order to prevent insulation breakdown and ground
faults, do not allow wiring ends to come in contact with
rainwater, or be subjected to condensation or dew.
G Apply sufficient thermal insulation to the refrigerant
tubing and drain pipes.
5
3. How to Install the Indoor Unit
3-1. Remove the Rear Panel from the Unit
(1) Remove and discard the set screw on the rear
panel. (Fig. 6)
(2) Press the 2 LL marks on the frame cover and disen-
gage the stationary tabs from the frame. (Fig. 7)
(3) Remove the rear panel.
Set screw only for transportation
NOTE
Tubing can be extended in 5 directions as shown in Fig.
8. Select the direction you need providing the shortest
run to the outside unit.
G When left tubing is to be done, switch the drain hose
and drain cap. (For details, refer to “Switching drain
hose and drain cap” on page 14.)
3-2. Make a Hole
(1) Place the rear panel from the indoor unit on the wall
at the location selected. Make sure the panel is horizontal, using a carpenter’s level or tape measure to
measure down from the ceiling. Wait until after cutting the hole before attaching the rear panel to the
wall.
(2) Determine which side of the unit you should make
the hole for tubing and wiring. (Fig. 9a or 9b)
NOTE
In the case of left-rear tubing, use the measurement
points from the edge of the rear panel for precise placement of the hose outlet. (Fig. 9a or 9b)
(3) Before making the hole, check carefully that no
studs or pipes are directly run behind the spot to be
cut.
Left
tubing
Left-rear
tubing
2-3/4" (70 mm)
Fig. 6
Rear panel
marks
Fig. 7
Right-rear
tubing
(recommended)
Right tubing
Downward tubing
Fig. 8
(KMS0772, KMS0972, KMS1272)
CAUTION
Also avoid areas where electrical wiring or conduits are
located.
The above precautions are also applicable if tubing
goes through the wall in any other location.
6
2-3/8" (60 mm)
Fig. 9a
(KMS1872, KMS2472)
Fig. 9b
Indoor
side
Outdoor
side
g
(4) Using a sabre saw, key hole saw or hole-cutting drill
attachment, cut a hole in the wall. See Table 4 and
Fig. 10.
Table 4
Hole Dia.
KMS0772/0972/1272 KMS1872/2472
2-9/16" (65 mm) 3-5/32" (80 mm)
NOTE
Hole should be made at a slight downward slant to the
outdoor side.
(5) Measure the thickness of the wall from the inside
edge to the outside edge and cut PVC pipe at a
slight angle 1/4" (6 mm) shorter than the thickness of
the wall. (Fig. 11)
(6) Place the plastic cover over the end of the pipe (for
indoor side only) and insert the pipe in the wall.
(Fig. 12)
3-3. Install the Rear Panel on the Wall
Be sure to confirm that the wall is strong enough to suspend the unit.
See either Item a) or b) below depending on the wall type.
a) If Wooden Wall
(1) Attach the rear panel to the wall with the 8 screws
provided. (Fig. 13a or 13b)
If you are not able to line up the holes in the rear
panel with the beam locations marked on the wall,
use rawl plugs or toggle bolts to go through the
holes on the panel or drill 3/16" (5 mm) dia. holes in
the panel over the stud locations and then mount the
rear panel.
PVC pipe (Locally purchased)
INSIDE OUTSIDE
Plastic cover
(Locally purchased)
(KMS0772, KMS0972, KMS1272)
Fig. 10
Cut at sli
Fig. 11
Wall
Fig. 12
ht angle
PVC pipe
Slight
angle
(2) Double check with a carpenter’s level or tape mea-
sure that the panel is level. This is important to
install the unit properly. (Fig. 14)
(3) Make sure the panel is flush against the wall. Any
space between the wall and unit will cause noise
and vibration.
b) If Block, Brick, Concrete or Similar Type Wall
Make 3/16" (4.8 mm) dia. holes in the wall. Insert rawl
plugs for appropriate mounting screws. (Fig. 15)
3/16"
(4.8 mm) dia. hole
Rawl plug
Fig. 15
Fig. 13a
(KMS1872, KMS2472)
Fig. 13b
Fig. 14
7
3-4. Remove the Grille to Install the Indoor Unit
3-4-1. Indoor unit types
(KMS0772, KMS0972, KMS1272)
Basically, these models can be installed and wired without
removing the grille. If access to any internal part is needed,
follow the steps as given below.
Air intake grille
Grille
CAUTION
Be sure to wear work gloves
during installation to avoid being
cut by the sharp aluminum fins
of the heat exchanger.
How to remove the grille
(1) Grasp both ends of the air intake grille, and remove it by
opening towards the front and pulling towards you. (Fig.
16a)
(2) Remove the 2 screws. (Fig. 16b)
(3) Remove the screw on the right side cover plate and
open the cover. (Fig. 17a)
(4) Take out the thermistor from the grille. (Fig. 17b)
(5) Pull the lower part of the grille toward you to remove.
(Fig. 18a)
(6) Use a standard screwdriver to push on the tabs to
remove the grille.
How to replace the grille
(1) Reinstall the grille into the lower part while aligning
its tabs on the upper part. (Fig. 18b) Insert the tabs
in the slots and push the lower part of the grille back
into position.
Screw cover
Thermistor
Fig. 17a
Ta b
*
Fig. 16a
Fig. 16b
Cover
Thermistor
Fig. 17b
*
Grille
Frame
Ta b
(2) Make sure that the grille and frame are firmly fitted
together by engaging the tabs.
(3) Attach the thermistor on the grille. (Fig. 17a)
(4) Close the cover and replace the screw. (Fig. 17a)
(5) Affix the grille with the 2 previously removed screws.
(Fig. 16b)
(6) Install the air intake grille.
(a) Allow the edge of the air intake grille to slide into
the top of the indoor unit, and then insert it all
the way inside. (Fig. 19a)
(b) Press the bottom right and left corners of the air
intake grille to attach it to the indoor unit. (Fig. 19b)
NOTE
Attach so that the round pins at the top right and left corners
of the air intake grille are inserted into the grooves at the top
right and left of the
indoor unit.
Fig. 18a
*
*
Fig. 18b
Groove
Pin
Fig. 19b
8
Fig. 19a
Pin
Groove
3-4-2. Indoor unit types
(KMS1872, KMS2472)
Basically, these models can be installed and wired without removing the grille. If access to any internal part is
needed, follow the steps as given below.
How to remove the grille
(1) Grasp both ends of the air intake grille, and remove
it by opening towards the front and pulling towards
you. (Fig. 16a-1)
(2) Remove the 3 screws. (Fig. 16b-1)
(3) Remove the screw on the right side cover plate and
open the cover. (Fig. 17a-1)
(4) Take out the thermistor from the grille. (Fig. 17b-1)
(5) Press the 3 tabs at the top of the grille and the 3
tabs on the front face to separate the grille from the
frame. (Fig. 18a-1)
(6) Pull the grill toward you to remove it.
How to replace the grille
Thermistor
Air intake grille
Fig. 16a-1
Fig. 16b-1
Cover
Grille
Thermistor
(1) When installing the grille, place the bottom of the
grille into the frame first. (Fig. 18b-1)
Then insert the tabs on the top of the grille and on
the front face into the frame.
(2) Make sure that the grille and frame are firmly fitted
together by engaging the tabs.
(3) Attach the thermistor on the grille. (Fig. 17a-1)
(4) Close the cover and replace the screw. (Fig. 17a-1)
(5) Affix the grille with the 3 previously removed screws.
(Fig. 16b-1)
(6) Install the air intake grille.
(a) Allow the edge of the air intake grille to slide into
the top of the indoor unit, and then insert it all
the way inside. (Fig. 19a-1)
(b) Press the bottom right and left corners and cen-
ter of the air intake grille to attach it to the indoor
unit. (Fig. 19b-1)
NOTE
Tab
Fig. 17a-1
Fig. 17b-1
Tab
Fig. 18a-1
Fig. 18b-1
Attach so that the round pins at the top right and left corners of the air intake grille are inserted into the grooves
at the top right and left of the indoor unit.
Fig. 19b-1
Fig. 19a-1
9
3-5. Shape the Indoor Side Tubing
(1) Arrangement of tubing by directions
a) Right or left tubing
Cut out the corner of the right/left frame with a
hacksaw or the like. (Figs. 20 and 21)
b) Right-rear or left-rear tubing
In this case, the corner of the frame need not be
cut.
(2) To mount the indoor unit on the rear panel:
Hang the 2 mounting slots of the unit on the
upper tabs of the rear panel. (Fig. 22)
3-6. Wiring Instructions
General precautions on wiring
(1) Before wiring, confirm the rated voltage of the unit as
shown on its nameplate, then carry out the wiring
closely following the wiring diagram.
(2) Provide a power outlet to be used exclusively for
each unit, with a power supply disconnect and circuit breaker for overcurrent protection provided in
the exclusive line.
Frame
Left tubing
outlet
Fig. 20
Frame
Right tubing
outlet
Fig. 21
(3) To prevent possible hazard due to insulation failure,
the unit must be grounded.
(4) Each wiring connection must be done tightly and in
accordance with the wiring system diagram. Wrong
wiring may cause the unit to misoperate or become
damaged.
(5) Do not allow wiring to touch the refrigerant tubing,
compressor, or any moving parts of the fan.
(6) Unauthorized changes in the internal wiring can be
very dangerous. The manufacturer will accept no
responsibility for any damage or misoperation that
occurs as a result of such unauthorized changes.
Fig. 22
10
3-7. Wiring Instructions for Inter-unit Connections
(1) Insert the inter-unit wiring (according to local codes)
into the through-the-wall PVC pipe. Run the wiring
toward the indoor side allowing approx. 10" (25 cm)
to extend from the wall face. (Fig. 24)
Rear
panel
Wall
Plastic
cover
(2) Grasp both ends of the air intake grille, and remove
it by opening towards the front and pulling towards
you.
(3) Remove the screw on the right side cover plate and
open the cover. (Fig. 25)
(4) Route the inter-unit wiring from the back of the
indoor unit and pull it toward the front for connection. (Figs. 26a and 26b)
(5) Connect the inter-unit wiring to the corresponding
terminals on the terminal plate (Figs. 26a and 26b)
while referring to the wiring diagram.
(6) Be sure to secure the wiring with the provided
clamp.
NOTE
When closing the air intake grille, press the bottom right
and left corners and center. (Fig. 27)
Please refer to “How to replace the grille” on page 8 or 9
for installing the air intake grille.
Wiring
10"
(25 cm)
Fig. 24
Cover
Fig. 25
Te r mi nal
plate
Fig. 27
Fig. 26a
Inter-unit
wiring
Earth
plate
Lock nut
Top of conduit
connector
Fig. 26b
11
Screw and
special washer
Ring
connector
Wire
WARNING
Loose wiring may cause the
terminal to overheat or result
in unit malfunction. A fire
hazard may also exist. Therefore, be sure all wiring is
tightly connected.
When connecting each power wire to the corresponding
terminal, follow the instructions “How to connect wiring
to the terminal” and fasten the wire securely tight with
the fixing screw of the terminal plate.
How to connect wiring to the terminal
a) For Indoor Unit
(1) Cut the wire end with a cutting pliers, then strip the
insulation to expose the wire about 9/32" (7 mm).
See the label (Fig. 28) near the terminal plate.
(2) Using a screwdriver, loosen the terminal screw on
the terminal plate.
(3) Insert the wire and tighten the terminal screw com-
pletely using a screwdriver.
b) For Outdoor Unit
I For solid core wiring (or F-cable)
(1) Cut the wire end with a cutting pliers, then strip the
insulation to expose the solid wire about 15/16" (25
mm). (Fig. 29)
(2) Using a screwdriver, remove the terminal screw(s)
on the terminal plate.
9/32"
STRIP
SIZE
(7 mm)
Fig. 28
Solid wire
Strip 15/16" (25 mm)
Insulation
Fig. 29
Stranded wire
Strip 3/8" (10 mm)
(ACTUAL
SIZE)
Loop
Ring
connector
(3) Using the pliers, bend the solid wire to form a loop
suitable for the terminal screw.
(4) Shape the loop wire properly, place it on the termi-
nal plate and fix it securely with the removed terminal screw using a screwdriver.
I For stranded wiring
(1) Cut the wire end with a cutting pliers, then strip the
insulation to expose the stranded wiring about 3/8"
(10 mm) and tightly twist the wire ends. (Figs. 30
and 31)
(2) Using a screwdriver, remove the terminal screw(s)
on the terminal plate.
(3) Using a ring connector fastener or pliers, securely
clamp each stripped wire end with a ring connector.
(Fig. 30)
(4) Place the ring connector wire, and replace and
tighten the removed terminal screw using a screwdriver. (Fig. 32)
Wire
Special
washer
Fig. 30
Twist wire ends
Fig. 31
Screw
Ring connector
Terminal plate
Fig. 32
12
3-8. Mounting
(1) To install the indoor unit, mount the indoor unit onto
the 2 tabs on the upper part of the rear plate.
(2) Hold down the air discharge outlet and press the
lower part of the indoor unit until it clicks to securely
fasten to the 2 tabs on the lower part of the rear
plate. (Fig. 33)
NOTE
For tubing, choose either the right or left tubing direction
and follow the steps below. This work can be made easier by placing padding material (such as styrofoam) at the
rear right side of the indoor unit. (Fig. 34)
I Right-side tubing
(1) Shape the refrigerant tubing so that it can easily go
into the wall hole. (Fig. 35)
Push
Fig. 33
(2) Push the wiring, refrigerant tubing, and drain hose
through the hole in the wall. Adjust the indoor unit so
it is securely seated on the rear panel. (Fig. 36)
(3) Carefully bend the tubing (if necessary) to run along
the wall in the direction of the outdoor unit and then
tape as far as the fittings. (See Caution on page 15
in the outdoor unit installation manual.) The drain
hose should come straight down the wall to a point
where water runoff won’t stain the wall.
(4) Connect the refrigerant tubing to the outdoor unit.
(After performing a leak test on the connecting part,
insulate it with the tubing insulation. (Fig. 37a))
Also, refer to Section 3-6. Tubing connections in the
outdoor unit installation manual.
(5) Assemble the refrigerant tubing, drain hose, and
conduit (including inter-unit wiring) as shown in
Fig. 37b.
Refrigerant tubing
Padding material
Fig. 34
Rear panel
Cover
Refrigerant
tubing
Inter-unit
wiring
Drain hose
Fig. 35
Fig. 37a
Insulation
Conduit
Inter-unit wiring
Fig. 37b
Drain hose
13
Fig. 36
I Left-side tubing
Rear panel
(1) Lead the tubing and drain hose through the wall,
allowing sufficient length for connection. Then bend
the tubing using a tube bender to make the attachment. (Fig. 38)
(2) Switch the drain hose and drain cap.
Switching drain hose and drain cap
(a) Locate the drain hose and the drain cap. (Fig.
39)
(b) Remove the screws fastening the drain hose on
the right side, and pull out the drain hose to
remove it. (Fig. 39)
(c) Apply moderate force to pull off the drain cap
on the left side. (If you cannot pull it off by
hand, use a long-nose pliers.)
(d) Reattach the drain hose to the left side and the
drain cap to the right side. (Fig. 40a)
Drain hose
Slide the drain hose fully onto the drain pan outlet
until the drain hose edge is pushed into the insulation. Check that the screw holes in the drain bracket
and the drain pan outlet are aligned and securely in
contact, then fasten them with the screw. (After
attaching the drain hose, check that it is attached
securely.) (Fig. 40c)
Hole in wall
Drain hose
Drain cap
Bent part
Fig. 38
Fig. 39
Wide tube
Narrow tube
Drain cap
Drain hose
Clamp
Drain cap
Use a Phillips screwdriver to push the drain cap in
firmly. (If it is difficult to push in, wet the cap with
water first.)
(3) Install the indoor unit on the rear panel.
(4) Connect the tubing and wiring led inside from out-
doors.
(5) After completing a leak test, bundle the tubing
together with armoring tape and store it inside the
tubing storage area at the back of the indoor unit
and hold it with clamps. (Figs. 40a and 41)
Insulation
Drain bracket
Drain hose
Fig. 40c
Fig. 40a
Screw hole
Drain bracket
Conduit
Drain pan outlet
Drain hose
Screw
Fig. 40b
Refrigerant tubing
Inter-unit wiring
14
Fig. 41
To unmount indoor unit
WARNING
Risk of Electric Shock
Press the 2 LL marks on the lower part of the indoor unit
and unlatch the tabs. Then lift the indoor unit and
unmount. (Fig. 42)
3-9. Drain Hose
a) The drain hose should be slanted downward to the
outdoors. (Fig. 43)
b) Never form a trap in the course of the hose.
c) If the drain hose will run in the room, insulate the
hose with insulation* so that chilled condensation
will not damage furniture or floors. (Fig. 44)
* Foamed polyethylene or its equivalent is recom-
mended.
Do not supply power to the
unit or operate it until all
tubing and wiring to the outside unit are completed.
Indoor
unit
Push
Fig. 42
Slant
Drain
hose
Insulation material
(Locally purchased)
must be used.
Fig. 43
Condensation
Fig. 44
15
4. How to Test Run the Air Conditioner
IMPORTANT
After turning on power to the air conditioner, use the remote
controller and follow the steps below to conduct the test run.
(1) Set the remote controller in Test Run mode.
(Fig. 59a)
a) Press and hold the ION button.
b) Then press and hold the 1HR TIMER button.
c) At the same time, press the ACL (reset) button once.
Use a pointed object such as the tip of a pen to press
the ACL button.
• After a few seconds, “ ” appears and “oP-1” blinks in
the remote controller display area.
(Fig. 59b)
d) Release the 1HR TIMER button.
e) Release the ION button.
(2) Start Cooling mode test run by pressing the ON/OFF
operation button of the remote controller. (Fig. 59a)
• This starts the fan producing uncooled forced air with
the 4 indicator lamps (OPERATION lamp, TIMER
lamp, QUIET lamp, and ION lamp) on the main unit
blinking. (Fig. 59c)
• After 3 minutes, the system shifts into cooling opera-
tion, and cool air will start to be felt. Cool mode test
run is unaffected by the room temperature.
(3) Press the ON/OFF operation button of the remote con-
troller again to stop the test run. (Fig. 59a)
(4) Finally press the ACL (reset) button of the remote con-
troller to release it from Test Run mode to return to normal mode. (Fig. 59a)
• “ ” and “oP-1” will disappear from the remote con-
troller display area.
ION
button
A
Fig. 59a
ON/OFF
operation
button
1HR.
TIMER
button
ACL
(Reset)
button
After the test run is completed, be sure to press the ACL
(reset) button to return to normal mode. The air conditioner
will not operate correctly if this is not done.
Fig. 59b
OPERATION lamp
TIMER lamp
QUIET lamp
ION lamp
Fig. 59c
16
5. Remote Control Unit Installation Position
The remote control unit can be operated from either a
non-fixed position or a wall-mounted position.
To ensure that the air conditioner operates correctly, do
not install the remote control unit in the following places:
G In direct sunlight
G Behind a curtain or other place where it is covered
G More than 26' (8 m) away from the air conditioner
G In the path of the air conditioner’s airstream
G Where it may become extremely hot or cold
G Where it may be subject to electrical or magnetic
interference
G Where there is an obstacle between the remote con-
trol unit and the air conditioner (since a check signal
is sent from the remote control unit every 5 minutes)
5-1. Mounting on a Wall
Before mounting the remote control unit, press the
ON/OFF operation button at the mounting location to
make sure that the air conditioner operates from that
location. The indoor unit should make a beeping sound
to indicate that it has received the signal.
Remote control unit mount
Mounting screws
5/32 × 5/8" (4 × 16 mm)
(Included)
Rear side
Press
Set in
place
Hole
To prevent loss of the remote control
unit, you can connect the remote
control unit to the mount by passing
a string through the remote control
unit and attachment hole.
To take out the remote control unit, pull it forward.
Fig. 61
17
6. Address Switch
6-1. Address Setting of the Remote Control Unit
The address can be set in order to prevent interference
between remote controllers when two Sanyo indoor units
are installed near each other. The address is normally
set to “A.” To set a different address, it is necessary to
change the address on the second remote controller.
Ta b
NOTE
Once changed, you cannot restore the original address
setting of the air conditioner.
(1) Switch on the power source.
(2) Break the address-setting tab marked “A” on the
second remote controller to change the address
(Fig. 62). When the tab is removed, the address is
automatically set to B (Fig. 63).
(3) Press and hold the remote controller ION button and
1 HR TIMER button. At the same time, press the
ACL(reset) button. Use a thin object such as the tip
of a pen to press the ACL button. When this has
been done, “oP-1” (test run) appears, blinking, in the
remote controller clock display area.
(4) Each time the 1 HR TIMER button is pressed, the
display changes as shown below. Press this button
2 times to change the display to “oP-7” (address
setting). (Fig. 64)
Te st run mode
Fig. 62
ACL button
Fig. 63
Selfdiagnostic mode
Adress setting mode
(5) “oP-7” has now been selected for address setting.
(6) Press the ON/OFF operation button on the remote
controller. (Fig. 64) Check that the “beep”signalreceived sound is heard from the second indoor unit
(approximately 5 times). The sound you hear is the
signal that the remote controller address has been
changed.
(7) Finally press the remote controller ACL (reset) but-
ton to cancel the blinking “oP-7” display.
(Fig. 64)
Changing of the second remote controller address is
now completed.
ION
button
A
Fig. 64
ON/OFF
operation
button
1HR.
TIMER
button
ACL
(Reset)
button
18
7. Connecting a Home Automation device
The HA (white) 4P terminal is located on the indoor unit PCB. If a HA device will
be used, connect it to this terminal.
8. Installation Check Sheet
The strength of the installation location is sufficient to support the A/C weight.
The indoor and outdoor units are installed level and vertically.
The power and voltage are as specified.
Inter-unit cables are securely inserted into the
terminal block.
Inter-unit cables are securely fixed.
The power cord and inter-unit cables are not connected anywhere along their
paths.
The ground wire is securely connected.
Thermal insulation has been applied to the tubing connections.
Drain connections are secure and water drains properly.
Putty has been used to close the hole in the wall.
Remote controller signals are being positively received.
19
For Parts Service Contact
SANYO Fisher Service Company
A Division of SANYO North America Corporation
1165 Allgood Road, Suite 22, Marietta, GA 30062 U.S.A.
Sanyo Canada Inc.
1-300 Applewood Crescent, Concord, Ontario L4K 5C7, CANADA
Sept. / 2006 (T)
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