TECHNICAL & SERVICE MANUAL
SAP-KRV93EH + SAP-CRV93EH
SAP-KRV123EH + SAP-CRV123EH
DC INVERTER SPLIT SYSTEM AIR CONDITIONER
SAP-CRV93EH
SAP-CRV123EH
AIR CONDITIONERIMPORTANT
These air conditioners employ new refrigerant R410A.
Pay special attention when servicing the unit.
SAP-KRV93EH
SAP-KRV123EH
FILE NO.
Indoor Unit
Outdoor Unit
Indoor Model No. Product Code No. SAP-KRV93EH 1 852 089 81 SAP-KRV123EH 1 852 089 80
Outdoor Model No. Product Code No. SAP-CRV93EH 1 852 089 85 SAP-CRV123EH 1 852 089 84
IMPORTANT!
Please Read Before Starting
This air conditioning system meets strict safety and oper-ating 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.
This symbol refers to a haz-ard 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
When Wiring
ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH. ONLY A QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM.
• Do not supply power to the unit until all wiring and tub-ing 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 pre-vents 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 refriger-ant 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.
WARNING
WARNING
CAUTION
Table of Contents
Page
1.
OPERATING RANGE
...
4
2.
SPECIFICATIONS
2-1. Unit Specifications...
5
2-2. Major Component Specifications...
7
2-3. Other Component Specifications...
11
3.
DIMENSIONAL DATA
...
12
4.
REFRIGERANT FLOW DIAGRAM
4-1. Refrigerant Flow Diagram...
14
5.
PERFORMANCE DATA
5-1. Temperature Charts...
15
5-2. Air Throw Distance Charts...
17
5-3. Operating Frequency Charts ...
19
6.
ELECTRICAL DATA
6-1. Electrical Characteristics ...
23
6-2. Electric Wiring Diagrams ...
24
7.
INSTALLATION INSTRUCTIONS
7-1. Installation Site Selection ...
26
7-2. Recommended Wire Length and Diameter ...
28
7-3. Remote Control Unit Installation Position...
29
7-4. How to Test Run the Air Conditioner ...
30
7-5. Remove the Grille to Install the Indoor Unit...
31
8.
MAINTENANCE
8-1. Address Setting of the Remote Control Unit ...
32
8-2. Disconnecting and Connecting Positive Connector for Outdoor Unit...
33
9.
FUNCTIONS
9-1. Operation Functions ...
34
9-2. Protective Functions...
36
10. TROUBLESHOOTING
...
38
11. CHECKING ELECTRICAL COMPONENTS
11-1. Measurement of Insulation Resistance ...
43
11-2. Checking Continuity of Fuse on PCB Ass’y ...
44
12. REFRIGERANT R410A:
SPECIAL PRECAUTIONS WHEN SERVICING UNIT
...
45
INSTRUCTION MANUAL
...
52
1. OPERATING RANGE
Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp.
Cooling Maximum 32°C D.B. / 23°C W.B. 43°C D.B.
Minimum 19°C D.B. / 14°C W.B. 19°C D.B.
Heating Maximum 27°C D.B. 24°C D.B. / 18°C W.B.
DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks: Rating conditions are:
Cooling: Indoor air temperature 27°C D.B. / 19°C W.B. Outdoor air temperature 35°C D.B. / 24°C W.B. Heating: Indoor air temperature 20°C D.B.
2. SPECIFICATIONS
2-1. Unit Specifications
Indoor Unit SAP-KRV93EHOutdoor Unit SAP-CRV93EH
Power Source 220 – 240V Single-phase 50Hz
Performance Cooling Heating
Capacity kW 2.65 (0.9 – 3.2) 3.60 (0.9 – 5.0)
BTU/h 9,000 (3,100 – 10,900) 12,300 (3,100 – 17,100)
Air circulation (High) m3/h 480 530
Moisture removal (High) Liters/h 1.6 —
Electrical Rating Cooling Heating
Available voltage range V 198 – 264
Running amperes A 3.86 (1.28 – 5.88) 4.81 (1.21 – 6.47)
Power input W 755 (250 – 1,150) 995 (250 – 1,340)
Power factor % 85 90
C.O.P. W/W 3.51 3.62
Compressor locked rotor amperes A 15
Features
Controls / Temperature control Microprocessor / I.C. thermister
Control unit Wireless remote control unit
Timer ON / OFF 24 hours & Daily program, 1-hour OFF
Fan speeds Indoor / Outdoor 3 and Auto / 1 (Hi)
Airflow direction (Indoor) Horizontal Manual
Vertical Auto
Air filter Washable, Anti-Mold
Compressor Rotary (DC inverter)
Refrigerant / Amount charged at shipment g R410A / 950
Refrigerant control Electric expansion valve
Operation sound Indoor: Hi / Me / Lo dB-A 34 / 31 / 28 34 / 31 / 28
Outdoor: Hi dB-A 46 47
Refrigerant tubing connections Flare type
Max allowable tubing length at shipment m 7.5
Refrigerant Narrow tube mm (in.) 6.35 (1/4)
tube diameter Wide tube mm (in.) 9.52 (3/8)
Refrigerant tube kit / Accessories Optional / Air clean filter
Voltage Rating 230V
Dimensions & Weight Indoor Unit Outdoor Unit
Unit dimensions Height mm 285 548
Width mm 825 720
Depth mm 189 265
Package dimensions Height mm 350 600
Width mm 900 856
Depth mm 255 362
Weight Net kg 9.0 34.0
Shipping kg 11.0 36.0
Indoor Unit SAP-KRV123EH
Outdoor Unit SAP-CRV123EH
DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks: Rating conditions are:
Cooling: Indoor air temperature 27°C D.B. / 19°C W.B. Outdoor air temperature 35°C D.B. / 24°C W.B. Heating: Indoor air temperature 20°C D.B.
Power Source 220 – 240V Single-phase 50Hz
Performance Cooling Heating
Capacity kW 3.50 (0.9 – 3.8) 4.20 (0.9 – 5.8)
BTU/h 11,900 (3,100 – 13,000) 14,300 (3,100 – 19,800)
Air circulation (High) m3/h 500 530
Moisture removal (High) Liters/h 2.0 —
Electrical Rating Cooling Heating
Available voltage range V 198 – 264
Running amperes A 5.21 (1.19 – 6.21) 5.48 (1.18 – 7.09)
Power input W 1,090 (250 – 1,300) 1,165 (250 – 1,500)
Power factor % 91 92
C.O.P. W/W 3.21 3.61
Compressor locked rotor amperes A 15
Features
Controls / Temperature control Microprocessor / I.C. thermostat
Control unit Wireless remote control unit
Timer ON / OFF 24 hours & Daily program, 1-hour OFF
Fan speeds Indoor / Outdoor 3 and Auto / 1 (Hi)
Airflow direction (Indoor) Horizontal Manual
Vertical Auto
Air filter Washable, Anti-Mold
Compressor Rotary (DC inverter)
Refrigerant / Amount charged at shipment g R410A / 1,100
Refrigerant control Electric expansion valve
Operation sound Indoor: Hi / Me / Lo dB-A 36 / 33 / 29 34 / 31 / 29
Outdoor: Hi dB-A 47 49
Refrigerant tubing connections Flare type
Max allowable tubing length at shipment m 7.5
Refrigerant Narrow tube mm (in.) 6.35 (1/4)
tube diameter Wide tube mm (in.) 9.52 (3/8)
Refrigerant tube kit / Accessories Optional / Air clean filter
Voltage Rating 230V
Dimensions & Weight Indoor Unit Outdoor Unit
Unit dimensions Height mm 285 548
Width mm 825 720
Depth mm 189 265
Package dimensions Height mm 350 600
Width mm 900 856
Depth mm 255 362
Weight Net kg 9.0 35.0
Shipping kg 11.0 37.0
2-2. Major Component Specifications
2-2-1. Indoor Unit
Indoor Unit SAP– KRV93EH
DATA SUBJECT TO CHANGE WITHOUT NOTICE. Control PCB
Part No. CB-KRV93EH (POW-KRV93GJH)
Controls Microprocessor
Control circuit fuse 250V 3.15A
Flap Motor and Louver Motor
Type Stepping motor
Model MP24Z3-12V
Rating DC 12V
Coil resistance (Ambient temp. 25°C) Ω Each pair of terminals: 400 ± 7% Heat Exchanger Coil
Coil Aluminum plate fin / Copper tube
Rows 2
Fin pitch mm 1.3
Face area m2 0.188
Fan & Fan Motor
Type Fan / Fan motor Cross-flow / AC motor
Q’ty … Dia. and length mm 1 … D92 / L634
Fan motor model … Q’ty IBH-884-066 … 1
No. of poles … Rough measure rpm (Cool / Heat) 4 … 1,200 / 1,250
Nominal output W 30
Coil resistance (Ambient temp. 20°C) Ω BRN – WHT: 234
PNK (RED) – WHT: 209
— : —
Safety devices Type Thermal fuse
Operating temp. Open °C 130
Close —
Run capacitor µF 1.2
VAC 440
Indoor Unit SAP– KRV123EH
DATA SUBJECT TO CHANGE WITHOUT NOTICE. Control PCB
Part No. CB-KRV123EH (POW-KRV93GJH)
Controls Microprocessor
Control circuit fuse 250V 3.15A
Flap Motor and Louver Motor
Type Stepping motor
Model MP24Z3-12V
Rating DC 12V
Coil resistance (Ambient temp. 25°C) Ω Each pair of terminals: 400 ± 7% Heat Exchanger Coil
Coil Aluminum plate fin / Copper tube
Rows 2
Fin pitch mm 1.3
Face area m2 0.188
Fan & Fan Motor
Type Fan / Fan motor Cross-flow / AC motor
Q’ty … Dia. and length mm 1 … D92 / L634
Fan motor model … Q’ty IBH-884-066 … 1
No. of poles … Rough measure rpm (Cool / Heat) 4 … 1,250 / 1,250
Nominal output W 30
Coil resistance (Ambient temp. 20°C) Ω BRN – WHT: 234
PNK (RED) – WHT: 209
— : —
Safety devices Type Thermal fuse
Operating temp. Open °C 130
Close —
Run capacitor µF 1.2
VAC 440
2-2-2. Outdoor Unit
Outdoor Unit SAP– CRV93EH
DATA SUBJECT TO CHANGE WITHOUT NOTICE. Compressor
Type DC Rotary (Hermetic)
Compressor model / Nominal output G4C090LU1ER / 600W
Compressor oil … Amount cc FV50S … 320
Coil resistance (Ambient temp. 20°C) Ω U – V: 0.81
V – W: 0.81 W – U: 0.81 Safety devices
CT (Peak current cut-off control) YES
Compressor discharge temp. control YES
Operation cut-off control in abnormal ambient temp. —
Run capacitor µF —
VAC —
Crankcase heater —
Fan & Fan Motor
Type … Fan / Fan motor Propeller / AC motor
Q’ty … Dia. mm 1 … 370
Fan motor model … Q’ty IB-976-501 … 1
No. of poles … Rough measure rpm (Cool / Heat) 6 … 700 / 700
Nominal output W 20
Coil resistance (Ambient temp. 20°C) Ω WHT – BRN: 213
RED (PNK) – WHT: 168 — : —
Safety devices Type Thermal fuse
Operating temp. Open °C 150
Close °C —
Run capacitor on control PCB (A) µF 2.0
VAC 440
Heat Exchanger Coil
Coil Aluminum plate fin / Copper tube
Rows 2
Fin pitch mm 1.4
Face area m2 0.288
External Finish Acrylic baked-on enamel finish
Control PCB (A) / Control PCB (B)
Part No. CB-CRV93EH (POW-CRV93GJH)
Controls Microprocessor
Outdoor Unit SAP– CRV123EH
DATA SUBJECT TO CHANGE WITHOUT NOTICE. Fan & Fan Motor
Type … Fan / Fan Motor Propeller / DC Motor
Q’ty … Dia. mm 1 … 370
Fan motor model … Q’ty DAJ12-55J71-C … 1
No. of poles … Rough measure rpm (Cool / Heat) 8 … 750 / 750
Nominal output W 50
Coil resistance (Ambient temp. 20°C) Ω —
— —
Safety devices Type —
Operating temp. Open °C —
Close °C —
Run capacitor on control PCB (A) µF —
VAC —
Heat Exchanger Coil
Coil Aluminum plate fin / Copper tube
Rows 2
Fin pitch mm 1.4
Face area m2 0.367
External Finish Acrylic baked-on enamel finish
Control PCB (A) / Control PCB (B)
Part No. CB-CRV123EH (POW-CRV123GJH)
Controls Microprocessor
Control circuit fuse 250V, 20A
Compressor
Type DC Rotary (Hermetic)
Compressor model / Nominal output G4C090LU1ER / 600W
Compressor oil … Amount cc FV50S … 320
Coil resistance (Ambient temp. 20°C) Ω U – V: 0.81
V – W: 0.81 W – U: 0.81 Safety devices
CT (Peak current cut-off control) YES
Compressor discharge temp. control YES
Operation cut-off control in abnormal ambient temp. —
Run capacitor µF —
VAC —
2-3. Other Component Specifications
Indoor Unit SAP– KRV93EHSAP– KRV123EH
Outdoor Unit SAP– CRV93EH SAP– CRV123EH 0 0 10 20 30 40 50 60 70 80 90 40 60 80 100 120 140 160 180 200 20 10 1 2 3 4 5 6 7 8 9 10 15 20 25 30 35 40
• Indoor air temp sensor
• Indoor heat exchanger sensor • Compressor temp sensor
Resistance (k Ω ) Resistance (k Ω ) Temperature (°C) Temperature (°C)
• Outdoor air temp sensor
• Outdoor heat exchanger sensor 40 35 30 25 20 15 10 5 0 –20 –15 –10 –5 0 5 10 15 20 Temperature (°C) Resistance (k Ω )
12 5 815 5 825 285 56 7 189 3 45 24.5 56 815 56 79.5 40 40 450 187.5 178.9 Wide tube ø9.52(3/8") Drain hose ø18 Narrow tube ø6.35(1/4") 187.5 178.9 86.5 86.5 45 360 (ø65) 308 187.5 187.5 92.5 122.5 70 825 450 45 285 40 (ø65) 24.5 40 196 46.5 27.4 70 32 133.8 52 23
3. DIMENSIONAL DA
T
A
Indoor Unit SAP-KRV93EH SAP-KRV123EH Unit: mmOutdoor Unit SAP-CRV93EH SAP-CRV123EH
720 72
Wide tube service valve ø9.52 (3/8") 2-ø12 holes
Narrow tube service valve ø6.35 (1/4") 548 16 109 55 155 2 91 265 91 290 316 538 275 AIR DISCHARGE (12 class only) AIR INTAKE AIR INT AKE 12 ID:2-ø23.6 ID:ø18 Unit: mm
4. REFRIGERANT FLOW DIAGRAM
4-1. Refrigerant Flow Diagram
Indoor Unit SAP-KRV93EH Outdoor Unit SAP-CRV93EH
SAP-CRV123EH SAP-CRV123EH Compressor 4-way valve Accumulator Wide tube service valve Wide tube O.D. ø9.52 mm (3/8 ") Narrow tube service valve Narrow tube O.D. ø6.35 mm (1/4") Heat exchanger Heat exchanger Muffler Capillary tube for split flow Cooling cycle (Defrosting cycle) Heating cycle
Indoor unit Outdoor unit
Electric expansion valve
M
Modulator (12 class only) Strainer Muffler (12 class only)Insulation of Refrigerant Tubing
Because capillary tubing is used in the outdoor unit, both the wide and narrow tubes of this air conditioner become cold. To prevent heat loss and wet floors due to dripping of
condensation, both tubes must be well insulated with a proper insulation material. The thickness of the insulation should be a min. 8 mm.
After a tube has been insulated, never try to bend it into a narrow curve because it can cause the tube to break or crack. IMPORTANT Wide tube Thickness: Min. 8 mm Insulation Narrow tube Thickness: Min. 8 mm IMPORTANT CAUTION
5. PERFORMANCE DATA
5-1. Temperature Charts
Indoor Unit SAP-KRV93EHOutdoor Unit SAP-CRV93EH
Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in heating mode. (Refer to “9-2. Overload prevention during heating.”)
●… Points of rating condition
Black dots in above charts indicate the following rating conditions.
Cooling: Indoor air temperature 27°C D.B. / 19°C W.B. Heating: Indoor air temperature 20°C D.B.
NOTE
■
Cooling Characteristics
■
Heating Characteristics
25 30 35 40 25 30 35 40 17 16 15 14 13 12 11 10 –5 0 5 10 15 20 25 3 2 8 9 6 7 4 5 –5 0 5 10 15 20 25 60 55 50 45 40 35 30 25
Outdoor inlet air D.B. temp.( C)
Outdoor inlet air D.B. temp.( C) Outdoor inlet air D.B. temp.( C)
Outdoor inlet air D.B. temp.( C) Outdoor inlet air D.B. temp.( C)
Operating current (A) Operating current (A)
Indoor discharge air temperature ( C) Indoor discharge air temperature ( C)
–5 0 5 10 15 20 25
Outdoor inlet air D.B. temp.( C)
25 30 35 40 4 5 3 2 1.2 (11.2) 1.3 (12.2) 1.1 (10.2) 1.0 (9.2) 3.5 (34.7) 3.0 (29.6) 2.5 (24.5) 2.0 (19.4)
Low pressure at wide tube service valve
MPa (kgf/cm
2G)
High pressure at wide tube service valve
MPa (kgf/cm
2G)
27°C
24°C
Indoor Air Temp.30
°C
24°C
27°C
Indoor Air Temp.30
°C
27°C
24°C Indoor Air Temp.30
°C
20°C
17°C
Indoor Air Temp.23
°C
20°C 17°C Indoor Air Temp.23°C
20°C 17°C
Indoor Air Temp.23
Indoor Unit SAP-KRV123EH
Outdoor Unit SAP-CRV123EH
Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in heating mode. (Refer to “9-2. Overload prevention during heating.”)
●… Points of rating condition
Black dots in above charts indicate the following rating conditions.
Cooling: Indoor air temperature 27°C D.B. / 19°C W.B. Heating: Indoor air temperature 20°C D.B.
NOTE
■
Cooling Characteristics
■
Heating Characteristics
Low pressure at wide tube service valve
MPa (kgf/cm
2G)
High pressure at wide tube service valve
MPa (kgf/cm
2G)
Outdoor inlet air D.B. temp.( C) Outdoor inlet air D.B. temp.( C)
Outdoor inlet air D.B. temp.( C) Outdoor inlet air D.B. temp.( C)
Outdoor inlet air D.B. temp.( C) Outdoor inlet air D.B. temp.( C)
Operating current (A) Operating current (A)
Indoor discharge air temperature ( C) Indoor discharge air temperature ( C)
25 1.3 (12.2) 1.0 (9.2) 1.1 (10.2) 30 35 40 1.2 (11.2)
Outdoor fan speed
High Low 25 4 6 8 9 3 2 5 7 30 35 40
Outdoor fan speed
High Low 25 8 10 12 14 16 18 30 35 40
Outdoor fan speed
High Low 5 0 5 10 15 20 25 2.0 (19.4) 2.5 (24.5) 3.0 (29.6) 3.5 (34.7) 5 0 5 4 6 8 9 3 2 5 7 10 15 20 25 5 0 5 10 30 6 25 35 40 45 50 55 20 60 15 20 25 27°C 24°C Indoor Air Temp.30
°C 20
°C
17°C Indoor Air Temp.23
°C
Indoor Air Temp.23 °C 17°C 20°C
Indoor Air Temp.30°C
24°C 27°C 17°C 23°C 20°C 27°C 24°C 30°C
5-2. Air Throw Distance Charts
Horizontal distance (m)
Axis air velocity (m/s) Vertical distance (m)
Room air temp. : 20°C Fan speed : High Heating
Horizontal distance (m)
Axis air velocity (m/s) Vertical distance (m)
Room air temp. : 27°C Fan speed : High Cooling 1 2 3 4 1 2 3 4 5 6 7 8 9
: Flap angle 0° , : Axis air velocity 0°
: Flap angle 30°, : Axis air velocity 30°
1
2
3
4
1 2 3 4 5 6 7 8 9
: Flap angle 45° , : Axis air velocity 45°
: Flap angle 60° , : Axis air velocity 60°
Horizontal distance (m)
Axis air velocity (m/s) Vertical distance (m)
Room air temp. : 20°C Fan speed : High Heating
Horizontal distance (m)
Axis air velocity (m/s) Vertical distance (m)
Room air temp. : 27°C Fan speed : High Cooling 1 2 3 4 1 2 3 4 5 6 7 8 9
: Flap angle 0° , : Axis air velocity 0°
: Flap angle 30°, : Axis air velocity 30°
1
2
3
4
1 2 3 4 5 6 7 8 9
: Flap angle 45° , : Axis air velocity 45°
: Flap angle 60° , : Axis air velocity 60°
5-3. Operating Frequency Charts
0 1 2 3 4 5 0 10 20 30 40 50 60 70 80 Operating Freqency (Hz) Cooling Capacity (kW) 54 Min. Center Max. 0 200 400 600 800 1000 1200 0 10 20 30 40 50 60 70 80 Operating Freqency (Hz) Power Input (W) 54 Min. Center Max. 755 2.65Indoor Unit SAP– KRV93EH
Outdoor Unit SAP– CRV93EH
230V Single-phase 50Hz
NOTE
1) Rating conditions in cooling are:
Indoor: 27°C D.B. / 19°C W.B. Outdoor: 35°C D.B. / 24°C W.B. 2) Fan speed: High
0 1 2 3 4 5 0 20 40 60 80 100 120 Operating Freqency (Hz) Heating Capacity (kW) 3.6 Min. Center Max. 75 0 200 400 600 800 1000 1200 1400 0 20 40 60 80 100 120 Operating Freqency (Hz) Power Input (W) 995 Min. Center Max. 75 230V Single-phase 50Hz NOTE
1) Rating conditions in heating are: Indoor: 20°C D.B.
Outdoor: 7°C D.B. / 6°C W.B. 2) Fan speed: High
0 1 2 3 4 5 0 10 20 30 40 50 60 70 80 90 Operating Freqency (Hz) Cooling Capacity (kW) 3.5 Min. Center Max. 78 0 200 400 600 800 1000 1200 1400 0 10 20 30 40 50 60 70 80 90 Operating Freqency (Hz) Power Input (W) 1090 Min. Center Max. 78
Indoor Unit SAP– KRV123EH
Outdoor Unit SAP– CRV123EH
230V Single-phase 50Hz
NOTE
1) Rating conditions in cooling are:
Indoor: 27°C D.B. / 19°C W.B. Outdoor: 35°C D.B. / 24°C W.B. 2) Fan speed: High
0 1 2 3 4 5 6 0 20 40 60 80 100 120 Operating Freqency (Hz) Heating Capacity (kW) 4.2 Min. Center Max. 81 0 200 400 600 800 1000 1200 1400 1600 0 20 40 60 80 100 120 Operating Freqency (Hz) Power Input (W) 1165 Min. Center Max. 81 230V Single-phase 50Hz NOTE
1) Rating conditions in heating are: Indoor: 20°C D.B.
Outdoor: 7°C D.B. / 6°C W.B. 2) Fan speed: High
6. ELECTRICAL DATA
6-1. Electrical Characteristics
Indoor Unit SAP-KRV93EH
Outdoor Unit SAP-CRV93EH
Indoor Unit Outdoor Unit Complete Unit
Fan Motor Fan Motor Compressor
Performance at 230V Single-phase 50Hz
Rating conditions Running amp. A 0.17
Power input kW 0.033
0.21 0.048 Rating conditions: Indoor air temperature: 27°C D.B. / 19°C W.B.
Outdoor air temperature: 35°C D.B.
Rating conditions: Indoor air temperature 20°C D.B.
Outdoor air temperature 7°C D.B. / 6°C W.B.
Heating Cooling 3.48 0.674 3.86 0.755
Indoor Unit Outdoor Unit Complete Unit
Fan Motor Fan Motor Compressor
Performance at 230V Single-phase 50Hz
Rating conditions Running amp. A 0.17
Power input kW 0.035 0.21 0.048 4.43 0.912 4.81 0.995
Indoor Unit SAP-KRV123EH
Outdoor Unit SAP-CRV123EH
Indoor Unit Outdoor Unit Complete Unit
Fan Motor Fan Motor Compressor
Performance at 230V Single-phase 50Hz
Rating conditions Running amp. A 0.17
Power input kW 0.035
0.14 0.030 Rating conditions: Indoor air temperature: 27°C D.B. / 19°C W.B.
Outdoor air temperature: 35°C D.B.
Rating conditions: Indoor air temperature: 20°C D.B.
Outdoor air temperature: 7°C D.B. / 6°C W.B.
Heating Cooling 4.90 1.025 5.21 1.090
Indoor Unit Outdoor Unit Complete Unit
Fan Motor Fan Motor Compressor
Performance at 230V Single-phase 50Hz
Rating conditions Running amp. A 0.17
Power input kW 0.035 0.14 0.030 5.17 1.100 5.48 1.165
24
6-2. Electric W
iring Diagrams
Indoor Unit SAP-KRV93EH Outdoor Unit SAP-CRV93EH WARNINGTo avoid electrical shock hazard, be sure to
disconnect power before checking, servicing
and/or cleaning any electrical parts.
5 5 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 2 2 1 1 6 6 5 5 4 4 3 3 2 2 1 1 6 6 W W W W W W W W W W W W W W W W W 3 2 1 3 3 2 2 1 1 3 3 2 2 1 1 1 1 2 2 RV YEL YEL B LK BLK BLK BLK COMP R E SSO R TH E R M IS TO R FE RR IT E CO R E CO IL TH E R M IS TO R O U TD OO R TH E R M IS TO R YL 2P CO NN E C TO R OUTDOOR RV1 RV2 MV (BLK) MAGNETIC COIL REACTANCE L2 L1 IN+ IN– OUT– OUT+ IN1 IN2 S1 C E W U V T-RUN/TEST FM FM H (WHT) COIL/COMP(WHT) B LK BLK B LU BLU B R N W HT BLU B LU BLU YL 3P CO NN E C TO R V L3 P CO NN E C TO R B R N W HT (P N K ) R E D 4-WAY VALVE FM FAN MOTOR C A P A C IT O R W BLU WHT RED W HT B LU (P N K ) R E D CM COMPRESSOR MOTOR GRN/YEL S/U C/W R / V GRN/YEL G R N /YEL BLK WHT RED O R G B LK W HT W HT O R G R E D G R Y W HT YEL BLK FE RR IT E CO R E TERMINAL BASE MV RED CONTROLLER
Outdoor Unit : SAP-CRV93EH Indoor Unit : SAP-KRV93EH
8FA-2-5257-145XX-0 YEL BRN BLU PNK RED BRN BRN TERMINAL BASE PO W E R S U PP LY BLU EARTH RED GRY GRY EVAPORATOR 5 4 3 2 1 5 54 43 3 BLK BLK 2 2 1 1 4 4 3 3 2 21 1 CONTROLLER THERMISTOR (ROOM) THERMISTOR (COIL) 8FA-2-5257-143XX-1 FLAP LAMP 9P(WHT) IN D L A MP A SS Y FAN 5P(WHT) FLAP 5P(WHT) POWER RELAY RY01 HALL IC 3P(WHT) FMC1 FMC2 4P(WHT) ROOM/COIL 4P(WHT) BLK RED WHT (RED) PNK 2 2 YEL BLU GRN/YEL FAN MOTOR CAPACITOR FAN MOTOR FLAP MOTOR PNK 3 3 1 1 5 53 31 1 3 2 1 5 4 WHT WHT WHT 5 5 4 4 3 3 2 21 1 7 7 6 6 5 5 WHT WHT WHT 4 4 3 3 RED 2 2 1 1 7 7 6 6 9 9 8 8 WHT WHT 9 9 8 8 BLK(ORG) BLK(ORG) 1 2 3 4 BRN FM HA JEM-A 1 2 4 L N 4 AC IN SI1 SI 3 G R N /YEL GRN/YEL GRN/YEL 1 2 4
Meaning of Abbreviations
ABBREV. MEANING 1 BLK BLACK 2 BLU BLUE 3 BRN BROWN 4 GRN/YEL GREEN/YELLOW 5 GRY GREY 6 ORG ORANGE 7 PNK PINK 8 RED RED 9 VLT VIOLET25 Indoor Unit SAP-KRV123EH Outdoor Unit SAP-CRV123EH WARNING
To avoid electrical shock hazard, be sure to
disconnect power before checking, servicing
and/or cleaning any electrical parts.
5 5 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 2 2 1 1 6 6 5 5 4 4 3 3 2 2 1 1 6 6 W W W W W W W W W W W W W W 3 2 1 3 3 2 2 1 1 1 1 2 2 RV YEL YEL B LK BLK BLK BLK COMP R E SSO R TH E R M IS TO R FE RR IT E CO R E CO IL TH E R M IS TO R O U TD OO R TH E R M IS TO R YL 2P CO NN E C TO R OUTDOOR RV1 RV2 MV (BLK) MAGNETIC COIL REACTANCE L2 L1 IN+ IN– OUT– OUT+ IN1 IN2 S1 E W U V T-RUN/TEST (WHT) COIL/COMP(WHT) B LK BLK B LU BLU B LU BLU V L3 P CO NN E C TO R 4-WAY VALVE W BLU WHT RED W HT B LU (P N K ) R E D CM COMPRESSOR MOTOR GRN/YEL S/U C/W R / V GRN/YEL G R N /YEL BLK WHT RED O R G B LK W HT W HT O R G R E D G R Y W HT YEL BLK FE RR IT E CO R E TERMINAL BASE MV 8FA-2-5257-146XX-0 YEL BRNBLU PNK RED BRN BRN TERMINAL BASE PO W E R S U PP LY BLU EARTH RED GRY GRY EVAPORATOR 5 4 3 2 1 5 5 4 4 3 3 BLK BLK 2 2 1 1 4 4 3 3 2 2 1 1 CONTROLLER THERMISTOR (ROOM) THERMISTOR (COIL) 8FA-2-5257-143XX-1 FLAP LAMP 9P(WHT) IN D L A MP A SS Y FAN 5P(WHT) FLAP 5P(WHT) POWER RELAY RY01 HALL IC 3P(WHT) FMC1 FMC2 4P(WHT) ROOM/COIL 4P(WHT) BLK RED WHT (RED) PNK 2 2 YEL BLU GRN/YEL FAN MOTOR CAPACITOR FAN MOTOR FLAP MOTOR PNK 3 3 1 1 5 5 3 3 1 1 3 2 1 5 4 WHT WHT WHT 5 54 43 32 2 1 1 7 76 6 5 5 WHT WHT WHT 4 4 3 3 RED 2 2 1 1 7 7 6 6 9 98 8 WHT WHT 9 9 8 8 BLK(ORG) BLK(ORG) 1 2 3 4 BRN FM HA JEM-A 1 2 4 L N 4 AC IN SI1 SI 3 G R N /YEL GRN/YEL GRN/YEL 1 2 4 6 6 7 7 5 5 4 4 3 3 2 2 1 1 DCFM (WHT) W HT R E D BLU YEL B LK FM FAN MOTOR GRN/YEL CONTROLLER
Outdoor Unit : SAP-CRV123EH Indoor Unit : SAP-KRV123EH
Meaning of Abbreviations
ABBREV. MEANING 1 BLK BLACK 2 BLU BLUE 3 BRN BROWN 4 GRN/YEL GREEN/YELLOW 5 GRY GREY 6 ORG ORANGE 7 PNK PINK 8 RED RED 9 V LT VIOLET7. INSTALLATION INSTRUCTIONS
7-1. Installation Site Selection
7-1-1. Indoor Unit
AVOID:
● direct sunlight.
● nearby heat sources that may affect performance of the unit.
● areas where leakage of flammable gas may be expected.
● places where large amounts of oil mist exist. DO:
● select an appropriate position from which every cor-ner of the room can be uniformly cooled. (High on a wall is best.)
● select a location that will hold the weight of the unit. ● select a location where tubing and drain hose have
the shortest run to the outside. (Fig. 1)
● allow room for operation and maintenance as well as unrestricted air flow around the unit. (Fig. 2)
● install the unit within the maximum elevation differ-ence (H) above or below the outdoor unit and within a total tubing length (L) from the outdoor unit as detailed in Table 1 and Fig. 3.
● Install the indoor unit more than 1 meter away from any antenna or power lines or connecting wires used for television, radio, telephone, security system, or inter-com. Electrical noise from any of these sources may affect operation. Table 1 5 cm min. 5 cm min. 15 cm min. Front View Fig. 1 INDOOR UNIT Tubing length (L) OUTDOOR UNIT Elevation difference (H) Fig. 2
WARNING To prevent abnormal heat
generation and the possibility of fire, do not place obstacles, enclosures and grilles in front of or surrounding the air con-ditioner in a way that may block air flow.
Indoor unit
Floor level
Wall
Minimum height from floor level
1.5 m
Fig. 3 For stable operation of the air conditioner, do not install wall-mounted type indoor units less than 1.5 m from floor level.
CAUTION
Max. Allowable Tubing Limit of Tubing Limit of Elevation Required Amount of
Model Length at Shipment Length (L) Difference (H) Additional Refrigerant
(m) (m) (m) (g/m)*
KRV93 / 123 7.5 15 7 15
* If total tubing length becomes 7.5 to 15 m (max.), charge additional refrigerant (R410A) by 15 g/m.
7-1-2. Outdoor Unit
AVOID:
● heat sources, exhaust fans, etc. (Fig. 4) ● damp, humid or uneven locations. DO:
● choose a place as cool as possible. ● choose a place that is well ventilated.
● allow enough room around the unit for air intake/ exhaust and possible maintenance. (Fig. 5a) ● provide a solid base (level concrete pad, concrete
block, 10 ×40 cm beams or equal), a minimum of 10 cm above ground level to reduce humidity and protect the unit against possible water damage and decreased service life. (Fig. 5a)
● Install cushion rubber under unit’s feet to reduce vibration and noise. (Fig. 5b)
● use lug bolts or equal to bolt down unit, reducing vibration and noise.
● Install in a location where no antenna of a televi-sion or radio exists within 3 meters.
Outdoor unit Hot air Heat source Exhaust fan
NO
Fig. 4 Air intake Concrete or equal About 10 cm Min. 10 cm Anchor bolts (4 pcs.) Abou t 40 cm Fig. 5a Cushion rubber Fig. 5b Air intake Min. 10 cmAir discharge Min. 5 cm Min.40 cm Valve side Min. 25 cm Min. 2 m Min. 2 m Ground Obstacle Obstacle above Air discharge
7-2. Recommended Wire Length and Diameter
Regulations on wiring diameter differ from locality to locality. For field wiring requirements, please refer to your local electrical codes. Carefully observe these regulations when carrying out the installation.
Table 2 lists recommended wire lengths and diameters for power supply systems. Refer to the wiring system diagram (Fig. 6) for the meaning of “A”, “B” and “C” in Table 2.
Table 2 NOTE
INDOOR UNIT OUTDOOR UNIT
TERMINAL TERMINAL (B) (A) (C) GROUNDING LINE Power supply: Single-phase 220 – 240VAC 50Hz 1 4 2 1 4 2 L N Fig. 6
CAUTION Be sure to connect the power
supply line to the indoor unit as shown in the wiring dia-gram. The outdoor unit draws its power from the indoor unit.
WIRING SYSTEM DIAGRAM
WARNING ● Be sure to comply with local
codes on running the wire from the indoor unit to the outdoor unit (size of wire and wiring method, etc.). ● Each wire must be firmly
connected.
● No wire should be allowed to touch refrigerant tubing, the compressor, or any moving part.
● To avoid the risk of electrical shock, each air conditioner unit must be grounded.
● For the installation of a grounding device, please observe local electrical codes. ● Grounding is necessary, especially for units
using inverter circuits, in order to release charged electricity and electrical noise caused by high tension. Otherwise, electrical shock may occur.
● Place a dedicated ground more than 2 meters away from other grounds and do not have it shared with other electric appliances.
WARNING
Cross-Sectional (A)+(B) (A) Power Supply Wiring Length (m) (C) Control
Fuse or Circuit Area (mm2) (B) Power Line Length (m) Line Length (m)
Model 2 3.5 0.75 Breaker Capacity
CRV93 60 100 160
10A
7-3-1. 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 oper-ates from that location. The indoor unit should make a beeping sound to indicate that it has received the signal.
7-3. 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:
● In direct sunlight
● Behind a curtain or other place where it is covered ● More than 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 interference
● Where there is an obstacle between the remote control unit and the air conditioner (since a check signal is
sent from the remote control unit every 5 minutes)
Hole Remote control unit mount
Mounting screws 4 × 16 (included)
Rear side
Press
Set in
place 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. 7
7-4. How to Test Run the Air Conditioner
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. 8a)
a) Press and hold the QUIET 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. 8b)
d) Release the 1HR TIMER button. e) Release the QUIET button.
(2) Start Cooling mode test run by pressing the ON/OFF operation button of the remote controller. (Fig. 8a)
• This starts the fan producing uncooled forced air with the 3 indicator lamps (OPERATION lamp, TIMER lamp and QUIET lamp) on the main unit blinking. (Fig. 8c) • 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. 8a)
(4) Finally press the ACL (reset) button of the remote con-troller to release it from Test Run mode to return to nor-mal mode. (Fig. 8a)
• “ ” and “oP-1” will disappear from the remote con-troller display area.
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.
IMPORTANT Fig. 8a Fig. 8b 1HR. TIMER ON/OFF operation ACL (Reset) QUIET button button button button OPERATION lamp TIMER lamp QUIET lamp
7-5. Remove the Grille to Install the
Indoor Unit
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. 9a)
(2) Remove the 2 screws. (Fig. 9b)
(3) Remove the screw on the right side cover plate and open the cover. (Fig. 10a)
(4) Take out the thermistor from the grille. (Fig. 10b) (5) Pull the lower part of the grille toward you to
remove. (Fig. 11a)
(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. 11b) Insert the tabs in the slots and push the lower part of the grille back into position.
(2) Make sure that the grille and frame are firmly fitted together by engaging the tabs.
(3) Attach the thermistor on the grille. (Fig. 10a) (4) Close the cover and replace the screw. (Fig. 10a) (5) Affix the grille with the 2 previously removed
screws. (Fig. 9b)
(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. 12a)
(b) Press the bottom right and left corners of the air intake grille to attach it to the indoor unit. (Fig. 12b)
Screw cover
Air intake grille Grille
Fig. 9a Fig. 9b Cover Thermistor Fig. 10a Thermistor Fig. 10b Fig. 11a Grille Frame Tab Tab * * Fig. 11b * * Pin Groove
CAUTION Be sure to wear work gloves during
installation to avoid being cut by the sharp aluminum fins of the heat exchanger.
8. MAINTENANCE
8-1. Address Setting of the Remote
Control Unit
The address can be set in order to prevent interfer-ence 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.
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. 13). When the tab is removed, the address is automatically set to B (Fig. 14).
(3) Press and hold the remote controller QUIET but-ton and 1 HR TIMER butbut-ton. 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 but-ton 2 times to change the display to “oP-7” (address setting). (Fig. 15)
(5) “oP-7” has now been selected for address setting. (6) Press the ON/OFF operation button on the remote
controller. (Fig. 15) Check that the “beep” signal-received 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) button to cancel the blinking “oP-7” display. (Fig. 15)
Changing of the second remote controller address is now completed.
Test run mode Self-diagnostic mode Address setting mode NOTE Fig. 13 Fig. 14 Tab ACL button ON•/OFF• 1HR. UIET MODE TEMP. TIMER CANCEL SENSOR ADR ACL 24H 12H F CLOCK NIGHT SETBACK FAN SPEED HIGH POWER FLAP AIR CONDITIONER 1HR. TIMER ON/OFF operation ACL (Reset) QUIET button button button button
8-2. Disconnecting and Connecting Positive Connector for Outdoor Unit
One of the two types of connectors illustrated at left is used. Their basic structure is the same for each.How to Disconnect
Hold the resin connector cover, and pull the connector off. You cannot disconnect the connector by pulling the wire since it is locked inside. Always hold the cover to disconnect. (See illustration at left.) For the connector without the resin cover, push the lock in the direction of “2” while pulling it off.
How to Connect
In order to connect, hold the resin cover of the connector and push it in. Confirm the click sound for the inside lock.
Pull the cover upward
When the cover is pulled upward, the lock is released with the sequence of 1 and 2.
9. FUNCTIONS
9-1. Operation Functions
■ Emergency operation
■ SENSOR DRY
■ AUTO cooling/heating operation
● Selecting the operation modeDuring 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-
α
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 15°C, or more than 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 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 2°C below the detected room temperature in the case of cooling operation, and 2°C above the room temperature in the case of heating operation. The flap and fan speed settings are AUTO.
(GREEN) (RED)COOL HEAT (Lamp STOPOff)
• When AUTO mode is selected, the microprocessor calculates the difference between the set temperature and the room temperature, and automatically switches to Cooling or Heating mode.
• As shown by the example in the figure below, with AUTO cooling/heating operation, the mode changes between Heating and Cooling mode according to changes in the relationship between the current room temperature and the set temperature.
Room temp. ≥ Set temp. COOL Room temp. ≤ Set temp. HEAT
23 Zone A Zone B Zone C Zone C Zone B Zone A OFF OFF Compressor Operation mode Room temp. Heating Cooling Cooling ON ON ON More than
1 hour Within1 hour
Set temp.
Example
Example of operation in AUTO mode with the set room temperature at 23°C.
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.
■ HIGH POWER
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.”
■ Lamp colors
OPERATION lamp■ NIGHT SETBACK
NOTE• 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.
■ Timer backup
• 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.
• 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
• The indoor unit fan speed is automatically lowered for quiet operation.
• The temperature setting is raised by 1°C 30 minutes after NIGHT SETBACK operation is set. This repeats again after another 30 minutes have passed to gradually raise the temperature.
● HEAT mode
• The indoor unit and outdoor unit fan speeds are automatically lowered for quiet operation.
• The temperature setting is lowered by 2°C 30 minutes after NIGHT SETBACK operation is set.
This repeats again after another 30 minutes have passed to gradually lower the temperature.
TIMER lamp Green
QUIET lamp Green
HEAT operation Red
DRY operation Orange
■ Overload prevention during heating
9-2. Protective Functions
During HEAT operation, the temperature of the indoor heat exchanger is used to control the frequency and lessen the load on the compressor before the protective device is activated.
■ Cold-air prevention during heating
■ Compressor discharge temperature control
During heating, the fan speed is set to “LL” (very low) or stopped. As the temperature of the indoor heat exchanger rises, the fan speed is changed to the set speed.■ 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.
1Freeze-prevention operation is engaged when the
temperature of the indoor heat exchanger is below 6°C.
2Restart after freeze-prevention operation occurs when the
temperature of the indoor heat exchanger reaches 8°C or above.
aArea: Automatic capacity control
bWhen Point A has been exceeded, the operation frequency is
reduced by a certain proportion.
cArea: Frequency increase is prohibited.
dAt Point B and below, overload prevention is ended and
control is the same as in the a area.
aArea: Automatic capacity control
bWhen the temperature drops below Point A, the operation
frequency is reduced by a certain proportion.
cArea: Frequency increase is prohibited.
dWhen 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 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.
Approx. 53 Normal operation At start of operation A High LL Stopped A
*
B C BIndoor heat exchanger A. Control start B. Control end
Set fan speed
25 30 Approx. 40
a b c d
a b c d
Indoor heat exchanger
temperature (
°
C)
Indoor heat exchanger temperature (°C)
Indoor heat exchanger
temperature ( ° C) Approx. 47 2 6 8 NOTE
• The fan speed is forcibly changed to “LL” beginning 30 seconds after the thermostat turns OFF.
• Normal operation refers to operation when the room temperature has approached the set temperature.
• When HEAT operation starts, the indoor fan is stopped until the temperature of the indoor heat exchanger reaches 20°C or higher, or until the room temperature reaches 15°C or higher.
This function controls the operation frequency to prevent the compressor discharge temperature from rising more than a specified temperature.
aArea: Automatic capacity control.
bWhen the temperature rises above Point A, the operation
frequency is reduced at a specified rate.
cArea: Further frequency increase is prohibited.
dWhen the temperature falls below Point B, prevention of a rise
in frequency is released and the air conditioner operates as in
a area.
*
The compressor will stop if the temperature of the compressor discharge exceeds 120°C due to shortage of gas or other reason.Approx.
101 A
B
a b c d
Compressor discharge temperature (°C)
Approx. 94
Heating operation
Frost sensing
Reverse-cycle defrosting operation
Defrosting Sequence
Releasing of defrosting ● ● • • Outdoor fan ON 4-way valve ON ●●Outdoor heating exchanger temp. is over 14Defrosting operation lasts 12 minutes (maximum).°C.
2 minutes after it is stopped, compressor is ON. 4-way valve is ON. Outdoor fan is ON.
If the air conditioner is turned off during the defrosting cycle, it will continue defrosting and turn itself off after defrosting is completed. ● ● ● ● ●
Compressor ➞1 minute after it is stopped, compressor is ON. Outdoor fan ➞OFF
Indoor fan ➞OFF 4-way valve ➞OFF Operation lamp ➞
●Reverse-Cycle Defrosting
NOTE
■ Defrost detection and release
• This function prevents the circuit breaker or fuse from operating to open the circuit. This function works when electrical current has increased due to an increase in the cooling / heating load, or to a decrease in the power supply voltage. In these cases, operation frequency is reduced or operation is interrupted auto-matically to control the electrical current for operation.
• When the cause of the increase in electrical current is rectified, the system will resume operation in the original mode.
Electrical current setting for COOL operation is used during DEFROST operation.
Cooling • Dry Heating Peak current cut-off trips 12.0
Hz down 8.5 8.5
NOTE
(A) SAP-KRV93, KRV123
■ CT (Peak current cut-off control)
Repeatedly switches between red and orange illumination.
Defrost detection occurs in either of the following cases:
The temperature of the heat exchanger remains at or below the L2 line for 120 minutes after the start of HEAT operation. Outdoor heat exchanger temp. Ambient temp. 0 L1 L2 Frosting area
The temperature of the heat exchanger remains at or below the L1 line for 3 minutes after the start of HEAT operation.
10. TROUBLESHOOTING
■ Precautions before performing inspection or repair
NOTE
Executing self-diagnostics
● 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 310 V) 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.
■ Method of self-diagnostics
Follow the procedure below to perform detailed trouble diagnostics.
ONEI/OFFE 1HR. UIET MODE TEMP. TIMER CANCEL SENSOR ADR ACL 24H 12H F CLOCK NIGHT SETBACK FAN SPEED HIGH POWER FLAP AIR CONDITIONER 1HR. TIMER button ON/OFF operation button ACL (Reset) button QUIET button < Clock display >
Test run mode Self-diagnostics mode
Step 1: Press and hold the remote controller QUIET 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.
Self-diagnostics Lamps
Indication on indoor unit .... OFF
Timer Operation
Code Diagnostics item Diagnostics contents
S01 Room temperature sensor failure 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
1 External ROM data failure 2 Outdoor circuit board failure
1 Outdoor circuit board failure 2 Outdoor power supply voltage 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 Mis-wiring 2 AC power failure 3 Blown fuse 4 Power relay failure 5 Indoor or outdoor circuit board 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 Mis-wiring 2 Blown fuse 3 Power relay failure 4 Open phase 5 Outdoor circuit board failure 6 Compressor failure
1 Instantaneous power outage 2 HIC or power transistor failure 3 Outdoor circuit board failure
1 Fan motor failure 2 Contact failure at connector 3 Outdoor circuit board failure
1 Indoor fan system failure 2 Shortage of refrigerant 3 Low-temperature operation 1 Fan motor failure 2 Contact failure at connector 3 Indoor 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
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 Outdoor circuit board 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)
<NOTE> Since the indications cover various units, corresponding parts listed below may not be present in some models.
OPERATION OPERATION TIMER QUIET (1) OPERATION lamp (2) TIMER lamp (3) QUIET lamp Self-diagnostics lamps
■ If self-diagnostics function fails to operate
<Checking the indoor and outdoor units>
■ Checking the indoor unit
■ Checking the outdoor unit
■ Checking serial communications
Check the indoor unit.Is the fuse blown?
Control
No. Check items (unit operation)
Replace the controller.
Replace the circuit board or the fuse.
• No indicators illuminate and the indoor fan does not rotate. • Check the power voltage.
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 3 indicator lamps on the unit. If all 3 are blinking, the current mode is “TEST run.”
● If there are no problems with the above, then check the outdoor unit.
● For the “Test run” procedure, refer to 7.4 “How to Test Run the Air Conditioner.”
1 • The rated voltage must be present between inter-unit cables 1 and 2.
• Connect a 5 kΩ resistor between inter-unit cables 2 and 4. When the voltage at both ends is measured, approximately 12–15 V 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.
Control
No. Check items (unit operation)
Short-circuit terminals 2 and 4 on the indoor unit terminal base. Initial
self-diagnostics Probable location of malfunction
Short-circuit terminals 2 and 4 on the indoor unit terminal base. Apply the rated voltage between outdoor
unit terminals 1 and 2.
● 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 1 and 2 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, fan motor, and 4-way valve must all turn ON.
Normal
Blown
→ Control 1
No change Indoor unit circuit board failure Outdoor unit circuit board failure Failure (open circuit, contact failure, etc.) in the inter-unit wiring
Outdoor unit circuit board failure Change: (1) and (3) illuminate,
and (2) blinks. (1) illuminates
Change: (1) and (3) illuminate, and (3) blinks.
Change: (1) and (3) illuminate, and (2) blinks.
Change: (1) illuminates (1) and (3) illuminate,
and blinks.
→ Control 2 ● Using the TEST/T-RUN terminals
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).
TEST/T-RUN terminals
<Trouble Diagnosis of Outdoor Fan Motor>
...Applied for only SAP-CRV123 outdoor unit● This outdoor 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, follow the instructions in “Checking the Outdoor Unit” on the previous page and set the outdoor unit to Test Run mode (compressor ON, outdoor fan motor ON).
Important: (A) Turn OFF the power before connecting or disconnecting the motor connectors.
(B) When performing voltage measurement at the outdoor controller connector for (3) in the table below, the DC motor will trip and voltage output will stop approximately 10 seconds after operation is started. For this reason, to measure the voltage again, first turn OFF the outdoor unit power, then follow the instructions in “Checking the Outdoor Unit” and again set the unit to Test Run mode.
[Trouble symptom 1] The fan does not stop when the outdoor unit stops. →Outdoor unit controller trouble
[Trouble symptom 2] The fan motor does not rotate when the outdoor unit is operating. (Diagnostic procedure)
* Disconnect the motor connectors and measure the voltage at the DC motor connectors on the outdoor unit controller (3 locations).
Measurement location Normal value
(1) Vs-Gnd: Between pin 1 and pin 4 DC 230 V or more (2) Vcc-Gnd: Between pin 5 and pin 4 DC 14 V or more
(3) Vsp-Gnd: Between pin 7 and pin 4 After fluctuating 4 times between DC 1.0 – 4.3 V (1 sec. ON) and DC 0 V (1 sec. OFF), the DC motor trips.
(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. →Outdoor unit controller trouble
(Replace the controller .)
(Reference) DC motor connector pin arrangement
Pin 1: Vs (white) Pin 2: Not used Pin 3: Not used Pin 4: Gnd (black) Pin 5: Vcc (red) Pin 6: FG (blue) Pin 7: Vsp (yellow)
[Trouble symptom 3] Motor rotates for some time (several seconds), but then quickly stops, when the outdoor
unit operates.
(There is trouble in the system that provides feedback of motor rotation speed from the motor to the outdoor unit controller.)
[Trouble symptom 4] Fan motor rotation speed does not change during outdoor unit operation.
[Trouble symptom 5] Fan motor rotation speed varies excessively during outdoor unit operation.
(Remedy for symptom 3 to 5)
It is not possible to identify whether the trouble is outdoor unit controller trouble or motor trouble. Therefore, first replace the outdoor unit controller, then (if necessary) replace the DC motor.
