Panasonic CS-VC70KE User manual

©1999 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
CS-VC70KE
CU-VC70KE
CS-VC90KE
CU-VC90KE
CS-VC120KE
CU-VC120KE
Room Air Conditioners
Order number RAC9911055C2

1 Features 3
2 Functions 4
2.1. REMOTE CONTROL 4
2.2. INDOOR UNIT 5
2.3. OUTDOOR UNIT 6
3 Product Specifications 7
3.1. CS-VC70KE / CU-VC70KE 7
3.2. CS-VC90KE / CU-VC90KE 9
3.3. CS-VC120KE / CU-VC120KE 10
4 Dimensions 11
4.1. CS-VC70KE / CS-VC90KE / CS-VC120KE (INDOOR
UNIT) 11
4.2. CU-VC70KE / CU-VC90KE (OUTDOOR UNIT) 12
4.3. CU-VC120KE(OUTDOOR UNIT) 12
5 Refrigeration Cycle Diagram 13
6 Block Diagram 14
7 Wiring Diagram 15
8 Operation Details 16
8.1. COOLING MODE OPERATION 16
8.2. SOFT DRY MODE OPERATION 18
8.3. AIR CIRCULATION MODE OPERATION 20
8.4. AUTOMATIC MODE OPARATION 20
8.5. SLEEP MODE AUTO OPERATION 21
8.6. AUTO RESTART CONTROL 22
8.7. INDOOR FAN MOTOR CONTROL 22
8.8. AIRFLOW DIRECTION CONTROL 23
8.9. DELAY ON TIMER CONTROL 23
9 Installation And Servicing Air Conditioner Using R410A 24
9.1. OUTLINE 24
9.2. TOOLS FOR INSTALLING/SERVICING REFRIGERANT
PIPING 25
9.3. REFRIGERANT PIPING WORK 29
9.4. INSTALLATION, TRANSFERRING SERVICING 31
10 Installation Information 35
10.1. ATTACHED ACCESSORIES 35
10.2. SELECT THE BEST LOCATION 35
10.3. INDOOR/OUTDOOR UNIT INSTALLATION DIAGRAM 36
11 2-Way / 3-Way Valves 37
11.1. EVACUATION OF INSTALLATION 38
11.2. PUMPING DOWN 39
11.3. EVACUATION OF RE-INSTALLATION 40
11.4. BALANCE REFRIGERANT OF THE 2-WAY, 3-WAY
VALVE 41
11.5. EVACUATION 42
12 Servicing Information 43
12.1. INSPECTION POINTS FOR THE INDOOR ELECTRONIC
CONTROLLER 43
12.2. INDOOR FAN MOTOR REMOVAL PROCEDURE 43
12.3. CROSS FLOW FAN REMOVAL PROCEDURE 45
12.4. OUTDOOR UNIT SERVICING 46
12.5. REMOTE CONTROL RESET 46
12.6. CHANGING THE WIRELESS REMOTE CONTROL
TRANSMISSION CODE 47
13 Troubleshooting Guide 48
13.1. RELATIONSHIP BETWEEN THE CONDITION OF THE
AIR CONDITIONER AND GAS PRESSURE AND
ELECTRIC CURRENT 49
13.2. DIAGNOSIS METHODS OF A MALFUNNCTION OF A
COMPRESSOR 49
14 Technical Data 50
14.1. THERMOSTAT CHARACTERISTICS 50
14.2. OPERATION CHARACTERISTICS 51
15 Electronic Circuit Diagram 53
15.1. HOW TO USE ELECTRONIC CIRCUIT DIAGRAM 53
15.2. TIMER TABLE 54
15.3. ELECTRONIC CIRCUIT DIAGRAM 55
16 Printed Circuit Board 57
16.1. INDOOR UNIT (MAIN) 57
17 Exploded View & Replacement Parts List 58
17.1. CS-VC70KE / CS-VC90KE 58
17.2. CS-VC120KE 60
17.3. CU-VC70KE / CU-VC90KE 62
17.4. CU-VC120KE 64
18 Electronic Parts List 66
CONTENTS
Page Page
2
CS-VC70KE / CU-VC70KE / CS-VC90KE / CU-VC90KE / CS-VC120KE / CU-VC120KE

· R410A
No Ozone Layer Damage
Our new models use R410A as its refrigerant.
This Refrigerant does not contain chlorine, so there´s no
danger of damage to the ozone layer.
· Compact Design
· Comfort Improvement
− − −
− Wider range of horizontal discharge air
− − −
− Longer hours of sleep mode operation
· Auto Restart
− − −
− Auto restart operation after power failure
· Removable and Washable Front Panel
· Deodorizing Air Purifying Filter
− − −
− Air Purifying Filter features a deodorizing function that
removes unpleasant odors from the air.
· Installation Work Improvement
− − −
− Long piping up to 10 m (CS-VC70KE / CS-VC90KE)
− − −
− Long piping up to 15 m (CS-VC120KE)
· Quality Improvement
− − −
− Low voltage protection
− − −
− Gas leakage protection
− − −
− Prevent compressor reverse cycle
− − −
− 2-stage OLP to protect compressor
(CS-VC120KE)
· Service Improvement
− − −
− Easy fan motor replacement procedure
− − −
− Front side servicing for outdoor unit
(CS-VC70KE / CS-VC90KE)
1 Features
3
CS-VC70KE / CU-VC70KE / CS-VC90KE / CU-VC90KE / CS-VC120KE / CU-VC120KE

2 Functions
2.1. REMOTE CONTROL
4
CS-VC70KE / CU-VC70KE / CS-VC90KE / CU-VC90KE / CS-VC120KE / CU-VC120KE

2.2. INDOOR UNIT
5
CS-VC70KE / CU-VC70KE / CS-VC90KE / CU-VC90KE / CS-VC120KE / CU-VC120KE

2.3. OUTDOOR UNIT
6
CS-VC70KE / CU-VC70KE / CS-VC90KE / CU-VC90KE / CS-VC120KE / CU-VC120KE

3 Product Specifications
3.1. CS-VC70KE / CU-VC70KE
Unit CS-VC70KE CU-VC70KE
Cooling Capacity kW
Btu/h 2.34 8,000
Moisture Removal /h
Pint/h 1.4 3.0
Power Source Phase
V
Cycle
Single
230
50
Airflow Method
Air Volume Indoor Air(Lo) m / min(cfm) 6.1(220) -
Indoor Air(Me) m / min(cfm) 6.8(240) -
Indoor Air(Hi) m/ min(cfm) 7.3(260) -
Outdoor Air m / min(cfm) -22.4(790)
Noise Level dB(A) High 35,Low 31 44
Electrical
Data Input kW 0.65
Running Current A 3.2
COP 3.35
Starting Current A 13
Piping Connection Port
(Flare piping) inch inch G ; Half Union 3/8” L ; Half Union 1/4” G ; 3-Way valve 3/8” L ; 2-Way valve 1/4”
Pipe Size
(Flare piping) inch inch G(gas side) ; 3/8” L(liquid side) ; 1/4” G(gas side) ; 3/8” L(liquid side) ; 1/4”
Drain
Hose Inner diameter mm 12 -
Length m 0.7 -
Power Cord length
Number of core-wire m 2.1 m 3 (1.0 mm )- -
Dimensions Height inch(mm) 11 - 7/16(290) 18 - 29/32(480)
Width inch(mm) 31 - 15/32(799) 30 - 23/32(780)
Depth inch(mm) 6 - 29/32(175) 9 - 21/32(245)
Net Weight lb(kg) 18(8.0) 57(26.0)
Compressor Type -Rotary(1 cylinder
rolling piston type
Motor Type -Induction(2-poles)
Rated Output W - 550
Air Circularizing Type Cross-flow Fan Propeller Fan
Material AS+Glass Fiber 30 AES+Glass Fiber 16
Motor Type Transiator(4-poles) Induction(6-poles)
Input W - 55.6
rated Output W 5 15
Fan
Speed Low rpm 990 -
Medium rpm 1,100 -
High(heating) rpm 1,180 670
Heat
Exchange description Evaporator Condenser
Tube material Copper Copper
Fine material Aluminium Aluminium
Fine type Slit Fin Corrugated Fin
Row/Stage (Plate fin configuration, forced draft)
2x12 1x18
FPI 18 18
Size(W x H x L) mm 600 x 252 x 25.4 856 x 457.2 x 22
Refrigerant Control Device - Capillary Tube
refrigeration Oil (c.c) - RB68A(300)
Refrigerant(R410A) g(oz) - 800(28.2)
Thermostat Electronic Control -
Protection Device -Overload Protector
Capillary Tube Length
flow Rate
Inner Diameter
mm
/min
mm
-
-
-
865
6.8
1.3
Air Filter Material
style P.P Honeycomb -
Capacity Control Capillary Tube
7
CS-VC70KE / CU-VC70KE / CS-VC90KE / CU-VC90KE / CS-VC120KE / CU-VC120KE

Unit CS-VC70KE CU-VC70KE
Compressor Capacitor µF,VAC - 15µF,400VAC
Fan motor Capacitor µF,VAC 0.6µF,400VAC 1.2µF,400VAC
· Specifications are subject to change without notice for further improvement.
8
CS-VC70KE / CU-VC70KE / CS-VC90KE / CU-VC90KE / CS-VC120KE / CU-VC120KE

3.2. CS-VC90KE / CU-VC90KE
Unit CS-VC90KE CU-VC90KE
Cooling Capacity kW
Btu/h 2.68 9,100
Moisture Removal /h
Pint/h 1.6 3.4
Power Source Phase
V
Cycle
Single
230
50
Airflow Method
Air Volume Indoor Air(Lo) m / min(cfm) 6.1(220) -
Indoor Air(Me) m / min(cfm) 6.8(240) -
Indoor Air(Hi) m/ min(cfm) 7.3(260) -
Outdoor Air m / min(cfm) -22.4(790)
Noise Level dB(A) High 35,Low 31 46
Electrical
Data Input kW 0.80
Running Current A 3.7
COP 3.35
Starting Current A 20
Piping Connection Port
(Flare piping) inch inch G ; Half Union 3/8” L ; Half Union 1/4” G ; 3-Way valve 3/8” L ; 2-Way valve 1/4”
Pipe Size
(Flare piping) inch inch G(gas side) ; 3/8” L(liquid side) ; 1/4” G(gas side) ; 3/8” L(liquid side) ; 1/4”
Drain
Hose Inner diameter mm 12 -
Length m 0.7 -
Power Cord length
Number of core-wire 2.1 m 3 (1.0 mm )- -
Dimensions Height inch(mm) 11 - 7/16(290) 18 - 29/32(480)
Width inch(mm) 31 - 15/32(799) 30 - 23/32(780)
Depth inch(mm) 6 - 29/32(175) 9 - 21/32(245)
Net Weight lb(kg) 18(8.0) 64(29.0)
Compressor Type -Rotary(1 cylinder
rolling piston type
Motor Type -Induction(2-poles)
Rated Output W - 700
Air Circularizing Type Cross-flow Fan Propeller Fan
Material AS+Glass Fiber 30 AES+Glass Fiber 12
Motor Type Transiator(4-poles) Induction(6-poles)
Input W - 55.6
rated Output W 5 20
Fan
Speed Low rpm 990 -
Medium rpm 1,100 -
High(heating) rpm 1,180 705
Heat
Exchange description Evaporator Condenser
Tube material Copper Copper
Fine material Aluminium Aluminium
Fine type Slit Fin Corrugated Fin
Row/Stage (Plate fin configuration, forced draft)
2x12 1x18
FPI 18 17
Size(W x H x L) mm 600 x 252 x 25.4 856 x 457.2 x 22
Refrigerant Control Device - Capillary Tube
refrigeration Oil (c.c) - RB68A(350)
Refrigerant(R410A) g(oz) - 880(31.1)
Thermostat Electronic Control -
Protection Device -Overload Protector
Capillary Tube Length
flow Rate
Inner Diameter
mm
/min
mm
-
-
-
535
8.7
1.3
Air Filter Material
style P.P Honeycomb -
Capacity Control Capillary Tube
Compressor Capacitor µF,VAC - 30µF,370VAC
Fan motor Capacitor µF,VAC 0.6µF,400VAC 1.2µF,400VAC
· Specifications are subject to change without notice for further improvement.
9
CS-VC70KE / CU-VC70KE / CS-VC90KE / CU-VC90KE / CS-VC120KE / CU-VC120KE

3.3. CS-VC120KE / CU-VC120KE
Unit CS-VC120KE CU-VC120KE
Cooling Capacity kW
Btu/h 3.55 12,000
Moisture Removal /h
Pint/h 2.0 4.2
Power Source Phase
V
Cycle
Single
230
50
Airflow Method
Air Volume Indoor Air(Lo) m / min(cfm) 7.3(260) -
Indoor Air(Me) m / min(cfm) 7.6(270) -
Indoor Air(Hi) m/ min(cfm) 8.3(290) -
Outdoor Air m / min(cfm) -22.0(780)
Noise Level dB(A) High 39,Low 36 46
Electrical
Data Input kW 1.27
Running Current A 5.6
COP 2.8
Starting Current A 25
Piping Connection Port
(Flare piping) inch inch G ; Half Union 1/2” L ; Half Union 1/4” G ; 3-Way valve 1/2” L ; 2-Way valve 1/4”
Pipe Size
(Flare piping) inch inch G(gas side) ; 1/2” L(liquid side) ; 1/4” G(gas side) ; 1/2” L(liquid side) ; 1/4”
Drain
Hose Inner diameter mm 12 -
Length m 0.7 -
Power Cord length
Number of core-wire 2.1 m 3 (1.0 mm )- -
Dimensions Height inch(mm) 11 - 7/16(290) 19 - 29/32(505)
Width inch(mm) 31 - 15/32(799) 30 - 23/32(780)
Depth inch(mm) 6 - 29/32(175) 9 - 21/32(245)
Net Weight lb(kg) 18(8.0) 77(35.0)
Compressor Type -Rotary(1 cylinder
rolling piston type
Motor Type -Induction(2-poles)
Rated Output W - 1100
Air Circularizing Type Cross-flow Fan Propeller Fan
Material AS+Glass Fiber 30 AES+Glass Fiber 12
Motor Type Transiator(4-poles) Induction(6-poles)
Input W - 60
rated Output W 10 20
Fan
Speed Low rpm 1205 -
Medium rpm 1,250 -
High(heating) rpm 1,360 705
Heat
Exchange description Evaporator Condenser
Tube material Copper Copper
Fine material Aluminium Aluminium
Fine type Slit Fin Corrugated Fin
Row/Stage (Plate fin configuration, forced draft)
2x12 1x19
FPI 21 21
Size(W x H x L) mm 600 x 252 x 25.4 776.2 x 482.6 x 22
Refrigerant Control Device - Capillary Tube
refrigeration Oil (c.c) - RB68A(350)
Refrigerant(R410A) g(oz) - 820(28.9)
Thermostat Electronic Control -
Protection Device -Overload Protector
Capillary Tube Length
flow Rate
Inner Diameter
mm
/min
mm
-
-
-
545
12.5
1.5
Air Filter Material
style P.P Honeycomb -
Capacity Control Capillary Tube
Compressor Capacitor µF,VAC - 30µF,370VAC
Fan motor Capacitor µF,VAC 1.0µF,450VAC 1.2µF,400VAC
· Specifications are subject to change without notice for further improvement.
10
CS-VC70KE / CU-VC70KE / CS-VC90KE / CU-VC90KE / CS-VC120KE / CU-VC120KE