Panasonic CS-A12ATP5 Service Manual

Order No. MAC0112088C0

Room Air Conditioner

CS-A12ATP5 CU-A12ATP5 CS-A18ATP5 CU-A18ATPT5 CS-A24ATP5 CU-A24ATPT5

CONTENTS

Page Page

1 Functions 2 2 Product Specifications 3 Dimensions 4 Refrigeration Cycle Diagram 5 Block Diagram 6 Wiring Diagram 7 Operation Details 8 Operating Instructions 9 Installation Instructions

10 Servicing Information 36

11 Troubleshooting Guide

12 Technical Data 13 Exploded View

13 14

14 Replaceme nt Parts List

15 Exploded View 16 Replaceme nt Parts List

18 21

17 Electronic Parts List

18 Electronic Circuit Diagram

37 39 42 43 44 45 46 47

CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

1 Functions

Remote Control Transmitter

Remote Control

Operation START/STOP

AUTO HEAT COOL

OFF ON OFF ON

DRY

TEMP

MODE SLEEP

TIMER

OFF/ON SET/C

H H

OFF/ON

RESET

SLEEP

FAN SPEED

AUTO

AIR SWING

MANUAL

Sleep Mode Auto-Control

●

Starts/Stops when the button is pressed

Operation Mode Selection

•

AUTO

•

HEAT

COOL

•

DRY

Automatic Operation Mode Heating Operation Mode Cooling Operation Mode Soft Dry Operation Mode

Indoor Fan Speed Selection

• Low Fan Speed

• Medium Fan Speed

• High Fan Speed

TEMP

Room Temperature Setting / Time Setting

●

Temperature Setting (20°C to 30°C)

●

(higher), (standard), (lower)

... Automatic Operation

Timer Operation Selection

●

12 hours ON/OFF Dual Timer Setting

SET/C

Timer Operation Set/Cancel

●

Set/Cancel the selected Timer Operation

Airflow Direction Control

●

Airflow Direction Manual Control

●

Automatic Airflow Direction Control

Indoor Unit

CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

Sensing The Room Temperature

●

Room Temperature Sensor (thermistor)

Starting Current Control

●

Indoor Fan is delayed for 1.6 seconds at the starting

Time Delay Safety Control

●

Restarting is inhibited for apporox. 3 minutes

Circuit Protection Control

●

30 seconds forced operation of the compressor

Indoor Fan Speed Control

●

High, Med, Low

Operation Indication Lamps (LED)

●

POWER

(green).........Lights up in operation

●

AIR SWING

●

TIMER

●

SLEEP

(red)......... Automatic Airflow

Direction in operation

(orange) ........ Timer in operation

(orange) ........ Sleep Mode Auto in

operation

Hot-start Control (Heating)

●

The indoor fan stops until the Evaporator piping temperature will be reached.

Automatic Restarting Control

●

7 minutes automatic restarting at Cooling, Soft Dry operation.

Sleep Mode Auto Control

●

The Fan is switched to Low fan speed and the unit will be stopped after 5 hours

●

The setting temperature will be raised by 1°C at the starting and by 1°C one hour later (Soft Dry of Cooling Operation)

●

The setting temperature will be dropped by 2°C at the starting and by 3°C one hour later (Heating Operation)

Deice (defrost) Control

●

Both the indoor and outdoor fan stops during deicing

●

Hot start after deice ends.

●

Starts operation when indoor piping temperature drops below temperature setting 60 ± 10 minutes after heating start or deice ends

●

Operations LED flashes

Soft Dry Operation Mode

●

Intermittent operation of Fan at low speed

Room Temperature Control

●

Maintains the room temperature accordance with the Setting Temp.

Overload Protection

●

Thermostat OFF if the Piping temperature exceeds 100°C

Automatic Operation Determination

●

Select cooling, dry or heating with the indoor intake sensor

25°C or higher ........... cooling

21 to 24°C .................. dry

20°C or lower ............. heating

●

5-minutes automatic restarting is activated instead of 7-minutes.

CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

Outdoor Unit

Anti-freezing Control For The Evaporator

●

Compressor will be stopped when the Evaporator’s piping temperature is 0°C or less for three minutes

●

Restarting at 12°C or higher (Time Delay Safety Control has a priority)

Airflow Direction Control

Automatic Airflow Direction Control

●

The louver automatically swings up and down

(Cooling, Soft Dry) ....... horizontal and 30°

downward

●

The louver is set at 60° downward during Heating Operation

●

The louver is set at horizontal when the fan is stopped Airflow Direction Manual Control

●

Can be set within a range at horizontal to 60° downward

Overload Protector

30 sec. Forced Operation Control

●

Once the compressor is activated it does not stop for 30 secs

●

Stops immediately with remote control stop

2 Product Specifications

Unit CS-A12ATP5 CU-A12ATP5

CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

Cooling Capacity kW

Heating Capacity kW

Moisture Removal l/h

Power Source Phase

Airflow Method OUTLET

Air Volume Indoor Air (Lo) m3/min (cfm) 8.9 (314) —

BTU/h

kcal/h

BTU/h

kcal/h

Pint/h

Cycle

SIDE VIEW TOP VIEW

INTAKE

3.35; 3.35; 3.40

11,400; 11,400; 11,600

2,870; 2,870; 2,920

4.00; 4.00; 4.10

13,600; 13,600; 13,900

3,430; 3,430; 3,500

2.0

4.2

Single

220; 230; 240

Indoor Air (Me) m3/min (cfm) 9.6 (339) —

Indoor Air (Hi) m3/min (cfm) 10.0 (350) —

Noise Level dB (A) Cooling: High 45; 46; 46 Low 41; 42; 42

Power Noise Level dB (A) Cooling: High 59

Electrical Data Input kW Cooling: 1.27; 1.28; 1.30

Running Current A Cooling: 6.0; 5.9; 5.8

EER W/W (BTU/hW) Cooling: 2.64 (9.0); 2.62 (8.9); 2.62 (8.9)

COP W/W (BTU/hW) Heating: 3.15 (10.7); 3.03 (10.3); 3.04 (10.3)

Starting Current A 25

Piping Connection Port (Flare piping)

Pipe Size (Flare piping)

Drain Hose

Inner diameter mm 20 — Length m 0.6 —

inch inch

Heating: High 45; 46; 46 Low 41; 42; 42

Heating: High 59

Heating: 1.27; 1.32; 1.35

Heating: 6.0; 6.1; 6.1

G ; Half Union 1/2”

L ; Half Union 1/4” G (gas side) ; 1/2”

L (liquid side) ; 1/4”

Cooling: High 46; 47; 47 Heating: High 46; 47; 47

Cooling: High 62 Heating: High 62

G ; 3-way valve 1/2”

L ; 2-way valve 1/4”

G (gas side) ; 1/2”

L (liquid side) ; 1/4”

CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

Unit CS-A12ATP5 CU-A12ATP5

Power Cord Length Number of core-wire

m 2.3

3 (1.0 mm

)

— —

Dimensions Height inch (mm) 6 - 1/2 (165) 19 - 29/32 (505)

Width inch (mm) 43 - 5/16 (1,100) 30 - 23/32 (780)

Depth inch (mm) 25 - 19/32 (650) 9 - 21/32 (245) Net Weight lb (kg) 62 (28) 88 (40) Compressor Type — Rotary (1 cylinder)

rolling piston type Motor Type — Induction (2-poles) Rated Output W — 1,100

Air Circulation Type SIROCCO Propeller Fan

Material STYLAC 181 AES + Glass Fiber 12%

Motor Type Induction (4-poles) Induction (6-poles)

Input W 45.6 58.6 Rated Output W 20 20

Fan Speed Low rpm 980 —

Medium rpm 1,055 — High rpm 1,100 730

Heat Exchanger Description Evaporator Condenser

Tube material Copper Copper Fin material Aluminium Aluminium Fin Type Louver Fin Corrugated Fin Row / Stage (Plate fin configuration, forced draft)

1×10 2×19 FPI 21 16 Size (W × H × L) mm 900 × 254 × 22 706 × 482 × 44

Refrigerant Control Device — Capillary Tube Refrigeration Oil (c.c) — SUNISO 4GDID or ATMOS M60

(410) Refrigerant (R-22) g (oz.) — 1,090 (38.5) Thermostat Electronic Control — Protection Device — Overload Protector

Length mm — Cooling; 625, Heating; 720

Capillary Tube Flow Rate l/min — Cooling; 13.5, Heating; 11.0

Inner Diameter mm — Cooling; 1.6, Heating; 1.5

Air Filter Material

Style

P.P.

Honeycomb

—

Capacity Control Capillary Tube Compressor Capacitor µF, VAC — 30 µF, 370VAC Fan Motor Capacitor µF, VAC 1.2 µF, 450VAC 1.2 µF, 400VAC

•

Specifications are subject to change without notice for further improvement.

CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

Unit CS-A18ATP5 CU-A18ATPT5

Cooling Capacity kW

BTU/h

kcal/h

Heating Capacity kW

BTU/h

kcal/h

Moisture Removal l/h

Pint/h

Power Source Phase

Cycle

Airflow Method OUTLET

SIDE VIEW TOP VIEW

5.05; 5.05; 5.10

17,200; 17,200; 17,400

4,340; 4,340; 4,390

5.35; 5.35; 5.45

18,200; 18,200; 18,600

4,600; 4,600; 4,690

2.8

5.9

Single

220; 230; 240

INTAKE

Air Volume Indoor Air (Lo) m3/min (cfm) 10.4 (354) —

Indoor Air (Me) m3/min (cfm) 10.7 (379) —

Indoor Air (Hi) m3/min (cfm) 11.5 (400) —

Noise Level dB (A) Cooling: High 50; 51; 51 Low 44; 46; 46

Heating: High 51; 52; 52 Low 45; 46; 46

Cooling: High 53; 56; 56 Heating: High 56; 57; 57

Power Noise Level dB (A) Cooling: High 64

Heating: High 65

Electrical Data Input kW Cooling: 2.08; 2.13; 2.19

Heating: 1.90; 1.98; 2.04

Running Current A Cooling: 10.3; 10.5; 10.7

Heating: 9.4; 9.7; 9.9

EER W/W (BTU/hW) Cooling: 2.43 (8.3); 2.37 (8.1); 2.33 (7.9)

COP W/W (BTU/hW) Heating: 2.82 (9.6); 2.70 (9.2); 2.67 (9.1)

Starting Current A 47

Piping Connection Port (Flare piping)

Pipe Size (Flare piping)

Drain Hose

Power Cord Length Number of core-wire

Inner diameter mm 20 — Length m 0.6 —

inch inch

G ; Half Union 1/2”

L ; Half Union 1/4” G (gas side) ; 1/2”

L (liquid side) ; 1/4”

m 2.3

3 (1.5 mm

)

Cooling: High 71 Heating: High 72

G ; 3-way valve 1/2”

L ; 2-way valve 1/4”

G (gas side) ; 1/2”

L (liquid side) ; 1/4”

— —

CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

Unit CS-A18ATP5 CU-A18ATPT5

Dimensions Height inch (mm) 6 - 1/2 (165) 26 - 31/32 (685)

Width inch (mm) 43 - 5/16 (1,100) 31 - 1/2 (800)

Depth inch (mm) 25 - 19/32 (650) 11 - 13/16 (300) Net Weight lb (kg) 66 (30) 132 (60) Compressor Type — Rotary (1 cylinder)

Motor Type — Induction (2-poles) Rated Output W — 1,700

Air Circulation Type SIROCCO Propeller Fan

Material STYLAC 181 CE10G15 JSR

Motor Type Induction (4-poles) Induction (4-poles)

Input W 66.0 136.8 (High)

Rated Output W 40 65

Fan Speed Low rpm 1,160 610

Medium rpm 1,250 —

High rpm 1,340 960 Heat Exchanger Description Evaporator Condenser

Tube material Copper Copper Fin material Aluminium Aluminium Fin Type Louver Fin Corrugated Fin Row / Stage (Plate fin configuration, forced draft)

2 × 10 2 × 26 FPI 20 14 Size (W × H × L) mm 900 × 254 × 44 769 × 660 × 44

Refrigerant Control Device — Capillary Tube Refrigeration Oil (c.c) — SUNISO 4GDID or ATMOS M60

Refrigerant (R-22) g (oz.) — 1,550 (54.7) Thermostat Electronic Control — Protection Device — Inner Protector

Length mm — 1,170

Capillary Tube Flow Rate l/min — 21.1

Inner Diameter mm — 2.4

Air Filter Material

Style

Capacity Control Capillary Tube Compressor Capacitor µF, VAC — 35 µF, 370VAC Fan Motor Capacitor µF, VAC 1.2 µF, 450VAC 3.5 µF, 400VAC

P.P.

Honeycomb

rolling piston type

(700)

—

•

Specifications are subject to change without notice for further improvement.

CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

Unit CS-A24ATP5 CU-A24ATPT5

Cooling Capacity kW

BTU/h

kcal/h

Heating Capacity kW

BTU/h

kcal/h

Moisture Removal l/h

Pint/h

Power Source Phase

Cycle

Airflow Method OUTLET

SIDE VIEW TOP VIEW

6.00; 6.05; 6.10

20,400; 20,600; 20,800

5,140; 5,190; 5,240

6.00; 6.05; 6.20

20,400; 20,600; 21,100

5,140; 5,190; 5,310

3.4

7.2

Single

220; 230; 240

INTAKE

Air Volume Indoor Air (Lo) m3/min (cfm) 10.4 (370) —

Indoor Air (Me) m3/min (cfm) 11.2 (395) —

Indoor Air (Hi) m3/min (cfm) 12.0 (420) —

Noise Level dB (A) Cooling: High 51; 52; 52 Low 45; 47; 47

Heating: High 51; 52; 52 Low 45; 47; 47

Cooling: High 57; 59; 59 Heating: High 58; 60; 60

Power Noise Level dB (A) Cooling: High 65

Heating: High 65

Electrical Data Input kW Cooling: 2.75; 2.80; 2.89

Heating: 2.40; 2.59; 2.62

Running Current A Cooling: 13.3; 13.4; 13.6

Heating: 11.7; 12.3; 12.5

EER W/W (BTU/hW) Cooling: 2.18 (7.4); 2.16 (7.4); 2.11 (7.2)

COP W/W (BTU/hW) Heating: 2.50 (8.5); 2.33 (8.0); 2.37 (8.1)

Starting Current A 59

Piping Connection Port (Flare piping)

Pipe Size (Flare piping)

Drain Hose

Power Cord Length Number of core-wire

Inner diameter mm 20 — Length m 0.6 —

inch inch

G ; Half Union 5/8”

L ; Half Union 1/4” G (gas side) ; 5/8”

L (liquid side) ; 1/4”

m 2.3

3 (2.5 mm

)

Cooling: High 74 Heating: High 75

G ; 3-way valve 5/8”

L ; 2-way valve 1/4”

G (gas side) ; 5/8”

L (liquid side) ; 1/4”

— —

CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

Unit CS-A24ATP5 CU-A24ATPT5

Dimensions Height inch (mm) 6 - 1/2 (165) 26 - 31/32 (685)

Width inch (mm) 43 - 5/16 (1,100) 31 - 1/2 (800)

Depth inch (mm) 25 - 19/32 (650) 11 - 13/16 (300) Net Weight lb (kg) 66 (30) 137 (62) Compressor Type — Rotary (1 cylinder)

Motor Type — Induction (2-poles) Rated Output W — 2,200

Air Circulation Type SIROCCO Propeller Fan

Material STYLAC 181 CE10G15 JSR

Motor Type Induction (4-poles) Induction (4-poles)

Input W 66.0 141.7 (High)

Rated Output W 40 80

Fan Speed Low rpm 1,160 685

Medium rpm 1,250 —

High rpm 1,340 1,053 Heat Exchanger Description Evaporator Condenser

Tube material Copper Copper Fin material Aluminium Aluminium Fin Type Louver Fin Corrugated Fin Row / Stage (Plate fin configuration, forced draft)

2 × 10 2 × 26 FPI 20 14 Size (W × H × L) mm 900 × 254 × 44 769 × 660 × 44

Refrigerant Control Device — Capillary Tube Refrigeration Oil (c.c) — SUNISO 4GDID or ATMOS M60

Refrigerant (R-22) g (oz.) — 1,900 (67.1) Thermostat Electronic Control — Protection Device — Inner Protector

Length mm — 1,170

Capillary Tube Flow Rate l/min — 21.1

Inner Diameter mm — 2.4

Air Filter Material

Style

Capacity Control Capillary Tube Compressor Capacitor µF, VAC — 45 µF, 370VAC Fan Motor Capacitor µF, VAC 1.2 µF, 450VAC 3.5 µF, 400VAC

P.P.

Honeycomb

rolling piston type

(700)

—

•

Specifications are subject to change without notice for further improvement.

3 Dimensions

CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

4 Refrigeration Cycle Diagram

CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

5 Block Diagram

CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

6 Wiring Diagram

CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

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