Panasonic CU-E18CKR User manual

OrderNo. MAC0306010C3
Room AirConditioner
CS-E18CKR CU-E18CKR / CS-E21CKR CU-E21CKR
2003 Matsushita Industrial Corp. Sdn. Bhd. (11969-T). All rights
reserved. Unauthorizedcopying and distribution isaviolation of
law.
1. Features
-Product
-Microcomputer-controlledcompressor operating frequency
-Vertical and Horizontal AirflowDirections
-Fivemodes ofoperation selection
-Powerful Modeoperation
-DelayONTimerand OFF Timer
-Remote Control withilluminablebuttons

-PowerMonitor DisplayLED
-CatechinAirPurifying Filter
-TripleDeodorizing Filter
-IonizerModeOperation
-Quiet ModeOperation
-Serviceability
-WashableFrontPanel
-BreakdownSelfDiagnosisfunction
-Environmental Protection
-Non-ozonedepletion substances refrigerant(R410A)
-QualityImprovement
-Gas leakagedetection
-Deice operation
-Autorestartcontrol
2. Functions
3. ProductSpecifications
Unit CS-E18CKR CU-
E18CKR
Cooling Capacity kW
kcal/h
BTU/h
5.30 (0.90 -6.00)
4,560 (770 -5,160)
18,100 (3,070 -20,500)
Heating Capacity kW
kcal/h
BTU/h
6.60 (0.90 -8.00)
5,680 (770 -6,880)
22,500 (3,070 -27,300)
Moisture Removal l/h
Pint/h 2.9 (6.1)
PowerSource Phase
V
Cycle
Single
230 -240
50

Unit CS-E18CKR CU-
E18CKR
AirflowMethod OUTLET
INTAKE
SIDEVIEW TOP
VIEW
AirVolume IndoorAir(Lo) m3/min(cfm) Cooling; 12.5 (440)
—
Heating; 13.9 (490)
IndoorAir(Me) m3/min(cfm) Cooling; 14.0 (490)
—
Heating; 15.5 (540)
IndoorAir(Hi) m3/min(cfm) Cooling; 15.6 (550) 40.0 (
1,410)
Heating; 17.1 (600)
dB (A) Cooling; High 44, Low
37
Cooling
Heating; High 44, Low
37
Heating
Noise Level
Powerlevel dB Cooling; High 57 Cooling;
Heating; High 57 Heating;
Electrical Data Input Power W Cooling; 1,650 (240 -
2,050)
Heating; 1,790 (280 -
2,650)
Running Current A Cooling; 7.4 -7.2
Heating; 8.0 -7.8
EER W/W Cooling; 3.21 (3.75 -
2.93)
BTU/hW Cooling; 11.0 (12.8 -
10.0)
COP W/W Heating; 3.69 (3.21 -
3.02)
BTU/hW Heating; 12.6 (11.0 -
10.3)
Starting Current A 8.0
Piping Connection Port
(Flare piping) inch inch G;HalfUnion 1/2” L;HalfUnion 1/4” G;3-way
valve
L;2-way
valve

Unit CS-E18CKR CU-
E18CKR
Pipe Size
(Flare piping) inch inch G(gas side);1/2” L(liquidside);1/4” G(gas
side)
L(liquid
side)
Drain
Hose Innerdiameter mm 12
—
Length m 0.65
—
PowerCordLength
Numberof core-wire 2.1 m 3 core wires ×1.5 mm2
—
—
Dimensions Height inch(mm) 10 -13/16 (275) 29 -17/
32
Width inch(mm) 39 -9/32 (998) 34 -7/
16
Depth inch(mm) 8 -9/32 (210) 13 -19/
32
NetWeight lb(kg) 24 (11) 108
(
Compressor Type —
Involute
Motor Type —
Brushless
Rated Output W —
900
AirCirculation Type Cross-flowFan
Propeller
Material ASHT-18
P.P
Motor Type Transistor(8-poles)
Transistor
Rate Output W 30
40
FanSpeed Lo (Cool/
Heat) rpm 1,150 / 1,270
—
Me (Cool/
Heat) rpm 1,290 / 1,410
—
Hi (Cool/
Heat) rpm 1,440 / 1,560
660
HeatExchanger Description Evaporator
Condenser
Tube material Copper
Copper
Finmaterial Aluminium (Pre Coat)
Aluminium
Coated)
FinType SlitFin
Corrugated
Row/ Stage (Plate finconfiguration,
forced
2 / 15 2 /
FPI 21
16
Size (W×H ×L) mm 810 ×315 ×25.4 849.3
878
×
36.4
Refrigerant Control Device —
Expansion
Refrigeration Oil (c.c) —
RB68A
Refrigerant (R410A) kg(oz) — 1.18
(
Thermostat Electronic Control
—
Protection Device Electronic Control
Electronic
Length mm —
—
CapillaryTube FlowRate l/min —
—
InnerDiameter mm —
—
AirFilter Material
Style P.P. Honeycomb
—
-Specificationsaresubjectedtochangewithoutnotice for further

improvement.
Unit CS-E21CKR CU-
E21CKR
Cooling Capacity kW
kcal/h
BTU/h
6.30 (0.90 -7.10)
5,420 (770 -6,110)
21,500 (3,070 -24,200)
Heating Capacity kW
kcal/h
BTU/h
7.20 (0.90 -8.50)
6,190 (770 -7,310)
24,600 (3,070 -29,000)
Moisture Removal l/h
Pint/h 3.5 (7.4)
PowerSource Phase
V
Cycle
Single
230 -240
50
AirflowMethod OUTLET
INTAKE
SIDEVIEW TOP
VIEW
AirVolume IndoorAir(Lo) m3/min(cfm) Cooling; 12.6 (440)
—
Heating; 14.0 (490)
IndoorAir(Me) m3/min(cfm) Cooling; 14.5 (510)
—
Heating; 15.8 (560)
IndoorAir(Hi) m3/min(cfm) Cooling; 16.6 (590) Cooling;
42.8
Heating; 17.7 (620) Heating;
41.5

Unit CS-E21CKR CU-
E21CKR
dB (A) Cooling; High 45, Low
37
Cooling
Heating; High 45, Low
37
Heating
Noise Level
Powerlevel dB Cooling; High 58 Cooling
;
Heating; High 58 Heating
;
Electrical Data Input Power W Cooling; 2,210 (240 -
2,540)
Heating; 2,100 (280 -
2,750)
Running Current A Cooling; 9.9 -9.5
Heating; 9.4 -9.0
EER W/W Cooling; 2.85 (3.75 -
2.80)
BTU/hW Cooling; 9.7 (12.8 -9.5)
COP W/W Heating; 3.43 (3.21 -
3.09)
BTU/hW Heating; 11.7 (11.0 -
10.5)
Starting Current A 9.4
Piping Connection Port
(Flare piping) inch inch G;HalfUnion 1/2” L;HalfUnion 1/4” G;3-way
valve
L;2-way
valve
Pipe Size
(Flare piping) inch inch G(gas side);1/2” L(liquidside);1/4” G(gas
side)
L(liquid
side)
Drain
Hose Innerdiameter mm 12
—
Length m 0.65
—
PowerCordLength
Numberof core-wire 2.1 m 3 core wires ×1.5 mm2
—
—
Dimensions Height inch(mm) 10 -13/16 (275) 29 -17/
32
Width inch(mm) 39 -9/32 (998) 34 -7/
16
Depth inch(mm) 8 -9/32 (210) 13 -19/
32
NetWeight lb(kg) 24 (11)
112
Compressor Type —
Involute
Motor Type —
Brushless
Rated Output W —
900

Unit CS-E21CKR CU-
E21CKR
AirCirculation Type Cross-flowFan
Propeller
Material ASHT-18
P.P
Motor Type Transistor(8-poles)
Transistor
Rate Output W 30
40
FanSpeed Lo (Cool/
Heat) rpm 1,150 / 1,270
—
Me (Cool/
Heat) rpm 1,330 / 1,440
—
Hi (Cool/
Heat) rpm 1,520 / 1,610 700
/
HeatExchanger Description Evaporator
Condenser
Tube material Copper
Copper
Finmaterial Aluminium (Pre Coat)
Aluminium
Coated)
FinType SlitFin
Corrugated
Row/ Stage (Plate finconfiguration,
forced
2 / 15 2 /
FPI 21
18
Size (W×H ×L) mm 810 ×315 ×25.4 849.3
878
×
36.4
Refrigerant Control Device —
Expansion
Refrigeration Oil (c.c) —
RB68A
Refrigerant (R410A) kg(oz) — 1.29
(
Thermostat Electronic Control
—
Protection Device Electronic Control
Electronic
Length mm —
—
CapillaryTube FlowRate l/min —
—
InnerDiameter mm —
—
AirFilter Material
Style P.P. Honeycomb
—
-Specificationsaresubjectedtochangewithoutnotice for further
improvement.
4. Dimensions

5. Refrigeration CycleDiagram

6. Block Diagram

7. Wiring Diagram

8. Operation Details
8.1. BASICFUNCTION
Invertercontrol, whichequippedwithamicrocomputerin
determining themost suitableoperating modeas timepasses,
automaticallyadjusts outputpowerfor maximum comfortalways.
Inordertoachievethesuitableoperatingmode, themicrocomputer
maintainstheset temperaturebymeasuring thetemperatureofthe

environmentand performing temperatureshifting. Thecompressor
at outdoor unitisoperating following thefrequencyinstructedby
themicrocomputerat indoorunitthat judging thecondition
according tointernal setting temperatureand intake air
temperature.
8.1.1. Internal Setting Temperature
Once theoperation starts, remote control setting temperaturewill
betakenas base valuefor temperatureshifting processes. These
shifting processes aredepending on theairconditionersettings
and theoperation environment.Thefinal shiftedvaluewill beused
as internal setting temperatureand itisupdatedcontinuously
whenevertheelectrical powerissuppliedtotheunit.

Table (a): Auto Operation Mode Setting
Mode Shift: Temperature Shift (°C)
Cooling/Soft DryHeating -2.0
Heating Cooling/Soft Dry +2.0
Table (b): OutdoorAirTemperature Shifting
Mode: OutdoorTemperature, X(°C): Temperature Shift (°C)
Manual Operation Auto Operation
Cooling/Soft Dry 38 X 1.50 2.00
30 X 38 1.25 1.25
23 X 30 1.25 1.25
X 23 1.75 1.75
Heating 21 X -2.25 -1.50
17 X 21 -1.75 -1.00
13 X 17 -0.75 0.00
9 X 13 0.25 0.25
5 X 9 1.25 1.00
1 X 5 0.75 1.00
-3 X 1 1.50 1.00
X -3 1.50 1.00
Table (c): Powerful Mode Shifting

Mode: Period, X(min): Temperature Shift (°C)
Cooling X 20 -2.0
X 20 0.0
Soft Dry X 20 -1.0
X 20 0.0
Heating X 20 +3.5
X 20 +3.25
Table (d): Quiet(Lo) Mode Shifting
Mode: Period, X(min): Temperature Shift (°C)
Cooling, Soft Dry 20 min X 50 min -3.0
50 min X 110 min -4.0
110 min X 440 min -5.0
Table (e): FanSpeedShifting
Mode: FanSpeed: Temperature Shift (°C)
Cooling Lo -0.25
Me-, Me, Me+, Auto 0.00
Hi +0.25
Soft Dry All +0.25
Heating Lo +1.50
Me-, Me, Me+, Auto +0.75
Hi +0.75
Table (f): Start-UpShifting
Mode within60 Minutes from Start-up: Temperature Shift (°C)
Cooling/Soft Dry -1.0
Heating +2.0
8.1.2. Compressor Operation Frequency

Intake AirTemperature -Internal Setting Temperature (°
C) Freq. H
Zone Cooling & Soft Dry Heating Cooling Soft Dry Heating
1-2.0 1.5 1 1 1
2-1.5 1.0 1 1 1
3-1.0 0.5 14 8 11
4-0.5 0.0 20 8 15
5 0.0 -0.5 27 8 22
6 0.5 -1.0 35 11 27
7 1.0 -1.5 43 11 36
8 1.5 -2.0 46 11 39
9 2.0 -2.5 46 11 39
10 2.5 -3.0 46 11 39
11 Nil -3.5 Nil Nil 39
12 Nil -4.0 Nil Nil 39
Operating FrequencyCalculation Formula:
CompHz=Freq. A×Freq. H +Freq. C
Example Calculation:
Model No.:E18CK
Operation Mode:Cooling
WhenIntake AirTemperature -Internal setting Temperature:1.5°C
CompHz=Freq. A×Freq. H +Freq. C
=1.53 ×46 +2.5
=72 Hz(Itcuts downless thana decimal
point)
Cooling & Soft Dry E18CK E21CK
Freq.
AFreq. CFreq. AFreq. C
LowLoad(Freq. H
9)
1.2 5.0 1.7 7.0
High Load(Freq. H >
10) 1.53 2.5 2.0 4.0
Heating E18CK E21CK
Freq.
AFreq. CFreq. AFreq. C
LowLoad(Freq. H
11)
1.6 8.0 1.9 7.0
High Load(Freq. H >
12) 2.2 1.0 2.35 1.0

Freq. Range E18CK E21CK
Cooling Fc 72 96
Operation
Range 12 ~86 12 ~102
Heating Fh 86 92
Operation
Range 14 ~128 14 ~128
Remarks:
WhenFreq. Hisequal to46 (Cooling), 39 (Heating)or above, the
Comp. mayrun at thefreq. higherthanFcor Fh up tomax. freq.
operation.
BestAmenityControl
Every90s (Cooling), 120s (Heating)maintainsamezoneFreq. H+1
until Fc(46), Fh (39).
8.1.3. Cooling Operation
8.1.3.1. Thermostatcontrol
-Compressor isOFF whenIntake AirTemperature-Internal Setting
Temperature<-1.5°C.
-Compressor isONafterwaiting for 3minutes, iftheIntake Air
Temperature-Internal Setting Temperature>Compressor OFF
point+0.5°C.
8.1.4. Soft DryOperation
8.1.4.1. Thermostatcontrol
-Compressor isOFF whenIntake AirTemperature-Internal Setting
Temperature<-2.5°C.
-Compressor isONafterwaiting for 3minutes, iftheIntake Air
Temperature-Internal Setting Temperature>Compressor OFF
point.

8.1.5. Heating Operation
8.1.5.1. Thermostatcontrol
-Compressor isOFF whenIntake AirTemperature-Internal Setting
>+1.5°C.
-Compressor isONafterwaiting for 3minutes, iftheIntake Air
Temperature-Internal Setting Temperature<Compressor OFF
point-0.5°C.
8.1.6. AutomaticOperation
This mode canbe setusing remote control and the operation is decidedbyremote control
setting temperature, indoorintake airtemperature and outdoorairtemperature.
During operation mode judgment, indoorfanmotor(with speedof Lo-) and outdoorfanmotor
are running for30 seconds to detectthe indoorintake and outdoorairtemperature. The
operation mode is decidedbasedon belowchart.
Values of T1, T2, and T3 depend on remote control setting temperature, as showninbelow
table. Afterthe adjustment of T1, T2 and T3 values, the operation mode forthatparticular
environment and remote control setting is judgedand performed,basedon the above operation
mode chart, every30 minutes.

Remote Control Setting Temperature (°C) T1 T2 T3
16 ~18 +10 +8 -5
19 ~22 +8 +7 -7
23 ~26 +7 +6 -7
27 ~30 +6 +5 -8
There is a temperature shifting on T1, T2, and T3 ifthe operation mode judgedis changedfrom
Cooling/Soft Dryto Heating orvice verse.
Operation Mode change from Temperature shifts (°C)
Cooling/Soft DryHeating -2
Heating Cooling/Soft Dry +2
The operation mode chartforthis example is as showninbelowfigure and the operation mode
to be performedwill depend on indoorintake airtemperature and outdoorairtemperature atthe
time whenthe judgment is made.
8.1.7. Indoor FanMotor Operation
A. Basic Rotation Speed(rpm)
-Requiredrotation speedfor fanisset torespond totheremote
control setting (10 rpm unit)
[Cooling, Dry, Fan]
Remote Control — O O O O O — —
Tab(rpm) SHI Hi Me+ Me Me- Lo Lo- SLo
SSLo
E18CK 1530 1440 1360 1290 1220 1150 850 760
630
E21CK 1610 1520 1420 1330 1240 1150 890 800
630
[Heating]