Airwell GC 43 User manual

CKD DCI Series
JANUARY ─2010
Indoor Units Outdoor Units
CKD 036 GCD 036
CKD 045 GC 43
REFRIGERANT R410A
HEAT PUMP

A
LIST OF EFFECTIVE PAGES
SM CKDDCI 2-A.3 GB
LIST OF EFFECTIVE PAGES
Note: Changes in the pages are indicated by a “Revision#” in the footer of each effected page
(when none indicates no changes in the relevant page). All pages in the following list represent
effected/ non effected pages divided by chapters.
Dates of issue for original and changed pages are:
Original ....... 0 ........ February 2007
Total number of pages in this publication is 122 consisting of the following:
Page
No.
Revision
No. #
Page
No.
Revision
No. #
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No.
Revision
No. #
Title ....................... 3
A ...........................3
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2-1 - 2-2 ................3
3-1 ........................3
4-1 - 4-2 ................3
5-1 - 5-11 ..............3
6-1 - 6-2 ................3
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16-1 ......................3
●Zero in this column indicates an original page.
*Due to constant improvements please note that the data on this service manual can be modified with out notice.
** Photos are not contractual.

i
TABLE OF CONTENTS
SM CKDDCI 2-A.3 GB
Table of Contents
1. INTRODUCTION ...................................................................................................1-1
2. PRODUCT DATA SHEET......................................................................................2-1
3. RATING CONDITIONS..........................................................................................3-1
4. OUTLINE DIMENSIONS .......................................................................................4-1
5. PERFORMANCE DATA & PRESSURE CURVES ................................................5-1
6. SOUND LEVEL CHARACTERISTICS ..................................................................6-1
7. ELECTRICAL DATA..............................................................................................7-1
8. WIRING DIAGRAMS .............................................................................................8-1
9. REFRIGERATION DIAGRAMS.............................................................................9-1
10. TUBING CONNECTIONS......................................................................................10-1
11. OPTIONAL ACCESSORIES .................................................................................11-1
12. CONTROL SYSTEM .............................................................................................12-1
13. TROUBLESHOOTING ..........................................................................................13-1
14. SERVICING ...........................................................................................................14-1
15. EXPLODED VIEWS AND SPARE PARTS LISTS.................................................15-1
16. APPENDIX A .........................................................................................................16-1

1-1
INTRODUCTION
SM CKDDCI 2-A.3 GB
1. INTRODUCTION
1.1 General
The new GCD 036 DCR, GC 36-43 DC INVERTER split unit range comprises the
following RC (heat pump) models:
• CKD 036
• CKD 045
Remote control compatibility
The units are compatible with remote controls RC3, RC4, RCW1, RCW2, RC7.
Inverter description
Unlike standard units (fix RPM) that are selected according to their nominal capacity to
overcome the maximum required load, DC Inverter units can be selected to a smaller
nominal capacity range unit.
It made possible due to the ability of inverters to reach a much higher capacity level
(indicated as Maximum Capacity) which is around 115-130% of the nominal capacity.
1.2 Main Features
High Technology
•Sine wave DC Compressor drive.
•DC-BL-SL (DC Brush-Less Sensor less) Inverter Compressor.
•DC-BL Inverter Outdoor Fan.
•Fuzzy Logic Adaptive Control.
System Features
•Variable cooling and heating capacity from 30% to 115% (of rated capacity).
•High COP “A-B” class energy rating (Most units).
•Low noise levels.
•Pre-charged system up to 30m.
•Tubing up to 70m length / 30m height difference.
•Networking connectivity.
•Current limitation setting for circuit breaker size reduction (if required).
•Dry contact inputs:
♦Standby.
♦Night mode (for silent operation in cooling).
Power Shedding (to control maximum power consumption).
•Dry contact output:
♦Alarm
♦Base Heater
♦Crank Case Heater
•HMI Display consists of 7-segments shows system diagnostics and setup.
•Monitoring software (PC port for high level service).
•Cooling operation at outdoor temperature down to -10°C.

1-2
INTRODUCTION
SM CKDDCI 2-A.3 GB
•Heating operation at outdoor temperature down to -15°C.
•Up to 100Pa (GC 36-43 DCI)
1.3 Indoor Unit
1.3.1. CASSETTE - CKD
The CKD 036, 045 DCI 90x90cm is part of the new indoor unit family of cassette units.
It is an extension of the present 60x60 CK/CN DCI family.
These new models will support the light commercial line and addition to the 4-5-6HP
family.
It comprises of the following features:
New and modern design for easy integration in all decors.
Designed for integration in suspended ceilings.
Integrated condensate drainage lift pump.
Four motorized air distribution flaps.
Air distribution to an adjacent room.
High efficiency filtration.
Fresh air intake.
Easy access to electrical components without the need for Opening of ceiling.
1.4 Filtration
•The unit is equipped with pre filters.
•Easy and versatile access, rear or bottom, can be easily adjusted by the installer.
1.5 Control
The micro processor indoor controller, and an infrared remote control, supplied as
standard, provides complete operating function and programming.
For further details, please refer to the Operation Manual, Appendix A.
1.6 Outdoor Unit
The DCI outdoor units can be installed as floor or wall mounted units by using a wall-
supporting bracket. The metal sheets are protected by anti- corrosion paint work allowing
long life resistance. All outdoor units are pre-charged. For further information, please
refer to the Product Data Sheet, Chapter 2.
•Compressor mounted in a soundproofed compartment.
•Improved 3-blades axial fans for noise reduction.
•Outdoor coil with hydrophilic fins optimized for operation with R410A refrigerant.
•Fan grill air outlet.
•Service valves” flare” type connection.
•Service ports for high/ low pressure measurement.
•Interconnecting wiring terminal blocks.

1-3
INTRODUCTION
SM CKDDCI 2-A.3 GB
1.7 Tubing Connections
Flare type-interconnecting tubing to be produced on site.
Units can be installed with 70-meter pipe length and 30 meter height difference without
oil traps.
For further details, please refer to the Installation Manual, Chapter 17.
1.8 Accessories
No. Item
1. RCW Wall Mounted Remote Control
2. RCW2 (BMS) Wall Mounted Remote Control
3. Base Heater
4. Crank case Heater
5. Room thermostat
For further details, please refer the Optional Accessories, Chapter 16.
1.9 Inbox Documentation
Each unit includes its own installation and operation manuals.
1.10 Matching Table
1.10.1 R410A
INDOOR UNITS
MODEL CKD 036 CKD 045
GCD036 DCR √
GC 43 DCI √
OUTDOOR UNITS

2-1
PRODUCT DATA SHEET
SM CKDDCI 2-A.3 GB
2. PRODUCT DATA SHEET
2.1 CKD 036 DCI / GCD 036 DCR
Model Indoor Unit CKD 036 DCI
Model Outdoor Unit GCD 036 DCR
Installation Method CASSETTE
Characteristics Units Cooling Heating
Capacity - Nominal (Minimum ~ Maximum)(1) Btu/hr 30,700 (8,900 – 34,120) 35,150 (8,200 – 39,250)
kW 9.0 (2.6 – 10.0) 10.3 (2.4 – 11.5)
Power Input - Nominal (Minimum ~ Maximum)( (1) W 3,100 (750 – 3,850) 3,430 (520 – 3,960)
EER (Cooling) / COP (Heating)(1) W/W 2.9 3.0
Energy Efficiency Class - “C” “D”
Power Supply V/Ph/Hz 220-240/1/50
Rated Current (Nominal) A 13.0 14.4
Starting Current A <10
Circuit Breaker Rating A 25
INDOOR
Fan Type & Quantity CENTRIFUGAL x1
Fan Speed H/M/L RPM 580 540 500
Airflow(2) H/M/L m3/hr 1170 1080 990
External Static Pressure Min-Nom-Max Pa -
Sound Power Level(3) H/M/L dB (A) 44 42 40
Sound Pressure Level (4) H/M/L dB (A) 53 51 49
Moisture Removal (Nominal) L/hr 3.7
Condensate Drain Tube I.D. mm 19
Dimensions W/H/D mm 840 300 840
Weight kg 32(+6kf Panel)
Package Dimensions W/H/D mm 950 317 950
Packaged Weight kg 40(+6kg Panel)
Units per Pallet Units 6
Stacking Height Units 6
OUTDOOR
Refrigerant Control Electronic Expansion Valve
Compressor Type, Model Scroll
Motor type DCBL Inverter
Fan Type & Quantity Axial 2x 400mm
Fan Speed RPM 1100-100 (continuous)
Airflow Max m3/hr 4,150
Sound Power Level Nom C/H dB (A) 67 69
Sound Pressure Level (4) Nom C/H dB (A) 57 59
Dimensions W/H/D mm 900 970 340
Weight kg 76
Package Dimensions W/H/D mm 985 1020 435
Packaged Weight kg 81
Units per Pallet Units 6
Stacking Height Units 2
Refrigerant Type R410A
Refrigerant Charge (STD connected Tube
Length) kg (m) 2.5 / 30
Additional Charge g/m 30
Connections
Between Units
Liquid Line In (mm) 3/8”
Suction Line In (mm) 5/8”
Max. Tubing Length m 70
Max. Height Difference m 30
Operation Control Type LCD Remote Control
Heating Elements kW BH 70W - optional
Others
(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units).
(2) Airflow in ducted units; at nominal external static pressure.
(3) Sound power in ducted units is measured at air discharge.
(4) Sound pressure level measured at 1.0 meter distance from unit.

2-2
PRODUCT DATA SHEET
SM CKDDCI 2-A.3 GB
2.2 CKD 045 DCI / GC 43 DCI
Model Indoor Unit CKD 045 DCI
Model Outdoor Unit GC 43 DCI
Installation Method CASSETTE
Characteristics Units Cooling Heating
Capacity - Nominal (Minimum ~ Maximum)(1) Btu/hr 41,300 (8,550 – 44,350) 46,050 (8,850 – 49,150)
kW 12.1 (2.5 – 13.0) 13.5 (2.6 – 14.4)
Power Input - Nominal (Minimum ~ Maximum)( (1) W 4,400 (1,400 – 5,150) 4,800 (950 – 5,600)
EER (Cooling) / COP (Heating)(1) W/W 2.75 2.8
Energy Efficiency Class - “D” “D”
Power Supply V/Ph/Hz 220-230/1/50
Rated Current (Nominal) A 19.5 21.3
Starting Current A <10
Circuit Breaker Rating A 32
INDOOR
Fan Type & Quantity CENTRIFUGAL x1
Fan Speed H/M/L RPM 810 650 590
Airflow(2) H/M/L m3/hr 1,600 1,330 1,200
External Static Pressure Min-Nom-Max Pa -
Sound Power Level(3) H/M/L dB (A) 63 57 53
Sound Pressure Level (4) H/M/L dB (A) 53 47 43
Moisture Removal (Nominal) L/hr 5.4
Condensate Drain Tube I.D. mm 19
Dimensions W/H/D mm 840 300 840
Weight kg 32(+6kg Panel)
Package Dimensions W/H/D mm 950 317 950
Packaged Weight kg 40(+6kg Panel)
Units per Pallet Units 6
Stacking Height Units 6
OUTDOOR
Refrigerant Control Electronic Expansion Valve
Compressor Type, Model Scroll
Motor type DCBL Inverter
Fan Type & Quantity Axial 2x 493mm
Fan Speed RPM 900-100 (continuous)
Airflow Max m3/hr 5,700
Sound Power Level Nom C/H dB (A) 69 70
Sound Pressure Level (4) Nom C/H dB (A) 56 58
Dimensions W/H/D mm 900 1255 340
Weight kg 110
Package Dimensions W/H/D mm 985 1395 435
Packaged Weight kg 120
Units per Pallet Units 3
Stacking Height Units 1
Refrigerant Type R410A
Refrigerant Charge (STD connected Tube
Length) kg (m) 3.1 / 30
Additional Charge g/m 40
Connections
Between Units
Liquid Line In (mm) 3/8”
Suction Line In (mm) 3/4”
Max. Tubing Length m 70
Max. Height Difference m 30
Operation Control Type LCD Remote Control
Heating Elements kW BH 70W - optional
Others
(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units).
(2) Airflow in ducted units; at nominal external static pressure.
(3) Sound power in ducted units is measured at air discharge.
(4) Sound pressure level measured at 1.0 meter distance from unit.

3-1
RATING CONDITIONS
SM CKDDCI 2-A.3 GB
3. RATING CONDITIONS
Standard conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and
EN 14511.
Cooling:
Indoor: 27oC DB 19oC WB
Outdoor: 35 oC DB
Heating:
Indoor: 20oC DB
Outdoor: 7oC DB 6oC WB
3.1 Operating Limits
Indoor Outdoor
Cooling Upper limit 32oC DB 23oC WB 46oC DB
Lower limit 21oC DB 15oC WB -10oC DB
Heating Upper limit 27oC DB 24oC DB 18oC WB
Lower limit 10oC DB -15oC DB -16oC WB
Voltage GC 36-43 DCI 198 – 253V
GCD 036 DCR 198 – 264V

4-1
OUTLINE DIMENSIONS
SM CKDDCI 2-A.3 GB
4. OUTLINE DIMENSIONS
4.1 Indoor Unit: CKD 036 / 045 DCI
Necessary room
outlet inlet outlet
ground
Drain side Tubing side
780 (Hook-location)
840 (Body)
880 (Ceiling hole)
950 (Panel)
(Unit: mm)
)noitacol-kooH(087
)ydoB(048
)elohgnilieC(088
)lenaP(059

4-2
OUTLINE DIMENSIONS
SM CKDDCI 2-A.3 GB
4.2 Outdoor Unit: GCD 036 DCR
4.3 Outdoor Unit: GC 43 DCI

5-1
PERFORMANCE DATA & PRESSURE CURVES
SM CKDDCI 2-A.3 GB
5. PERFORMANCE DATA & PRESSURE CURVES
5.1 CKD 036 DCI / GCD 036 DCR
5.1.1 Cooling Capacity (kW)
ID COIL ENTERING AIR DB/WB TEMPERATURE
[ºC]
OD COIL ENTERING AIR
DB TEMPERATURE [ºC] DATA 22/15 24/17 27/19 29/21 32/23
-10 - 20
(protection range)
TC 80 - 110 % of nominal
SC 80 - 105 % of nominal
PI 25 - 50 % of nominal
25
TC 8.70 9.27 9.84 10.41 10.97
SC 6.45 6.58 6.72 6.85 6.98
PI 2.44 2.48 2.53 2.58 2.62
30
TC 8.28 8.85 9.42 9.99 10.56
SC 6.29 6.42 6.55 6.68 6.82
PI 2.72 2.77 2.81 2.86 2.91
35
TC 7.86 8.43 9.00 9.57 10.14
SC 6.13 6.26 6.39 6.52 6.65
PI 3.01 3.05 3.10 3.15 3.19
40
TC 7.44 8.01 8.58 9.15 9.72
SC 5.96 6.10 6.23 6.36 6.49
PI 3.29 3.34 3.39 3.43 3.48
46
TC 6.94 7.51 8.08 8.65 9.22
SC 5.77 5.90 6.03 6.16 6.29
PI 3.63 3.68 3.73 3.77 3.82
LEGEND
TC – Total Cooling Capacity, kW
SC – Sensible Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (oC)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OD – Outdoor
5.1.2 Capacity Correction Factors (Cooling)
Cooling Capacity Ratio Vs. Outdoor Temperature
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
20 25 30 35 40 45
Outdoor Temperature [deg C]
Capacity Ratio

5-2
PERFORMANCE DATA & PRESSURE CURVES
SM CKDDCI 2-A.3 GB
5.1.3 Heating Capacity
ID COIL ENTERING AIR DB TEMPERATURE [°C]
OD COIL ENTERING
AIR DB/WB
TEMPERATURE [°C]
DATA 15 20 25
-15/-16 TC 6.56 6.10 5.64
PI 2.06 2.27 2.48
-10/-12 TC 7.30 6.84 6.38
PI 2.48 2.69 2.90
-7/-8 TC 7.85 7.40 6.94
PI 2.80 3.01 3.22
-1/-2 TC 8.13 7.67 7.22
PI 2.96 3.17 3.38
2/1 TC 8.32 7.86 7.40
PI 3.06 3.27 3.48
7/6 TC 10.76 10.30 9.84
PI 3.22 3.43 3.64
10/9 TC 11.35 10.89 10.43
PI 3.41 3.62 3.83
15/12 TC 11.94 11.49 11.03
PI 3.61 3.81 4.02
15-24 TC 85 - 105 % of nominal
(Protection Range) PI 80 - 120 % of nominal
LEGEND
TH – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (oC)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OD – Outdoor
5.1.4 Capacity Correction Factors (Heating)
Heating Capacity Ratio Vs. Outdoor Temperature
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
-15 -10 -5 0 5 10 15
Outdoor WB Temperature [deg C]
Capacity Ration

5-3
PERFORMANCE DATA & PRESSURE CURVES
SM CKDDCI 2-A.3 GB
5.1.5 Pressure Curves (Cooling – Technician Mode)
5.8.5.1 Cooling
Suction Pressure - Cooling (Technician Mode)
500
600
700
800
900
1000
1100
1200
1300
1400
10 15 20 25 30 35 40 45
Outdoor DB Temperature [°C]
Suction Pressure
[KPa(g)]
32/23
29/21
27/19
24/17
22/15
Discharge Pressure - Cooling (Technician Mode)
1000
1250
1500
1750
2000
2250
2500
2750
3000
3250
3500
3750
4000
10 15 20 25 30 35 40 45
Outdoor DB Temperature [°C]
Discharge Pressure
[KPa(g)]
32/23
29/21
27/19
24/17
22/15

5-4
PERFORMANCE DATA & PRESSURE CURVES
SM CKDDCI 2-A.3 GB
5.1.5.2 Heating
Suction Pressure - Heating (Technician Mode)
200
300
400
500
600
700
800
900
1000
1100
1200
1300
-15 -10 -5 0 5 10 15
Outdoor WB Temperature [°C]
Suction Pressure [KPa(g)]
15
20
25
Discharge Pressure - Heating (Technician Mode)
1000
1250
1500
1750
2000
2250
2500
2750
3000
3250
3500
3750
4000
-15 -10 -5 0 5 10 15
Outdoor WB Temperature [°C]
Discharge Pressure
[KPa(g)]
15
20
25

5-5
PERFORMANCE DATA & PRESSURE CURVES
SM CKDDCI 2-A.3 GB
5.2 CKD 045 DCI / GC 43 DCI
5.2.1 Cooling Capacity (kW)
ID COIL ENTERING AIR DB/WB TEMPERATURE [C]
OD COIL
ENTERING AIR DB
TEMPERATURE [C]
DATA 22/15 24/17 27/19 29/21 32/23
-10 – 20
(protection range)
TC 80 - 110 % of nominal
SC 80 - 105 % of nominal
PI 25 - 50 % of nominal
25
TC 11.70 12.46 13.23 13.99 14.75
SC 8.55 8.73 8.90 9.08 9.25
PI 3.38 3.44 3.51 3.57 3.64
30
TC 11.13 11.90 12.66 13.43 14.19
SC 8.34 8.51 8.69 8.86 9.03
PI 3.78 3.84 3.90 3.97 4.03
35
TC 10.57 11.34 12.10 12.86 13.63
SC 8.12 8.30 8.47 8.64 8.82
PI 4.17 4.24 4.40 4.36 4.43
40
TC 10.01 10.77 11.54 12.30 13.07
SC 7.91 8.08 8.25 8.43 8.60
PI 4.57 4.63 4.70 4.76 4.82
46
TC 9.33 10.10 10.86 11.63 12.39
SC 7.65 7.82 7.99 8.17 8.34
PI 5.04 5.11 5.17 5.23 5.30
LEGEND
TC – Total Cooling Capacity, kW
SC – Sensible Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (oC)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OD – Outdoor
5.2.2 Capacity Correction Factors (Cooling)
Cooling Capacity Ratio Vs. Outdoor Temperature
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
20 25 30 35 40 45
Outdoor Temperature [deg C]
Capacity Ratio

5-6
PERFORMANCE DATA & PRESSURE CURVES
SM CKDDCI 2-A.3 GB
5.2.3 Heating Capacity
ID COIL ENTERING AIR DB TEMPERATURE [°C]
OD COIL ENTERING
AIR DB/WB
TEMPERATURE [°C]
DATA 15 20 25
-15/-16 TC 8.53 7.93 7.34
PI 3.09 3.41 3.72
-10/-12 TC 9.49 8.90 8.30
PI 3.73 4.04 4.35
-7/-8 TC 10.22 9.62 9.02
PI 4.20 4.52 4.83
-1/-2 TC 10.58 9.98 9.39
PI 4.44 4.75 5.07
2/1 TC 10.82 10.22 9.63
PI 4.60 4.91 5.23
7/6 TC 14.00 13.50 12.80
PI 4.84 4.80 5.46
10/9 TC 14.77 14.17 13.58
PI 5.12 5.44 5.75
15/12 TC 15.54 14.94 14.35
PI 5.41 5.73 6.04
15-24 TC 85 - 105 % of nominal
(Protection Range) PI 80 - 120 % of nominal
LEGEND
TH – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (oC)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OD – Outdoor
5.2.4 Capacity Correction Factors (Heating)
Heating Capacity Ratio Vs. Outdoor Temperature
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
-15 -10 -5 0 5 10 15
Outdoor WB Temperature [deg C]
Capacity Ration

5-7
PERFORMANCE DATA & PRESSURE CURVES
SM CKDDCI 2-A.3 GB
5.2.5 Pressure Curves (Cooling – Technician Mode)
5.2.5.1 Cooling
Suction Pressure - Cooling (Technician Mode)
500
600
700
800
900
1000
1100
1200
1300
1400
10 15 20 25 30 35 40 45
Outdoor DB Temperature [°C]
Suction Pressure
[KPa(g)]
32/23
29/21
27/19
24/17
22/15
Discharge Pressure - Cooling (Technician Mode)
1000
1250
1500
1750
2000
2250
2500
2750
3000
3250
3500
3750
4000
10 15 20 25 30 35 40 45
Outdoor DB Temperature [°C]
Discharge Pressure
[KPa(g)]
32/23
29/21
27/19
24/17
22/15

5-8
PERFORMANCE DATA & PRESSURE CURVES
SM CKDDCI 2-A.3 GB
5.2.5.2 Cooling
Suction Pressure - Heating (Technician Mode)
200
300
400
500
600
700
800
900
1000
1100
1200
1300
-15 -10 -5 0 5 10 15
Outdoor WB Temperature [°C]
Suction Pressure [KPa(g)]
15
20
25
Discharge Pressure - Heating (Technician Mode)
1000
1250
1500
1750
2000
2250
2500
2750
3000
3250
3500
3750
4000
-15 -10 -5 0 5 10 15
Outdoor WB Temperature [°C]
Discharge Pressure [KPa(g)]
15
20
25

5-9
PERFORMANCE DATA & PRESSURE CURVES
SM CKDDCI 2-A.3 GB
5.3 Capacity Correction Factor for Tubing Length
5.3.1 Cooling
5.3.2 Heating
0.75
0.80
0.85
0.90
0.95
1.00
1.05
5 10152025303540455055606570
Tubing Lenght [m]
Capacity Ratio
0.75
0.80
0.85
0.90
0.95
1.00
1.05
5 10152025303540455055606570
Tubing Lenght [m]
Capacity Ratio