Page 1
Service Manual
DUO Series
REFRIGERANT
R410A
HEAT PUMP
COOLING ONLY
FEBRUARY - 2006
DUO Outdoor Models
DUO OU7 (9+9)
DUO OU7 (9+12)
DUO OU7 (12+12)
Page 2
A
LIST OF EFFECTIVE PAGES
Revision Y05-02
Service Manual - DUO Series
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 ........March 2005
Total number of pages in this publication is 59 consisting of the following:
Page
No.
Revision
No. #
Page
No.
Revision
No. #
Page
No.
Revision
No. #
Title ....................... 2
A ........................... 2
i ............................. 1
1-1 ........................ 2
2-1 - 2-9 ................ 2
3-1 ........................ 1
4-1 - 4-2 ................ 2
5-1 - 5-21 .............. 2
6-1 ........................ 2
7-1 ........................ 1
8-1 ........................ 1
9-1 ........................ 1
10-1 ...................... 1
11-1 ....................... 2
12-1 ...................... 2
13-1-13-2 .............. 1
14-1-14-8 .............. 2
Appendix A .............1
• 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
Page 3
i
TABLE OF CONTENTS
Revision Y05-02Service Manual - DUO Series
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 AND PRESSURE CURVES ..........................................5-1
6. CHARACTERISTICS SOUND LEVEL ..................................................................6-1
7. ELECTRICAL DATA ..............................................................................................7-1
8. WIRING DIAGRAMS .............................................................................................8-1
9. ELECTRICAL CONNECTIONS .............................................................................9-1
10. REFRIGERATION DIAGRAMS .............................................................................10-1
11. TUBING CONNECTIONS ......................................................................................11-1
12. CONTROL SYSTEM .............................................................................................12-1
13. TROUBLESHOOTING ..........................................................................................13-1
14. EXPLODED VIEWS AND SPARE PARTS LISTS .................................................14-1
15. APPENDIX A .........................................................................................................15-1
Page 4
1-1
INTRODUCTION
Revision Y05-02Series Manual - DUO Series
1. INTRODUCTION
1.1 General
The DUO multi split R410A outdoor unit series, comprise the following ST (cooling only)
and RC (heat pump) models:
• Cooling Only OU7 (9+9) ST, OU7 (9+12) ST, OU7 (12+12) ST
• Heat Pump OU7 (9+9) RC, OU7 (9+12) RC, OU7 (12+12) RC
1.2 Main Features
• R410A refrigerant
• Built in Deicing Controller.
• High COP
• Outdoor coil with hydrophilic louver fins for RC units.
• Metal sheets protected by anti - corrosion paint work allowing long life
resistance.
• Compressor mounted in a soundproofed compartment
• Easy installation and service.
1.3 Tubing Connections
Flare type interconnecting tubing to be produced on site.
For further details please refer to APPENDIX A on this manual, and to the relevant
indoor service Manual,
1.4 Inbox Documentation
Each indoor unit is supplied with its own installation and operation manuals, an
additional instillation guide is provided in the DUO outdoor package.
1.5 Matching Table
OUTDOOR UNITS
INDOOR UNITS
MODEL REFRIGERANT WNG9 WNG12 ALPHA 9 ALPHA 12
DUO 9+9 ST/RC R410A
√√
DUO 9+12 ST/RC R410A
√√√√
DUO 12+12 ST/RC R410A
√√
Page 5
2-1
PRODUCT DATA SHEET
Revision Y05-02Service Manual - DUO Series
2. PRODUCT DATA SHEET
Model Indoor Unit WNG 9+9
Model Outdoor Unit OU7-0909
Installation Method Wall Mounted
Characteristics Units Cooling Heating
Btu/hr 19520 18315
Capacity
(1)
kW 5.72 5.37
Power Input
(1)
kW 1.78 1.67
COP
(1)
W/W 3.2 3.2
Power Supply V/Ph/Hz 230/1/50+/-10%
Rated Current A 7.7 7.3
Starting Current A 37.4
Circuit Breaker Rating A 16
Fan Type & Quantity Crossflow*1
Airflow
(2)
H/M/L m3/hr 450 380 330
External Static Pressure Min-Max Pa N/A
Sound Power Level
(3)
H/M/L dB (A) 44 46 49
Sound Pressure Level
(4)
H/M/L dB (A) 28 31 35
Moisture Removal L/hr 2*0.9
Condensate Drain Tube I.D. mm 16
Dimensions W/H/D mm 810*190*285
Weight kg 11
Package Dimensions W/H/D mm 945*395*655
Units per Pallet Units 32
ROODNI
Stacking Height Units 8
Refrigerant Control Capillary tube
Compressor Type, Model Rotary
Fan Type & Quantity Axial*1
Fan Speeds H/L RPM 850
Airflow H/L m
3
/hr 3100
Sound Power Level H/L dB (A) 66.8
Sound Pressure Level
(4)
H/L dB (A) 59
Dimensions W/H/D mm 900*680*340
Weight kg 72
Package Dimensions W/H/D mm 985*730*406
Packaged Weight kg 74
Units per Pallet Units 6
Stacking Height Units 2
Refrigerant Type R410A
Refrigerant Charge ST/ RC outdoor gr 750+750 / 730+730
Liquid Line In 2*6.35(1/4")
Suction Line In 2*9.53(3/8")
Max. Tubing Length m 15
ROODTUO
Connections
Between Units
Max. Height Difference
m 7
Operation Control Type LC D REMOTE CONTROL
Heating Elements kW NO
Others
1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN14511.
(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 meter distance from unit.
2.1 WNG 9+9 / OU7- 0909
18.7 / 18.7
Page 6
2-2
PRODUCT DATA SHEET
Revision Y05-02 Service Manual - DUO Series
Model Indoor Unit WNG 9+12
Model Outdoor Unit OU7-0912
Installation Method Wall Mounted
Characteristics Units Cooling Heating
Btu/hr 20230 20910
Capacity
(1)
kW 5.93 6.13
Power Input
(1)
kW 2.07 1.97
COP
(1)
W/W 2.86 3.1
Power Supply V/Ph/Hz 230/1/50
Rated Current A 9.1 8.7
Starting Current A 43
Circuit Breaker Rating A 16
Fan Type & Quantity Crossflow*1
Airflow
(2)
H/M/L m3/hr 450+635 380+550 330+450
External Static Pressure Min-Max Pa N/A
Sound Power Level
(3)
H/M/L dB (A) 44+49 46+53 49+56
Sound Pressure Level
(4)
H/M/L dB (A) 28+35 31+39 35+43
Moisture Removal L/hr 0.9+1.3
Condensate Drain Tube I.D. mm 16
Dimensions W/H/D mm 810*190*285
Weight kg 11+11.5
Package Dimensions W/H/D mm 945*395*655
Units per Pallet Units 32
ROODNI
Stacking Height Units 8
Refrigerant Control Capillary
Compressor Type, Model Rotary
Fan Type & Quantity Axial*1
Fan Speeds H/L RPM 850
Airflow H/L m
3
/hr 3100
Sound Power Level H/L dB (A) 66.8
Sound Pressure Level
(4)
H/L dB (A) 59
Dimensions W/H/D mm 900*680*340
Weight kg 74
Package Dimensions W/H/D mm 985*730*406
Packaged Weight kg 76
Units per Pallet Units 6
Stacking Height Units 2
Refrigerant Type R410A
Refrigerant Charge ST/ RC outdoor gr 830+670 / 830+670
Liquid Line In 2*6.35(1/4")
Suction Line In 2*9.53(3/8")
Max. Tubing Length m 15
ROODTUO
Connections
Between Units
Max. Height Difference m 7
Operation Control Type LCD REMOTE CONTROL
Heating Elements kW NO
Others
1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN14511.
(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 meter distance from unit.
2.1.1 WNG 9+12 / OU7- 0912
18.7 / 24.0
Page 7
2-3
PRODUCT DATA SHEET
Revision Y05-02Service Manual - DUO Series
Model Indoor Unit Alpha 9+9
Model Outdoor Unit OU7-0909
Installation Method Wall Mounted
Characteristics Units Cooling Heating
Btu/hr 17400 17460
Capacity
(1)
kW 5.1 5.12
Power Input
(1)
kW 1.73 1.74
COP
(1)
W/W 2.95 2.9
Power Supply V/Ph/Hz 230/1/50
Rated Current A 7.6 7.7
Starting Current A 37.4
Circuit Breaker Rating A 16
Fan Type & Quantity Crossflow*1
Airflow
(2)
H/M/L m3/hr 450 350
External Static Pressure Min-Max Pa N/A
Sound Power Level
(3)
H/M/L dB (A) 52 47
Sound Pressure Level
(4)
H/M/L dB (A) 40 36
Moisture Removal L/hr 2*0.9
Condensate Drain Tube I.D. mm 16
Dimensions W/H/D mm 680*250*180
Weight kg 7
Package Dimensions W/H/D mm 770*325*265
Units per Pallet Units 36
ROODNI
Stacking Height Units 9
Refrigerant Control Capillary tube
Compressor Type, Model Rotary
Fan Type & Quantity Axial*1
Fan Speeds H/L RPM 850
Airflow H/L m
3
/hr 3100
Sound Power Level H/L dB (A) 66.8
Sound Pressure Level
(4)
H/L dB (A) 59
Dimensions W/H/D mm 900*680*340
Weight kg 72
Package Dimensions W/H/D mm 985*730*406
Packaged Weight kg 74
Units per Pallet Units 6
Stacking Height Units 2
Refrigerant Type R410A
Refrigerant Charge ST/ RC outdoor gr 750+750 / 730+730
Liquid Line In 2*6.35(1/4")
Suction Line In 2*9.53(3/8")
Max. Tubing Length m 15
ROODTUO
Connections
Between Units
Max. Height Difference
m 7
Operation Control Type LC D REMOTE CONTROL
Heating Elements kW NO
Others
1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN14511.
(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 meter distance from unit.
2.1.2 ALPHA 9+9 / OU7- 0909
360
49
3541
740*310*250
18.7 / 18.7
Page 8
2-4
PRODUCT DATA SHEET
Revision Y05-02 Service Manual - DUO Series
Model Indoor Unit ALPHA 9+12
Model Outdoor Unit OU7-0912
Installation Method Wall Mounted
Characteristics Units Cooling Heating
Btu/hr 19815 21020
Capacity
(1)
kW 5.81 6.16
Power Input
(1)
kW 2.06 2.09
COP
(1)
W/W 2.82 2.93
Power Supply V/Ph/Hz 230/1/50+/-10%
Rated Current A 9 9.2
Starting Current A 43
Circuit Breaker Rating A 16
Fan Type & Quantity Crossflow *1
Airflow
(2)
H/M/L m3/hr 600+450 450+350
External Static Pressure Min-Max Pa N/A
Sound Power Level
(3)
H/M/L dB (A) 54+52 47+47
Sound Pressure Level
(4)
H/M/L dB (A) 42+40 36+36
Moisture Removal L/hr 0.9+1.3
Condensate Drain Tube I.D. mm 16
Dimensions W/H/D mm 680*250*180/840*250*180
Weight kg 7+8
Package Dimensions W/H/D mm 930*325*265/770*325*265
Units per Pallet Units 36
ROODNI
Stacking Height Units 9
Refrigerant Control Capillary
Compressor Type, Model Rotary
Fan Type & Quantity Axial*1
Fan Speeds H/L RPM 850
Airflow H/L m
3
/hr 3100
Sound Power Level H/L dB (A) 66.8
Sound Pressure Level
(4)
H/L dB (A) 59
Dimensions W/H/D mm 900*680*340
Weight kg 74
Package Dimensions W/H/D mm 985*730*406
Packaged Weight kg 76
Units per Pallet Units 6
Stacking Height Units 2
Refrigerant Type R410A
Refrigerant Charge ST/ RC outdoor gr 830+670 / 830+670
Liquid Line In 2*6.35(1/4")
Suction Line In 2*9.53(3/8")
Max. Tubing Length m 15
ROODTUO
Connections
Between Units
Max. Height Difference m 7
Operation Control Type LCD REMOTE CONTROL
Heating Elements kW NO
Others
1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN14511.
(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 meter distance from unit.
2.1.3 ALPHA 9+12 / OU7- 0912
900*310*250/740*310*250
460+360620+450
620+450
53+53
40+41 33+35
47+49
18.7 / 24.0
Page 9
2-5
PRODUCT DATA SHEET
Revision Y05-02Service Manual - DUO Series
Model Indoor Unit WNG 12*12
Model Outdoor Unit OU7-1212
Installation Method Wall Mounted
Characteristics Units Cooling Heating
Btu/hr 23884 25000
Capacity
(1)
kW 7 7.35
Power Input
(1)
kW 2.5 2.3
COP
(1)
W/W 2.8 3.2
Energy Efficiency Class
Power Supply V/Ph/Hz 230/1/50+/-10%
Rated Current A
Starting Current A 48
Circuit Breaker Rating A
Fan Type & Quantity Crossflow*1
Fan Speed H/M/L RPM
Airflow
(2)
H/M/L m3/hr 635+635 550+550 450+450
External Static Pressure Min-Max Pa N/A
Sound Power Level
(3)
H/M/L dB (A) 56+56 53+53 49+49
Sound Pressure Level
(4)
H/M/L dB (A) 43+43 39+39 35+35
Moisture Removal L/hr 1.3+1.3
Condensate Drain Tube I.D. mm 16
Dimensions W/H/D mm 810*190*285
Weight kg 11.5+11.5
Package Dimensions W/H/D mm 945*395*655
Packaged Weight kg N/A
Units per Pallet Units 32
ROODNI
Stacking Height Units 8
Refrigerant Control Capillary
Compressor Type, Model Rotary
Fan Type & Quantity Axial*1
Fan Speeds H/L RPM 850
Airflow H/L m3/hr 3100 3100
Sound Power Level H/L dB (A) 66.8
Sound Pressure Level
(4)
H/L dB (A) 59
Dimensions W/H/D mm 900*680*340
Weight kg 74
Package Dimensions W/H/D mm 985*730*406
Packaged Weight kg 76
Units per Pallet Units 6
Stacking Height Units 2
Refrigerant Type R410A
Refrigerant Charge GR 880+880
Liquid Line In 2*6.35(1/4")
Suction Line In 2*9.53(3/8")
Max. Tubing Length m 15
ROODTUO
Connections
Between Units
Max. Height Difference m 7
Operation Control Type LCD REMOTE CONTROL
Heating Elements kW
Others
1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN14511.
(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 meter distance from unit.
2.1.4 WNG 12+12 / OU7-1212
3
16
24 / 24
Page 10
2-6
PRODUCT DATA SHEET
Revision Y05-02 Service Manual - DUO Series
Model Indoor Unit ALPHA 12*12
Model Outdoor Unit OU7-1212
Installation Method Wall Mounted
Characteristics Units Cooling Heating
Btu/hr 23884 25000
Capacity
(1)
kW 7 7.35
Power Input
(1)
kW 2.5 2.50
COP
(1)
W/W 2.8 2.94
Energy Efficiency Class
Power Supply V/Ph/Hz 230/1/50+/-10%
Rated Current A
Starting Current A 48
Circuit Breaker Rating A
Fan Type & Quantity Crossflow*1
Fan Speed H/M/L RPM
Airflow
(2)
H/M/L m3/hr 600+600 450+450
External Static Pressure Min-Max Pa N/A
Sound Power Level
(3)
H/M/L dB (A) 54+54 47+47
Sound Pressure Level
(4)
H/M/L dB (A) 42+42 36+36
Moisture Removal L/hr 1.3+1.3
Condensate Drain Tube I.D. mm 16
Dimensions W/H/D mm 840*250*180
Weight kg 8+8
Package Dimensions W/H/D mm 930*325*265
Packaged Weight kg N/A
Units per Pallet Units 36
ROODNI
Stacking Height Units 9
Refrigerant Control Capillary
Compressor Type, Model Rotary
Fan Type & Quantity Axial*1
Fan Speeds H/L RPM 850
Airflow H/L m3/hr 3100 3100
Sound Power Level H/L dB (A) 66.8
Sound Pressure Level
(4)
H/L dB (A) 59
Dimensions W/H/D mm 900*680*340
Weight kg 74
Package Dimensions W/H/D mm 985*730*406
Packaged Weight kg 76
Units per Pallet Units 6
Stacking Height Units 2
Refrigerant Type R410A
Refrigerant Charge GR 880+880
Liquid Line In 2*6.35(1/4")
Suction Line In 2*9.53(3/8")
Max. Tubing Length m 15
ROODTUO
Connections
Between Units
Max. Height Difference m 7
Operation Control Type LCD REMOTE CONTROL
Heating Elements kW
Others
1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN14511.
(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 meter distance from unit.
2.1.5 ALPHA 12+12 / OU7-1212
3
3
16
24 / 24
Page 11
2-7
PRODUCT DATA SHEET
Revision Y05-02Service Manual - DUO Series
2.2 Capacity & Additional Charge Table
2.2.1 DUO 9+9 RC Additional Refrigerant Charge Lable (as show on unit).
2.2.2 DUO 9+9 ST Additional Refrigerant Charge Lable (as show on unit).
CAPACITY AND ADDITIONAL CHARGE
FOR VARIOUS APPLICATIONS
UNIT 1 UNIT 2 UNIT 1 UNIT 2
ALPHA 9 ALPHA 9 WNG 9 WNG 9
AME 20 AME 20 NXE 20 NXE 20
INDOOR
COOLING
CAPACITY*
17400 Btu/h, 5100W 19520 Btu/h, 5720W
HEATING
CAPACITY*
17460 Btu/h, 5120W 18315 Btu/h, 5370W
Up to 7.5m
0 0 90 90
ADDITIONAL
CHARGE (gr)
7.5m-15m
100 190
* For two units operating simultaneously.
100
190
WAF 9
WAF 9
FLO
9
FLO 9
CAPACITY AND ADDITIONAL CHARGE
FOR VARIOUS APPLICATIONS
UNIT 1 UNIT 2 UNIT 1 UNIT 2
ALPHA 9 ALPHA 9 WNG 9 WNG 9
AME 20 AME 20 NXE 20 NXE 20
INDOOR
COOLING
CAPACITY*
17400 Btu/h, 5100W 19520 Btu/h, 5720W
ADDITIONAL
CHARGE (gr)
7.5m-15m
* For two units operating simultaneously.
REFRIGERANT R410A Cat.No.433945/01
100100
100
100
FLO 9
FLO 9
Page 12
2-8
PRODUCT DATA SHEET
Revision Y05-02 Service Manual - DUO Series
2.2.3 DUO 9+12 RC Additional Refrigerant Charge Lable (as show on unit).
2.2.4 DUO 9+12 ST Additional Refrigerant Charge Lable (as show on unit).
CAPACITY AND ADDITIONAL CHARGE
FOR VARIOUS APPLICATIONS
UNIT 1 UNIT 2 UNIT 1 UNIT 2
ALPHA 12 ALPHA 9 WNG 12 WNG 9
AME 30 AME 20 NXE 30 NXE 20
INDOOR
COOLING
CAPACITY*
19815 Btu/h, 5810W 20230 Btu/h, 5930W
HEATING
CAPACITY*
21020 Btu/h, 6160W 20910 Btu/h, 6130W
Up to 7.5m
0 0 90 80
ADDITIONAL
CHARGE (gr)
7.5m-15m
100
* For two units operating simultaneously.
190
180
100
WAF
12
WAF 9 FLO 12
FLO
9
CAPACITY AND ADDITIONAL CHARGE
FOR VARIOUS APPLICATIONS
UNIT 1 UNIT 2 UNIT 1 UNIT 2
ALPHA 12 ALPHA 9 WNG 12 WNG 9
AME 30 AME 20 NXE 30 NXE 20
INDOOR
COOLING
CAPACITY*
19815 Btu/h, 5810W 20230 Btu/h, 5930W
Up to 7.5m
0 0 90 80
ADDITIONAL
CHARGE (gr)
7.5m-15m
100
* For two units operating simultaneously.
REFRIGERANT R410A Cat.No.433946/01
190
100
180
WAF
12
WAF 9
FLO 12
FLO 9
Page 13
2-9
PRODUCT DATA SHEET
Revision Y05-02Service Manual - DUO Series
2.2.5 DUO 12+12 RC Additional Refrigerant Charge Lable (as show on unit).
2.2.6 DUO 12+12 ST Additional Refrigerant Charge Lable (as show on unit).
CAPACITY AND ADDITIONAL CHARGE
FOR VARIOUS APPLICATIONS
UNIT 1 UNIT 2 UNIT 1 UNIT 2
ALPHA 12 ALPHA 9 WNG 12 WNG 9
AME 30 AME 20 NXE 30 NXE 20
INDOOR
COOLING
CAPACITY*
19815 Btu/h, 5810W 20230 Btu/h, 5930W
HEATING
CAPACITY*
21020 Btu/h, 6160W 20910 Btu/h, 6130W
Up to 7.5m
0 0 90 80
ADDITIONAL
CHARGE (gr)
7.5m-15m
100
* For two units operating simultaneously.
190
180
100
:$)
:$) )/2
)/2
$/3+$ $/3+$
$0( $0(
:1* :1*
1;(
1;(
%WXK:
%WXK:
%WXK:
%WXK:
&DW1R
D78D;97D3@FD3
CAPACITY AND ADDITIONAL CHARGE
FOR VARIOUS APPLICATIONS
UNIT 1 UNIT 2 UNIT 1 UNIT 2
ALPHA 12 ALPHA 9 WNG 12 WNG 9
AME 30 AME 20 NXE 30 NXE 20
INDOOR
COOLING
CAPACITY*
19815 Btu/h, 5810W 20230 Btu/h, 5930W
Up to 7.5m
0 0 90 80
ADDITIONAL
CHARGE (gr)
7.5m-15m
100
* For two units operating simultaneously.
REFRIGERANT R410A Cat.No.433946/01
190
100
180
:$)
:$)
)/2
)/2
$/3+$ $/3+$
$0( $0(
:1*
:1*
1;(
1;(
%WXK:
%WXK:
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D78D;97D3@FD3
Page 14
3-1
RATING CONDITIONS
Revision Y05-02Service Manual - DUO Series
3. RATING CONDITIONS
Standard conditions in accordance with ISO 5151, 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 32
o
C DB 23oC WB 46oC DB
Lower limit 21
o
C DB 15oC WB 21oC DB
Heating
Upper limit 27
o
C DB 24oC DB 18oC WB
Lower limit 20oC DB -9oC DB -10oC WB
Voltage
1PH 198 – 264 V
3PH 360 – 440 V
Page 15
4-1
OUTLINE DIMENSIONS
Revision Y05-02Service Manual - DUO Series
4. OUTLINE DIMENSIONS
4.1 Indoor Unit: Alpha 9
4.2
Indoor Unit: Alpha 12
Page 16
4-2
OUTLINE DIMENSIONS
Revision Y05-02 Service Manual - DUO Series
4.3 Indoor Unit: WNG 9, 12
4.2
Outdoor Unit: DUO OU7- (09+09), (09+12), (12+12)
143
83
Page 17
5-1
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02Service Manual - DUO Series
5. PERFORMANCE DATA
5.1 DUO ALPHA (9+9):Room A + Room B
5.1.1 Cooling Mode at 7.5m Tubing Connection.
230V : Indoor Fan at High Speed.
ENTERING AIR
DB OU COIL (°C)
DATA
ENTERING AIR WB/DB ID COIL ( °C)
15/21 17/24 19/27 21/29 23/32
15
(1)
TC
5.38 5.57 5.70 5.83 5.92
SC
3.65 3.81 3.96 4.06 4.13
PI
1.23 1.23 1.23 1.23 1.24
20
(1)
TC
5.20 5.48 5.65 5.79 5.91
SC
3.58 3.77 3.93 4.05 4.12
PI
1.33 1.34 1.34 1.35 1.35
25
TC
4.92 5.31 5.59 5.75 5.90
SC
3.49 3.70 3.90 4.02 4.09
PI
1.44 1.45 1.46 1.47 1.48
30
TC
4.60 5.01 5.41 5.61 5.77
SC
3.38 3.59 3.82 3.93 4.00
PI
1.55 1.58
1.59
1.60 1.62
35
TC
4.26 4.62
5.10
5.36 5.61
SC
3.21 3.44 3.73 3.84 3.91
PI
1.67 1.70
1.73
1.74 1.75
40
TC
3.87 4.22
4.60
5.03 5.29
SC
3.03 3.26 3.53 3.64 3.72
PI
1.81 1.83 1.87 1.89 1.91
46
TC
3.36 3.68 4.04 4.47 4.81
SC
2.79 2.99 3.22 3.33 3.40
PI
1.97 2.00 2.05 2.08 2.10
LEGEND
TC – Total Cooling Capacity, kW
SC – Sensible Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (
o
C)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OU – Outdoor
Page 18
5-2
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02 Service Manual - DUO Series
5.1.2 Heating Mode at 7.5m Tubing Connection.
230V : Indoor Fan at High Speed.
ENTERING AIR DB ID COIL ( °C)
15 20 25
ENTERING AIR
WB OU COIL ( °C)
TH PI TH PI TH PI
-10 2.69 1.39 2.59 1.48 2.48 1.56
-7 2.89 1.43 2.79 1.51 2.69 1.59
-2 3.07 1.44 2.97 1.53 2.87 1.62
2 3.74 1.51
3.58 1.61
3.43 1.71
6 5.27 1.63 5.12 1.74 4.94 1.85
10 5.73 1.72
5.58 1.84
5.43 1.96
15 6.20 1.79 6.04 1.93 5.89 2.05
20 6.53 1.84 6.37 2.00 6.20 2.16
* the above chart includes the weighted deicing infleuence.
LEGEND
TH – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (oC)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OU – Outdoor
Page 19
5-3
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02Service Manual - DUO Series
5.2 Pressure Curves.
5.2.1 ALPHA 9
5.2.2 Cooling.
Suction Pressure VS.Outdoor Temp
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
10.5
11.0
11.5
12.0
15 20 25 30 35 40 46
Outdoor Temp.(DB oC )
Suction Pressure (Bar[g])
21/15(DB/WB ºC)
24/17(DB/WB ºC)
27/19(DB/WB ºC)
29/21(DB/WB ºC)
32/23(DB/WB ºC)
Discharge Pressure VS.Outdoor Temp
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
15 20 25 30 35 40 46
Outdoor Temp.(DB oC )
Discharge Pressure (Bar[g])
21/15(DB/W B ºC)
24/17(DB/WB ºC)
27/19(DB/WB ºC)
29/21(DB/WB ºC)
32/23(DB/WB ºC)
Page 20
5-4
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02 Service Manual - DUO Series
5.2.3 Heating.
Suction Pressure VS.Outdoor Temp
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
-10 -5 0 5 10 15 20
Outdoor Temp.( WB oC )
Suction Pressure(Bar[g])
15 DB (ºC)
20 DB (ºC)
25 DB (ºC)
Discharge Pressure VS.Outdoor Temp
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
-10 -5 0 5 10 15 20
Outdoor Temp.( WB oC )
Discharge Pressure(Bar[g])
25 DB (ºC)
20 DB (ºC)
15 DB (ºC)
Page 21
5-5
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02Service Manual - DUO Series
5.3 DUO ALPHA (9+12):Room A + Room B
5.3.1 Cooling Mode at 7.5m Tubing Connection.
230V : Indoor Fan at High Speed.
ENTERING AIR
DB OU COIL (°C)
DATA
ENTERING AIR WB/DB ID COIL ( °C)
15/21 17/24 19/27 21/29 23/32
15
(1)
TC
6.12 6.34 6.49 6.65 6.75
SC
4.10 4.28 4.45 4.56 4.64
PI
1.46 1.46 1.47 1.47 1.48
20
(1)
TC
5.92 6.24 6.44 6.59 6.74
SC
4.02 4.24 4.42 4.54 4.63
PI
1.59 1.59 1.60 1.60 1.61
25
TC
5.61 6.05 6.36 6.56 6.72
SC
3.92 4.16 4.39 4.51 4.59
PI
1.71 1.73 1.74 1.75 1.76
30
TC
5.24 5.71 6.17 6.39 6.58
SC
3.80 4.03 4.29 4.41 4.50
PI
1.85 1.88
1.89
1.91 1.92
35
TC
4.85 5.27
5.81
6.10 6.39
SC
3.61 3.87 4.19 4.31 4.40
PI
1.99 2.03
2.06
2.08 2.09
40
TC
4.41 4.81
5.24
5.73 6.03
SC
3.40 3.66 3.96 4.09 4.17
PI
2.15 2.18 2.22 2.25 2.27
46
TC
3.83 4.19 4.60 5.09 5.48
SC
3.13 3.36 3.61 3.74 3.82
PI
2.35 2.38 2.44 2.47 2.50
LEGEND
TC – Total Cooling Capacity, kW
SC – Sensible Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (
o
C)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OU – Outdoor
Page 22
5-6
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02 Service Manual - DUO Series
5.3.2 Heating Mode at 7.5m Tubing Connection.
230V : Indoor Fan at High Speed.
ENTERING AIR DB ID COIL ( °C)
15 20 25
ENTERING AIR
WB OU COIL ( °C)
TH PI TH PI TH PI
-10 3.56 1.67 3.42 1.78 3.29 1.87
-7 3.83 1.71 3.69 1.81 3.56 1.91
-2 4.07 1.73 3.93 1.84 3.79 1.94
2 4.95 1.82
4.74 1.93
4.54 2.05
6 6.34 1.95 6.16 2.09 5.94 2.22
10 6.90 2.06
6.71 2.20
6.53 2.36
15 7.45 2.15 7.27 2.32 7.08 2.47
20 7.85 2.22 7.67 2.40 7.45 2.59
* the above chart includes the weighted deicing infleuence.
LEGEND
TH – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (oC)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OU – Outdoor
Page 23
5-7
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02Service Manual - DUO Series
5.4 Pressure Curves.
5.4.1 ALPHA 9
5.4.2 Cooling.
Suction Pressure VS.Outdoor Temp
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
15 20 25 30 35 40 46
Outdoor Temp.(DB oC )
Suction Pressure (Bar[g])
21/15(DB/WB ºC)
24/17(DB/WB ºC)
27/19(DB/WB ºC)
29/21(DB/WB ºC)
32/23(DB/WB ºC)
Discharge Pressure VS.Outdoor Temp
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
15 20 25 30 35 40 46
Outdoor Temp.(DB oC )
Discharge Pressure (Bar[g])
21/15(DB/WB ºC)
24/17(DB/WB ºC)
27/19(DB/WB ºC)
29/21(DB/WB ºC)
32/23(DB/WB ºC)
Page 24
5-8
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02 Service Manual - DUO Series
5.4.3 Heating.
Suction Pressure VS.Outdoor Temp
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
-10 -5 0 5 10 15 20
Outdoor Temp.( WB oC )
Suction Pressure(Bar[g])
15 DB (ºC)
20 DB (ºC)
25 DB (ºC)
Discharge Pressure VS.Outdoor Temp
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
-10 -5 0 5 10 15 20
Outdoor Temp.( WB oC )
Discharge Pressure(Bar[g])
25 DB (ºC)
20 DB (ºC)
15 DB (ºC)
Page 25
5-9
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02Service Manual - DUO Series
5.4.4 ALPHA 12
5.4.5 Cooling.
Suction Pressure VS.Outdoor Temp
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
15 20 25 30 35 40 46
Outdoor Temp.(DB oC )
Suction Pressure (Bar[g])
21/15(DB/WB ºC)
24/17(DB/WB ºC)
27/19(DB/WB ºC)
29/21(DB/WB ºC)
32/23(DB/WB ºC)
Discharge Pressure VS.Outdoor Temp
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
15 20 25 30 35 40 46
Outdoor Temp.(DB oC )
Discharge Pressure (Bar[g])
21/15(DB/WB ºC)
24/17(DB/WB ºC)
27/19(DB/WB ºC)
29/21(DB/WB ºC)
32/23(DB/WB ºC)
Page 26
5-10
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02 Service Manual - DUO Series
5.4.6 Heating.
Suction Pressure VS.Outdoor Temp
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
-10 -5 0 5 10 15 20
Outdoor Temp.( WB oC )
Suction Pressure(Bar[g])
15 DB (ºC)
20 DB (ºC)
25 DB (ºC)
Discharge Pressure VS.Outdoor Temp
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
-10 -5 0 5 10 15 20
Outdoor Temp.( WB oC )
Discharge Pressure(Bar[g])
25 DB (ºC)
20 DB (ºC)
15 DB (ºC)
Page 27
5-11
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02Service Manual - DUO Series
5.5 DUO ALPHA (12+12):Room A + Room B
5.5.1 Cooling Mode at 7.5m Tubing Connection.
230V : Indoor Fan at High Speed.
ENTERING AIR
DB OU COIL (°C)
DATA
ENTERING AIR WB/DB ID COIL ( °C)
15/21 17/24 19/27 21/29 23/32
15
(1)
TC
7.38 7.64 7.82 8.01 8.13
SC
4.08 4.25 4.42 4.53 4.61
PI
1.77 1.78 1.78 1.78 1.79
20
(1)
TC
7.14 7.52 7.76 7.94 8.12
SC
4.00 4.22 4.39 4.52 4.60
PI
1.92 1.93 1.94 1.95 1.95
25
TC
6.75 7.29 7.67 7.90 8.09
SC
3.90 4.13 4.36 4.49 4.57
PI
2.08 2.09 2.11 2.12 2.14
30
TC
6.32 6.88 7.43 7.69 7.92
SC
3.77 4.01 4.26 4.39 4.47
PI
2.24 2.28
2.30
2.31 2.34
35
TC
5.85 6.35
7.00
7.35 7.70
SC
3.59 3.85 4.17 4.29 4.37
PI
2.42 2.46
2.50
2.52 2.53
40
TC
5.32 5.79
6.32
6.91 7.26
SC
3.38 3.64 3.94 4.07 4.15
PI
2.61 2.65 2.70 2.73 2.76
46
TC
4.61 5.04 5.55 6.13 6.60
SC
3.12 3.34 3.59 3.72 3.80
PI
2.85 2.89 2.96 3.00 3.04
LEGEND
TC – Total Cooling Capacity, kW
SC – Sensible Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (
o
C)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OU – Outdoor
Page 28
5-12
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02 Service Manual - DUO Series
5.5.2 Heating Mode at 7.5m Tubing Connection.
230V : Indoor Fan at High Speed.
ENTERING AIR DB ID COIL ( °C)
15 20 25
ENTERING AIR
WB OU COIL ( °C)
TH PI TH PI TH PI
-10 3.85 2.00 3.70 2.13 3.56 2.24
-7 4.14 2.05 3.99 2.16 3.85 2.28
-2 4.40 2.08 4.25 2.20 4.10 2.33
2 5.35 2.18
5.13 2.31
4.91 2.45
6 7.55 2.34 7.33 2.50 7.07 2.66
10 8.21 2.47
7.99 2.64
7.77 2.82
15 8.87 2.58 8.65 2.78 8.43 2.95
20 9.35 2.65 9.13 2.88 8.87 3.10
* the above chart includes the weighted deicing infleuence.
LEGEND
TH – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (oC)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OU – Outdoor
Page 29
5-13
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02Service Manual - DUO Series
5.6 Pressure Curves.
5.6.1 ALPHA 12
5.6.2 Cooling.
Suction Pressure VS.Outdoor Temp
5.0
6.0
7.0
8.0
9.0
10.0
11.0
15 20 25 30 35 40 46
Outdoor Temp.(DB oC )
Suction Pressure (Bar[g])
15/21(WB/DB ºC)
17/24(WB/DB ºC)
19/27(WB/DB ºC)
21/29(WB/DB ºC)
23/32(WB/DB ºC)
Discharge Pressure VS.Outdoor Temp
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
15 20 25 30 35 40 46
Outdoor Temp.(DB oC )
Discharge Pressure (Bar[g])
15/21(WB/DB ºC)
17/24(WB/DB ºC)
19/27(WB/DB ºC)
21/29(WB/DB ºC)
23/32(WB/DB ºC)
Page 30
5-14
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02 Service Manual - DUO Series
5.6.3 Heating.
Suction Pressure VS.Outdoor Temp
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
-10 -5 0 5 10 15 20
Outdoor Temp.( WB oC )
Suction Pressure(Bar[g])
15 DB (ºC)
20 DB (ºC)
25 DB (ºC)
Discharge Pressure VS.Outdoor Temp
16
18
20
22
24
26
28
30
32
34
36
38
40
-10 -5 0 5 10 15 20
Outdoor Temp.( WB oC )
Discharge Pressure(Bar[g])
25 DB (ºC)
20 DB (ºC)
15 DB (ºC)
Page 31
5-15
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02Service Manual - DUO Series
5.7 DUO WNG (9+9):Room A + Room B
5.7.1 Cooling Mode at 7.5m Tubing Connection.
230V : Indoor Fan at High Speed.
ENTERING AIR
DB OU COIL (°C)
DATA
ENTERING AIR WB/DB ID COIL ( °C)
15/21 17/24 19/27 21/29 23/32
15
(1)
TC
6.03 6.24 6.39 6.54 6.64
SC
4.18 4.36 4.53 4.64 4.73
PI
1.26 1.26 1.27 1.27 1.28
20
(1)
TC
5.83 6.15 6.34 6.49 6.63
SC
4.10 4.32 4.50 4.63 4.72
PI
1.37 1.37 1.38 1.39 1.39
25
TC
5.52 5.96 6.27 6.45 6.61
SC
3.99 4.24 4.47 4.60 4.68
PI
1.48 1.49 1.50 1.51 1.52
30
TC
5.16 5.62 6.07 6.29 6.47
SC
3.87 4.11 4.37 4.50 4.58
PI
1.60 1.62
1.63
1.65 1.66
35
TC
4.78 5.19
5.72
6.01 6.29
SC
3.68 3.94 4.27 4.39 4.48
PI
1.72 1.75
1.78
1.79 1.80
40
TC
4.35 4.73
5.16
5.64 5.93
SC
3.47 3.73 4.04 4.17 4.25
PI
1.86 1.89 1.92 1.94 1.96
46
TC
3.77 4.12 4.53 5.01 5.40
SC
3.19 3.42 3.68 3.81 3.90
PI
2.03 2.06 2.11 2.14 2.16
LEGEND
TC – Total Cooling Capacity, kW
SC – Sensible Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (
o
C)
DB – Dry Bulb Temp., (
o
C)
ID – Indoor
OU – Outdoor
Page 32
5-16
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02 Service Manual - DUO Series
5.7.2 Heating Mode at 7.5m Tubing Connection.
230V : Indoor Fan at High Speed.
ENTERING AIR DB ID COIL ( °C)
15 20 25
ENTERING AIR
WB OU COIL ( °C)
TH PI TH PI TH PI
-10 2.82 1.34 2.71 1.42 2.60 1.49
-7 3.03 1.37 2.93 1.44 2.82 1.52
-2 3.22 1.39 3.11 1.47 3.01 1.55
2 3.92 1.45
3.76 1.54
3.60 1.64
6 5.53 1.56 5.37 1.67 5.18 1.77
10 6.01 1.65
5.85 1.76
5.69 1.88
15 6.50 1.72 6.34 1.85 6.18 1.97
20 6.85 1.77 6.69 1.92 6.50 2.07
* the above chart includes the weighted deicing infleuence.
LEGEND
TH – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (oC)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OU – Outdoor
Page 33
5-17
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02Service Manual - DUO Series
5.8 Pressure Curves.
5.8.1 WNG 9
5.8.2 Cooling.
Suction Pressure VS.Outdoor Temp
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
15 20 25 30 35 40 46
Outdoor Temp.(DB oC )
Suction Pressure (Bar[g])
21/15(DB/WB ºC)
24/17(DB/WB ºC)
27/19(DB/WB ºC)
29/21(DB/WB ºC)
32/23(DB/WB ºC)
Discharge Pressure VS.Outdoor Temp
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
15 20 25 30 35 40 46
Outdoor Temp.(DB oC )
Discharge Pressure (Bar[g])
21/15(DB/WB ºC)
24/17(DB/WB ºC)
27/19(DB/WB ºC)
29/21(DB/WB ºC)
32/23(DB/WB ºC)
Page 34
5-18
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02 Service Manual - DUO Series
5.8.3 Heating.
Suction Pressure VS.Outdoor Temp
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
-10 -5 0 5 10 15 20
Outdoor Temp.( WB oC )
Suction Pressure(Bar[g])
15 DB (ºC)
20 DB (ºC)
25 DB (ºC)
Discharge Pressure VS.Outdoor Temp
10
12
14
16
18
20
22
24
26
28
30
32
34
-10 -5 0 5 10 15 20
Outdoor Temp.( WB oC )
Discharge Pressure(Bar[g])
25 DB (ºC)
20 DB (ºC)
15 DB (ºC)
Page 35
5-19
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02Service Manual - DUO Series
5.9 DUO WNG (9+12): Room A + Room B
5.9.1 Cooling Mode at 7.5m Tubing Connection.
230V : Indoor Fan at High Speed.
ENTERING AIR
DB OU COIL (°C)
DATA
ENTERING AIR WB/DB ID COIL ( °C)
15/21 17/24 19/27 21/29 23/32
15
(1)
TC
6.25 6.47 6.63 6.78 6.89
SC
4.58 4.78 4.97 5.09 5.18
PI
1.47 1.47 1.47 1.48 1.48
20
(1)
TC
6.05 6.37 6.58 6.73 6.88
SC
4.49 4.74 4.94 5.08 5.17
PI
1.59 1.60 1.60 1.61 1.62
25
TC
5.72 6.18 6.50 6.69 6.85
SC
4.38 4.64 4.90 5.04 5.13
PI
1.72 1.73 1.75 1.76 1.77
30
TC
5.35 5.83 6.29 6.52 6.71
SC
4.24 4.51 4.79 4.93 5.02
PI
1.86 1.88
1.90
1.92 1.93
35
TC
4.95 5.38
5.93
6.23 6.52
SC
4.03 4.32 4.68 4.82 4.91
PI
2.00 2.04
2.07
2.09 2.10
40
TC
4.50 4.90
5.35
5.85 6.15
SC
3.80 4.09 4.43 4.57 4.66
PI
2.16 2.19 2.23 2.26 2.28
46
TC
3.91 4.27 4.70 5.19 5.59
SC
3.50 3.75 4.04 4.18 4.27
PI
2.36 2.40 2.45 2.49 2.51
LEGEND
TC – Total Cooling Capacity, kW
SC – Sensible Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (
o
C)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OU – Outdoor
Page 36
5-20
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02 Service Manual - DUO Series
5.9.2 Heating Mode at 7.5m Tubing Connection.
230V : Indoor Fan at High Speed.
ENTERING AIR DB ID COIL ( °C)
15 20 25
ENTERING AIR
WB OU COIL ( °C)
TH PI TH PI TH PI
-10 3.54 1.58 3.41 1.68 3.27 1.76
-7 3.81 1.62 3.67 1.70 3.54 1.80
-2 4.05 1.64 3.91 1.73 3.78 1.83
2 4.92 1.71
4.72 1.82
4.52 1.93
6 6.31 1.84 6.13 1.97 5.92 2.09
10 6.87 1.94
6.68 2.08
6.50 2.22
15 7.42 2.03 7.23 2.19 7.05 2.32
20 7.82 2.09 7.63 2.27 7.42 2.44
* the above chart includes the weighted deicing infleuence.
LEGEND
TH – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (oC)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OU – Outdoor
Page 37
5-21
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02Service Manual - DUO Series
5.10 Pressure Curves.
5.10.1 WNG 9
5.10.2 Cooling.
Suction Pressure VS.Outdoor Temp
6.0
7.0
8.0
9.0
10.0
11.0
12.0
15 20 25 30 35 40 46
Outdoor Temp.(DB oC )
Suction Pressure (Bar[g])
21/15(DB/WB ºC)
24/17(DB/WB ºC)
27/19(DB/WB ºC)
29/21(DB/WB ºC)
32/23(DB/WB ºC)
Discharge Pressure VS.Outdoor Temp
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
15 20 25 30 35 40 46
Outdoor Temp.(DB oC )
Discharge Pressure (Bar[g])
21/15(DB/WB ºC)
24/17(DB/WB ºC)
27/19(DB/WB ºC)
29/21(DB/WB ºC)
32/23(DB/WB ºC)
Page 38
5-22
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02 Service Manual - DUO Series
5.10.3 Heating.
Suction Pressure VS.Outdoor Temp
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
-10 -5 0 5 10 15 20
Outdoor Temp.( WB oC )
Suction Pressure(Bar[g])
15 DB (ºC)
20 DB (ºC)
25 DB (ºC)
Discharge Pressure VS.Outdoor Temp
10
12
14
16
18
20
22
24
26
28
30
32
-10 -5 0 5 10 15 20
Outdoor Temp.( WB oC )
Discharge Pressure(Bar[g])
25 DB (ºC)
20 DB (ºC)
15 DB (ºC)
Page 39
5-23
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02Service Manual - DUO Series
5.10.4 WNG 12
5.10.5 Cooling.
Suction Pressure VS.Outdoor Temp
5.0
6.0
7.0
8.0
9.0
10.0
11.0
15 20 25 30 35 40 46
Outdoor Temp.(DB oC )
Suction Pressure (Bar[g])
21/15(DB/WB ºC)
24/17(DB/WB ºC)
27/19(DB/WB ºC)
29/21(DB/WB ºC)
32/23(DB/WB ºC)
Discharge Pressure VS.Outdoor Temp
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
15 20 25 30 35 40 46
Outdoor Temp.(DB oC )
Discharge Pressure (Bar[g])
21/15(DB/WB ºC)
24/17(DB/WB ºC)
27/19(DB/WB ºC)
29/21(DB/WB ºC)
32/23(DB/WB ºC)
Page 40
5-24
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02 Service Manual - DUO Series
5.10.6 Heating.
Suction Pressure VS.Outdoor Temp
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
-10 -5 0 5 10 15 20
Outdoor Temp.( WB oC )
Suction Pressure(Bar[g])
15 DB (ºC)
20 DB (ºC)
25 DB (ºC)
Discharge Pressure VS.Outdoor Temp
10
12
14
16
18
20
22
24
26
28
30
32
34
36
-10 -5 0 5 10 15 20
Outdoor Temp.( WB oC )
Discharge Pressure(Bar[g])
25 DB (ºC)
20 DB (ºC)
15 DB (ºC)
Page 41
5-25
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02Service Manual - DUO Series
5.11 DUO WNG (12+12): Room A + Room B
5.11.1 Cooling Mode at 7.5m Tubing Connection.
230V : Indoor Fan at High Speed.
ENTERING AIR
DB OU COIL (°C)
DATA
ENTERING AIR WB/DB ID COIL ( °C)
15/21 17/24 19/27 21/29 23/32
15
(1)
TC
7.38 7.64 7.82 8.01 8.13
SC
4.06 4.24 4.40 4.51 4.59
PI
1.77 1.78 1.78 1.78 1.79
20
(1)
TC
7.14 7.52 7.76 7.94 8.12
SC
3.98 4.20 4.37 4.50 4.58
PI
1.92 1.93 1.94 1.95 1.95
25
TC
6.75 7.29 7.67 7.90 8.09
SC
3.88 4.12 4.34 4.47 4.55
PI
2.08 2.09 2.11 2.12 2.14
30
TC
6.32 6.88 7.43 7.69 7.92
SC
3.76 3.99 4.25 4.37 4.45
PI
2.24 2.28
2.30
2.31 2.34
35
TC
5.85 6.35
7.00
7.35 7.70
SC
3.57 3.83 4.15 4.27 4.35
PI
2.42 2.46
2.50
2.52 2.53
40
TC
5.32 5.79
6.32
6.91 7.26
SC
3.37 3.62 3.92 4.05 4.13
PI
2.61 2.65 2.70 2.73 2.76
46
TC
4.61 5.04 5.55 6.13 6.60
SC
3.10 3.32 3.58 3.70 3.79
PI
2.85 2.89 2.96 3.00 3.04
LEGEND
TC – Total Cooling Capacity, kW
SC – Sensible Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (
o
C)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OU – Outdoor
Page 42
5-26
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02 Service Manual - DUO Series
5.11.2 Heating Mode at 7.5m Tubing Connection.
230V : Indoor Fan at High Speed.
ENTERING AIR DB ID COIL ( °C)
15 20 25
ENTERING AIR
WB OU COIL ( °C)
TH PI TH PI TH PI
-10 3.85 1.84 3.70 1.96 3.56 2.06
-7 4.14 1.89 3.99 1.99 3.85 2.10
-2 4.40 1.91 4.25 2.02 4.10 2.14
2 5.35 2.00
5.13 2.13
4.91 2.25
6 7.55 2.15 7.33 2.30 7.07 2.44
10 8.21 2.27
7.99 2.43
7.77 2.59
15 8.87 2.37 8.65 2.55 8.43 2.71
20 9.35 2.44 9.13 2.65 8.87 2.85
* the above chart includes the weighted deicing infleuence.
LEGEND
TH – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (oC)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OU – Outdoor
Page 43
5-27
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02Service Manual - DUO Series
5.12 Pressure Curves.
5.12.1 WNG 12
5.12.2 Cooling.
Suction Pressure VS.Outdoor Temp
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
15 20 25 30 35 40 46
Outdoor Temp.(DB oC )
Suction Pressure (Bar[g])
15/21(WB/DB ºC)
17/24(WB/DB ºC)
19/27(WB/DB ºC)
21/29(WB/DB ºC)
23/32(WB/DB ºC)
Discharge Pressure VS.Outdoor Temp
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
15 20 25 30 35 40 46
Outdoor Temp.(DB oC )
Discharge Pressure (Bar[g])
15/21(WB/DB ºC)
17/24(WB/DB ºC)
19/27(WB/DB ºC)
21/29(WB/DB ºC)
23/32(WB/DB ºC)
Page 44
5-28
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02 Service Manual - DUO Series
5.12.3 Heating.
Suction Pressure VS.Outdoor Temp
3.0
4.0
5.0
6.0
7.0
8.0
9.0
-10 -5 0 5 10 15 20
Outdoor Temp.( WB oC )
Suction Pressure(Bar[g])
15 DB (ºC)
20 DB (ºC)
25 DB (ºC)
Discharge Pressure VS.Outdoor Temp
16
18
20
22
24
26
28
30
32
34
36
-10 -5 0 5 10 15 20
Outdoor Temp.( WB oC )
Discharge Pressure(Bar[g])
25 DB (ºC)
20 DB (ºC)
15 DB (ºC)
Page 45
5-29
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02Service Manual - DUO Series
5.13 Capacity Correction Factor Due to Tubing Length
5.13.1 DUO (9+9),(9+12)
5.13.2 Cooling
TOTAL TUBING LENGTH
3m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.02
1
0.99 0.96 --- --- --- --- ---
* Minimum recommended tubing length between indoor and outdoor units is 3m.
5.13.3 Heating
TOTAL TUBING LENGTH
3m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.02
1
0.92 0.85 --- --- --- --- ---
* Minimum recommended tubing length between indoor and outdoor units is 3m.
Page 46
6-1
SOUND LEVEL CHARACTERISTICS
Revision Y05-01Service Manual - DUO Series
6. SOUND LEVEL CHARACTERISTICS
6.1 Outdoor Units
6.2 Sound Pressure Level Spectrum
(Measured as Figure 1)
OU7- 0909, 0912, 1212 RC/ST Cooling OU7-0909, 0912, 1212 RC/ST Heating
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR
Microphone Distance from Unit
Fig.1
Page 47
7-1
ELECTRICAL DATA
Revision Y05-02Service Manual - DUO Series
7. ELECTRICAL DATA
7.1 DUO (9+9)
Power Supply 1 PH, 220-240 VAC, 50Hz
Connected to Outdoor
Starting Current - 9+9 18.7/18.7 A
Circuit breaker 16 A
Power supply wiring - No. x cross section 3 X 2.5 mm
2
Interconnecting cable - No. x cross section 6 X 1.5 mm
2
7.2 DUO (9+12)
Power Supply 1 PH, 220-240 VAC, 50Hz
Connected to Outdoor
Starting Current - 9+12 18.7/24.0 A
Circuit breaker 16 A
Power supply wiring - No. x cross section 3 X 2.5 mm
2
Interconnecting cable - No. x cross section 6 X 1.5 mm
2
7.3 DUO (12+12)
Power Supply 1 PH, 220-240 VAC, 50Hz
Connected to Outdoor
Starting Current - 12+12 24/24 A
Circuit breaker 16 A
Power supply wiring - No. x cross section 3 X 2.5 mm
2
Interconnecting cable - No. x cross section 6 X 1.5 mm
2
NOTE
Power wiring cord should comply with local laws and electrical
regulations requirements.
Page 48
8-1
WIRING DIAGRAMS
Revision Y05-02Service Manual - DUO Series
8. WIRING DIAGRAMS
8.1 DUO (9+9), (9+12)
8.2 DUO (12+12)
Page 49
9-1
ELECTRICAL CONNECTIONS
Revision Y05-02Service Manual - DUO Series
9. ELECTRICAL CONNECTIONS
9.1 DUO (9+9), (9+12), (12+12)
Page 50
10-1
REFRIGERATION DIAGRAMS
Revision Y05-02Service Manual - DUO Series
10. REFRIGERATION DIAGRAMS
10.1 DUO (9+9), (9+12), (12+12)
10.1.1 Cooling Mode
10.1.2 Heating Mode
10.1.3 Cooling Only
Page 51
11-1
TUBING CONNECTIONS
Revision Y05-02Service Manual - DUO Series
11. TUBING CONNECTIONS
TUBE (Inch)
TORQUE (Nm)
¼” ⅜” ½” ⅝” ¾”
Flare Nuts 11-13 40-45 60-65 70-75 80-85
Valve Cap 13-20 13-20 18-25 18-25 40-50
Service Port Cap 11-13 11-13 11-13 11-13 11-13
1. Valve Protection Cap-end
2. Refrigerant Valve Port (use Allen wrench to open/close)
3. Valve Protection Cap
4. Refrigerant Valve
5. Service Port Cap
6. Flare Nut
7. Unit Back Side
8. Copper Tube
When the outdoor unit is installed above the indoor unit an oil trap is required every 5m along the suction
line at the lowest point of the riser. Incase the indoor unit is installed above the outdoor, no trap is
required.
Page 52
12-1
CONTROL SYSTEM
Revision Y05-02
Service Manual - DUO Series
12. CONTROL SYSTEM
12.1 General
The control and logic system is managed by the indoor PCB controller with regards to all functions
and protections excluding Deicing. The DUO OU7 R410A is equipped with stand -alone internal
deicer integrated on the outdoor PCB (TYPHOON - 4A 6.3).
12.1.1 Deicing operation:
The outdoor coil temp ‘ is detected by 2 OCT sensors (outdoor coil temp’) the deicing procedure
will be activated if one of the sensors is sensing a temp’ ≤ -6ºC, and will stop when the outdoor coil
will reach to12ºC or max 10 Min. once the deicing protection is activated it will include both units at
the same time. Method of defrosting is by reversing the heat pump cycle to cooling mode, stopping
the outdoor fan and keeping the comp’ running, the unit will resume to its normal operation after
the deicing procedure will be deactivated. Min. deicing time is 2.5 Min.
12.1.2 Deicing interval:
At first start up deicing will not be activated for the first 45 Min., and will go to STBY mode after
every defrosting this timer will start a new cycle.
12.1.3 Discharge Pressure Protection – (Heating Mode)
The PCB is equipped with two additional sensors for each refrigerant circuit, measuring the
refrigerant hot gas Temp’ in heating mode.
In case of a high discharge Temp’ in one of the sensors will be detected. The PCB will set the
outdoor fan to ON and OFF intervals, in order to reduce the suction pressure
And as a result, the hot gas temp’ as well.
OFAN ON - 70 ºC
OFAN OFF - 75 ºC
12.1.4 TYPHOON - 4A 6.3
NOTE :
For further information please refer to the relevant indoor unit service manual.
Page 53
13-1
TROUBLESHOOTING
Revision Y05-02Service Manual - DUO Series
13. TROUBLESHOOTING
Page 54
13-2
TROUBLESHOOTING
Revision Y05-02 Service Manual - DUO Series
Page 55
14-1
EXPLODED VIEWS AND SPARE PARTS LISTS
Revision Y05-02Service Manual - DUO Series
14. EXPLODED VIEWS AND SPARE PARTS LISTS
14.1 Outdoor Unit: OU7 (9+9), (9+12), (12+12) RC
Page 56
14-2
EXPLODED VIEWS AND SPARE PARTS LISTS
Revision Y05-02 Service Manual - DUO Series
14.2 Outdoor Unit: OU7- 0909 RC
Item Code Item Description Quantity
Drawing
Number
437045 UPPER COVER EL13 OU LARGE 1 1
433280 SIDE PANEL OU7-24 R410A 1 2
436357 SMALL ELECTRICAL COVER OU 1 3
439329 FRONT COVER/CO' OU7-35/90 EL13 1 4
437091 OU SQUARE FAN GUARD 1 5
439163 BASE ASSY OU DUO 1 6
433883 COIL OU7-99 GR/HDR R410A 1 7
4529604 AXIAL FAN D493*143 1 8
434062 MOTOR 86W,2S,OU7-24 1 9
433281 SIDE GUARD OU7-24 R410 1 10
436358 OU LEADING HANDLE 1 11
439342 MOTOR SUPPORT OU7 1 12
431112 COMPRESSOR GK113PAL 2 14U2
433888 CAPILLARY ASSY OU7-9*9/12 RC 1 15U1
433889 CAPILLARY ASSY UNIT1 OU7-99 RC 1 15U2
433886 TUBING ASSY UNIT 1OU7-99 RC R4 1 16U1
433885 TUBING ASSY UNIT 2 OU7-9*9/12 1 16U2
402566 BOARD TPHN 4A6.2 1 17
442007 CAPACITOR 6mF 400V P1/P2 1 18
434716 THERMISTOR+CAP WTH CONNECTOR L 2 19
442012 CAPACITOR 30mF 400V P1/P2 2 20
435968 COMPRESSOR WIRING OU DUO 2 21
437229 ELECTRICAL BOX TPHN 1 24
442466 VALVE COIL L700 MOLEX-SANHUA 2 33
Page 57
14-3
EXPLODED VIEWS AND SPARE PARTS LISTS
Revision Y05-02Service Manual - DUO Series
14.3 Outdoor Unit: OU7- 0912 RC
Item Code Item Description Quantity
Drawing
Number
437045 UPPER COVER EL13 OU LARGE 1 1
433280 SIDE PANEL OU7-24 R410A 1 2
436357 SMALL ELECTRICAL COVER OU 1 3
439329 FRONT COVER/CO' OU7-35/90 EL13 1 4
437091 OU SQUARE FAN GUARD 1 5
439163 BASE ASSY OU DUO 1 6
433884 COIL OU7-912 GR/HDR R410A 1 7
4529604 AXIAL FAN D493*143 1 8
434062 MOTOR 86W,2S,OU7-24 1 9
433281 SIDE GUARD OU7-24 R410 1 10
436358 OU LEADING HANDLE 1 11
439342 MOTOR SUPPORT OU7 1 12
431111 COMPRESSOR GK151PAG 1 14U1
431112R COPMPRESSOR GK113 1 14U2
433888 CAPILLARY ASSY OU7-9*9/12 RC 1 15U1
433890 CAPILLARY ASSY UNIT1 OU7-912 1 15U1
433886 TUBING ASSY UNIT 1OU7-99 RC R4 1 16U1
433885 TUBING ASSY UNIT 2 OU7-9*9/12 1 16U2
402566 BOARD TPHN 4A6.2 1 17
442007 CAPACITOR 6mF 400V P1/P2 1 18
434716 THERMISTOR+CAP WTH CONNECTOR L 2 19
442012 CAPACITOR 30mF 400V P1/P2 1 20
442013 CAPACITOR 35mF 400V P1/P2 1 20
435968 COMPRESSOR WIRING OU DUO 2 21
437229 ELECTRICAL BOX TPHN 1 24
442466 VALVE COIL L700 MOLEX-SANHUA 2 33
Page 58
14-4
EXPLODED VIEWS AND SPARE PARTS LISTS
Revision Y05-02 Service Manual - DUO Series
14.4 Outdoor Unit: OU7-1212 RC
Item Code Description Quantity
Drawing
Number
402566 UPPER COVER EL13 OU LARGE 1 1
431111 SIDE PANEL OU7-24 R410A 1 2
433280 SMALL ELECTRICAL COVER OU 1 3
433281 FRONT COVER/CO' OU7-35/90 EL13 1 4
433752 OU SQUARE FAN GUARD 1 5
433885 NEW BASE ASSY OU DUO 2005 EXPO 1 6
433886 COIL OU7-12*12 GR/HDR R410A 1 7
433985 AXIAL FAN D493*143 1 8
433988 MOTOR 70W,2S,OU7 1 9
433989 SIDE GUARD OU7-24 R410 1 10
434211 OU LEADING HANDLE 1 11
434716 MOTOR SUPPORT OU7 1 12
434717 BOARD TPHN 4A6.2 1 17
436357 CAPACITOR 6mF 400V P1/P2 1 18
436358 THERMISTOR+CAP WHT CONNECTOR L 1 19
437045 THERMISTOR WTH CAP L750 1 19
437091 CAPACITOR 35mF 400V P1/P2 2 20
437229 COMPRESSOR WIRING OU10-1PH MIT 2 21
437279 ELECTRICAL BOX TPHN 1 24
438079 VALVE COIL L700 MOLEX-SANHUA 2 33
439329 COMPRESSOR GK151PAG 2 14U1
439342 CAPILLARY ASSY UNIT1 OU7-1212 1 15U1
442007 CAPILLARY ASSY UNIT2 OU7-1212 1 15U2
442013 TUBING ASSY UNIT1 OU7-99 RC R4 1 16U1
442466 TUBING ASSY UNIT 2 OU7-9*9/12 1 16U2
4529604 THERMISTOR+CAP WTH CONNECTOR L 1 19a
Page 59
14-5
EXPLODED VIEWS AND SPARE PARTS LISTS
Revision Y05-02Service Manual - DUO Series
14.5 Outdoor Unit: OU7(9+9), (9+12), (12+12) ST
Page 60
14-6
EXPLODED VIEWS AND SPARE PARTS LISTS
Revision Y05-02 Service Manual - DUO Series
14.6 Outdoor Unit: OU7- 0909 ST
Item Code Item Description Quantity
Drawing
Number
437045 UPPER COVER EL13 OU LARGE 1 1
433280 SIDE PANEL OU7-24 R410A 1 2
436357 SMALL ELECTRICAL COVER OU 1 3
439329 FRONT COVER/CO' OU7-35/90 EL 1 4
437091 OU SQUARE FAN GUARD 1 5
439163 BASE ASSY OU DUO 1 6
433838 COIL OU7-99 ST GR R410A 1 7
4529604 AXIAL FAN D493*143 1 8
434062 MOTOR 86W,2S,OU7-24 1 9
433281 SIDE GUARD OU7-24 R410 1 10
436358 OU LEADING HANDLE 1 11
439342 MOTOR SUPPORT OU7 1 12
431112 COMPRESSOR GK113PAL 2 14U2
433940 CAPILLARY ASSY UNIT1 OU7-99 1 15U1
433941 CAPILLARY ASSY UNIT 2 OU7-9 1 15U2
402566 BOARD TPHN 4A6.2 1 17
442007 CAPACITOR 6mF 400V P1/P2 1 18
442012 CAPACITOR 30mF 400V P1/P2 2 20
435968 COMPRESSOR WIRING OU DUO 2 21
437229 ELECTRICAL BOX TPHN 1 24
Page 61
14-7
EXPLODED VIEWS AND SPARE PARTS LISTS
Revision Y05-02Service Manual - DUO Series
14.7 Outdoor Unit: OU7- 0912 ST
Item Code Item Description Quantity
Drawing
Number
437045 UPPER COVER EL13 OU LARGE 1 1
433280 SIDE PANEL OU7-24 R410A 1 2
436357 SMALL ELECTRICAL COVER OU 1 3
439329 FRONT COVER/CO' OU7-35/90 EL 1 4
437091 OU SQUARE FAN GUARD 1 5
439163 BASE ASSY OU DUO 1 6
433839 COIL OU7-912 ST GR R410A 1 7
4529604 AXIAL FAN D493*143 1 8
434062 MOTOR 86W,2S,OU7-24 1 9
433281 SIDE GUARD OU7-24 R410 1 10
436358 OU LEADING HANDLE 1 11
439342 MOTOR SUPPORT OU7 1 12
431111 COMPRESSOR GK151PAG 1 14U1
431112 COMPRESSOR GK113PAL 1 14U2
433939 CAPILLARY ASSY OU7-912 ST R 1 15U1
433941 CAPILLARY ASSY UNIT 2 OU7-9 1 15U2
402566 BOARD TPHN 4A6.2 1 17
442007 CAPACITOR 6mF 400V P1/P2 1 18
442012 CAPACITOR 30mF 400V P1/P2 1 20
442013 CAPACITOR 35mF 400V P1/P2 1 20
435968 COMPRESSOR WIRING OU DUO 2 21
437229 ELECTRICAL BOX TPHN 1 24
Page 62
14-8
EXPLODED VIEWS AND SPARE PARTS LISTS
Revision Y05-02 Service Manual - DUO Series
14.8 Outdoor Unit: OU7- 1212 ST
WILL BE RELEASED SHORTLY
Page 63
15-1
APPENDIX A
Revision Y05-02
Service Manual - DUO Series
APPENDIX A
INSTALLATION AND OPERATION MANUAL
► INSTALLATION INSTRUCTION
► ADDITIONAL PAGE FOR MULTI SPLIT UNITS INSTALLATION
Page 64
ADDITIONAL PAGE FOR MULTI SPLIT UNITS INSTALLATION
Detail information is in installation manual of indoor unit
the following content is special requirement of duo outdoor unit.
1. Wiring Diagram 2. Outdoor unit
3. Electrical connections between Outdoor unit and
1. To connect the indoor unit with the outdoor unit use the following electrical cables
Multiple wire cable: 6 wires x 1.5mm²
2. at outdoor unit side:
a. Wire connector of the outdoor unit to the multiple wire power cables
and insert into the terminal end connector in the outdoor unit.
b. Connect the yellow/green ground wire power cables with the cable clamp
c. Secure multiple wire power cable with the cable clamps
433948/02
Attention!
1. For multi-split units, remove power supply cord
from indoor unit.
Connect main supply to outdoor unit only!
2. Do not remove resistors which are connected to
p
oints 8 9 from indoor.
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