Electra Multi Split DUO 50 DCI User manual

Multi Split DUO 50 DCI
Indoor Units Outdoor Units
WNG 25 DCI
DUO 50 DCI
WNG 35 DCI
K 25 DCI
K 35 DCI
PXD 25 DCI
PXD 35 DCI
LS 35 DCI
SEPTEMBER –– 2008
REFRIGERANT
R410A HEAT PUMP
SM DUODCI 1-E.1 GB
CONTENT

A
LIST OF EFFECTIVE PAGES
SM DUODCI 1-E.1 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 ........ January 2005
Total number of pages in this publication is 56 consisting of the following:
Page
No.
Revision
No. #
Page
No.
Revision
No. #
Page
No.
Revision
No. #
Title ....................... 1
A ........................... 1
i............................. 1
1-1 - 1-2 ................ 1
2-1 - 2-6 ................ 1
3-1 - 3-2 ................ 1
4-1 - 4-3 ................ 1
5-1 - 5-15 .............. 1
6-1 - 6-2 ................ 1
7-1 - 7-2 ................ 1
8-1 ........................ 1
9-1 - 9-2 ................ 1
10-1-10-2 .............. 1
11-1-11-16............. 1
12-1-12-6 .............. 1
13-1-13-2 .............. 1
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
CONTENT

i
TABLE OF CONTENTS
SM DUODCI 1-E.1 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 .......................................................................................5-1
6. PRESSURE CURVES ...........................................................................................6-1
7. ELECTRICAL DATA..............................................................................................7-1
8. WIRING DIAGRAMS .............................................................................................8-1
9. REFRIGERATION DIAGRAMS.............................................................................9-1
10. TUBING CONNECTIONS......................................................................................10-1
11. CONTROL SYSTEM .............................................................................................11-1
12. TROUBLESHOOTING ..........................................................................................12-1
13. EXPLODED VIEWS AND SPARE PARTS LISTS.................................................13-1
14. APPENDIX A .........................................................................................................14-1

1-1
INTRODUCTION
SM DUODCI 1-E.1 GB
1. INTRODUCTION
1.1 General
The new DUO50 DCI is a high efficiency inverter technology outddor unit,
since it’s a lego concept unit, it can be matched to several types of inverter indoors, such
as:
wall mounted, cassette , floor/ceiling units, with a capacity range of 2.5 – 3.5 Kw for each
single indoor unit.
1.2 Main Features
• DC Inverter
• R410A
• High COP (A class energy rating)
• Lego Concept
• Pre-Charged
• Dry contact inputs:
o STBY – when shorted, will force all indoors to STBY.
o Night – when shorted, will force outdoor fan to low speed (in cool mode only)
• Dry contact output – Alarm. Will be closed system is faulty.
• Base heater connection.
• Cooling operation at outdoor temperature down to -100C.
• Heating operation at outdoor temperature down to -150C.
• 10 LED’s, shows both indoor and outdoor diagnostics.
• Variable Speed DC Inverter outdoor fan.
• M2L diagnostics softwear cable Port ( for PC).
• Low noise level
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.
CONTENT

1-2
INTRODUCTION
SM DUODCI 1-E.1 GB
1.5 Matching Table
1.5.1 R410A
OUTDOOR UNITS
INDOOR UNITS
MODEL REFRIGER. WNG25 WNG35 K25 K35 PXD25 PXD35 LS35
DUO50 DCI
R410A √√√
R410A √√√√
CONTENT

2-1
PRODUCT DATA SHEET
SM DUODCI 1-E.1 GB
2. PRODUCT DATA SHEET
2.1 Outdoor Unit DUO 50 DCI Specifications.
Model DUO-50 DCI R410A
Function Cooling Heating
Capacity(1) Kcal/hr 4300(1030~5570) 5330(820~6670)
Btu/hr 17050(4090~22100) 21140(3240~26430)
W 5000(1200~6480) 6200(950~7750)
Total Input(1) W 1470(420~2160) 1670(375~2050)
E.E.R (Cooling) / C.O.P (Heating)(1) W/W 3.4 3.71
Running Current A 6.7 7.7
Starting Current A 10.5
Inrush Current A 35
Power Supply V/Ph/Hz 230V/ 1PH / 50Hz
OUTDOOR UNIT
Refrigerant control Electronic expansion valve
Compressor type Scroll DC Inverter
Model Panasonic 5CS130XCC03
Starter type ---
Protection device Outdoor SW control
Heat exchanger Hydrophilic flat fin ,Grooved tube coil
Fan (drive) x No. Propeller x 1
Airflow m3/hr 2160
Motor output W 40
Defrost method Reverse cycle
Noise level Pressure(4)
dB(A) 52 53
Power 62 63
Dimensions W*D*H mm 795*290*610
Weight kg 43
Packing
dimensions W*D*H mm 945 * 395 * 655
Unit stacking units 3
TUBING
Refrigerant R410A
Charge(7.5m connection tube) kg 1500
Fresh Air NO
Tube size liquid mm 6.35
O.D. suction mm 9.53
Connection
method between
the indoor and
outdoor units
indoor & outdoor Flared
height difference
between indoor units Max.5m
height difference
between indoor &
outdoor
Max.10m
tubing length Standard 7.5m
Max.25m for one unit and 30m for total
additional charge No need
(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.
CONTENT

2-2
PRODUCT DATA SHEET
SM DUODCI 1-E.1 GB
2.2 Indoor Units Data
2.2.1 WNG 25 DCI Specifications
Model Indoor Unit / Type WNG 25 DCI / Wall Mounted
Installation Method FLARE
Fan Motor Output W 20
Power Supply V/Ph/Hz 220-240 / 1/ 50
INDOOR
Fan Type & Quantity Crossflow *1
Airflow(2)
Cooling / Heating H/M/L m3/hr 530/570 430/460 330/350
Sound Power Level(3)
Cooling / Heating L - H dB (A) 39-50 / 39-51
Sound Pressure Level (4)
Cooling / Heating L - H dB (A) 26-38 / 26-39
Condensate Drain Tube I.D. mm 16
Dimensions W/H/D mm 810 285 202
Weight kg 11
Package Dimensions W/H/D mm 885 360 285
Stacking Height Units 7
Heating Elements kW N/A
Moisture Removal L/hr 1
2.2.2 WNG 35 DCI Specifications
Model Indoor Unit / Type WNG 35 DCI / Wall Mounted
Installation Method FLARE
Fan Motor Output W 20
Power Supply V/Ph/Hz 220-240 / 1/ 50
INDOOR
Fan Type & Quantity Crossflow *1
Airflow(2)
Cooling / Heating H/M/L m3/hr 550/580 450/480 350/370
Sound Power Level(3)
Cooling / Heating L - H dB (A) 39-52 / 39-52
Sound Pressure Level (4)
Cooling / Heating L - H dB (A) 26-39 / 26-40
Condensate Drain Tube I.D. mm 16
Dimensions W/H/D mm 810 285 202
Weight kg 11
Package Dimensions W/H/D mm 885 360 285
Stacking Height Units 7
Heating Elements kW N/A
Moisture Removal L/hr 1.5
(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.
CONTENT

2-3
PRODUCT DATA SHEET
SM DUODCI 1-E.1 GB
2.2.3 K 25 DCI Specifications
Model Indoor Unit / Type K 25 DCI / Cassette
Installation Method FLARE
Fan Motor Output W 36
Power Supply V/Ph/Hz 220-240 / 1/ 50
INDOOR
Fan Type & Quantity Centifugal *1
Airflow(2)
Cooling / Heating H/M/L m3/hr 530/600 500/530 435/450
Sound Power Level(3)
Cooling / Heating L - H dB (A) 42-48 / 42-47
Sound Pressure Level (4)
Cooling / Heating L - H dB (A) 32-38 / 32-37
Condensate Drain Tube I.D. mm 16
Dimensions W/H/D mm 571 287 571
Weight kg 22.7
Package Dimensions W/H/D mm 685 415 685
Stacking Height Units 5
Heating Elements kW N/A
Moisture Removal L/hr 1
2.2.4 K 35 DCI Specifications
Model Indoor Unit / Type K 35 DCI / Cassette
Installation Method FLARE
Fan Motor Output W 36
Power Supply V/Ph/Hz 220-240 / 1/ 50
INDOOR
Fan Type & Quantity Centifugal *1
Airflow(2)
Cooling / Heating H/M/L m3/hr 580/620 510/560 435/450
Sound Power Level(3)
Cooling / Heating L - H dB (A) 42-49 / 42-48
Sound Pressure Level (4)
Cooling / Heating L - H dB (A) 32-38 / 32-38
Condensate Drain Tube I.D. mm 16
Dimensions W/H/D mm 571 287 571
Weight kg 24.4
Package Dimensions W/H/D mm 685 415 685
Stacking Height Units 5
Heating Elements kW N/A
Moisture Removal L/hr 1.5
NOTE:
(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.
CONTENT

2-4
PRODUCT DATA SHEET
SM DUODCI 1-E.1 GB
2.2.5 PXD 25 DCI Specifications
Model Indoor Unit / Type PXD 25 DCI / Cassette
Installation Method FLARE
Fan Motor Output W 36
Power Supply V/Ph/Hz 220-240 / 1/ 50
INDOOR
Fan Type & Quantity Centifugal *2
Airflow(2)
Cooling / Heating H/M/L m3/hr 400 350 300
Sound Power Level(3)
Cooling / Heating L - H dB (A) 47-50
Sound Pressure Level (4)
Cooling / Heating L - H dB (A) 35-39
Condensate Drain Tube I.D. mm 16
Dimensions W/H/D mm 820 630 190
Weight kg 21
Package Dimensions W/H/D mm 890 710 280
Stacking Height Units 7
Heating Elements kW N/A
Moisture Removal L/hr 1
2.2.6 PXD 35 DCI Specifications
Model Indoor Unit / Type PXD 35 DCI / Cassette
Installation Method FLARE
Fan Motor Output W 36
Power Supply V/Ph/Hz 220-240 / 1/ 50
INDOOR
Fan Type & Quantity Centifugal *2
Airflow(2)
Cooling / Heating H/M/L m3/hr 450 400 300
Sound Power Level(3)
Cooling / Heating L - H dB (A) 51-56
Sound Pressure Level (4)
Cooling / Heating L - H dB (A) 45-38
Condensate Drain Tube I.D. mm 16
Dimensions W/H/D mm 820 630 190
Weight kg 22
Package Dimensions W/H/D mm 890 710 280
Stacking Height Units 7
Heating Elements kW N/A
Moisture Removal L/hr 1.9
NOTE:
(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.
CONTENT

2-5
PRODUCT DATA SHEET
SM DUODCI 1-E.1 GB
2.2.7 LS 35 DCI Specifications
Model Indoor Unit / Type LS 35 DCI / Cassette
Installation Method FLARE
Fan Motor Output W 36
Power Supply V/Ph/Hz 220-240 / 1/ 50
INDOOR
Fan Type & Quantity Centifugal *2
Airflow(2)
Cooling / Heating H/M/L m3/hr 830 700 530
Sound Power Level(3)
Cooling / Heating L - H dB (A) 52-59
Sound Pressure Level (4)
Cooling / Heating L - H dB (A) 35-42
Condensate Drain Tube I.D. mm 16
Dimensions W/H/D mm 860 245 680
Weight kg 30.0
Package Dimensions W/H/D mm 1055 305 728
Stacking Height Units 6
Heating Elements kW N/A
Moisture Removal L/hr 1.3
NOTE:
(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.
CONTENT

2-6
PRODUCT DATA SHEET
SM DUODCI 1-E.1 GB
2.3 Data For Outdoor Unit DUO 50 DCI Combinations
(Based on WNG)
Indoor Units
Combinations
Cooling Heating
Room A Room B Total
Capacity Power Input Room A Room B Total Capacity Power Input
[W] [W] [W] [W] [W] [W] [W] [W]
25 2500 - 2500
(1220 - 3700)
680
(420 - 980) 3400 - 3400 (950 - 4000)
1135
(375 - 1250)
35 3500 - 3500
(1220 - 4350)
1030
(420 - 1275) 4200 - 4200 (950 - 5200)
1575
(375 - 1760)
25+25 2500 2500 5000
(1400 - 6000)
1470
(410 - 2100) 3100 3100 6200 (1250 - 7100)
1670
(320 - 1960)
25+35 2500 3000 5500
(1400 - 6240)
1850
(410 - 2130) 3100 3450 6550 (1250 - 7400)
1760
(320 - 2020)
35+35 3000 3000 6000
(1400 - 6480)
2040
(410 - 2160) 3450 3450 6900 (1250 - 7750)
1970
(320 - 2050)
2.3.1 Correction Factors:
Capacity Power input
Model Cooling Heating Cooling Heating
PXD25 DCI 1.0 0.95 1.0 1.08
PXD35 DCI 1.02 0.96 1.0 1.08
LS35 DCI 1.02 0.95 1.0 0.91
K25 DCI 1.02 1.01 1.01 1.01
K35 DCI 1.06 0.97 1.05 0.99
2.3.2 Calculation Example.
WNG25+K35 Cooling Mode:
Indoor Unit Cooling Capacity [W] Power Input [W]
Room A – WNG25 2500 1850 x (2500/5000) = 840
Room B – K35 (3000 x 1.06) = 3180 1850 x (3000/5000) x 1.05 = 1059
Total (2500+3180) = 5680 840+1059 = 1899
2.3.3 K35+K35 Heating Mode:
Indoor Unit Heating Capacity [W] Power Input [W]
Room A – K35 (3000 x 0.97) = 2910 (2040 x 0.99) = 2019
Room B – K35 (3000 x 0.97) = 2910 (2040 x 0.99) = 2019
Total (2910+2910) = 5820 (2019+2019) = 4038
CONTENT

3-1
RATING CONDITIONS
SM DUODCI 1-E.1 GB
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 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 1PH 198 – 264 V
3PH N/A
CONTENT

4-1
OUTLINE DIMENSIONS
SM DUODCI 1-E.1 GB
4. OUTLINE DIMENSIONS
4.1 Indoor Unit: WNG 25 / 35 DCI
4.2 Indoor Unit: K25 / 35 DCI
CONTENT

4-2
OUTLINE DIMENSIONS
SM DUODCI 1-E.1 GB
4.3 Indoor Unit: PXD 25 / 35 DCI
4.4 Indoor Unit: LS 35 DCI
CONTENT

4-3
OUTLINE DIMENSIONS
SM DUODCI 1-E.1 GB
4.3 Outdoor Unit: DUO 38 DCI / Delta
CONTENT

5-1
PERFORMANCE DATA
SM DUODCI 1-E.1 GB
5. PERFORMANCE DATA
5.1 WNG 25 DCI
5.1.1 Cooling Capacity (kW) - Run Mode (Unit A or B)
230[V] : Indoor Fan at High Speed.
ID COIL ENTERING AIR DB/WB TEMPERATURE [0C]
OD COIL
ENTERING AIR DB
TEMPERATURE [0C]
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 2.42 2.57 2.73 2.89 3.05
SC 1.72 1.75 1.79 1.82 1.86
PI 0.58 0.59 0.60 0.61 0.62
30
TC 2.30 2.46 2.62 2.77 2.93
SC 1.67 1.71 1.74 1.78 1.81
PI 0.65 0.66 0.67 0.68 0.69
35
TC 2.18 2.34 2.50 2.66 2.82
SC 1.63 1.66 1.70 1.74 1.77
PI 0.71 0.72 0.74 0.75 0.76
40
TC 2.07 2.23 2.38 2.54 2.70
SC 1.59 1.62 1.66 1.69 1.73
PI 0.78 0.79 0.80 0.81 0.82
46
TC 1.93 2.09 2.24 2.40 2.56
SC 1.53 1.57 1.60 1.64 1.67
PI 0.86 0.87 0.88 0.89 0.91
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
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
20 25 30 35 40 45
Outdoor Temperature [deg C]
Capacity Ratio
n
CONTENT

5-2
PERFORMANCE DATA
SM DUODCI 1-E.1 GB
5.1.3 Heating Capacity (kW) - Run Mode(Unit A or B)
230[V] : Indoor Fan at High Speed.
ID COIL ENTERING AIR DB TEMPERATURE [0C]
OD COIL ENTERING
AIR DB/WB
TEMPERATURE [0C]
DATA 15 20 25
-15/-16 TC 1.97 1.84 1.70
PI 0.50 0.55 0.60
-10/-12 TC 2.20 2.06 1.92
PI 0.60 0.65 0.71
-7/-8 TC 2.36 2.23 2.09
PI 0.68 0.73 0.78
-1/-2 TC 2.45 2.31 2.17
PI 0.72 0.77 0.82
2/1 TC 2.50 2.37 2.23
PI 0.75 0.80 0.85
7/6 TC 3.24 3.10 2.96
PI 0.78 0.84 0.89
10/9 TC 3.42 3.28 3.14
PI 0.83 0.88 0.93
15/12 TC 3.60 3.46 3.32
PI 0.88 0.93 0.98
15-24 TC 85 - 105 % of nominal
(Protection Range) PI 80 - 120 % of nominal
LEGEND
TC – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (oC)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OU – Outdoor
5.1.4 Capacity Correction Factors
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
-15 -10 -5 0 5 10 15
Outdoor WB Temperature [deg C]
Capacity Ration
CONTENT

5-3
PERFORMANCE DATA
SM DUODCI 1-E.1 GB
5.2 WNG 35 DCI
5.2.1 Cooling Capacity (kW) - Run Mode (Unit A or B)
230[V] : Indoor Fan at High Speed.
ID COIL ENTERING AIR DB/WB TEMPERATURE [0C]
OD COIL
ENTERING AIR DB
TEMPERATURE [0C]
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 2.90 3.09 3.28 3.47 3.66
SC 2.06 2.10 2.14 2.19 2.23
PI 0.80 0.82 0.83 0.85 0.86
30
TC 2.76 2.95 3.14 3.33 3.52
SC 2.01 2.05 2.09 2.13 2.18
PI 0.90 0.91 0.93 0.94 0.96
35
TC 2.62 2.81 3.00 3.19 3.38
SC 1.96 2.00 2.04 2.08 2.12
PI 0.99 1.00 1.02 1.04 1.05
40
(Protection Range)
TC 2.48 2.67 2.86 3.05 3.24
SC 1.90 1.95 1.99 2.03 2.07
PI 1.08 1.10 1.11 1.13 1.14
46
(Protection Range)
TC 2.31 2.50 2.69 2.88 3.07
SC 1.84 1.88 1.93 1.97 2.01
PI 1.20 1.21 1.23 1.24 1.26
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 Capacity Ratio Vs. Outdoor Temperature
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
20 25 30 35 40 45
Outdoor Temperature [deg C]
Capacity Ration
CONTENT

5-4
PERFORMANCE DATA
SM DUODCI 1-E.1 GB
5.2.3 Heating Capacity (kW) - Run Mode(Unit A or B)
230[V] : Indoor Fan at High Speed.
ID COIL ENTERING AIR DB TEMPERATURE [0C]
OD COIL ENTERING
AIR DB/WB
TEMPERATURE [0C]
DATA 15 20 25
-15/-16 TC 2.20 2.04 1.89
PI 0.59 0.65 0.71
-10/-12 TC 2.44 2.29 2.14
PI 0.71 0.77 0.83
-7/-8 TC 2.63 2.48 2.32
PI 0.80 0.86 0.92
-1/-2 TC 2.72 2.57 2.42
PI 0.85 0.91 0.97
2/1 TC 2.79 2.63 2.48
PI 0.88 0.94 1.00
7/6 TC 3.60 3.45 3.30
PI 0.92 0.99 1.05
10/9 TC 3.80 3.65 3.50
PI 0.98 1.04 1.10
15/12 TC 4.00 3.85 3.69
PI 1.04 1.10 1.16
15-24 TC 85 - 105 % of nominal
(Protection Range) PI 80 - 120 % of nominal
LEGEND
TC – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (oC)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OU – Outdoor
5.3.4 Capacity Correction Factors
Heating Capacity Ratio Vs. Outdoor Temperature
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
-15 -10 -5 0 5 10 15
Outdoor WB Temperature [deg C]
Capacity Ration
CONTENT

5-5
PERFORMANCE DATA
SM DUODCI 1-E.1 GB
5.3 K 25 DCI
5.3.1 Cooling Capacity (kW) - Run Mode(Unit A or B)
230[V] : Indoor Fan at High Speed.
ID COIL ENTERING AIR DB/WB TEMPERATURE [0C]
OD COIL
ENTERING AIR DB
TEMPERATURE [0C]
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 2.46 2.63 2.79 2.95 3.11
SC 1.75 1.79 1.82 1.86 1.89
PI 0.58 0.59 0.61 0.62 0.63
30
TC 2.35 2.51 2.67 2.83 2.99
SC 1.71 1.74 1.78 1.81 1.85
PI 0.65 0.66 0.67 0.68 0.70
35
TC 2.23 2.39 2.55 2.71 2.87
SC 1.66 1.70 1.73 1.77 1.81
PI 0.72 0.73 0.74 0.75 0.76
40
TC 2.11 2.27 2.43 2.59 2.75
SC 1.62 1.65 1.69 1.73 1.76
PI 0.79 0.80 0.81 0.82 0.83
46
TC 1.97 2.13 2.29 2.45 2.61
SC 1.57 1.60 1.64 1.67 1.71
PI 0.87 0.88 0.89 0.90 0.91
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
5.3.2 Capacity Correction Factors
Cooling Capacity Ratio Vs. Outdoor Temperature
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
20 25 30 35 40 45
Outdoor Temperature [deg C]
Capacity Ration
CONTENT