Electra WNG 60 DCI User manual

Service Manual
WNG LED/LCD DCI Inverter Series
REFRIGERANT
R410A
HEAT PUMP
NOVEMBER – 2005
Indoor Units Outdoor Units
WNG 50 DCI DCI 50
WNG 60 DCI DCI 60
WNG 80 DCI DCI 80

A
LIST OF EFFECTIVE PAGES
Revision Y05-02 Service Manual - WNG 50_60_80 DCI
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 ........ April 2005
Total number of pages in this publication is 107 consisting of the following:
Page
No.
Revision
No. #
Page
No.
Revision
No. #
Page
No.
Revision
No. #
Title....................... 1
A ........................... 1
i............................. 1
1-1 - 1-4................ 1
2-1 - 2-3................ 1
3-1 ........................ 1
4-1 - 4-3................ 1
5-1 - 5-13.............. 1
6-1 - 6-4................ 1
7-1 ........................ 1
8-1-8-2.................. 1
9-1-9-2.................. 1
10-1 ...................... 1
11-1-11-19............. 2
12-1-12-6.............. 1
13-1-13-6.............. 2
14-1-14-6.............. 1
15-1-15-10............ 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

i
TABLE OF CONTENTS
Revision Y05-02
Service Manual - WNG 50_60_80 DCI
Table of Contents
1. INTRODUCTION WNG 50/60/80...........................................................................1-1
2. PRODUCT DATA SHEET WNG 50/60/80 .............................................................2-1
3. RATING CONDITIONS WNG 50/60/80 .................................................................3-1
4. OUTLINE DIMENSIONS WNG 50/60/80...............................................................4-1
5. PERFORMANCE DATA & PRESSURE CURVES WNG 50/60/80 ......................5-1
6. SOUND LEVEL CHARACTERISTICS WNG 50/60/80 .........................................6-1
7. ELECTRICAL DATA WNG 50/60/80 .....................................................................7-1
8. WIRING DIAGRAMS WNG 50/60/80 ....................................................................8-1
9. REFRIGERATION DIAGRAMS WNG 50/60/80 ....................................................9-1
10. TUBING CONNECTIONS WNG 50/60/80.............................................................10-1
11. CONTROL SYSTEM WNG 50/60..........................................................................11-1
12. CONTROL SYSTEM WNG 80...............................................................................12-1
13. TROUBLESHOOTING WNG 50/60.......................................................................13-1
14. TROUBLESHOOTING WNG 80............................................................................14-1
15. EXPLODED VIEWS AND SPARE PARTS LISTS WNG 50/60/80........................15-1
16. APPENDIX A WNG 50/60/80 ................................................................................16-1

1-1
INTRODUCTION
Revision Y05-02
Service Manual - WNG 50_60_80 DCI
1. INTRODUCTION
1.1 General
The new WNG DCI INVENTER split wall mounted range has expanded, comprising
two additional RC(heat pump) models:
● WNG50
● WNG60
● WNG80
The indoor WNG units are available as LED or LCD display types, featuring esthetic
design, compact dimensions, and low noise operation.
1.2 Main Features
The WNG DCI series benefits from the most advanced technological innovations,
namely:
● DC inverter technolegy.
● R410A.
● High COP.
● Pre-Charged units up to the max’ allowing tubing distance.
● Networking system connectivity.
● Adry contact for clock or power shedding functions (configurable).
● Base heater connection.
● Cooling operation at outdoor temperature down to -10°C.
● Heating operation at outdoor temperature down to -15°C.
● Supports Indoor Air Quality features, such as – Ionizer, Active Electro-
Static Filter.
● Indoor large diameter cross flow fan, allowing low noise level operation.
● Bended indoor coil with treated aluminum fins and coating for improved
efficiency.
● Easy access to the interconnecting tubing and wiring connections, so
that removing the front grill or casing is not necessary.
● Refrigerant pipes can be connected to the indoor unit from 5 different
optional directions.
● Automatic treated air sweep.
● Low indoor and outdoor noise levels.
● Easy installation and service.

1-2
INTRODUCTION
Revision Y05-02 Service Manual - WNG 50_60_80 DCI
1.3 Indoor Unit
The indoor unit is wall mounted, and can be easily fitted to many types of residential
and commercials applications.
Indoor Unit features:
Feature WNG 50 WNG60 WNG80
Display LCD or LED LCD
Ionizer YES
ESF YES
Fresh air YES NO
Indoor fan motor Variable speed (PG)
Horizontal motorized louver YES
Vertical motorized louver YES
Heating element NO
M2L Cable port YES
Dry contact Presence detector or (jumper selected) power shedding
1.4 Filtration
The WNG DCI INV series presents several types of air filters:
● Easily accessible, and re-usable pre-filters (mesh)
● Pre-charged electrostatic filter (disposable)
● Active carbon filter (disposable)
● ESF. Active Electro Static re-usable filter (optional)
1.5 Ionizer (Optional)
A special design Ionizer protected by unique patents integrated into the indoor unit,
generating negative ions to the room providing comfort and upgraded indoor air quality.
1.6 Control
The microprocessor indoor controller, and an infrared remote control, supplied as
standard, provide complete operating function and programming.
Remote controlers:RC-2/3/4/5/7,RC-4i-1,RCW,µBMS
Networking system Airconet version 4.2 and up, MIU SW version H8 and up.

1-3
INTRODUCTION
Revision Y05-02
Service Manual - WNG 50_60_80 DCI
1.7 Outdoor Unit
The WNG DCI INV 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.
· Outdoor Unit Feature
Feature DCI 50 DCI 60 DCI 80
Display 3 LED’s
Base Heater Optional
Outdoor Fan Variable speed DC Inverter
M2L cable Port No Yes
Night No Yes
STBY No Yes
Power Shedding No Yes
Alarm No Yes
1.8 Tubing Connections
Flare type interconnecting tubing to be produced on site.
For further details please refer to the Installation Manual, Appendix A.
1.9 Accessories
Item Description
MIU(WNG) MODBUS interface unit
RS485 Adapter
To be used as an interface
with RCW or µBMS remote
controllers
Base Heater
M2L cable Port
1.10 Inbox Documentation
Each unit is supplied with its own installation and operation manuals.

1-4
INTRODUCTION
Revision Y05-02 Service Manual - WNG 50_60_80 DCI
1.11 Matching Table
1.11.1 R410A
OUTDOOR UNITS
INDOOR UNITS
MODEL REFR” WNG50 DCI WNG60 DCI WNG80 DCI
DCI 50 R410A √
DCI 60 R410A √
DCI 80 R410A √

2-1
PRODUCT DATA SHEET
Revision Y05-02Service Manual - WNG 50_60_80 DCI
(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN 14511.
(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. PRODUCT DATA SHEET
2.1 WNG50 DCI
Model Indoor Unit WNG 50
Model Outdoor Unit DCI 50
Installation Method of Pipe Flared
Characteristics Units Cooling Heating
Capacity (1) Btu/hr 17060(5120-20470) 20470(5120-25930)
kW 5.00(1.50-6.00) 6.00(1.50-7.60)
Power input (1) kW 1.46(0.50-2.00) 1.66(0.45-2.20)
EER (Cooling) or COP(Heating) (1) W/W 3.42 3.61
Energy efficiency class AA
Power supply V/Ph/Hz 220-240V/Single/50Hz
Rated current A 6.6 7.5
Starting current A 10.5
Circuit breaker rating A 20
INDOOR
Fan type & quantity Crossflow x 1
Fan speeds H/M/L RPM 1200/1050/900
Air flow (2) H/M/L m3/hr 850/760/620
External static pressure Min-Max Pa 0
Sound power level (3) H/M/L dB(A) 55/51/47
Sound pressure level(4) H/M/L dB(A) 43/39/34
Moisture removal l/hr 2
Condenstate drain tube I.D mm 16
Dimensions WxHxD mm 1060x295x210
Weight kg 15
Package dimensions WxHxD mm 1125x360x280
Packaged weight kg 18
Units per pallet units 16 units per pallet
Stacking height units 8 levels
OUTDOOR
Refrigerant control EEV
Compressor type,model Scroll,Panasonic 5CS130XCC03
Fan type & quantity Propeller(direct) x 1
Fan speeds H/L RPM 920
Air flow H/L m3/hr 2160
Sound power level H/L dB(A) 63
Sound pressure level(4) H/L dB(A) 53
Dimensions WxHxD mm 795x610x290
Weight kg 39
Package dimensions WxHxD mm 945x655x395
Packaged weight kg 43
Units per pallet Units 9 units per pallet
Stacking height units 3 levels
Refrigerant type R410A
Refrigerant chargless distance kg/m 1.50/7.5
Additional charge per 1 meter g/m No need
Connections between units
Liquid line In.(mm) 1/4”(6.35)
Suction line In.(mm) 1/2”(12.7)
Max.tubing length m. Max.30
Max.height difference m. Max. 10
Operation control type Remote control
Heating elements kW
Others

2-2
PRODUCT DATA SHEET
Revision Y05-02 Service Manual - WNG 50_60_80 DCI
(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN 14511.
(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.
2.2 WNG60 DCI
Model Indoor Unit WNG-60
Model Outdoor Unit DCI60
Installation Method of Pipe Flared
Characteristics Units Cooling Heating
Capacity (1) Btu/hr 20470(5120-22860) 22180(5120-26950)
kW 6.00(1.50-6.70) 6.50(1.80-7.90)
Power input (1) kW 1.99(0.50-2.20) 1.90(0.45-2.30)
EER (Cooling) or COP(Heating) (1) W/W 3.02 3.42
Energy efficiency class B B
Power supply V/Ph/Hz 220-240V/Single/50Hz
Rated current A 8.9 8.6
Starting current A 10.5
Circuit breaker rating A 20
INDOOR
Fan type & quantity Crossflow x 1
Fan speeds H/M/L RPM 1250/1100/1000
Air flow (2) H/M/L m3/hr 900/760/620
External static pressure Min-Max Pa 0
Sound power level (3) H/M/L dB(A) 56/53/48
Sound pressure level(4) H/M/L dB(A) 45/40/34
Moisture removal l/hr 2
Condenstate drain tube I.D mm 16
Dimensions WxHxD mm 1060x295x210
Weight kg 15
Package dimensions WxHxD mm 1125x360x280
Packaged weight kg 18
Units per pallet units 16 units per pallet
Stacking height units 8 levels
OUTDOOR
Refrigerant control EEV
Compressor type,model Scroll,Panasonic 5CS130XCC03
Fan type & quantity Propeller(direct) x 1
Fan speeds H/L RPM 820
Air flow H/L m3/hr 2860
Sound power level H/L dB(A) 65
Sound pressure level(4) H/L dB(A) 55
Dimensions WxHxD mm 846x690x302
Weight kg 46
Package dimensions WxHxD mm 990x770x430
Packaged weight kg 50
Units per pallet Units 9 units per pallet
Stacking height units 3 levels
Refrigerant type R410A
Refrigerant chargless distance kg/m 1.65/7.5
Additional charge per 1 meter g/m No need
Connections between units
Liquid line In.(mm) 1/4”(6.35)
Suction line In.(mm) 1/2”(12.7)
Max.tubing
length m. Max.30
Max.height
difference m. Max. 10
Operation control type Remote control
Heating elements kW
Others

2-3
PRODUCT DATA SHEET
Revision Y05-02Service Manual - WNG 50_60_80 DCI
2.3 WNG80 DCI
Model Indoor Unit WNG- 80
Model Outdoor Unit DCI 80
Installation Method of Pipe Flared
Characteristics Units Cooling Heating
Capacity (1) Btu/hr 26620(5100~30035) 29010 (5100~32420)
kW 7.8 (1.50~8.8) 8.5 (1.5~9.5)
Power input (1) kW 2.59 (0.50~3.1) 2.65 (0.5~3.2)
EER (Cooling) or COP(Heating) (1) W/W 3.01 3.21
Energy efficiency class B C
Power supply V/Ph/Hz 220-240V/Single/50Hz
Rated current A 11.3 11.5
Starting current A 15
Circuit breaker rating A 20
INDOOR
Fan type & quantity Crossflow x 1
Fan speeds H/M/L RPM 1350/1150/1000 1350/1200/1050
Air flow (2) H/M/L m3/hr 1250/1050/900 1250/1100/950
External static pressure Min-Max Pa N/A
Sound power level (3) H/M/L dB(A) 66/61/57
Sound pressure level(4) H/M/L dB(A) 51/48/44
Moisture removal l/hr 3
Condensate drain tube I.D mm 16
Dimensions WxHxD mm 1200x340x236
Weight kg 18.5
Package dimensions WxHxD mm 1305x430x325
Packaged weight kg 24
Units per pallet units 12 units per pallet
Stacking height units 6 levels
OUTDOOR
Refrigerant control EEV
Compressor type, model Twin Rotary DC Inverter Mitsubishi TNB220F
Fan type & quantity Propeller(direct) x 1
Fan speeds H/L RPM 850
Air flow H/L m3/hr 3600
Sound power level (3) H/L dB(A) 66
Sound pressure level(4) H/L dB(A) 56
Dimensions WxHxD mm 950x412x835
Weight kg 66
Package dimensions WxHxD mm 1080x477x910
Packaged weight kg 73.5
Units per pallet Units 2 units per pallet
Stacking height units 3 levels
Refrigerant type R410A
Refrigerant chargless distance kg/m 2.75/7.5
Additional charge per 1 meter g/m No need
Connections between units
Liquid line In.(mm) 3/8”(9.53)
Suction line In.(mm) 5/8”(15.88)
Max. tubing length m. Max.30
Max. height
difference m. Max. 15
Operation control type Remote control
Heating elements kW
Others
(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN 14511.
(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.

3-1
RATING CONDITIONS
Revision Y05-02
Service Manual - WNG 50_60_80 DCI
3. RATING CONDITIONS
Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units).
Cooling:
Indoor: 27oC DB 19oC WB
Outdoor: 35 oC DB
Heating:
Indoor: 20oC DB
Outdoor: 7oC DB 6oC WB
3.1 Operating Limits
3.1.1 R410A
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 198 – 264 V

4-1
OUTLINE DIMENSIONS
Revision Y05-02
Service Manual - WNG 50_60_80 DCI
4. OUTLINE DIMENSIONS
4.1 Indoor Unit: WNG 50/60 DCI
4.2 Outdoor Unit: DCI 50

4-2
OUTLINE DIMENSIONS
Revision Y05-02 Service Manual - WNG 50_60_80 DCI
4.3 Outdoor Unit: DCI 60

4-3
OUTLINE DIMENSIONS
Revision Y05-02
Service Manual - WNG 50_60_80 DCI
4.4 Indoor Unit: WNG 80
4.4 Outdoor Unit: DCI 80
80
45
340
157.5
187.5
90
261.5
390
10
450
1200
180
R20
187
45
395
85
34
AIR INTAKE
AIR OUTLET
AIR INTAKE
340
236 1200
TUBING WALL OPENING
(FOR REAR LEFT ROUTING)
TUBING WALL OPENING
(FOR REAR ROUTING)
150mm MIN
CEILING
MOUTING PLATE OUTLINE
MOUNTING TEMPLATE
TO BE USED FOR LOCATION
OF INDOOR UNIT ON THE WALL
INDOOR UNIT OUTLINE
624
570
570
204
AIR INTAKE
AIR OUTLET

5-1
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02
Service Manual - WNG 50_60_80 DCI
5. PERFORMANCE DATA
5.1 WNG 50 DCI
5.1.1 Cooling Capacity (kW) - Run Mode
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 4.93 5.22 5.51 5.80 6.09
SC 4.10 4.16 4.22 4.28 4.34
PI 1.10 1.13 1.15 1.18 1.20
30
TC 4.67 4.96 5.25 5.54 5.83
SC 3.94 4.00 4.06 4.12 4.18
PI 1.26 1.28 1.31 1.33 1.36
35
TC 4.42 4.71 5.00 5.29 5.58
SC 3.78 3.84 3.90 3.96 4.02
PI 1.41 1.44 1.46 1.48 1.51
40
TC 4.17 4.46 4.75 5.04 5.53
SC 3.62 3.68 3.74 3.80 3.86
PI 1.56 1.59 1.61 1.64 1.66
46
TC 3.86 4.15 4.44 4.73 5.02
SC 3.43 3.49 3.55 3.61 3.67
PI 1.75 1.77 1.80 1.82 1.85
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 Capacity Ratio Vs. Outdoor Tempera ture
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
20 25 30 35 40 45
Outdoor DB Temperature [ºC]
Capacity Ration

5-2
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02 Service Manual - WNG 50_60_80 DCI
5.1.3 Heating Capacity (kW) - Run Mode)
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 2.73 2.34 1.94
PI 1.16 1.24 1.33
-10/-12 TC 3.60 3.21 2.82
PI 1.31 1.40 1.48
-7/-8 TC 4.26 3.87 3.47
PI 1.43 1.51 1.59
-1/-2 TC 4.59 4.19 3.80
PI 1.48 1.57 1.65
2/1 TC 4.81 4.41 4.02
PI 1.52 1.60 1.69
7/6 TC 6.39 6.00 5.61
PI 1.58 1.66 1.74
10/9 TC 6.72 6.33 5.94
PI 1.61 1.69 1.77
15/12 TC 7.06 6.66 6.27
PI 1.64 1.72 1.80
15-24 TC 85 - 105 % of nominal
(Protection Range) PI 80 - 120 % of nominal
LEGEND
TC – Total Cooling 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 Capacity Ratio Vs. Outdoor Temperature
0.40
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 [ºC]
Capacity Ration

5-3
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02
Service Manual - WNG 50_60_80 DCI
5.2 WNG 60 DCI
5.2.1 Cooling Capacity (kW) - Run Mode
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 5.91 6.26 6.61 6.95 7.30
SC 4.64 4.71 4.78 4.85 4.92
PI 1.50 1.54 1.57 1.61 1.64
30
TC 5.61 5.96 6.30 6.65 7.00
SC 4.46 4.53 4.60 4.67 4.74
PI 1.71 1.75 1.78 1.81 1.85
35
TC 5.30 5.65 6.00 6.35 6.70
SC 4.28 4.35 4.42 4.49 4.56
PI 1.92 1.96 1.99 2.02 2.06
40
(Protection Range)
TC 5.00 5.35 5.70 6.05 6.39
SC 4.10 4.17 4.24 4.31 4.38
PI 2.13 2.17 2.20 2.23 2.27
46
(Protection Range)
TC 4.64 4.99 5.33 5.68 6.03
SC 3.88 3.95 4.02 4.09 4.16
PI 2.38 2.42 2.45 2.48 2.52
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 Ra tio 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 DB Temperature [ºC]
Capacity Ration

5-4
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02 Service Manual - WNG 50_60_80 DCI
5.2.3 Heating Capacity (kW) - Run Mode
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 2.96 2.53 2.11
PI 1.33 1.42 1.52
-10/-12 TC 3.90 3.48 3.05
PI 1.50 1.60 1.69
-7/-8 TC 4.61 4.19 3.76
PI 1.63 1.73 1.82
-1/-2 TC 4.97 4.54 4.12
PI 1.70 1.79 1.82
2/1 TC 5.21 4.78 4.35
PI 1.74 1.84 1.93
7/6 TC 6.93 6.50 6.07
PI 1.81 1.90 2.00
10/9 TC 7.28 6.86 6.43
PI 1.84 1.93 2.03
15/12 TC 7.64 7.22 6.79
PI 1.87 1.97 2.06
15-24 TC 85 - 105 % of nominal
(Protection Range) PI 80 - 120 % of nominal
LEGEND
TC – Total Cooling 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 Capacity Ratio Vs. Outdoor Temperature
0.40
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 [ºC]
Capacity Ration

5-5
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02
Service Manual - WNG 50_60_80 DCI
5.3 WNG 80 DCI
5.3.1 Cooling Capacity (kW) - Run Mode
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 7.68 8.14 8.59 9.04 9.49
SC 6.41 6.51 6.60 6.70 6.79
PI 1.96 2.00 2.05 2.09 2.13
30
TC 7.29 7.74 8.19 8.65 9.10
SC 6.16 6.25 6.35 6.45 6.54
PI 2.23 2.27 2.32 2.36 2.41
35
TC 6.90 7.35 7.80 8.25 8.70
SC 5.91 6.00 6.10 6.20 6.29
PI 2.50 2.55 2.59 2.63 2.68
40
(Protection Range)
TC 6.50 6.95 7.41 7.86 8.31
SC 5.66 5.75 5.85 5.95 6.04
PI 2.77 2.82 2.86 2.91 2.95
46
(Protection Range)
TC 6.03 6.48 6.93 7.39 7.84
SC 5.36 5.45 5.55 5.64 5.74
PI 3.10 3.14 3.19 3.23 3.28
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 Ra tio 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 DB Temperature [ºC]
Capacity Ration

5-6
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-02 Service Manual - WNG 50_60_80 DCI
5.3.3 Heating Capacity (kW) - Run Mode
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 3.87 3.31 2.75
PI 1.85 1.99 2.12
-10/-12 TC 5.11 4.55 3.99
PI 2.09 2.23 2.36
-7/-8 TC 6.03 5.48 4.92
PI 2.28 2.41 2.54
-1/-2 TC 6.50 5.94 5.38
PI 2.37 2.50 2.63
2/1 TC 6.81 6.25 5.69
PI 2.43 2.56 2.69
7/6 TC 9.06 8.50 7.94
PI 2.52 2.65 2.78
10/9 TC 9.53 8.97 8.41
PI 2.57 2.70 2.83
15/12 TC 10.00 9.44 8.88
PI 2.61 2.75 2.88
15-24 TC 85 - 105 % of nominal
(Protection Range) PI 80 - 120 % of nominal
LEGEND
TC – Total Cooling Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (oC)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OD – Outdoor
5.3.4 Capacity Correction Factors
Heating Capacity Ratio Vs. Outdoor Temperature
0.40
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 [ºC]
Capacity Ration