Electra WNG 25 DCI Series User manual

WNG 25 / 35 DCI Series
Indoor Units Outdoor Units
WNG 25 DCI ONG 25 DCI
WNG 35 DCI ONG 35 DCI
NOVEMBER – 2008
REFRIGERANT
R410A HEAT PUMP
SM WNGDCI 1-E.1 GB
CONTENTS

A
LIST OF EFFECTIVE PAGES
SM WNGDCI 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 ........ March 2006
Total number of pages in this publication is 76 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............. 1
12-1-12-6.............. 1
13-1-13-6.............. 1
14-1-14-6.............. 1
15-1-15-10............ 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
CONTENTS

i
TABLE OF CONTENTS
SM WNGDCI 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 WNGDCI 1-E.1 GB
1. INTRODUCTION
1.1 General
The new WNG DCI split wall mounted range has expanded, comprising two additional
RC (heat pump) models:
● WNG 25 DCI
● WNG 35 DCI
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 INV series benefits from the most advanced technological innovations,
namely:
● DC inverter technology.
● R410A.
● High COP.
● Lego concept.
● Pre-Charged units up to the max’ allowing tubing distance.
● Networking system connectivity.
● A dry 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 Electrostatic
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.
● Water condensate tray is equipped with two optional drain connections.
● Automatic treated air sweep.
● Low indoor and outdoor noise levels.
● Easy installation and service.
CONTENTS

1-2
INTRODUCTION
SM WNGDCI 1-E.1 GB
1.3 Indoor Unit
The indoor unit is wall mounted, and can be easily fitted to many types of residential
and commercials applications.
● WNG 25, 35
New design is available in LCD and LED versions.
Old design is available in LED version only.
Indoor Unit features:
Feature WNG 25, 35
Display LCD or LED
Ionizer YES
ESF YES
Fresh air Optional
Indoor fan motor Variable speed (PG)
Horizontal motorized louver YES
Vertical motorized louver Optional
Heating element NO
M2L Cable port YES
Dry contact Presence detector or (jumper selected)
power shedding
1.4 Filtration
The WNG DCI 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.
CONTENTS

1-3
INTRODUCTION
SM WNGDCI 1-E.1 GB
1.6 Control
The microprocessor indoor controller, and an infrared remote control, supplied as
standard, provide complete operating function and programming.
Remote controllers: 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.
For further details please refer to the Operational Manual, Appendix A.
1.7 Outdoor Unit
The WNG DCI INV / LEX 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.
● ONG 25 DCI
● ONG 35 DCI
Outdoor Unit Feature
Feature ONG 25, 35 DCI
Display 3 LED’s
Base Heater Optional
Outdoor Fan Variable speed DC Inverter
M2L cable Port No
1.8 Tubing Connections
Flare type interconnecting tubing to be produced on site.
For further details please refer to the Installation Manual, Chapter 9.
1.9 Accessories
Item Description
MIU (WNG) MODBUS interface unit
MIU (K) MODBUS interface unit
RS485 Adapter
To be used as an interface
with RCW or μBMS remote
controllers
Base Heater
M2L cable Port
For further details please refer to Optional Accessories, Chapter 17.
1.10 Inbox Documentation
Each unit is supplied with its own installation and operation manuals.
CONTENTS

1-4
INTRODUCTION
SM WNGDCI 1-E.1 GB
1.11 Matching Table
1.11.1 R410A
OUTDOOR UNITS
INDOOR UNITS
MODEL REFR WNG25 DCI WNG35 DCI K25 DCI K35 DCI
ONG25 DCI R410A √√
ONG35 DCI R410A √√
The above table lists outdoor units and WNG indoor units which can be matched together. In
addition the listed outdoor units can be matched with other types of indoor units such as
cassettes.
For further information please refer to the relevant Service Manual.
CONTENTS

2-1
PRODUCT DATA SHEET
SM WNGDCI 1-E.1 GB
2. PRODUCT DATA SHEET
2.1 WNG 25 DCI
Model Indoor Unit WNG 25 DCI
Model Outdoor Unit DCI 25 R410A
Installation Method of Pipe Flared
Characteristics Units Cooling Heating
Capacity (4) Btu/hr 8530(4780-12280) 11600(5120-17060)
kW 2.5(1.4-3.6) 3.4(1.5-5.0)
Power input (4) kW 0.595(0.42-1.0) 0.81(0.39-1.6)
EER (Cooling) or COP(Heating) (4) W/W 4.20 4.20
Energy efficiency class A A
Power supply
V 220-240
Ph 1
Hz 50
Rated current A 2.7 3.8
Power factor 0.97 0.97
Prated (IDU) W 32
Prated (IDU+ODU) W 1600
Starting current A 10.5
Circuit breaker rating A 15
INDOOR
Fan type & quantity Crossflow x 1
Fan speeds H/M/L RPM 1050/900/800
Air flow (1) H/M/L m3/hr 530/430/330
External static pressure Min Pa 0
Sound power level (2) H/M/L dB(A) 51/ - /39
Sound pressure level(3) H/M/L dB(A) 39/ - /26
Moisture removal l/hr 1
Condenstate drain tube I.D mm 16
Dimensions WxHxD mm 810x285x190
Net Weight kg 10.5
Package dimensions WxHxD mm 870x356x282
Packaged weight kg 13.5
Units per pallet units 28
Stacking height units 7evels
OUTDOOR
Refrigerant control Electronical Expansion Valve
Compressor type,model Single Rotary DC Inverter,Panasonic 5RS102XAB
Fan type & quantity Propeller x 1
Fan speeds H RPM 830
Air flow H m3/hr 1780
Sound power level H dB(A) 61
Sound pressure level(3) H dB(A) 51
Dimensions WxHxD mm 795x610x290
Net Weight kg 38
Package dimensions WxHxD mm 970x650x394
Packaged weight kg 42
Units per pallet Units 9
Stacking height units 3 levels
Refrigerant type R410A
Standard charge kg(7.5m) 1.1
Additional charge No need
Connections between units
Liquid line In.(mm) 1/4"(6.35)
Suction line In.(mm) 3/8"(9.53)
Max.tubing length m. Max.20
Max.height
difference m. Max.10
Operation control type Remote control
Heating elements (Option) kW
Others
(1)Airflow in ducted units;at nominal external static pressure.
(2)Sound power in ducted units is measured at air discharge.
(3)Sound pressure level measured at 1-meter distance from unit.
(4)Rating conditions in accordance to ISO 5151 and ISO 13253 (for ducted units).
CONTENTS

2-2
PRODUCT DATA SHEET
SM WNGDCI 1-E.1 GB
2.2 WNG 35 DCI
Model Indoor Unit WNG 35 DCI
Model Outdoor Unit DCI 35 R410A
Installation Method of Pipe Flared
Characteristics Units Cooling Heating
Capacity (4) Btu/hr 11940(4780-14670) 14670(5100-19790)
kW 3.5(1.4-4.3) 4.3(1.5-5.8)
Power input (4) kW 0.99(0.42-1.25) 1.125(0.39-1.75)
EER (Cooling) or COP(Heating) (4) W/W 3.54 3.82
Energy efficiency class A A
Power supply
V 220-240
Ph 1
Hz 50
Rated current A 4.6 5.2
Power factor 0.97 0.97
Prated (IDU) W 40
Prated (IDU+ODU) W 1800
Starting current A 10.5
Circuit breaker rating A 15
INDOOR
Fan type & quantity Crossflow x 1
Fan speeds H/M/L RPM 1100/950/800
Air flow (1) H/M/L m3/hr 550/450/350
External static pressure Min Pa 0
Sound power level (2) H/M/L dB(A) 52/ - /39
Sound pressure level(3) H/M/L dB(A) 40/ - /26
Moisture removal l/hr 1.5
Condenstate drain tube I.D mm 16
Dimensions WxHxD mm 810x285x190
Net Weight kg 10.5
Package dimensions WxHxD mm 870x356x282
Packaged weight kg 13.5
Units per pallet units 28
Stacking height units 7levels
OUTDOOR
Refrigerant control Electronical Expansion Valve
Compressor type,model Single Rotary DC Inverter,Panasonic 5RS102XAB
Fan type & quantity Propeller x 1
Fan speeds H RPM 830
Air flow H m3/hr 1780
Sound power level H dB(A) 62
Sound pressure level(3) H dB(A) 52
Dimensions WxHxD mm 795x610x290
Net Weight kg 38.5
Package dimensions WxHxD mm 970x650x394
Packaged weight kg 42.5
Units per pallet Units 9
Stacking height units 3 levels
Refrigerant type R410A
Standard charge kg(7.5m) 1.2
Additional charge No need
Connections between units
Liquid line In.(mm) 1/4"(6.35)
Suction line In.(mm) 3/8"(9.53)
Max.tubing length m. Max.20
Max.height
difference m. Max.10
Operation control type Remote control
Heating elements (Option) kW
Others
1)Airflow in ducted units;at nominal external static pressure.
(2)Sound power in ducted units is measured at air discharge.
(3)Sound pressure level measured at 1-meter distance from unit.
(4)Rating conditions in accordance to ISO 5151 and ISO 13253 (for ducted units).
CONTENTS

3-1
RATING CONDITIONS
SM WNGDCI 1-E.1 GB
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
CONTENTS

4-1
OUTLINE DIMENSIONS
SM WNGDCI 1-E.1 GB
4. OUTLINE DIMENSIONS
4.1 Indoor Unit: WNG 25, 35 DCI
4.2 Outdoor Unit: ONG 25,35 DCI
CONTENTS

5-1
PERFORMANCE DATA
SM WNGDCI 1-E.1 GB
5. PERFORMANCE DATA
5.1 WNG 25 DCI
5.1.1 Cooling Capacity (kW) - Run Mode
ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC]
OD COIL
ENTERING AIR DB
TEMPERATURE
[C0]
DATA 22/15 24/17 27/19 29/21 32/23
TC 80 - 110 % of nominal
SC 80 - 105 % of nominal
-10 - 20
(protection range)
PI 25 - 50 % of nominal
TC 2.42 2.57 2.73 2.89 3.05
SC 1.64 1.67 1.71 1.74 1.77
25
PI 0.47 0.48 0.49 0.49 0.50
TC 2.30 2.46 2.62 2.77 2.93
SC 1.60 1.63 1.67 1.70 1.73
30
PI 0.52 0.53 0.54 0.55 0.56
TC 2.18 2.34 2.50 2.66 2.82
SC 1.56 1.59 1.63 1.66 1.69
35
PI 0.58 0.59
0.60 0.60 0.61
TC 2.07 2.23 2.38 2.54 2.70
SC 1.52 1.55 1.58 1.62 1.65
40
PI 0.63 0.64 0.65 0.66 0.67
TC 1.93 2.09 2.24 2.40 2.56
SC 1.47 1.50 1.53 1.57 1.60
46
PI 0.70 0.71 0.72 0.72 0.73
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
OU - 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
CONTENTS

5-2
PERFORMANCE DATA
SM WNGDCI 1-E.1 GB
5.1.3 Heating Capacity (kW) - Run Mode)
ID COIL ENTERING AIR DB TEMPERATURE [ºC]
OD COIL
ENTERING AIR
DB/WB
TEMPERATURE
[ºC]
DATA 15 20 25
TC 2.16 2.01 1.86
-15/-16 PI 0.49 0.54 0.58
TC 2.41 2.26 2.11
-10/-12 PI 0.59 0.64 0.68
TC 2.59 2.44 2.29
-7/-8 PI 0.66 0.71 0.76
TC 2.68 2.53 2.38
-1/-2 PI 0.70 0.75 0.80
TC 2.75 2.59 2.44
2/1 PI 0.72 0.77 0.82
TC 3.55 3.40 3.25
7/6
PI 0.76 0.81 0.86
TC 3.75 3.60 3.44
10/9 PI 0.81 0.86 0.90
TC 3.94 3.79 3.64
15/12 PI 0.85 0.90 0.95
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
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 Ratio
TC
CONTENTS

5-3
PERFORMANCE DATA
SM WNGDCI 1-E.1 GB
5.2 Capacity Correction Factor Due to Tubing Length
5.2.1 Cooling
0.91
0.92
0.93
0.94
0.95
0.96
0.97
0.98
0.99
1.00
1.01
3 4 5 6 7 8 9 1011121314151617181920
Tubing Length [m]
Capacity Ratio
5.2.2 Heating
0.90
0.92
0.94
0.96
0.98
1.00
1.02
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Tubing Length [m]
Capacity Ratio
CONTENTS

5-4
PERFORMANCE DATA
SM WNGDCI 1-E.1 GB
5.3 WNG 35 DCI
5.3.1 Cooling Capacity (kW) - Run Mode
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
TC 80 - 110 % of nominal
SC 80 - 105 % of nominal
-10 - 20
(protection range)
PI 25 - 50 % of nominal
TC 3.38 3.60 3.83 4.05 4.27
SC 2.40 2.45 2.50 2.55 2.60
25
PI 0.78 0.79 0.81 0.82 0.84
TC 3.22 3.44 3.66 3.88 4.11
SC 2.34 2.39 2.44 2.49 2.54
30
PI 0.87 0.88 0.90 0.91 0.93
TC 3.06 3.28 3.50 3.72 3.94
SC 2.28 2.33 2.38 2.43 2.48
35
PI 0.96 0.98
0.99 1.00 1.02
TC 2.89 3.12 3.34 3.56 3.78
SC 2.22 2.27 2.32 2.37 2.42
40
PI 1.05 1.07 1.08 1.10 1.11
TC 2.70 2.92 3.14 3.36 3.58
SC 2.15 2.20 2.25 2.30 2.34
46
PI 1.16 1.18 1.19 1.21 1.22
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
OU - Outdoor
5.3.2 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
CONTENTS

5-5
PERFORMANCE DATA
SM WNGDCI 1-E.1 GB
5.3.3 Heating Capacity (kW) - Run Mode
ID COIL ENTERING AIR DB TEMPERATURE [ºC]
OD COIL
ENTERING AIR
DB/WB
TEMPERATURE
[ºC]
DATA 15 20 25
TC 2.74 2.55 2.35
-15/-16 PI 0.68 0.74 0.81
TC 3.05 2.86 2.66
-10/-12 PI 0.81 0.88 0.95
TC 3.28 3.09 2.90
-7/-8 PI 0.92 0.99 1.06
TC 3.39 3.20 3.01
-1/-2 PI 0.97 1.04 1.11
TC 3.47 3.28 3.09
2/1 PI 1.00 1.07 1.14
TC 4.49 4.30 4.11
7/6 PI 1.06 1.13 1.19
TC 4.74 4.55 4.36
10/9 PI 1.12 1.19 1.26
TC 4.99 4.80 4.60
15/12 PI 1.18 1.25 1.32
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
OU - Outdoor
5.3.4 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 Ratio
TC
CONTENTS

5-6
PERFORMANCE DATA
SM WNGDCI 1-E.1 GB
5.4 Capacity Correction Factor Due to TUbing Length
5.4.1 Cooling
0.91
0.92
0.93
0.94
0.95
0.96
0.97
0.98
0.99
1.00
1.01
3 4 5 6 7 8 9 1011121314151617181920
Tubing Length [m]
Capacity Ratio
5.4.2 Heating
0.90
0.92
0.94
0.96
0.98
1.00
1.02
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Tubing Length [m]
Capacity Ratio
CONTENTS

6-1
PRESSURE CURVES
SM WNGDCI 1-E.1 GB
6. PRESSURE CURVES
6.1 Model: WNG 25 DCI
6.1.1 Cooling - Test Mode
500
600
700
800
900
1000
1100
1200
1300
1400
10 15 20 25 30 35 40 45
Suction Pressure [kPa]
22/15
24/17
27/19
29/21
32/23
Suction Pressure VS. Outdoor Temp' Indoor DB/W B
Temp.
Outdoor Temp.(°C DB)
1000
1250
1500
1750
2000
2250
2500
2750
3000
3250
3500
3750
4000
10 15 20 25 30 35 40 45
Discharge Pressure [kPa]
22/15
24/17
27/19
29/21
32/23
Indoor DB/WB
Temp.
Discharge Pressure VS. Outdoor Temp'
Outdoor Temp.(°C DB)
CONTENTS

6-2
PRESSURE CURVES
SM WNGDCI 1-E.1 GB
6.1.2 Heating - Test Mode
200
300
400
500
600
700
800
900
1000
1100
1200
1300
-15 -10 -5 0 5 10 15
Suction Pressure [kPa]
15
20
25
Suction Pressure VS. Outdoor Temp'
Outdoor Temp.(°C WB)
Indoor DB
Temp'
1000
1250
1500
1750
2000
2250
2500
2750
3000
3250
3500
-15 -10 -5 0 5 10 15
Discharge Pressure [kPa]
15
20
25
Discharge Pressure VS. Outdoor Temp'
Indoor DB
Temp'
Outdoor Temp.(°C WB)
CONTENTS

6-3
PRESSURE CURVES
SM WNGDCI 1-E.1 GB
6.2 Model: WNG 35 DCI
6.2.1 Cooling - Test Mode
500
600
700
800
900
1000
1100
1200
1300
1400
10 15 20 25 30 35 40 45
Suction Pressure [kPa]
22/15
24/17
27/19
29/21
32/23
Suction Pressure VS. Outdoor Temp'
Indoor DB/WB
Temp.
Outdoor Temp.(°C DB)
1000
1250
1500
1750
2000
2250
2500
2750
3000
3250
3500
3750
4000
10 15 20 25 30 35 40 45
Discharge Pressure [kPa]
22/15
24/17
27/19
29/21
32/23
Discharge Pressure VS. Outdoor Temp'
Indoor DB/WB
Temp.
Outdoor Temp.(°C DB)
CONTENTS