Electra WNG 7 User manual

WNG LED/LCD Series
Indoor Units Outdoor Units
WNG 7 GCN 7 ONG 7
WNG 9 GCN 9 ONG 9
WNG 12 GCN 12 ONG 12
WNG 14 GC 14 ONG 14
WNG 18 GC 18 —
WNG 21 GC 22 —
WNG 24 OU7-24 —
OU7-24Z —
WNG 25 GC 24 —
WNG 30 GC 30 OU8 30/33
WNG 36 OU10-36 —
JUNE 2007
REFRIGERANT
R410A COOLING ONLY
R407C
R22
HEAT PUMP

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LIST OF EFFECTIVE PAGES
Revision Y07-04 Service Manual - WNG
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 ........ 15 December 2004
Total number of pages in this publication is 537 consisting of the following:
Page
No.
Revision
No. #
Page
No.
Revision
No. #
Page
No.
Revision
No. #
Title....................... 4
A ........................... 4
i............................. 4
1-1 - 1-7................ 4
2-1 - 2-31.............. 4
3-1 ........................ 4
4-1 - 4-5................ 4
5-1 - 5-116 ............ 4
6-1 - 6-2................ 4
7-1 - ..................... 4
8-1 - 8-8................ 4
9-1 - 9-2................ 4
10-1-10-10............ 4
11-1....................... 4
12-1-12-34............ 4
12a-1-12a-40........ 4
12b-1-12b-17........ 4
13-1-13-2.............. 4
14-1 – 14-144 ....... 4
15-1 – 15-8 ........... 4
Appendix -A...........4
• 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.

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TABLE OF CONTENTS
Revision Y05-03Service Manual - WNG
Table of Contents
1. INTRODUCTION ...................................................................................................1-1
2. PRODUCT DATA SHEET......................................................................................2-1
3. RATING CONDITIONS..........................................................................................3-1
4. OUTLINE DIMENSIONS .......................................................................................4-1
5. PERFORMANCE DATA & PRESSURE CURVES ................................................5-1
6. SOUND LEVEL CHARACTERISTICS ..................................................................6-1
7. ELECTRICAL DATA..............................................................................................7-1
8. WIRING DIAGRAMS .............................................................................................8-1
9. 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. OPTIONAL ACCESSORIES .................................................................................15-1
16. APPENDIX A .........................................................................................................16-1

1-1
INTRODUCTION
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1. INTRODUCTION
1.1 General
The new WNG split wall mounted range comprise the ST (cooling only) and RC (heat
pump) models, as follows:
• Cooling Only WNG 7ST, WNG 9ST, WNG 12ST, WNG 14ST,
WNG 18ST, WNG 21ST, WNG 24ST, WNG 30ST, WNG 36ST
• Heat Pump WNG 7RC, WNG 9RC, WNG 12RC, WNG 14RC,
WNG 18RC, WNG 21RC, WNG 24RC, WNG 30RC,WNG 36RC
The indoor WNG units are available as LED or LCD display types, featuring esthetic
design, compact dimensions, and low noise operation.
Display type models availability:
• LED / LCD Type WNG7, WNG9, WNG12, WNG14, WNG18, WNG21, WNG24
• LCD Type WNG30, WNG36
1.2 Main Features
The WNG series benefits from the most advanced technological innovations, namely:
• R22, R407C and R410A models
• Microprocessor control.
• Infrared remote control with liquid crystal display.
• Supports Indoor Air Quality features, such as – Ionizer, Active Electro-Static Filter,
and Fresh Air.
• Indoor large diameter cross flow fan, allowing low noise level operation.
• Bended indoor coil with treated aluminum fins and coating for improved efficiency.
• High COP.
• 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.
• The WNG18/24/30 are equipped with a flexible corrugated copper suction
tube allowing easy bending by the installer without the necessity to use special
equipment.
• Water condensate tray is equipped with two optional drain connections.
• Automatic treated air sweep.
• Low indoor and outdoor noise levels.
• Easy installation and service.

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INTRODUCTION
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1.3 Indoor Unit
The indoor unit is wall mounted, and can be easily fitted to many types of residential
and commercials applications.
It includes:
• Casing with air inlet and outlet grills.
• A large-diameter tangential fan.
• Bended coil with treated aluminum fins.
• Motorized flaps (dual air sweeping for LCD type)
• Multi-speed motor with internal protection (P.G. motor for LCD type).
• Advanced electronic control box assembly
• Interconnecting wiring terminal block
• Mounting plate
1.4 Filtration
The WNG 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. For further details
please refer to the Operation Manual, Appendix A.

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INTRODUCTION
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Service Manual - WNG
1.7 Outdoor Unit
The WNG 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.
It includes :
• Axial fan.
• Outdoor coil with hydrophilic louver fins for RC units.
• Outlet air fan grill.
• Service valves” flare” type connection.
• Interconnecting wiring terminal block.
• Fresh air motor for WNG 7-14 (optional).
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
ASK (All Season Kit):
For low ambient working conditions in cooling, an ASK can be installed inside the
outdoor unit. This kit allows cooling operation down to outdoor temp of -10 ºC by
gradually controlling the outdoor fan speed motor.
RCW Wall Mounted Remote Control
The RCW remote control is mounted on the wall, and controls the unit either as an
infrared remote control or as a wired controller. The wired controller can control up to
10 Indoor units with the same program settings and adjustments.
For further details please refer to Optional Accessories, Chapter 18.
1.10 Inbox Documentation
Each unit is supplied with its own installation and operation manuals.

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INTRODUCTION
Revision Y05-03 Service Manual - WNG
1.11 Matching Table
1.11.1 R410A
OUTDOOR UNITS
INDOOR UNITS
MODEL REFRIGER. WNG7 WNG9 WNG12 WNG14 K9 K11 K15 PXD9 PXD12 PXD15
ONG7 ST R410A √
ONG9 ST R410A √ √ √
ONG12 ST R410A √ √ √
ONG14 ST R410A √ √ √
ONG7 RC R410A √
ONG9 RC R410A √ √ √*
ONG12 RC R410A √ √
ONG14 RC R410A √* √
OUTDOOR UNITS
INDOOR UNITS
MODEL REF’ WNG18 WNG21 WNG24 WNG30 WNG36 K18 KN24 KN30 PXD18 PXD24 PXD30
GC18 ST R410A √ √ √
GC21 ST R410A √
GC24 ST R410A √ √ √
OU8 30 ST R410A √ √ √
OU10 36 ST R410A √
GC18 RC R410A √ √ √
GC21 RC R410A √
GC24 RC R410A √
OU8 30 RC R410A √
OU10 36 RC R410A √
√* - The outdoor unit of this combination cannot be matched to other indoor units.

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INTRODUCTION
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1.11.2 R407C
OUTDOOR UNITS
INDOOR UNITS
MODEL REF’ WNG7 WNG9 WNG12 WNG14 K9 K11 K15 PXD9 PXD12 PXD15
GCN7 ST R407C √
GCN7 RC R407C √
ONG9 ST R407C √ √ √
ONG12 ST R407C √ √ √
ONG14 ST R407C √ √ √
ONG9 RC R407C √ √ √
ONG12 RC R407C √ √ √
ONG14 RC R407C √ √ √
OUTDOOR UNITS
INDOOR UNITS
MODEL REF’ WMN/Z 7 WMN 14 LS 035 LS 040 WMF 7 WMF 9 WMF 12
GCN7 ST R407C √ √
GCN7 RC R407C √ √ √
ONG9 ST R407C √
ONG12 ST R407C √ √
ONG14 ST R407C √ √
ONG9 RC R407C
ONG12 RC R407C √ √
ONG14 RC R407C √ √
OUTDOOR UNITS
INDOOR UNITS
MODEL REF’ WNG 30 PXD 30 K 30 KN 30 LS 090
OU8 33 ST R407C √ √ √ √ √
OU8 33 RC R407C √ √ √ √ √

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INTRODUCTION
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1.11.3 R22
OUTDOOR UNITS
INDOOR UNITS
MODEL REF’ WNG7 WNG9 WNG12 WNG14 WMN/Z7 WMN/Z9 WMN/Z12 WMF7 WMF9 WMF12
GCN7 ST R22 √* √ √
GCN7 RC R22 √* √ √
GCN9 ST R22 √ √ √
GCN9 RC R22 √* √ √
GCN12 ST R22 √ √ √
GCN12 RC R22 √* √ √
GC14 ST R22 √*
GC14 RC R22 √*
ONG9 ST R22 √*
ONG9 RC R22 √*
ONG12 ST R22 √*
ONG12 RC R22 √*
ONG14 ST R22 √*
ONG14 RC R22 √*
OUTDOOR UNITS
INDOOR UNITS
MODEL REF’ LSO40 PXD9 PXD12 PXD15 K9 K11 K15
GCN9 ST R22 √ √
GCN9 RC R22 √ √
GCN12 ST R22 √
GCN12 RC R22 √
GC14 ST R22 √ √ √
GC14 RC R22 √ √ √
√* - the outdoor unit of this combination cannot be matched to other indoor units.

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OUTDOOR UNITS
INDOOR UNITS
MODEL REF’ WNG24 WNG30 WMN24 K24 K30 PXD24 PXD30 KN24 KN30 LS065 LS090
GC24 ST R22 √ √ √ √ √ √
GC24 RC R22 √ √ √ √ √ √
GC30 ST R22 √ √ √ √
GC30 RC R22 √ √ √ √
OU8 33 ST R22 √ √ √ √ √ √
OU8 33 RC R22 √ √ √ √ √ √
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, floor/ceiling.
For further information please refer to the relevant Service Manual.