Electra DNG DC Series User manual

DNG DC Inverter Series
Indoor Units Outdoor Units
DNG 50 DCI DCI 50
DNG 60 DCI DCI 60
DNG 72 DCI DCI 72
DCI 72Z
DNG 80 DCI DCI 80
APRIL 2007
REFRIGERANT
R410A HEAT PUMP
CONTENT

A
LIST OF EFFECTIVE PAGES
Revision Y07-02 Service Manual - DNG 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 ........ July 2006
Total number of pages in this publication is 122 consisting of the following:
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•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
Revision Y07-02
Service Manual - DNG DCI
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. AIRFLOW CURVES ..............................................................................................6-1
7. SOUND LEVEL CHARACTERISTICS ..................................................................7-1
8. ELECTRICAL DATA..............................................................................................8-1
9. WIRING DIAGRAMS .............................................................................................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

1-1
INTRODUCTION
Revision Y07-02Service Manual - DNG DCI
1. INTRODUCTION
1.1 General
The DNG DCI ducted split unit range comprises the following RC (heat pump) models
•DNG 50
•DNG 60
•DNG 72
•DNG 80
Remote control compatibility
•The DNG unit is compatible with remote controls RC3, RC4, RCW1, RCW2.
1.2 Main Features
The DNG DCI series benefits from the most advanced technological innovations,
namely:
•DC inverter technology.
•R410A.
•High COP.
•Pre-Charged units up to the max’ allowing tubing distance.
•A dry contract for presence detector or power shedding.
•Cooling operation at outdoor temperature down to -10°C.
•Heating operation at outdoor temperature down to -15°C.
•High Static Pressure in silhouette ducted unit
•Low silhouette 260-300mm height that simpify the false ceiling construction.
•Small volume ,easy for installation(require small space for installation).
•Built in over-flow protection against the condensate wate.
•Low indoor and outdoor noise levels.
•Water condensate tray is equipped with two optional drain connections.
•Microprocessor control.
•Infrared remote control with liquid crystal displa.
•Easy installation and service.
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INTRODUCTION
Revision Y07-02 Service Manual - DNG DCI
1.3 Indoor Unit
The indoor unit is a low silhouette ducted unit, and can be easily fitted to many types of
residential and commercials applications.
It includes:
•High technology plastic fan and fan housing.
•A drain pool that is under the entire unit with internal downward slope.
•An over-flow switch, stops compressor operation in case of is blocked drainage.
•A bended coil with treated aluminium fins.
•3-speed fan motor an extra speed in case a higher external static pressure isneed-
ed.
•Advanced electronic control box assembly.
•All the tubing connections are in the back of the unit to allow easy outlet to left or right
side of the unit.
•Field options:
(1) External water pump
(2) Airconet connection
(3) Plenum kit for connection of flexible hoses at air outlet.
1.4 Filtration
•The unit is equipped with pre filters.
•Easy and versatile access, rear or bottom, can be easily adjusted by the instaler.
1.5 Ionizer (Optional)
A special design Ioniser 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
Revision Y07-02Service Manual - DNG DCI
1.7 Outdoor Unit
The DNG 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.
It includes:
•Compressor mounted in a soundproofed compartment :
Scroll – for DNG 50, 60
Dual Rotary – for DNG 72, 80
•Improved 3- blades axial fans for noise reduction.
•Fan grill air outlet.
•Service valves ”flare” type connection.
•Service ports for high/ low pressure measurement.
•Advanced controller.
•Outdoor coil with hydrophilic louver fins.
Feature DCI50, 60,72, 72Z, 80
Diagnostics Display 3 LED`s
Outdoor Fan Veriable speed DC Inverter
M2L cable Port No
1.8 Tubing Connections
Flare type-interconnecting tubing to be produced on site.
All the units from 7KW and up can be installed with 50-meter tubing length and 25-meter
height difference without oil traps.
For further details, please refer to the Installation Manual, Appendix A.
1.9 Accessories
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 the Technical Service Manual.
1.10 Inbox Documentation
Each unit includes its own installation and operation manuals.
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INTRODUCTION
Revision Y07-02 Service Manual - DNG DCI
1.11 Matching Table
1.11.1 R410A
OUTDOOR UNITS
INDOOR UNITS
MODEL REFRIGER.DNG 50 DCI DNG 60 DCI DNG 72 DCI DNG 80 DCI
DCI 50 R410A √
DCI 60 R410A √
DCI 72
DCI 72Z R410A √
DCI 80 R410A √
The above table lists outdoor units and DNG/DCI indoor units which can be matched together.
In addition the listed outdoor units can be matched with other types of indoor units such ascassettes,
floor/ceiling.
For further information please refer to the relevant Service Manual.
CONTENT

2-1
PRODUCT DATA SHEET
Revision Y07-02Service Manual - DNG DCI
2. PRODUCT DATA SHEET
2.1 DNG50 DCI
Model Indoor Unit DNG 50 DCI
Model Outdoor Unit DCI 50 R410A
Installation Method of Pipe Flared
Characteristics Units Cooling Heating
Capacity (1) Btu/hr 17060(5460-21840) 20470(4780-26270)
kW 5.0(1.6 - 6.4) 6.0(1.4 - 7.7)
Power input (1) kW 1.55(0.5- 2.2) 1.6(0.4- 2.0)
EER (Cooling) or COP(Heating) (1) W/W 3.23 3.75
Energy efficiency class A A
Power supply V/Ph/Hz 220-240V/Single/50Hz
Rated current A 6.7 7.0
Starting current A 15
Circuit breaker rating A 20
INDOOR
Fan type & quantity Centrifugal x 1
Fan speeds H/M/L RPM 630/530/425
Air flow (2) H/M/L m3/hr 1170/920/730
External static pressure Min-Max Pa 25-60
Sound power level (3) H/M/L dB(A) 55/53/50
Sound pressure level (4) H/M/L dB(A) 42/37/34
Moisture removal l/hr 1.0
Condensate drain tube I.D mm 19
Dimensions WxHxD mm 790x256x749
Weight kg 29
Package dimensions WxHxD mm 959x315x854
Packaged weight kg 31
Units per pallet units 6
Stacking height units 6
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(3) 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 charge(standard connecting
tubing length) Kg(m) 1.50
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. 15
Operation control type Remote control
Heating elements kW
Others
(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units).
(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 1.4 meter distance from unit.
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PRODUCT DATA SHEET
Revision Y07-02 Service Manual - DNG DCI
2.2 DNG60 DCI
Model Indoor Unit DNG 60 DCI
Model Outdoor Unit DCI 60 R410A
Installation Method of Pipe Flared
Characteristics Units Cooling Heating
Capacity (1) Btu/hr 19110(5460-22520) 22520(6140-
27300)
kW 5.6 (1.6 - 6.6) 6.6 (1.8 - 8.0)
Power input (1) kW 1.86(0.5 - 2.25) 1.80 (0.5 - 2.08)
EER (Cooling) or COP(Heating) (1) W/W 3.01 3.74
Energy efficiency class B A
Power supply V/Ph/Hz 220-240V/Single/50Hz
Rated current A 8.1 7.8
Starting current A 15
Circuit breaker rating A 20
INDOOR
Fan type & quantity Centrifugal x 1
Fan speeds H/M/L RPM 680/530/425
Air flow (2) H/M/L m3/hr 1210/875/730
External static pressure Min-Max Pa 25-60
Sound power level (3) H/M/L dB(A) 60/53/50
Sound pressure level (4) H/M/L dB(A) 43/37/34
Moisture removal l/hr 1.24
Condensate drain tube I.D mm 19
Dimensions WxHxD mm 790x250x749
Weight kg 29
Package dimensions WxHxD mm 959x315x854
Packaged weight kg 31
Units per pallet units 6
Stacking height units 6
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(3) 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 charge(standard connecting
tubing length) Kg(7.5m) 1.65
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. 15
Operation control type Remote control
Heating elements kW
Others
(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units).
(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 1.4 meter distance from unit.
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PRODUCT DATA SHEET
Revision Y07-02Service Manual - DNG DCI
2.3 DNG72 DCI
Model Indoor Unit DNG 72 DCI
Model Outdoor Unit DCI 72 R410A
Installation Method of Pipe Flared
Characteristics Units Cooling Heating
Capacity (1) Btu/hr 23200(5460-27300) 25930(6140-30030)
kW 6.8(1.6-8.0) 7.6(1.8-8.8)
Power input (1) kW 2.26(0.55 - 2.68) 2.08(0.5 - 2.5)
EER (Cooling) or COP(Heating) (1) W/W 3.01 3.65
Energy efficiency class B A
Power supply V/Ph/Hz 220-240V/Single/50Hz
Rated current A 9.8 9.0
Starting current A 15
Circuit breaker rating A 20
INDOOR
Fan type & quantity Centrifugal x 1
Fan speeds H/M/L RPM 800/670/550
Air flow (2) H/M/L m3/hr 1320/1150/935
External static pressure Min-Max Pa 25-60
Sound power level (3) H/M/L dB(A) 65/60/55
Sound pressure level (4) H/M/L dB(A) 47/43/38
Moisture removal l/hr 1.53
Condensate drain tube I.D mm 19
Dimensions WxHxD mm 790x256x749
Weight kg 29
Package dimensions WxHxD mm 959x315x854
Packaged weight kg 31
Units per pallet units 6
Stacking height units 6
OUTDOOR
Refrigerant control EEV
Compressor type, model Two Rotary, 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 950x835x412
Weight kg 65.5
Package dimensions WxHxD mm 1080x910x477
Packaged weight kg 73
Units per pallet Units 2
Stacking height units 2 levels
Refrigerant type R410A
Refrigerant charge (standard connecting
tubing length) kg(7.5m) 2.4
Additional charge (tubing length 30-50m) Kg 1.8
Connections between units
Liquid line In.(mm) 3/8”(9.53)
Suction line In.(mm) 5/8”(15.88)
Max.tubing
length m. Max.50
Max.height
difference m. Max.25
Operation control type Remote control
Heating elements kW
Others
(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units).
(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 1.4 meter distance from unit.
CONTENT