Electra LEX 25 DCI User manual

LEX DCI Series
Indoor Units Outdoor Units
LEX 25 DCI DCI 25
LEX 35 DCI DCI 35
LEX 50 DCI DCI 50
LEX 60 DCI DCI 60
LEX 72 DCI DCI 72Z
NOVEMBER – 2008
REFRIGERANT
R410A HEAT PUMP
SM LEXDCI 1-E.1 GB
CONTENTS

A
LIST OF EFFECTIVE PAGES
SM LEXDCI 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 ........September 2007
Total number of pages in this publication is 107 consisting of the following:
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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 LEXDCI 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 & PRESSURE CURVES ...............................................5-1
6. SOUND LEVEL CHARACTERISTICS ..................................................................6-1
7. ELECTRICAL DATA..............................................................................................7-1
8. WIRING DIAGRAMS .............................................................................................8-1
9. REFRIGERATION DIAGRAMS.............................................................................9-1
10. ELECTRICAL CONNECTIONS.............................................................................10-1
11. CONTROL SYSTEM for LEX 25 / 35 DCI ............................................................11-1
12. CONTROL SYSTEM for LEX 50 / 60 / 72 Z DCI ..................................................12-1
13. TROUBLESHOOTING ..........................................................................................13-1
14. EXPLODED VIEWS AND SPARE PARTS LISTS.................................................14-1
15. TUBING CONNECTIONS......................................................................................15-1
16. APPENDIX A .........................................................................................................16-1

1-1
INTRODUCTION
SM LEXDCI 1-E.1 GB
1. INTRODUCTION
1.1 General
The new LEX DCI INVERTER split wall mounted range has expanded, comprising the
following RC (heat pump) models:
● LEX 25 DCI
● LEX 35 DCI
●LEX 50 DCI
●LEX 60 DCI
● LEX 72 DCI
The indoor LEX units are available as LED display types, featuring esthetic design,
compact dimensions, and low noise operation.
1.2 Main Features
The LEX DCI 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 and 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 LEXDCI 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.
New design is available in LED version.
Indoor Unit features:
Feature LEX 25 DCI LEX 35 DCI LEX 50 DCI LEX 60 DCI LEX 72 DCI
Display LED
Ionizer Optional
ESF Optional
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 LEX 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, provides 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.
CONTENTS

1-3
INTRODUCTION
SM LEXDCI 1-E.1 GB
1.7 Outdoor Unit
The 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 from 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 25 DCI 35 DCI 50 DCI 60 DCI 72Z
Display 3 LED’s
Base Heater Optional
Outdoor Fan Variable speed DC Inverter
1.8 Tubing Connections
Flare type interconnecting tubing to be produced on site.
For further details please refer to the Installation Manual.
1.9 Accessories
Item Description
MIU (LEX) 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.
CONTENTS

1-4
INTRODUCTION
SM LEXDCI 1-E.1 GB
1.11 Matching Table
1.11.1 R410A
OUTDOOR UNITS
INDOOR UNITS
MODEL REFR” LEX 25 LEX 35 LEX 50 LEX 60 LEX 72
DCI 25 R410A √
DCI 35 R410A √
DCI 50 R410A √
DCI 60 R410A √
DCI 72Z R410A √
CONTENTS

2-1
PRODUCT DATA SHEET
SM LEXDCI 1-E.1 GB
2. PRODUCT DATA SHEET
2.1 LEX 25 DCI
Model Indoor Unit LEX 25 DCI
Model Outdoor Unit DCI 25 R410A
Installation Method of Pipe Flared
Characteristics Units Cooling Heating
Capacity (1) Btu/hr 8530(4780-12280) 11600(5120-17060)
kW 2.5(1.4-3.6) 3.4(1.5-5.0)
Power input (1) kW 0.595(0.42-1.0) 0.81(0.39-1.6)
EER (Cooling) or COP(Heating) (1) 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 (2) H/M/L m3/hr 530/430/330
External static pressure Min Pa 0
Sound power level (3) H/M/L dB(A) 51/ - /39
Sound pressure level (4) H/M/L dB(A) 39/ - /26
Moisture removal l/hr 1
Condenstate drain tube I.D mm 16
Dimensions WxHxD mm 810x285x210
Net Weight kg 11.5
Package dimensions WxHxD mm 870x356x282
Packaged weight kg 14
Units per pallet units 28
Stacking height units 7 levels
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 (4) 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) 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.
CONTENTS

2-2
PRODUCT DATA SHEET
SM LEXDCI 1-E.1 GB
2.2 LEX 35 DCI
Model Indoor Unit LEX 35 DCI
Model Outdoor Unit DCI 35 R410A
Installation Method of Pipe Flared
Characteristics Units Cooling Heating
Capacity (1) Btu/hr 11940(4780-14670) 14670(5100-19790)
kW 3.5(1.4-4.3) 4.3(1.5-5.8)
Power input (1) kW 0.99(0.42-1.25) 1.125(0.39-1.75)
EER (Cooling) or COP (Heating) (1) 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 (2) H/M/L m3/hr 550/450/350
External static pressure Min Pa 0
Sound power level (3) H/M/L dB(A) 52/ - /39
Sound pressure level (4) H/M/L dB(A) 40/ - /26
Moisture removal l/hr 1.5
Condenstate drain tube I.D mm 16
Dimensions WxHxD mm 810x285x210
Net Weight kg 11.5
Package dimensions WxHxD mm 870x356x282
Packaged weight kg 14
Units per pallet units 28
Stacking height units 7 levels
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 (4) 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 g/m 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) 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.
CONTENTS

2-3
PRODUCT DATA SHEET
SM LEXDCI 1-E.1 GB
(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.
2.3 LEX 50 DCI
Model Indoor Unit LEX 50 DCI
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 A A
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
CONTENTS