Electra DELTA 25 User manual

Delta DCI Series
Indoor Units Outdoor Units
Delta 25 DCR 25 Z
Delta 35 DCR 35 Z
REFRIGERANT
NOVEMBER – 2008
REFRIGERAN
T
REFRIGERANT
R410A HEAT PUMP
SM DELTAZ 1-E.0 GB
CONTENTS

A
LIST OF EFFECTIVE PAGES
SM DELTAZ 1-E.0 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 ........ 20 November 2008
Total number of pages in this publication is 70 consisting of the following:
Page
No.
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No. #
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No. #
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Appendix -A ...........0
•Zero in this column indicates an original page.
CONTENTS

i
TABLE OF CONTENTS
SM DELTAZ 1-E.0 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. 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 DELTAZ 1-E.0 GB
1. INTRODUCTION
1.1 General
The new Delta DC Inverter split wall mounted series comprise RC (heat pump) models,
as follows:
●Delta 25
●Delta 35
The indoor Delta units are available as LED display types only, featuring esthetic design,
compact dimensions, and low noise operation.
1.2 Main Features
The Delta series benefits from the most advanced innovations, namely:
●DC Inverter Technology
●R410A
●Microprocessor control.
●Infrared remote control with liquid crystal display.
●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.
●Pre-Charged units up to the max allowing tubing distance.
●Heating operation at outdoor temperature down to -15ºC
●Advanced test and diagnostics mode.
●M2L diagnostics softwear cable port (for PC)
●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.
●Easy installation and service.
CONTENTS

1-2
INTRODUCTION
SM DELTAZ 1-E.0 GB
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.
●Variable Speed motor (PG).
●Advanced electronic control box assembly.
●Interconnecting wiring terminal block.
●Mounting plate.
1.4 Filtration
The Delta series presents several types of air filters:
●Easily accessible, and re-usable pre-filters (mesh).
●Pre-charged electrostatic filter (optional).
●Active carbon filter (optional).
1.5 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.
1.6 Outdoor Unit
The Delta 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 component.
Single DC Rotary ─For DCR 25Z, DCR 35Z.
●Axial fan.
●Outdoor coil with hydrophilic louver fins.
●Outlet air fan grill.
●Display (3 LED’s).
●2 speed AC motor.
CONTENTS

1-3
INTRODUCTION
SM DELTAZ 1-E.0 GB
1.7 Tubing Connections
Flare type interconnecting tubing to be produced on site.
For further details please refer to the Installation Manual, Outdoor Chapter 9.
1.8 Inbox Documentation
Each unit is supplied with its own installation and operation manuals, one simly remote
control manual.
1.9 Matching Table
INDOOR UNITS
OUTDOOR UNITS
MODEL REFR” Delta 25 Delta 35
DCR 25Z R410A √
DCR 35Z R410A √
CONTENTS

2-1
PRODUCT DATA SHEET
SM DELTAZ 1-E.0 GB
2. PRODUCT DATA SHEET
2.1 Delta 25 / DCR 25Z R410A
Model Indoor Unit DELTA 25 DCI
Model Outdoor Unit DCR 25 Z R410A
Installation Method of Pipe Flared
Characteristics Units Cooling Heating
Capacity (4) Btu/hr 8530(4090-10240) 8530(3410-10910)
kW 2.5(1.2-3.0) 2.5(1.0-3.2)
Power input (4) kW 0.78 0.69
EER (Cooling) or COP(Heating) (4) W/W 3.21 3.61
Energy efficiency class A A
Power supply V/Ph/Hz 220-240V ~1Ph 50/60Hz
Rated current A 3.5 3.1
Starting current A 10.5
Circuit breaker rating A 10
INDOOR
Fan type & quantity Crossflow x 1
Fan speeds H/M/L RPM 1200/1050/850
Air flow (1) H/M/L m3/hr 420/350/270
External static pressure Min-Max Pa 0
Sound power level (2) H/M/L dB(A) 54/50/47
Sound pressure level (3) H/M/L dB(A) 39/35/32
Moisture removal l/hr 1
Condenstate drain tube I.D mm 16
Dimensions WxHxD mm 680x185x250
Weight kg 7
Package dimensions WxHxD mm 740x265x320
Packaged weight kg 10
Units per pallet units 36 units per pallet
Stacking height units 9 levels
OUTDOOR
Refrigerant control Capillary
Compressor type,model Rotary, TOSHIBA DA89X1C-20FZ3
Fan type & quantity Propeller(direct) x 1
Fan speeds H/L RPM 830
Air flow H/L m3/hr 1460
Sound power level H/L dB(A) 65
Sound pressure level (3) H/L dB(A) 55
Dimensions WxHxD mm 760x245x545
Weight kg 31
Package dimensions WxHxD mm 880x310x610
Packaged weight kg 33
Units per pallet Units 12 units per pallet
Stacking height units 3 levels
Refrigerant type R410A
Refrigerant chargless distance kg/m 0.85kg/7.5m
Additional charge per 1 meter g/m L≤10m:+0g 10<L≤15m:+200g
Connections between
units
Liquid line In.(mm) 1/4"(6.35)
Suction line In.(mm) 3/8"(9.53)
Max.tubing length m. Max.15
Max.height difference m. Max. 10
Operation control type Remote control
Heating elements 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 DELTAZ 1-E.0 GB
2.2 Delta 35 / DCR 35 Z R410A
Model Indoor Unit DELTA 35 DCI
Model Outdoor Unit DCR 35 Z R410A
Installation Method of Pipe Flared
Characteristics Units Cooling Heating
Capacity (4) Btu/hr 11940(4100-13640) 11940(4100-13330)
kW 3.5(1.2-4.0) 3.5(1.2-3.9)
Power input (4) kW 1.09 0.97
EER (Cooling) or COP(Heating) (4) W/W 3.21 3.61
Energy efficiency class A A
Power supply V/Ph/Hz 220-240V ~1Ph 50/60Hz
Rated current A 4.9 4.3
Starting current A 10.5
Circuit breaker rating A 15
INDOOR
Fan type & quantity Crossflow x 1
Fan speeds H/M/L RPM 1200/1000/850
Air flow (1) H/M/L m3/hr 550/450/350
External static pressure Min-Max Pa 0
Sound power level (2) H/M/L dB(A) 56/50/46
Sound pressure level (3) H/M/L dB(A) 39/33/29
Moisture removal l/hr 1.5
Condenstate drain tube I.D mm 16
Dimensions WxHxD mm 840x185x250
Weight kg 8
Package dimensions WxHxD mm 930x265x320
Packaged weight kg 11
Units per pallet units 36 units per pallet
Stacking height units 9 levels
OUTDOOR
Refrigerant control Capillary
Compressor type,model Rotary, TOSHIBA DA108X1C-20FZ3
Fan type & quantity Propeller(direct) x 1
Fan speeds H/L RPM 830
Air flow H/L m3/hr 1460
Sound power level H/L dB(A) 66
Sound pressure level (3) H/L dB(A) 56
Dimensions WxHxD mm 760x245x545
Weight kg 32
Package dimensions WxHxD mm 880x310x610
Packaged weight kg 34
Units per pallet Units 12 units per pallet
Stacking height units 3 levels
Refrigerant type R410A
Refrigerant chargless distance kg/m 1.0kg/7.5m
Additional charge per 1 meter g/m L≤10m:+0g 10L≤20m :+200g
Connections between units
Liquid line In.(mm) 1/4"(6.35)
Suction line In.(mm) 3/8"(9.53)
Max.tubing length m. Max.15
Max.height difference m. Max. 10
Operation control type Remote control
Heating elements kW No
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 DELTAZ 1-E.0 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 0oC 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 DELTAZ 1-E.0 GB
4. OUTLINE DIMENSIONS
4.1 Indoor Unit: Delta 25 DCI
4.2 Indoor Unit: Delta 35 DCI
CONTENTS

4-2
OUTLINE DIMENSIONS
SM DELTAZ 1-E.0 GB
4.3 Outdoor Unit: DCR 25 Z, DCR 35 Z DCI
AIR OUTLET
AIR INTAKE
CONTENTS

5-1
PERFORMANCE DATA & PRESSURE CURVES
SM DELTAZ 1-E.0 GB
5. PERFORMANCE DATA
5.1 Delta 25 / DCR 25 Z R410A
5.1.1 Cooling Capacity (kW) – Run Mode
230[V] : Indoor Fan at High Speed.
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
0 - 20
(protection range)
TC 80 - 110 % of nominal
SC 80 - 105 % of nominal
PI 25 - 50 % of nominal
25
TC 2.41 2.57 2.73 2.89 3.05
SC 1.67 1.71 1.74 1.77 1.81
PI 0.59 0.60 0.61 0.62 0.63
30
TC 2.30 2.46 2.62 2.77 2.93
SC 1.63 1.67 1.70 1.73 1.77
PI 0.66 0.67 0.68 0.69 0.70
35
TC 2.18 2.34 2.50 2.66 2.82
SC 1.59 1.63 1.77 1.69 1.73
PI 0.73 0.74 0.78 0.76 0.77
40
TC 2.07 2.23 2.39 2.54 2.70
SC 1.55 1.59 1.62 1.65 1.69
PI 0.80 0.81 0.82 0.83 0.84
46
TC 1.93 2.09 2.25 2.41 2.56
SC 1.50 1.54 1.57 1.61 1.64
PI 0.88 0.89 0.90 0.91 0.92
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 Temperature
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
20 25 30 35 40 45
Outdoor Temperature [deg C]
Capacity Ratio
CONTENTS

5-2
PERFORMANCE DATA & PRESSURE CURVES
SM DELTAZ 1-E.0 GB
5.1.3 Heating Capacity (kW) - Run Mode
230[V] : Indoor Fan at High Speed.
ID COIL ENTERING AIR DB TEMPERATURE [oC]
OD COIL ENTERING
AIR DB/WB
TEMPERATURE [oC]
DATA 15 20 25
-15/-16 TC 1.78 1.66 1.53
PI 0.49 0.54 0.59
-10/-12 TC 1.98 1.86 1.73
PI 0.59 0.64 0.69
-7/-8 TC 2.14 2.01 1.89
PI 0.67 0.72 0.77
-1/-2 TC 2.21 2.09 1.96
PI 0.71 0.76 0.81
2/1 TC 2.26 2.14 2.01
PI 0.73 0.78 0.83
7/6 TC 2.92 2.50 2.68
PI 0.77 0.69 0.87
10/9 TC 3.09 2.96 2.84
PI 0.82 0.87 0.92
15/12 TC 3.25 3.12 3.00
PI 0.86 0.91 0.96
15-24 TC 85 - 105 % of nominal
(Protection Range) PI 80 - 120 % of nominal
LEGEND
TC – 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
Heating Capacity Ratio Vs. Outdoor Temperature
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 [deg C]
Capacity Ration
CONTENTS

5-3
PERFORMANCE DATA & PRESSURE CURVES
SM DELTAZ 1-E.0 GB
5.2 Delta 35 / DCR 35 Z R410A
5.2.1 Cooling Capacity (kW) – Run Mode
230[V] : Indoor Fan at High Speed.
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
-10 - 20
(protection range)
TC 80 - 110 % of nominal
SC 80 - 105 % of nominal
PI 25 - 50 % of nominal
25
TC 3.38 3.60 3.82 4.04 4.26
SC 2.54 2.59 2.64 2.69 2.74
PI 0.81 0.83 0.84 0.86 0.87
30
TC 3.22 3.44 3.66 3.88 4.10
SC 2.48 2.53 2.58 2.63 2.68
PI 0.90 0.92 0.94 0.95 0.97
35
TC 3.06 3.28 3.50 3.72 3.94
SC 2.42 2.47 2.58 2.57 2.62
PI 1.00 1.01 1.09 1.05 1.06
40
TC 2.90 3.12 3.34 3.56 3.78
SC 2.36 2.41 2.46 2.51 2.56
PI 1.09 1.11 1.12 1.14 1.16
46
TC 2.70 2.92 3.15 3.37 3.59
SC 2.28 2.34 2.39 2.44 2.49
PI 1.21 1.22 1.24 1.25 1.27
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 Ratio 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 Temperature [deg C]
Capacity Ratio
CONTENTS

5-4
PERFORMANCE DATA & PRESSURE CURVES
SM DELTAZ 1-E.0 GB
5.2.3 Heating Capacity (kW) - Run Mode
230[V] : Indoor Fan at High Speed.
ID COIL ENTERING AIR DB TEMPERATURE [oC]
OD COIL
ENTERING
AIR DB/WB
TEMPERATURE
[oC]
DATA 15 20 25
-15/-16 TC 2.29 2.13 1.97
PI 0.63 0.69 0.76
-10/-12 TC 2.55 2.39 2.23
PI 0.76 0.82 0.89
-7/-8 TC 2.75 2.58 2.42
PI 0.86 0.92 0.98
-1/-2 TC 2.84 2.68 2.52
PI 0.91 0.97 1.03
2/1 TC 2.91 2.75 2.59
PI 0.94 1.00 1.07
7/6 TC 3.76 3.50 3.44
PI 0.99 0.97 1.11
10/9 TC 3.97 3.81 3.65
PI 1.04 1.11 1.17
15/12 TC 4.17 4.01 3.85
PI 1.10 1.17 1.23
15-24 TC 85 - 105 % of nominal
(Protection Range) PI 80 - 120 % of nominal
LEGEND
TC – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (oC)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OU – Outdoor
5.2.4 Capacity Correction Factors
Heating Capacity Ratio Vs. Outdoor Temperature
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 [deg C]
Capacity Ration
CONTENTS

5-5
PERFORMANCE DATA & PRESSURE CURVES
SM DELTAZ 1-E.0 GB
5.3 Capacity Correction Factor Due to Tubing Length
5.3.1 Delta 25 DCI : Cooling
5.3.2 Heating
0.75
0.80
0.85
0.90
0.95
1.00
1.025
3 5 7 9 11 13 15
Tubing Length[m]
Capacity Ratio
0.75
0.80
0.85
0.90
0.95
1.00
1.025
3 5 7 9 11 13 15
Tubing Length[m]
Capacity Ratio
CONTENTS

5-6
PERFORMANCE DATA & PRESSURE CURVES
SM DELTAZ 1-E.0 GB
5.3.3 Delta 35 DCI : Cooling
5.3.4 Heating
0.80
0.84
0.88
0.90
0.92
0.94
0.96
0.98
1.00
1.025
3 5 7 9 11 13 15
Tubing Length[m]
Capacity Ratio
0.90
0.92
0.94
0.95
0.96
0.97
0.98
0.99
1.00
1.01
3 5 7 9 11 13 15
Tubing Length[m]
Capacity Ratio
CONTENTS

5-7
PERFORMANCE DATA & PRESSURE CURVES
SM DELTAZ 1-E.0 GB
5.4 PRESSURE CURVES
5.4.1 DELTA 25 / DCR 25 Z R410A
5.4.1.1 Cooling => Test Mode
Suction Pressure VS.Outdoor Temp.
400
500
600
700
800
900
1000
1100
1200
10 15 20 25 30 35 40 45
Outdoor DB Temperature
Suction Pressure[kPa]
21/15 DB/WB
24/17 DB/WB
27/19 DB/WB
29/21 DB/WB
32/23 DB/WB
Discharge Pressure VS. Outdoor Temp.
1000
1250
1500
1750
2000
2250
2500
2750
3000
3250
3500
3750
4000
10 15 20 25 30 35 40 45
Outdoor DB Temperature
Discharge Pressure [kPa]
21/15 DB/WB
24/17 DB/WB
27/19 DB/WB
29/21 DB/WB
32/23 DB/WB
CONTENTS

5-8
PERFORMANCE DATA & PRESSURE CURVES
SM DELTAZ 1-E.0 GB
5.4.1.2 Heating => Test Mode
Suction Pressure VS. Outdoor Temp.
200
300
400
500
600
700
800
900
1000
5101505-01-51-
Outdoor WB Temperature
Suction Pressure [kPa]
15 DB
20 DB
25 DB
Discharge Pressure VS. Outdoor Temp.
1100
1350
1600
1850
2100
2350
2600
2850
3100
3350
-15 -10 -5 0 5 10 15
Outdoor WB Temperature
15 DB
20 DB
25 DB
CONTENTS

5-9
PERFORMANCE DATA & PRESSURE CURVES
SM DELTAZ 1-E.0 GB
5.4.2 DELTA 35 / DCR 35 Z R410A
5.4.2.1 Cooling => Test Mode
Suction Pressure VS. Outdoor Temp.
400
500
600
700
800
900
1000
11 0 0
1200
10 15 20 25 30 35 40 45
Outdoor DB Temperature
21/15 DB/WB
24/17 DB/WB
27/19 DB/WB
29/21 DB/WB
32/23 DB/WB
Discharge Pressure VS. OutdoorTe m p.
1000
1250
1500
1750
2000
2250
2500
2750
3000
3250
3500
3750
4000
10 15 20 25 30 35 40 45
Outdoor DB Temperature
Discharge Pressure [kPa]
21/15 DB/WB
24/17 DB/WB
27/19 DB/WB
29/21 DB/WB
32/23 DB/WB
Suction Pressure [kPa]
CONTENTS