Electra Delta 25, Delta 35 Service Manual

Delta DCI Series

CONTENTS

Indoor Units Outdoor Units

Delta 25 DCR 25 Z

Delta 35 DCR 35 Z

REFRIGERANT

REFRIGERAN

SM DELTAZ 1-E.0 GB

R410A

HEAT PUMP

NOVEMBER – 2008

LIST OF EFFECTIVE PAGES

CONTENTS

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:

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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

SM DELTAZ 1-E.0 GB

1. INTRODUCTION

CONTENTS

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:

INTRODUCTION

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.

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1-1

INTRODUCTION

CONTENTS

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.

1-2

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.

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1.7 Tubing Connections

CONTENTS

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

OUTDOOR UNITS

INTRODUCTION

INDOOR UNITS

MODEL REFR” Delta 25 Delta 35

DCR 25Z R410A

DCR 35Z R410A

√

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1-3

2. PRODUCT DATA SHEET

CONTENTS

2.1 Delta 25 / DCR 25Z R410A

PRODUCT DATA SHEET

Model Indoor Unit Model Outdoor Unit

DELTA 25 DCI

DCR 25 Z R410A

Installation Method of Pipe Flared Characteristics Units Cooling Heating

Capacity

Power input

(4)

EER (Cooling) or COP(Heating)

(4)

Btu/hr 8530(4090-10240) 8530(3410-10910)

kW 2.5(1.2-3.0) 2.5(1.0-3.2) kW 0.78 0.69

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

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)

Sound pressure level

(3)

H/M/L dB(A) 54/50/47

H/M/L dB(A) 39/35/32 Moisture removal l/hr 1 Condenstate drain tube I.D mm 16

INDOOR

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 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

OUTDOOR

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

Liquid line In.(mm) 1/4"(6.35)

Connections between units

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).

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2-1

PRODUCT DATA SHEET

CONTENTS

2.2 Delta 35 / DCR 35 Z R410A

Model Indoor Unit

Model Outdoor Unit

DELTA 35 DCI

DCR 35 Z R410A

Installation Method of Pipe Flared Characteristics Units Cooling Heating

Capacity

Power input

(4)

EER (Cooling) or COP(Heating)

(4)

Btu/hr 11940(4100-13640) 11940(4100-13330)

kW 3.5(1.2-4.0) 3.5(1.2-3.9) kW 1.09 0.97

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

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)

Sound pressure level

(3)

H/M/L dB(A) 56/50/46

H/M/L dB(A) 39/33/29 Moisture removal l/hr 1.5 Condenstate drain tube I.D mm 16

INDOOR

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 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

OUTDOOR

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

Liquid line In.(mm) 1/4"(6.35)

Connections between units

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)

(2)

(3)

(4)

2-2

Airflow in ducted units; at nominal external static pressure. Sound power in ducted units is measured at air discharge. Sound pressure level measured at 1-meter distance from unit. Rating conditions in accordance to ISO 5151 and ISO 13253 (for ducted units).

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3. RATING CONDITIONS

CONTENTS

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

RATING CONDITIONS

Cooling

Heating

Upper limit

Lower limit

Upper limit

Lower limit

Voltage

Indoor Outdoor

32oC DB 23oC WB 46oC DB

21oC DB 15oC WB 0oC DB

27oC DB 24oC DB 18oC WB

10oC DB -15oC DB -16oC WB

198 – 264 V

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3-1

4. OUTLINE DIMENSIONS

CONTENTS

4.1 Indoor Unit: Delta 25 DCI

OUTLINE DIMENSIONS

4.2

Indoor Unit: Delta 35 DCI

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4-1

OUTLINE DIMENSIONS

CONTENTS

4.3 Outdoor Unit: DCR 25 Z, DCR 35 Z DCI

AIR INTAKE

AIR OUTLET

4-2

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PERFORMANCE DATA & PRESSURE CURVES

CONTENTS

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.

OD COIL

ENTERING AIR DB

TEMPERATURE [

0 - 20

(protection range)

ID COIL ENTERING AIR DB/WB TEMPERATURE [

DATA

22/15 24/17 27/19 29/21 32/23

TC 80 - 110 % of nominal SC 80 - 105 % of nominal

2.41 2.57 2.73 2.89 3.05

25 - 50 % of nominal

SC 1.67 1.71 1.74 1.77 1.81

PI 0.59 0.60 0.61 0.62 0.63 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 TC 2.18 2.34

0.68

2.50

0.69 0.70

2.66 2.82

SC 1.59 1.63 1.77 1.69 1.73

PI 0.73 0.74 TC 2.07 2.23

0.78

2.39

0.76 0.77

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 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., ( DB – Dry Bulb Temp., (

C) ID – Indoor OD – Outdoor

5.1.2 Capacity Correction Factors

Cooling Capacity Ratio Vs. Outdoor Temperature

1.20

1.10

1.00

0.90

0.80

0.70

Capacit y Ratio

0.60

0.50

20 25 30 35 40 45

Outdoor Temperature [deg C]

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5-1

PERFORMANCE DATA & PRESSURE CURVES

CONTENTS

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 [

DATA

15 20 25

-15/-16

-10/-12

-7/-8

-1/-2

2/1

7/6

10/9

15/12

15-24

(Protection Range)

TC 1.78 1.66 1.53

PI 0.49 0.54 0.59

TC 1.98 1.86 1.73

PI 0.59 0.64 0.69

TC 2.14 2.01 1.89

PI 0.67 0.72 0.77

TC 2.21 2.09 1.96

PI 0.71 0.76 0.81

TC 2.26 2.14 2.01

PI 0.73

TC 2.92

PI 0.77

TC 3.09

PI 0.82 0.87 0.92

TC 3.25 3.12 3.00

PI 0.86 0.91 0.96

TC 85 - 105 % of nominal

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

0.78

2.50

0.69

2.96

0.83

2.68

0.87

2.84

5.1.4 Capacity Correction Factors

5-2

Heating Capacity Ratio Vs. Outdoor Temperature

1.20

1.10

1.00

0.90

0.80

0.70

Capacit y Ration

0.60

0.50

-15 -10 -5 0 5 10 15

Outdoor WB Temperature [deg C]

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PERFORMANCE DATA & PRESSURE CURVES

CONTENTS

5.2 Delta 35 / DCR 35 Z R410A

5.2.1 Cooling Capacity (kW) – Run Mode

230[V] : Indoor Fan at High Speed.

OD COIL

ENTERING AIR DB

TEMPERATURE [

-10 - 20

(protection range)

ID COIL ENTERING AIR DB/WB TEMPERATURE [

DATA

22/15 24/17 27/19 29/21 32/23

TC 80 - 110 % of nominal SC 80 - 105 % of nominal

3.38 3.60 3.82 4.04 4.26

25 - 50 % of nominal

SC 2.54 2.59 2.64 2.69 2.74

PI 0.81 0.83 0.84 0.86 0.87 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 TC 3.06 3.28

0.94

3.50

0.95 0.97

3.72 3.94

SC 2.42 2.47 2.58 2.57 2.62

PI 1.00 1.01 TC 2.90 3.12

1.09

3.34

1.05 1.06

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 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

1.20

1.10

1.00

0.90

0.80

0.70

Capacit y Ratio

0.60

0.50

20 25 30 35 40 45

Outdoor Temperature [deg C]

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5-3

PERFORMANCE DATA & PRESSURE CURVES

CONTENTS

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

[

DATA

15 20 25

-15/-16

-10/-12

-7/-8

-1/-2

2/1

7/6

10/9

15/12

15-24

(Protection Range)

PI 0.63 0.69 0.76

TC 2.55 2.39 2.23

PI 0.76 0.82 0.89

TC 2.75 2.58 2.42

PI 0.86 0.92 0.98

TC 2.84 2.68 2.52

PI 0.91 0.97 1.03

TC 2.91 2.75 2.59

PI 0.94

TC 3.76

PI 0.99

TC 3.97

PI 1.04 1.11 1.17

TC 4.17 4.01 3.85

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

2.29 2.13 1.97

1.00

3.50

0.97

3.81

1.07

3.44

1.11

3.65

1.10 1.17 1.23 85 - 105 % of nominal

5.2.4 Capacity Correction Factors

5-4

Heating Capacity Ratio Vs. Outdoor Temperature

1.20

1.10

1.00

0.90

0.80

0.70

Capacit y Ration

0.60

0.50

-15 -10 -5 0 5 10 15

Outdoor WB Temperature [deg C]

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PERFORMANCE DATA & PRESSURE CURVES

CONTENTS

5.3 Capacity Correction Factor Due to Tubing Length

5.3.1 Delta 25 DCI : Cooling

1.025

1.00

0.95

0.90

0.85

Capacity Ratio

0.80

0.75 3 5 7 9 11 13 15

Tubing Length[m ]

5.3.2 Heating

1.025

1.00

0.95

0.90

0.85

Capacity Ratio

0.80

0.75 3 5 7 9 11 13 15

Tubing Length[m ]

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5-5

PERFORMANCE DATA & PRESSURE CURVES

CONTENTS

5.3.3 Delta 35 DCI : Cooling

1.025

1.00

0.98

0.96

0.94

0.92

0.90

0.88

Capacity Ratio

0.84

0.80 3 5 7 9 11 13 15

Tubing Length[m ]

5.3.4 Heating

1.01

1.00

0.99

0.98

0.97

0.96

0.95

0.94

Capacity Ratio

0.92

0.90 3 5 7 9 11 13 15

Tubing Length[m ]

5-6

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+ 38 hidden pages

Electra Delta 25, Delta 35 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

LIST OF EFFECTIVE PAGES

TABLE OF CONTENTS

INTRODUCTION

PRODUCT DATA SHEET

RATING CONDITIONS

OUTLINE DIMENSIONS

PERFORMANCE DATA & PRESSURE CURVES