Electra DELTA 18ST Manuel utilisateur

DELTA 18-21-24

Indoor Units Outdoor Units

DELTA 18 GC 18

DELTA 21 GC 22

DELTA 24 OU7-24

OU7-24Z

Service Manual

SM DELTA 1-E.0 GB JUNE – 2010

REFRIGERANT

R410A HEAT PUMP

COOLING ONLY

LIST OF EFFECTIVE PAGES

SM DELTA 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 ........ JUNE 2010

Total number of pages in this publication is 93 consisting of the following:

Page

No.

Revision

No. #

Page

No.

Revision

No. #

Page

No.

Revision

No. #

Title ....................... 0

A ........................... 0

i............................. 0

1-1 - 1-3 ................ 0

2-1 - 2-5 ................ 0

3-1 ........................ 0

4-1 - 4-2 ................ 0

5-1 - 5-12 .............. 0

6-1 - 6-5 ................ 0

7-1 ........................ 0

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12-1-12-34 ............ 0

13-1-13-2 .............. 0

14-1-14-24 ............ 0

15-1-15-7 .............. 0

Appendix -A ...........0

• 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

TABLE OF CONTENTS

SM DELTA 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. 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

SM DELTA 1-E.0 GB

1. INTRODUCTION

1.1 General

The new DELTA split wall mounted is based on the compact range. It comprise the ST

(cooling only) and RC (heat pump) models, as follows:

Cooling Only:• DELTA 18ST, DELTA 21ST, DELTA 24ST

Heat Pump:• DELTA 18RC, DELTA 21RC, DELTA 24RC

The indoor DELTA units are available as LED display types, featuring esthetic design,

compact dimensions, and low noise operation.

1.2 Main Features

The DELTA series benefits from the most advanced technological innovations, namely:

 R410A refrigerant

 Micro processor control.

 Infrared remote control with LED display.

 Indoor large diameter cross flow fan, allowing low operation sound level.

 Bended Indoor coil with treated aluminum fins and coating for improved efficiency.

 High COP.

 Easy access to the interconnecting tubing and wiring connections.

 Refrigerant pipes can be connected to the indoor unit from 5 different optional

directions.

 The units are equipped.

 Water condensate tray is equipped with two optional drain connections.

Automatic treated air sweep.

 Low indoor noise levels.

 Easy installation and service.

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.

 3-speed motor with internal protection.

 Advanced electronic control box assembly.

 Interconnecting wiring terminal block.

 Mounting plate.

1-2

INTRODUCTION

SM DELTA 1-E.0 GB

1.4 Filtration

The DELTA series presents several types of air filters:

 Easily accessible, and re-usable pre-filters (mesh).

 Pre-charged electrostatic filter (diposable).

 Active carbon filter (optional).

Active Electro Static re-usable 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 :

 Axial fan.

 Outdoor coil with hydrophilic louver fins for RC units.

 Compressor mounted in a soundproofed compartment.

 Outlet air fan grill.

 Service valves” flare” type connection.

 Interconnecting wiring terminal block.

1.7 Tubing Connections

Flare type interconnecting tubing can be produced on site.

For further details please refer to the Installation Manual, Chapter 11.

1.8 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 15.

1.9 Inbox Documentation

Each unit is supplied with its own installation and operation manuals.

1-3

INTRODUCTION

SM DELTA 1-E.0 GB

1.10 Matching Table

1.10.1 R410A

OUTDOOR UNITS

INDOOR UNITS

MODEL REFRIGER. DELTA 18 DELTA 21 DELTA 24

GC 18 ST/RC R410A 

GC 22 ST/RC R410A 

GC 24 ST/RC R410A 

OU7-24 R410A 

OU7-24Z R410A 

The above table lists outdoor units and DELTA 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.

2-1

PRODUCT DATA SHEET

SM DELTA 1-E.0 GB

2. PRODUCT DATA SHEET

2.1 DELTA 18 / GC 18 R410A

Model Indoor Unit DELTA- 18

Model Outdoor Unit GC-18

Installation Method of Pipe Flared

Characteristics Units Cooling Only Cooling Heating

Capacity (4) Btu/hr 18250 18250 18420

kW 5.35 5.35 5.40

Power input (4) kW 1.66 1.66 1.56

EER (Cooling) or COP(Heating) (4) W/W 3.22 3.22 3.46

Energy efficiency class A A B

Power supply V/Hz/Ph 220-240V/50Hz/Single

Rated current A 7.5 7 7.1

Starting current A 43

Circuit breaker rating A 15

INDOOR

Fan type & quantity Cross flow*1

Fan speeds H/M/L RPM 1200/1100/1000

Air flow (1) H/M/L m3/hr 930/840/750

External static pressure Min-Max Pa N/A

Sound power level (2) H/M/L dB(A) 56/53/50

Sound pressure level (3) H/M/L dB(A) 43/40/37

Moisture removal l/hr 1.8

Condenstate drain tube I.D mm 16

Dimensions WxHxD mm 1060/295/210

Weight kg 14

Package dimensions WxHxD mm 1115/350/260

Packaged weight kg 17

Units per pallet units 16

Stacking height units 8

OUTDOOR

Refrigerant control Capillary tube

Compressor type,model Rotary,TOSHIBA PA200X2CS-4KU1

Fan type & quantity Propeller(direct) x 1

Fan speeds H/L RPM 815

Air flow H/L m3/hr 2480

Sound power level H/L dB(A) 68

Sound pressure level (3) H/L dB(A) 57

Dimensions WxHxD mm 846/302/690

Weight kg 56

Package dimensions WxHxD mm 990/430/770

Packaged weight kg 61

Units per pallet Units 9

Stacking height units 3

Refrigerant type R410A

Refrigerant chargless distance kg/m 1.54kg/7.5m

Additional charge g/m 4mLength10m 1540g 10mLength18m 1690g

18mLength25m 1900g

Connections between

units

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

Suction line In.(mm) 1/2"(12.7)

Max.tubing length m. 25

Max.height difference m. 15

Operation control type Remote control

Heating elements kW

Others All season kit Factory option

(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.

2-2

PRODUCT DATA SHEET

SM DELTA 1-E.0 GB

2.2 DELTA 21 / GC 22 R410A

Model Indoor Unit DELTA- 21

Model Outdoor Unit GC-22

Installation Method of Pipe Flared

Characteristics Units Cooling Only Cooling Heating

Capacity (4) Btu/hr 21150 21150 22180

kW 6.2 6.2 6.50

Power input (4) kW 2.05 2.05 2.00

EER (Cooling) or COP(Heating) (4) W/W 3.02 3.02 3.25

Energy efficiency class B B C

Power supply V/Hz/Ph 220-240V/50Hz/Single

Rated current A 9.3 9.3 9.7

Starting current A 50

Circuit breaker rating A 20

INDOOR

Fan type & quantity Cross flow*1

Fan speeds H/M/L RPM 1300/1200/1100

Air flow (1) H/M/L m3/hr 910/820/740

External static pressure Min-Max Pa 0

Sound power level (2) H/M/L dB(A) 60/57/55

Sound pressure level (3) H/M/L dB(A) 47/44/42

Moisture removal l/hr 2.3

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

Stacking height units 8

OUTDOOR

Refrigerant control Capillary tube

Compressor type,model Rotary,TOSHIBA PA240X2CS-4KU1

Fan type & quantity Propeller(direct) x 1

Fan speeds H/L RPM 815

Air flow H/L m3/hr 2860

Sound power level H/L dB(A) 69

Sound pressure level (3) H/L dB(A) 59

Dimensions WxHxD mm 846/302/690

Weight kg 56

Package dimensions WxHxD mm 990/720/430

Packaged weight kg 61

Units per pallet Units 9

Stacking height units 3 levels

Refrigerant type R410A

Refrigerant chargless distance kg/m 2.0kg/7.5m

Additional charge g/m

4mLength10m:+0g;

10mLength15m:+330g;

15mLength20m:+460g

Connections between

units

Liquid line In.(mm) 3/8"(9.53)

Suction line In.(mm) 5/8"(15.88)

Max.tubing length m. Max 20

Max.height difference m. Max 15

Operation control type Remote control

Heating elements kW 1.65/0.9

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.

2-3

PRODUCT DATA SHEET

SM DELTA 1-E.0 GB

2.3 DELTA 24 / OU7-24 R410A

Model Indoor Unit DELTA- 24

Model Outdoor Unit OU7-24

Installation Method of Pipe Flared

Characteristics Units Cooling Only Cooling Heating

Capacity (4) Btu/hr 23100 23100 24150

kW 6.77 6.77 7.08

Power input (4) kW 2.24 2.24 2.35

EER (Cooling) or COP(Heating) (4) W/W 3.02 3.02 2.95

Energy efficiency class B B D

Power supply V/Hz/Ph 220-240V/50Hz/Single

Rated current A 10.5 10.5 11.0

Starting current A 63

Circuit breaker rating A 20

INDOOR

Fan type & quantity Cross flow*1

Fan speeds H/M/L RPM 1300/1200/1100

Air flow (1) H/M/L m3/hr 910/820/740

External static pressure Min-Max Pa N/A

Sound power level (2) H/M/L dB(A) 60/57/55

Sound pressure level (3) H/M/L dB(A) 47/44/42

Moisture removal l/hr 2.3

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

Stacking height units 8

OUTDOOR

Refrigerant control Capillary tube

Compressor type,model Rotary

Fan type & quantity AXIAL*1

Fan speeds H/L RPM 850 720

Air flow H/L m3/hr 3100 2600

Sound power level H/L dB(A) 67 62

Sound pressure level (3) H/L dB(A) 58 54

Dimensions WxHxD mm 900/680/340

Weight kg 74

Package dimensions WxHxD mm 985/730/406

Packaged weight kg 77

Units per pallet Units 6

Stacking height units 2 levels

Refrigerant type R410A

Refrigerant chargless distance kg/m 2.035kg/12.5m

Additional charge g/m 12.5m<dd 350g<15m;

15m<dd 1040g<20m;

Connections between

units

Liquid line In.(mm) 3/8"(9.53)

Suction line In.(mm) 5/8"(15.88)

Max.tubing length m. Max 20

Max.height difference m. Max 15

Operation control type Remote control

Heating elements kW

Others All season kit Factory option

(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.

2-4

PRODUCT DATA SHEET

SM DELTA 1-E.0 GB

2.4 DELTA 24 / OU7-24Z R410A

Model Indoor Unit DELTA- 24

Model Outdoor Unit OU7-24Z

Installation Method of Pipe Flared

Characteristics Units Cooling Only Cooling Heating

Capacity (4) Btu/hr 23100 23100 24150

kW 6.77 6.77 7.08

Power input (4) kW 2.24 2.24 2.35

EER (Cooling) or COP(Heating) (4) W/W 3.02 3.02 2.95

Energy efficiency class B B D

Power supply V/Hz/Ph 220-240V/50Hz/Single

Rated current A 10.5 10.5 11.0

Starting current A 63

Circuit breaker rating A 20

INDOOR

Fan type & quantity Cross flow*1

Fan speeds H/M/L RPM 1300/1200/1100

Air flow (1) H/M/L m3/hr 910/820/740

External static pressure Min-Max Pa N/A

Sound power level (2) H/M/L dB(A) 60/57/55

Sound pressure level (3) H/M/L dB(A) 47/44/42

Moisture removal l/hr 2.3

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

Stacking height units 8

OUTDOOR

Refrigerant control Capillary tube

Compressor type,model Rotary

Fan type & quantity AXIAL*1

Fan speeds H/L RPM 850 720

Air flow H/L m3/hr 3100 2600

Sound power level H/L dB(A) 67 62

Sound pressure level (3) H/L dB(A) 58 54

Dimensions WxHxD mm 900/680/340

Weight kg 64

Package dimensions WxHxD mm 985/730/406

Packaged weight kg 67

Units per pallet Units 6

Stacking height units 2 levels

Refrigerant type R410A

Refrigerant chargless distance kg/m 1.7kg / 7.5m

Additional charge g/m 7.5m<dd 30g / <15m;

Connections between

units

Liquid line In.(mm) 3/8"(9.53)

Suction line In.(mm) 5/8"(15.88)

Max.tubing length m. Max 15

Max.height difference m. Max 7

Operation control type LCD Remote control

Heating elements 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.

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