Electra Alpha 7, Alpha 12, Alpha 9 DF, Alpha 17, Alpha 9 Service Manual

Service Manual

Alpha Series

REFRIGERANT

R410A

COOLING ONLY
HEAT PUMP

OCTOBER - 2007

Indoor Units Outdoor Units

Alpha 7 CON 7 (Alpha)
Alpha 9 GCN 9 (Alpha)
Alpha 9 DF ONG3-9
Alpha 12 GCN 12 (Alpha)
Alpha 12 DF ONG3-12
Alpha 17

ONG3-17 (Alpha)

Alpha 17 DF

A

LIST OF EFFECTIVE PAGES

Revision Y05-02

Service Manual - ALPHA

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 ........ 10 December 2004

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 ................ 1

2-1 - 2-3 ................ 1

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

4-1 - 4-3 ................ 1

5-1 - 5-12 .............. 2

6-1 - 6-3 ................ 1

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

8-1 - 8-3 ................ 1

9-1 ........................ 1

10-1-10-2 .............. 0

11-1 ....................... 0

12-1-12-32 ............ 1

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

14-1-14-23 ............ 1

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

i

TABLE OF CONTENTS

Revision Y05-02Service Manual - ALPHA

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. APPENDIX A .........................................................................................................15-1

1-1

INTRODUCTION

Revision Y05-02Service Manual - ALPHA

1. INTRODUCTION

1.1 General

The new Alpha split wall mounted is based on the compact range. It comprise the ST
(cooling only) and RC (heat pump) models, as follows:

● Cooling Only Alpha 7 ST/CON 7 ST; Alpha 9 ST/GCN 9 ST;

Alpha 12 ST/GCN 12 ST; Alpha 17 ST/ONG 17 ST;

● Heat Pump Alpha 7 RC/CON 7 RC; Alpha 9 RC/GCN 9 RC;

Alpha 12 RC/GCN 12 RC; Alpha 17 RC/ONG 17 RC;

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

compact dimensions, and low noise operation.

1.2 Main Features

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

● R410A models

● 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.

● 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.

● 4M length tubing connection kit is provided in the outdoor unit (optional).

1-2

INTRODUCTION

Revision Y05-02 Service Manual - ALPHA

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

● Multi-speed motor with internal protection

● Advanced electronic control box assembly

● Interconnecting wiring terminal block

● Mounting plate

1.4 Filtration

The Alpha 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 Alpha 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 :

● A Rotary compressor mounted in a soundproofed compartment :

● Axial fan.

● Outdoor coil with hydrophilic louver fins for RC units.

● Outlet air fan grill.

● Service valves” flare” type connection.

● Interconnecting wiring terminal block.

1-3

INTRODUCTION

Revision Y05-02Service Manual - ALPHA

1.7 Tubing Connections

Flare type interconnecting tubing can be produced on site.
A connection pipe kit is provided in outdoor package.
For further details please refer to the Installation Manual, Appendix A.

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.

1.9 Inbox Documentation

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

1.10 Matching Table

1.10.1 R410A

OUTDOOR UNITS

INDOOR UNITS

MODEL REFRIGER. Alpha 7 Alpha 9 Alpha 12 Alpha 17

CON 7 (Alpha) R410A √

GCN 9 (Alpha) R410A √

GCN 12 (Alpha) R410A √

ONG3 17 (Alpha) R410A √

2-1

PRODUCT DATA SHEET

Revision Y05-02Service Manual - ALPHA

2. PRODUCT DATA SHEET

2.1 R410A

Model Indoor Unit Alpha 7
Model Outdoor Unit CON 7 (Alpha)
Installation Method of Pipe Flared

Characteristics Units Cooling Only Cooling Heating

Capacity

(1)

Btu/hr 7000 7000 7300

kW 2.05 2.05 2.15

Power input

(1)

kW 0.68 0.68 0.63

EER (Cooling) or COP(Heating)

(1)

W/W 3.01 3.01 3.41

Energy efficiency class

B

B B
Power supply V/Ph/Hz 230V/Single/50Hz
Rated current A 3.0 3.0 2.8
Starting current A 15
Circuit breaker rating A 10

INDOOR

Fan type & quantity Crossflow x 1
Fan speeds H/M/L RPM 1150/950
Air flow

(2)

H/M/L m3/hr 390/320

External static pressure

Min-Max Pa 0

Sound power level

(3)

H/M/L dB(A) 50/44

Sound pressure level

(4)

H/M/L dB(A) 37/32
Moisture removal l/hr 0.8
Condenstate drain tube I.D mm 16
Dimensions WxHxD mm 680*250*180
Weight

kg 7
Package dimensions WxHxD mm 740*250*310
Packaged weight kg 9.5
Units per pallet units 36
Stacking height units 9 levels

OUTDOOR

Refrigerant control Capillary tube
Compressor type, model Rotary,TOSHIBA,PA82X1C-4DZDE
Fan type & quantity Propeller(direct) x 1
Fan speeds H/L RPM 850
Air flow H/L m3/hr 1200
Sound power level H/L dB(A) 61 62
Sound pressure level

(4)

H/L dB(A) 52 53
Dimensions WxHxD mm 610*235*490
Weight

kg 27 27.5
Package dimensions WxHxD mm 720*550*360
Packaged weight kg 30/33.5(with kit) 30.5/34(with kit)
Units per pallet Units 12
Stacking height units 4 levels
Refrigerant type R410A
Refrigerant chargless distance Kg/m 0.72kg/7.5m
Additional charge kg 4m≤length≤10m,0.72kg; 10m<length≤15m,0.8kg

Connections between

units

Liquid line In.(mm) Ф 1/4”(6.35)
Suction line In.(mm) Ф 3/8”(9.53)
Max.tubing length m. Max.15

Max.height
difference

m. Max.7

Operation control type 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.

2-2

PRODUCT DATA SHEET

Revision Y05-02 Service Manual - ALPHA

Model Indoor Unit Alpha 9
Model Outdoor Unit GCN 9 (Alpha)
Installation Method of Pipe Flared

Characteristics Units Cooling Only Cooling Heating

Capacity

(1)

Btu/hr

9000 9000 9650

kW

2.64 2.64 2.83

Power input

(1)

kW

0.87 0.87 0.93

EER (Cooling) or COP(Heating)

(1)

W/W

3.03 3.03 3.04

Energy efficiency class

B

B D

Power supply V/Ph/Hz 230V/Single/50Hz

Rated current A 3.9 3.9 4.1

Starting current A 21.7

Circuit breaker rating A 10

INDOOR

Fan type & quantity Crossflow x 1

Fan speeds H/M/L RPM 1310/1100

Air flow

(2)

H/M/L m3/hr 450/360

External static pressure Min-Max Pa 0

Sound power level

(3)

H/M/L dB(A) 53/49

Sound pressure level

(4)

H/M/L dB(A) 41/35

Moisture removal l/hr 1.2

Condenstate drain tube I.D mm 16

Dimensions WxHxD mm 680*250*180

Weight kg 7

Package dimensions WxHxD mm 740*250*310

Packaged weight kg 9.5

Units per pallet units 36

Stacking height units 9 levels

OUTDOOR

Refrigerant control Capillary tube

Compressor type,model

Rotary,TOSHIBA,PA108X1C-4FZDE

Fan type & quantity Propeller(direct) x 1

Fan speeds H/L RPM 750

Air flow H/L m3/hr 1370

Sound power level H/L dB(A) 59 61

Sound pressure level

(4)

H/L dB(A) 49 51

Dimensions WxHxD mm

830x245x545

Weight kg 32.5 33.5

Package dimensions WxHxD mm 880x320x610

Packaged weight kg 35/38.5(with kit) 36/39.5(with kit)

Units per pallet Units 9

Stacking height units 3levels

Refrigerant type R410A

Refrigerant chargless distance kg/m 0.85kg/7.5m 0.9kg/7.5m

Additional charge kg

4m≤length≤10m,0.85kg

10m<length≤15m,0.93kg

4m≤length≤10m,0.9kg

10m<length≤15m,0.98kg

Connections between

units

Liquid line In.(mm) Ф 1/4”(6.35)

Suction line In.(mm) Ф 3/8”(9.53)

Max.tubing length m. Max.15
Max.height
difference

m. Max.7

Operation control type 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.

2-3

PRODUCT DATA SHEET

Revision Y05-02Service Manual - ALPHA

Units Cooling Onl

y

Btu/hr 8870

kW 2.6

Sensible capacit

y

kW 1940

Moisture removal l/hr 0.98

kW 0.78

W/W 3.34

V/Ph/Hz

A

3.5

A

A

Fan speeds RPM

M

2

Qt

y

mm

External static pressure Nom Pa

amp

dB

(A)dB(A)

-

mm

WxDxH mm

k

g

watt
amp

RPM

Qt

y

mm

m3/hr

RPM

watt

M

2

Qt

y

mm

dB

(A)dB(A)

WxDxH mm

k

g

32 / 34.5

kg/m

g

/m

In.

(mm)

In.(mm

)

m.
m.

kW -

-

795*610*290 / 970*650*394

R410A

Running Current (Rated)

60 / -

730

20

0.45
2

41/-/35

-

supplied by others

0.13

53/-/49

Max.8

RC7 Remote control

680*250*180 / 740*310*248

9.5

Capillary tube

Flared
Max15

1.5

21°C/ 46°C

-9°C / 24°C

Power level (H/L)
Pressure level(3) (H/L)

Coil

49 / -

Weight

Air flow

3/8"(9.53)

Speed (H/L)

Motor Type

0.91kg/7.5m

4m

�L�10m: +0g; 10m�L�15m: +80g

Sound

Add charge per mtr

Model

Indoor unit
Outdoor unit

Cooling Temperature Operating Range (Min/Max)

Fan

Rows

Heating elements (Option) -

Max.tubing length

Connections between
units

Suction line

Max.height difference

Operation control type

Liquid line

Type

1/4"(6.35)

Others -

1750

33 / 35.5

Dimensions/(packaged)
Weight(packaged)

fixed RPM

Area

400

21°C DB (15 °C WB) / 32°C DB (23°C WB)

Sound

ONG3-9 R410A B1

Motor kW

10°C /27°C

16

Power level (H/M/L)
Pressure level(3) (H/M/L

Condenstate drain tube I.D

3

Airflow direction control
Air Filter

Cooling Temperature Operating Range (Min/Max)

Type

Model

Heating Temperature Operating Range (Min/Max)

Dimensions/(packaged)

Fin Spacing

Type
Blades

Motor output

Diameter

21.7

10

H/M/L

Fan type & quantity

Delta 9RC/ST fixed rpm R410A

Model

Centifugal x1

1310/-/1100

OUTDOOR

Compressor

Motor Speed

Refrigerant

Chargless distance

Heating Temperature Operating Range (Min/Max)

Type
Control

Model

Running Current (Rated

)

3.35

Power supply 220-240V/Single/50Hz

INDOOR

Air flow (1)

H

3.8
Starting current
Circuit breaker rating

0.850

1940

-

Capacity (4)

Total

8870

9720

2.6

2.85

0.98

EER (Cooling) or COP(Heating) (4) 3.34

Heating

Delta 9RC/ST fixed rpm R410A

ONG3-9 R410A B1

Characteristics Cooling

Running Current (Rated) 3.5

-

Coil

Fin Spacing 1.5

M

Power input (4)

0.78

0

100

2

L

Rows

0.126Area

L/S -

125

Single Rotary

PA103X1C-4DZDE

3000

Propeller(direct) x 1

840/870

3.90/3.80

(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 AS 3823, ISO 5151 and ISO 13253 (for ducted units).

2-4

PRODUCT DATA SHEET

Revision Y05-02 Service Manual - ALPHA

Model Indoor Unit Alpha 12
Model Outdoor Unit GCN 12 (Alpha)

Installation Method of Pipe Flared

Characteristics Units Cooling Only Cooling Heating

Capacity

(1)

Btu/hr

12000 12000 12900

kW

3.50 3.50 3.78

Power input

(1)

kW

1.16 1.16 1.17

EER (Cooling) or COP(Heating)

(1)

W/W

3.02 3.02 3.23

Energy efficiency class

B

B C

Power supply V/Ph/Hz 230V/Single/50Hz

Rated current A 5.2 5.2 5.2

Starting current A 31.5

Circuit breaker rating A 10

INDOOR

Fan type & quantity Crossflow x 1

Fan speeds H/M/L RPM 1210/950

Air flow

(2)

H/M/L m3/hr 620/460

External static pressure Min-Max Pa 0

Sound power level

(3)

H/M/L dB(A) 53/47

Sound pressure level

(4)

H/M/L dB(A) 40/33

Moisture removal l/hr 1.5

Condenstate drain tube I.D mm 16

Dimensions WxHxD mm 840*250*180

Weight kg 8

Package dimensions WxHxD mm 900*250*310

Packaged weight kg 11

Units per pallet units 36

Stacking height units 9 levels

OUTDOOR

Refrigerant control Capillary tube

Compressor type,model Rotary,TOSHIBA,PA145X2C-4FT

Fan type & quantity Propeller(direct) x 1

Fan speeds H/L RPM 830

Air flow H/L m3/hr 1450

Sound power level H/L dB(A) 65 65

Sound pressure level

(4)

H/L dB(A) 54 54

Dimensions WxHxD mm 830x245x545

Weight kg 37 38

Package dimensions WxHxD mm 880x320x610

Packaged weight kg 39.5/43(with kit) 40.5/44(with kit)

Units per pallet Units 9

Stacking height units 3 levels

Refrigerant type R410A

Refrigerant chargless distance kg/m 0.89kg/7.5m

Additional charge per 1 meter g/m

4m≤length≤10m,0.89kg

10m<length≤15m,0.97kg

Connections between

units

Liquid line In.(mm) Ф1/4”(6.35)

Suction line In.(mm) ø3/8”(9.53)

Max.tubing length m. Max.15
Max.height
difference

m. Max.7

Operation control type 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.

2-5

PRODUCT DATA SHEET

Revision Y05-02Service Manual - ALPHA

Units Cooling Only

Btu/hr 11260

kW 3.3
Sensible capacity kW 2.585
Moisture removal l/hr 1.05

kW 1.01

W/W 3.26

V/Ph/Hz

A 4.6
A
A

Fan speeds RPM

M

2

Qty

mm

External static pressure Nom Pa

amp
dB(A)
dB(A)

-

mm

WxDxH mm

kg

watt

amp

RPM

Qty

mm
m3/hr

RPM

watt

M

2

Qty

mm
dB(A)
dB(A)

WxDxH mm

kg 33.5 / 36

kg/m

g/m

In.(mm)
In.(mm)

m.
m.

kW -

-

Model

Indoor unit Delta 12RC/ST fixed rpm R410A
Outdoor unit ONG3-12 R410A B1

Characteristics Cooling Heating

Capacity (4)

Total

11260

12280

3.3

3.60

2.585

-

1.05

-

Power input (4)

1.01

1.030
EER (Cooling) or COP(Heating) (4) 3.26 3.47
Power supply 220-240V/Single/50Hz
Running Current (Rated) 4.6 4.7
Starting current 24
Circuit breaker rating 10

INDOOR

Model Delta 12RC/ST fixed rpm R410A
Fan type & quantity Centifugal x1

H/M/L 1210/-/950

Air flow (1)

H

L/S

172
M ­L 127

Coil

Area 0.167
Rows 2
Fin Spacing 1.5

0
Airflow direction control ­Air Filter supplied by others
Running Current (Rated) 0.13

Sound

Power level (H/M/L) 53/-/47

Pressure level(3) (H/M/ 40/-/33
Cooling Temperature Operating Range (Min/Max) 21 °C DB (15°C WB) / 32°C DB (23°C WB)
Heating Temperature Operating Range (Min/Max) 10 °C ~27 °C
Condenstate drain tube I.D 16
Dimensions/(packaged) 840*250*180 / 900*310*248
Weight 10.5

OUTDOOR

Model ONG3-12 R410A B1

Compressor

Type Single Rotary

Model PANSONIC, 5PS132EAA22

Motor kW 1085/1115

Running Current (Rate

d

5.05/4.85

Motor Speed 3000

Fan

Type Propeller(direct) x 1

Blades 3

Diameter 400

Air flow 1850

Motor Type Fixed RPM

Speed (H/L) 810

Motor output 25

Coil

Area 0.45

Rows 2

Fin Spacing 1.5

Sound

Power level (H/L)

Pressure level(3) (H/L)

61/-

50/­Cooling Temperature Operating Range (Min/Max) 21 °C / 46 °C
Heating Temperature Operating Range (Min/Max) -9 °C / 24 °C
Dimensions/(packaged) 795*610*290 / 970*650*394
Weight(packaged) 34.5 / 37

Max.height difference

Refrigerant

Type R410A
Control Capillary tube
Chargless distance 0.93kg/7.5m
Add charge per mtr 4m

�L�10m: +0g; 10m�L�15m: +80g

Type Flared
Max.tubing length Max15

Max.8
Operation control type RC7 Remote control
Heating elements (Option)

-

Connections between
units

Liquid line 1/4"(6.35)
Suction line 3/8"(9.53)

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 AS 3823, ISO 5151 and ISO 13253 (for ducted units).

2-6

PRODUCT DATA SHEET

Revision Y05-02 Service Manual - ALPHA

Model Indoor Unit Alpha 17
Model Outdoor Unit ONG3 17 (Alpha)

Installation Method of Pipe Flared

Characteristics Units cooling only Cooling Heating

Capacity

(1)

Btu/hr

17570 17570 18250

kW

5.15 5.15 5.35

Power input

(1)

kW

1.70 1.70 1.65

EER (Cooling) or COP(Heating)

(1)

W/W

3.03 3.03 3.24

Energy efficiency class

B

B C

Power supply V/Ph/Hz 230V/Single/50Hz

Rated current A 7.6 7.6 7.4

Starting current A 30

Circuit breaker rating A 15

INDOOR

Fan type & quantity Cross flow x 1

Fan speeds H/M/L RPM 1200/1000

Air flow

(2)

H/M/L m3/hr 720/590

External static pressure Min-Max Pa 0

Sound power level

(3)

H/M/L dB(A) 55-50

Sound pressure level

(4)

H/M/L dB(A) 43-37

Moisture removal l/hr 2.2

Condensate drain tube I.D mm 16

Dimensions WxHxD mm 900x295x200

Weight kg 11

Package dimensions WxHxD mm 955x360x270

Packaged weight kg 14

Units per pallet units 24

Stacking height units 8 levels

OUTDOOR

Refrigerant control Capillary tube

Compressor type, model Rotary,TOSHIBA,PA200X2CS-4KT1

Fan type & quantity Propeller(direct) x 1

Fan speeds H/L RPM 910

Air flow H/L m3/hr 2160

Sound power level H/L dB(A) 64 65

Sound pressure level

(4)

H/L dB(A) 53 54

Dimensions WxHxD mm 795x290x610

Weight

kg 42 43

Package dimensions WxHxD mm 945x395x655

Packaged weight kg 45/49(with kit) 46/50(with kit)

Units per pallet Units 9

Stacking height units 3 levels

Refrigerant type R410A

Refrigerant chargless distance kg/m 1.28/7.5

Additional charge per 1 meter g/m

4m ≤ L ≤10M:0g

10m ≤ L ≤15M:+100g

Connections between units

Liquid line In.(mm) ø1/4”(6.35)

Suction line In.(mm) ø 1/2”(12.7)

Max.tubing length m. Max.15
Max.height
difference

m. Max.7

Operation control type Remote Control

Heating elements kW

Others ASK 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.

2-7

PRODUCT DATA SHEET

Revision Y05-02Service Manual - ALPHA

Model Indoor Unit

Delta 17RC/ST fixed rpm R410A

Model Outdoor Unit ONG3 17 (Alpha)

Installation Method of Pipe Flared

Characteristics Units cooling only Cooling Heating

Capacity

(1)

Btu/hr

17570 17570 18250

kW

5.15 5.15 5.35

Power input

(1)

kW

1.70 1.70 1.65

EER (Cooling) or COP(Heating)

(1)

W/W

3.03 3.03 3.24

Energy efficiency class

B

B C

Power supply V/Ph/Hz 230V/Single/50Hz

Rated current A 7.6 7.6 7.4

Starting current A 30

Circuit breaker rating A 15

INDOOR

Fan type & quantity Cross flow x 1

Fan speeds H/M/L RPM 1200/1000

Air flow

(2)

H/M/L m3/hr 720/590

External static pressure Min-Max Pa 0

Sound power level

(3)

H/M/L dB(A) 55-50

Sound pressure level

(4)

H/M/L dB(A) 43-37

Moisture removal l/hr 2.2

Condensate drain tube I.D mm 16

Dimensions WxHxD mm 900x295x205

Weight kg 11

Package dimensions WxHxD mm 955x360x270

Packaged weight kg 14

Units per pallet units 24

Stacking height units 8 levels

OUTDOOR

Refrigerant control Capillary tube

Compressor type, model Rotary,TOSHIBA,PA200X2CS-4KT1

Fan type & quantity Propeller(direct) x 1

Fan speeds H/L RPM 910

Air flow H/L m3/hr 2160

Sound power level H/L dB(A) 64 65

Sound pressure level

(4)

H/L dB(A) 53 54

Dimensions WxHxD mm 795x290x610

Weight

kg 42 43

Package dimensions WxHxD mm 945x395x655

Packaged weight kg 45/49(with kit) 46/50(with kit)

Units per pallet Units 9

Stacking height units 3 levels

Refrigerant type R410A

Refrigerant chargless distance kg/m 1.28/7.5

Additional charge per 1 meter g/m

4m ≤ L ≤10M:0g

10m ≤ L ≤15M:+100g

Connections between units

Liquid line In.(mm) ø1/4”(6.35)

Suction line In.(mm) ø 1/2”(12.7)

Max.tubing length m. Max.15
Max.height
difference

m. Max.7

Operation control type Remote Control

Heating elements kW

Others ASK 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.

3-1

RATING CONDITIONS

Revision Y05-02Service Manual - ALPHA

3. RATING CONDITIONS

Standard conditions in accordance with ISO 5151, ISO 13253 (for ducted units)
and EN 14511.

Cooling:

Indoor: 27oC DB 19oC WB
Outdoor: 35

o

C 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 10oC DB

Heating

Upper limit 27oC DB 24oC DB 18oC WB

Lower limit 10oC DB -9oC DB -10oC WB

Voltage 198 – 264 V

4-1

OUTLINE DIMENSIONS

Revision Y05-02Service Manual - ALPHA

4. OUTLINE DIMENSIONS

4.1 Indoor Unit: Apha 7, 9 (Omega)

4.2 Indoor Unit: Alpha 12 (Omega)

4-2

OUTLINE DIMENSIONS

Revision Y05-02 Service Manual - ALPHA

4.3 Indoor Unit: Alpha 17

4.4 Indoor Unit: Alpha 9DF

180

680

250

4-3

OUTLINE DIMENSIONS

Revision Y05-02Service Manual - ALPHA

4.5 Indoor Unit: Alpha 12DF

4.6 Indoor Unit Alpha 17DF

180

250

840

4-4

OUTLINE DIMENSIONS

Revision Y05-02 Service Manual - ALPHA

4.5 Outdoor Unit CON 7 (Alpha)

4.5 Outdoor Unit GCN 9, 12 (Alpha)

AI R OUTLET

AI R I NTAKE

4-5

OUTLINE DIMENSIONS

Revision Y05-02Service Manual - ALPHA

4.6 Outdoor Unit ONG3- 9, 12, 17 (Alpha)

5-1

PERFORMANCE DATA & PRESSURE CURVES

Revision Y05-02Service Manual - ALPHA

5. PERFORMANCE DATA & PRESSURE CURVES

5.1 Alpha7/CON7

5.1.1 Cooling Mode at 7.5m Tubing Connection.

230V : Indoor Fan at High Speed.

ENTERING AIR
DB OD Coil(oC)

Data

ENTERING AIR WB/DB ID Coil(

o

C)

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

15

(1)

TC

2.16 2.24 2.29 2.34 2.38

SC 1.49 1.55 1.61 1.65 1.68

PI

0.48 0.48 0.48 0.49 0.49

20

(1)

TC

2.09 2.20 2.27 2.33 2.38

SC 1.46 1.54 1.60 1.65 1.68

PI

0.52 0.53 0.53 0.53 0.53

25

TC

1.98 2.14 2.25 2.31 2.37

SC 1.42 1.51 1.59 1.64 1.67

PI

0.57 0.57 0.57 0.58 0.58

30

TC

1.85 2.01 2.18 2.25 2.32

SC 1.38 1.46 1.56 1.60 1.63

PI

0.61 0.62

0.62

0.63 0.64

35

TC

1.71 1.86

2.05

2.15 2.25

SC 1.31 1.40 1.52 1.56 1.59

PI

0.66 0.67

0.68

0.69 0.69

40

TC

1.56 1.70

1.85

2.02 2.13

SC 1.23 1.33 1.44 1.48 1.51

PI

0.71 0.72 0.73 0.74 0.75

46

TC

1.35 1.48 1.62 1.79 1.93

SC 1.14 1.22 1.31 1.36 1.39

PI

0.78 0.79 0.81 0.82 0.83

LEGEND

TC – Total Cooling Capacity, kW
SC – Sensible Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (

o

C)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OD – Outdoor

(1) Marked area is below standard operating limits. For operating in low ambient

conditions, an A.S.K Kit is required.

5-2

PERFORMANCE DATA & PRESSURE CURVES

Revision Y05-02 Service Manual - ALPHA

5.1.2 Heating

ENTERING AIR DB ID COIL(Oc)

15 20 25

ENTERING

WB OD

COIL(oC)

TH Pl TH Pl TH Pl

-10 1.13 0.50 1.09 0.54 1.04 0.56

-7 1.21 0.52 1.17 0.54 1.13 0.57

-2 1.29 0.52 1.25 0.55 1.20 0.59

2 1.57 0.55

1.51 0.58

1.44 0.62

6 2.21 0.59 2.15 0.63 2.07 0.67

10 2.41 0.62

2.34 0.66

2.28 0.71

15 2.60 0.65 2.54 0.70 2.47 0.74

20 2.74 0.67 2.68 0.72 2.60 0.78

LEGEND

TH – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (

o

C)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OD – Outdoor

5-3

PERFORMANCE DATA & PRESSURE CURVES

Revision Y05-02Service Manual - ALPHA

5.2 Model: Alpha7/CON7

5.2.1 Cooling

Discharge Pressure VS.Outdoor Temp

16

18

20

22

24

26

28

30

32

34

36

38

15 20 25 30 35 40 46

Outdoor Temp.(DB oC )

Discharge Pressure (Bar[g])

15/21(WB/DB ºC)

17/24(WB/DB ºC)

19/27(WB/DB ºC)

21/29(WB/DB ºC)

23/32(WB/DB ºC)

Suction Pressure VS.Outdoor Temp

6.5

7.0

7.5

8.0

8.5

9.0

9.5

10.0

10.5

11.0

15 20 25 30 35 40 46

Outdoor Temp.(DB oC )

Suction Pressure (Bar[g])

15/21(WB/DB ºC)

17/24(WB/DB ºC)

19/27(WB/DB ºC)

21/29(WB/DB ºC)

23/32(WB/DB ºC)

5-4

PERFORMANCE DATA & PRESSURE CURVES

Revision Y05-02 Service Manual - ALPHA

5.2.2 Heating

Discharge Pressure VS.Outdoor Temp

18

20

22

24

26

28

30

32

34

36

-10 -5 0 5 10 15 20

Outdoor Temp.( WB oC )

Discharge Pressure(Bar[g])

25 DB (ºC)

20 DB (ºC)

15 DB (ºC)

Suction Pressure VS.Outdoor Temp

4.0

5.0

6.0

7.0

8.0

9.0

10.0

-10 -5 0 5 10 15 20

Outdoor Temp.( WB oC )

Suction Pressure(Bar[g])

15 DB (ºC)

20 DB (ºC)

25 DB (ºC)

5-5

PERFORMANCE DATA & PRESSURE CURVES

Revision Y05-02Service Manual - ALPHA

5.3 Alpha9/GCN9

5.3.1 Cooling Mode at 7.5m Tubing Connection.

230V : Indoor Fan at High Speed.

ENTERING AIR
DB OD Coil(oC)

Data

ENTERING AIR WB/DB ID Coil(

o

C)

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

15

(1)

TC

2.78 2.88 2.95 3.02 3.07

SC 1.78 1.86 1.93 1.98 2.02

PI

0.62 0.62 0.62 0.62 0.62

20

(1)

TC

2.69 2.84 2.93 3.00 3.06

SC 1.75 1.84 1.92 1.97 2.01

PI

0.67 0.67 0.67 0.68 0.68

25

TC

2.55 2.75 2.89 2.98 3.05

SC 1.70 1.81 1.90 1.96 2.00

PI

0.72 0.73 0.73 0.74 0.74

30

TC

2.38 2.59 2.80 2.90 2.99

SC 1.65 1.75 1.86 1.92 1.95

PI

0.78 0.79

0.80

0.81 0.81

35

TC

2.21 2.39

2.64

2.77 2.90

SC 1.57 1.68 1.82 1.87 1.91

PI

0.84 0.86

0.87

0.88 0.88

40

TC

2.01 2.18

2.38

2.60 2.74

SC 1.48 1.59 1.72 1.78 1.81

PI

0.91 0.92 0.94 0.95 0.96

46

TC

1.74 1.90 2.09 2.31 2.49

SC 1.36 1.46 1.57 1.62 1.66

PI

0.99 1.01 1.03 1.04 1.06

LEGEND

TC – Total Cooling Capacity, kW
SC – Sensible Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (

o

C)
DB – Dry Bulb Temp., (

o

C)
ID – Indoor
OD – Outdoor

(1) Marked area is below standard operating limits. For operating in low ambient

conditions, an A.S.K Kit is required.

5-6

PERFORMANCE DATA & PRESSURE CURVES

Revision Y05-02 Service Manual - ALPHA

5.3.2 Heating

ENTERING AIR DB ID COIL(Oc)

15 20 25

ENTERING

WB OD

COIL(oC)

TH Pl TH Pl TH Pl

-10 1.49 0.74 1.43 0.79 1.37 0.83

-7 1.60 0.76 1.54 0.80 1.49 0.85

-2 1.70 0.77 1.64 0.82 1.58 0.86

2 2.07 0.81

1.98 0.86

1.90 0.91

6 2.91 0.87 2.83 0.93 2.73 0.99

10 3.17 0.92

3.08 0.98

3.00 1.05

15 3.42 0.96 3.34 1.03 3.25 1.10

20 3.61 0.99 3.52 1.07 3.42 1.15

LEGEND

TH – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (

o

C)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OD – Outdoor

5-7

PERFORMANCE DATA & PRESSURE CURVES

Revision Y05-02Service Manual - ALPHA

5.4 Model: Alpha9/GCN9

5.4.1 Cooling

Discharge Pressure VS.Outdoor Temp

16

18

20

22

24

26

28

30

32

34

36

38

15 20 25 30 35 40 46

Outdoor Temp.(DB oC )

Discharge Pressure (Bar[g])

15/21(WB/DB ºC)

17/24(WB/DB ºC)

19/27(WB/DB ºC)

21/29(WB/DB ºC)

23/32(WB/DB ºC)

Suction Pressure VS.Outdoor Temp

6.5

7.0

7.5

8.0

8.5

9.0

9.5

10.0

10.5

11.0

15 20 25 30 35 40 46

Outdoor Temp.(DB oC )

Suction Pressure (Bar[g])

15/21(WB/DB ºC)

17/24(WB/DB ºC)

19/27(WB/DB ºC)

21/29(WB/DB ºC)

23/32(WB/DB ºC)

5-8

PERFORMANCE DATA & PRESSURE CURVES

Revision Y05-02 Service Manual - ALPHA

5.4.2 Heating

Discharge Pressure VS.Outdoor Temp

20

22

24

26

28

30

32

34

36

38

40

-10 -5 0 5 10 15 20

Outdoor Temp.( WB oC )

Discharge Pressure(Bar[g])

25 DB (ºC)

20 DB (ºC)

15 DB (ºC)

Suction Pressure VS.Outdoor Temp

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

11.0

-10 -5 0 5 10 15 20

Outdoor Temp.( WB oC )

Suction Pressure(Bar[g])

15 DB (ºC)

20 DB (ºC)

25 DB (ºC)

5-9

PERFORMANCE DATA & PRESSURE CURVES

Revision Y05-02Service Manual - ALPHA

5.5 Alpha12/GCN12

5.5.1 Cooling Mode at 7.5m Tubing Connection.

230V : Indoor Fan at High Speed.

ENTERING AIR
DB OD Coil(oC)

Data

ENTERING AIR WB/DB ID Coil(

o

C)

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

15

(1)

TC

3.69 3.82 3.91 4.00 4.06

SC 2.42 2.52 2.62 2.69 2.74

PI

0.82 0.82 0.83 0.83 0.83

20

(1)

TC

3.57 3.76 3.88 3.97 4.06

SC 2.37 2.50 2.60 2.68 2.73

PI

0.89 0.90 0.90 0.90 0.91

25

TC

3.38 3.65 3.83 3.95 4.05

SC 2.31 2.45 2.59 2.66 2.71

PI

0.96 0.97 0.98 0.98 0.99

30

TC

3.16 3.44 3.71 3.85 3.96

SC 2.24 2.38 2.53 2.60 2.65

PI

1.04 1.06

1.07

1.07 1.08

35

TC

2.92 3.17

3.50

3.68 3.85

SC 2.13 2.28 2.47 2.54 2.59

PI

1.12 1.14

1.16

1.17 1.18

40

TC

2.66 2.89

3.16

3.45 3.63

SC 2.01 2.16 2.34 2.41 2.46

PI

1.21 1.23 1.25 1.27 1.28

46

TC

2.31 2.52 2.77 3.06 3.30

SC 1.85 1.98 2.13 2.20 2.25

PI

1.32 1.34 1.37 1.39 1.41

LEGEND

TC – Total Cooling Capacity, kW
SC – Sensible Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (

o

C)
DB – Dry Bulb Temp., (

o

C)
ID – Indoor
OD – Outdoor

(1) Marked area is below standard operating limits. For operating in low ambient

conditions, an A.S.K Kit is required

5-10

PERFORMANCE DATA & PRESSURE CURVES

Revision Y05-02 Service Manual - ALPHA

5.5.2 Heating

ENTERING AIR DB ID COIL(Oc)

15 20 25

ENTERING

WB OD

COIL(oC)

TH Pl TH Pl TH Pl

-10 1.98 0.94 1.91 1.00 1.83 1.05

-7 2.14 0.96 2.06 1.01 1.98 1.07

-2 2.27 0.97 2.19 1.03 2.12 1.09

2 2.76 1.02

2.65 1.08

2.53 1.15

6 3.89 1.09 3.78 1.17 3.65 1.24

10 4.23 1.15

4.12 1.23

4.01 1.32

15 4.57 1.21 4.46 1.30 4.35 1.38

20 4.82 1.24 4.71 1.35 4.57 1.45

LEGEND

TH – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (

o

C)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OD – Outdoor

5-11

PERFORMANCE DATA & PRESSURE CURVES

Revision Y05-02Service Manual - ALPHA

5.6 Model: Alpha12/GCN12

5.6.1 Cooling

Discharge Pressure VS.Outdoor Temp

16

18

20

22

24

26

28

30

32

34

36

38

15 20 25 30 35 40 46

Outdoor Temp.(DB oC )

Discharge Pressure (Bar[g])

15/21(W B/DB ºC)

17/24(W B/DB ºC)

19/27(W B/DB ºC)

21/29(W B/DB ºC)

23/32(W B/DB ºC)

Suction Pressure VS.Outdoor Temp

6.0

6.5

7.0

7.5

8.0

8.5

9.0

9.5

10.0

10.5

15 20 25 30 35 40 46

Outdoor Temp.(DB oC )

Suction Pressure (Bar[g])

15/21(WB/DB ºC)

17/24(WB/DB ºC)

19/27(WB/DB ºC)

21/29(WB/DB ºC)

23/32(WB/DB ºC)

5-12

PERFORMANCE DATA & PRESSURE CURVES

Revision Y05-02 Service Manual - ALPHA

5.6.2 Heating

Discharge Pressure VS.Outdoor Temp

20

22

24

26

28

30

32

34

36

38

-10 -5 0 5 10 15 20

Outdoor Temp.( WB oC )

Discharge Pressure(Bar[g])

25 DB (ºC)

20 DB (ºC)

15 DB (ºC)

Suction Pressure VS.Outdoor Temp

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

11.0

-10 -5 0 5 10 15 20

Outdoor Temp.( WB oC )

Suction Pressure(Bar[g])

15 DB (ºC)

20 DB (ºC)

25 DB (ºC)

5-13

PERFORMANCE DATA & PRESSURE CURVES

Revision Y05-02Service Manual - ALPHA

5.7 Model: Alpha17/ ONG17 R410A

5.7.1 Cooling Mode at 7.5m Tubing Connection.

230V : Indoor Fan at High Speed.

ENTERING AIR

DB OD COIL (°C)

DATA

ENTERING AIR WB/DB ID COIL ( °C)

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

15

(1)

TC

5.43 5.62 5.75 5.89 5.98

SC

3.56 3.72 3.86 3.96 4.03

PI

1.21 1.21 1.21 1.21 1.22

20

(1)

TC

5.25 5.54 5.71 5.85 5.97

SC

3.49 3.68 3.84 3.95 4.02

PI

1.31 1.31 1.32 1.32 1.33

25

TC

4.97 5.36 5.64 5.81 5.95

SC

3.40 3.61 3.81 3.92 3.99

PI

1.41 1.42 1.43 1.44 1.45

30

TC

4.65 5.06 5.47 5.66 5.83

SC

3.30 3.50 3.73 3.84 3.91

PI

1.53 1.55

1.56

1.57 1.59

35

TC

4.30 4.67

5.15

5.41 5.66

SC

3.14 3.36 3.64 3.75 3.82

PI

1.65 1.67

1.70

1.71 1.72

40

TC

3.91 4.26

4.65

5.08 5.34

SC

2.95 3.18 3.44 3.55 3.63

PI

1.77 1.80 1.83 1.86 1.87

46

TC

3.39 3.71 4.08 4.51 4.86

SC

2.72 2.92 3.14 3.25 3.32

PI

1.94 1.97 2.01 2.04 2.06

LEGEND

TC – Total Cooling Capacity, kWv
SC – Sensible Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (

o

C)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OD – Outdoor

(1) Marked area is below standard operating limits. For operating in low ambient

conditions, refer to Optional Accessories (Chapter 15).

5-14

PERFORMANCE DATA & PRESSURE CURVES

Revision Y05-02 Service Manual - ALPHA

5.7.2 Heating Mode at 7.5m Tubing Connection.

230V : Indoor Fan at High Speed.

ENTERING AIR DB ID COIL ( °C)

15 20 25

ENTERING AIR

WB OU COIL ( °C)

TH PI TH PI TH PI

-10 2.81 1.32 2.70 1.41 2.59 1.48

-7 3.02 1.35 2.92 1.43 2.81 1.50

-2 3.21 1.37 3.10 1.45 3.00 1.53
2 3.91 1.44

3.75 1.53

3.58 1.62

6 5.51 1.54 5.35 1.65 5.16 1.75
10 5.99 1.63

5.83 1.74

5.67 1.86

15 6.47 1.70 6.31 1.83 6.15 1.95
20 6.82 1.75 6.66 1.90 6.47 2.05

* the above chart includes the weighted deicing infleuence.

LEGEND

TH – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (

o

C)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OU – Outdoor

5.8 Capacity Correction Factor Due to Tubing Length

5.8.1 Cooling

TOTAL TUBING LENGTH (One Way)

Model

3m

7.5m

10m 15m 20m 25m 30m 40m 50m

Alpha7,9,12,17

1.02

1

0.97 0.95 --- --- --- --- ---

* Minimum recommended tubing length between indoor and outdoor units is 3m.

5.8.2 Heating

TOTAL TUBING LENGTH(One Way)

Model

3m

7.5m

10m 15m 20m 25m 30m 40m 50m

Alpha7,9,12,17

1.03

1

0.98 0.96 --- --- --- --- ---

* Minimum recommended tubing length between indoor and outdoor units is 3m.

5-15

PERFORMANCE DATA & PRESSURE CURVES

Revision Y05-02Service Manual - ALPHA

5.9. Model: Alpha17/ONG3-17

5.9.1 Cooling

Discharge Pressure VS.Outdoor Temp

16

18

20

22

24

26

28

30

32

34

36

38

40

15 20 25 30 35 40 46

Outdoor Temp.(DB oC )

Discharge Pressure (Bar[g])

15/21(WB/DB ºC)

17/24(WB/DB ºC)

19/27(WB/DB ºC)

21/29(WB/DB ºC)

23/32(WB/DB ºC)

Suction Pressure VS.Outdoor Temp

6.5

7.0

7.5

8.0

8.5

9.0

9.5

10.0

10.5

11.0

15 20 25 30 35 40 46

Outdoor Temp.(DB oC )

Suction Pressure (Bar[g])

15/21(WB/DB ºC)

17/24(WB/DB ºC)

19/27(WB/DB ºC)

21/29(WB/DB ºC)

23/32(WB/DB ºC)

5-16

PERFORMANCE DATA & PRESSURE CURVES

Revision Y05-02 Service Manual - ALPHA

5.9.2 Heating.

Discharge Pressure VS.Outdoor Temp

18

20

22

24

26

28

30

32

34

36

38

40

-10 -5 0 5 10 15 20

Outdoor Temp.( WB oC )

Discharge Pressure(Bar[g])

25 DB (ºC)

20 DB (ºC)

15 DB (ºC)

Suction Pressure VS.Outdoor Temp

4.0

5.0

6.0

7.0

8.0

9.0

10.0

11.0

-10 -5 0 5 10 15 20

Outdoor Temp.( WB oC )

Suction Pressure(Bar[g])

15 DB (ºC)

20 DB (ºC)

25 DB (ºC)

6-1

SOUND LEVEL CHARACTERISTICS

Revision Y05-02Service Manual - ALPHA

6. SOUND LEVEL CHARACTERISTICS

6.1 Sound Pressure Level

Figure 1. Wall Mounted Figure 2. Floor Mounted

Figure 3. Ducted Figure 4. Cassette

6.2 Soud Pressure Level Spectrum (Measured as Figure 1)

Alpha 7 Alpha 9

BAND CENTER FREQUENCIES, Hz

APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

FAN SPEED LINE

HI

LO

BAND CENTER FREQUENCIES, Hz

APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

6-2

SOUND LEVEL CHARACTERISTICS

Revision Y05-02 Service Manual - ALPHA

Microphone Distance from Unit

6.3 Outdoor units

6.4 Sound Pressure Level Spectrum

(Measured as Figure 5)

Alpha 7 Cooling Alpha 7 Heating

BAND CENTER FREQUENCIES, Hz

APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

Alpha 12 Alpha 17

BAND CENTER FREQUENCIES, Hz

APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

6-3

SOUND LEVEL CHARACTERISTICS

Revision Y05-02Service Manual - ALPHA

Alpha 9 Cooling Alpha 9 Heating

Alpha 12 Cooling Alpha 12 Heating

BAND CENTER FREQUENCIES, Hz

APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

6-4

SOUND LEVEL CHARACTERISTICS

Revision Y05-02 Service Manual - ALPHA

BAND CENTER FREQUENCIES, Hz

APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

Alpha 17 Cooling Alpha 17 Heating

BAND CENTER FREQUENCIES, Hz

APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

7-1

ELECTRICAL DATA

Revision Y05-02Service Manual - ALPHA

7. ELECTRICAL DATA

7.1 Single Phase Units

MODEL Alpha 7 Alpha 9

Power Supply

To indoor To indoor

1PH-230V-50Hz 1PH-230V-50Hz

Max Current, A

4.1 6.5

Circuit Breaker,A

10 10

Power Supply Wiring No. X
Cross Section mm

2

3x1.0 mm

2

3x1.0 mm

2

Interconnecting Cable RC
Model No. X Cross Section mm

2

5x1.0 mm2 +2x0.5 mm2 (OCT senser) 5x1.0 mm2 +2x0.5 mm2 (OCT senser)

Interconnecting Cable ST
Model No. X Cross Section mm

2

4x1.0 mm

2

4x1.0 mm

2

MODEL Alpha 12 Alpha 17

Power Supply

To indoor To indoor

1PH-230V-50Hz 1PH-230V-50Hz

Max Current, A

7.7 10.4

Circuit Breaker,A

10 15

Power Supply Wiring No. X
Cross Section mm

2

3x1.0 mm

2

3x1.5 mm

2

Interconnecting Cable RC
Model No. X Cross Section mm

2

5x1.0 mm2 +2x0.5 mm2 (OCT senser) 5x1.5 mm2 +2x0.5 mm2 (OCT senser)

Interconnecting Cable ST
Model No. X Cross Section mm

2

4x1.0 mm

2

4x1.5 mm

2

NOTE

Power wiring cord should comply with local lows and electrical
regulations requirements.

8-1

WIRING DIAGRAMS

Revision Y05-02Service Manual - ALPHA

8. WIRING DIAGRAMS

8.1 Indoor Unit Alpha 7,9,12, 17

8-2

WIRING DIAGRAMS

Revision Y05-02 Service Manual - ALPHA

8.2 Outdoor Unit CON 7

8.3 Outdoor Unit CON 7 with easy connection kit

8-3

WIRING DIAGRAMS

Revision Y05-02Service Manual - ALPHA

8.4 Outdoor Unit GCN 9, 12

8.5 Outdoor Unit GCN 9,12 with easy connection kit

REV: 03

8-4

WIRING DIAGRAMS

Revision Y05-02 Service Manual - ALPHA

8.6 Outdoor Unit ONG3-17 with and without easy connection kit

9-1

ELECTRICAL CONNECTIONS

Revision Y05-02Service Manual - ALPHA

9. ELECTRICAL CONNECTIONS

9.1 Alpha 7,9,12,17

10-1

REFRIGERATION DIAGRAMS

Revision Y05-02Service Manual - ALPHA

10. REFRIGERATION DIAGRAMS

10.1 Heat Pump Models

10.1.1 Alpha 7, 9, 12, 17 RC

HEATING MODE

Service

COOLING MODE

Service

Outdoor coil

Sensor

Capillary

tube

Strainer

Check

valve

OUTDOOR UNIT

valve

Reverse

tube

Capillary

Compressor

Outdoor coil

Sensor

tube

Capillary

Reverse

Strainer

valve

Compressor

tube

Capillary

Check

valve

OUTDOOR UNIT

INDOOR UNIT

Flared

connection

Valves

port

Indoor coil

Sensor

INDOOR UNIT

connection

Flared

Valves

port

Indoor coil

Sensor

10-2

REFRIGERATION DIAGRAMS

Revision Y05-02 Service Manual - ALPHA

10.2 Cooling Only Models

10.2.1 Alpha 7, 9, 12, 17

Outdoor coil

Strainer

Capillary

tube

Compressor

Service

port

OUTDOOR UNIT

connection

Valves

Flared

Indoor coil

Sensor

INDOOR UNIT

11-1

TUBING CONNECTIONS

Revision Y05-2Service Manual - ALPHA

11. TUBING CONNECTIONS

TUBE (Inch)

TORQUE (Nm)

¼” ⅜” ½” ⅝” ¾”

Flare Nuts 11-13 40-45 60-65 70-75 80-85
Valve Cap

13-20 13-20 18-25 18-25 40-50

Service Port Cap 11-13 11-13 11-13 11-13 11-13

1. Valve Protection Cap-end

2. Refrigerant Valve Port (use Allen wrench to open/close)

3. Valve Protection Cap

4. Refrigerant Valve

5. Service Port Cap

6. Flare Nut

7. Unit Back Side

8. Copper Tube

When the outdoor unit is installed above the indoor unit an oil trap is required every 5m along
the suction line at the lowest point of the riser. Incase the indoor unit is installed above the
outdoor, no trap is required.

12-1

CONTROL SYSTEM

Revision Y05-02Service Manual - ALPHA

12. CONTROL SYSTEM ALPHA 7, 9, 12, 17

12.1 Electronic Control

12.1.1 Introduction

The electronic control information is designed for service applications, and is common
to the following groups of air-conditioners:

● ST/ RC group -Cooling only / cooling and heating by heat pump.

● SH group

-Cooling and heating by heat pump and supplementary
heater.

● RH group -Cooling, heating by heaters only.

12.1.2 Jumpers Settings

GROUP J6 Setting J2 Setting

ST / RC

Open Open

SH Closed Open

RH Closed Closed

12-2

CONTROL SYSTEM

Revision Y05-02 Service Manual - ALPHA

12.2 Legend

AC - Alternate Current

A/C - Air-Conditioner
ANY - ON or OFF status
CLOCK - ON/OFF Operation Input, (dry contact)
COMP - Compressor
CPU - Central Processing Unit
ELUM - Extended Louver Upward Movement (Software Jumper)
E²PROM, EEP - Erase Enable Programmable Read Only Memory
HE - Heating Element
HPC - High Pressure Control
H/W - Hardware
ICP - Indoor Condensation Pump
ICT - Indoor Coil Temperature (RT2) sensor
IF, IFAN - Indoor Fan
IR - Infra Red
LEVEL1 - Normal Water Level
LEVEL2/3 - Medium/High Water Level
LEVEL4 - Overflow Level
Max - Maximum
Min - Minimum
min - Minute (time)
NA - Not Applicable
OCP - Outdoor Condensation Pump
OCT - Outdoor Coil Temperature (RT3) sensor
OF, OFAN - Outdoor Fan
OPER - Operate
Para. - Paragraph
RAT - Return Air Temperature (RT1) sensor
RC - Reverse Cycle (Heat Pump)
R/C - Remote Control
RCT - Remote Control Temperature
RH - Resistance Heater
RT - Room Temperature (i.e. RCT in IFEEL mode, RAT otherwise)
RV - Reversing Valve
SB, STBY - Stand-By
sec - Second (time)
Sect - Section
SH - Supplementary Heater
SPT - Set Point Temperature
ST - Standard (a Model with Cooling Only)
S/W - Software
TEMP - Temperature
W/O - Without

WVL - Water Valve
∆T - The difference between SPT and RT.

in Heat Mode: ∆T = SPT-RT
in Cool/Dry/Fan Mode: ∆T = RT-SPT

12-3

CONTROL SYSTEM

Revision Y05-02Service Manual - ALPHA

12.3 Main PCB Controller

12.3.1 COMPACT 7-12 (LEXAN) COMPACT 7-22 Display PCB

STBY LED IR RECIVER

MODE BUTTONOPR’ LED

STBY LED

OPR’ LED

IR RECIVER

MODE BUTTON

12-4

CONTROL SYSTEM

Revision Y05-02 Service Manual - ALPHA

12.4 General functions

12.4.1 COMP operation

For each Mode including POWER OFF & SB, a Min time delay of 3 min

before COMP restarting, excluding DEICING Mode

The Min operation time of COMP under different operating conditions is

Operation Mode

Min operation time of

COMP

Heat, Cool or Auto Modes

3 min.

Fan, Dry, Overflow, Protection modes, or mode change

ignored

12.4.2 IFAN operation

• Min time interval between IFAN speed change in AUTOFAN Mode, is 30 sec.

• Min time interval between IFAN speed change in H/M/L Mode is 1 sec.

• IFAN speed in Heat/Cool Autofan Mode is determined according to the following table:

∆T IFAN Speed

∆T ≥ 2 HIGH

2 ≥ ∆T ≥ 1 MED

1 ≥ ∆T LOW

where in Heat Mode: ∆T = SPT-RT

in Cool Mode: ∆T = RT-SPT

Note:

• In Heat Mode, the rules in section 4.0.3 have the higher priority.

• The table above can be represent by a hysteresis curve which

will minimize the switching of the IFAN relay and will minimize the
change in IFAN speed:

change in IFAN speed:

T [oc]

L

M

H

IFAN speed

32

1

12.4.3 OFAN operation

• Min time interval between OFAN ON/OFF state change is 30 sec.

• In general, OFAN starts together with COMP.

12.4.4 HE operation

• Minimum Heaters ON or OFF time is 30 sec.

• Heaters can be activated only if IFAN is on.

12-5

CONTROL SYSTEM

Revision Y05-02Service Manual - ALPHA

12.4.5 Protections

• High pressure protection is applicable to all operating modes.

• Deicing control is valid in Heat and Auto Heat Mode only.

• Defrosting control is valid in Dry, Cool, Heat and Auto Modes.

• No reset after protection modes.

12.4.6 Thermistors operation

• Return air Temp. is detected by RAT (RT1) in normal Mode, or by RCT (R/C sensor)
in I-FEEL Mode.

• Indoor Coil Temp. is detected by ICT (RT2).

12.4.6.1 Definition of thermistor faults:

a. Thermistor is disconnected -

The thermistor reading is below -30

o

c.

b. Thermistor is shorted -

The thermistor reading is over 75

o

c.

c. Thermistor Temp reading doesn’t change (irrelevant for RT1) -

(i) This test is performed only once after a unit is switched from

OFF/STBY to operation. At the first occurrence of 10 min
continuous COMP operation, the current ICT & OCT are
compared with those when the COMP was switched from OFF
to ON 10 min before. If the ∆T is less than 3oc, the thermistor is
regarded as defective.

(ii) The ICT and OCT no-change error can be disabled together by

connecting a4.7 kohm resistor (5%) to the OCT connector. These
resistors are equivalent to a thermistor at 43+/-1oc and 48+/-1oc
respectively.

(iii) Connecting a 4.7k resistor to the ICT connector will disable the

ICT no-change error only.

12-6

CONTROL SYSTEM

Revision Y05-02 Service Manual - ALPHA

12.4.6.2 Handling the thermistor faults in a COMP unit

i. ICT/OCT thermistor is disconnected or shorted -

The invalid thermistor temperature is replaced by 43oc, so that the unit
can continue the normal operation. All protections related to that faulty
thermistor will be disabled. For example, in case of any ICT fault, the ICT
high pressure protection in Heat Mode and ICT defrost protection in Cool
Mode will not operate anymore. The same is also applied to the OCT fault.

ii. RAT thermistor is disconnected or shorted –

The RAT will be derived from the ICT by using the equations :
Heat Mode: RAT=ICT/2.3

Cool Mode RAT=ICT*4

Notes:

• In case of any thermistor failure, the STBY LED will be blinking until the
fault condition is corrected.

• User can use the system diagnostics function to find out the nature of
the thermistor faults.

i. RAT thermistor is disconnected or shorted –

System will operate continuously in the last IFAN & WVL status when
turned ON.

Notes:

• As in the COMP unit, the STBY LED will be blinking to indicate a
thermistor fault. And, the user can use the system diagnostics function
to find out the nature of the fault.

12-7

CONTROL SYSTEM

Revision Y05-02Service Manual - ALPHA

12.5 Cooling Mode - General

1) Room Temperature, RT, is detected by

• RAT in normal operation, or

• RCT (R/C sensor) in I-FEEL mode.

2) The resolution of RT is 1oc.

• RT is activating COMP/WVL if (RT > SPT), and

• RT is stopping COMP/WVL if (RT =< SPT).

3) Indoor Coil Temp is detected by ICT (RT2).

4) Outdoor Coil Temp is detected by OCT (RT3).

5) OFAN OPERATIONS

• OFAN starts together with COMP in general.

12-8

CONTROL SYSTEM

Revision Y05-02 Service Manual - ALPHA

2.5.1 Cooling

Mode: Cool, Auto (at Cooling)
Temp: Selected desired temperature.
Fan: HIGH, MED, LOW
Timer: Any
I Feel: On or Off

Control function

Maintains room temp at desired level by comparing RT and SPT.

(RT - SPT) [oc]

+3

+2

+1

0

-1

-2

ON

OFF

ON

OFF

USER FAN SPEED

ON

OFF

COMP

(WVL)

OFAN

IFAN

RV

Note:

1) IFAN is always running at High, Medium or Low speed selected by user.

2) In IFEEL mode, the Room Temperature (RT) is the RCT from a R/C. Otherwise, the
RT is the RAT from the Room Thermistor.

12-9

CONTROL SYSTEM

Revision Y05-02Service Manual - ALPHA

12.5.2 Cooling with Autofan

Mode: Cool, Auto (at cooling)
Temp: Selected desired temperature
Fan: Auto
Timer: Any
I Feel: On or Off

Control function

Maintains room temp at desired level and controls the IFAN speed for optimal comfort.

(RT - SPT) [oc]

+3

+2

+1

0

-1

-2

ON

OFF

ON

OFF

H

L

M

ON

OFF

COMP
(WVL)

OFAN

IFAN

RV

12-10

CONTROL SYSTEM

Revision Y05-02 Service Manual - ALPHA

12.6 Heating Mode

12.6.1 Heating Mode - General

• In heating Mode, temp. compensation schedule will be activated for wall mounted

units.

SPT [oc]

Add to SPT

I-FEEL ON I-FEEL OFF
18 ≤ SPT ≤ 27 0 oc +2 oc
27 < SPT

≤ 30 0 oc +3 oc

Notes :

• No compensation will be activated in Forced operation modes

12.6.2 IF operating rules

• As a general rule for RC and SH groups, when COMP is ON, excluding

protection modes, IFAN will be switched ON if

• ICT > 35oc or
at the IFTC 30 sec after the COMP is switched ON. In
this case, the IFAN will be started at low speed.

Notes :

1) In SH or RC group, if HE is set to OFF due to low ICT, IFAN will be

switched to LOW and will be turned OFF after 30 sec.

2) An exception to this rule (4.0.3.a) is the Back-up mode for SH.

• In RC and SH groups, whenever COMP & HE are both

OFF, excluding protection modes, IFAN operation will be according

to the following:

In other models IFAN will operate in low speed for 30 sec and then stop. If

COMP is OFF for more than 3 minutes and IFEEL Mode is inactive, IFAN will
operate in low speed according to the following graph:

IFAN Speed

Any

Low

Stop

30 35 40

EMD/ELD

EMD/ELD

ICT [oc]

15 20 25

General :
For WAX :

SPT+4 SPT+6 ICT

[

o

c

]

ON

OFF

IFAN (Low Speed)

12-11

CONTROL SYSTEM

Revision Y05-02Service Manual - ALPHA

12.6.3 HE operation

• For all Groups, HE can be ON only when IFAN is ON.

• For all Groups, HE switches to OFF when ICT > 50 oc, and is activated

again when ICT ≤ 45

o

c.

• In SH or RC group, HE operation is limited by the following graph:

• Back-up mode for SH group

After COMP has been working for 5 minutes, HE & IFAN are activated even
if the ICT is still below 35

o

c. This situation is called Back-up Mode. Both

HE & IFAN will work in Back-up Mode until the ICT reaches 35

o

c. Then, the

operation goes on in the usual mode .

HE

ON

OFF

30

45 50

ICT [oc]

15

General :
For WAX :

35
20

40

12-12

CONTROL SYSTEM

Revision Y05-02 Service Manual - ALPHA

12.6.4 Heating, RC or SH Group

Mode: Heat, Auto (at heating)
Temp: Selected desired temperature
Fan: HIGH, MED, LOW
Timer: Any
I Feel: On or Off

Control function
Maintains room temp. at desired level by comparing RAT or RCT to SPT.

(RT - SPT) [oc]

+2

+1

0

-1

-2

-3

ON

OFF

ON

OFF

H/M/L

OFF

L

ON

OFF

Note 1 Note 2

COMP
(WVL)

HE1

HE2

IFAN

ON

OFF

RV

12-13

CONTROL SYSTEM

Revision Y05-02Service Manual - ALPHA

12.6.5 Heating, RC or SH Group with Autofan

Mode: Heat, Auto (at heating)
Temp: Selected desired temperature
Fan: Auto
Timer: Any
I Feel: On or Off

Control function
Maintains room temp at desired level by controlling COMP, IFAN and OFAN.

(RT - SPT) [oc]

+2

+1

0

-1

-2

-3

ON

OFF

ON

OFF

H

OFF

L

M

ON

OFF

Note 1 Note 2

COMP
(WVL)

HE1

HE2

IFAN

RV

ON

OFF

12-14

CONTROL SYSTEM

Revision Y05-02 Service Manual - ALPHA

12.6.6 OFAN operation is controlled by the graph below when

1. (RAT ≥ SPT – 2oc), AND

2. (ICT ≥ 45oc), AND

3. (COMP is ON)

Otherwise, OFAN runs together with COMP.

OCT [oc]

+3

+2

+1

0

-1

OFAN

ON

OFF

12-15

CONTROL SYSTEM

Revision Y05-02Service Manual - ALPHA

12.7 Automatic Cooling or Heating

12.7.1 Automatic Cooling or Heating - General

• Switching-temperature between Cooling and Heating is SPT ± 3oc.

• Autofan in Automatic Cooling and Heating Mode will activate “Cooling

with Autofan Mode” and “Heating with Autofan Mode” respectively.

• When the Auto Mode is started with SPT +/-0oc, the unit will not select
Auto Heat or Auto Cool mode immediately. Instead, the unit will be in
a temporary Fan Mode with IFAN operating at low speed.
The proper Auto Heat mode or Auto Cool will be started whenever the RT
reaches SPT-1oc or SPT+1oc respectively.

• For RC & SH units, Mode change between Auto Heat & Auto Cool
Modes is possible only after the COMP has been OFF during the
last T minutes.

Mode Change time, T

Auto Cool to Auto Heat

3 min

Auto Heat to Auto Cool 4 min

• When unit is changed form Cool/Dry mode to Auto Mode, the unit
will continue to operate at (Auto) Cool Mode until the conditions for
switching from Auto Cool to Auto Heat are satisfied.

Similarly, when unit is changed from Heat Mode to Auto Mode, the

unit will continue to operate at (Auto) Heat Mode until the conditions
for switching from Auto Heat to Auto Cool are satisfied.

12-16

CONTROL SYSTEM

Revision Y05-02 Service Manual - ALPHA

12.7.2 Auto Cooling or Heating, RC or SH Groups

Mode: Auto
Temp: Selected desired temperature
Fan: Any
Timer: Any
I Feel: On or Off

Control function
Maintains room temp at desired level by selecting between cooling and heating modes.

(RT - SPT) [oc]

+3

+2

+1

0

-1

-2

-3

ON

OFF

ON

OFF

H/M/L/OFF

L/OFF

ON

OFF

ON

OFF

COMP

& OFAN

HE1

HE2

IFAN

RV

H/M/L/OFF

L/OFF

USER FAN SPEED H/M/L/OFF

L/OFF

Auto Cool Mode

Auto Heat Mode

> 4 min > 3 min

> 3 min

> 2 min

(3) (3)

(4)

(4)

(5)

Auto Heat Mode

12-17

CONTROL SYSTEM

Revision Y05-02Service Manual - ALPHA

12.8 Dry Mode

12.8.1 Dry, ST or RC group

Mode: Dry
Temp: Selected desired temp
Fan: Low (automatically selected by software)
Timer: Any
I FEEL: Any

Control function
Reduce room humidity with minimum temp. fluctuations by operating in Cool Mode with
low speed IFAN.

Notes :

• When Dry is ON, the COMP is forced OFF for 3.5 min (longer than the
3 min Min COMP-Off time) after every 15 min of continuous COMP
operation.

• When Dry is OFF, the COMP is forced ON for 6 min (longer than the 3
min Min COMP-On time) after every 15 min of continuous COMP OFF
time.

• When Dry is changed from ON to OFF or vice versa, the limits
mentioned in (1) & (2) are ignored. The COMP operation is only
controlled by the 3 min Min OFF time and 1 min Min ON time.

• In Dry Mode, IFAN is LOW when COMP is ON, and is OFF when
COMP is OFF.

Mode with low speed IFAN.

DRY

(RT - SPT) [oc]

+2

+1

0

-1

-2

ON

OFF

ON

OFF

LOW

OFF

DRY-ON

DRY-OFF

ON

OFF

Time [min]

10

20

30

40 50

Max 15 minutes

3.5
min

Note1

6 min

Note 2

COMP

& OFAN

HE1

& HE2

IFAN

RV

Max 15 minutes

5 minutes COMP

ON time

12-18

CONTROL SYSTEM

Revision Y05-02 Service Manual - ALPHA

12.9 Protection

12.9.1 Cooling Mode Protections

Indoor Coil Defrost

Mode: Cooling, Dry, Auto
Temp: Selected desired temp.
Fan: Any
Timer: Any
I Feel: On or Off

Control Function
Protect the indoor coil from ice formation at low ambient temperature.

t1 = 5 min minimum for each COMP starting
t2 = OFAN cycling (alternate between ON and OFF every 30 sec) for 20 min
maximum
t3 = COMP and OFAN stop for 10 min minimum

Notes:

• When J7 is closed (connected), OFAN cycling is cancelled and the
set temperature for COMP & OFAN cut-out and cut-in are changed.
COMP & OFAN are forced OFF when ICT =< -6

o

c, and are kept OFF

until ICT > 14oc.

• For WAX model, the defrost processes is simpler. When J7 is open,
COMP & OFAN are forced OFF when ICT =< -1

o

c, and are kept OFF
until ICT > 5oc. When J7 is closed, the WAX defrosting process is the
same as that of the other models (R.H.S. of the graph above). In both
cases, the ICT checking in t2 and t3 are not applied.

ICT [oc]

+2

ON

OFF

ON

OFF

t1

t2

t3

COMP

OFAN

+1

+5

+14

0

-1

-6

ON

OFF

IFAN

J7 OPEN

J7 CLOSED

t1

t1

12-19

CONTROL SYSTEM

Revision Y05-02Service Manual - ALPHA

12.9.2 High Pressure Protection

Mode: (Auto) Cooling or Dry
Temp: Selected desired temp.
Fan: Any
Timer: Any
I Feel: On or Off

Control Function
To protect the COMP from the high pressure built-up in the outdoor coil during normal
cooling operation, by switching OFF the IFAN and COMP.

OCT [oc]

Any

OFF

Any

ON

Any

Blink

ON

COMP

OFAN

IFAN

OPER

LED

52

55

61

66

L

COMP is forced OFF

OFAN is forced ON

IFAN forced

to LOW

68

OFAN follow operation of

COMP

COMP is forced OFF

OFAN is forced ON

For all models except WAX & P2000

For WAX & P2000 models

Note:

• The ICT is also monitored during Cool and Dry mode, in case the RV control circuit
is faulty. Whenever ICT reaches 70

o

c, which indicates a high pressure in the indoor
coil, the COMP will be forced off automatically. The COMP can be turned on again only
after the ICT is under 70

o

c again and after the 3 min COMP ON delay time. The OPER

LED will not blink in this case.

12-20

CONTROL SYSTEM

Revision Y05-02 Service Manual - ALPHA

12.9.3 Heating Mode Protections

Outdoor coil Deicing (excluding RH Group)

Mode: Heating, Auto (at heating)
Temp: Selected desired Temp
Fan: Any
Timer: Any
I FEEL: Any

Control function

Protects the Outdoor coil from ice formation by controlling COMP & RV operation.

Scope

This new deicer is designed to operate at extreme temp conditions. The deicing cycle
could be triggered from:

1. OCT temp and time between two consecutive deicing cycles.

2. Detection of ice forming by change of the OCT temp.

Both algorithms adjust the time between deicing cycles to optimize the A/C
performance. The algorithm will automatically increase the time between deicing cycles
and reduce the deicing cycle as needed.

The algorithm uses EEPROM data to operate.

12-21

CONTROL SYSTEM

Revision Y05-02Service Manual - ALPHA

Deicing procedure

OCT [oc]

ON

OFF

ON

OFF

ON

L

ANY

COMP

OFAN

RV

IFAN

DST

(DDT)

0

12

OFF

HEs are forced ON

DOC

ANY

ON

HE

36s

36s

DT

30s

max 12 min.

Note 3

DI (note 1)

DI (note 2)

30s

3 min

3 min

IFAN

OFF

ANY

HE

OFF

ANY

all SH units

except WAX

RC or WAX units

HEs are forced OFF

IFAN is forced to Low Speed

BLINK

ON

OPER

LED

Notes :

• At the first COMP activation after SB or OFF, if (OCT < 0

o

c), then DI = 10

min, else DI = 40 min.

• In the following Deicing cycles, the time interval between two Deicing
cycles activation is between 30 to 80 min (refer to the flow chart).

• For RC group, HEs are forced OFF. IFAN operation is as in Heat

Mode, Sect 4.0.3.a, i.e. IFAN will be set to OFF when ICT<30

o

c.

For WAX, the IFAN is simply forced OFF.

• For SH group, HEs are forced ON and IFAN is forced to operate in Low
speed, regardless of the ICT and difference between RAT & SPT.

12-22

CONTROL SYSTEM

Revision Y05-02 Service Manual - ALPHA

12.9.4 High pressure protection (excluding RH Group)

Mode: (Auto) Heating
Fan: Any
Timer: Any
I Feel: On or Off

Control Function

Protect the Compressor from high pressure by switching OFF the OFAN and COMP.

ICT [oc]

Any

Off

Any

Off

COMP

OFAN

52

55

61

66

COMP is forced OFF

67

OFAN is force

Off

COMP is forced OFF

For all models except WAX

For WAX model

ON

BLINK

OPER

LED

Notes:

• IFAN, HE1 and HE2 will be activated according to the relevant
Heating Mode Sect.

• In case of any malfunction in the relay control circuit, the OCT is also
monitored during heating mode. Whenever OCT reaches 70

o

c, which indicates
a high pressure in the outdoor coil, the COMP will be forced off automatically.
The COMP can be turned on again only after the 3 min COMP ON delay and the
OCT is under 70

o

c. The OPER LED will not blink in this case.

12-23

CONTROL SYSTEM

Revision Y05-02Service Manual - ALPHA

12.10 Timer

Mode: Any
Temp. Selected desired temp
Fan: Any
Timer: Timer On, Timer Off
I Feel: On or Off

Control function

• Starts or stops the unit operation after pre-set time. If RC-1 is used,
the timer setting will be (0.5 - 24 Hr) from the moment the timer is set.
The minimum resolution is 30 minutes.

If RC-2 or later version of remote controls is used, the timer

setting will be (0:00 - 23:50) real time with 10 minutes resolution.

• After power failure, all pre-set timers are cleared. The system is
forced to STBY mode and the Timer LED indicator is blinked to
indicate the situation. The LED keeps blinking until the timer settings
can be reloaded from a R/C message.

Note: If all timers are inactive, the system will not be forced
OFF after the power failure. The last OPER/STBY status will
be loaded from the EEP instead.

• When the A/C receives any valid message from a R/C, the current
ON/OFF timer settings will be replaced by the new timer settings in
the R/C message.

Note: The following timer related operations will not affect the
A/C operating mode (Heat/Cool/Auto/Dry/Fan) setting.

• Set ON/OFF timer

• Clear ON/OFF timer

• R/C ON Timer is time-up

• R/C OFF Timer is time-up

E.g. When a STBY A/C unit (with Cool Mode setting in its EEP) is

turned on by the ON-TIMER of a R/C with heat mode setting,
the A/C will start in Cool Mode.

12-24

CONTROL SYSTEM

Revision Y05-02 Service Manual - ALPHA

12.11 Forced Operation

Forced operation allows units to start, stop and operate in Cooling or Heating in pre-set
temperature according to the following table:

Forced operation

mode

Pre-set Temp for :

WMZ, WMF,WNG models

Cooling 22°C

Heating 28°C

Note:

•

While under the forced operation, the temperature compensation

schedule.

• The forced operation is activated when the mode button on the
Display Board is used to switch the unit to Cool or Heat mode.

• The IFAN is always set to Autofan Speed in forced operation.

12-25

CONTROL SYSTEM

Revision Y05-02Service Manual - ALPHA

12.12 Sleep Mode

Mode: Any
Temp: Set – desired temperature selected
Fan: Any
Timer: Interact with Sleep Timer as described in sect 12.2
I Feel: On or Off

The Sleep mode is activated by using the sleep button on the R/C. In Sleep Mode,
the unit will automatically adjust the SPT to turn up/down the room temperature (RT)
gradually to provide maximum comfort to the user in sleep.

Sleep is treated as TIMER function. Therefore, the TIMER LED is activated similar to
TIMER function.

12.12.1 Adjustment in Sleep Mode

1. in cool, auto cool or dry modes, the SPT adjustment is positive (from 0 to +3oc).

2. In heat or auto heat modes, the SPT adjustment is negative (from 0 to -3

o

c).

3. In other modes, there is no SPT adjustment.

4. The SPT adjustment is cancelled when the Sleep mode is cancelled.

Note: If Off-timer is active, the unit may go to SB before or after 7 hours of

sleep operation.

SPT

Time [Hr]

4 8532 6

Start

Sleep

7

RT

SPT-1

SPT-2

SPT-3

SPT+2

SPT+1

SPT+3

1

7 Hours Sleep operation

for Normal Sleep Mode

Unit is turned to SB

after Sleep

Cool, Dry modes

Heat mode

12-26

CONTROL SYSTEM

Revision Y05-02 Service Manual - ALPHA

12.12.2 Time adjustment in Sleep Mode

The user can make use of the Off-Timer to extend the Sleep Time from 7 hours to 12
hour (max). The operation of the new “Extended Sleep Mode” is illustrated by the
graphs below.

Case 1 is the Standard Sleep Mode, which is the only sleep mode in previous version
of MCU. The A/C unit simply works for 7 hours, then goes to SB.

Case 2 is the new Extended Sleep Mode. If an active Off-Timer is set to turn off the
A/C between 7-12 hour, relative to the starting of Sleep, the Sleep time is extended.

And, instead of going to SB at the 7th hour, the A/C will work until reaching the Off-time.

Case 3 is an exception to case 2. The Sleep Mode will not be extended to the Off-Time
when the Off-Timer is preceded by an On-Timer, which is also between 7-12 hour.

Oper

Time [Hr]

4 8 10 122 6

Start

Sleep

7

Case 1 : Standard Sleep Mode

Condition : Off-timer is not set or is beyond 12 hour.

SB

Oper

Time [Hr]

4 8 10 122 6

Start

Sleep

7

Case 2 : Extended Sleep Mode

Condition : Off-timer is set at 7-12 hour.

SB

Off-timer

Oper

Time [Hr]

4 8 10 122 6

Start

Sleep

7

Case 3 : Exception to Case 2

Condition : Off-timer is set at 7-12 hour

On-timer is set at 7-12 hour and before Off-timer

SB

Off-timerOn-timer

12-27

CONTROL SYSTEM

Revision Y05-02Service Manual - ALPHA

12.13 Controller Self-Test Procedure

12.13.1 By Shorting Test Jumper J1

RC/ST TEST

MODEL

CONFIGURATION

TEST

STEP MOTOR TEST

FREQUENCY

TEST

LEDS OFF

LEDS ON TEST

AUTO RELAY

TEST

SHORT JUMPER

J1

(CONTROL PCB)

PRESS ON

POWER

BUTTON

PRESS ON

MODE BUTTON

INDOOR FAN
SPEED TEST

SELF-TEST FLOW CHART

Step 1

Step 2

Step 3

FOR CONTROLLER (VERSION 4V5 OR HIGHER)

COOL

HEAT

COMPRESSOR

OUTDOOR FAN

R.V.

LOW

MEDIUM

HIGH

TIMER

OPERATE

STANDBY

BUZZER TEST

(ONE BEEP SOUND)

REMOTE CONTROL

TO CPU COMUNICATION

(TWO BEEPS SOUNDS)

THERMISTOR ANALOG

VOLTAGE CHECKING

EEPROM MEMORY

TEST

END OF SELF

TEST

PRESS ON RESET

BUTTON

PRESS ON FAN

BUTTON ON THE

REMOTE CONTROL

PRESS ON MODE

BUTTON

PRESS ON MODE

BUTTON

Step 4

Step 5

Step 6

Step 7

Step 8

DISCONNECT

JUMPER

J1

12-28

CONTROL SYSTEM

Revision Y05-02 Service Manual - ALPHA

12.13.2 By Remote Control Settings:

a. 1: TURNING ON THE POWER.

Turn ON the power, make sure that the unit is in operation.

b. STEP 2 : ENABLE SELF-TEST MODE

• Use the remote control to send the first settings to display / indoor unit

HEAT mode, HIGH IFAN, set temperature to 16 ºC, no I-FEEL Sleep or
any other timer settings are needed.

• Cover the IR transmitter components in the remote control so that it will
not transmit the signals to the indoor unit display.

• Use the remote control to send the second settings to display / indoor unit
COOL mode, LOW IFAN, no I-FEEL Sleep or any other timer settings.

• Uncover the remote control IR transmitter and change the temperature
settings. If the display/indoor unit receive the settings properly the
following steps will start:

c. STEP 3: MODEL SETTING CONFIRMATION

• The STAND-BY and COOL LEDS will indicate the operation mode as
follows:

OPERATION MODE STAND-BY LED COOL LED

ST ON OFF

RC OFF OFF

SH OFF ON

RH ON ON

• Testing the Model configuration. Selected by the COMP, STAND-BY,
TIMER LEDS and FILTER will indicate the model configuration as follows
(the relevant line for this manual is highlighted):

MODEL COMP OPERATE LED TIMER LED FILTER LED

WNG ON OFF OFF OFF

WMZ ON ON OFF ON

WMN4 OFF OFF ON OFF

WMN2/WHX OFF ON OFF ON

WMN3 OFF ON ON ON

In this term the step motor will turn to HOME POSITION.

12-29

CONTROL SYSTEM

Revision Y05-02Service Manual - ALPHA

d. STEP 4 : AUTO LED WALK TEST.

• All the LEDS will turn OFF.

• All the LEDS will turn ON for 1 second one by one in the following

sequence:

STAND-BY

 OPERATE  TIMER  FILTER  COOL  HEAT.

• In PRX all the LEDS will turn ON for 1 second one by one in the following
sequence : 18 °c  20 °c  22 °c  24 °c  26 °c  28 °c  30 °c 
High IFAN  Auto IFAN  Med IFAN  Low IFAN  STAND-BY
TIMER  FILTER COOL HEAT.

e. STEP 5: AUTO REALY WALK TEST:

• All relays will energize one by one in the following sequence:

COMPRESSOR  OUTDOOR FANR. V.  HEATER 1  HEATER 2
 INDOOR WATER PUMP  SWING or OUTDOOR WATER PUMP 
INDOOR FAN: LOW

 MID  HIGH.

• When the relay walk test is completed, the next test will start
automatically.

f. STEP 6: FREQUENCY TESTING:

• If the frequency measuring process fails the COOL LED will turn ON.
In order to move to the next step, press ON/OFF button on the remote
control.

g. STEP 7: INPUT TEST.

• The test purpose is to check the analog real time indicators (thermistors,
LEVEL and clock) according to the table below.

LED Indicator Condition for LED to be ON

STBY LED Room thermistor ≠ 25°c
OPER LED Indoor coil thermistor ≠ 25°c
TIMER LED Outdoor coil thermistor ≠ 25°c
FILTER LED

Clock
COOL LED LEVEL 2&3
HEAT LED LEVEL 4

h. STEP 8: TIMING RESET TEST (WATCH DOG).

• The test purpose is to verify that the CPU rise time after power failure
is between 1 to 3 sec, test results are indicated on the LEDS : STAND­BY,OPER, TIMER and FILTER turning ON one by one.

• The results of the test are coded as follows:

Pass condition:

1 sec - STAND-BY and OPER are turned ON

2 sec - STAND-BY, OPER and TIMER are turned ON

12-30

CONTROL SYSTEM

Revision Y05-02 Service Manual - ALPHA

Fail condition:

0 sec - STAND-BY is turned ON

3 sec - STAND-BY, OPER, TIMER and FILTER are turned ON

• When the timing reset test is completed, the next test will start
automatically.

i. STEP 9: MEMORY TEST (EEPROM)

• The test purpose is to check if the memory is functioning correctly. The test
result is reported by using the STAND-BY and FILTER LEDS:

LED Indicator Condition for LED to be ON

STAND-BY LED Test passed

FILTER LED Test failed

AT THIS POINT THE SELF-TEST IS COMPLETED.

In order to terminate Self-Test mode the User can change the unit setting from COOL
Mode, LOW FAN to COOL Mode, MED FAN or to wait without using the remote control
for 60 sec.

Values of Sensors Temperature VS. Voltage (DC)

Temp. (*C) Voltage (V) Temp. (*C) Voltage (V) Temp. (*C) Voltage (V) Temp. (*C) Voltage (V)

-20 4.554 2 3.744 24 2.555 46 1.487

-19 4.529 3 3.695 25 2.5 47 1.447

-18 4.502 4 3.646 26 2.445 48 1.409

-17 4.475 5 3.595 27 2.391 49 1.371

-16 4.446 6 3.544 28 2.338 50 1.334

-15 4.417 7 3.492 29 2.284 51 1.298

-14 4.386 8 3.439 30 2.232 52 1.263

-13 4.354 9 3.386 31 2.18 53 1.228

-12 4.322 10 3.332 32 2.128 54 1.195

-11

4.287 11 3.278 33 2.077 55 1.162

-10 4.252 12 3.223 34 2.027 56 1.13

9 4.216 13 3.168 35 1.978 57 1.099

-8 4.178 14 3.113 36 1.929 58 1.069

-7 4.14 15 3.058 37 1.881 59 1.04

-6 4.1 16 3.002 38 1.834 60 1.011

-5 4.059 17 2.946 39 1.798 61 0.983

-4 4.017 18 2.89 40 1.742 62 0.956

-3 3.974 19 2.833 41 1.698 63 0.929

-2 3.93 20 2.777 42 1.654 64 0.904

-1 3.885 21 2.722 43 1.611 65 0.879

0 3.839 22 2.666 44 1.569 66 0.854

1 3.792 23 2.61 45 1.527 67 0.831

12-31

CONTROL SYSTEM

Revision Y05-02Service Manual - ALPHA

12.14 On Unit Indicators and Controls

STAND BY

INDICATOR

Lights up when the Air Conditioner is connected to power and
ready to receive the R/C commands
Blinks continuously in case of any thermistor failure.

OPERATION

INDICATOR

Lights up during operation.
Blinks for 300 ms, to announce that a R/C infrared signal has
been received and stored.
Blinks continuously during

• OCT High Pressure Protection Mode

• ICT High Pressure Protection Mode

• Deicing in Heating Mode

• Water Over Flow in ECC Model

MODE BUTTON
(Cool, Heat, SB)

Use to cycle the operation mode of the A/C unit among COOL,
HEAT and SB modes, without using the R/C.
Every time this switch is pressed, the next operation mode is
selected, in this order :
SB  Cool Mode  Heat Mode  SB  ...
Press this button continuously for 5 sec or more to start the
Diagnostic Mode.

12-32

CONTROL SYSTEM

Revision Y05-02 Service Manual - ALPHA

12.15 Clock Random Delay From 0 to 2.5 seconds

0 = Clock Switch Open
1 = Clock Switch close

The Clock is activate according to the following table:

A/C STATE

(before clock is changed)

CLOCK STATE

(before clock is changed)

CLOCK ACTION

(clock is changed)

A/C NEW STATE

(after clock is changed)

ON 1 0 OFF

OFF 0 1 ON

OFF by

interrupt

(1)

1 0 OFF

ON by

interrupt

(1)

0 1 ON

Notes :

1. Clock can be interrupted by :

• R/C - POWER ON/OFF Push-button.

• R/C - TIMER.

• R/C - SLEEP.

• A/C - MODE SWITCH.

2. Any change in the CLOCK level during the first 6 sec after the system
Reset is ignored.

13-1

TROUBLESHOOTING

Revision Y05-02Service Manual - ALPHA

13. TROUBLESHOOTING

NO SYMPTON PROBABLE CAUSE CORRECTIVE ACTION

1. The stand-by
indicator (red led)
on the central
control display
panel doesn’t light
up.

There is no correct voltage
between the line and neutral
terminals on main P.C.B

-If the voltage is low repair power
supply.

-If there is no voltage repair
general wiring.

-If there is correct voltage replace
main or display P.C.B’S

2. The operation
indicator (green
led) on the central
control display
panel does not
light up.

The remote control batteries
are discharged

-Replace batteries of the remote
control.

3. The operation
indicator (green
led) does not light
up when starting
from unit.

Check main P.C.B and display
P.C.B

-Replace P.C.B if necessary.

4. The indoor fan
does not function
correctly.

Check the voltage between
indoor fan terminals on the
main P.C.B

-If there is voltage replace
capacitor or motor.

5. The outdoor fan
does not function
correctly.

Check the voltage between out
door fan terminals on the main
P.C.B

There is voltage between
outdoor fan terminals on the
outdoor unit.

There is no voltage between
outdoor fan terminals on the
outdoor unit.

-If there is no voltage replace main
P.C.B

-Replace capacitor or motor.

-Check and repair electrical wiring
between indoor and outdoor units.

6. The compressor
does not start up.

Check voltage on compressor
terminals on the outdoor unit.
(with ammeter)

Check if there is correct voltage
between compressor terminals
on the outdoor unit.

-If no voltage replace main P.C.B

-If low voltage repair power supply.

-If the voltage correct replace
capacitor or compressor.

-If there is no voltage repair
electrical wiring between indoor
and outdoor units.

7. The refrigeration
system does not
function correctly.

Check for leaks or restrictions.
With ammeter. Pressure gauge
or surface thermometer.

-Repair refrigeration system and
charge refrigerant if necessary.

13-2

TROUBLESHOOTING

Revision Y05-02 Service Manual - ALPHA

NO SYMPTON PROBABLE CAUSE CORRECTIVE ACTION

8 No cooling or

heating only
indoor fan works.

Outdoor fan motor faulty or
other fault caused, compressor
overload protection cut out.

-Replace P.C.B.

-Outdoor fan blocked remove
obstructions.

9. Only indoor fan
and compressor
working.

Outdoor fan blocked. -Remove obstructions.

10. Only indoor fan
working.

-Run capacitor of outdoor fan
motor faulty.

-Windings of outdoor fan are
shorted.

-Replace capacitor.

-Replace motor.

11.

No cooling or
heating takes
place, indoor fans
working.

-Overload safety device on
compressor is cut out (low
voltage or high temperature).

-Compressor runs capacitor
faulty.

-Compressor windings are
shorted.

-Check for proper voltage, switch
off power and try again after one
hour.

-Replace compressor capacitor.

-Replace compressor.

12. No air supply
at indoor unit,
compressor
operates.

-Indoor fan motor is blocked or
turns slowly.

-Indoor fan run capacitor faulty.

-Motor windings are shorted.

-Check voltage, repair wiring if
necessary.

-Check fan wheel if it is tight
enough on motor shaft, tighten if
necessary.

13. Partial, limited air
supply at indoor
unit.

Lack of refrigerant (will
accompanied by whistling
noise) cause ice formation on
indoor unit coil in cooling mode.

-charge the unit after localizing
leak.

14. Water
accumulates
and over flow
from indoor unit
section.

Drain tube or spout of drain pan
clogged.

-Disassemble plastic drain tube
from spout of indoor unit drain pan.

15. Water dripping
from outdoor unit
base, (in heating
mode).

Water drain outlet is clogged.

-Open outdoor unit cover clean out
water outlet clean the base inside
thoroughly.

16. Freeze-up of
outdoor coil in
heating mode,
poor heating effect
in room, indoor fan
operates.

-Faulty outdoor thermistor.

-Faulty control cable.

-Outdoor temperature is below
design conditions.

-Outdoor unit air outlet is
blocked.

-Replace thermistor.

-Repair control cable.

-Shut unit off, it cannot work
properly.

-Remove obstructions.

17. Unit is in heat
mode but
operating in
cooling.

-Faulty RV coil.

-RV coil is ok valve is stuck
position.

-Replace RV coil.

-Replace the reversing valve.

14-1

EXPLODED VIEWS AND SPARE PARTS LISTS

Revision Y05-02Service Manual - ALPHA

14. EXPLODED VIEWS AND SPARE PARTS LISTS

14.1 Indoor Unit Alpha 7, 9, 12

5

6

7

14-2

EXPLODED VIEWS AND SPARE PARTS LISTS

Revision Y05-02 Service Manual - ALPHA

14.2 Indoor Unit Alpha 7, 9

No. Part No. Description Qty

4525979 Grille A

1

4527484 Grille B

1

4527485 Grille C

1

2

4525989

A

ir Filter

2

3

4523901

A

ctive Carbon Filter (Optional)

2

4

4525990 Filter Support (Optional)

2

4527003 Printing Frame “Electra”for Isreal

1

4527004 Printing Frame “Fagor”

1

452700501

Printing Frame “AIWELL”

1

452700502 Printing Frame “GORNEJE”

1

452700503 Printing Frame “Belair”

1

452700504 Printing Frame “Relax”

1

452700505 Printing Frame “No brand”

1

452700506 Printing Frame “OCEAN”

1

452700507 Printing Frame “BOSCH”

1

452700508 Printing Frame “SIEMENS”

1

452700509 Printing Frame “Electra”for European

1

452700510 Printing Frame “Climair”

1

452700511 Printing Frame “Johnson”

1

6

4525987 Screw Cover

3

7

453070700 Coil Assy.

1

8

126233 Nut brass 1/4’

1

9

434530 Nut brass 3/8’

1

10

4523526 Beraing Assy.

1

11

4523523 Fan Assy. Plastic

1

12

4523505 Motor IOD-7

1

4527112 Motor IOD-9

1

4526649

A

ir Outlet Assy. (Israel market)

1

452784400

A

ir Outlet Assy.(except Israel market) 1

14

4525991 Louver

1

15

4523693 Drain Hose

1

16

4526659 Rear Panel Assy.

1

17

453027400 Mount Bracket

1

18

4526000 Tube Clip

1

19

4523507 Step Motor

1

20

438600 Remote Controller RC3

1

412040 Remote Controller RC5-RC 1
4526132 Power Cord Cable(Iseral)

1

4526133 Power Cord Cable(Europe 2m)

1

4524040 Power Cord Cable(Austrilia)

1

4526134 Power Cord Cable(no plug)

1

4526136 Power Cord Cable(Europe 3m)

1

22 4525998 Motor Cover 1
23

4516263 Sensor Base 1

24

452778400 Display Assy

1

25

452778300 Control Box Assy.

1

453124100 Control Box Assy. (easy connecter)

1

4525988 Cable Locker

1

27

436525 Cable Locker

1

28

438082 Thermistor Indoor Coilblack

1

29

4519813 Thermistor Roomred

1

30

453027000 Terminal Cover

1

21

26

1

5

13

14-3

EXPLODED VIEWS AND SPARE PARTS LISTS

Revision Y05-02Service Manual - ALPHA

14.3 Indoor Unit Alpha 12

No. Part No. Description Qty

4527501 Grille A

1

4527502 Grille B

1

4527503 Grille C

1

2

4527507

A

ir Filter

2

3

4527359

A

ctive Carbon Filter (Optional)

2

4

4527508 Filter Support (Optional)

2

452766800 Printing Frame “Electra”for Isreal

1

452766801 Printing Frame “AIRWELL”

1

452766802 Printing Frame “GORNEJE”

1

452766803 Printing Frame “Belair”

1

452766804 Printing Frame “Relax”

1

452766805 Printing Frame “Electra”for Europent

1

452766806 Printing Frame “Fagor”

1

452766807 Printing Frame “No brand”

1

452766808 Printing Frame “OCEAN”

1

452766809 Printing Frame “BOSCH”

1

452766810 Printing Frame “SIEMENS”

1

452766811 Printing Frame “Johnson”

1

6

4525987 Screw Cover

3

7

453058200 Coil Assy.

1

8

126233 Nut brass 1/4’

1

9

434530 Nut brass 3/8’

1

10

4523526 Beraing Assy.

1

11

4527111 Fan Assy. Plastic

1

12

4527112 Motor IOD-12

1

4527187

A

ir Outlet Assy. (Israel market)

1

452784401

A

ir Outlet Assy.(except Israel market)

1

14

4527509 Louver

1

15

4523693 Drain Hose

1

16

4527186 Rear Panel Assy.

1

17

453027500 Mount Bracket

1

18

4527512 Tube Clip

2

19

4523507 Step Motor

1

20

438600 Remote Controller RC3

1

412040 Remote Controller RC5-RC

1

4526132 Power Cord Cable(Iseral)

1

4526133 Power Cord Cable(Europe 2m)

1

4524040 Power Cord Cable(Austrilia)

1

4526134 Power Cord Cable(no plug)

1

4526136 Power Cord Cable(Europe 3m) 1

22 4525998 Motor Cover 1
23

4516263 Sensor Base 1

24

452778400 Display Assy.

1

452778300 Control Box Assy.

1

453124100 Control Box Assy. (easy connecter)

1

26

4525988 Cable Locker

1

27

436525 Cable Locker

1

28

438082 Thermistor Indoor Coilblack

1

29

4519813 Thermistor Roomred

1

30

453027000 Terminal Cover

1

1

5

13

21

25

14-4

EXPLODED VIEWS AND SPARE PARTS LISTS

Revision Y05-02 Service Manual - ALPHA

14.4 Indoor Unit Alpha 17

14-5

EXPLODED VIEWS AND SPARE PARTS LISTS

Revision Y05-02Service Manual - ALPHA

14.5 Indoor Unit Alpha 17

NO. Part NO. Name Quantity

1 453080700 Grill A/ALPHA-17 1
2 453080800 Filter 2
3 4518113

Active Carbon Filter (Optional)

2

4 465720011 Front Frame Assy./ALPHA-17 electra for ISREAL 1

465720010 Front Frame Assy./ALPHA-17

electra for EURO. 1

453101700 Front Frame Assy./ALPHA-17 Johnson 1
5 453081000 Screw Cover 3
6 453102200 Evaporator Assy. 1
7 4518662 Bearing assy fan 1
8 453082400 Impeller Fan 1
9 453102000 LED Display assy./ALPHA-17 1

10 453101600 Air Outlet Frame Assy./ALPHA-17 1
11 4518664 Drain hose 1
12 453101400 Unit Housing Assy./ALPHA-17 1
13 453081900 Mount Bracket Assy. 1
14 4526000 TUBE CLIP 1
15 438600 Remote controller RC3-RC 973-600-00 1
16 4523507 Step motor 1
17 452766401 Power Cord European 2m optional

1

452766400 Power Cord Israel 2m optional

1
18 4518651 Cover Side Motor 1
19 453102100 Resin Motor/ 18W/1200rpm�1000rpm 1
20 452918800 Cover/motor 1
21 453101900 Control Box Assy./ALPHA-17 1

457300010 Controller/Alpha 17, With 5 Poles of Terminal 1

457300011 Controller/Alpha 17, With 6 Poles of Terminal 1
22 4525988 CABLE LOCKER 1
23 436525 SUPPLY CORD LATCH WMN 1
24 438082 Thermistor Indoor coil�BLACK� 1
25 4519813 Thermistor room 1
26 453027000 Terminal Cover 1

14-6

EXPLODED VIEWS AND SPARE PARTS LISTS

Revision Y05-02 Service Manual - ALPHA

14.6 Outdoor Unit CON 7 RC

3

4

5

6

7

8 9 10 11

12

13

14

15

16

17

18

19

2

33

32 31

29

30

28

20

21

22

23

24

27

25

26

14-7

EXPLODED VIEWS AND SPARE PARTS LISTS

Revision Y05-02Service Manual - ALPHA

14.7 Outdoor Unit CON 7 RC

No. Part No. Description Qty

1 436358 L.lifter 1
2 4526671 Front Panel 1
3 4526481 CON Outdoor Grille 1
4 4527483 Screw ST4X10-C-H DK>9 1
5 453044400 Partition plate 1
6 4525427 Clip for capacitance 1
7 455000108 Double patch Capacitor for fan motor 2uF 1
8 236179 2 Poles Terminal Block 1

9 453057000 Pedestal/Control 1
10 4514588 5 Poles Terminal Block 1
11 453054500 Clip/cables 1
12 455000502 Compressor Capacitor With Screw 25uF (CBB65) 1
13 453056700 Rubber grommet/base plate 4
14 452964500 Compressor Assy. PA82X1C-4DZDE(R410A GMCC) 1
15 4510677 Nut With Flange M8 -D=24 GB6187-86 3
16 4524278 Wire assy 1
17 4516637 Out sensor Black 1
18 453045400 Base Plate 1
19 453046100 Low Pressure Stop Valve OD9.53 R410A 1
20 453046200 High Pressure Stop Valve OD6.35 R411A 1
21 4520071 4-W Valve coil for R410A 1
22 453044200 4-W Valve Welding assy 1
23 4518951 4-W valve SHF-4H for R410A 1
24 453045600 Capillary assy 1
25 4526669 Side Panel Painting 1
26 4526668 R lifter 1
27 453057500 Condenser Assy 1
28 4526143 Linker of motor support assy 1
29 453045000 Motor Support 1
30 4523609 Motor YDK20-6L 1
31 4523707 AXIAL FAN 1
32 4526675 Top Cover Painting 1
33 453121500 Install Accessory 1

14-8

EXPLODED VIEWS AND SPARE PARTS LISTS

Revision Y05-02 Service Manual - ALPHA

14.8 Outdoor Unit CON 7 ST

3

5

4

6

7

8

9

10

11

12

13

14

15

16

17

18

2

32

31 30

28

29

27

19

20

21

22

23

26

24

25

14-9

EXPLODED VIEWS AND SPARE PARTS LISTS

Revision Y05-02Service Manual - ALPHA

14.9 Outdoor Unit CON 7 ST

No. Part No. Description Qty

1 436358 L.lifter 1
2 4526671 Front Panel 1
3 4526481 CON Outdoor Grille 1
4 4527483 Screw ST4X10-C-H DK>9 1
5 453044400 Partition plate 1
6 4525427 Clip for capacitance 1
7 455000108 Double patch Capacitor for fan motor 2uF 1
8 453057000 Pedestal/Control 1
9 4514588 5 Poles Terminal Block 1
10 453054500 Clip/cables 1
11 455000502 Compressor Capacitor With Screw 25uF (CBB65) 1
12 453056700 Rubber grommet/base plate 4
13 452964500 Compressor Assy. P

A

82X1C-4DZDE(R410A GMCC) 1
14 4510677 Nut With Flange M8 -D=24 GB6187-86 3
15 4524278 Wire assy 1
16 453183600 Discharge Pipe Assy 1
17 453045400 Base Plate 1
18 453046100 Low Pressure Stop Valve OD9.53 R410

A

1

19 453046200 High Pressure Stop Valve OD6.35 R411

A

1
20 453112700 Connect Pipe 6.35X0.8 1
21 453126300 Capillary 2.6X1.4X1400 1
22 453112600 Suction Pipe 2 1
23 453112400 Suction Pipe 1 1
24 4526669 Side Panel Painting 1
25 4526668 R lifter 1
26 453057500 Condenser Assy 1
27 4526143 Linker of motor support assy 1
28 453045000 Motor Support 1
29 4523609 Motor YD

K

20-6L 1

30 4523707

A

XIAL FAN 1
31 4526675 Top Cover Painting 1
32 453166600 Install Accessory 1

14-10

EXPLODED VIEWS AND SPARE PARTS LISTS

Revision Y05-02 Service Manual - ALPHA

14.10 Outdoor Unit CON 7 RC with easy connection kit

3

5

4

6

7

8 9 10 11

12

13

14

15

16

17

18

19

29

2

33

32

31 30

20

21

22

23

24

28

27

25

26

14-11

EXPLODED VIEWS AND SPARE PARTS LISTS

Revision Y05-02Service Manual - ALPHA

14.11 Outdoor Unit CON 7 RC with easy connection kit

No. Part No. Description Qty

1 436358 L.lifter 1
2 4526671 Front Panel 1
3 4526481 CON Outdoor Grille 1
4 4527483 Screw ST4X10-C-H DK>9 1
5 453044400 Partition plate 1
6 4525427 Clip for capacitance 1
7 453054400 Fixing plate/Terminal Plate 1
8 453057000 Pedestal/Control 1
9 453080600 Terminal Socket/ALPHA Controller 1
10 453054500 Clip/cables 1
11 455000502 Compressor Capacitor With Screw 25uF (CBB65) 1
12 453056700 Rubber grommet/base plate 4
13 452964500 Compressor Assy. P

A

82X1C-4DZDE(R410A GMCC) 1
14 4510677 Nut With Flange M8 -D=24 GB6187-86 3
15 453112800 Power Cord/Compressor 1
16 453122600 Discharge Pipe Assy 1
17 453045400 Base Plate 1
18 453046100 Low Pressure Stop Valve OD9.53 R410

A

1

19 453046200 High Pressure Stop Valve OD6.35 R411

A

1
20 453112700 Connect Pipe 6.35X0.8 1
21 453126300 Capillary 2.6X1.4X1400 1
22 453112600 Suction Pipe 2 1
23 453112400 Suction Pipe 1 1
24 4526669 Side Panel Painting 1
25 4526668 R lifter 1
26 453057500 Condenser Assy 1
27 4526143 Linker of motor support assy 1
28 453045000 Motor Support 1
29 453057200 Motor 1
30 4523707

A

XIAL FAN 1
31 4526675 Top Cover Painting 1
32 453084800 Connect Pipe Ass

y

./1/4'+3/8'

/

A

lpha7,9,12ST 1

14-12

EXPLODED VIEWS AND SPARE PARTS LISTS

Revision Y05-02 Service Manual - ALPHA

14.12 Outdoor Unit CON 7 ST with easy connection kit

3

5

4

6

7

8

9

10

11

12

13

14

15

16

17

18

19

2

32

31

21

20

22

23

24

25

14-13

EXPLODED VIEWS AND SPARE PARTS LISTS

Revision Y05-02Service Manual - ALPHA

14.13 Outdoor Unit CON 7 ST with easy connection kit

No. Part No. Description Qty

1 436358 L.lifter 1
2 4526671 Front Panel 1
3 4526481 CON Outdoor Grille 1
4 4527483 Screw ST4X10-C-H DK>9 1
5 453044400 Partition plate 1
6 4525427 Clip for capacitance 1
7 453054400 Fixing plate/Terminal Plate 1
8 236179 2 Poles Terminal Block 1
9 453057000 Pedestal/Control 1
10 453080600 Terminal Socket/ALPHA Controller 1
11 453054500 Clip/cables 1
12 455000502 Compressor Capacitor With Screw 25uF (CBB65) 1
13 453056700 Rubber grommet/base plate 4
14 452964500 Compressor Assy. P

A

82X1C-4DZDE(R410A GMCC) 1
15 4510677 Nut With Flange M8 -D=24 GB6187-86 3
16 453112800 Power Cord/Compressor 1
17 4516637 Out sensor Black 1
18 453045400 Base Plate 1
19 453046100 Low Pressure Stop Valve OD9.53 R410

A

1

20 453046200 High Pressure Stop Valve OD6.35 R411

A

1

21 453118500 4-W Valve coil/ R410

A

1
22 453183700 4-W Valve Welding assy 1
23 4518951 4-W valve SHF-4H for R410

A

1
24 453045600 Capillary assy 1
25 4526669 Side Panel Painting 1
26 4526668 R lifter 1
27 453057500 Condenser Assy 1
28 4526143 Linker of motor support assy 1
29 453045000 Motor Support 1
30 453057200 Motor 1
31 4523707

A

XIAL FAN 1
32 4526675 Top Cover Painting 1
33 453085100 Connect Pipe Ass

y

./1/4'+3/8'

/

A

lpha7,9,12RC 1

14-14

EXPLODED VIEWS AND SPARE PARTS LISTS

Revision Y05-02 Service Manual - ALPHA

14.14 Outdoor Unit GCN 9, 12 RC

14-15

EXPLODED VIEWS AND SPARE PARTS LISTS

Revision Y05-02Service Manual - ALPHA

14.15 Outdoor Unit GCN 9 RC

No. Part No. Description Qty

1 4516158 PAINTED COVER PANEL ASSY. 1
2 4522551 Grill A of GCN 1
3 436358 Left Handle 1
4 4523441 Front Panel A Painting Assy. 1
5 4516907 Base Painting Assy. 1
6 453086200 Side Plate Painting Assy. 1
7 4516857 Big Side Cover 1
8 204107 Cable Clip Nylon 1
9 253046 Clip set PVC 1
10 236332 6 Poles Terminal Block 1
11 236179 2 Poles Terminal Block 1
12 4511168 Wire Clip 1
13 4518022 Cap. Clip 1
14 201130 Nut (For Capacitor) 1
15 203008 Washer (For Capacitor) 1
16 455000108 Double patch Capacitor for fan motor 2uF 1
17 455000502 Compressor Capacitor With Screw 25uF (CBB65) 1
18 453090300 Compressor Assy. P

A

-108X1C-4FZDE 1

19 452795300 Nut With Flange M6 3
20 391498

W

ire ass

y

1
21 453047000 Gas Valve 1
22 453046900 Liquid Valve 1
23 453091500 4-Way Valve System Ass

y

. 1
24 4520071 4-Way Valve coil 1
25 4518951 4-Way Valve 1
26 453091600 Capillary assy 1
27 4516156 Back Panel 1
28 4516637 Outdoor Unit Sensor 1
29 453090700 Condensor Assy. 1
30 453086000 Patition Plate 1
31 323156 Motor Support 1
32 4522765 Fan Motor 1
33 4519251 Fan 1
34 4519300 Nut M8 (For Fan) 1
35 453166600 Install Accessory 1

14-16

EXPLODED VIEWS AND SPARE PARTS LISTS

Revision Y05-02 Service Manual - ALPHA

14.16 Outdoor Unit GCN 12 RC

No. Part No. Description Qty

1 4516158 PAINTED COVER PANEL ASSY. 1
2 4522551 Grill A of GCN 1
3 436358 Left Handle 1
4 4523441 Front Panel A Painting Assy. 1
5 4523862 Base Painting Assy. 1
6 453086200 Side Plate Painting Assy. 1
7 4516857 Big Side Cover 1
8 204107 Cable Clip Nylon 1
9 253046 Clip set PVC 1
10 236332 6 Poles Terminal Block 1
11 236179 2 Poles Terminal Block 1
12 4511168 Wire Clip 1
13 4518022 Cap. Clip 1
14 201130 Nut (For Capacitor) 1
15 203008 Washer (For Capacitor) 1
16 455000108 Double patch Capacitor for fan motor 2uF 1
17 455000504 Compressor Capacitor With Screw 35uF (CBB65) 1
18 4526452 Comp.

A

ssy PA145X2C-4FT 1

19 4510677 Nut With Flange M8 -D=24 GB6187-86 3
20 391498

W

ire ass

y

1
21 453047000 Gas Valve 1
22 453046900 Liquid Valve 1
23 453092700 4-Way Valve System Ass

y

. 1
24 4520071 4-Way Valve coil 1
25 4518952 4-Way Valve 1
26 453092800 Capillary assy 1
27 4516156 Back Panel 1
28 4516637 Outdoor Unit Sensor 1
29 453092100 Condensor Assy. 1
30 453086000 Patition Plate 1
31 323156 Motor Support 1
32 4522766 Fan Motor 1
33 4519251 Fan 1
34 4519300 Nut M8 (For Fan) 1
35 453166600 Install Accessory 1

14-17

EXPLODED VIEWS AND SPARE PARTS LISTS

Revision Y05-02Service Manual - ALPHA

14.17 Outdoor Unit GCN 9,12 ST

14-18

EXPLODED VIEWS AND SPARE PARTS LISTS

Revision Y05-02 Service Manual - ALPHA

14.18 Outdoor Unit GCN 9 ST

No. Part No. Description Qty

1 4516158 PAINTED COVER PANEL ASSY. 1
2 4522551 Grill A of GCN 1
3 436358 Left Handle 1
4 4523441 Front Panel A Painting Assy. 1
5 4516907 Base Painting Assy. 1
6 453086200 Side Plate Painting Assy. 1
7 4516857 Big Side Cover 1
8 204107 Cable Clip Nylon 1
9 253046 Clip set PVC 1
10 236332 6 Poles Terminal Block 1
11 236179 2 Poles Terminal Block 1
12 4511168 Wire Clip 1
13 4518022 Cap. Clip 1
14 201130 Nut (For Capacitor) 1
15 203008 Washer (For Capacitor) 1
16 455000108 Double patch Capacitor for fan motor 2uF 1
17 455000502 Compressor Capacitor With Screw 25uF (CBB65) 1
18 453090300 Compressor Assy. P

A

-108X1C-4FZDE 1

19 452795300 Nut With Flange M6 3
20 391498

W

ire ass

y

1
21 453047000 Gas Valve 1
22 453046900 Liquid Valve 1
23 453086900 Suction tube 1
24 453087000 Discharge 1 1
25 4526865 Muffle 1
26 453091300 Discharge 2 1
27 453121700 Capillary 1
28 4516156 Back Panel 1
29 453090700 Condensor Assy. 1
30 453086000 Patition Plate 1
31 323156 Motor Support 1
32 4522765 Fan Motor 1
33 4519251 Fan 1
34 4519300 Nut M8 (For Fan) 1
35 453166600 Install Accessory 1