Electra KN 30 RC User manual

KN Cassette R410A Series

REFRIGERANT

R410A COOLING ONLY

HEAT PUMP

MAY - 2006

Indoor Units Outdoor Units Indoor Units Outdoor Units

KN 24 ST OU7-24 ST KN 30 RC 3PH OU8-30T RC

KN 24 ST 3PH OU7-24T ST KN 36 ST OU10-36 ST

KN 24 RC OU7-24 RC KN 36 ST 3PH OU10-36T ST

KN 24 RC 3PH OU7-24T RC KN 36 RC OU10-36 RC

KN 30 ST OU8-30 ST KN 36 RC 3PH OU10-36T RC

KN 30 ST 3PH OU8-30T ST KN 45 ST 3PH OU10-47T ST

KN 30 RC OU8-30 RC KN 45 RC 3PH OU10-47T RC

LIST OF EFFECTIVE PAGES

Revision Y06-02 Service Manual − KN Series

LIST OF EFFECTIVE PAGES

Note: Changes in the pages are indicated by a “Revision#” in the footer of each effected page

(when none indicates no changes in the relevant page). All pages in the following list represent

effected/ non effected pages divided by chapters.

Dates of issue for original and changed pages are:

Original ....... 0 ........ September 2005

Total number of pages in this publication is 136 consisting of the following:

Page

No.

Revision

No. #

Page

No.

Revision

No. #

Page

No.

Revision

No. #

Title....................... 2

A ........................... 2

i............................. 2

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

2-1 - 2-7................ 2

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

4-1 - 4-3................ 2

5-1 - 5-24.............. 2

6-1 - 6-2................ 2

7-1 - 7-4................ 2

8-1 ........................ 2

9-1 - 9-6................ 2

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

11-1-11-36............. 2

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

13-1-13-36............ 2

14-1-14-6.............. 2

Appendix -A(15-1) .2

•Zero in this column indicates an original page.

*Due to constant improvements please note that the data on this service manual can be modiﬁed

with out notice.

**Photos are not contractual

TABLE OF CONTENTS

Revision Y06-02Service Manual - KN Series

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. ELECTRICAL DATA..............................................................................................6-1

7. WIRING DIAGRAMS .............................................................................................7-1

8. ELECTRICAL CONNECTIONS.............................................................................8-1

9. REFRIGERATION DIAGRAMS.............................................................................9-1

10. TUBING CONNECTIONS......................................................................................10-1

11. CONTROL SYSTEM .............................................................................................11-1

12. TROUBLESHOOTING ..........................................................................................12-1

13. EXPLODED VIEWS AND SPARE PARTS LISTS.................................................13-1

14. OPTIONAL ACCESSORIES .................................................................................14-1

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

1-1

INTRODUCTION

Revision Y06-02Service Manual - KN Series

1. INTRODUCTION

1.1 General

The cassette (900X900) split ceiling mounted range comprise the ST (cooling only) and

RC (heat pump) models, as follows:

• Cooling Only KN24ST, KN30ST, KN36ST 1PH & 3PH; KN45ST 3PH units

• Heat Pump KN24RC, KN30RC, KN36RC 1PH & 3PH; KN45RC 3PH units

1.2 Main Features

The (900X900) Cassette series beneﬁts from the most advanced technological

innovations, namely:

• R410A units

• Microprocessor control.

• Indoor spacial centrifugal fan for low noise operation

• High COP.

• Easy access to interconnecting tubing and wiring connections,

• Integral condensate water pump.

• Automatic treated air sweep.

• Easy installation and service.

1.3 Indoor Unit

The indoor unit is a ceiling mounted, and can be easily ﬁtted to many types of

residential and commercials applications.

It includes:

• Square bended coil with hydrophilic aluminum ﬁns.

• A large diameter centrifugal fan

• Motorized ﬂaps

• Advanced electronic control box assembly.

1.4 Filtration

The Cassette series presents with easily accessible, and re-usable pre-ﬁlters (mesh)

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.

1-2

INTRODUCTION

Revision Y06-02 Service Manual - KN Series

1.6 Outdoor Unit

The Cassette 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 :

• ARotary 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.

• Electrical phase protector (on 3PH models).

• Advanced TYPHOON PCB

1.7 Tubing Connections

Flare type interconnecting tubing to be produced on site.

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.This kit allows

cooling operation down to outdoor temp of -10 ºC by gradually controlling the outdoor

fan speed motor.

RCW Wall Mounted Remote Control

The RCW1/ RCW2 remote control is a wall mounted remote controller, for multi indoor

unit applications and functioning

For further details please refer to Optional Accessories, Chapter 14.

1.9 Inbox Documentation

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

1-3

INTRODUCTION

Revision Y06-02Service Manual - KN Series

1.10 Matching Table

1.10.1 R410A

OUTDOOR UNITS

INDOOR UNITS

MODEL REF’ KN24 KN30 KN36 KN45 DNG24 DNG30 DNG36 DNG44

OU7-24ST R410A √ √

OU7-24T ST R410A √ √

OU7-24 RC R410A √ √

OU7-24T RC R410A √ √

OU8-30 ST R410A √ √

OU8-30T ST R410A √ √

OU8-30 RC R410A √ √

OU8-30T RC R410A √ √

OU10-36 ST R410A √ √

OU10-36T ST R410A √ √

OU10-36 RC R410A √ √

OU10-36T RC R410A √ √

OU10-47T ST R410A √ √

OU10-47T RC R410A √ √

OUTDOOR UNITS

INDOOR UNITS

MODEL REF’ PXD24 PXD30 WNG24 WNG30 WNG36 EMDB24 EMDB30 EMDB36

OU7-24ST R410A √ √ √

OU7-24T ST R410A √ √ √

OU7-24 RC R410A √ √*√

OU7-24T RC R410A √ √*√

OU8-30 ST R410A √ √ √

OU8-30T ST R410A √ √ √

OU8-30 RC R410A √ √ √

OU8-30T RC R410A √ √ √

OU10-36 ST R410A √√

OU10-36T ST R410A √ √

OU10-36 RC R410A √ √

OU10-36T RC R410A √ √

OUTDOOR UNITS

INDOOR UNITS

MODEL REF’ EMDB47

OU10-47T ST R410A √

OU10-47T RC R410A √

√* - this conbination is out of the lego concept and cannot be matched with other types of indoor units.

The above table lists outdoor units and KN indoor units which can be matched together. In

addition the listed outdoor units can be matched with other types of indoor units such as ducted,

wall mounted and ﬂoor/ceiling. For further information please refer to the relevant Service

Manual.

2-1

PRODUCT DATA SHEET

Revision Y06-02Service Manual - KN Series

2. PRODUCT DATA SHEET

2.1 KN 24 / OU7-24 R410A

(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.

Model Indoor Unit KN-24

Model Outdoor Unit OU7-24

Installation Method of Pipe Flared

Characteristics Units Cooling Only Cooling Heating

Btu/hr 23100 23100 24150

Capacity (1)

kW 6.77 6.77 7.08

Power input (1) kW 2.25 2.25 2.33

EER (Cooling) or COP(Heating) (1) W/W 3.01 3.01 3.04

Energy efficiency class BB D

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

Rated current A 9.6 9.6 9

Starting current A 63

Circuit breaker rating A 20

Fan type & quantity Centrifugal x 1

Fan speeds H/M/L RPM 570/510/460

Air flow (2) H/M/L m3/hr 910/800/690

External static pressure Min-Max Pa N/A

Sound power level (3) H/M/L dB(A) 54/50/48

Sound pressure level(4) H/M/L dB(A) 44/41/38

Moisture removal l/hr 2.5

Condensate drain tube I.D mm 32

Dimensions WxHxD mm 840x230x840 (Unit) / 950x46x950 (Frame)

Weight kg 36 (unit) / 6 (Frame)

Package dimensions WxHxD mm 1011x333x931 (Unit) / 1013x145x1013(Frame)

Packaged weight kg 40 (unit) / 7 (Frame)

Units per pallet units 5(Unit) / 15(Frame)

INDOOR

Stacking height units 5 Levels (unit) / 15 Levels (Frame)

Refrigerant control Capillary tube restrictor for heating)

Compressor type, model Rotary, Mitsubishi NN27VBAMT

Fan type & quantity Propeller(direct) x 1

Fan speeds H/L RPM 850

Air flow H/L m3/hr 3100

Sound power level H/L dB(A) 67

Sound pressure level(4) H/L dB(A) 58

Dimensions WxHxD mm 900x680x340

Weight kg 78

Package dimensions WxHxD mm 985x730x406

Packaged weight kg 82

Units per pallet Units 6

Stacking height units 2 Levels

Refrigerant type R410A

Refrigerant chargless distance kg/m 2.16kg/12.5m

Additional charge per 1 meter g/m 25

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

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

Max .tubing length m. Max.30

OUTDOOR

Connections between units

Max .height

difference m. Max.15

Operation control type Remote control

Heating elements kW

Others ASK – Factory Option

Crankcase heater (50W)

2-2

PRODUCT DATA SHEET

Revision Y06-02 Service Manual - KN Series

(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 KN 24 / OU7-24T R410A

Model Indoor Unit KN-24

Model Outdoor Unit OU7-24T

Installation Method of Pipe Flared

Characteristics Units Cooling Only Cooling Heating

Btu/hr 23100 23100 24150

Capacity (1)

kW 6.77 6.77 7.08

Power input (1) kW 2.25 2.25 2.33

EER (Cooling) or COP(Heating) (1) W/W 3.01 3.01 3.04

Energy efficiency class BB D

Power supply V/Ph/Hz 400V/3PH/50Hz

Rated current A 3 X 7.4 3 X 7.4 3 X 7.6

Starting current A 55

Circuit breaker rating A 3 X 16

Fan type & quantity Centrifugal x 1

Fan speeds H/M/L RPM 570/510/460

Air flow (2) H/M/L m3/hr 910/800/690

External static pressure Min-Max Pa N/A

Sound power level (3) H/M/L dB(A) 54/50/48

Sound pressure level(4) H/M/L dB(A) 44/41/38

Moisture removal l/hr 2.5

Condensate drain tube I.D mm 32

Dimensions WxHxD mm 840x230x840 (Unit) / 950x46x950 (Frame)

Weight kg 36 (unit) / 6 (Frame)

Package dimensions WxHxD mm 1011x333x931 (Unit) / 1013x145x1013(Frame)

Packaged weight kg 40 (unit) / 7 (Frame)

Units per pallet units 5(Unit) / 15(Frame)

INDOOR

Stacking height units 5 Levels (unit) / 15 Levels (Frame)

Refrigerant control Capillary tube (restrictor for heating)

Compressor type, model Rotary, Mitsubishi NN27VDAMT

Fan type & quantity Propeller(direct) x 1

Fan speeds H/L RPM 850

Air flow H/L m3/hr 3100

Sound power level H/L dB(A) 67

Sound pressure level(4) H/L dB(A) 58

Dimensions WxHxD mm 900x680x340

Weight kg 78

Package dimensions WxHxD mm 985x730x406

Packaged weight kg 82

Units per pallet Units 6

Stacking height units 2 Levels

Refrigerant type R410A

Refrigerant chargless distance kg/m 2.16kg/12.5m

Additional charge per 1 meter g/m 25

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

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

Max .tubing length m. Max.30

OUTDOOR

Connections between units

Max .height

difference m. Max.15

Operation control type Remote control

Heating elements kW

Others ASK – Factory Option

Crankcase heater (50W), 3 Phase Protector

2-3

PRODUCT DATA SHEET

Revision Y06-02Service Manual - KN Series

Model Indoor Unit KN-30

Model Outdoor Unit OU830

Installation Method of Pipe Flared

Characteristics Units Cooling Only Cooling Heating

Btu/hr 28,300 28,300 30,500

Capacity (1)

kW 8.30 8.30 8.94

Power input (1) kW 2.94 2.94 2.88

EER (Cooling) or COP(Heating) (1) W/W 2.82 2.82 3.10

Energy efficiency class C C

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

Rated current A 12.3 12.3 12.3

Starting current A 80

Circuit breaker rating A 25

Fan type & quantity Centrifugal x 1

Fan speeds H/M/L RPM 740/700/620

Air flow (2) H/M/L m3/hr 1200/1120/985

External static pressure Min-Max Pa N/A

Sound power level (3) H/M/L dB(A) 61/59/56

Sound pressure level(4) H/M/L dB(A) 52/50/47

Moisture removal l/hr 3.2

Condensate drain tube I.D mm 32

Dimensions WxHxD mm 840x230x840 (Unit) / 950x46x950 (Frame)

Weight kg 36 (unit) / 6 (Frame)

Package dimensions WxHxD mm 1011x333x931 (Unit) / 1013x145x1013(Frame)

Packaged weight kg 40 (unit) / 7 (Frame)

Units per pallet units 5(Unit) / 15(Frame)

INDOOR

Stacking height units 5 Levels (unit) / 15 Levels (Frame)

Refrigerant control Capillary

Compressor type, model Rotary, Mitsubishi NN33VAAMT

Fan type & quantity Propeller(direct) x 1

Fan speeds H/L RPM 850

Air flow H/L m3/hr 3150

Sound power level H/L dB(A) 69

Sound pressure level(4) H/L dB(A) 59

Dimensions WxHxD mm 900x860x340

Weight kg 78

Package dimensions WxHxD mm 985x907x435

Packaged weight kg 82

Units per pallet Units 6

Stacking height units 2 Levels

Refrigerant type R410A

Refrigerant chargless distance kg/m 2.42kg/15m

Additional charge per 1 meter g/m 30

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

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

Max .tubing length m. Max.30

OUTDOOR

Connections between units

Max .height

difference m. Max.15

Operation control type Remote control

Heating elements kW

Others Crankcase heater (50W)

(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 KN 30 / OU8-30 R410A

2-4

PRODUCT DATA SHEET

Revision Y06-02 Service Manual - KN Series

Model Indoor Unit KN-30

Model Outdoor Unit OU830T

Installation Method of Pipe Flared

Characteristics Units Cooling Only Cooling Heating

Btu/hr 28,300 28,300 30,500

Capacity (1)

kW 8.30 8.30 8.94

Power input (1) kW 2.86 2.86 2.79

EER (Cooling) or COP(Heating) (1) W/W 2.9 2.9 3.20

Energy efficiency class C C

Power supply V/Ph/Hz 400V/3PH/50Hz

Rated current A 3 x 5.2 3 x 5.2 3 x 5.2

Starting current A 35

Circuit breaker rating A 3 x 16

Fan type & quantity Centrifugal x 1

Fan speeds H/M/L RPM 740/700/620

Air flow (2) H/M/L m3/hr 1200/1120/985

External static pressure Min-Max Pa N/A

Sound power level (3) H/M/L dB(A) 61/59/56

Sound pressure level(4) H/M/L dB(A) 52/50/47

Moisture removal l/hr 3.2

Condensate drain tube I.D mm 32

Dimensions WxHxD mm 840x230x840 (Unit) / 950x46x950 (Frame)

Weight kg 36 (unit) / 6 (Frame)

Package dimensions WxHxD mm 1011x333x931 (Unit) / 1013x145x1013(Frame)

Packaged weight kg 40 (unit) / 7 (Frame)

Units per pallet units 5(Unit) / 15(Frame)

INDOOR

Stacking height units 5 Levels (unit) / 15 Levels (Frame)

Refrigerant control Capillary

Compressor type, model Rotary, Mitsubishi NN33YCAMT

Fan type & quantity Propeller(direct) x 1

Fan speeds H/L RPM 850

Air flow H/L m3/hr 3150

Sound power level H/L dB(A) 69

Sound pressure level(4) H/L dB(A) 59

Dimensions WxHxD mm 900x860x340

Weight kg 78

Package dimensions WxHxD mm 985x907x435

Packaged weight kg 82

Units per pallet Units 6

Stacking height units 2 Levels

Refrigerant type R410A

Refrigerant chargless distance kg/m 2.42kg/15m

Additional charge per 1 meter g/m 30

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

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

Max .tubing length m. Max.30

OUTDOOR

Connections between units

Max .height

difference m. Max.15

Operation control type Remote control

Heating elements kW

Others Crankcase heater (50W),3PH Protector

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

(2) Airﬂow in ducted units; at nominal external static pressure.

(3) Sound power in ducted units is measured at air discharge.

(4) Sound pressure level measured at 1 meter distance from unit.

2.4 KN 30 / OU8-30T R410A

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