Electra KN 30 RC 3PH, OU7-24T ST, OU8-30T RC, KN 24 ST 3PH, KN 36 ST Service 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
A
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
i
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 :
• 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.
• 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
B
B 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
B
B 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
D
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
D
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
2-5
PRODUCT DATA SHEET
Revision Y06-02Service Manual - KN Series
2.5 KN 36 / OU10-36 R410A
Model Indoor Unit KN 36
Model Outdoor Unit OU10-36 R410A
Installation method CASSETE
Characteristics Units Cooling Heating
Btu/hr 34,500 34,500
Capacity (1)
kW 10.10 10.10
Power input (1) kW 3.48 3.60
COP (1) W/W 2.90 2.80
Energy efficiency class C D
Power supply V/ Ph /Hz 230/50/1
Rated current A 16.2 16.3
Starting current A 92
Circuit breaker rating A 25
Fan type & quantity Centrifugal & 1
Fan speeds H/ M/ L RPM 580 540 500
Air flow (2) H/ M/ L m³/hr 1220 1125 1025
External static pressure Min-Max Pa N/A
Sound power level (3) H/ M/ L dB(A) 53 51 49
Sound pressure level (4) H/ M/ L dB(A) 46 44 42
Moisture removal L/hr 4.1
Condensate drain tube I.D mm 32
Dimensions (Unit / Frame) W/ H / D mm 840 / 950 840 / 950 300 / 46
Weight kg 48
Package dimensions
(Unit / Frame)
W/ H / D mm 1011 / 1013 931/ 1013 400 / 145
Packaged weight kg 52
Units / Frames per pallet Units 5 / 15
INDOOR
Stacking height Units / Frames Units 5 / 15
Refrigerant control Capillary tube
Compressor type, model Scroll
Fan type & quantity Axial & 2
Fan speeds H / L RPM 1150
Air flow H / L m³/hr 4150
Sound power level H / L dB(A) 70.4
Sound pressure level (4) H / L dB(A) 61.1
Dimensions W/ H / D mm 900 970 340
Weight kg 87
Package dimensions W/ H / D mm 985 1020 435
Packaged weight kg 91
Units per pallet Units 6
Stacking height Units 2
Refrigerant type R 410A
Refrigerant charges distance kg/m 2.55/15
Additional charge per 1 meter g/m 30
Liquid line In. 3/8
Suction line In. 3/4
Max. tubing length m. 50
OUTDOOR
Connections
between
units
Max. height
difference
m. 25
Operation control type LCD Remote Control
Heating elements kW 3.0
Others Crankcase heater (50W), 3 Phase Protector
(1) Rating conditions in accordance to ISO 5151 and ISO 13253 (for ducted units).
(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.
Crankcase heater (50W)
2-6
PRODUCT DATA SHEET
Revision Y06-02 Service Manual - KN Series
2.6 KN 36 / OU10-36T R410A
Model Indoor Unit KN 36
Model Outdoor Unit OU10-36T R410A
Installation method CASSETE
Characteristics Units Cooling Heating
Btu/hr 33,100 35,150
Capacity (1)
kW 9.70 10.30
Power input (1) kW 3.34 3.68
COP (1) W/W 2.90 2.80
Energy efficiency class C D
Power supply V/ Ph /Hz 400/3N/50
Rated current A 3x6.1 3x6.5
Starting current A 43
Circuit breaker rating A 3x16
Fan type & quantity Centrifugal & 1
Fan speeds H/ M/ L RPM 580 540 500
Air flow (2) H/ M/ L m³/hr 1220 1125 1025
External static pressure Min-Max Pa N/A
Sound power level (3) H/ M/ L dB(A) 53 51 49
Sound pressure level (4) H/ M/ L dB(A) 46 44 42
Moisture removal L/hr 4.1
Condensate drain tube I.D mm 32
Dimensions (Unit / Frame) W/ H / D mm 840 / 950 840 / 950 300 / 46
Weight kg 48
Package dimensions
(Unit / Frame)
W/ H / D mm 1011 / 1013 931/ 1013 400 / 145
Packaged weight kg 52
Units / Frames per pallet Units 5 / 15
INDOOR
Stacking height Units / Frames Units 5 / 15
Refrigerant control Capillary tube
Compressor type, model Scroll
Fan type & quantity Axial & 2
Fan speeds H / L RPM 1150
Air flow H / L m³/hr 4150
Sound power level H / L dB(A) 70
Sound pressure level (4) H / L dB(A) 61
Dimensions W/ H / D mm 900 970 340
Weight kg 87
Package dimensions W/ H / D mm 985 1020 435
Packaged weight kg 91
Units per pallet Units 6
Stacking height Units 2
Refrigerant type R 410A
Refrigerant charges distance kg/m 2.45/15
Additional charge per 1 meter g/m 30
Liquid line In. 3/8
Suction line In. 3/4
Max. tubing length m. 50
OUTDOOR
Connections
between
units
Max. height
difference
m. 25
Operation control type LCD Remote Control
Heating elements kW 3.0
Others Crankcase heater (50W), 3 Phase Protector
(1) Rating conditions in accordance to ISO 5151 and ISO 13253 (for ducted units).
(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 Y06-02Service Manual - KN Series
2.7 KN 45 / OU10-47 R410A
Model Indoor Unit KN 45
Model Outdoor Unit OU10-47T R410A
Installation method CASSETE
Characteristics Units Cooling Heating
Btu/hr 42,150 45,000
Capacity (1)
kW 12.35 13.20
Power input (1) kW 4.40 4.63
COP (1) W/W 2.80 2.85
Energy efficiency class C D
Power supply V/ Ph /Hz 400/3N/50
Rated current A 3x8.4 3x8.9
Starting current A 61
Circuit breaker rating A 3x20A
Fan type & quantity Centrifugal & 1
Fan speeds H/ M/ L RPM 810 630 570
Air flow (2) H/ M/ L m³/hr 1600 1330 1200
External static pressure Min-Max Pa N/A
Sound power level (3) H/ M/ L dB(A) 63.0 57.0 53.0
Sound pressure level (4) H/ M/ L dB(A) 55.0 49.0 46.0
Moisture removal L/hr 5.4
Condensate drain tube I.D mm 32
Dimensions (Unit / Frame) W/ H / D mm 840 / 950 840 / 950 300 / 46
Weight kg 48
Package dimensions
(Unit / Frame)
W/ H / D mm 1011 / 1013 931/ 1013 400 / 145
Packaged weight kg 52
Units / Frames per pallet Units 5 / 15
INDOOR
Stacking height Units / Frames Units 5 / 15
Refrigerant control Capillary tube
Compressor type, model Scroll
Fan type & quantity Axial & 2
Fan speeds H / L RPM 1240
Air flow H / L m³/hr 4350
Sound power level H / L dB(A) 71
Sound pressure level (4) H / L dB(A) 64
Dimensions W/ H / D mm 900 970 340
Weight kg 96
Package dimensions W/ H / D mm 985 1020 435
Packaged weight kg 100
Units per pallet Units 6
Stacking height Units 2
Refrigerant type R 410A
Refrigerant charges distance kg/m 3,00/15
Additional charge per 1 meter g/m 45
Liquid line In. 3/8
Suction line In. 3/4
Max. tubing length m. 50
OUTDOOR
Connections
between
units
Max. height
difference
m. 25
Operation control type LCD Remote Control
Heating elements kW 3.0
Others Crankcase heater (50W), 3 Phase Protector
(1) Rating conditions in accordance to ISO 5151 and ISO 13253 (for ducted units).
(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 Y06-02Service Manual - KN Series
3. RATING CONDITIONS
Standard conditions in accordance with ISO 5151, ISO 13253 (for ducted units)
and EN 14511.
Cooling:
Indoor: 27
o
C DB 19oC WB
Outdoor: 35 oC DB
Heating:
Indoor: 20
o
C DB
Outdoor: 7oC DB 6oC WB
3.1 Operating Limits
Indoor Outdoor
Cooling
Upper limit 32
o
C DB 23oC WB 46oC DB
Lower limit 21
o
C DB 15oC WB 21oC DB
Heating
Upper limit 27
o
C DB 24oC DB 18oC WB
Lower limit 20
o
C DB -9oC DB -10oC WB
Voltage
1PH 198 – 264 V
3PH 360 - 440 V
4-1
OUTLINE DIMENSIONS
Revision Y06-02Service Manual - KN Series
4. OUTLINE DIMENSIONS
4.1 Indoor Unit: KN 24, 30, 36, 45
Necessary room
outlet inlet outlet
Chart 1
ground
Drain side Tubing side
780 (Hook-location)
840 (Body)
880 (Ceiling hole)
950 (Panel)
Chart 2
(Unit: mm)
Chart 3
780 (Hook-location)
840 (Body)
880 (Ceiling hole)
950 (Panel)
Note: 24/27/30 Series A 260mm
36/45 Series A 330mm
Body
Hook
Ceiling
Panel
Chart 4
H (Ceiling height)
Body
Ceiling
Chart 5
Chart 6
Body
Body M6X12
Central hole
Installation paper
board
Chart 7
Note: 24/27/30 Series B 240mm
36/45 Series B 310mm
Nut
4-2
OUTLINE DIMENSIONS
Revision Y06-02 Service Manual - KN Series
4.2 Outdoor Unit: OU7-24
4.3 Outdoor Unit: OU8-30
4-3
OUTLINE DIMENSIONS
Revision Y06-02Service Manual - KN Series
4.4 Outdoor Unit: OU10-36, OU10-47
5-1
PERFORMANCE DATA & PRESSURE CURVES
Revision Y06-02Service Manual - KN Series
5. PERFORMANCE DATA
5.1 KN24 / OU7-24 R410A 1PH/3PH
5.1.1 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
7.14 7.39 7.57 7.74 7.86
SC
4.80 5.00 5.20 5.33 5.43
PI
1.60 1.60 1.60 1.60 1.61
20
(1)
TC
6.90 7.28 7.51 7.68 7.85
SC
4.70 4.96 5.17 5.31 5.41
PI
1.73 1.74 1.74 1.75 1.76
25
TC
6.53 7.05 7.42 7.64 7.83
SC
4.58 4.86 5.13 5.28 5.37
PI
1.87 1.88 1.90 1.91 1.92
30
TC
6.11 6.65 7.19 7.44 7.66
SC
4.44 4.72 5.02 5.16 5.26
PI
2.02 2.05
2.07
2.08 2.10
35
TC
5.66 6.14
6.77
7.11 7.45
SC
4.22 4.52 4.90 5.04 5.14
PI
2.18 2.21
2.25
2.27 2.28
40
TC
5.14 5.60
6.11
6.68 7.02
SC
3.98 4.28 4.64 4.78 4.88
PI
2.35 2.39 2.43 2.46 2.48
46
TC
4.46 4.88 5.37 5.93 6.39
SC
3.66 3.93 4.23 4.37 4.47
PI
2.57 2.60 2.66 2.70 2.73
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, refer to Optional Accessories (Chapter 15).
5-2
PERFORMANCE DATA & PRESSURE CURVES
Revision Y06-02 Service Manual - KN Series
5.1.2 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 4.09 1.86 3.93 1.99 3.78 6.34
-7 4.40 1.91 4.24 2.02 4.09 6.46
-2 4.67 1.93 4.52 2.05 4.36 6.58
2 5.69 2.03
5.45 2.16
5.22 6.94
6 7.29 2.18 7.08 2.33 6.83 7.52
10 7.93 2.30
7.72 2.46
7.50 7.99
15 8.57 2.40 8.35 2.59 8.14 8.35
20 9.03 2.47 8.81 2.68 8.57 8.78
* 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., (
o
C)
ID – Indoor
OU – Outdoor
5.2 Capacity Correction Factor Due to Tubing Length (One Way)
TOTAL TUBING LENGTH
4m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.01
1
0.98 0.97 0.96 0.95 0.94 --- ---
* Minimum recommended tubing length between indoor and outdoor units is 4m.
5.2.1 Heating
TOTAL TUBING LENGTH
4m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.02
1
0.99 0.99 0.98 0.97 0.97 --- ---
* Minimum recommended tubing length between indoor and outdoor units is 4m.
5-3
PERFORMANCE DATA & PRESSURE CURVES
Revision Y06-02Service Manual - KN Series
5.3 Pressure Curves.
5.3.1 Cooling.
Suction Pressure VS.Outdoor Temp
6
7
8
9
10
11
15 20 2530354046
Outdoor Temp.(DB oC )
Suction P ressure (Bar[g])
21/15(DB/W B ºC)
24/17(DB/W B ºC)
27/19(DB/W B ºC)
29/21(DB/WB ºC)
32/23(DB/W B ºC)
Discharge Pressure VS.Outdoor Temp
14
16
18
20
22
24
26
28
30
32
34
36
38
40
15 20 2530354046
Outdoor Temp.(DB oC )
Discharge Pressure (Bar[g])
21/15(DB/ W B º C)
24/17(DB/ W B º C)
27/19(DB/ W B º C)
29/21(DB/WB ºC)
32/23(DB/W B ºC)
5-4
PERFORMANCE DATA & PRESSURE CURVES
Revision Y06-02 Service Manual - KN Series
5.3.2 Heating.
Suction Pressure VS.Outdoor Temp
3
4
5
6
7
8
9
10
11
-10 -5 0 5 10 15 20
Outdoor Temp.( WB oC )
Sucti on Pressure(Bar[g])
15 DB (ºC)
20 DB (ºC)
25 DB (ºC)
Discharge Pressure VS.Outdoor Temp
18
23
28
33
38
43
-10 -5 0 5 10 15 20
Outdoor Temp.( WB oC )
Discharge Pressure(Bar[g])
25 DB (ºC)
20 DB (ºC)
15 DB (ºC)
5-5
PERFORMANCE DATA & PRESSURE CURVES
Revision Y06-02Service Manual - KN Series
5.4 KN30 / OU8-30 R410A
5.4.1 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
8.75 9.06 9.27 9.49 9.64
SC
5.88 6.13 6.37 6.53 6.65
PI
2.08 2.09 2.09 2.10 2.11
20
(1)
TC
8.46 8.92 9.20 9.42 9.62
SC
5.76 6.07 6.33 6.51 6.63
PI
2.26 2.27 2.28 2.29 2.29
25
TC
8.01 8.65 9.09 9.37 9.59
SC
5.61 5.95 6.28 6.46 6.58
PI
2.45 2.46 2.48 2.50 2.51
30
TC
7.49 8.15 8.81 9.12 9.39
SC
5.43 5.78 6.14 6.32 6.44
PI
2.64 2.68
2.70
2.72 2.75
35
TC
6.93 7.52
8.30
8.72 9.13
SC
5.17 5.54 6.00 6.17 6.29
PI
2.85 2.89
2.94
2.96 2.98
40
TC
6.31 6.86
7.49
8.19 8.61
SC
4.87 5.24 5.68 5.86 5.98
PI
3.07 3.12 3.17 3.21 3.24
46
TC
5.47 5.98 6.58 7.27 7.83
SC
4.49 4.81 5.18 5.36 5.48
PI
3.35 3.40 3.48 3.53 3.57
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, refer to Optional Accessories (Chapter 15).
5-6
PERFORMANCE DATA & PRESSURE CURVES
Revision Y06-02 Service Manual - KN Series
5.4.2 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 5.16 2.30 4.97 2.45 4.77 2.58
-7 5.56 2.36 5.36 2.49 5.16 2.63
-2 5.90 2.39 5.70 2.53 5.51 2.68
2 7.18 2.51
6.88 2.66
6.59 2.82
6 9.21 2.69 8.94 2.88 8.63 3.06
10 10.01 2.84
9.74 3.04
9.48 3.25
15 10.82 2.97 10.55 3.20 10.28 3.40
20 11.40 3.05 11.13 3.31 10.82 3.57
* 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., (
o
C)
ID – Indoor
OU – Outdoor
5.5 Capacity Correction Factor Due to Tubing Length (One Way)
TOTAL TUBING LENGTH
4m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.01
1
0.98 0.97 0.96 0.95 0.94 --- ---
* Minimum recommended tubing length between indoor and outdoor units is 4m.
5.5.1 Heating
TOTAL TUBING LENGTH
4m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.02
1
0.99 0.99 0.98 0.97 0.97 --- ---
* Minimum recommended tubing length between indoor and outdoor units is 4m.
5-7
PERFORMANCE DATA & PRESSURE CURVES
Revision Y06-02Service Manual - KN Series
5.6 KN30 / OU8-30T R410A
5.6.1 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
8.75 9.06 9.27 9.49 9.64
SC
5.88 6.13 6.37 6.53 6.65
PI
2.03 2.03 2.04 2.04 2.05
20
(1)
TC
8.46 8.92 9.20 9.42 9.62
SC
5.76 6.07 6.33 6.51 6.63
PI
2.20 2.21 2.22 2.23 2.23
25
TC
8.01 8.65 9.09 9.37 9.59
SC
5.61 5.95 6.28 6.46 6.58
PI
2.38 2.40 2.41 2.43 2.44
30
TC
7.49 8.15 8.81 9.12 9.39
SC
5.43 5.78 6.14 6.32 6.44
PI
2.57 2.60
2.63
2.65 2.67
35
TC
6.93 7.52
8.30
8.72 9.13
SC
5.17 5.54 6.00 6.17 6.29
PI
2.77 2.81
2.86
2.88 2.90
40
TC
6.31 6.86
7.49
8.19 8.61
SC
4.87 5.24 5.68 5.86 5.98
PI
2.99 3.03 3.08 3.12 3.15
46
TC
5.47 5.98 6.58 7.27 7.83
SC
4.49 4.81 5.18 5.36 5.48
PI
3.26 3.31 3.39 3.43 3.47
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, refer to Optional Accessories (Chapter 15).
5-8
PERFORMANCE DATA & PRESSURE CURVES
Revision Y06-02 Service Manual - KN Series
5.6.2 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 5.16 2.23 4.97 2.38 4.77 2.50
-7 5.56 2.29 5.36 2.41 5.16 2.54
-2 5.90 2.32 5.70 2.46 5.51 2.59
2 7.18 2.43
6.88 2.58
6.59 2.73
6 9.21 2.61 8.94 2.79 8.63 2.96
10 10.01 2.75
9.74 2.94
9.48 3.15
15 10.82 2.87 10.55 3.10 10.28 3.29
20 11.40 2.96 11.13 3.21 10.82 3.46
* 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
5.7 Capacity Correction Factor Due to Tubing Length (One Way)
TOTAL TUBING LENGTH
4m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.01
1
0.98 0.97 0.96 0.95 0.94 ― ―
* Minimum recommended tubing length between indoor and outdoor units is 4m.
5.7.1 Heating
TOTAL TUBING LENGTH
4m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.02
1
0.99 0.99 0.98 0.97 0.97 ― ―
* Minimum recommended tubing length between indoor and outdoor units is 4m.
5-9
PERFORMANCE DATA & PRESSURE CURVES
Revision Y06-02Service Manual - KN Series
5.8 Pressure Curves.
5.8.1 KN30 / OU8-30 R410A - Cooling:
Suction Pressure VS.Outdoor Temp
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
15 20 2530354046
Outdoor Temp.(DB oC )
Suction Pressure (Bar[g])
21/15(DB/WB ºC)
24/17(DB/WB ºC)
27/19(DB/WB ºC)
29/21(DB/W B ºC)
32/23(DB/WB ºC)
Discharge Pressure VS.Outdoor Temp
16
18
20
22
24
26
28
30
32
34
36
38
40
15 20 2530354046
Outdoor Temp.(DB oC )
Discharge P ressure (Bar[g])
21/15(DB/WB ºC)
24/17(DB/WB ºC)
27/19(DB/WB ºC)
29/21(DB/W B ºC)
32/23(DB/WB ºC)
5-10
PERFORMANCE DATA & PRESSURE CURVES
Revision Y06-02 Service Manual - KN Series
5.8.2 Heating.
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 Te mp.( WB oC )
Sucti on Pressure(Bar[g])
15 DB (ºC)
20 DB (ºC)
25 DB (ºC)
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)
5-11
PERFORMANCE DATA & PRESSURE CURVES
Revision Y06-02Service Manual - KN Series
5.9 Pressure Curves.
5.9.1 KN30 / OU8-30T R410A - Cooling:
Suction Pressure VS.Outdoor Temp
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
10.5
11.0
15 20 2530354046
Outdoor Temp.(DB oC )
Suction Pressure (Bar[g])
21/15(DB/WB ºC)
24/17(DB/WB ºC)
27/19(DB/WB ºC)
29/21(DB/WB ºC)
32/23(DB/W B ºC)
Discharge Pressure VS.Outdoor Temp
16
18
20
22
24
26
28
30
32
34
36
38
40
15 20 2530354046
Outdoor Temp.(DB oC )
Discharge Pressure (Bar[g])
21/15(DB/ WB º C)
24/17(DB/ W B ºC)
27/19(DB/ W B ºC)
29/21(DB/WB ºC)
32/23(DB/W B ºC)
5-12
PERFORMANCE DATA & PRESSURE CURVES
Revision Y06-02 Service Manual - KN Series
5.8.2 Heating.
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)
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)
5-13
PERFORMANCE DATA & PRESSURE CURVES
Revision Y06-02Service Manual - KN Series
5.9 KN36 / OU10-36 R410A
5.9.1 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
10.65 11.03 11.29 11.55 11.73
SC
6.74 7.03 7.30 7.48 7.62
PI
2.47 2.47 2.48 2.48 2.50
20
(1)
TC
10.30 10.86 11.20 11.46 11.71
SC
6.60 6.96 7.26 7.46 7.60
PI
2.68 2.69 2.70 2.71 2.72
25
TC
9.74 10.52 11.06 11.40 11.67
SC
6.43 6.83 7.20 7.41 7.54
PI
2.89 2.91 2.93 2.95 2.97
30
TC
9.11 9.92 10.72 11.10 11.43
SC
6.23 6.62 7.04 7.25 7.39
PI
3.12 3.17
3.20
3.22 3.25
35
TC
8.44 9.16
10.10
10.61 11.11
SC
5.93 6.35 6.88 7.08 7.22
PI
3.37 3.42
3.48
3.51 3.53
40
TC
7.67 8.35
9.11
9.97 10.48
SC
5.59 6.01 6.51 6.71 6.85
PI
3.63 3.69 3.75 3.80 3.84
46
TC
6.66 7.28 8.00 8.84 9.53
SC
5.14 5.51 5.93 6.14 6.28
PI
3.97 4.03 4.12 4.18 4.23
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, refer to Optional Accessories (Chapter 15).
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