Electra K 25 DCI INV, K 35 DCI INV, ONG 35 DCI INV, ONG 25 DCI INV, K 35S DCI INV Service Manual

Service Manual

K DCI Inverter series

Indoor Units Outdoor Units

K 25 DCI INV ONG 25 DCI INV

K 35 DCI INV ONG 35 DCI INV

K 35S DCI INV ONG 35S DCI INV

K 50 DCI INV ONG 50 DCI INV

REFRIGERANT

R410A

DECEMBER 2004

HEAT PUMP

LIST OF EFFECTIVE PAGES

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 .......1 ........ 15 January 2005

Total number of pages in this publication is 70 consisting of the following:

Page
No.

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

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

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

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

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

3-1 - 3-2 ................ 0

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

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

6-1 - 6-8 ................ 0

7-1 - 7-2 ................ 0

8-1 - 8-2 ................ 0

9-1 - 9-2 ................ 0

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

11-1-11-16 ............. 0

12-1-12-8 .............. 1

13-1-13-10 ............ 0

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

Revision
No. #

Page
No.

Revision
No. #

Page
No.

Revision
No. #

• 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.

A

Revision Y05-02

Service Manual − K DCI

TABLE OF CONTENTS

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 .......................................................................................5-1

6. PRESSURE CURVES ...........................................................................................6-1

7. ELECTRICAL DATA ..............................................................................................7-1

8. WIRING DIAGRAMS .............................................................................................8-1

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

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

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

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

13.

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

14. APPENDIX A

Revision Y05-02Service Manual - K DCI

i

1. INTRODUCTION

CONTENTS

1.1 General

The new K DCI INVERTERS split Cassette range comprise the following RC (heat
pump) models:

• K 25 DCI INV

• K 35 DCI INV

• K 35S DCI INV

• K 50 DCI INV

The New DCI K units can be easly fitted to resedential and comercial aplications
featuring esthetic design, compact dimensions, and low noise operation.

1.2 Main Features

INTRODUCTION

The K DCI INV series benefits from the most advanced technological innovations,
namely:

• DC Inverter technolegy

• R410a

• High COP (level A)

• Lego Concept

• Pre-Charged units up to the max’ alowing tubing distance

• Networking system connectivity

• Base heater connection

• Cooling operation at outdoor temperature down to -10ºC

• Heating operation at outdoor temperature down to -15ºC

• Bended indoor coil with treated aluminum fins and coating for improved

efficiency.

• Easy access to the interconnecting tubing and wiring connections.

• Automatic treated air sweep.

• Low indoor and outdoor noise levels.

• Easy installation and service.

Revision Y05-02Service Manual - K DCI

1-1

INTRODUCTION

CONTENTSCONTENTS

1.3 Filtration

The WNG DCI INV series presents several types of air filters:

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

• Pre-charged electrostatic filter (disposable)

• Active carbon filter (disposable)

1.4 Control

The microprocessor indoor and outdoor controllers, and an infrared remote control,
supplied as standard, provide complete operating function and programming.

Remote controlers: RC-2/3/4/5/7, RCW, µBMS

Networking system AircoNet version 4.2 and up, MIU SW version H8 and up
For further details please refer to the Operation Manual, Appendix A.

1.5 Outdoor Unit

The K DCI INV 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.

• ONG 25 DCI

• ONG 35 DCI

• ONG 50

Outdoor Unit Features:

Features ONG 25,35, 50, DCI

Display 3 LED’s
Base Heater Optional
Outdoor Fan Variable Speed DC Inverter

M2L cable Port No

1.6 Tubing Connections

Flare type interconnecting tubing to be produced on site.
For further details please refer to the Installation Manual, Chapter 9.

1.7 Accessories

1.8 Inbox Documentation

1-2

• MIU (K) MODBUS Interface Unit

• Base heater

• M2L cable

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

Revision Y05-02 Service Manual - K DCI

1.9 Matching Table

CONTENTSCONTENTS

1.9.1 R410A

OUTDOOR UNITS

MODEL REF” WNG25DCI WNG35 DCI K25 DCI K35 DCI K35S DCI K50 DCI

INTRODUCTION

INDOOR UNITS

ONG 25 DCI R410A

ONG 35 DCI R410A

0NG 50 DCI R410A

√√

√√√

√

The above table lists outdoor units and K indoor units which can be matched together. In addition
the listed outdoor units can be matched with other types of indoor units such as wall mounted,
For further information please refer to the relevant Service Manual.

Revision Y05-02Service Manual - K DCI

1-3

PRODUCT DATA SHEET

CONTENTSCONTENTS

2. PRODUCT DATA SHEET

2.1 K25 DCI

Model Indoor Unit K25 DCI
Model Outdoor Unit ONG25 DCI

Installation Method Flare

Characteristics Units Cooling Heating

(1)

Capacity

Power Input

COP

Energy Efficiency Class A A

Power Supply V/Ph/Hz

Rated Current A

Starting Current A

Circuit Breaker Rating A 16

INDOOR

OUTDOOR

Operation Control Type IR Remote Control

(1)

(1)

W

W/W

Fan Type & Quantity Centrifugal*1

(2)

Airflow

H/M/L m3/hr

External Static Pressure Min-Max Pa N/A

Sound Power Level

Sound Pressure Level

Moisture Removal L/hr

Condensate Drain Tube I.D. mm 16

Dimensions W/H/D mm 571 287 571

Weight kg 22.7

Package Dimensions W/H/D mm 685 415 685

Units per Pallet Units 10

Stacking Height Units 5

Refrigerant Control Electronic Expansion Valve

Compressor Type, Model Single Rotary DC Inverter Panasonic 5RS102XAB

Fan Type & Quantity Axial *1

Airflow H m3/hr 1780

Sound Power Level H dB (A) 60 61

Sound Pressure Level

Dimensions W/H/D mm 795 610 290

Weight kg 40

Package Dimensions W/H/D mm 945 655 393

Units per Pallet Units 9

Stacking Height Units 3

Refrigerant Type R410A

Refrigerant Chargeless Distance g 1100

Additional Charge Per 1 Meter g/m No Need

Connections
Between Units

(3)

H/L dB (A)

(4)

H/L dB (A)

(4)

H dB (A) 50 51

Liquid Line

Suction Line

Max. Tubing Length m 20

Max. Height Difference m 10

Btu/hr

W

(mm)In

(mm)In

8530 (5120-12970) 11600 (5120-17060)

2500 (1500 - 3800) 3400 (1500 - 5000)

590 (420-1000) 915 (400-1500)

4.24 3.72

220-240V / 1Ph / 50Hz

2.7 4.2

10.50

570-500-435 600-530-450

42-48 42-47

32-38 32-37

1.0

(6.35)

¼”

(9.53)

”

(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN14511.
(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.

Revision Y05-02Service Manual - K DCI

2-1

PRODUCT DATA SHEET

CONTENTSCONTENTS

2.2 K35 DCI

Model Indoor Unit K35 DCI
Model Outdoor Unit ONG35 DCI

Installation Method Flare

Characteristics Units Cooling Heating

Capacity

Power Input

COP

Energy Efficiency Class A A

Power Supply V/Ph/Hz

Rated Current A

Starting Current A

Circuit Breaker Rating A 16

Operation Control Type IR Remote Control

(1)

(1)

(1)

INDOOR

OUTDOOR

W

W/W

Fan Type & Quantity Centrifugal*1

(2)

Airflow

H/M/L m3/hr

External Static Pressure Min-Max Pa N/A

Sound Power Level

Sound Pressure Level

Moisture Removal L/hr

Condensate Drain Tube I.D. mm 16

Dimensions W/H/D mm 571 287 571

Weight kg 24.4

Package Dimensions W/H/D mm 685 415 685

Units per Pallet Units 10

Stacking Height Units 5

Refrigerant Control Electronic Expansion Valve

Compressor Type, Model Single Rotary DC Inverter Panasonic 5RS102XAB

Fan Type & Quantity Axial *1

Airflow H m3/hr 1780

Sound Power Level H dB (A)

Sound Pressure Level

Dimensions W/H/D mm 795 610 290

Weight kg 40

Package Dimensions W/H/D mm 945 655 393

Units per Pallet Units 9

Stacking Height Units 3

Refrigerant Type R410A

Refrigerant Chargeless Distance g 1200

Additional Charge Per 1 Meter g/m No Need

Connections
Between Units

(3)

H/L dB (A)

(4)

H/L dB (A)

(4)

H dB (A)

Liquid Line

Suction Line

Max. Tubing Length m 20

Max. Height Difference m 10

Btu/hr

W

(mm)In

(mm)In

11940 (5100 - 14960) 14620 (5100 - 18700)

3500 (1500 - 4400) 4300 (1500 - 5500)

950 (420-1250) 1330 (400-1850)

3.68 3.23

220-240V / 1Ph / 50Hz

4.1 5.6

10.50

580-510-435 620-560-450

42-48 42-47

32-38 32-37

1.5

62 62

52 52

¼”

(6.35)

(9.53)

”

(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN14511.
(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

Revision Y05-02 Service Manual - K DCI

PRODUCT DATA SHEET

CONTENTSCONTENTS

2.3 K35S DCI

Model Indoor Unit K35S DCI
Model Outdoor Unit ONG35 DCI

Installation Method Flare

Characteristics Units Cooling Heating

Capacity

Power Input

COP

Energy Efficiency Class A A

Power Supply V/Ph/Hz

Rated Current A

Starting Current A

Circuit Breaker Rating A 16

Operation Control Type IR Remote Control

(1)

(1)

(1)

INDOOR

OUTDOOR

W

W/W

Fan Type & Quantity Centrifugal*1

(2)

Airflow

H/M/L m3/hr

External Static Pressure Min-Max Pa N/A

Sound Power Level

Sound Pressure Level

Moisture Removal L/hr

Condensate Drain Tube I.D. mm 16

Dimensions W/H/D mm 571 287 571

Weight kg 24.4

Package Dimensions W/H/D mm 685 415 685

Units per Pallet Units 10

Stacking Height Units 5

Refrigerant Control Electronic Expansion Valve

Compressor Type, Model Single Rotary DC Inverter Panasonic 5RS102XAB

Fan Type & Quantity Axial *1

Airflow H m3/hr 1780

Sound Power Level H dB (A)

Sound Pressure Level

Dimensions W/H/D mm 795 610 290

Weight kg 40

Package Dimensions W/H/D mm 945 655 393

Units per Pallet Units 9

Stacking Height Units 3

Refrigerant Type R410A

Refrigerant Chargeless Distance g 1200

Additional Charge Per 1 Meter g/m No Need

Connections
Between Units

(3)

H/L dB (A)

(4)

H/L dB (A)

(4)

H dB (A)

Liquid Line

Suction Line

Max. Tubing Length m 20

Max. Height Difference m 10

Btu/hr

W

(mm)In

(mm)In

11940 (5800 - 16380) 15300 (5780-19720)

3500 (1700 - 4800) 4500 (1700 - 5800)

870 (460 - 1300) 1180 (350-1580)

4.02 3.81

220-240V / 1Ph / 50Hz

4.0 5.4

10.50

580-510-435 620-560-450

42-49 42-48

32-38 32-38

1.5

62 62

52 52

¼”

(6.35)

(9.53)

”

(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN14511.
(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.

Revision Y05-02Service Manual - K DCI

2-3

PRODUCT DATA SHEET

CONTENTSCONTENTS

2.4 K50 DCI

Model Indoor Unit K50 DCI
Model Outdoor Unit ONG35 DCI

Installation Method Flare

Characteristics Units Cooling Heating

Capacity

Power Input

COP

Energy Efficiency Class A A

Power Supply V/Ph/Hz

Rated Current A

Starting Current A

Circuit Breaker Rating A 16

Operation Control Type IR Remote Control

(1)

(1)

(1)

INDOOR

OUTDOOR

W

W/W

Fan Type & Quantity Centrifugal*1

(2)

Airflow

H/M/L m3/hr

External Static Pressure Min-Max Pa N/A

Sound Power Level

Sound Pressure Level

Moisture Removal L/hr

Condensate Drain Tube I.D. mm 16

Dimensions W/H/D mm 571 287 571

Weight kg 28

Package Dimensions W/H/D mm 685 415 685

Units per Pallet Units 10

Stacking Height Units 5

Refrigerant Control Electronic Expansion Valve

Compressor Type, Model SCROLL Panasonic 5CS130XCC03

Fan Type & Quantity Axial *1

Airflow H m3/hr 2160

Sound Power Level H dB (A)

Sound Pressure Level

Dimensions W/H/D mm 795 610 290

Weight kg

Package Dimensions W/H/D mm 945 655 393

Units per Pallet Units 9

Stacking Height Units 3

Refrigerant Type R410A

Refrigerant Chargeless Distance g 1500

Additional Charge Per 1 Meter g/m No Need

Connections
Between Units

(3)

H/M/L dB (A)

(4)

H/M/L dB (A)

(4)

H dB (A)

Liquid Line

Suction Line

Max. Tubing Length m 30

Max. Height Difference m 10

Btu/hr

W

(mm)In

(mm)In

17060 (4610 – 21840) 21500 (4610 - 25590)

5000 (1350 – 6400) 6300 (1350 – 7500)

1550 (530 – 2000) 1740 (350 – 2080)

3.23 3.62

220-240V / 1Ph / 50Hz

7.1 8.0

10.50

730-630-510

46 – 55 - 59

36 – 44 - 48.5

2

62 63
52 53

43

(6.35)

¼”

(12.7)

½”

2-4

(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN14511.
(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.

Revision Y05-02 Service Manual - K DCI

3. RATING CONDITIONS

CONTENTSCONTENTS

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

RATING CONDITIONS

Cooling:

Indoor: 27
Outdoor: 35

o

C DB 19oC WB

o

C DB

Heating:

Indoor: 20
Outdoor: 7

o

C DB

o

C DB 6oC WB

3.1 Operating Limits

Cooling

Heating

Voltage

Upper limit

Lower limit 21oC DB 15oC WB -10oC DB

Upper limit

Lower limit 10oC DB -15oC DB -16oC WB

1PH

3PH N/A

Indoor Outdoor

32oC DB 23oC WB 46oC DB

27oC DB 24oC DB 18oC WB

198 – 264 V

Revision Y05-02Service Manual - K DCI

3-1

4. OUTLINE DIMENSIONS

CONTENTSCONTENTS

4.1 Indoor Unit: K 25, 35, 35S, 50 DCI

OUTLINE DIMENSIONS

4.2

Outdoor Unit: ONG 25, 35, 35S, 50 DCI

Revision Y05-02Service Manual - K DCI

4-1

5. PERFORMANCE DATA

CONTENTSCONTENTS

5.1 K25 DCI

5.1.1 Cooling Capacity (kW) - Run Mode

PERFORMANCE DATA

OD COIL

ENTERING AIR DB

TEMPERATURE [C

-10 - 20

(protection range)

25

30

35

40

46

ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC]

DATA

0

]

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

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

PI 25 - 50 % of nominal
TC 2.42 2.57 2.73 2.89 3.05
SC 2.09 2.13 2.18 2.22 2.26

PI 0.46 0.47 0.48 0.49 0.50
TC 2.30 2.46 2.62 2.77 2.93
SC 2.04 2.08 2.12 2.17 2.21

PI 0.52 0.53
TC 2.18 2.34

0.54

2.50

0.54 0.55

2.66 2.82

SC 1.98 2.03 2.07 2.11 2.16

PI 0.57 0.58
TC 2.07 2.23

0.59

2.38

0.60 0.61

2.54 2.70

SC 1.93 1.97 2.02 2.06 2.10

PI 0.63 0.64 0.64 0.65 0.66
TC 1.93 2.09 2.24 2.40 2.56
SC 1.87 1.91 1.95 2.00 2.04

PI 0.69 0.70 0.71 0.72 0.73

LEGEND

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

o

o

C)

C)

ID – Indoor
OD – Outdoor

5.1.2 Capacity Correction Factors

Cooling Capacity Ratio Vs. Outdoor Temperature

1.2

1.1

1

0.9

0.8

0.7

Capacity Ration

0.6

0.5

20 25 30 35 40 45

Outdoor T emperature [deg C]

Revision Y05-02Service Manual - K DCI

5-1

PERFORMANCE DATA

CONTENTSCONTENTS

5.1.3 Heating Capacity (kW) - Run Mode

ID COIL ENTERING AIR DB TEMPERATURE [ºC]

OD COIL

ENTERING AIR DB/

WB TEMPERATURE

[ºC]

-15/-16

-10/-12

-7/-8

-1/-2

2/1

7/6

10/9

15/12

15-24

(Protection Range)

DATA 15 20 25

TC 2.16 2.01 1.86

PI 0.55 0.60 0.66

TC 2.41 2.26 2.11

PI 0.66 0.72 0.77

TC 2.59 2.44 2.29

PI 0.75 0.80 0.86

TC 2.68 2.53 2.38

PI 0.79 0.84 0.90

TC 2.75 2.59 2.44

PI 0.82

TC 3.55

PI 0.86

TC 3.75

PI 0.91 0.97 1.02

TC 3.94 3.79 3.64

PI 0.96 1.02 1.07

TC 85 - 105 % of nominal

PI 80 - 120 % of nominal

0.87

3.40

0.92

3.60

0.93

3.25

0.97

3.44

LEGEND

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

o

o

C)

C)

ID – Indoor
OD – Outdoor

5.1.4 Capacity Correction Factors

Heating Capacity Ratio Vs. Outdoor Temperature

1.2

1.1

1

0.9

0.8

0.7

Capacity Rat ion

0.6

0.5

-15 -10 -5 0 5 10 15

Outdoor WB Temperature [deg C]

5-2

Revision Y05-02 Service Manual - K DCI

PERFORMANCE DATA

CONTENTSCONTENTS

5.2 Capacity Correction Factor Due to Tubing Length

5.2.1 Cooling

1.01

1.00

0.99

0.98

0.97

0.96

0.95

0.94

Capacity Ratio

0.93

0.92

0.91

3 4 5 6 7 8 9 1011121314151617181920

Tubing Length [m]

5.2.2 Heating

1.02

1.00

0.98

0.96

0.94

Capacity Ratio

0.92

0.90

34567891011121314151617181920

Tubing Length [m]

Revision Y05-02Service Manual - K DCI

5-3

PERFORMANCE DATA

CONTENTSCONTENTS

5.3 K35 DCI

5.3.1 Cooling Capacity (kW) - Run Mode

OD COIL

ENTERING AIR DB

TEMPERATURE [ºC]

-10 - 20

(protection range)

25

30

35

40

46

ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC]

DATA

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

TC 80 - 110 % of nominal

SC 80 - 105 % of nominal

PI 25 - 50 % of nominal

TC 3.38 3.60 3.83 4.05 4.27
SC 2.65 2.70 2.75 2.81 2.86

PI 0.75 0.76 0.78 0.79 0.80

TC 3.22 3.44 3.66 3.88 4.11
SC 2.58 2.63 2.69 2.74 2.79

PI 0.83 0.85

TC 3.06 3.28

0.86

3.50

0.88 0.89

3.72 3.94

SC 2.51 2.57 2.62 2.67 2.73

PI 0.92 0.94

TC 2.89 3.12

0.95

3.34

0.96 0.98

3.56 3.78

SC 2.45 2.50 2.55 2.61 2.66

PI 1.01 1.02 1.04 1.05 1.07

TC 2.70 2.92 3.14 3.36 3.58
SC 2.37 2.42 2.47 2.53 2.58

PI 1.11 1.13 1.14 1.16 1.17

LEGEND

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

o

o

C)

C)

ID – Indoor

5.3.2 Capacity Correction Factors

Cooling Capacity Ratio Vs. Outdoor Temperature

1.2

1.1

1

0.9

0.8

0.7

Capacity Rat ion

0.6

0.5

20 25 30 35 40 45

Outdoor T emperature [deg C]

5-4

Revision Y05-02 Service Manual - K DCI

5.3.3 Heating Capacity (kW) - Run Mode

CONTENTSCONTENTS

ID COIL ENTERING AIR DB TEMPERATURE [ºC]

OD COIL

ENTERING AIR DB/

WB TEMPERATURE

[ºC]

-15/-16

-10/-12

-7/-8

-1/-2

2/1

7/6

10/9

15/12

15-24

(Protection Range)

DATA 15 20 25

TC 2.74 2.55 2.35

PI 0.80 0.88 0.96

TC 3.05 2.86 2.66

PI 0.96 1.04 1.12

TC 3.28 3.09 2.90

PI 1.09 1.17 1.25

TC 3.39 3.20 3.01

PI 1.15 1.23 1.31

TC 3.47 3.28 3.09

PI 1.19

TC 4.49

PI 1.25

TC 4.74

PI 1.32 1.40 1.49

TC 4.99 4.80 4.60

PI 1.40 1.48 1.56

TC 85 - 105 % of nominal

PI 80 - 120 % of nominal

1.27

4.30

1.33

4.55

PERFORMANCE DATA

1.35

4.11

1.41

4.36

LEGEND

TC – Total Cooling Capacity, kW
PI – Power Input, kW

o

WB – Wet Bulb Temp., (
DB – Dry Bulb Temp., (

o

C)

C)
ID – Indoor
OD – Outdoor

5.3.4 Capacity Correction Factors

Heating Capacity Ratio Vs. Outdoor Temperature

1.2

1.1

1

0.9

0.8

0.7

Capacity Rat ion

0.6

0.5

-15 -10 -5 0 5 10 15

Outdoor WB Temperature [de g C]

Revision Y05-02Service Manual - K DCI

5-5

PERFORMANCE DATA

CONTENTSCONTENTS

5.4 Capacity Correction Factor Due to Tubing Length

5.4.1 Cooling

1.01

1.00

0.99

0.98

0.97

0.96

0.95

0.94

Capacity Ratio

0.93

0.92

0.91

3 4 5 6 7 8 9 1011121314151617181920

Tubing Length [m]

5.4.2 Heating

1.02

1.00

0.98

0.96

0.94

Capacity Ratio

0.92

0.90

3 4 5 6 7 8 9 1011121314151617181920

Tubing Length [m]

5-6

Revision Y05-02 Service Manual - K DCI

5.5 K35S DCI

CONTENTSCONTENTS

5.5.1 Cooling Capacity (kW) - Run Mode

PERFORMANCE DATA

OD COIL

ENTERING AIR DB

TEMPERATURE [ºC]

-10 - 20

(protection range)

25

30

35

40

46

ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC]

DATA

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

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

PI 25 - 50 % of nominal
TC 3.38 3.60 3.83 4.05 4.27
SC 2.65 2.70 2.75 2.81 2.86

PI 0.68 0.70 0.71 0.72 0.74
TC 3.22 3.44 3.66 3.88 4.11
SC 2.58 2.63 2.69 2.74 2.79

PI 0.76 0.78
TC 3.06 3.28

0.79

3.50

0.80 0.82

3.72 3.94

SC 2.51 2.57 2.62 2.67 2.73

PI 0.84 0.86
TC 2.89 3.12

0.87

3.34

0.88 0.90

3.56 3.78

SC 2.45 2.50 2.55 2.61 2.66

PI 0.92 0.94 0.95 0.96 0.98
TC 2.70 2.92 3.14 3.36 3.58
SC 2.37 2.42 2.47 2.53 2.58

PI 1.02 1.03 1.05 1.06 1.07

LEGEND

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

o

o

C)

C)

ID – Indoor
OD – Outdoor

5.5.2 Capacity Correction Factors

Cooling Capacity Ratio Vs. Outdoor Temperature

1.2

1.1

1

0.9

0.8

0.7

Capacity Rat ion

0.6

0.5

20 25 30 35 40 45

Outdoor Te mperature [deg C]

Revision Y05-02Service Manual - K DCI

5-7

PERFORMANCE DATA

CONTENTSCONTENTS

5.5.3 Heating Capacity (kW) - Run Mode

ID COIL ENTERING AIR DB TEMPERATURE [ºC]

OD COIL

ENTERING AIR DB/

WB TEMPERATURE

[ºC]

-15/-16

-10/-12

-7/-8

-1/-2

2/1

7/6

10/9

15/12

15-24

(Protection Range)

DATA 15 20 25

TC 2.86 2.66 2.46

PI 0.71 0.78 0.85

TC 3.19 2.99 2.79

PI 0.85 0.93 1.00

TC 3.43 3.23 3.03

PI 0.96 1.03 1.11

TC 3.55 3.35 3.15

PI 1.02 1.09 1.16

TC 3.63 3.43 3.23

PI 1.05

TC 4.70

PI 1.11

TC 4.96

PI 1.17 1.25 1.32

TC 5.22 5.02 4.82

PI 1.24 1.31 1.38

TC 85 - 105 % of nominal

PI 80 - 120 % of nominal

1.13

4.50

1.18

4.76

1.20

4.30

1.25

4.56

LEGEND

TC – Total Cooling Capacity, kW
PI – Power Input, kW

o

WB – Wet Bulb Temp., (
DB – Dry Bulb Temp., (

o

C)

C)
ID – Indoor
OD – Outdoor

5.5.4 Capacity Correction Factors

Heating Capacity Ratio Vs. Outdoor Temperature

1.2

1.1

1

0.9

0.8

0.7

Capacity Ration

0.6

0.5

-15 -10 -5 0 5 10 15

Outdoor WB Temperature [deg C]

5-8

Revision Y05-02 Service Manual - K DCI

PERFORMANCE DATA

CONTENTSCONTENTS

15.6 Capacity Correction Factor Due to Tubing Length

5.6.1 Cooling

1.01

1.00

0.99

0.98

0.97

0.96

0.95

0.94

Capacity Ratio

0.93

0.92

0.91

3 4 5 6 7 8 9 1011121314151617181920

Tubing Length [m]

5.6.2 Heating

1.02

1.00

0.98

0.96

0.94

Capacity Ratio

0.92

0.90

3 4 5 6 7 8 9 1011121314151617181920

Tubing Length [m]

Revision Y05-02Service Manual - K DCI

5-9

PERFORMANCE DATA

CONTENTSCONTENTS

5.7 K50 DCI

5.7.1 Cooling Capacity (kW) - Run Mode

OD COIL

ENTERING AIR DB

TEMPERATURE [ºC]

-10 - 20

(protection range)

25

30

35

40

46

ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC]

DATA

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

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

PI 25 - 50 % of nominal
TC 4.85 5.13 5.42 5.70 5.99
SC 3.30 3.35 3.40 3.45 3.50

PI 1.20 1.23 1.26 1.28 1.31
TC 4.60 4.88 5.17 5.45 5.74
SC 3.17 3.22 3.27 3.32 3.37

PI 1.37 1.40
TC 4.35 4.63

1.42

4.92

1.45 1.48

5.20 5.49

SC 3.04 3.09 3.14 3.19 3.24

PI 1.54 1.56
TC 4.10 4.39

1.59

4.67

1.62 1.64

4.96 5.24

SC 2.91 2.96 3.01 3.06 3.11

PI 1.70 1.73 1.76 1.78 1.81
TC 3.80 4.09 4.37 4.66 4.94
SC 2.76 2.81 2.86 2.91 2.95

PI 1.90 1.93 1.96 1.98 2.01

LEGEND

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

o

o

C)

C)

ID – Indoor
OD – Outdoor

5.7.2 Capacity Correction Factors

Cooling Capacity Ratio Vs. Outdoor Temperature

1.2

1.1

1

0.9

0.8

0.7

Capacity Ration

0.6

0.5

20 25 30 35 40 45

Outdoor Temperature [deg C]

5-10

Revision Y05-02 Service Manual - K DCI

5.7.3 Heating Capacity (kW) - Run Mode

CONTENTSCONTENTS

ID COIL ENTERING AIR DB TEMPERATURE [ºC]

OD COIL ENTERING

AIR DB/WB

TEMPERATURE [ºC]

DATA 15 20 25

PERFORMANCE DATA

-15/-16

-10/-12

-7/-8

-1/-2

2/1

7/6

10/9

15/12

15-24

(Protection Range)

LEGEND

TC 2.66 2.28 1.90

PI 1.15 1.23 1.31

TC 3.52 3.13 2.75

PI 1.30 1.38 1.46

TC 4.16 3.77 3.39

PI 1.41 1.49 1.57

TC 4.47 4.09 3.71

PI 1.46 1.55 1.63

TC 4.69 4.30 3.92

PI 1.50

TC 6.24

PI 1.56

TC 6.56

1.58

5.85

1.64

6.18

1.66

5.47

1.72

5.79

PI 1.59 1.67 1.75

TC 6.88 6.50 6.12

PI 1.62 1.70 1.78

TC 85 - 105 % of nominal

PI 80 - 120 % of nominal

TC – Total Cooling Capacity, kW
PI – Power Input, kW

o

WB – Wet Bulb Temp., (
DB – Dry Bulb Temp., (

o

C)

C)
ID – Indoor
OD – Outdoor

5.7.4 Capacity Correction Factors

Heating Capacity Ratio Vs. Outdoor Temperature

1.2

1.1

1

0.9

0.8

0.7

0.6

Capacity Rat ion

0.5

0.4

-15 -10 -5 0 5 10 15

Outdoor WB Te mperature [deg C]

Revision Y05-02Service Manual - K DCI

5-11

PERFORMANCE DATA

CONTENTSCONTENTS

5.8 Capacity Correction Factor Due to Tubing Length

5.8.1 Cooling

1.001

1.000

0.999

0.998

0.997

0.996

0.995

Capacity Ratio

0.994

0.993

0 5 10 15 20 25 30 35

Tubing Length[m]

5.8.2 Heating

1.02

1.00

0.98

0.96

0.94

0.92

0.90

Capacity Ratio

0.88

0.86

0 5 10 15 20 25 30 35

Tubing Length[m]

5-12

Revision Y05-02 Service Manual - K DCI

6. PRESSURE CURVES

CONTENTSCONTENTS

6.1 Model: K 25 DCI

6.1.1 Cooling – Test Mode

Suction Pressure Vs.Outdoor Temp' - Cooling

1400

1300

1200

1100

1000

900

800

700

600

Suction Pressure [kPa]

500

10 15 20 25 30 35 40 45

PRESSURE CURVES

Indoor DB/WB

Temp.

22/15

24/17

27/19

29/21

32/23

Discharge Pressure [kPa]

Outdoor DB Temperature [ºC]

Discharge Pressure Vs.Outdoor Temp'- Cooling

4000
3750
3500
3250
3000
2750
2500
2250
2000
1750
1500
1250
1000

10 15 20 25 30 35 40 45

Outdoor DB Temperature [ºC]

Indoor

DB/W B

22/15

24/17

27/19

29/21

32/23

Revision Y05-02Service Manual - K DCI

6-1

PRESSURE CURVES

CONTENTSCONTENTS

6.1.2 Heading – Test Mode

Suction Pressure Vs. Outdoor Temp' - Heating

1300
1200
1100
1000

900
800
700
600
500
400

Suction Pressure [kPa]

300
200

-15 -10 -5 0 5 10 15

Outdoor WB Temperature[ºC]

Indoor DB

15

20

25

Discharge Pressure [kPa]

Discharge Pressure Vs.Outdoor Temp'- Heating

4000
3750
3500
3250
3000
2750
2500
2250
2000
1750
1500
1250
1000

-15 -10 -5 0 5 10 15

Outdoor WB Temperature [ºC]

Indoor DB

15

20

25

6-2

Revision Y05-02 Service Manual - K DCI

6.2 Model: K 35 DCI

CONTENTSCONTENTS

6.2.1 Cooling – Test Mode

Suction Pressure Vs.Outdoor Temp' - Cooling

PRESSURE CURVES

Suction Pressure [kPa]

Discharge Pressure [kPa]

1400

1300

1200

1100

1000

900

800

700

600

500

10 15 20 25 30 35 40 45

Outdoor DB Temperature [ºC]

Discharge Pressure Vs.Outdoor Temp'- Cooling

4000
3750
3500
3250
3000
2750
2500
2250
2000
1750
1500
1250
1000

10 15 20 25 30 35 40 45

Indoor

DB/W B

22/15

24/17

27/19

29/21

32/23

Indoor

DB/WB

22/15

24/17

27/19

29/21

32/23

Outdoor DB Temperature [ºC]

Revision Y05-02Service Manual - K DCI

6-3

PRESSURE CURVES

CONTENTSCONTENTS

6.2.2 Heating – Test Mode

Suction Pressure Vs.Outdoor Temp' - Cooling

Suction Pressure [kPa]

Discharge Pressure [kPa]

1400

1300

1200

1100

1000

900

800

700

600

500

10 15 20 25 30 35 40 45

Outdoor DB Temperature [ºC]

Discharge Pressure Vs.Outdoor Temp'- Cooling

4000
3750
3500
3250
3000
2750
2500
2250
2000
1750
1500
1250
1000

10 15 20 25 30 35 40 45

Indoor

DB/W B

22/15

24/17

27/19

29/21

32/23

Indoor

DB/WB

22/15

24/17

27/19

29/21

32/23

6-4

Outdoor DB Temperature [ºC]

Revision Y05-02 Service Manual - K DCI

6.3 Model: K 35S DCI

CONTENTSCONTENTS

6.3.1 Cooling – Test Mode

Suction Pressure Vs.Outdoor Temp' - Cooling

1400

1300

1200

1100

1000

900

800

700

600

Suction Pressure [kPa]

500

10 15 20 25 30 35 40 45

PRESSURE CURVES

Indoor

DB/WB

22/15

24/17

27/19

29/21

32/23

Discharge Pressure [kPa]

Outdoor DB Temperature[ºC]

Discharge Pressure Vs.Outdoor Temp' - Cooling

4000
3750
3500
3250
3000
2750
2500
2250
2000
1750
1500
1250
1000

10 15 20 25 30 35 40 45

Outdoor DB Temperature[ºC]

Indoor

DB/WB

22/15

24/17

27/19

29/21

32/23

Revision Y05-02Service Manual - K DCI

6-5