Airwell DLF 25 DCI User manual

SM DLF 1-A.1 GB
DLF DC Inverter Series
Indoor Units Outdoor Units
DLF 25 DCI ONG3-25 DCI
DLF 35 DCI ONG3-35 DCI
DLF 50 DCI DCI 50
DLF 60 DCI DCI 60
DLF 72 DCI DCI 72Z
AUGUST – 2008
REFRIGERANT
R410A HEAT PUMP

A
LIST OF EFFECTIVE PAGES
SM DLF 1-A.1 GB
LIST OF EFFECTIVE PAGES
Note: Changes in the pages are indicated by a “Revision#” in the footer of each effected page
(when none indicates no changes in the relevant page). All pages in the following list represent
effected/ non effected pages divided by chapters.
Dates of issue for original and changed pages are:
Original ....... 0 ........ November 2007
Total number of pages in this publication is 145 consisting of the following:
Page
No.
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No. #
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•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
SM DLF 1-A.1 GB
Table of Contents
1. INTRODUCTION ...................................................................................................1-1
2. PRODUCT DATA SHEET......................................................................................2-1
3. RATING CONDITIONS..........................................................................................3-1
4. OUTLINE DIMENSIONS .......................................................................................4-1
5. PERFORMANCE DATA & PRESSURE CURVES ................................................5-1
6. AIRFLOW CURVES ..............................................................................................6-1
7. SOUND LEVEL CHARACTERISTICS ..................................................................7-1
8. ELECTRICAL DATA..............................................................................................8-1
9. WIRING DIAGRAMS .............................................................................................9-1
10. ELECTRICAL CONNECTIONS.............................................................................10-1
11. REFRIGERATION DIAGRAMS.............................................................................11-1
12. TUBING CONNECTIONS......................................................................................12-1
13. CONTROL SYSTEM .............................................................................................13-1
14. TROUBLESHOOTING ..........................................................................................14-1
15. EXPLODED VIEWS AND SPARE PARTS LISTS.................................................15-1
16. APPENDIX A .........................................................................................................16-1

1-1
INTRODUCTION
SM DLF 1-A.1 GB
1. INTRODUCTION
1.1 General
The new DLF DC INVERTER concealed split unit range comprises the RC (heat pump)
models as follow:
● DLF 25
● DLF 35
● DLF 50
● DLF 60
● DLF 72
Remote control compatibility
The DLF unit is compatible with remote controls RC3, RC4, RCW1, RCW2, and RC7.
Unlike standard units (fix RPM) that are selected according to their nominal capacity to
overcome the maximum required load; DC Inverter units can be selected to a smaller
nominal capacity range unit.
It made possible due to the ability of inverters to reach a much higher capacity level
(indicated as Maximum Capacity) which is around 115-130% of the nominal capacity.
1.2 Main Features
High level DC inverter system combined with concealed indoor units.
The system consists of high technology DC Brushless compressor, outdoor and indoor
fan motors.
The system adopts new ODP free refrigerant R410A and other environmental regulations
such as RoHS, WEEE, etc.
We believe this is the most suitable solution for residential and light commercial air
conditioning.
The indoor with only 200 mm height and together with the integrated water pump allows
best fit into very low ceiling space.
The units’ unique feature is the option of install the unit in horizontal or vertical position
without any additional work.
The unit low noise level (up to 25 DBA) fits perfectly for application as hotels, bed room
and small offices.
The DLF series benefits from the most advanced technological innovations, namely:
 Variable cooling and heating capacity from 30% to 115% (of rated capacity)
 High COP
 Low noise levels in both indoors and outdoors
 Extreme low silhouette, only 200mm.
 Pre-charged system up to 30m
 Tubing up to 50m length and 30m height difference
 Networking connectivity
 Dry contact output – Alarm
 Ready for base heater and crank case heater installation including software support
 HMI Display consists of 7-segments shows system diagnostics and setup (in some
models only)
 Monitoring software (PC port for high level service)
 Operating range cooling: From -10ºC to 46ºC outdoors
 Operating range heating: From -15ºC to 24ºC outdoors

1-2
INTRODUCTION
SM DLF 1-A.1 GB
1.3 Indoor Unit
The indoor unit can fit easily to many types of residential and commercials applications.
It includes:
 Water-pump drainage build-in.
 Emergency Water-float to prevent over flow.
 Horizontal/ Vertical installation build in.
 2 options of return air location, on back of the unit or bellow the unit.
 DC BL motor with maximum fan speed flexibility.
 High technology plastic fan and fan housing.
 Advanced electronic control box assembly with 1-meter cable to allow installation at
a more accessible area.
1.4 Filtration
The air filter can be located in the back side or in the bottom of the unit for easy ac-
cess.
1.5 Control
The microprocessor indoor controller, and an infrared remote control, supplied as
standard, provides complete operating function and programming. For further details,
please refer to the Operation Manual, Appendix A.
1.6 Outdoor Unit
The 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 paintwork allowing long life
resistance. All outdoor units are pre-charged. For further information, please refer to the
Product Data Sheet, Chapter 2.
It includes:
● Compressor mounted in a soundproofed compartment :
Rotary – for DLF 25-35
Scroll – for DLF 50-60-72
● Improved 3- blades axial fans for noise reduction.
● Outdoor coil with hydrophilic fins for RC units optimised for operation with R 410A
refrigerant.
● Fan grill air outlet.
● Service valves” flare” type connection.
● Interconnecting wiring terminal block.
1.7 Tubing Connections
Flare type-interconnecting tubing to be produced on site.
For further details, please refer to the Installation Manual, Chapter 9.

1-3
INTRODUCTION
SM DLF 1-A.1 GB
1.8 Accessories
RCW Wall Mounted Remote Control
The RCW remote control is mounted on the wall, and controls the unit either as an
infrared remote control or as a wired controller. The wired controller can control up to 10
Indoor units with the same program settings and adjustments.
For further details, please refer to the Technical Service Manual.
1.9 Inbox Documentation
Each unit includes its own installation and operation manuals.
1.10 Matching Table
OUTDOOR UNITS
INDOOR UNITS
MODEL RE-
FRIGER.DLF 25 DLF 35 DLF 50 DLF 60 DLF 72
DCI 25 (ONG3) R410A √
DCI 35 (ONG3) R410A √
DCI 50 (ONG3) R410A √
DCI 60 (GC24) R410A √
DCI 72Z
(GC30) R410A √
DUO DCI R410A √√
TRIO DCI R410A √√√
QUATTRO
DCI R410A √√√

2-1
PRODUCT DATA SHEET
SM DLF 1-A.1 GB
2. PRODUCT DATA SHEET
2.1 DLF 25 DCI
Model Indoor Unit DLF 25 DCI
Model Outdoor Unit ONG3-25 DCI
Installation method of Pipe DUCTED
Characteristics Units Cooling Heating
Capacity (1) Btu/hr 8500 (4780-12280) 11600 (5120-17060)
kW 2.5 (1.40-3.60) 3.4 (1.50-5.0)
Power input (1) kW 0.625 0.87
EER (Cooling) or COP (Heating) (1) W/W 4.0 3.9
Energy efficiency class A A
Power supply V/Ph/Hz 220-240/1/50
Rated current A 2.7 3.6
Starting current A 10.5
Circuit breaker rating A 16
INDOOR
Fan type & quantity Centrifugal & 2
Fan speeds H/ M/ L RPM 920/810/740
Air flow (2) H/ M/ L m³/hr 620/560/490
External static pressure Min-Max Pa 0-30
Sound power level (3) H/ M/ L dB(A) 50/47/44
Sound pressure level (4) H/ M/ L dB(A) 29/26/23
Moisture removal L/hr 0.5
Condensate drain tube I.D mm 19
Dimensions WxHxD mm 750x630x200
Weight kg 20
Package dimensions WxHxD mm 885x695x226
Packaged weight kg 23
Units per pallet Units 14
Stacking height Units 7
OUTDOOR
Refrigerant control Electronic Expansion Valve
Compressor type, model DC Inverter single rotary
Fan type & quantity Axial & 1
Air flow H / L m³/hr 1780
Sound power level H / L dB(A) 60
Sound pressure level (4) H / L dB(A) 50
Dimensions WxHxD mm 795x610x290
Weight kg 38
Package dimensions WxHxD mm 945x655x395
Packaged weight kg 41
Units per pallet Units 9
Stacking height Units 3
Refrigerant type R410A
Refrigerant charge (standard connecting
tubing length) kg 1.1
Additional charge per 1 meter g/m No need
Connections
between units
Liquid line In. 1/4”
Suction line In. 3/8”
Max. tubing length m. 20
Max. height difference m. 15
Operation control type I.R Remote control
Heating elements kW
Others
(1) Rating conditions in accordance to ISO 5151 and ISO 13253 (for ducted units).
(2) Airflow without external static pressure.
(3) Sound power in ducted units is measured at air discharge.
(4) Sound pressure level measured at 1-meter distance from unit.

2-2
PRODUCT DATA SHEET
SM DLF 1-A.1 GB
2.2 DLF 35 DCI
Model Indoor Unit DLF 35 DCI
Model Outdoor Unit ONG3-35 DCI
Installation method of Pipe DUCTED
Characteristics Units Cooling Heating
Capacity (1) Btu/hr 11940 (4780-14670) 14670 (5100-19790)
kW 3.5 (1.40-4.30) 4.3 (1.50-5.80)
Power input (1) kW 0.95 1.16
EER (Cooling) or COP (Heating) (1) W/W 3.67 3.62
Energy efficiency class A A
Power supply V/Ph/Hz 220-240/1/50
Rated current A 3.67 4.8
Starting current A 10.5
Circuit breaker rating A 16
INDOOR
Fan type & quantity Centrifugal & 2
Fan speeds H/ M/ L RPM 980/860/730
Air flow (2) H/ M/ L m³/hr 650/580/490
External static pressure Min-Max Pa 0-30
Sound power level (3) H/ M/ L dB(A) 53/49/45
Sound pressure level (4) H/ M/ L dB(A) 31/27/24
Moisture removal L/hr 1.0
Condensate drain tube I.D mm 19
Dimensions WxHxD mm 200x750x630
Weight kg 20
Package dimensions WxHxD mm 885x695x226
Packaged weight kg 23
Units per pallet Units 14
Stacking height Units 7
OUTDOOR
Refrigerant control Electronic Expansion Valve
Compressor type, model DC Inverter single rotary
Fan type & quantity Axial & 1
Air flow H / L m³/hr 1780
Sound power level H / L dB(A) 62
Sound pressure level (4) H / L dB(A) 52
Dimensions WxHxD mm 795x610x290
Weight kg 38
Package dimensions WxHxD mm 945x655x395
Packaged weight kg 43
Units per pallet Units 9
Stacking height Units 3
Refrigerant type R410A
Refrigerant charge (standard connecting
tubing length) kg 1.2
Additional charge per 1 meter g/m No need
Connections
between units
Liquid line In. 1/4”
Suction line In. 3/8”
Max. tubing length m. 20
Max. height difference m. 15
Operation control type I.R Remote control
Heating elements kW
Others
(1) Rating conditions in accordance to ISO 5151 and ISO 13253 (for ducted units).
(2) Airflow without external static pressure.
(3) Sound power in ducted units is measured at air discharge.
(4) Sound pressure level measured at 1-meter distance from unit.

2-3
PRODUCT DATA SHEET
SM DLF 1-A.1 GB
2.3 DLF 50 DCI
Model Indoor Unit DLF 50 DCI
Model Outdoor Unit DCI 50
Installation method of Pipe DUCTED
Characteristics Units Cooling Heating
Capacity (1) Btu/hr 17060 (5120-20470) 20470 (5120-25930)
kW 5.0 (1.50-6.00) 6.0 (1.50-7.60)
Power input (1) kW 1.5 1.73
EER (Cooling) or COP (Heating) (1) W/W 3.3 3.47
Energy efficiency class A A
Power supply V/Ph/Hz 220-240/1/50
Rated current A 6.5 7.6
Starting current A 10.5
Circuit breaker rating A 20
INDOOR
Fan type & quantity Centrifugal & 2
Fan speeds H/ M/ L RPM 1100/980/860
Air flow (2) H/ M/ L m³/hr 710/600/540
External static pressure Min-Max Pa 0-40
Sound power level (3) H/ M/ L dB(A) 54/51/48
Sound pressure level (4) H/ M/ L dB(A) 35/32/29
Moisture removal L/hr 1.5
Condensate drain tube I.D mm 19
Dimensions WxHxD mm 750x630x200
Weight kg 21
Package dimensions WxHxD mm 885x695x226
Packaged weight kg 24
Units per pallet Units 14
Stacking height Units 7
OUTDOOR
Refrigerant control Electronic Expansion Valve
Compressor type, model Scroll, DC
Fan type & quantity Axial & 1
Air flow H / L m³/hr 2160
Sound power level H / L dB(A) 63
Sound pressure level (4) H / L dB(A) 53
Dimensions WxHxD mm 795x610x290
Weight kg 39
Package dimensions WxHxD mm 945x655x395
Packaged weight kg 43
Units per pallet Units 9
Stacking height Units 3
Refrigerant type R410A
Refrigerant charge (standard connecting
tubing length) kg 1.5
Additional charge per 1 meter g/m No need
Connections
between units
Liquid line In. 1/4”
Suction line In. 1/2”
Max. tubing length m. 30
Max. height difference m. 15
Operation control type I.R Remote control
Heating elements kW
Others
(1) Rating conditions in accordance to ISO 5151 and ISO 13253 (for ducted units).
(2) Airflow without external static pressure.
(3) Sound power in ducted units is measured at air discharge.
(4) Sound pressure level measured at 1-meter distance from unit.

2-4
PRODUCT DATA SHEET
SM DLF 1-A.1 GB
2.4 DLF 60 DCI
Model Indoor Unit DLF 60 DCI
Model Outdoor Unit DCI 60
Installation method of Pipe DUCTED
Characteristics Units Cooling Heating
Capacity (1) Btu/hr 20800 (5120-22860) 22520 (5120-26950)
kW 6.1 (1.50-6.70) 6.6 (1.50-7.90)
Power input (1) kW 1.9 1.7
EER (Cooling) or COP (Heating) (1) W/W 3.25 3.81
Energy efficiency class A A
Power supply V/Ph/Hz 220-240/1/50
Rated current A 8.2 7.8
Starting current A 15
Circuit breaker rating A 20
INDOOR
Fan type & quantity Centrifugal & 3
Fan speeds H/ M/ L RPM 1170/1050/960
Air flow (2) H/ M/ L m³/hr 1100/950/880
External static pressure Min-Max Pa 0-40
Sound power level (3) H/ M/ L dB(A) 59/55/53
Sound pressure level (4) H/ M/ L dB(A) 38/34/32
Moisture removal L/hr 1.7
Condensate drain tube I.D mm 19
Dimensions WxHxD mm 1050x630x200
Weight kg 25
Package dimensions WxHxD mm 1185x695x226
Packaged weight kg 28
Units per pallet Units 14
Stacking height Units 7
OUTDOOR
Refrigerant control Electronic Expansion Valve
Compressor type, model Scroll
Fan type & quantity Axial & 1
Air flow H / L m³/hr 2860
Sound power level H / L dB(A) 65
Sound pressure level (4) H / L dB(A) 55
Dimensions WxHxD mm 846x690x302
Weight kg 46
Package dimensions WxHxD mm 990x770x430
Packaged weight kg 50
Units per pallet Units 9
Stacking height Units 3
Refrigerant type R410A
Refrigerant charge (standard connecting
tubing length) kg 1.65
Additional charge per 1 meter g/m No need
Connections
between units
Liquid line In. 1/4”
Suction line In. 1/2”
Max. tubing length m. 30
Max. height difference m. 15
Operation control type I.R Remote control
Heating elements kW
Others
(1) Rating conditions in accordance to ISO 5151 and ISO 13253 (for ducted units).
(2) Airflow without 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
SM DLF 1-A.1 GB
2.5 DLF 72 DCI
Model Indoor Unit DLF 72 DCI
Model Outdoor Unit DCI 72Z
Installation method of Pipe DUCTED
Characteristics Units Cooling Heating
Capacity (1) Btu/hr 23880 (5120-25600) 25420 (5120-30020)
kW 7.0 (1.50-7.50) 7.45 (1.50-8.80)
Power input (1) kW 2.1 2.1
EER (Cooling) or COP (Heating) (1) W/W 3.4 3.68
Energy efficiency class A A
Power supply V/Ph/Hz 220-240/1/50
Rated current A 9.3 9.3
Starting current A 15
Circuit breaker rating A 20
INDOOR
Fan type & quantity Centrifugal & 3
Fan speeds H/ M/ L RPM 1200/1050/980
Air flow (2) H/ M/ L m³/hr 1150/950/900
External static pressure Min-Max Pa 0-40
Sound power level (3) H/ M/ L dB(A) 63/59/56
Sound pressure level (4) H/ M/ L dB(A) 39/35/32
Moisture removal L/hr 2.0
Condensate drain tube I.D mm 19
Dimensions WxHxD mm 1050x630x200
Weight kg 25
Package dimensions WxHxD mm 1185x695x226
Packaged weight kg 28
Units per pallet Units 14
Stacking height Units 7
OUTDOOR
Refrigerant control Electronic Expansion Valve
Compressor type, model Twin rotary
Fan type & quantity Axial & 1
Air flow H / L m³/hr 3600
Sound power level H / L dB(A) 66
Sound pressure level (4) H / L dB(A) 56
Dimensions WxHxD mm 950x835x412
Weight kg 65.5
Package dimensions WxHxD mm 1080x910x477
Packaged weight kg 73
Units per pallet Units 2
Stacking height Units 2
Refrigerant type R410A
Refrigerant charge (standard connecting
tubing length) kg 2.3
Additional charge per 1 meter g/m 7.5m<Length≤20m:+0g; 20m<Length≤30m:+300g;
30m<Length≤50m; +1500g
Connections
between units
Liquid line In. 3/8”
Suction line In. 5/8”
Max. tubing length m. 50
Max. height difference m. 30
Operation control type I.R Remote control
Heating elements kW
Others
(1) Rating conditions in accordance to ISO 5151 and ISO 13253 (for ducted units).
(2) Airflow without 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
SM DLF 1-A.1 GB
3. RATING CONDITIONS
Standard conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and
EN 14511.
Cooling:
Indoor: 27oC DB 19oC WB
Outdoor: 35 oC DB
Heating:
Indoor: 20oC DB
Outdoor: 7oC DB 6oC WB
3.1 Operating Limits
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 20oC DB -15oC DB -16oC WB
Voltage 1PH 198 – 264V

4-1
OUTLINE DIMENSIONS
SM DLF 1-A.1 GB
4. OUTLINE DIMENSIONS
4.1 Indoor Unit: DLF 25, 35, 50, 60, 72
A C
565
B
629 (640 With air filter)
59
21
200
27160
59
Nominal Capacity A B C
2.5 -5.0 kW 750 696 790
6.0-7.2 kW 1050 996 1090

4-2
OUTLINE DIMENSIONS
SM DLF 1-A.1 GB
4.2 Outdoor Unit: DCI 25, 35, 50
4.3 Outdoor Unit: DCI 60

4-3
OUTLINE DIMENSIONS
SM DLF 1-A.1 GB
4.4 Outdoor Unit: DCI 72Z

5-1
PERFORMANCE DATA & PRESSURE CURVES
SM DLF 1-A.1 GB
5. PERFORMANCE DATA & PRESSURE CURVES
5.1 DLF 25 / ONG3-25 DCI
5.1.1 Cooling Capacity (kW)
ID COIL ENTERING AIR DB/WB TEMPERATURE [C0]
OD COIL ENTERING AIR
DB TEMPERATURE [CO]DATA 22/15 24/17 27/19 29/21 32/23
-10 - 20
(protection range)
TC 80 - 110 % of nominal
SC 80 - 105 % of nominal
PI 25 - 50 % of nominal
25
TC 2.42 2.57 2.73 2.89 3.05
SC 2.02 2.06 2.10 2.14 2.18
PI 0.49 0.50 0.51 0.52 0.52
30
TC 2.30 2.46 2.62 2.77 2.93
SC 1.97 2.01 2.05 2.09 2.13
PI 0.54 0.55 0.56 0.57 0.58
35
TC 2.18 2.34 2.50 2.66 2.82
SC 1.92 1.96 2.00 2.04 2.08
PI 0.60 0.61 0.62 0.63 0.64
40
TC 2.07 2.23 2.38 2.54 2.70
SC 1.87 1.91 1.95 1.99 2.03
PI 0.66 0.67 0.68 0.69 0.70
46
TC 1.93 2.09 2.24 2.40 2.56
SC 1.81 1.85 1.89 1.93 1.97
PI 0.73 0.74 0.75 0.75 0.76
LEGEND
TC – Total Cooling Capacity, kW
SC – Sensible Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (oC)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OD – Outdoor
5.1.2 Capacity Correction Factors (Cooling)
Cooling Capacity Ratio Vs.Outdoor Temperature
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
20 25 30 35 40 45
Outdoor Temperature DB [deg C]
Capacity Factor

5-2
PERFORMANCE DATA & PRESSURE CURVES
SM DLF 1-A.1 GB
5.1.3 Heating
ID COIL ENTERING AIR DB TEMPERATURE [°C]
OD COIL ENTERING AIR
DB/WB TEMPERATURE
[°C]
DATA 15 20 25
-15/-16 TC 2.16 2.01 1.86
PI 0.52 0.58 0.63
-10/-12 TC 2.41 2.26 2.11
PI 0.63 0.68 0.74
-7/-8 TC 2.59 2.44 2.29
PI 0.71 0.76 0.82
-1/-2 TC 2.68 2.53 2.38
PI 0.78 0.83 0.88
2/1 TC 2.75 2.59 2.44
PI 0.82 0.87 0.92
7/6 TC 3.55 3.40 3.25
PI 0.82 0.87 0.92
10/9 TC 3.75 3.60 3.44
PI 0.87 0.92 0.97
15/12 TC 3.94 3.79 3.64
PI 0.91 0.97 1.02
15-24 TC 85 - 105 % of nominal
(Protection Range) PI 80 - 120 % of nominal
LEGEND
TH – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (oC)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OD – Outdoor
5.1.4 Capacity Correction Factors (Heating)
Heating Capacity Ratio Vs. Outdoor Temperature
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
-20 -15 -10 -5 0 5 10 15
Outdoor WB Temperature [deg C]
Capacity Factor

5-3
PERFORMANCE DATA & PRESSURE CURVES
SM DLF 1-A.1 GB
5.1.5 Pressure Curves (Cooling – Test Mode)
Suction Pressure - Cooling (Technician Mode)
500
600
700
800
900
1000
1100
1200
1300
1400
10 15 20 25 30 35 40 45
Outdoor DB Temperature [°C]
Suction Pressure [KPa(g)]
32/23
29/21
27/19
24/17
22/15
Discharge Pressure - Cooling (Technician Mode)
1000
1250
1500
1750
2000
2250
2500
2750
3000
3250
3500
3750
4000
10 15 20 25 30 35 40 45
Outdoor DB Temperature [°C]
Discharge Pressure [KPa(g)]
32/23
29/21
27/19
24/17
22/15

5-4
PERFORMANCE DATA & PRESSURE CURVES
SM DLF 1-A.1 GB
5.1.6 Pressure Curves (Heating – Test Mode)
Suction Pressure - Heating (Technician Mode)
200
300
400
500
600
700
800
900
1000
1100
1200
1300
-15 -10 -5 0 5 10 15
Outdoor WB Temperature [°C]
Suction Pressure [KPa(g)]
15
20
25
Discharge Pressure - Heating (Technician Mode)
1000
1250
1500
1750
2000
2250
2500
2750
3000
3250
3500
3750
4000
-15 -10 -5 0 5 10 15
Outdoor WB Temperature [°C]
Discharge Pressure [KPa(g)]
15
20
25

5-5
PERFORMANCE DATA & PRESSURE CURVES
SM DLF 1-A.1 GB
5.1.7 Capacity Correction Factor Due to Tubing Length
Cooling
Heating
0.75
0.80
0.85
0.90
0.95
1.00
1.05
5 1015202530
Tubing Lenght [m]
Capacity Ratio
0.75
0.80
0.85
0.90
0.95
1.00
1.05
5 1015202530
Tubing Lenght [m]
Capacity Ratio