Airwell FSF045 User manual

YFF Series
Indoor Units Outdoor Units
FSF045 YFF045
DECEMBER 2010
REFRIGERANT
HEAT PUMP
R410A
SM FSF045 1-A.0GB

LIST OF EFFECTIVE PAGES
A SM FSF045 1-A.0 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 ........ March 2009
Total number of pages in this publication is 53 consisting of the following:
Page
No.
Revision
No. #
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No.
Revision
No. #
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No.
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No. #
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4-1 - 4-2 .................... 0
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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.

TABLE OF CONTENTS
i
SM FSF045 1-A.0 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. SOUND LEVEL CHARACTERISTICS ..................................................................6-1
7. WIRING DIAGRAMS .............................................................................................7-1
8. ELECTRICAL DATA..............................................................................................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 .........................................................................................................14-1

1-1
INTRODUCTION
SM FSF045 1-A.0 GB
1. INTRODUCTION
1.1 General
The floor standing fixed speed with nominal capacity 45kBtu/h is particulary suited for
residential and light commercial heating and air conditioning needs.
The new line provides the most comfort and economical solutions of air conditioning.
1.2 Main Features
• DCI R410A models
• Auto mode.
• Cooling
• Dehumidification
• Sleep mode
• ON/OFF timer
• Clock display
• Vertical Auto swing
• Horizontal Auto swing
• Intelligent deicing
• Memory from power failure
• Cold air prevention in heating
• Self diagnostic (Error indications) for ease of maintenance
• LED display
• Crank heater(Optional)
1.3 Indoor Unit
The indoor unit is floor stanging and can be easily fitted to many types of residential and
commercials applications.
It includes:
• Coil with hydrophilic aluminum fins.
• Motorized flaps (step motors)
• Advanced electronic control box assembly
1.4 Filtration
The series presents air filters:
• 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
SM FSF045 1-A.0 GB
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 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 :
• 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.
1.7 Tubing Connections
Flare type interconnecting tubing to be produced on site.
For further details please refer to the Installation Manual, Chapter 10.
1.8 Inbox Documentation
Each unit is supplied with its own installation and operation manuals.
1.9 Matching Table
OUTDOOR UNIT
AWAU-YFF045-H13
INDOOR UNIT
AWSI-FSF045-N13
√

PRODUCT DATA SHEET
2-1
SM FSF045 1-A.0 GB
2. PRODUCT DATA SHEET
2.1 FSF045 / YFF045 R410A
Model Indoor Unit FSF045
Model Outdoor Unit YFF 045
deralFepiPfodohteMnoitallatsnI
gnitaeHgnilooCstinUscitsiretcarahC
Capacity (4) Btu/hr 42310 46400
kW 12.40 13.60
Power input (4) kW 4.94 4.84
EER (Cooling) or COP(Heating) (4) W/W 2.51 2.81
Energy efficiency class
Power supply
V 380-415
Ph 3
Hz 50
5.016.11AtnerrucdetaR
79.079.0rotcafrewoP
W)UDI(detarP
0045W)UDO+UDI(detarP
AtnerrucgnitratS
AgnitarrekaerbtiucriC
INDOOR
1-naflagufirtneCytitnauq&epytnaF
083/024/064/005MPRL/M/HsdeepsnaF
Air flow (1) H/M/L m3/hr 1800/1650/1500/1350
External static pressure Min Pa
Sound power level (2) H/M/L dB(A) 62/60/58/56
Sound pressure level (3) H/M/L dB(A) 52/50/48/46
6rh/llavomererutsioM
81mmD.IebutniardetatsnednoC
593x0781×815mmDxHxWsn
oisnemiD
36gkthgieWteN
Package dimensions WxHxD mm 2080×735×530
98gkthgiewdegakcaP
stinutellaprepstinU
stinuthgiehgnikcatS
OUTDOOR
yrallipaClortnoctnaregirfeR
A83H061PBS-CoynaS,llorcSledom,epytrosserpmoC
2-naflaixAytitnauq&epytnaF
038MPRHsdeepsnaF
0004rh/3mHwolfriA
Sound power level H dB(A) 75
Sound pressure level (3) H dB(A) 65
214x0521x2301mmDxHxWsnoisnemiD
011gkthgieWteN
Package dimensions WxHxD mm 1110x1280x450
121gkthgiewdegakcaP
stinUtellaprepstinU
stinuthgiehgnikcatS
A014RepyttnaregirfeR
5.4)m5(gkStandard charge
m No need/gegrahcla
noitiddA
Connections between
units
Liquid line In.(mm) 1/2"(12.7)
Suction line In.(mm) 3/4"(19.05)
Max.tubing length m. Max. 10
Max.height difference m. Max.5
lortnocetomeRepytlortnocnoitarepO
Wk)noitpO(stnemelegnitaeH
Others
(1)Airflow in ducted units;at nominal external static pressure.
(2)Sound power in ducted units is measured at air discharge.
(3)Sound pressure level measured at 1-meter distance from unit.
(4)Rating conditions in accordance to ISO 5151 and ISO 13253 (for ducted units).

3-1
RATING CONDITIONS
SM FSF045 1-A.0 GB
3. RATING CONDITIONS
Standard conditions in accordance with ISO 5151, ISO 13253 (for ducted units)
and EN 14511.
Cooling:
Indoor: 27oC DB 19oC WB
Outdoor: 35 oC DB
Heating:
Indoor: 20oC DB
Outdoor: 7oC DB 6oC WB
3.1 Operating Limits
R410A
Indoor Outdoor
Cooling Upper limit 32oC DB 23oC WB 43oC DB
Lower limit 21oC DB 15oC WB 18oC DB
Heating Upper limit 27oC DB 24oC DB 18oC WB
Lower limit 10oC DB -7oC DB
Voltage 3PH 360 – 440 V

OUTLINE DIMENSIONS
4-1
SM FSF045 1-A.0 GB
4. OUTLINE DIMENSIONS
4.1 Indoor Unit: FSF045
4.2 Outdoor Unit: YFF045
Model W H D
FSF045 518 1870 395

PERFORMANCE DATA & PRESSURE CURVES
5-1
SM FSF045 1-A.0 GB
TO BE COMPLETED
5. PERFORMANCE DATA
5.1 FSF045
5.1.1 Cooling Mode at 7.5m Tubing Connection.
230V : Indoor Fan at High Speed.
ENTERING AIR
DB OD Coil(oC) Data ENTERING AIR WB/DB ID Coil(oC)
15/21 17/24 19/27 21/29 23/32
15(1)
TC
SC
PI
20(1)
TC
SC
PI
25
TC
SC
PI
30
TC
SC
PI
35
TC
SC
PI
40
TC
SC
PI
46
TC
SC
PI
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
(1) Marked area is below standard operating limits. For operating in low ambient
conditions, Optional Accessories are needed.

PERFORMANCE DATA & PRESSURE CURVES
5-2 SM FSF045 1-A.0 GB
TO BE COMPLETED
5.1.2 Heating Mode at 7.5m Tubing Connection.
230V : Indoor Fan at High Speed.
ENTERING AIR DB ID COIL(Oc)
15 20 25
ENTERING
WB OD COIL(oC) TH Pl TH Pl TH Pl
-10
-7
-2
2
6
10
15
20
LEGEND
TH – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (oC)
DB – Dry Bulb Temp., (oC)
ID – Indoor
OD – Outdoor
5.1.3 Capacity Correction Factor Due to Tubing Length
Cooling
TOTAL TUBING LENGTH
* Minimum recommended tubing length between indoor and outdoor units is 3m.
Heating
TOTAL TUBING LENGTH
* Minimum recommended tubing length between indoor and outdoor units is 3m.

PERFORMANCE DATA & PRESSURE CURVES
5-3
SM FSF045 1-A.0 GB
TO BE COMPLETED
5.4 Pressure Curves: SAF024 / OU7-24 Z R410A
5.4.1 Cooling.

PERFORMANCE DATA & PRESSURE CURVES
5-4 SM FSF045 1-A.0 GB
TO BE COMPLETED
5.4.2 Heating.

6-1
SOUND LEVEL CHARACTERISTICS
SM FSF045 1-A.0 GB
TO BE COMPLETED
6. SOUND LEVEL CHARACTERISTICS
6.1 Sound Pressure Level
6.2 Sound Pressure Level Spectrum (Measured as Figure 1)
FSF045
FAN SPEED LINE
HI
ME
LO
Figure 1

6-2
SOUND LEVEL CHARACTERISTICS
SM FSF045 1-A.0 GB
TO BE COMPLETED
6.3 Outdoor units
6.4 Sound Pressure Level Spectrum (Measured as Figure 2)
YFF045 Cooling YFF045 Heating
1
m
Mic.
Unit
Ground
Figure 2

WIRING DIAGRAMS
7-1
SM FSF045 1-A.0 GB
7. WIRING DIAGRAMS
7.1 Indoor Unit: FSF045
7.2 Outdoor Unit: YFF045

8-1
ELECTRICAL DATA
SM FSF045 1-A.0 GB
8. ELECTRICAL DATA
8.1 FSF045
MODEL
Power Supply Outdoor
3PH-380-415V-50Hz
Fuse(A) 25
Power Supply Wiring No. X
Cross Section mm2 5 x 2.5 mm2
Power Supply Wiring No. X
Cross Section mm2 (To IDU) 3 x 1.0 mm2
Interconnecting Cable Model No.
X Cross Section mm25x1.0mm2 + 4x1.0mm2
Note:
Power wiring cord should comply with local laws and electrical regulations requirementsl.

REFRIGERATION DIAGRAMS
9-1
SM FSF045 1-A.0 GB
9. REFRIGERATION DIAGRAMS
9.1 FSF045 / YFF045
9.1.1 Cooling Mode
9.1.2 Heating Mode

10-1
TUBING CONNECTIONS
SM FSF045 1-A.0 GB
10. TUBING CONNECTIONS
TUBE (Inch)
TORQUE (Nm)
¼” ⅜”½”⅝”¾”
Flare Nuts 11-13 40-45 60-65 70-75 80-85
Valve Cap 13-20 13-20 18-25 18-25 40-50
Service Port Cap 11-13 11-13 11-13 11-13 11-13
1. Valve Protection Cap-end
2. Refrigerant Valve Port (use Allen wrench to open/close)
3. Valve Protection Cap
4. Refrigerant Valve
5. Service Port Cap
6. Flare Nut
7. Unit Back Side
8. Copper Tube
When the outdoor unit is installed above the indoor unit an oil trap is required every 5m along
the suction line at the lowest point of the riser. Incase the indoor unit is installed above the
outdoor, no trap is required.

CONTROL SYSTEM
11-1
SM FSF045 1-A.0 GB
11. CONTROL SYSTEM
11.1 Fan Mode
In this mode, the indoor fan may run at high,medium,low and automatic speed. The compressor,
outdoor fan and 4-way valve will be OFF.
In this mode, the range of setting temperature is 16oC~30oC.
Auto Fan setting
In AutoFan user setting, fan speed will be adjusted automatically according to the difference between
actual room temperature (RAT) and user set point temperature (SPT).
Indoor Fan speed High Medium Low
RAT-SPT Cooling >=2 (0,2) <=0
Heating <=0 (1,3] >3
11.2 Cool Mode
When RT.≥SPT+1℃, the unit will run in cooling mode. Meanwhile, compressor, outdoor fan will start
running, and indoor will run at setting fan speed;
When RT≦SPT-1℃, the unit is at OFF status in cooling mode. Meanwhile, compressor, outdoor fan
will all stop running, while indoor fan will run at setting fan speed;
When SPT-1℃<RT<SPT+1℃, the unit will keep previous running status.
In this mode, the temperature setting range is 16℃~30℃and the initial value is 25℃. The indoor fan
will run according to the setting, if AutoFan is set, fan speed will be adjusted automatically according
to the SPT and RAT, rerfer to Sec 12.1
11.3 Heat Mode
When RT≦SPT-1℃, the unit will run in heating mode. Meanwhile, compressor and outdoor fan will
start running. Indoor fan maybe start running after delayed for a period of time to prevent blowing out
cold air. The RV will be ON after compressor was ON for 20s.
When RT≥SPT+1℃, compressor and outdoor fan will stop running. The RV is ON and indoor fan will
stop running after running at low fan speed for 10s.
When SPT-1℃<RT<SPT+1℃, the unit will keep original running status.
In this mode, the SPT range is 16℃~30℃and the initial value is 25℃. When tuning off the unit
in heating mode or switching to other modes from heating mode, the RV will be OFF after 2mins
delayed.
Residual heat blowing function
During heating, when the stopping condition for the compressor is reached, the compressor and the
outdoor fan motor stop running. The indoor fan will stop after running for 10s at low speed
11.4 Auto Cool/Heat Mode
In AUTO mode, the system selects the running mode (COOL/HEAT/FAN) automatically according to
the room temperature. The display shows the actual running mode and setting temperature. There
will be 30s delay for mode conversion.
1. When RAT≥26 degree, the cooling mode is selected.
2. When RAT≤20 degree, the unit runs in heating mode
3. When 20 degree <RAT< 26 degree, upon initial startup, the unit will enter auto mode and run
in automatic fan mode. If the other mode changes into auto mode, the previous running mode will
remain.

CONTROL SYSTEM
11-2 SM FSF045 1-A.0 GB
11.5 Dry Mode
When RT>SPT+2℃, the unit will run in cooling mode. Meanwhile, compressor and outdoor fan will
start running, and indoor fan will run at low fan speed;
When SPT-2≦RT≦SPT+2℃, compressor and outdoor fan will run for 6mins and then stop for 4 mins,
and they will run like that circularly. Indoor fan will run at low fan speed;
When RT<SPT-2℃, compressor and outdoor fan will stop running, while indoor fan will run at low
fan speed.
In this mode, the temperature setting range is 16℃~30℃and the initial value is 25℃
11.6 Refrigerant Recovery mode
• Power on the unit,
• Set the A/C at FAN mode, low fan speed by remote controller and the indoor temperature is
set as 20℃;
• Press the light button on remote controller for twice continuously within 5s; The compressor
will be on to recovery the refrigerant.
After compressor has run for 3mins, please close the cut-off valve completely.
Notice: 1. After refrigerant is recovered, if the recovery operation should be operated again, please
power off at first and then power off again.
2. the low pressure switch can’t be short circuited.
3. When the protector for low pressure switch has an action, compressor and outdoor unit will stop
running automatically. Please close the cut-off valve immediately.
11.7 Turbo mode
Press TURBO button in cooling/heating mode, the unit will operate Turbo Mode.
Under this mode, IFAN will operate at super High speed.
Either pressing TURBO button again or selecting other fan speed can cancel the Turbo Mode.
Turbo Mode does not exist in Auto Mode, Dry Mode and Fan Mode.
11.8 Protections
11.8.1 Indoor Coil Defrost Protection
IDU freezing protection is functioned by the ICT to prevent the IU exchanger from freezing in cooling
mode.
Compressor will stop when ICT <= -2 ℃for continuous 3 mins.
The unit will not restart until ICT ≥10℃and the compressor is OFF for 6 minutes.
11.8..2 High Pressure Protection of Compressor by high pressur switch
When high pressure protection is detected for 3 seconds continuously, the high pressure switch is
4.2Mpa, the unit will stop and report the fault, it can not resume running automatically and display
malfunction, it can resume by pressing ON/OFF.