Daikin FXDQ20M9 Instruction manual

Air Conditioning
Technical Data
Small concealed ceiling unit
EEDEN12-204
FXDQ-M9

• VRV Systems • Indoor Unit 1
• Indoor Unit • Small concealed ceiling unit • FXDQ-M9
TABLE OF CONTENTS
FXDQ-M9
1Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3 Safety device settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety Device Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Capacity tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Cooling Capacity Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Heating Capacity Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6 Dimensional drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7 Piping diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Piping Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8 Wiring diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Wiring Diagrams - Single Phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
9 Sound data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Sound Level Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Sound Pressure Spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

• Indoor Unit • Small concealed ceiling unit • FXDQ-M9
1
1
• VRV Systems • Indoor Unit
2
1 Features
IndoorUnit VRV
®
Systems FXDQ-M9Smallconce • Designed for hotel bedrooms
• Compact dimensions (230mm high & 652mm deep), can easily be
mounted in a ceiling void
• Blends unobtrusively with any interior décor: only the suction and
discharge grilles are visible
• Standard air filter removes airborne dust particles to ensure a steady
supply of clean air
• The air suction direction can be altered from rear to bottom suction
• For easy mounting, the drain pan can be located to the left or right of
the unit
• Allows multi tenant applications (option PCB required)
2 steps optional

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• VRV Systems • Indoor Unit 3
• Indoor Unit • Small concealed ceiling unit • FXDQ-M9
2 Specifications
2-1 Technical Specifications FXDQ20M9 FXDQ25M9
Cooling capacity Nom. kW 2.2 (1) 2.8 (1)
Heating capacity Nom. kW 2.5 (2) 3.2 (2)
Power input - 50Hz Cooling Nom. kW 0.050 (1)
Heating Nom. kW 0.050 (2)
Casing Colour Unpainted
Material Galvanised steel
Dimensions Unit Height mm 230
Width mm 502
Depth mm 652
Packed unit Height mm 301
Width mm 584
Depth mm 753
Required ceiling void \> mm 250
Weight Unit kg 17
Packed unit kg 18
Heat exchanger Length mm 430
Rows Quantity 2
Fin pitch mm 1.4
Passes Quantity 2
Face area m² 0.108
Stages Quantity 12
Empty tubeplate
hole
Quantity 4 0
Tube type ø7 Hi-XSS
Fin Type Symmetric waffle louvre
Treatment Hydrophilic
Fan Type Sirocco fan
Quantity 1
Air flow rate - 50Hz Cooling High m³/min 6.7 7.4
Low m³/min 5.2 5.8
Heating High m³/min 6.7 7.4
Low m³/min 5.2 5.8
Fan motor Quantity 1
Model Step motor
Speed Steps 3
Output High W 10
Drive Direct drive
Sound power level Cooling Nom. dBA 50
Sound pressure level Cooling High dBA 37
Low dBA 32
Heating High dBA 37
Low dBA 32
Refrigerant Type R-410A
Control Electronic expansion valve
Piping connections Liquid Type Flare connection
OD mm 6.35
Gas Type Flare connection
OD mm 12.7
Drain I.D. 21.6, O.D. 27.2
Temperature control Microprocessor thermostat for cooling and heating
Air direction control Up and downwards
Safety devices Item 01 PC board fuse
02 Fan motor thermal protection
2-2 Electrical Specifications FXDQ20M9 FXDQ25M9
Power supply Name V1
Phase 1~
Frequency Hz 50
Voltage V 230

• Indoor Unit • Small concealed ceiling unit • FXDQ-M9
1
2
• VRV Systems • Indoor Unit
4
2 Specifications
Notes
(1) Cooling: indoor temp. 27ºCDB, 19ºCWB; outdoor temp. 35ºCDB; equivalent piping length: 8m; level difference: 0m
(2) Heating: indoor temp. 20ºCDB; outdoor temp. 7ºCDB, 6ºCWB; equivalent refrigerant piping: 8m; level difference: 0m
(3) Capacities are net, including a deduction for cooling (an addition for heating) for indoor fan motor heat.
(4) Voltage range: units are suitable for use on electrical systems where voltage supplied to unit terminal is not below or above listed range limits.
(5) Maximum allowable voltage range variation between phases is 2%.
(6) MCA/MFA: MCA = 1.25 x FLA
(7) MFA \< 4 x FLA
(8) Next lower standard fuse rating minimum 16A
(9) Select wire size based on the value of MCA
(10) Instead of a fuse, use a circuit breaker
Voltage range Min. % -10
Max. % 10
Current - 50Hz Zmax List No requirements
Minimum circuit amps (MCA) A 0.2
Maximum fuse amps (MFA) A 16
Full load amps
(FLA)
Total A 0.1
2-2 Electrical Specifications FXDQ20M9 FXDQ25M9

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• VRV Systems • Indoor Unit 5
• Indoor Unit • Small concealed ceiling unit • FXDQ-M9
3 Safety device settings
3 - 1 Safety Device Settings
3TW25511-3
FXDQ20M9 FXDQ25M9
FAN MOTOR THERMAL PROTECTOR °COFF:135
±8, (ON:87±15)
PC BOARD FUSE 250V 10A

• Indoor Unit • Small concealed ceiling unit • FXDQ-M9
1
4
• VRV Systems • Indoor Unit
6
4 Options
4 - 1 Options
FXDQ20-25M9
Options
Operation Control
*1 Fixing box is KRP1A90
*2 All options are supplied as kit.
*3 This kit contains parts to connect with 10 multi tenant indoor units.
*4 Included languages are: English, German, French, Dutch, Spanish, Italian, Greek, Portuguese, Russian and Turkish.
Contents of accessory bags
3TW31579-1A
Nr. Item Type FXDQ20,25
1 Wiring adapter (Hour meter) EKRP1B2 *1
Nr. Item Type FXDQ20,25
1 Remote Wired type BRC1D52 / BRC1E51A *4
Wireless type H/P BRC4C62
C/O BRC4C64
2 Simplified remote control BRC2A51
3 Remote control for hotel use BRC3A61
4 Adapter for wiring KRP1B61
5.1 Wiring adapter for electrical appendices (1) KRP2A51
5.2 Wiring adapter for electrical appendices (2) KRP4A51
6 Remote sensor KRCS01-1
7 Installation box for adapter PCB ---
8 Central remote control DCS302C51
8.1 Electrical box with earth terminal (3 blocks) KJB311A
9 Unified ON/OFF controller DCS301B51
9.1 Electrical box with earth terminal (2 blocks) KJB212A
9.2 Noise filter ( For electromagnetic interface use only) KEK26-1A
10 Schedule timer DST301B51
11 External adapter for outdoor unit (installation on indoor unit) DTA104A61
11 Multi Tenant option EKMTAC *3
Description Quantity
Installation and operation manual 1
Glass tube fuse 10A 1
Service instruction label 1

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5
• VRV Systems • Indoor Unit 7
• Indoor Unit • Small concealed ceiling unit • FXDQ-M9
5 Capacity tables
5 - 1 Cooling Capacity Tables
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• Indoor Unit • Small concealed ceiling unit • FXDQ-M9
1
5
• VRV Systems • Indoor Unit
8
5 Capacity tables
5 - 2 Heating Capacity Tables
FXDQ-M9
3TW25512-2
Unit Size Nominal capacity
Outdoor
air temperature
Indoor air temperature °CDB
16.0 18.0 20.0 21.0 22.0 24.0
°CDB °CWBkWkWkWkWkWkW
20 2.5 -19.8 -20.0 1.5 1.5 1.5 1.5 1.5 1.5
-18.8 -19.0 1.5 1.5 1.5 1.5 1.5 1.5
-16.7 -17.0 1.6 1.6 1.6 1.6 1.6 1.6
-14.7 -15.0 1.7 1.7 1.7 1.7 1.7 1.7
-12.6 -13.0 1.8 1.8 1.8 1.8 1.8 1.8
-10.5 -11.0 1.9 1.9 1.9 1.9 1.9 1.9
-9.5 -10.0 1.9 1.9 1.9 1.9 1.9 1.9
-8.5 -9.1 2.0 2.0 1.9 1.9 1.9 1.9
-7.0 -7.6 2.0 2.0 2.0 2.0 2.0 2.0
-5.0 -5.6 2.1 2.1 2.1 2.1 2.1 2.1
-3.0 -3.7 2.2 2.2 2.2 2.2 2.2 2.2
0.0 -0.7 2.3 2.3 2.3 2.3 2.3 2.2
3.0 2.2 2.5 2.5 2.4 2.4 2.3 2.2
5.0 4.1 2.5 2.5 2.5 2.4 2.3 2.2
7.0 6.0 2.6 2.6 2.5 2.4 2.3 2.2
9.0 7.9 2.7 2.7 2.5 2.4 2.3 2.2
11.0 9.8 2.8 2.7 2.5 2.4 2.3 2.2
13.0 11.8 2.8 2.7 2.5 2.4 2.3 2.2
15.0 13.7 2.8 2.7 2.5 2.4 2.3 2.2
25 3.2 -19.8 -20.0 1.9 1.9 1.9 1.9 1.9 1.9
-18.8 -19.0 1.9 1.9 1.9 1.9 1.9 1.9
-16.7 -17.0 2.1 2.1 2.0 2.0 2.0 2.0
-14.7 -15.0 2.2 2.2 2.2 2.2 2.2 2.1
-12.6 -13.0 2.3 2.3 2.3 2.3 2.3 2.3
-10.5 -11.0 2.4 2.4 2.4 2.4 2.4 2.4
-9.5 -10.0 2.5 2.4 2.4 2.4 2.4 2.4
-8.5 -9.1 2.5 2.5 2.5 2.5 2.5 2.5
-7.0 -7.6 2.6 2.6 2.6 2.6 2.6 2.6
-5.0 -5.6 2.7 2.7 2.7 2.7 2.7 2.7
-3.0 -3.7 2.8 2.8 2.8 2.8 2.8 2.8
0.0 -0.7 3.0 3.0 3.0 3.0 3.0 2.8
3.0 2.2 3.1 3.1 3.1 3.1 3.0 2.8
5.0 4.1 3.3 3.2 3.2 3.1 3.0 2.8
7.0 6.0 3.4 3.4 3.2 3.1 3.0 2.8
9.0 7.9 3.5 3.4 3.2 3.1 3.0 2.8
11.0 9.8 3.6 3.4 3.2 3.1 3.0 2.8
13.0 11.8 3.6 3.4 3.2 3.1 3.0
15.0 13.7 3.6 3.4 3.2 3.1 3.0 2.8
B
2.6

3
1
6
• VRV Systems • Indoor Unit 9
• Indoor Unit • Small concealed ceiling unit • FXDQ-M9
6 Dimensional drawings
6 - 1 Dimensional Drawings
FXDQ-M9
3TW25774-1
(Suspension position)
250 or more
(Suspension position)
300 or more
Nr Part name
1 Liquid pipe connection (ø 6.35)
2 Gas pipe connection (ø 12.7)
3 Drain hole (o.d. ø 27.2 - i.d. ø 21.6)
4 Transmission wiring port
5 Power supply wiring port
6 Service space
7 Switch box
8Nameplate

• Indoor Unit • Small concealed ceiling unit • FXDQ-M9
1
7
• VRV Systems • Indoor Unit
10
7 Piping diagrams
7 - 1 Piping Diagrams
FXDQ-M9
3TW21175-1C
Heat exchanger
Fan
Filter Filter
Electronic expansion valve
Liquid pipe connection port
Gas pipe connection port
Refrigerant flow
Cooling
Heating
Piping connection diameters
Model Gas Liquid
FXDQ20,25M9 ø12.7 ø6.4

3
1
8
• VRV Systems • Indoor Unit 11
• Indoor Unit • Small concealed ceiling unit • FXDQ-M9
8 Wiring diagrams
8 - 1 Wiring Diagrams - Single Phase
FXDQ-M9
2TW23666-1E
indoor
Terminals
for operation
indicator
Compressor
operation
Fan
operation
Wiring adapters
Switch box
Switch box cover
Note 4 input
from outside
Centralised remote
control note 2
Wired
remote
control
NOTES
1 Use copper conductors only.
2 When using a centralised remote control, see manual for connection to the unit.
3 When installing the electric heater change the wiring for the heater circuit. The main power supply has to be supplied independently.
4 When connecting the input wires from the outdoor unit 'forced off' or 'on/off' operation can be selected by the remote control. For more details see installation manual.
A1P Printed circuit board RyF1-3 Magnetic relay (Fan) RyC, RyF Magnetic relay
C1R Capacitor (Fan) T1R Transformer (220-240V/22V) RyH Magnetic relay (J1EH)
F1U Fuse (250V, 10A) X1M Terminal strip (Power) F1U, F2U Fuse (250V, 5A)
F2U Field fuse X2M Terminal strip (Control) X1A, X2A Connector (Wiring adapter)
HAP Light emitting diode (Service monitor-green) Y1E Electronic expansion valve X1M Terminal strip
M1F Motor (Fan) Optional parts Connector for optional parts
Q1E Earth leak detector J1EH Electric heater X16A Connector (Wiring adapter)
R1T Thermistor (Air) K1R Magnetic relay (J1EH) X18A Connector (Wiring adapter for electronical appendices)
R2T, R3T Thermistor (Refrigerant) Wiring adapter
: Field wiring COLORS : BLK : Black PNK : Pink
BLU : Blue RED : Red
BRN: Brown WHT : White
ORG : Orange YLW : Yellow
: Live
: Neutral
: Connector
: Wire clamp
: Protective earth (screw)
L
N

• Indoor Unit • Small concealed ceiling unit • FXDQ-M9
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9
• VRV Systems • Indoor Unit
12
9 Sound data
9 - 1 Sound Level Data
FXDQ-M9
NOTES
1 dBA = A-weighted sound pressure level (A-scale according to IEC).
2 Reference acoustic pressure 0 dB = 20 Pa.
3 These operating values were obtained using a power source of 230V/50Hz.
4 These operating values were obtained in a dead room (conversion values). Noise values will vary depending on a range of factors such as the
construction of the particular room in which the equipment is installed.
5 Operating noise differs with operation and ambient conditions.
Model Sound pressure level - 230V Sound power level
H L Measuring location
FXDQ20M9 37 32 50
FXDQ25M9 37 32 50
Suction Unit Duct Discharge
Microphone
Location of microphone

3
1
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• VRV Systems • Indoor Unit 13
• Indoor Unit • Small concealed ceiling unit • FXDQ-M9
9 Sound data
9 - 2 Sound Pressure Spectrum
FXDQ20M9 3TW21467-1
Octave band frequency (Hz)
Sound pressure level (dB)
FXDQ25M9 3TW21477-1
Octave band frequency (Hz)
Sound pressure level (dB)

Daikin’s unique position as a manufacturer of air
conditioning equipment, compressors and refriger-
ants has led to its close involvement in environmen-
tal issues. For several years Daikin has had the
intention to become a leader in the provision of
products that have limited impact on the environ-
ment. This challenge demands the eco design and
development of a wide range of products and an en-
ergy management system, resulting in energy con-
servation and a reduction of waste.
Daikin Europe N.V. participates in the Eu-
rovent Certification programme for Air con-
ditioners (AC), Liquid Chilling Packages
(LCP) and Fan coil units (FCU), Check on-
going validity of certificate online: www.eu-
rovent-certification.com or using:
www.certiflash.com”
EEDEN12-204 • 07/12 • Copyright Daikin The present publication supersedes EEDEN11-204
The present leaflet is drawn up by way of information only and does not
constitute an offer binding upon Daikin Europe N.V.. Daikin Europe N.V.
has compiled the content of this leaflet to the best of its knowledge. No
express or implied warranty is given for the completeness, accuracy, re-
liability or fitness for particular purpose of its content and the products
and services presented therein. Specifications are subject to change
without prior notice. Daikin Europe N.V. explicitly rejects any liability for
any direct or indirect damage, in the broadest sense, arising from or re-
lated to the use and/or interpretation of this leaflet. All content is copy-
righted by Daikin Europe N.V.
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