Fujitsu ARGA18FMTA Service manual

DESIGN & TECHNICAL MANUAL
INDOOR
OUTDOOR
AOGA25FBTAHAOGA18FBTAH
ARGA18FMTA
ARGA25FMTA
AIR CONDITIONER
Duct type

1. INDOOR UNIT
DTR_AR087E_02
2015.02.05
DUCT TYPE:
ARGA18FMTA
ARGA25FMTA

DUCT TYPE ARGA18-25FMTA DUCT TYPE ARGA18-25FMTA
CONTENTS
1. INDOOR UNIT
1. FEATURES.............................................................................................................. 01 - 01
2. WIRED REMOTE CONTROLLER......................................................... 01 - 03
3. SPECIFICATIONS.............................................................................................. 01 - 05
4. DIMENSIONS........................................................................................................ 01 - 06
5. WIRING DIAGRAMS........................................................................................ 01 - 08
6. CAPACITY TABLE............................................................................................ 01 - 10
6-1. COOLING CAPACITY...................................................................................... 01 - 10
7. FAN PERFORMANCE AND CAPACITY...........................................01 - 11
7-1. NORMAL MODE................................................................................................01 - 11
7-2. STATIC PRESSURE MODE 1......................................................................... 01 - 13
7-3. STATIC PRESSURE MODE 2......................................................................... 01 - 15
7-4. STATIC PRESSURE MODE 3......................................................................... 01 - 17
8. OPERATION NOISE (SOUND PRESSURE)................................. 01 - 19
8-1. NOISE LEVEL CURVE .................................................................................... 01 - 19
8-2. SOUND LEVEL CHECK POINT..................................................................... 01 - 20
9. SAFETY DEVICES............................................................................................01 - 21
10. EXTERNAL INPUT & OUTPUT............................................................... 01 - 22
10-1. EXTERNAL INPUT........................................................................................... 01 - 22
10-2. EXTERNAL OUTPUT....................................................................................... 01 - 23
11. FUNCTION SETTINGS.................................................................................. 01 - 25
11-1. INDOOR UNIT...................................................................................................01 - 25
11-2. INDOOR UNIT (Setting by remote controller)........................................... 01 - 26
11-3. WIRED REMOTE CONTROLLER.................................................................. 01 - 29
12. OPTIONAL PARTS........................................................................................... 01 - 31

- (01 - 01) -
DUCT TYPE ARGA18-25FMTA DUCT TYPE ARGA18-25FMTA
FEATURES1.MODELS

ARGA18FMTA / AOGA18FBTAH
ARGA25FMTA / AOGA25FBTAH
FEATURES

Installation styles
z
Slim & compact design
z
In the case of rear suction type, as seen from lower rear part.
Control Box united with main unit
One-touch operating and easy-to-install
long-life lter (optional)
In addition to the slim height of 270 mm, further compactication is attained by reducing 65 mm
from the width with the anking control box embedded inside the chassis.
Easy maintenance
z
The fan and motor is easily accessible by the divided panel structure.
Structural improvement is attained by making the
bottom panel in two pieces, front and rear.
The internal fan casing is also manufactured in two
pieces, namely upper and lower. The maintenance
of the motor and fan can be easily carried out by
removing the rear panel and the lower part of the
casing while leaving the main chassis installed.
1
3
Bottom panel: 2 units
2
4
1. Control box
2. Fan casing
3. Fan
4. Motor
Embedded in Ceiling Hanging from Ceiling
AOGA25FBTAH
AOGA18FBTAH

- (01 - 02) -
DUCT TYPE ARGA18-25FMTA DUCT TYPE ARGA18-25FMTA
Quiet operation
z
Quiet operation at 25 dB (A) is possible in quiet mode.
Economy operation
z
The power consumption can be reduced.
Operation in high ambient temp
z
The operation is secured under the ambient temperature of up to 52 degrees celsius.
Cooling
21 to 52°C

- (01 - 03) -
DUCT TYPE ARGA18-25FMTA DUCT TYPE ARGA18-25FMTA
WIRED REMOTE CONTROLLER2.
FEATURES

Various timer setup (ON / OFF / WEEKLY) are possible.

•
Equipped with weekly timer as standard function.(Start/Stop function is

•
twice per day for a week)
When setting up the timer, start/stop and a temperature setup can be

•changed.
When a failure occurs, the error code is displayed.

•
Error history.(Last 16 error codes can be accessed.)

•
Up to 16 indoor units can be simultaneously controlled.

•
The room temperature can be controlled by being detective the

•temperature accurately with Built-in thermo sensor.
Simple function setting
z
Setting of the air conditioner selection function is performed by remote controller.
High performance and compact size
z
Built-in timers
Weekly timer Setback timer
At "Weekly timer" + "Set back timer" setup
Easy-to-understand operation
z
[Variable timer control]
The operation/display sections are zoned
according to time and operation, enabling
variable programming to match application.
Simple installation
z
Components are compatible with standard
switch boxes. Flat back construction allows
equipment to be installed wherever it is
needed.
European
switch box
JIS box
SU MO TU WE TH FR SA
7
3 12 6 9 15 18 21
SU MO TU WE TH FR SA
7
3 12 6 9 15 18 21
SU MO TU WE TH FR SA
3 12 6 9 15 18 21
Possible to set ON/OFF time to operate twice each day
of the week.
Setup screen example
(Set to Wednesday: 8:00 to 20:00.) Screen after setup
Setup screen example
(Set from Sunday to Saturday: 12:00 to 15:00, 28 °C.)
Possible to set temperature for two time spans and
for each day of the week.
Easy-to-understand time bar indicator
24°C
036912 15 18 21 Time
28°C
036912 15 18 21 Time
28°C
24°C
036912 15 18 21 Time
24°C 28°C 24°C
Timer
area Operation area

- (01 - 04) -
DUCT TYPE ARGA18-25FMTA DUCT TYPE ARGA18-25FMTA
FUNCTIONS

Display panel
DIMENSION

SPECIFICATION

SIZE (H x W x D mm) 120 x 120 x 18
WEIGHT ( g ) 160
CABLE LENGTH ( m ) 10
POWER ( V ) 12
WIRING SPECIFICATIONS

Use Size Wire type Remarks
Remote controller cable 0.33 mm2
(22 AWG) Polar 3 core Use sheathed
PVC cable
15
11
10
9
8
21
3
5
14
4
12
13
6
7
17
16 18
19 20
21
120
120
120
18
Side ViewFront View
1START/STOP button
Pressed to start and stop operation.
2SET TEMP. button
Selects the setting temperature.
3MODE button
Selects the operating mode (AUTO , COOL , DRY , FAN ).
4FAN button
Selects the fan speed (AUTO , HIGH , MED , LOW ,
QUIET ).
5ECONOMY button
Turns the economy efcient mode on and off.
6TIMER MODE (CLOCK ADJUST) button
Selects the timer mode (OFF TIMER, ON TIMER, WEEKLY
TIMER). Set the current time.
7DAY (DAY OFF) button
Temporarily cancels of one day timer.
8SET BACK button
Pressed to select the set back timer.
9Set time button
Pressed to set time.
10 TIMER DELETE button
The schedule of a weekly timer is deleted.
11 TIMER SET button
Sets the date, hour, minute and on-off time.
12  Verticalairowdirectionandswingbutton
Push for two seconds to change the swing mode.
13  Horizontalairowdirectionandswingbutton
Push for two seconds to change the swing mode.
14 FILTER RESET button
15 Operation lamp
Lights during operation and when the timer is on.
16 Timer and clock indicator
17 Operation mode indicator
18 Fan speed indicator
19 Operation lock indicator
20 Temperature indicator
21 Function indicator
Defrost indicator
Thermo sensor indicator
Economy indicator
Vertical swing indicator
Horizontal swing indicator
Filter indicator
NOTE: Functions will be different due to type of indoor unit.
For details please see operation manual.
[ Unit: mm ]

- (01 - 05) -
DUCT TYPE ARGA18-25FMTA DUCT TYPE ARGA18-25FMTA
SPECIFICATIONS3.SPECIFICATIONS3.
NOTES :
Specications are based on the following conditions:

•
Cooling (T1) : Indoor temperature of 27 °CDB / 19 °CWB, and outdoor temperature of 35 °CDB / 24 °CWB.
Standard static pressure : 35 Pa
Pipe length : 7.5 m, Height difference : 0 m. (Outdoor unit–Indoor unit)
The protective function might work when using it in environment out of the temperature range mentioned above.

•
Drain hose should be locally purchased.

•
*1: The maximum current is the maximum value when operated within the operation range.
*2: These are the measured values in the manufacturer’s anechoic chamber.
Because of the surrounding sound environment, the sound levels measured in actual installation conditions might be higher than the specied values here.
Type DUCTED MODEL
COOLING ONLY
Model name ARGA18FMTA ARGA25FMTA
Power source 220 / 240 V ~ 50 Hz
Available voltage range 198 to 264 V
COOLING (T1 condition)
Capacity kW 5.20 / 5.20 6.45 / 6.45
Btu/h 17,800 / 17,800 22,000 / 22,000
Input power kW 1.51 / 1.53 1.88 / 1.91
Current A 7.0 / 6.5 8.8 / 8.5
EER Btu/hW 11.79 / 11.63 11.70 / 11.52
Sensible capacity kW 4.10 / 4.10 5.08 / 5.08
Power factor % 98.1 / 98.1 97.1 / 93.6
Moisture removal l/h
(pints/h) 1.6 (2.8) 1.9 (3.3)
Maximum operating current *1 Cooling A13.5 16.7
Fan
Airow
rate Cooling
High
m3/h
1,050 1,200
Med 860 960
Low 740 820
Quiet 670 750
Type × Q'ty Sirocco × 2
Motor output W 106
Recommended static pressure Pa 30 to 150
Sound pressure level *2 Cooling
High
dB(A)
29 31
Med 27 29
Low 26 27
Quiet 25 25
Heat exchanger type
Dimensions (H × W × D) mm 294 × 1000 × 39.9
Fin pitch 1.4
Rows x Stages 3 × 14
Pipe type Copper
Fin type Aluminium
Enclosure Material Steel
Colour -
Dimensions
( H×W ×D ) Net mm 270 × 1,135 × 700
Gross 300 × 1,320 × 790
Weight Net kg 38
Gross 45
Connection pipe Size Liquid mm Ø 6.35 (Ø 1/4 in.) Gas Ø 15.88 (Ø 5/8 in.)
Method Flare
Operation range Cooling °C 18 to 32
%RH 80 or less
Remote controller type Wired
Drain port Material Steel
Size mm Ø 36.0 (I.D.), Ø 38.0 (O.D.)

- (01 - 06) -
DUCT TYPE ARGA18-25FMTA DUCT TYPE ARGA18-25FMTA
DIMENSIONS4.
MODEL
 : ARGA18FMTA, ARGA25FMTA (Unit: mm)
 Refrigerant piping are connection (Gas)
 Refrigerant piping are connection (Liquid)
Drain piping connection
Drain piping connection with cap.
 Knock out hole for fresh air.
Front view
Top view
Side view (L) Side view (R)
Rear view

- (01 - 07) -
DUCT TYPE ARGA18-25FMTA DUCT TYPE ARGA18-25FMTA
INSTALLATION PLACE

(Unit: mm)
MAINTENANCE HOLE

WHEN USING A SQUARE DUCT

BOTTOM AIR INTAKE HOLE

It shall be possible to install and remove the
control box.
It shall be possible to install and remove the
control box, fan units and lter.

- (01 - 08) -
DUCT TYPE ARGA18-25FMTA DUCT TYPE ARGA18-25FMTA
WIRING DIAGRAMS5.
MODEL
 : ARGA18FMTA

- (01 - 09) -
DUCT TYPE ARGA18-25FMTA DUCT TYPE ARGA18-25FMTA
MODEL
 : ARGA25FMTA

- (01 - 10) -
DUCT TYPE ARGA18-25FMTA DUCT TYPE ARGA18-25FMTA
CAPACITY TABLE6. COOLING CAPACITY6-1.
This table is created using the maximum capacity.
MODEL
 : ARGA18FMTA
MODEL
 : ARGA25FMTA
AFR : Airow Rate (m3/min)
TC : Total Capacity (kW)
SHC : Sensible Heat Capacity (kW)
IP : Input Power (kW)
AFR 17.5
Indoor temperature
°CDB 18 21 23 25 27 29 32
°CWB 12 15 16 18 19 21 23
Outdoor temperature
°CDB TC SHC IP TC SHC IP TC SHC IP TC SHC IP TC SHC IP TC SHC IP TC SHC IP
21 4.48 3.84 1.15 4.99 3.86 1.17 5.16 4.20 1.17 5.50 4.21 1.19 5.67 4.54 1.19 6.01 4.53 1.21 6.35 4.82 1.21
25 4.45 3.79 1.24 4.95 3.81 1.27 5.12 4.14 1.27 5.45 4.16 1.29 5.62 4.49 1.29 5.96 4.47 1.31 6.29 4.76 1.32
30 4.32 3.67 1.37 4.82 3.69 1.39 4.98 4.01 1.39 5.30 4.03 1.41 5.47 4.35 1.42 5.80 4.33 1.43 6.12 4.62 1.44
35 4.11 3.46 1.47 4.58 3.48 1.50 4.73 3.78 1.51 5.04 3.80 1.52 5.20 4.10 1.53 5.51 4.08 1.54 5.82 4.35 1.56
40 3.89 3.26 1.98 4.33 3.28 2.01 4.48 3.56 2.02 4.78 3.58 2.04 4.93 3.86 2.05 5.22 3.84 2.07 5.52 4.10 2.09
45 3.57 3.09 2.11 3.98 3.11 2.15 4.12 3.38 2.15 4.39 3.39 2.18 4.59 3.66 2.19 4.79 3.65 2.21 5.07 3.88 2.23
52 3.06 2.86 2.33 3.41 2.87 2.37 3.52 3.13 2.38 3.76 3.13 2.40 3.87 3.39 2.42 4.11 3.37 2.44 4.34 3.59 2.46
AFR 20.0
Indoor temperature
°CDB 18 21 23 25 27 29 32
°CWB 12 15 16 18 19 21 23
Outdoor temperature
°CDB TC SHC IP TC SHC IP TC SHC IP TC SHC IP TC SHC IP TC SHC IP TC SHC IP
21 5.55 4.76 1.43 6.18 4.78 1.46 6.39 5.20 1.47 6.82 5.22 1.48 7.03 5.63 1.49 7.45 5.61 1.50 7.87 5.98 1.51
25 5.51 4.70 1.55 6.14 4.73 1.58 6.35 5.13 1.59 6.76 5.15 1.61 6.97 5.56 1.61 7.40 5.54 1.63 7.81 5.90 1.64
30 5.36 4.55 1.71 5.97 4.58 1.73 6.17 4.97 1.74 6.58 4.99 1.76 6.78 5.39 1.77 7.19 5.37 1.79 7.60 5.72 1.80
35 5.09 4.29 1.84 5.68 4.31 1.87 5.87 4.69 1.88 6.26 4.71 1.90 6.45 5.08 1.91 6.84 5.06 1.93 7.22 5.40 1.95
40 4.83 4.04 2.47 5.37 4.06 2.51 5.56 4.41 2.52 5.93 4.43 2.55 6.11 4.78 2.56 6.48 4.76 2.59 6.85 5.08 2.61
45 4.43 3.82 2.64 4.94 3.85 2.68 5.11 4.19 2.69 5.45 4.20 2.72 5.69 4.53 2.73 5.94 4.52 2.76 6.29 4.81 2.79
52 3.80 3.54 2.91 4.23 3.56 2.96 4.37 3.87 2.97 4.66 3.88 3.00 4.80 4.20 3.02 5.10 4.18 3.05 5.38 4.45 3.08

- (01 - 11) -
DUCT TYPE ARGA18-25FMTA DUCT TYPE ARGA18-25FMTA
FAN PERFORMANCE AND CAPACITY7. NORMAL MODE7-1.
MODEL
 : ARGA18FMTA
Static pressure (Pa)
13 16 20 22 25 28 30 34 35 38
FAN SPEED
Hi m3/h - - - - - 1150 1120 1070 1050 950
l/s ----- 319 311 297 292 264
CFM -----677 659 630 618 559
Med m3/h - - - 860 795 - - - - -
l/s ---239 221 -----
CFM ---506 468 -----
Low m3/h - 820 740 690 - - - - - -
l/s -228 206 192 ------
CFM -483 436 406 ------
Quiet m3/h 740 600--------
l/s 206 167 --------
CFM 436 353 --------
Hi
Med
Low
Quiet
Q-h Characteristic curve
Static pressure (Pa)
50
40
30
20
10
0
500 600 700 800 900 1,000 1,100 1,200 1,300
Airow (m3/h)
Cooling
z
Cooling capacity (%)
104
102
100
98
96
94
92
500 600 700 800 900 1,000 1,100 1,200 1,300
Airow (m3/h)
Capacity

- (01 - 12) -
DUCT TYPE ARGA18-25FMTA DUCT TYPE ARGA18-25FMTA
MODEL
 : ARGA25FMTA
Static pressure (Pa)
611 14 21 25 30 35 40
FAN SPEED
Hi m3/h - - - - - 1300 1200 1100
l/s -----361 333 306
CFM - - - - - 765 706 647
Med m3/h - - - 980 910 830 - -
l/s - - - 272 254 231 - -
CFM - - - 577 539 489 - -
Low m3/h - - 825 690 - - - -
l/s - - 229 192 - - - -
CFM - - 486 406 - - - -
Quiet m3/h 630 525 - - - - - -
l/s 175 146 - - - - - -
CFM 371 309 - - - - - -
Hi
Med
Low
Quiet
Q-h Characteristic curve
Static pressure (Pa)
50
40
30
20
10
0
500 600 700 800 900 1,000 1,100 1,200 1,300
Airow (m3/h)
Cooling
z
Cooling capacity (%)
104
102
100
98
96
94
92
500 600 700 800 900 1,000 1,100 1,200 1,300
Airow (m3/h)
Capacity

- (01 - 13) -
DUCT TYPE ARGA18-25FMTA DUCT TYPE ARGA18-25FMTA
STATIC PRESSURE MODE 17-2.
MODEL
 : ARGA18FMTA
Static pressure (Pa)
18 22 29 33 41 47 56 64
FAN SPEED
Hi m3/h - - - - - - 1150 950
l/s ------ 319 264
CFM ------677 559
Med m3/h - - - - 995 810 - -
l/s ---- 276 225 - -
CFM ----586 477 - -
Low m3/h - - 805 685 - - - -
l/s - - 224 190 ----
CFM - - 474 403 ----
Quiet m3/h 645 550 - - - - - -
l/s 181 153 ------
CFM 383 324 ------
Q-h Characteristic curve
Static pressure(Pa)
70
60
50
40
30
20
10
500 600 700 800 900 1,000 1,100 1,200 1,300
Airow (m3/h)
Cooling
z
Cooling capacity (%)
500 600 700 800 900 1,000 1,100 1,200 1,300
Airow (m3/h)
104
102
100
98
96
94
92
Capacity

- (01 - 14) -
DUCT TYPE ARGA18-25FMTA DUCT TYPE ARGA18-25FMTA
MODEL
 : ARGA25FMTA
Static pressure (Pa)
20 23 30 35 40 47 55 65
FAN SPEED
Hi m3/h - - - - - - 1200 1000
l/s - - - - - - 333 278
CFM - - - - - - 706 589
Med m3/h - - - - 1000 815 - -
l/s - - - - 278 226 - -
CFM - - - - 589 480 - -
Low m3/h - - 830 680 - - - -
l/s - - 231 189 - - - -
CFM - - 489 400 - - - -
Quiet m3/h 650 540 - - - - - -
l/s 181 150 - - - - - -
CFM 383 318 - - - - - -
Q-h Characteristic curve
Static pressure(Pa)
70
60
50
40
30
20
10
500 600 700 800 900 1,000 1,100 1,200 1,300
Airow (m3/h)
Cooling
z
Cooling capacity (%)
500 600 700 800 900 1,000 1,100 1,200 1,300
Airow (m3/h)
104
102
100
98
96
94
92
Capacity

- (01 - 15) -
DUCT TYPE ARGA18-25FMTA DUCT TYPE ARGA18-25FMTA
STATIC PRESSURE MODE 27-3.
MODEL
 : ARGA18FMTA
Static pressure (Pa)
33 36 49 54 69 73 90 97
FAN SPEED
Hi m3/h - - - - - - 1135 950
l/s ------ 315 264
CFM ------668 559
Med m3/h - - - - 990 825 - -
l/s - - - - 275 229 - -
CFM ----583 486 - -
Low m3/h - - 820 710 - - - - l/s - - 228 197 ----
CFM - - 483 418 ----
Quiet m3/h 685 585 - - - - - -
l/s 190 163 ------
CFM 403 344 ------
Q-h Characteristic curve
Static pressure(Pa)
110
100
90
80
70
60
50
40
30
500 600 700 800 900 1,000 1,100 1,200 1,300
Airow (m3/h)
Cooling
z
Cooling capacity (%)
104
102
100
98
96
94
92
500 600 700 800 900 1,000 1,100 1,200 1,300
Airow (m3/h)
Capacity

- (01 - 16) -
DUCT TYPE ARGA18-25FMTA DUCT TYPE ARGA18-25FMTA
MODEL
 : ARGA25FMTA
Static pressure (Pa)
35 37 50 55 68 75 93 100
FAN SPEED
Hi m3/h - - - - - - 1160 930
l/s - - - - - - 322 258
CFM - - - - - - 683 547
Med m3/h - - - - 1020 800 - - l/s - - - - 283 222 - -
CFM - - - - 600 471 - -
Low m3/h - - 835 670 - - - - l/s - - 232 186 ----
CFM - - 491 394 - - - -
Quiet m3/h 660 530 - - - - - -
l/s 183 147 ------
CFM 388 312 ------
Q-h Characteristic curve
Static pressure(Pa)
110
100
90
80
70
60
50
40
30
500 600 700 800 900 1,000 1,100 1,200 1,300
Airow (m3/h)
Cooling
z
Cooling capacity (%)
104
102
100
98
96
94
92
500 600 700 800 900 1,000 1,100 1,200 1,300
Airow (m3/h)
Capacity

- (01 - 17) -
DUCT TYPE ARGA18-25FMTA DUCT TYPE ARGA18-25FMTA
STATIC PRESSURE MODE 37-4.
MODEL
 : ARGA18FMTA
Static pressure (Pa)
54 56 83 87 113 118 142 150
FAN SPEED
Hi m3/h - - - - - - 1140 1050
l/s ------ 317 292
CFM ------ 671 618
Med m3/h - - - - 1030 920 - -
l/s ----286 256 - -
CFM ----606 542 - -
Low m3/h - - 880 790 - - - -
l/s - - 244 219 ----
CFM - - 518 465 ----
Quiet m3/h 710 650 - - - - - -
l/s 197 181 ------
CFM 418 383 ------
Q-h Characteristic curve
Static pressure(Pa)
150
140
130
120
110
100
90
80
70
60
50
500 600 700 800 900 1,000 1,100 1,200 1,300
Airow (m3/h)
Cooling
z
Cooling capacity (%)
104
102
100
98
96
94
92500 600 700 800 900 1,000 1,100 1,200 1,300
Airow (m3/h)
Capacity