Daitsu L/M-STAT AMV Series Manual

SK2018 GLOBAL FDLA-V/P-AC-001
FDLA –V / P –AC MOTOR

Page 1 of 51
SK2018 GLOBAL FDLA-V/P-AC-001
INVESTING IN QUALITY, RELIABILITY & PERFORMANCE
ISO 9001 QUALITY
World Leading Design and Technology
Every product is manufactured to meet
the stringent requirements of the
internationally recognized ISO 9001
standard for quality assurance in design,
development and production.
Equipped with the latest air-conditioning test rooms
and manufacturing technology, we produce over
50,000 fan coil units each year, all conforming to the
highest international standards of quality and safety.
CE SAFETY STANDARDS
The Highest Standards of Manufacturing
All products conform to the Certificate
Europe directives (Machinery Safety,
Electromagnetic Compatibility and Low
Voltage), as required throughout the
European Community, to guarantee
correct standards of safety.
In order to guarantee the very highest standards and
performance, we manage every stage in the
manufacturing of our products. Throughout the
production process we maintain strict control,
starting with our extensive resources in research
and development through to the design and
manufacture of almost every individual component,
from molded plastics to the assembly of units and
controllers.
EUROVENT CERTIFICATION
Quality Controlled from Start to Finish
Our highly trained staff and strict quality control
methods enable us to produce products with an
exceptional reputation for reliability and efficiency,
maintained over many years. As well as CE
certification and ISO 9001, several products ranges
have UL / ETL safety approval in the USA and
Canada, Eurovent performance and sound
certification as well as ROHS compliance for Europe,
giving you the confidence of knowing our company
is the right choice when selecting fan coil units.
WEEE MARK
All products conform to the
“WEEE” directive to guarantee
correct standards of
environmental solutions.
ALWAYS MAKE SURE THIS MANUAL REMAINS WITH THE UNIT. READ THIS MANUAL BEFORE PERFORMING ANY OPERATION
ON THE UNIT.

Page 2 of 51
SK2018 GLOBAL FDLA-V/P-AC-001
Table of Contents
A. Technical Data ...................................................................................................................................................................5
A.1. General Description ............................................................................................................................................................5
A.2. General Specifications ........................................................................................................................................................6
A.2.1. 2-pipe Systems ...........................................................................................................................................................6
A.2.2. 4-pipe Systems ...........................................................................................................................................................8
A.3. Coil Data .............................................................................................................................................................................9
A.4. Dimensional Drawings......................................................................................................................................................10
A.5. Sound Data .......................................................................................................................................................................11
A.6. Valve Information (Optional)............................................................................................................................................13
A.6.1. On/Off Ball Valve Model...........................................................................................................................................13
A.6.2. Modulating Valve Model ..........................................................................................................................................14
B. Installation....................................................................................................................................................................... 15
B.1. Safety Precautions ............................................................................................................................................................15
B.2. Location ............................................................................................................................................................................16
B.3. Installation Procedures.....................................................................................................................................................16
B.4. Insulation ..........................................................................................................................................................................18
B.5. Air Duct Connection..........................................................................................................................................................18
B.6. Piping Connections ...........................................................................................................................................................18
B.7. Electrical Connection ........................................................................................................................................................19
C. Maintenance.................................................................................................................................................................... 21
C.1. General Maintenance .......................................................................................................................................................21
C.2. Regular Maintenance .......................................................................................................................................................21
C.3. Filter Cleaning...................................................................................................................................................................21
C.4. Fan Motor Assembly Maintenance...................................................................................................................................21
C.5. Coil Direction Interchange ................................................................................................................................................22
C.6. Electric Heater Replacement ............................................................................................................................................22
D. Control Specifications: Complete Function PCB: AC-S1 Control Board .............................................................................23
D.1. I/O Port Definitions...........................................................................................................................................................23
D.2. Wiring Diagrams ..............................................................................................................................................................24
D.2.1. Standard AC-S1 Control PCB.....................................................................................................................................24
D.2.2. Master Slave Networking Wiring Diagram ...............................................................................................................25
D.3. Configuration Settings......................................................................................................................................................26
D.3.1. Fan Coil Unit ON/OFF ...............................................................................................................................................27
D.3.2. Auto Restart .............................................................................................................................................................27
D.4. Control Logics for 2-Pipe System ......................................................................................................................................28
D.4.1. With Valve Configuration .........................................................................................................................................28
D.4.2. Without Valve Configuration....................................................................................................................................30
D.5. Control Logics for 4-Pipe System ......................................................................................................................................31
D.6. Sleep Mode.......................................................................................................................................................................33
D.7. Auto Fan Speed ................................................................................................................................................................33
D.8. Buzzer ...............................................................................................................................................................................34
D.9. Auto Restart .....................................................................................................................................................................34

Page 3 of 51
SK2018 GLOBAL FDLA-V/P-AC-001
D.10. On/Off Switch on LED Display Panel...............................................................................................................................34
D.11. Electric Heater Safety Switch..........................................................................................................................................34
D.12. Low Temperature Protection of Indoor Coil in Winter ...................................................................................................34
D.13. LED Display and Error Description ..................................................................................................................................35
D.14. LED Display on Master/Slave Connection.......................................................................................................................36
D.15. Master-Slave Network....................................................................................................................................................37
D.15.1. Master Unit Control Settings..................................................................................................................................37
D.15.2. Master Slave Network Setup..................................................................................................................................38
D.15.3. Master Slave Communication Method ..................................................................................................................40
D.16. Open Modbus Protocol...................................................................................................................................................41
E. User Interface .................................................................................................................................................................. 44
E.1. Remote Handset ...............................................................................................................................................................44
E.2. Wired Wall Pad Controller ................................................................................................................................................45
F. Sensor Resistance R-T Conversion Table........................................................................................................................... 49
G. Troubleshooting .............................................................................................................................................................. 50
H. Exploded Diagram ...........................................................................................................................................................51

Page 4 of 51
SK2018 GLOBAL FDLA-V/P-AC-001
Model Code Nomenclature
FDLA
-
(3R)
-
09
-
V
S
+
LS
LS
Left Side Coil
RS
Right Side Coil
S
Complete function onboard PCB
with integrated group control
functionality.
T
Terminal strip only
P
Chilled/Hot Water, 4-Pipe
V
Chilled/Hot Water, 2-Pipe
09-60
Unit Sizes. See General
Specification Section A for cooling
and heating capacities
3R
2-pipe 3-row
4R
2-pipe 4-row
3+1R
4-pipe 3-row for cooling and 1 row
for heating
FDLA
Low Static Hydronic Ducted Unit

Page 5 of 51
SK2018 GLOBAL FDLA-V/P-AC-001
General Description
The Duct Fan Coil is designed to meet and exceed the demanding requirements for efficiency and quiet operation.
Structure
The structure is made from heavy gauge galvanized steel panels with couplings for the connection of ducting and a gravity
drain pan with insulation for condensation. Fire resistant insulation is optional for internal case to provide both thermal and
acoustic insulation. Insulation is also fitted on the top of coil.
Condensate Pans
Positive sloped drain pans are steel and powder coated with self-extinguishing closed cell expanded polyethylene with
thermal properties. The drain pan outlet is 3/4” (standard on the same side of coil connections).
Coils
Constructed with seamless copper tubes and headers. The tubes are mechanically expanded into corrugated aluminum fin
material for a permanent primary to secondary surface bond. Coils are tested at 25 bar (363 psi) and recommended for
operating at 8 bar (116 psi). Coils include manual air vent and water purge valve.
Fan Wheels
They are double inlet forward curved centrifugal type. Wheels are statically and dynamically balanced for smooth, quite
operation. The housing is constructed from heavy gauge galvanized steel with die-formed inlet cones.
AC Motor
Standard motors are PSC, permanently lubricated type with internal thermal overload protection. The unit is using 3-speed
AC motor.
Air filter
It is easily removable and washable and is made from self-extinguishing acrylic with an efficiency of class EU2 (G2)
(Merv 2-4). G4 (Merv 8) efficiency is as optional.
Complete Function Control (AC-S1 type)
The PCB (printed circuit board) Modbus microprocessor controls functionality of the indoor fan motor, water valves (ON/OFF)
and electric heater (optional), to maintain room conditions at a user-defined set point. Temperature settings, fan speeds and
other control functions can be changed by either infrared handset or wired wall pad controller.
Terminal Strip (T1 type)
Terminal block is preinstalled and connected to AC motor. The motor can be controlled by external thermostat. 40VA (24VAC)
transformer is optional which supplies power to thermostat and modulating valve.
Terminal Strip (T2 type)
A 24VAC relays board is used to drive 3-speed AC motor. 40VA (24VAC) transformer is optional and supplies power to
thermostat and modulating valve.
Casing with insulation (Optional)
Coil with insulation on top
Sides with insulation
Fan Deck
Drain pan with insulation

Page 6 of 51
SK2018 GLOBAL FDLA-V/P-AC-001
General Specifications
A.2.1. 2-pipe Systems
Product range: FDLA(3R) Low Static Hydronic Ducted Fan Coil Unit
FDLA(3R)-V~ Hydronic Ducted 2-pipe Unit with 3-row Coils and AC motor
FDLA(3R)-[Size]-V~
09
12
15
18
24
30
34
40
54
60
Unit
Configuration
Configuration
2-pipe
Number Of Fan Blowers
Single
Twin
Three
Four
Three
Four
Power Supply (V/Ph/Hz)
230 / 1 / 50e
220 / 1 / 60
Operation Control
~S: Complete function onboard PCB with integrated group control functionality.
~T: Terminal strip only.
Performance Data
Air
Air Flow
H
m3/hr
463
574
784
913
1085
1363
1611
1915
2477
3198
M
429
553
746
892
1051
1310
1554
1871
2374
3019
L
401
524
656
749
953
1146
1413
1767
2247
2912
ESP
H
Pa
58
54
59
55
62
56
52
60
60
57
M
50
50
50
50
50
50
50
50
50
50
L
35
35
30
32
39
31
35
40
43
39
Cooling
Cooling Capacitye
H
kW
2.82
3.39
4.34
5.13
5.84
8.39
8.74
10.21
13.25
15.54
M
2.66
3.29
4.19
5.02
5.7
8.13
8.53
10.06
12.86
14.85
L
2.52
3.17
3.79
4.43
5.3
7.35
7.95
9.67
12.27
14.4
Sensible Cooling
Capacitye
H
2.03
2.42
3.15
3.69
4.16
5.98
6.31
7.39
9.55
11.14
M
1.91
2.34
3.03
3.6
4.05
5.78
6.15
7.27
9.25
10.62
L
1.8
2.25
2.72
3.14
3.74
5.18
5.7
6.95
8.77
10.25
Latent Cooling
Capacity
H
kW
0.79
0.97
1.19
1.44
1.68
2.41
2.43
2.82
3.7
4.4
M
0.75
0.95
1.16
1.42
1.65
2.35
2.38
2.79
3.61
4.23
L
0.72
0.92
1.07
1.29
1.56
2.17
2.25
2.72
3.5
4.15
FCEERe
Rating
42.4
40.8
33.5
39.1
33.2
38.7
37.5
31.8
35.2
32.3
Class
C
C
D
D
D
D
D
D
D
D
Heating
Heating Capacitye
H
kW
2.43
3.04
3.98
4.67
5.52
7.13
8.23
9.52
12.2
15.3
M
2.32
2.95
3.82
4.6
5.38
6.94
8.02
9.36
11.9
14.6
L
2.2
2.82
3.47
3.99
5.03
6.26
7.42
8.96
11.4
14.3
Max. Electric Heater
Capacity@220V
2
3
4
5
5
6
6
6
6
6
FCCOPe
Rating
37.1
36.4
30.5
35.2
31.3
32.9
35.0
29.5
32.7
32.3
Class
D
D
D
D
D
D
D
D
D
D
Sound
Sound Pressure Level ( Outlet )
dB(A)
48/47/43
50/49/46
52/50/44
52/51/46
54/52/49
53/52/47
56/54/50
58/55/52
58/54/50
59/57/55
Sound Pressure Level
( Inlet + Radiated )
50/49/45
52/51/48
54/52/46
54/53/48
56/54/51
55/54/49
58/56/52
60/57/54
60/56/52
61/59/57
Sound Power Level ( Outlet )e
57/56/52
59/58/55
61/59/53
61/60/55
63/61/58
62/61/56
65/63/59
67/64/61
67/63/59
68/66/64
Sound Power Level
( Inlet + Radiated )e
59/58/54
61/60/57
63/61/55
63/62/57
65/63/60
64/63/58
67/65/61
69/66/63
69/65/61
70/68/66
Electrical
Fan Motor Powere
H
W
67
82
120
123
167
204
222
314
430
554
M
66
80
120
122
166
203
220
310
365
494
L
58
78
116
117
163
194
216
307
345
424
Fan Motor Running Current @ H
A
0.29
0.36
0.52
0.53
0.73
0.89
0.97
1.37
1.87
2.41
Fan Motor Starting Current @ H
A
0.87
1.07
1.57
1.60
2.18
2.66
2.90
4.10
5.61
7.23
Hydraulic
Cooling Water Flow
Rate
H
L/h
483
581
744
880
1002
1438
1498
1751
2272
2663
M
456
564
718
861
976
1394
1463
1724
2205
2546
L
433
543
649
760
908
1260
1363
1658
2104
2468
Cooling Pressure
Drop
H
kPa
23.6
36.47
20.51
30.04
41.16
46.3
17.45
24.15
44.88
63.92
M
21.42
34.68
19.29
28.9
39.41
43.94
16.75
23.52
42.65
59.2
L
19.58
32.5
16.27
23.4
34.82
37
14.86
22
39.38
56.14
Heating Water
Flow Rate
H
L/h
417
522
682
801
947
1223
1412
1632
2099
2615
M
397
505
655
788
922
1190
1374
1605
2033
2501
L
377
484
596
685
862
1074
1272
1535
1947
2444
Heating Pressure
Drop
H
kPa
15.4
25.5
14.8
21.6
31.6
29.8
13.3
18.1
33.4
52.9
M
14.2
24.1
13.8
21
30.2
28.4
12.7
17.6
31.6
49.1
L
12.9
22.4
11.7
16.5
27
23.8
11.1
16.3
29.4
47.2
water content
L
0.72
0.87
1.02
1.17
1.32
1.92
2.07
2.22
2.59
2.87
Construction and
Packing Data
Water
Connections
Type
Socket (Threaded Female)
In
mm
[in]
19.05 [3/4]
Out
Condensate Drainage
Connection
Dimensions
L
mm
755
855
955
1155
1255
1655
1755
1855
1755
1955
W
550
620
H
250
300
Net Weight
kg
17
23
24
28
31
36
43
45
51
60
"e": Above specifications are based on declared Eurovent test data for the year of publication of this document. To confirm the most updated specifications,
please visit www.eurovent-certification.com.
Eurovent testing conditions:
a. Cooling mode:
b. Heating mode:
- Return air temperature: 27C DB/ 19C WB.
- Return air temperature: 20C.
- Inlet/ outlet water temperature: 7C/ 12C.
- Inlet/ Outlet water temperature: 45C/ 40C.

Page 7 of 51
SK2018 GLOBAL FDLA-V/P-AC-001
Product range: FDLA(4R) Low Static District Cooling Hydronic Ducted Fan Coil Unit
FDLA(4R)-V~ Hydronic Ducted 2-pipe Unit with 4-row Coils and AC motor
Unit Configuration
FDLA(4R)-[Size]-V~
09
12
15
18
24
30
34
40
54
60
Configuration
2-pipe
Number Of Fan Blowers
Single
Twin
Three
Four
Three
Four
Power Supply (V/Ph/Hz)
230 / 1 / 50
220 / 1 / 60
Operation Control
~S: Complete function on board PCB with integrated group control functionality
~T: Terminal strip only.
Performance Data
Air
Air Flow
H
3
m3/hr
442
553
742
868
1040
1294
1538
1832
2440
3046
M
2
411
531
709
849
1010
1243
1485
1798
2342
2878
L
1
386
504
629
721
921
1103
1361
1706
2215
2782
Available
pressure
H
3
Pa
58
54
59
55
62
56
52
60
60
57
M
2
50
50
50
50
50
50
50
50
50
50
L
1
35
35
30
32
39
31
35
40
43
39
Cooling
Cooling
Capacity
H
3
kW
2.09
2.53
3.35
4.2
4.77
6.66
7.5
8.77
11.19
12.67
M
2
1.98
2.46
3.26
4.11
4.66
6.47
7.32
8.63
10.86
12.13
L
1
1.89
2.36
2.97
3.64
4.34
5.9
6.82
8.36
10.37
11.86
Sensible
Cooling
Capacity
H
3
1.46
1.75
2.32
2.92
3.31
4.61
5.17
6.05
7.8
8.85
M
2
1.37
1.7
2.25
2.86
3.23
4.47
5.03
5.94
7.56
8.46
L
1
1.3
1.63
2.03
2.5
2.98
4.05
4.66
5.73
7.18
8.26
Sound
Sound Pressure Level
(Outlet)
dB(A)
48/47/43
50/49/46
52/50/44
52/51/46
54/52/49
53/52/47
56/54/50
58/55/52
58/54/50
59/57/55
Sound Pressure Level
(Inlet + Radiated)
50/49/45
52/51/48
54/52/46
54/53/48
56/54/51
55/54/49
58/56/52
60/57/54
60/56/52
61/59/57
Sound Power Level
(Outlet)
57/56/52
59/58/55
61/59/53
61/60/55
63/61/58
62/61/56
65/63/59
67/64/61
67/63/59
68/66/64
Sound Power Level
(Inlet + Radiated)
59/58/54
61/60/57
63/61/55
63/62/57
65/63/60
64/63/58
67/65/61
69/66/63
69/65/61
70/68/66
Electrical
Fan Motor
Power
H
3
W
67
82
120
123
167
204
222
314
430
554
M
2
66
80
120
122
166
203
220
310
365
494
L
1
58
78
116
117
163
194
216
307
345
424
Fan Motor Running
Current @ H
A
0.29
0.36
0.52
0.53
0.73
0.89
0.97
1.37
1.87
2.41
Fan Motor Starting
Current @ H
A
0.87
1.07
1.57
1.60
2.18
2.66
2.90
4.10
5.61
7.23
Hydraulic
Cooling Water
Flow Rate
H
L/h
200
241
319
400
454
634
714
835
1065
1207
M
188
234
310
391
444
616
697
822
1034
1155
L
180
225
283
347
413
562
650
796
987
1130
Cooling Pressure
Drop
H
kPa
7.2
11.19
20.18
10.82
14.69
15.71
20.76
28.77
17.05
22.94
M
6.52
10.64
19.21
10.42
14.13
14.96
19.93
28.01
16.2
21.31
L
6.03
9.97
16.4
8.48
12.5
12.8
17.68
26.52
14.97
20.51
Water content
L
0.96
1.16
1.36
1.56
1.76
2.56
2.76
2.96
3.45
3.79
Construction and
Packing Data
Water
Type
Socket (Threaded Female)
Connections
In
in
3/4
Out
Condensate Drainage
Connection
Dimensions
L
mm
755
855
955
1155
1255
1655
1755
1855
1755
1955
W
550
620
H
250
300
Net Weight
kg
17
23
24
28
31
36
43
45
51
60
a. Cooling mode:
- Return air temperature: 24C DB/ 18C WB.
- Inlet/ outlet water temperature: 5.5C/ 14.5C.

Page 8 of 51
SK2018 GLOBAL FDLA-V/P-AC-001
A.2.2. 4-pipe Systems
Product range: FDLA(3+1R) Low Static Hydronic Ducted Fan Coil Unit
FDLA(3+1R)-P~ Hydronic Ducted 4-pipe Unit with 3-row Coils and AC motor
Unit Configuration
FDLA(3+1R)-[Size]-P~
09
12
15
18
24
30
34
40
54
60
Configuration
4-pipe
Number Of Fan Blowers
Single
Twin
Three
Four
Three
Four
Power Supply
(V/Ph/Hz)
230 / 1 / 50
220 / 1 / 60
Operation Control
~S: Complete function onboard PCB with integrated group control functionality.
~T: Terminal strip only.
Performance Data
Air
Air Flow
H
3
m3/hr
442
553
742
868
1040
1294
1538
1832
2440
3046
M
2
411
531
709
849
1010
1243
1485
1798
2342
2878
L
1
386
504
629
721
921
1103
1361
1706
2215
2782
Available
pressure
H
3
Pa
58
54
59
55
62
56
52
60
60
57
M
2
50
50
50
50
50
50
50
50
50
50
L
1
35
35
30
32
39
31
35
40
43
39
Cooling
Cooling
Capacity
H
3
kW
2.72
3.29
4.16
4.94
5.65
8.07
8.46
9.9
13.06
14.97
M
2
2.56
3.19
4.03
4.87
5.55
7.82
8.24
9.75
12.67
14.28
L
1
2.45
3.07
3.69
4.27
5.14
7.15
7.73
9.43
12.18
13.94
Sensible
Cooling
Capacity
H
3
1.95
2.34
3.01
3.54
4.01
5.73
6.09
7.14
9.4
10.71
M
2
1.83
2.27
2.92
3.48
3.93
5.53
5.92
7.01
9.09
10.16
L
1
1.74
2.17
2.64
3.02
3.63
5.03
5.53
6.76
8.7
9.89
FCEER
Rating
41.0
39.6
32.5
37.7
32.2
37.5
36.4
31.0
34.8
31.2
Class
C
C
D
D
D
D
D
D
D
D
Heating
Heating
Capacity
H
3
kW
1.93
2.39
3.12
3.63
4.2
5.51
6.36
7.38
9.34
11.3
M
2
1.82
2.32
3
3.57
4.09
5.32
6.18
7.31
9.02
10.9
L
1
1.73
2.23
2.74
3.14
3.84
4.89
5.8
6.96
8.69
10.6
Max. Electric Heater
Capacity
2
3
4
5
6
FCCOP
Rating
29.2
28.7
24.1
27.6
23.9
25.5
27.2
22.9
24.9
24.0
Class
D
D
D
D
D
D
D
D
D
D
Sound
Sound Pressure Level
(Outlet)
dB(A)
48/47/43
50/49/46
52/50/44
46/41/23
54/52/49
53/52/47
56/54/50
58/55/52
58/54/50
59/57/55
Sound Pressure Level
(Inlet + Radiated)
50/49/45
52/51/48
54/52/46
54/53/48
56/54/51
55/54/49
58/56/52
60/57/54
60/56/52
61/59/57
Sound Power Level
(Outlet)
57/56/52
59/58/55
61/59/53
55/50/32
63/61/58
62/61/56
65/63/59
67/64/61
67/63/59
68/66/64
Sound Power Level
(Inlet + Radiated)
59/58/54
61/60/57
63/61/55
63/62/57
65/63/60
64/63/58
67/65/61
69/66/63
69/65/61
70/68/66
Electrical
Fan Motor
Power
H
3
W
67
82
120
123
167
204
222
314
430
554
M
2
66
80
120
122
166
203
220
310
365
494
L
1
58
78
116
117
163
194
216
307
345
424
Fan Motor Running
Current @ H
A
0.29
0.36
0.52
0.53
0.73
0.89
0.97
1.37
1.87
2.41
Fan Motor Starting
Current @ H
A
0.87
1.07
1.57
1.60
2.18
2.66
2.90
4.10
5.61
7.23
Hydraulic
Cooling Water
Flow Rate
3
L/h
466
564
713
847
968
1384
1451
1698
2239
2566
2
439
547
691
834
951
1340
1413
1671
2171
2448
1
419
526
633
732
881
1226
1326
1617
2087
2389
Cooling Pressure
Drop
3
kPa
22.23
34.68
19.05
28.16
38.82
43.36
16.52
22.91
43.76
59.98
2
20.1
32.93
18.1
27.42
37.66
41.07
15.8
22.3
41.55
55.39
1
18.56
30.79
15.58
21.97
33.08
35.31
14.17
21.08
38.85
53.15
Heating Water
Flow Rate
3
L/h
165
205
267
311
360
473
545
632
800
968
2
156
199
257
306
351
456
530
627
773
931
1
149
191
235
269
329
419
498
597
745
909
Heating Pressure
Drop
3
kPa
6.38
10.6
18.9
27.6
5.62
12.2
17
23.4
3.24
4.9
2
5.82
10.1
17.7
26.8
5.38
11.5
16.1
23.1
3.06
4.58
1
5.33
9.39
15.1
21.6
4.83
9.96
14.5
21.2
2.87
4.4
Cooling water content
L
0.72
0.87
1.02
1.17
1.32
1.92
2.07
2.22
2.59
2.84
Heating water content
0.24
0.29
0.34
0.39
0.44
0.64
0.69
0.74
0.86
0.95
Construction and
Packing Data
Water
Type
Socket(Threaded Female)
Connections
In
mm [in]
3/4”
Out
Condensate Drainage
Connection
Dimensions
L
mm
755
855
955
1155
1255
1655
1755
1855
1755
1955
W
550
620
H
250
300
Net Weight
Kg
17
23
24
28
31
36
43
45
51
60
a. Cooling mode:
b. Heating mode:
- Return air temperature: 27C DB/ 19C WB.
- Return air temperature: 20C.
- Inlet/ outlet water temperature: 7C/ 12C.
- Inlet /outlet water temperature: 70C/60C.

Page 9 of 51
SK2018 GLOBAL FDLA-V/P-AC-001
Coil Data
3-row Coils
Model
Fin height
(mm)
Fin Length
(mm)
Fins per
Inch
No. of
Rows
Fin width
(mm)
No. of
Circuits
Tube Ø
(mm)
FDLA(3R)-09
200
480
12.7
3
66
2
9.52
FDLA(3R)-12
580
2
FDLA(3R)-15
680
3
FDLA(3R)-18
780
3
FDLA(3R)-24
880
3
FDLA(3R)-30
1280
4
FDLA(3R)-34
1380
6
FDLA(3R)-40
1480
6
FDLA(3R)-54
250
1380
6
FDLA(3R)-60
1480
6
4-row Coils
Model
Fin height
(mm)
Fin Length
(mm)
Fins per
Inch
No. of
Rows
Fin width
(mm)
No. of
Circuits
Tube Ø
(mm)
FDLA(4R)-09
200
480
12.7
4
88
2
9.52
FDLA(4R)-12
580
2
FDLA(4R)-15
680
2
FDLA(4R)-18
780
3
FDLA(4R)-24
880
3
FDLA(4R)-30
1280
4
FDLA(4R)-34
1380
4
FDLA(4R)-40
1480
4
FDLA(4R)-54
250
1380
6
FDLA(4R)-60
1480
6
Heating Coil Data (4-pipe system with 1-row removable heating coil)
Model
Fin height
(mm)
Fin Length
(mm)
Fins per
Inch
No. of
Rows
Fin width
(mm)
No. of
Circuits
Tube Ø
(mm)
FDLA(1R)-09
200
480
12.7
3
66
1
9.52
FDLA(1R)-12
580
1
FDLA(1R)-15
680
1
FDLA(1R)-18
780
1
FDLA(1R)-24
880
2
FDLA(1R)-30
1280
2
FDLA(1R)-34
1380
2
FDLA(1R)-40
1480
2
FDLA(1R)-54
250
1380
5
FDLA(1R)-60
1480
5

Page 10 of 51
SK2018 GLOBAL FDLA-V/P-AC-001
Dimensional Drawings
Model
A
B
C
D
E
F
G
H
I
FDLA-09
535
485
485
510
755
400
φ14
250
213
FDLA-12
635
585
585
610
855
400
φ14
250
213
FDLA-15
735
685
685
710
955
400
φ14
250
213
FDLA-18
835
785
785
810
1155
400
φ14
250
213
FDLA-24
935
885
885
910
1255
400
φ14
250
213
FDLA-30
1335
1285
1285
1310
1655
400
φ14
250
213
FDLA-34
1435
1385
1385
1410
1755
400
φ14
250
213
FDLA-40
1575
1525
1525
1550
1855
400
φ14
250
213
FDLA-54
1435
1385
1385
1410
1755
470
φ14
300
263
FDLA-60
1695
1645
1645
1670
1955
470
φ14
300
263
Model
J
K
L
M
N
P
Q
V
W
FDLA-09
25
153
546
35
25
152
60
43.3
75
FDLA-12
25
153
546
35
25
152
60
43.3
75
FDLA-15
25
153
546
35
25
152
60
43.3
75
FDLA-18
25
153
546
35
25
152
60
43.3
75
FDLA-24
25
153
546
35
25
152
60
43.3
75
FDLA-30
25
153
546
35
25
152
60
43.3
75
FDLA-34
25
153
546
35
25
152
60
43.3
75
FDLA-40
25
153
546
35
25
152
60
43.3
75
FDLA-54
25
203
616
35
25
202
60
43.3
125
FDLA-60
25
203
616
35
25
202
60
43.3
125
(All dimensions shown in mm)

Page 11 of 51
SK2018 GLOBAL FDLA-V/P-AC-001
Sound Data
Sound Power (Inlet + Radiated)
Model
FDLA-09
FDLA-12
FDLA-15
FDLA-18
FDLA-24
speed
H
M
L
H
M
L
H
M
L
H
M
L
H
M
L
Sound Power
dB(A)
59.5
58.2
54
60.8
60.5
56.7
63
61
55.3
62.6
61.6
56.8
65.4
63.7
60.5
A-weighted Sound Power in 1/3 Octave-bands under rated ESP
20
17.3
17.9
18
14.6
17.7
20.4
23.8
21.8
23.2
18.8
20.6
25.5
22.7
24.8
13.9
25
20
16.1
12.7
15.7
17.8
19.7
27.9
22.7
23.4
22.4
22.1
18.1
20.2
19.4
18.9
31.5
17.7
17.9
11.7
20
20.2
16.4
22.4
19.7
15.9
19.9
16.8
14.4
19.7
17.4
16.2
40
18.8
16.6
11.7
15.9
14.7
15.8
17.8
14.6
13.4
16.6
18.9
14.9
17.8
20.2
16.7
50
18.8
18.2
15.5
18.5
19.7
17.4
20.2
19.7
18.9
22
20.5
19.8
21.2
21.4
21.2
63
20.6
22
19.3
25.6
22.9
19.1
21.2
17.5
19.5
26.3
23.1
24.9
23.2
22.7
22.4
80
25.4
22.7
21.1
25.9
26.3
24.6
27.4
28
21.8
29.6
28.3
23.8
29.9
28.6
27
100
30.1
26.1
22.7
30
27.6
28.2
29.7
28
22
32
29.2
26.5
33.3
32.4
32.8
125
34.7
35.2
29.1
36.6
37.9
32
36.4
37.1
29.5
40
39.5
32.5
43.2
41.6
35.8
160
42.7
41.6
35.8
46.3
45.5
39.7
45.1
43
36.2
46.2
44.8
40.8
47.6
48.7
42
200
42.1
42.2
37.5
47
47.7
42.1
46.5
44
38.6
48.2
45.2
39.7
50.8
46.6
43.3
250
43
42.8
36.9
46.2
46.7
42.2
45
44.6
36.6
46.6
45.6
40.8
49.9
47.8
44
315
44.5
43.8
39.9
45.6
44.9
41.6
48.7
48
42.2
48.4
47.3
43.7
53.4
50.2
47.4
400
49.9
47.7
43.7
49.6
49.3
45.5
51.3
49.5
45.1
52.3
50.8
45.8
54.3
52.8
50.8
500
53.1
52.4
47.2
54.2
53.8
50.9
55.1
54.9
49.3
54.1
54.7
50.2
57.5
55.9
53.5
630
53.1
51.1
47
52.6
53.2
49.1
56.3
54.2
47.5
56.2
55
50
59
56.5
54.7
800
48.7
46.2
43.7
51.9
50.4
47
53.3
51.1
45.2
51.6
50.8
46.1
55.2
53.1
49.4
1000
50.3
48.7
43.8
50.2
48.8
45.1
54.7
52.6
46.3
52.8
51.8
46.9
54.8
54.4
50.5
1250
45.8
44.4
40.6
48.1
46.9
42.6
50.1
47.8
41.3
49.5
48.2
43.7
52.7
50.9
47.5
1600
48
46.2
41.1
48.2
47.7
44
51.1
49.5
42.3
51.2
50.2
44.6
54
51.7
47.9
2000
44.9
43.4
39
47
46.3
42.3
49.2
46.9
39.9
49.3
47.7
42.3
52.8
49.8
46.1
2500
43.8
41.1
35.1
45.3
44.4
39.4
47.2
45.3
37.4
47.1
45.7
39.7
50.4
48.1
44.1
3150
41.7
39.2
32.1
42.5
41.6
36.5
45.3
42.9
35.1
45.3
44
37.3
49.5
46.9
42.1
4000
38
37.2
28.4
39.4
39
33.5
42.6
39.6
31.8
41.4
39.5
32.6
46.1
43.1
38.1
5000
34.3
35.8
24.6
36.1
35.5
30
38.5
35.4
27.7
37.8
36.6
29.1
43.2
40
35.4
6300
29.6
34
21.4
32.5
31.3
25.5
36
32.9
24.6
34.2
32.3
25.3
38.3
35.5
30
8000
27.1
32.3
20.4
27.8
27.1
21.8
33.7
30.1
21.8
30.8
28.8
22.5
35.1
32.2
26.4
10000
22.6
28.7
17.1
23.2
22.2
18.6
29.6
25.6
19.1
25.7
23.7
19
30.5
27.2
22.1
12500
17
24.7
13.1
18.2
16.6
14.1
23.5
19.7
15.1
19.8
17.9
14.9
23.4
20.6
16.4
16000
11.9
24.1
9.7
19.2
11.1
13.5
15.9
13.3
11.6
13.3
12.3
11.3
15.8
13.8
11.7

Page 12 of 51
SK2018 GLOBAL FDLA-V/P-AC-001
Model
FDLA-30
FDLA-34
FDLA-40-V
FDLA-54
FDLA-60-V
speed
H
M
L
H
M
L
H
M
L
H
M
L
H
M
L
Sound Power
dB(A)
63.9
62.5
58.1
66.3
65.4
61.5
68.6
66.5
63.4
69.1
65.9
61.1
70.1
68.4
66.7
A-weighted Sound Power in 1/3 Octave-bands under rated ESP
20
23
24.3
18.3
22.2
21.5
21.8
20
25.6
20.7
26.5
17.3
19.7
21.8
18.4
18.2
25
19.8
22.2
13.8
21.5
17.8
19.2
18.3
19.6
17.2
20.9
14.5
22
19.3
20.6
22.6
31.5
20.2
20.8
14.9
23
19.7
19.7
27.1
26.1
21.4
17.1
19
19.1
18.4
19.4
17.2
40
22.2
21.8
16.5
26
22.7
17.8
26.4
24.6
23.6
20.4
18.4
20.1
24.7
24.6
23.2
50
21.7
20.2
18.9
26.6
24.4
19.2
23.6
21.2
21.8
24.1
21.2
17.1
33.3
25.1
21.6
63
27.6
26.2
24.4
27.8
30.3
25.5
28.5
29.6
27.7
29.2
27.6
24.8
36.5
33.1
27.6
80
33.1
32.8
28
32.6
33.4
27.6
35.1
33.4
31.8
32.9
29.3
25.1
37.1
34.9
35.7
100
35.9
37.9
37.4
37.5
34.9
32.1
38
36.3
35
36.7
35.7
32.1
43.6
46.5
49
125
45.3
43.6
44.3
41.1
41.3
38.5
46
44.3
39.5
46.5
38.5
40.7
48.4
44.5
44.8
160
49.7
46.6
42.2
46
45.9
43.6
50.8
48.1
44.1
52.6
47.9
43.1
52.3
50
49.7
200
50.1
46
43.4
48.9
48.7
45.1
51.5
50
47.6
53.2
50.2
45
53.2
52.3
51
250
49.3
48.3
43.6
50.1
49.6
43.8
54.2
51.3
47.7
55.5
50
45.6
55.7
52.6
52.6
315
50
48.8
44.5
51
52.3
47.2
55.7
54.9
50.4
55
50.3
46.8
57.9
56.4
56.2
400
53.2
53.4
48.3
54.5
53.9
49.9
57.3
56
52.2
58.7
55.5
51.9
59.7
59.4
57.6
500
56.4
55
52.1
57.9
56.5
53.3
59.4
58.6
55.8
59.8
56.2
52.1
60.9
58.9
57.5
630
56.5
55.8
50.8
57.9
58.2
54.9
58.4
57.5
54.3
60.1
58.1
53
58.9
57.6
55.4
800
54.6
52.3
46.6
57.3
58.2
53
59.8
56.7
52.7
60.9
57.1
51.9
61.2
60.3
57.8
1000
52.5
51
47
55.5
54.6
50.9
60.2
57.6
54.7
58.4
54.2
49.6
59.8
57.5
55.2
1250
51.1
49.9
44.4
55.1
54.6
50.8
56
54.2
50.6
59.3
56.2
50.1
59.3
57.9
55.7
1600
51.9
50.1
45.2
55.5
54.4
49.9
56.9
54.6
51.4
57.9
54.5
49
58.7
56.6
54.4
2000
49.5
48.7
43.3
55.4
54.3
49
56.6
53.8
50.4
55.9
52.5
47.2
55.6
53.6
51.2
2500
48.4
46.9
41
52.4
50.9
45.5
54.9
52.4
48.4
55.6
52.3
46.3
55.2
53.4
50.8
3150
46.4
44.9
38.7
50.5
49.1
44
53.2
50.7
46.1
54.4
50.2
44.2
54.6
52.9
49.7
4000
44
42.4
36
47.2
45.7
40.1
50.9
48.4
43.9
52.3
48.1
42.1
52.3
50.3
47
5000
39.5
38
30.9
43.8
42.6
36.1
47.3
44.8
40
49.6
45
38.9
50.3
48
44.6
6300
36.4
34.3
27.4
39.1
38.1
31.5
43.4
40.4
34.7
45.4
41.1
34.7
47.8
45.4
42.1
8000
32.9
31.3
24.3
35.5
34.3
27.9
39.9
36.4
30.8
43.6
39
31.9
46.5
43.8
40.2
10000
28.6
27.1
20.8
30.7
29.6
23.2
34.8
31.3
25.6
38.7
33.6
26.7
42.8
39.9
36
12500
22.5
20.6
16.3
23.7
22.5
17.3
28.8
25.4
20
32.1
26.6
22
36.2
33.3
29.3
16000
25.5
14.1
12.3
15.8
15
12
23.7
17.2
13.1
22.8
17.6
16.2
28
24.9
20.7

Page 13 of 51
SK2018 GLOBAL FDLA-V/P-AC-001
Valve Information (Optional)
A.6.1. On/Off Ball Valve Model
SGS14HFCA-23030101
3-way ball valve with 3/4” connectors and on/off motorized actuator
SGS14HFCA-23030102
2-way ball valve with 3/4” connectors and on/off motorized actuator
Specifications
Materials
Medium: Cool/Hot water or 60% glycol
Structure: Two way or Three way
Operating Mode: On/Off
Power Supply: AC220V
Power Consumption: 6W (during valve position change)
Running Times: 15 sec.
Pipe Fitting: NPT internal thread
Body: Forged brass, nickel plated
Ball: Chrome plated brass
Stem: Brass
Seats: Fiberglass reinforced Teflon PTFE
Seal: 2 EPDM O-rings, lubricated
Pressure Rating: 2MPa
Media Temp. Range: 34°F to 203°F (1°C to 95°C)
Max. Differential Pressure: 1MPa
Protection Grade: IP65
Types: 2-way Valve, 3-way Valve (base)
Structure Schematic of Valve Bodies
Wiring Diagrams
2- way Valve
3- way Valve (base)
Dimensions and Kv Values
2-way Valve
3-way Valve
Caliber
(inch)
Kv Value
L
L1
H
3/4" (DN20)
7.5
66
33
36
(All dimensions shown in mm)

Page 14 of 51
SK2018 GLOBAL FDLA-V/P-AC-001
A.6.2. Modulating Valve Model
SGS14HFCA-23050201
3/4" inch 2-way modulating valve and 24VAC actuator with 0-10VDC input
Features
•24V AC power supply
•0~10VDC control signal
•Bi-directional modulating proportional control.
Technical data
•Working media: cool/hot water or with 60% glycol
•Media Temp. Range: 34°F to 203°F (1°C to 95°C)
•Rating pressure: 2.0MPa
•Max. Differential Pressure: 0.3MPa
•Opening or closing time: 50 sec. (50Hz) 40 sec. (60Hz)
•Connection: NPT internal thread
Dimensions & Kv Values
Size
Type
Kv Value
Dimension
C
D
E
F
G
3/4”(DN20)
2-way
4.6
115
73
67
89
90
(All dimensions shown in mm)

Page 15 of 51
SK2018 GLOBAL FDLA-V/P-AC-001
Safety Precautions
•When installing, performing maintenance or servicing Polar Air fan coil units observe the
precautions stated in this manual as well as those stated on the labels attached to the unit.
•Ensure all local and national safety codes, laws, regulations, as well as general electrical and
mechanical safety guidelines are followed for installation, maintenance and service.
•The appliance is for indoor use only.
•Ensure the correct power supply is provided.
•If the power supply cord is damaged, it must be replaced by qualified personnel.
•Installing and servicing fan coil unit should be performed by qualified service personnel only.
•This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or persons lacking in experience and knowledge of the appliance,
unless they have been given supervision or instruction concerning it.
•User of this appliance is responsible for his/her own safety.
•Warranty shall be voided if installation instructions and safety precaution stated in this manual are
not observed.
•The unit should only be switched off by using the ON-OFF button on the control interface.
CAUTIONS
Before any service or maintenance operations turn off the mains electrical supply.
DO NOT turn OFF the main power supply when the unit is operating. Turn off the
unit BEFORE turning off the main power

Page 16 of 51
SK2018 GLOBAL FDLA-V/P-AC-001
Location
Before installing and running the unit, please check the following:
1. There must be enough space for unit installation and maintenance. Please refer to below figure for the unit's outlines
and dimensions and for the minimum distance between the unit and the obstacle/ any obstructions/ its surroundings.
2. Please ensure there is enough space for piping connections and electrical wiring.
3. Check whether the hanging rods can support the weight of the unit (see specification table for weight of the unit).
4. The unit must be installed horizontally to ensure proper operation and condensate draining.
5. The external static pressure of the ducting must be within the unit’s static pressure range.
6. Confirm that the unit has been switched OFF before installing or servicing the unit.
Min 100mm Min 400mm
Installation Procedures
1. The unit is designed to be installed in a concealed ceiling. Installation and maintenance should be performed by
qualified personnel who are familiar with local codes and regulations, and are experienced with this type of appliance.
2. Please refer to the pictures below for installation procedures.
Counternut
Washer
NUT
Rod
Nut
50

Page 17 of 51
SK2018 GLOBAL FDLA-V/P-AC-001
CAUTION
Make sure the top of the unit is level after installation. The drain pan is designed
with a slight gradient to facilitate drainage.
CAUTIONS
Dimension M and N are determined by air duct design.
Air duct should be fire-proof. Please refer to concerned country national and local regulation.
Circulatory air pressure drop should be approximately equal to the External Static Pressure.

Page 18 of 51
SK2018 GLOBAL FDLA-V/P-AC-001
Insulation
1. The insulation design and materials should be complying with local and national codes and regulations.
2. Chilled water pipes and all parts on the pipes should be insulated.
3. It is also necessary to insulate the air duct.
Air Duct Connection
1. Circulatory air pressure drop should be within External Static Pressure.
2. Galvanized steel air ducts are suitable.
3. Make sure there is no leak of air.
4. Air duct should be fire-proof, refer to concerned country national and local regulations.
Piping Connections
1. Using suitable fittings as water pipe connections with reference to the outline and dimensions.
2. The water inlet is on the bottom while outlet on top.
3. The connection must be concealed with rubberized fabric to avoid leakage.
4. Drain pipe can be PVC or steel.
5. Tightening torque should not be too high when connecting water pipes, in order to avoid brass deformation or water-
leakage by torsion split.
6. The suggested slope of the drain pipe is at least 1:50.
Caution
When connecting pipe to fan coil unit, do not bend or reposition the coil header for alignment
purposes. This could cause a tubing fracture resulting in a water leak when water pressure is
applied to the system.

Page 19 of 51
SK2018 GLOBAL FDLA-V/P-AC-001
Electrical Connection
1. Wiring connection must be done according to the wiring diagram on the unit.
2. The unit must be GROUNDED well.
3. An appropriate strain relief device must be used to attach the power wires to the terminal box.
4. A 20mm hole is designed on the terminal box for field installation of the strain relief device.
5. Field wiring must be complied with the national security regulations.
6. A main switch or other means for disconnection, having a contact separation in all poles, must be incorporated in the fixed wiring in accordance with the relevant local and national
legislation.
*S Control Wiring Diagram: Please refer to section D.
T1 Control Wiring Diagram:
T2-24Vac Control Wiring Diagram:
CONTROL
LOAD
Fuse EHelement
Protectionswitch
L NHi MLo V1 V2 N
Heating signal (230V)
Cooling valvesignal(230V)
Neutral
L-speed signal (230V)
H-speedsignal (230V)
1Ph-230V-50HzPower input
Earth
MM Yellow(H)
Brown(M)
Orange(L)
Earth
M-speed signal (230V)
3-speedunit withEHWiringscheme
AC-T-001
Neutral
Live
TR kit isoptional.
24Vac
CONTROL
LOAD
Fuse EH element
Protectionswitch
L NHi MLo V1 V2 C R
Heating signal (24Vac)
Coolingvalve signal(24Vac)
Neutral
L-speed signal (24Vac)
H-speedsignal (24Vac)
1Ph-230V-50HzPower input
Earth
Yellow(H)
Brown(M)
Orange(L)
M-speedsignal (24Vac)
3-speedunit withEHWiringscheme
AC-T-24V
TR
Neutral
Live
TR kit is optional.
24Vac
24Vac for thermostat
Remark: 40VA 24Vac transformer is optional.