ED-DDW-201401B
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Transcript of ED-DDW-201401B
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Fan Coil Unit (DDW)
Catalogue/Engineering Data PCUA14-10
Horizontal UnitModel: DDW020H-DDW450H
Air Flow: 2,000m3
/h-45,000m3
/h
Vertical UnitModel: DDW040V-DDW450V
Air Flow: 4,000m3/h-45,000m
3/h
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DDWDouble Skin Fan Coil unit
Contents
Note: Installation and maintenance are to be performed only by qualied personnel who are
familiar with local codes and regulations, and experienced with this type of equipment.
Caution: Sharp edges and coil surfaces are a potential injury hazard. Avoid contact with them.
Warning: Moving machinery and electrical power hazard may cause severe personal injury or
death. Disconnect and lock off power before servicing equipment.
Literature No.: PCUA14-10
Supersedes: ED-DDW-201311B
Nomenclature....................................................................................................................... 2
Features................................................................................................................................ 3
Specications ...................................................................................................................... 4
Dimensions ........................................................................................................................ 10
Fan Discharge Type ........................................................................................................... 16
Selection Software ............................................................................................................ 17
Special Notes ..................................................................................................................... 18
Wiring Diagrams ................................................................................................................ 19
Installation.......................................................................................................................... 20
Servicing And Maintenance ............................................................................................. 22
Common Failures .............................................................................................................. 24
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DDW Double Skin Fan Coil unit
Nomenclature
D D W 080 H R 08 -4 L- F F B EExport
Design ID
Discharge Type
F - Horizontal Discharge Type
T - Top Discharge Type
Power Supply:
F - 380-415V/3N~/50Hz
R - 380V/3N~/60Hz P - 208-230V/3N~/60Hz
Q - 460V/3N~/60Hz
Pipe Connection:
R - Left Hand
L - Right Hand
(Facing Air Discharge)
Coil Rows:
4 - 4 Rows
6 - 6 Rows
External Total Pressure 08 - 80 Pa; 15 - 150Pa
22 - 220Pa; 30 - 300Pa
Air Conditioning
R - Return Air
F - Fresh Air
Structure Type
H - Horizontal
V - Vertical
Air Flow
080 - 8000m3/h
DDW - Double-Skin FCU
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DDWDouble Skin Fan Coil unit
Features
General Information
DAIKIN DDW air handling units are designed to meet the needs of the terminal air conditioning market. DDW
units are full featured handlers that are applicable for the central air-conditioning systems installed in hotels,
supermarkets, hospitals and ofce buildings.
Without Frame Type
DDW units are equipped with no frame structure patent of DAIKIN and prevent air leakage angle design,to ensure
no cold bridge and low leakage rate.
Casing
DDW Casing units is of double-skin panels and assembled with self supporting modular panel elements with an
integrated base frame made of galvanized steel. assembled 25mm polyurethane foam offer ideal heat/sound
insulation.
Filter
Washable nylon primary air lter, removable and easy installation. Bag lter is optional.
Coil Selection
All the computing results and the products built on these results have passed strict test. This ensures their safe,
reliable and effcient operation.
Sirocco Fan
High efcient and quiet titled multi-blade double-intake fans.
Motor
V-belt driving,Class F,IP55 provide different amounts of air ow and ETP to meet different needs.
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DDW Double Skin Fan Coil unit
Specifcations
DDW-H (Horizontal)
NOTES:
1) THE ABOVE PARAMETERS ARE FOR STANDARD PRODUCTS ONLY.
2) STANDARD RETURN AIR COOLING CONDITIONS: 27ºC DB/19.5ºC WB;
STANDARD FRESH AIR COOLING CONDITIONS: 34ºC DB/28ºC WB;
STANDARD RETURN AIR HEATING CONDITION: 21ºC DB; STANDARD FRESH AIR HEATING CONDITION: 0ºC WB STANDARD CHILLED
WATER ENTERING/LEAVING CONDITIONS: 7ºC FOR ENTERING WATER; 12ºC FOR LEAVING WATER;
STANDARD HOT WATER ENTERING/LEAVING CONDITIONS: 60ºC FOR ENTERING WATER; 50ºC FOR LEAVING WATER;
3) THE UNIT SUPPORTS HIGHER ESP AS REQUIRED BY CUSTOMERS. FOR DESIRED CONFIGURATIONS, PLEASE USE DAIKIN DDW
SELECTION SOFTWARE.
4) WATER INLET/OUTLET NPT CONNECTION IS OPTIONAL.
5) THE I, II, III, IV INDI CADES THE PARAMETERS CNDER DEFINED TOTAL PRESSURE CONDITION.
6) THE MOTOR OUTPUT POWER IS TESTED UNDER THE CORRESPONDING EXTERNAL TOTAL PRESSURE I, II, III, IV INDI CATES AND THE
UALNE IN THE BARCFET IS THE MOTOR OUTPUT POWER OF CODWS UNITS THE OTHER VAIUE IS THE 4 ROWS UNITS.
Model DDW020H DDW030H DDW040H DDW050H DDW060H DDW080H
Nominal Air Flow (m3 /h) 2000 3000 4000 5000 6000 8000
Internal+External
Static pressure
(Pa)
I(5) 80 80 80 - - -
II(5) 150 150 150 150 150 150
III(5) 220 220 220 220 220 220
IV(5) -- - - 300 300 300
Nominal cooling
capacity (kW)
4 Rows (Return air) 12 17 24 30 37 49
4 Rows (Fresh air) 28 41 56 66 80 111
6 Rows (Return air) 15 23 32 38 46 61
6 Rows (Fresh air) 34 52 67 86 103 136
Nominal heatingcapacity (kW)
4 Rows (Return air) 19 29 40 49 60 81
4 Rows (Fresh air) 32 48 65 80 97 1306 Rows (Return air) 23 35 47 59 71 94
6 Rows (Fresh air) 37 56 75 93 112 149
Coil
Type Corrugated aluminum n mechanically bonded with copper tube
FPI 12
Working pressure
(MPa)1.6
Entering/Leaving
water pipeR1-1/2 R1-1/2 R2 R2 R2 R2
Condensing water pipe R1-1/4
Copper pipie diameter
(mm)12.7
Fan
Type/Material High Efcient Centrifugal Multi-blades Fan/Galavnize Steel
Drive type V-belt
Fan disdchargeorientation
Lower horizontal discharge/Top discharge
Motor
Power supply 380V/3N~/50Hz
Motor type 3-Phase Asynchronous Motor,Class F, no less than IP54
Motor output
power (kW)
I(5) 0.37(0.37)(6) 0.55(0.55) 0.55(0.75) - - -
II(5) 0.37(0.55) 0.55(0.75) 0.75(1.1) 1.1(1.1) 1.1(1.5) 1.5(2.2)
III(5) 0.55(0.55) 0.75(0.75) 1.1(1.1) 1.1(1.5) 1.5(1.5) 2.2(2.2)
IV(5) - - - 1.5(1.5) 1.5(2.2) 2.2(2.2)
Filter Type/Material Nylon
Thickness (mm) 21
Casing Type 25mm Double skin,outer plate material is color coated steel,inner plate material is EG steel
Unit weight (kg)4 Rows 132 155 172 196 215 253
6 Rows 142 161 184 203 227 278
Unit dimension
Height (mm) 600 650 730 730 800 800
Width (mm) 900 1050 1080 1250 1320 1680
Length (mm) 960 1000 1100 1060 1150 1150
Packing
dimension
Height (mm) 800 850 930 930 1000 1000
Width (mm) 1150 1300 1330 1500 1570 1930
Length (mm) 1170 1210 1310 1270 1360 1360
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DDWDouble Skin Fan Coil unit
DDW-H (Horizontal)
NOTES:1) THE ABOVE PARAMETERS ARE FOR STANDARD PRODUCTS ONLY.2) STANDARD RETURN AIR COOLING CONDITIONS: 27ºC DB/19.5ºC WB; STANDARD FRESH AIR COOLING CONDITIONS: 34ºC DB/28ºC WB; STANDARD RETURN AIR HEATING CONDITION: 21ºC DB; STANDARD FRESH AIR HEATING CONDITION: 0ºC WB STANDARD CHILLED
WATER ENTERING/LEAVING CONDITIONS: 7ºC FOR ENTERING WATER; 12ºC FOR LEAVING WATER; STANDARD HOT WATER ENTERING/LEAVING CONDITIONS: 60ºC FOR ENTERING WATER; 50ºC FOR LEAVING WATER;
3) THE UNIT SUPPORTS HIGHER ESP AS REQUIRED BY CUSTOMERS. FOR DESIRED CONFIGURATIONS, PLEASE USE DAIKIN DDWSELECTION SOFTWARE.
4) WATER INLET/OUTLET NPT CONNECTION IS OPTIONAL.5) THE I, II, III, IV INDI CADES THE PARAMETERS CNDER DEFINED TOTAL PRESSURE CONDITION.
6) THE MOTOR OUTPUT POWER IS TESTED UNDER THE CORRESPONDING EXTERNAL TOTAL PRESSURE I, II, III, IV INDI CATES AND THE
UALNE IN THE BARCFET IS THE MOTOR OUTPUT POWER OF CODWS UNITS THE OTHER VAIUE IS THE 4 ROWS UNITS.
Model DDW100H DDW120H DDW150H DDW180H DDW200H DDW250H
Nominal Air Flow (m3 /h) 10000 12000 15000 18000 20000 25000
External
total
pressure
(Pa)
I(5) - - - - - -
II(5) 150 150 150 150 150 150
III(5) 220 220 220 220 220 220
IV(5) 300 300 300 300 300 300
Nominal
cooling
capacity
(kW)
4 Rows (Return air) 62 73 95 108 121 152
4 Rows (Fresh air) 139 166 194 233 266 333
6 Rows (Return air) 76 91 118 144 151 190
6 Rows (Fresh air) 170 204 263 316 346 430
Nominal
heating
capacity
(kW)
4 Rows (Return air) 101 120 152 182 200 250
4 Rows (Fresh air) 159 193 242 291 325 404
6 Rows (Return air) 118 141 179 213 237 297
6 Rows (Fresh air) 186 223 283 335 373 467
Coil
Type Corrugated aluminum n mechanically bonded with copper tube
FPI 12
Working pressure (MPa) 1.6
Entering/Leaving
water pipeR2 R2 R2-1/2 R2-1/2 R2-1/2 R3
Condensing water pipe R1-1/4
Copper pipie diameter (mm) 12.7
Fan
Type/Material High Efcient Centrifugal Multi-blades Fan/Galavnize Steel
Drive type V-belt
Fan disdcharge orientation Lower horizontal discharge/Top discharge
Motor
Power source 380V/3N~/50Hz
Motor type 3-Phase Asynchronous Motor,Class F, no less than IP54
Motor output power
(kW)
I(5) - - - - - -
II(5) 2.2(2.2)(6) 2.2(3.0) 3.0(4.0) 4.0(4.0) 4.0(4.0) 5.5(5.5)
III(5) 2.2(2.2) 3.0(3.0) 4.0(4.0) 4.0(5.5) 4.0(5.5) 5.5(7.5)
IV(5) 2.2(3.0) 3.0(3.0) 4.0(4.0) 5.5(5.5) 5.5(5.5) 7.5(7.5)
Filter Type/Material Nylon
Thickness (mm) 21
Casing Type25mm Double skin,outer plate material is color coated steel,inner plate material is
EG steel
Unit weight
(kg)
4 Rows 313 325 347 444 479 557
6 Rows 335 354 415 497 535 600
Unit
dimension
Height (mm) 930 1050 1180 1240 1240 1430
Width (mm) 1690 1690 1940 2120 2300 2400
Length (mm) 1170 1170 1170 1310 1310 1310
Packing
dimension
Height (mm) 1130 1250 1380 1440 1440 1630
Width (mm) 1940 1940 2190 2370 2550 2650
Length (mm) 1380 1380 1380 1520 1520 1520
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DDW Double Skin Fan Coil unit
Model DDW300H DDW350H DDW400H DDW450H
Nominal Air Flow (m3 /h) 30000 35000 40000 45000
External total
pressure (Pa)
I(5)
300 300 300 300II(5) 400 400 400 400
III(5) 500 500 500 500
IV(5) 600 600 600 600
Nominal cooling
capacity (kW)
4 Rows (Return air) 178 205 238 266
4 Rows (Fresh air) 390 448 520 577
6 Rows (Return air) 222 256 296 329
6 Rows (Fresh air) 490 556 639 703
Nominal heating
capacity (kW)
4 Rows (Return air) 295 337 391 437
4 Rows (Fresh air) 472 534 604 670
6 Rows (Return air) 371 398 450 500
6 Rows (Fresh air) 544 629 719 802
Coil
Type Corrugated aluminum n mechanically bonded with copper tube
FPI 12
Working pressure (MPa) 1.6
Entering/Leaving
water pipeR3 R2-1/2 R2-1/2 R2-1/2
Condensing water pipe R1-1/4
Copper pipie diameter
(mm)12.7
Fan
Type/Material High Efcient Centrifugal Multi-blades Fan/Galavnize Steel
Drive type V-belt
Fan disdcharge
orientationHorizontal discharge /Top discharge
Motor
Power source 380V/3N~/50Hz
Motor type 3-Phase Asynchronous Motor,Class F, no less than IP54
Motor output
power (kW)
I(5) 7.5(11)(6) 11(11) 11(15) 15(15)
II(5) 11(11) 11(15) 15(15) 15(18.5)
III(5) 11(11) 15(15) 15(15) 18.5(18.5)
IV(5) 15(15) 15(15) 18.5(18.5) 18.5(18.5)
Filter Type/Material Nylon
Thickness (mm) 21
Casing Type 25mm Double skin,outer plate material is color coated steel,inner plate material is EG steel
Unit dimension
Height (mm) 1549 1709 1869 2029
Length (mm) 1646 1646 1806 1806
Width (mm) 2766 2766 2926 2926
Packing
dimension
Height (mm) 1566 1726 1886 2046
Width (mm) 1846 1846 2006 2006Length (mm) 2966 2966 3126 3126
DDW-H (Horizontal)
NOTES:
1) THE ABOVE PARAMETERS ARE FOR STANDARD PRODUCTS ONLY.
2) STANDARD RETURN AIR COOLING CONDITIONS: 27ºC DB/19.5ºC WB;
STANDARD FRESH AIR COOLING CONDITIONS: 34ºC DB/28ºC WB;
STANDARD RETURN AIR HEATING CONDITION: 21ºC DB; STANDARD FRESH AIR HEATING CONDITION: 0ºC WB STANDARD CHILLED
WATER ENTERING/LEAVING CONDITIONS: 7ºC FOR ENTERING WATER; 12ºC FOR LEAVING WATER;
STANDARD HOT WATER ENTERING/LEAVING CONDITIONS: 60ºC FOR ENTERING WATER; 50ºC FOR LEAVING WATER;
3) THE UNIT SUPPORTS HIGHER ESP AS REQUIRED BY CUSTOMERS. FOR DESIRED CONFIGURATIONS, PLEASE USE DAIKIN DDW
SELECTION SOFTWARE.
4) WATER INLET/OUTLET NPT CONNECTION IS OPTIONAL.
5) THE I, II, III, IV INDI CADES THE PARAMETERS CNDER DEFINED TOTAL PRESSURE CONDITION.
6) THE MOTOR OUTPUT POWER IS TESTED UNDER THE CORRESPONDING EXTERNAL TOTAL PRESSURE I, II, III, IV INDI CATES AND THE
UALNE IN THE BARCFET IS THE MOTOR OUTPUT POWER OF CODWS UNITS THE OTHER VAIUE IS THE 4 ROWS UNITS.
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DDWDouble Skin Fan Coil unit
DDW-V (Vertical)
NOTES:
1) THE ABOVE PARAMETERS ARE FOR STANDARD PRODUCTS ONLY.
2) STANDARD RETURN AIR COOLING CONDITIONS: 27ºC DB/19.5ºC WB;
STANDARD FRESH AIR COOLING CONDITIONS: 34ºC DB/28ºC WB;
STANDARD RETURN AIR HEATING CONDITION: 21ºC DB; STANDARD FRESH AIR HEATING CONDITION: 0ºC WB STANDARD
CHILLED WATER ENTERING/LEAVING CONDITIONS: 7ºC FOR ENTERING WATER; 12ºC FOR LEAVING WATER;
STANDARD HOT WATER ENTERING/LEAVING CONDITIONS: 60ºC FOR ENTERING WATER; 50ºC FOR LEAVING WATER;
3) THE UNIT SUPPORTS HIGHER ESP AS REQUIRED BY CUSTOMERS. FOR DESIRED CONFIGURATIONS, PLEASE USE DAIKIN DDW
SELECTION SOFTWARE.
4) WATER INLET/OUTLET NPT CONNECTION IS OPTIONAL.
5) MODEL DDW040~250V ARE WITHOUT FRAME; DDW300~450V ARE WITH FRAME TYPE.
6) THE I, II, III, IV INDI CADES THE PARAMETERS CNDER DEFINED TOTAL PRESSURE CONDITION.
7) THE MOTOR OUTPUT POWER IS TESTED UNDER THE CORRESPONDING EXTERNAL TOTAL PRESSURE I, II, III, IV INDI CATES
AND THE UALNE IN THE BARCFET IS THE MOTOR OUTPUT POWER OF CODWS UNITS THE OTHER VAIUE IS THE 4 ROWS UNITS.
Model DDW040V DDW050V DDW060V DDW080V DDW100V DDW120V DDW150V
Nominal Air Flow (m3 /h) 4000 5000 6000 8000 10000 12000 15000
External
total
pressure
(Pa)
I(6) - - - - - - -
II(6) 150 150 150 150 150 150 150
III(6) 220 220 220 220 220 220 220
IV(6) 300 300 300 300 300 300 300
Nominal
cooling
capacity
(kW)
4 Rows (Return air) 23 29 36 49 62 72 90
4 Rows (Fresh air) 54 69 78 106 135 164 194
6 Rows (Return air) 31 39 54 61 76 94 118
6 Rows (Fresh air) 69 85 102 132 164 202 259
Nominal
heating
capacity
(kW)
4 Rows (Return air) 39 49 59 80 100 120 152
4 Rows (Fresh air) 64 80 96 128 161 193 241
6 Rows (Return air) 47 59 71 95 119 141 176
6 Rows (Fresh air) 75 93 112 149 187 223 279
Coil
Type Corrugated aluminum n mechanically bonded with copper tubeFPI 12
Working pressure (MPa) 1.6
Entering/Leaving
water pipeR2 R2 R2 R2 R2 R2 R2-1/2
Condensing water pipe R1-1/4
Copper pipie diameter (mm) 12.7
Fan
Type/Material High Efcient Centrifugal Multi-blades Fan/Galavnize Steel
Drive type V-belt
Fan disdcharge orientation Top discharge
Motor
Power source 380V/3N~/50Hz
Motor type 3-Phase Asynchronous Motor,Class F, no less than IP54
Motor output power
(kW)
I(6) - - - - - - -
II(6) 0.75(1.1)(7) 1.1(1.1) 1.5(1.5) 1.5(2.2) 2.2(2.2) 2.2(3.0) 3.0(4.0)
III(6) 1.1(1.1) 1.1(1.5) 1.5(2.2) 2.2(2.2) 2.2(2.2) 3.0(3.0) 4.0(4.0)
IV(6) 1.1(1.5) 1.5(1.5) 2.2(2.2) 2.2(2.2) 2.2(3.0) 3.0(3.0) 4.0(5.0)
Filter Type/Material Nylon
Thickness (mm) 21
Casing Type 25mm Double skin,outer plate material is color coated steel,inner plate material is EG steel
Unit weight
(kg)
4 Rows 199 225 246 274 345 369 432
6 Rows 208 237 259 305 367 399 474
Unit
dimension
Height (mm) 1283 1343 1403 1613 1853 1923 1673
Length (mm) 980 1140 1210 1320 1390 1530 2090
Width (mm) 650 650 650 810 900 900 900
Packing
dimension
Height (mm) 1470 1530 1590 1800 2040 2110 1860
Width (mm) 860 860 860 1020 1110 1110 1110
Length (mm) 1160 1320 1390 1500 1570 1710 2270
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DDW Double Skin Fan Coil unit
DDW-V (Vertical)
NOTES:1) THE ABOVE PARAMETERS ARE FOR STANDARD PRODUCTS ONLY.2) STANDARD RETURN AIR COOLING CONDITIONS: 27ºC DB/19.5ºC WB; STANDARD FRESH AIR COOLING CONDITIONS: 34ºC DB/28ºC WB; STANDARD RETURN AIR HEATING CONDITION: 21ºC DB; STANDARD FRESH AIR HEATING CONDITION: 0ºC WB STANDARD CHILLED
WATER ENTERING/LEAVING CONDITIONS: 7ºC FOR ENTERING WATER; 12ºC FOR LEAVING WATER; STANDARD HOT WATER ENTERING/LEAVING CONDITIONS: 60ºC FOR ENTERING WATER; 50ºC FOR LEAVING WATER;3) THE UNIT SUPPORTS HIGHER ESP AS REQUIRED BY CUSTOMERS. FOR DESIRED CONFIGURATIONS, PLEASE USE DAIKIN DDW
SELECTION SOFTWARE.4) WATER INLET/OUTLET NPT CONNECTION IS OPTIONAL.5) MODEL DDW040~250V ARE WITHOUT FRAME; DDW300~450V ARE WITH FRAME TYPE.6) THE I, II, III, IV INDI CADES THE PARAMETERS CNDER DEFINED TOTAL PRESSURE CONDITION.7) THE MOTOR OUTPUT POWER IS TESTED UNDER THE CORRESPONDING EXTERNAL TOTAL PRESSURE I, II, III, IV INDI CATES AND THE
UALNE IN THE BARCFET IS THE MOTOR OUTPUT POWER OF CODWS UNITS THE OTHER VAIUE IS THE 4 ROWS UNITS.
Model DDW180V DDW200V DDW250V DDW300V DDW350V DDW400V DDW450V
Nominal Air Flow (m3 /h) 18000 20000 25000 30000 35000 40000 45000
Externaltotal
pressure
(Pa)
I
(6)
- - - 300 300 300 300II(6) 150 150 150 400 400 400 400
III(6) 220 220 220 500 500 500 500
IV(6) 300 300 300 600 600 600 600
Nominal
cooling
capacity
(kW)
4 Rows (Return air) 109 121 154 178 205 238 266
4 Rows (Fresh air) 239 266 342 390 448 520 577
6 Rows (Return air) 135 152 193 222 256 296 329
6 Rows (Fresh air) 313 347 427 490 556 639 703
Nominal
heating
capacity
(kW)
4 Rows (Return air) 183 200 250 295 337 391 437
4 Rows (Fresh air) 292 325 393 472 534 604 670
6 Rows (Return air) 214 237 297 371 398 450 500
6 Rows (Fresh air) 336 373 469 544 629 719 802
Coil
Type Corrugated aluminum n mechanically bonded with copper tube
FPI 12
Working pressure (MPa) 1.6
Entering/Leaving
water pipeR2-1/2 R2-1/2 R3 R3 R2-1/2 R2-1/2 R2-1/2
Condensing water pipe R1-1/4
Copper pipie diameter (mm) 12.7
Fan
Type/Material High Efcient Centrifugal Multi-blades Fan/Galavnize Steel
Drive type V-belt
Fan disdcharge orientation Top discharge
Motor
Power source 380V/3N~/50Hz
Motor type 3-Phase Asynchronous Motor,Class F, no less than IP54
Motor output power
(kW)
I(6) - - - 7.5(11) 11(11) 11(15) 15(15)
II(6) 4.0(4.0)(7) 4.0(4.0) 5.5(5.5) 11(11) 11(15) 15(15) 15(18.5)
III(6) 4.0(5.5) 4.0(5.5) 5.5(7.5) 11(11) 15(15) 15(15) 18.5(18.5)
IV(6) 5.5(5.5) 5.5(5.5) 7.5(7.5) 15(15) 15(15) 18.5(18.5) 18.5(18.5)
Filter Type/Material Nylon
Thickness (mm) 21
Casing Type 25mm Double skin,outer plate material is color coated steel,inner plate material is EG steel
Unit weight
(kg)
4 Rows 485 538 622 - - - -
6 Rows 536 595 664 - - - -
Unit
dimension
Height (mm) 1923 1983 2043 2555 2715 3035 3195
Length (mm) 2240 2320 2670 2766 2766 2926 2926
Width (mm) 900 900 900 1006 1006 1166 1166
Packing
dimension
Height (mm) 2110 2170 2230 2572 2732 3052 3212
Width (mm) 1110 1110 1110 1206 1206 1366 1366
Length (mm) 2420 2500 2850 2966 2966 3126 3126
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DDWDouble Skin Fan Coil unit
DDW-H
DDW-V
NOTES:
THE DATA IS FOR STANDARD UNIT.ESP VALUE IS BASED ON ETP VALUE.FOR EXAMPLE,THE ESP VALUE IS 50PA WHEN ETP IS 80PA
FOR DDW020H UNIT.
External static presure check list
Unit model DDW020H DDW030H DDW040H DDW050H DDW060H DDW080H DDW100H DDW120H DDW150H DDW180H DDW200H
Nominal air fow (m3/h) 2000 3000 4000 5000 6000 8000 10000 12000 15000 18000 20000
ETP (Pa)
I 80 80 80 - - - - - - - -
II 150 150 150 150 150 150 150 150 150 150 150
III 220 220 220 220 220 220 220 220 220 220 220
IV - - - 300 300 300 300 300 300 300 300
ESP (Pa)
I 50 34 39 - - - - - - - -
II 120 104 109 86 104 68 99 77 35 61 85
III 190 174 179 156 174 138 169 147 105 131 155
IV - - - 236 254 218 249 227 185 211 235
Unit model DDW040V DDW050V DDW060V DDW080V DDW100V DDW120V DDW150V DDW180V DDW200V
Norminal air fow (m3/h) 4000 5000 6000 8000 10000 12000 15000 18000 20000
ETP (Pa)
I - - - - - - - - -
II 150 150 150 150 150 150 150 150 150
III 220 220 220 220 220 220 220 220 220
IV 300 300 300 300 300 300 300 300 300
ESP (Pa)
I - - - - - - - - -
II 69 86 58 68 85 56 78 61 85
III 139 156 128 138 155 126 148 131 155
IV 219 236 208 218 235 206 228 211 235
Unit model DDW250H DDW300H DDW350H DDW400H DDW450H DDW250V DDW300V DDW350V DDW400V DDW450V
Norminal air fow (m3/h) 25000 30000 35000 40000 45000 25000 30000 35000 40000 45000
ETP (Pa)
I - 300 300 300 300 - 300 300 300 300
II 150 400 400 400 400 150 400 400 400 400
III 220 500 500 500 500 220 500 500 500 500
IV 300 600 600 600 600 300 600 600 600 600
ESP (Pa)
I - 201 165 188 159 - 201 165 188 159
II 48 301 265 288 259 48 301 265 288 259
III 118 401 365 388 359 118 401 365 388 359
IV 198 501 465 488 459 198 501 465 488 459
DDW-H/V
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DDW Double Skin Fan Coil unit
DDW-H (Horizontal)
DDW-H Horizontal Discharge
DDW-H Top Discharge
Hanging holes 4- 15
Condensationwater drain pipe C
Leavingwater pipe D
Leaving water pipe DManual air vent
Condensation waterdrain pipe C
Entering water pipe D
Hanging holes 4- 15
Enteringwater pipe D
Unit: mm
Dimension Width Length Height Return air Supply air Hanging holesConnection pipe
dimension
Entering
water pipe
Condensation
water drain pipe
MODEL W L H F G A B K M N J S E P Q R D C
DDW020H 900 960 600 810 460 298 262 1080 1020 910 150 201 191 85 158 276 R 1-1/2 R 1-1/4
DDW030H 1050 1000 650 960 510 331 289 1230 1170 950 150 207 280 85 158 339 R 1-1/2 R 1-1/4
DDW040H 1080 1100 730 990 590 395 341 1260 1200 1050 150 177 234 85 164 454 R 2 R 1-1/4
DDW050H 1250 1060 730 1160 625 395 341 1430 1370 1010 150 216 317 85 164 454 R 2 R 1-1/4
DDW060H 1320 1150 800 1230 660 471 404 1500 1440 1100 150 243 324 85 164 518 R 2 R 1-1/4
DDW080H 1680 1150 800 1590 660 471 404 1860 1800 1100 150 243 529 85 164 518 R 2 R 1-1/4
Dimensions
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DDW Double Skin Fan Coil unit
DDW-H (Horizontal)
F
L
A 4 0
W A
90
G
1 2 5
B
J
H
6 3
P
DDW-H Horizontal Discharge
Enteringwater pipe D
Leavingwater pipe D
Enteringwater pipe D
Condensation water drain pipe C
Leaving water pipe D
Manual air vent
T
Unit: mm
Dimension Width Length Height Return air Supply
air Hanging holes
Connection
pipe
dimension
Entering
water pipe
Condensation
water drain pipe
MODEL W L H F G A B E T J S P D C
DDW300H 2766 1646 1549 2670 1390 569 569 273 450 352 200 98 R 3 R 1-1/4
DDW350H 2766 1646 1709 2670 1550 569 569 284 450 352 203 98 R 2-1/2 R 1-1/4
DDW400H 2926 1806 1869 2830 1710 638 638 266 500 352 213 98 R 2-1/2 R 1-1/4
DDW450H 2926 1806 2029 2830 1870 638 638 266 500 352 213 98 R 2-1/2 R 1-1/4
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DDWDouble Skin Fan Coil unit
F
AB S
4 0
G
6 3
90 L
N
E
M
W
P Q
R
H
Manual air vent
DDW-V Top Discharge
Leaving
water pipe D
Enteringwater pipe D
Condensation
water drain pipe C
DDW-V (Vertical)
Unit: mm
Dimension Width Length Height Return air Supply air Hanging holesConnection pipe
dimension
Entering
water
pipe
Condensation
water drain
pipe
MODEL W L H F G A B M N S E P Q R D C
DDW040V 980 650 1283 890 655 331 289 960 630 71 444 85 164 518 R 2 R 1-1/4
DDW050V 1140 650 1343 1050 687 395 341 1120 630 84 480 85 164 518 R 2 R 1-1/4
DDW060V 1210 650 1403 1120 740 395 341 1190 630 84 480 85 164 581 R 2 R 1-1/4
DDW080V 1320 810 1613 1230 842 471 404 1300 790 98 517 85 164 708 R 2 R 1-1/4
DDW100V 1390 900 1853 1300 1014 557 478 1370 880 98 574 85 164 835 R 2 R 1-1/4
DDW120V 1530 900 1923 1440 1070 557 478 1510 880 102 639 85 164 899 R 2 R 1-1/4
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14
DDW Double Skin Fan Coil unit
DDW-V (Vertical)
F
A A ET
W
Q
P
M
4 0
B S
H
2 0
G
N
90
6 3
R
L
DDW-V Top Discharge
Leavingwater pipe D
Entering water pipe D
Condensation water drain pipe C
Unit: mm
Dimension Width Length Height Return air Supply air Hanging holesConnection pipe
dimension
Entering
water
pipe
Condensation
water drain
pipe
MODEL W L H F G A B M N S E P Q R D C
DDW150V 2090 900 1673 2000 923 471 404 2070 880 144 167 85 172 756 R 2-1/2 R 1-1/4
DDW180V 2240 900 1923 2150 1035 430 478 2220 880 100 440 85 172 883 R 2-1/2 R 1-1/4
DDW200V 2320 900 1983 2230 1109 557 478 2300 880 98 156 85 172 946 R 2-1/2 R 1-1/4
DDW250V 2670 900 2043 2580 1155 557 478 2650 880 100 156 85 178 997 R 3 R 1-1/4
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DDWDouble Skin Fan Coil unit
G
TB A A
L
ES
W
M
F
P
6 3
H
4 0
6 3
4 0
Condensation
water drain pipe C
Entering
water pipe D
Lveaing
water pipe D
Entering
water pipe D
Leaving
water pipe D
DDW-V (Vertical)
Unit: mm
Dimension Width Length Height Return air Supply air Hanging holes
Connection
pipe
dimension
Entering water
pipe
Condensation
water drain
pipe
MODEL W L H F G A B E T S P D C
DDW300V 2766 1006 2555 2670 1390 569 569 284 450 305 98 R 3 R 1-1/4
DDW350V 2766 1006 2715 2670 1550 569 569 273 450 305 98 R 2-1/2 R 1-1/4
DDW400V 2926 1166 3035 2830 1710 638 638 276 500 357 98 R 2-1/2 R 1-1/4
DDW450V 2926 1166 3195 2830 1870 638 638 267 500 357 98 R 2-1/2 R 1-1/4
DDW-V Top Discharge
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DDW Double Skin Fan Coil unit
Top air discharge of DDW-V fans
Fan Discharge Type
Horizontal air discharge of DDW-H fans
Horizontal Air Discharge For DDW-H
Horizontal Type
Top air discharge for DDW-H fans
Top Air Discharge For DDW-H
Horizontal Type
Top Air Discharge For DDW-V Vertical
Type
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DDWDouble Skin Fan Coil unit
Selection Software
DAIKIN Smart Tools provide customers with more convenient and reliable services
Professional model selection software for air handling units
Convenient graphical user interface
Providing most economic and reasonable combination solutions
Provide different conguration options according to the requirements of the customer
Output the performance table of the unit according to the customer’s requirements
Figuring out the component list and automatically calculate the price of the entire unit
Output units arrangement drawing, development drawing and technical specications
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DDW Double Skin Fan Coil unit
Special Notes
Facing air discharge, if the chilled hot water inlet/outlet is on your left, the unit is L connection. Otherwise,the unit is R connection.
For vertical type unit,refer to the below chart to judge the connection. Please provide unit model, quantity and operating condition when purchasing. Please contact us if any
other specications required.
Figure 1 (Horizontal unit)
Figure 2 (Vertical unit)
Right connection
Leaving air
Left connection
Entering air
Right connection
Left connection
Entering air
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DDWDouble Skin Fan Coil unit
Wiring Diagrams
NOTE:
TO CONNECT ELECTRIC CONTROL DEVICES, PLEASE USE OVER-CURRENT, SHORT CIRCUIT AND OVERHEAT
PROTECTORS.
Motor power input < 11kW Motor power input ≥ 11kW
M
~
U V W
M
~
U2 V2 W2U1 V1 W1
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DDW Double Skin Fan Coil unit
Figure 1 Figure 2
Unit: mm
Installation
Installing DDW
Important Notice
Installation and maintenance are to be performed only by technicians who are familiar with local rules and
regulations, and experienced with this type of equipment.
Make sure that the rated voltage of the power supply conforms to the voltage stated on the unit nameplate.
Cut off all power supplies before mounting or maintaining the unit.
Electric connections must conform to local laws and regulations.
The voltage should uctuate within the range of ± 10% of the rated voltage.
The unit must be well earthed to prevent insulation failures.
All the wires must be securely connected.
The design of water pipes and ducts must conform to the Specications of Heating, Ventilation and Air
Conditioning (GBJ19-87).
DDW Mounting Location
Make sure it is convenient to connect wires and pipes in the selected mounting location. The minimum space
reserved around DDW horizontal units is shown in Figure 1; DDW vertical units are shown in Figure 2.
5 0 0
5 0 0
1 0 0 0
5 0 0
5 0 0
1 0 0 0
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DDW Double Skin Fan Coil unit
Servicing And Maintenance
Notices
Responsibilities And ObligationsThis product comes to you with the DAIKIN service warranty. Only DAIKIN technicians or experienced technicians
authorized by DAIKIN are allowed to install, test or maintain these products.
Using The Unit
After installing the piping system, please rst wash the pipes. To do so, be sure to shut off the valve connected to
the unit, to prevent unwanted things in the pipes from entering the coils or blocking the loop.
After the installation, please check there is anything unwanted inside the fan. Turn the blades by hand. If no
unusual noise is heard, turn on the fan, to see if it is running properly.
Before turning on the water ow, please open the exhaust valve to let the air out of the pipe til l water ows out from
the pipe.
When the unit stops running, ll the coil with water or otherwise keep the pipe from erosion.When the environment temperature falls below 0°C in the winter, drain the pipe to prevent it from freezing.
Clean the coils at regular intervals, to remove the dust from the coils. Clean the scale inside the coils every 2 or 3
years. If possible, use soft water to supply hot/cold water to the coils.
Check the unit lter for dust regularly; if possible, please use a pressure difference detector. Once the resistance
reaches the limit, wash or replace the lter media in time.
After the unit runs for a week, please readjust the V-belt. Afterwards, check the belt every three months.
Servicing And Maintenance
A sound maintenance schedule helps reduce operational failures.
A dirty lter may worsen the performance and air ow of the unit. Thus, replace or wash the lter in time. Be sure
to check the lter every month to see if it is clean enough.Wash the coils with compressed air or water. Brush the coil surface gently with a soft brush or use a vacuum
cleaner to clean the dust.
Do the following on a regular basis:
Clean up the fans every 6 months, to keep them in good balance.
Check and clean the water coils. Check the drain pipe in case dust or unwanted things block the pipes.
Check if the bearing comes loose. If so, x the fastening screw tightly to the bearing.
Clean the dirt in the coils at regular intervals.
Check that the side front of the fan V-belt is ush with the side front of the motor V-belt, to make sure the pulleys
are placed on a at plane. Usually, check using the four-point method (see Figure 5).
Use V-belts of the same brand and model. Never mix old V-belts with new ones. Make sure that the V-belts
match the pulley grooves.Use a tensiometer to check the V-belts, and tighten them properly (see Figure 6).
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DDWDouble Skin Fan Coil unit
Check and adjust the levelness of the V-belt using the four-point method, as shown in Figure 5.
Check the tightness of the V-belt, as shown in Figure 6.
A B C D
Ruler
C e n t e r t o c e n t e r
s p a c i n g
Figure 6
Figure 5
The belt tension indicator acts on the
midpoint of center-to-center spacing
Torture 16mmevery meter
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DDW Double Skin Fan Coil unit
Common Failures
DDW
Common
Failures Locations Possible Causes Solutions
Abnormal
sound
1. Blower
Blower out off center Contact the seller
Loose bearings due to large gap Contact the seller
Blower is loose Contact the seller
Loose connection between bearings Contact the seller
Blower is damaged Contact the seller
The fan fastening screw is loose Fasten the screw
There are unwanted things inside fans. Remove unwanted things
2. Drive
Belt pulley is not fastened on the axis. Fasten the V-shaped belt
V-shaped belt is loose. Adjust after it runs for 48 hours for the
rst time. Adjust the V-shaped belt
V-shaped belt is too tight Adjust the V-shaped beltThe V-shaped belt model is not right Replace the V-shaped belt
V belts are of different lengthReplace V-shaped belts with those of the
same lengthThe V-shaped belt pulley of the fan does not align with that of
the motor Align the belt pulleys
V-shaped belt is damaged Replace the V-shaped belt
The screw xing the motor to the motor base is loose Fasten the screw
3. Bearing
Bearing failure Replace bearings
Lack of lubricant oil Add lubricant oil
The bearing housing is loose Fasten the bearing housing
The bearing is not mounted ush Re-mount the bearing
There are unwanted things inside bearings Remove unwanted thingsBearings are damaged Replace bearings
Bearings are rusty De-rust or replace bearings
4. Fan house
There are unwanted things inside houses Remove the unwanted things
House is loose Contact the seller
Air intake house is damaged Contact the seller
5. Electric appliances
Incoming line is loose Fasten the incoming line
Motor gives AC hum Contact the seller.
Phase lack Supply 3-phase power
6. Axis
Bent or distorted Replace axis
Balance weight is loose Fasten the balance weight
Axis is loose Fasten axis
7. Air speed is too highDuct is too small Re-design the duct
Static pressure has not reached the set static pressure valueChange the V-shaped belt pulley to reduce
the fan speed
8. Periodical vibration
The duct is too small Re-design the duct
System is unstable Adjust the system
Duct vibrates as the fan pulsates Adjust the fan speed
9. Noise caused by hi-
speed wind passing
the aperture & holes
Duct leaks Seal it with glue
10. When blocked,the high-speed air
rattles or howls
Duct turns too sharply Re-design the duct
Duct expands sharply Re-design the duct
Duct shrinks sharply Re-design the duct
Air speed is too high inside the duct Re-design the duct
Damping connector is too tight Re-adjust the damping connector
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DDWDouble Skin Fan Coil unit
Common
failuresLocations Possible causes Solutions
The fan is
functioning
but the air
supply is
insufcient
1. FanBlower is mounted incorrectly Contact the seller
Fan rotates in the opposite direction Regulate the power phase sequence
2. Duct system
Actual resistance in the duct exceeds set resistance. Re-design the system
Duct is poorly sealed Seal with glue
Fireproof valve is shut off Shut on the reproof valve
3. Filter Too dirty or even blocked Clean or replace lter
4. Coil Too dirty or even blocked Clean coil
5. Blocked air supplyThe air inlet and the air outlet are not properly isolated. Thus,
the air runs directly to the air inlet through the separator Add air deector
6. Fan air inlet is
blocked
Elbow at the return air inlet and fan outlet are too close to the
unit wallboardMove the fan
The fan outlet is blocked Remove the obstructions
7. No collimator tube at
the fan outlet
A length of straight tube is mounted at the fan outlet during
fan testing. Without straight tube, the fan performance might
be worsened. Thus, the fan may run faster to offset the
resistance. (Check the fan speed)
Mount collimator tube
8. There’re unwanted
things inside fan
system
The fan outlet is blocked Remove the obstructions
There is an elbow at the fan outlet Re-design duct
The fan is
functioning
but the air
supply is
too large
1. System
Improper duct size Remove the obstructions
The access door is open Close the access door
The system is not well balanced and the actual resistance is
lower than the set resistanceRe-design the system
No air valve or air valve blade Mount wind valve or wind valve blower
Filter falls off Re-mount the lter
2. Duct Return duct leaks Seal it with glue
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● Daikin Industries, Ltd.’s products are manufactured for export to numerous countries throughout the
world. Daikin Industries, Ltd. does not have control over which products are exported to and used in
a particular country. Prior to purchase, please therefore conrm with your local authorized importer,
distributor and/or retailer whether this product conforms to the applicable standards, and is suitable
for use, in the region where the product will be used. This statement does not purport to exclude,
restrict or modify the application of any local legislation.
● Ask a qualied installer or contractor to install this product. Do not try to install the product yourself.
Improper installation can result in water or refrigerant leakage, electrical shock, re or explosion.
● Use only those parts and accessories supplied or specied by Daikin. Ask a qualied installer or
contractor to install those parts and accessories. Use of unauthorized parts and accessories or
improper installation of parts and accessories can result in water or refrigerant leakage, electrical
shock, re or explosion.
● Read the User’s Manual carefully before using this product. The User’s Manual provides important
safety instructions and warnings. Be sure to follow these instructions and warnings.
If you have any enquiries, please contact your local importer, distributor and/or retailer.
Warning
The air conditioners manufactured
by Daikin Industries have received
ISO 9001 series certication for
quality assurance.
Certicate Number. 9601019
The airconditioning factories of
Daikin Industries have received
environmental management system
standard ISO 14001 certication.
Certicate Number. EMS80362
Cautions on product corrosion
1. The units should not be installed in areas where corrosive gases, such as acid gas or alkaline gas, are produced.2. If the unit is to be installed close to the sea shore, direct exposure to the sea breeze should be avoided. If you need to install the
unit close to the sea shore, contact your local distributor.
Head Ofce:
Umeda Center Bldg., 2-4-12, Nakazaki-Nishi,
Kita-ku, Osaka, 530-8323 Japan
http://www.daikin.com/global_ac/
© All rights reserved
Dealer
Literature No : PCUA14 10
http://www.daikin.com/global_ac/http://www.daikin.com/global_ac/