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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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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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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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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.



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


FPI 12

Working pressure (MPa) 1.6

Entering/Leaving

water pipeR2 R2 R2-1/2 R2-1/2 R2-1/2 R3


Copper pipie diameter (mm) 12.7

Fan


Drive type V-belt

Fan disdcharge orientation Lower horizontal discharge/Top discharge

Motor

Power source 380V/3N~/50Hz


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)


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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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


FPI 12


Entering/Leaving

water pipeR3 R2-1/2 R2-1/2 R2-1/2


Copper pipie diameter

(mm)12.7

Fan


Drive type V-belt

Fan disdcharge

orientationHorizontal discharge /Top discharge

Motor



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)


Thickness (mm) 21


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:




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;



SELECTION SOFTWARE.





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DDW-V (Vertical)

NOTES:




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;



SELECTION SOFTWARE.


5) MODEL DDW040~250V ARE WITHOUT FRAME; DDW300~450V ARE WITH FRAME TYPE.


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


Entering/Leaving

water pipeR2 R2 R2 R2 R2 R2 R2-1/2



Fan


Drive type V-belt

Fan disdcharge orientation Top discharge

Motor



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)


Thickness (mm) 21


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-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


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


FPI 12


Entering/Leaving

water pipeR2-1/2 R2-1/2 R3 R3 R2-1/2 R2-1/2 R2-1/2



Fan


Drive type V-belt

Fan disdcharge orientation Top discharge

Motor



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)


Thickness (mm) 21


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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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-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-H (Horizontal)

F

L

A 4 0

W A

90

G

1 2 5

B

J

H

6 3

P

DDW-H Horizontal Discharge


Leavingwater 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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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


Condensation

water drain pipe C

DDW-V (Vertical)

Unit: mm


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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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

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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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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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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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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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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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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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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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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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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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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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/

ED-DDW-201401B

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