Daikin EWWD120MBYNN User manual

OPERATION MANUAL
EWWD120MBYNN
EWWD180MBYNN
EWWD240MBYNN
EWWD280MBYNN
EWWD360MBYNN
EWWD440MBYNN
EWWD500MBYNN
EWWD520MBYNN
EWWD540MBYNN
Packaged water-cooled water chillers

Operation manual
1EWWD120~540MBYNN
Packaged water-cooled water chillers
4PW22685-1
CONTENTS Page
Introduction ....................................................................................... 1
Technical specifications ............................................................................. 1
Electrical specifications ............................................................................. 2
Description ........................................................................................ 3
Function of the main components.............................................................. 4
Safety devices............................................................................................ 5
Internal wiring - Parts table........................................................................ 5
Before operation................................................................................ 6
Checks before initial start-up ..................................................................... 6
Water supply.............................................................................................. 7
Power supply connection and crankcase heating...................................... 7
General recommendations ........................................................................ 7
Operation .......................................................................................... 7
Digital controller......................................................................................... 7
Working with the unit ................................................................................. 8
Advanced features of the digital controller............................................... 11
Troubleshooting............................................................................... 17
Maintenance.................................................................................... 20
Maintenance activities ............................................................................. 20
Disposal requirements............................................................................. 20
INTRODUCTION
This operation manual concerns packaged water-cooled water
chillers of the Daikin EWWD-MBYNN series. These units are
provided for indoor installation and used for cooling applications. The
EWWD units can be combined with Daikin fan coil units or air
handling units for air conditioning purposes. They can also be used
for supplying water for process cooling.
This manual has been prepared to ensure adequate operation and
maintenance of the unit. It will tell you how to use the unit properly
and will provide help if problems occur. The unit is equipped with
safety devices, but they will not necessarily prevent all problems
caused by improper operation or inadequate maintenance.
In case of persisting problems contact your local Daikin Dealer.
Technical specifications(1)
EWWD120MBYNN EWWD280MBYNN EWWD500MBYNN
EWWD180MBYNN EWWD360MBYNN EWWD520MBYNN
EWWD240MBYNN EWWD440MBYNN EWWD540MBYNN Packaged water-cooled water chillers Operation manual
READ THIS MANUAL ATTENTIVELY BEFORE STARTING
UP THE UNIT. DO NOT THROW IT AWAY. KEEP IT IN
YOUR FILES FOR FUTURE REFERENCE.
Before starting up the unit for the first time, make sure that
it has been properly installed. It is therefore necessary to
carefully read the installation manual supplied with the unit
and the recommendations listed in "Checks before initial
start-up" on page 6.
(1) Refer to the engineering data book for the complete list of specifications.
General EWWD 120 180 240
Dimensions HxWxD (mm) 1014x2672x930
Weight
• machine weight (kg) 1000 1273 1527
• operation weight (kg) 1032 1318 1588
Connections
• chilled water inlet
and outlet(a) (inch) 3" OD
(76 mm OD) 3" (88.9 mm OD)
• condenser water inlet
and outlet(a) (inch) 2-1/2" 3" (88.9 mm OD)
• pressure relief valve
condenser (inch) 1x 1" 1x 1" 2x 1"
Compressor
Type semi-hermetic single screw
Qtyxmodel
1x
ZHA5LMGUYE 1x ZHA7MSGUYE 1x ZHA7WSGUYE
Speed (rpm) 2880
Oil type FVC 68D
Oil charge volume (l) 7.5+0.5
–0 10+0.5 –0 10+0.5 –0
Condensor
Type shell & tube
Qty x model 1x CDEW215 1x CDEW260 1x CDEW400
Evaporator
Type brased plate heatexchanger
Qtyxmodel 1x AC120EQ-NP156 1x AC250EQ-NP96 1x AC250EQ-NP128
General EWWD 280 360 440
Dimensions HxWxD (mm) 1014x2672x
930 2000x2672x930
Weight
• machine weight (kg) 1623 2546 2800
• operation weight (kg) 1693 2636 2906
Connections
• chilled water inlet
and outlet(a) (inch) 3"
(88.9 mm OD) 2x 3" (2x 88.9 mm OD)
• condenser water inlet
and outlet(a)
(a) Victaulic®coupling
(inch) 3"
(88.9 mm OD) 2x 3" (2x 88.9 mm OD)
• pressure relief valve
condenser (inch) 2x 1" 2x 1" 3x 1"
Compressor
Type semi-hermetic single screw
Qtyxmodel
1x
ZHA9LSGUYE 2x ZHA7MSGUYE
1xZHA7MSGUYE+
1x ZHA7WSGUYE
Speed (rpm) 2880
Oil type FVC 68D
Oil charge volume (l) 14+0.5
–0 2x 10+0.5 –0
2x 10
+0.5
–0
Condensor
Type shell & tube
Qtyxmodel 1x CDEW450 2x CDEW260 1x CDEW400
1x CDEW260
Evaporator
Type brased plate heatexchanger
Qtyxmodel 1x AC250EQ-NP162 2x AC250EQ-NP96 1x AC250EQ-NP96
1x AC250EQ-NP128

EWWD120~540MBYNN
Packaged water-cooled water chillers
4PW22685-1
Operation manual
2
Electrical specifications(1)
General EWWD 500 520 540
Dimensions HxWxD (mm) 2000x2672x930
Weight
• machine weight (kg) 3034 3150 3346
• operation weight (kg) 3156 3281 3485
Connections
• chilled water inlet
and outlet(a) (inch) 2x 3" (2x 88.9 mm OD)
• condenser water inlet
and outlet(a)
(a) Victaulic®coupling
(inch) 2x 3" (2x 88.9 mm OD)
• pressure relief valve
condenser (inch) 4x 1"
Compressor
Type semi-hermetic single screw
Qtyxmodel
2x
ZHA7WSGUYE
1x ZHA7WSGUYE+
1x ZHA9LSGUYE
2x
ZHA9LSGUYE
Speed (rpm) 2880
Oil type FVC 68D
Oil charge volume (l) 2x 10+0.5
–0 10+0.5 –0 +14+0.5 –0 2x 14+0.5 –0
Condensor
Type shell & tube
Qtyxmodel 2x CDEW400 1x CDEW400
1x CDEW450 2x CDEW450
Evaporator
Type brased plate heatexchanger
Qtyxmodel 2x AC250EQ-NP128 1x AC250EQ-NP128
1x AC250EQ-NP162 2x AC250EQ-NP162
(1) Refer to the engineering data book for the complete list of specifications.
Model EWWD 120 180 240 280 360 440 500 520 540
Power supply
• Phase 3~
•Frequency (Hz) 50
•Voltage (V) 400
•Voltage tolerance (%) ±10
Unit
• Nominal running
current (A) 48 78 108 118 156 186 216 226 236
• Maximum running
current (A) 76 120 174 184 240 294 348 358 368
• Recommended fuses
according to IEC 269-2 (gL)
3x 100 3x 160 3x 200 3x 200 2x 3x 200 3x 200+3x 250 2x 3x 250 2x 3x 250 2x 3x 250
Compressor
• Phase 3~
•Frequency (Hz) 50
•Voltage (V) 400
• Nominal running current (A) 48 78 108 118 78+78 78+108 108+108 108+118 118+118
Control and fan motor
• Phase 1~
•Frequency (Hz) 50
•Voltage (V) 230

Operation manual
3EWWD120~540MBYNN
Packaged water-cooled water chillers
4PW22685-1
DESCRIPTION
The EWWD water-cooled water chillers are available in 9 standard sizes.
Figure - Main components
1 25431126
11 3 1
452
1000
850
500
600
700
900
30 29 12
17
14
21 20 28
30 29
29 1324 22 252327
28
23
22
12
13
10
10
178
89
9
14
19
19
7
26
6
67
29
18
9
16
15
15
24
300
EWWD120~280
EWWD360~540
1Compressor 17 Leaving water temperature sensor
2Evaporator 18 Discharge stopvalve
3Condenser 19 Condensor entering water temperature sensor
4Switchbox 20 Digital display controller
5Compressor switchbox 21 Emergency stop
6Air purge condenser 22 Power supply intake
7Water drain condenser 23 Field wiring intake
8Charge valve 24 Holes for lifting
9Safety valve 25 Transportbeam
10 High pressure switch 26 Ballvalve liquid pipe
11 Drier 27 Main isolator switch (optional)
12 Chilled water in (Victaulic®coupling) 28 Filter
13 Chilled water out (Victaulic®coupling) 29 Counterpipe for welding
14 Condenser water out 30 Flowswitch
15 Condenser water in
16 Entering water temperature sensor Required space around the unit for service

EWWD120~540MBYNN
Packaged water-cooled water chillers
4PW22685-1
Operation manual
4
Function of the main components
Figure - Functional diagram
As the refrigerant circulates through the unit, changes in its state or
condition occur. These changes are caused by the following main
components:
■Compressor
The compressor (M*C) acts as a pump and circulates the
refrigerant in the refrigeration circuit. It compresses the refri-
gerant vapour coming from the evaporator at the pressure at
which it can easily be liquefied in the condenser.
■Condenser
The function of the condenser is to change the state of the
refrigerant from gaseous to liquid. The heat gained by the gas in
the evaporator is discharged through the condenser to the
ambient air, and the vapour condenses to liquid.
■Filter / drier
The filter installed behind the condenser removes small particles
from the refrigerant to prevent blockage of the tubes.
The drier takes water out of the system.
■Expansion valve
The liquid refrigerant coming from the condenser enters the
evaporator via an expansion valve. The expansion valve brings
the liquid refrigerant to a pressure at which it can easily be
evaporated in the evaporator.
■Evaporator
The main function of the evaporator is to take heat from the
water that flows through it. This is done by turning the liquid
refrigerant, coming from the condenser, into gaseous
refrigerant.
■Water in/outlet connection
The water inlet and outlet connection allow an easy connection
of the unit to the water circuit of the air handling unit or industrial
equipment.
■Flowswitch
The flowswitch protects the evaporator of the unit against
freezing when there is no waterflow or when the waterflow is too
low.
■Waterfilter
The waterfilter protects the evaporator against clogging.
S1PH S14PH
R3T
R4T
R5T
Y11S
M1C
Y15S
B2P
Y16S
10
S3T
S15PH
S2PH
R6T
Y21S
M2C
Y25S
B5P
Y26S
S4T
28
7
956
(*)
(**) (***)
11
F
11
G
11 11
H
11
11
J
33
44
EWWD120~280
EWWD360~540
15 16
B1P
12
AB4P
12
D
B1P
12
C
R9T
14
B3P
B
R10T
14
B6P
E
1
(*)
1313 13 13 13
1Evaporator 12 Expansion valve (*) See A~E
2Condenser 13 Suction stop valve (option) (**) - Standard
(see F and G) only for EWWD120~180,360
- Dual pressure relief valve (OP03)
(see H and J) only for EWWD240~280)
3Water out 14 Electronic expansion valve
4Water in 15 Flowswitch
5Drier 16 Filter
6Discharge stop valve (***) - Standard
(see F and G) only for EWWD360 and 440
- Dual pressure relief valve (OP03)
(see H and J) only for EWWD500~540)
7Charge valve Aonly for EWWD120~180
8Stop valve Bonly for EWWD240~280, EWWD440~540
9Strainer Conly for EWWD360
10 Sightglass Donly for EWWD440
11 Safety valve Eonly for EWWD500~540