Daikin EWWD120MBYNN, Operation Manual

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Operation manual
1
EWWD120~540MBYNN
Packaged water-cooled water chillers
4PW22685-1
C
ONTENTS
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
I
NTRODUCTION
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
1x ZHA
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