Installation manual
1
EWAP400~540MBYNN
Packaged air-cooled water chillers
4PW22678-1B
C
ONTENTS
Page
Technical specifications ............................................................................. 1
Electrical specifications ............................................................................. 1
Options and features ................................................................................. 1
Standard supplied accessories.................................................................. 2
Operation range ................................................................................ 2
Main components.............................................................................. 2
Selection of location .......................................................................... 2
Inspecting and handling the unit ....................................................... 2
Unpacking and placing the unit ......................................................... 3
Important information regarding the refrigerant used........................ 3
Preparing, checking and connecting the water circuit ....................... 3
Connecting the water circuit .............................................................. 4
Water charge, flow and quality .......................................................... 4
Piping insulation ................................................................................ 4
Parts table.................................................................................................. 5
Power circuit and cable requirements ........................................................ 5
Connection of the air-cooled water chiller power supply ........................... 5
Interconnection cables............................................................................... 5
Connection and setup of a DICN system................................................... 5
Cable for remote digital controller .............................................................. 6
Before starting................................................................................... 6
Customization in the service menu ................................................... 7
How to continue................................................................................. 8
Thank you for purchasing this Daikin air conditioner.
I
NTRODUCTION
The Daikin EWAP-MBYNN air-cooled water chillers are designed for
outdoor installation and used for cooling applications only. The units
are available in 3 standard sizes with nominal cooling capacities
ranging from 400 to 540 kW.
The EWAP units can be combined with Daikin fan coil units or air
handling units for air conditioning purposes. They can also be used
for supplying chilled water for process cooling.
The present installation manual describes the procedures for
unpacking, installing and connecting the EWAP units.
Technical specifications
(1)
Options and features
Options
■
Suction stop valve
■
Ampere and voltmeter
■
Main isolator switch
■
Dual pressure relief valve on the condenser
■
Low noise operation
■
Condenser protection grills
■
BMS Connection (MODBUS/J-BUS, BACNET, LON)
■
Inverter fans
■
Heat recovery
■
High ESP fans
Features
■
Stepless capacity control (15%~100%)
■
Evaporator heater tape
■
Glycol application for leaving evaporator water down to –10°C
■
Daikin Integrated Chiller Network (DICN)
■
Low ambient operation (–15°C)
■
Liquid line solenoid valve
■
Sight glass with moisture indication
■
Voltage free contacts
•
general operation/pumpcontact
•
alarm
•
operation circuit 1
•
operation circuit 2
■
Changeable voltage free contacts
•
100% unit signal
•
second evaporator pump
•
free cooling contact
■
Changeable remote inputs
•
remote start/stop
•
dual setpoint
•
enable/disable capacity limitation
(2)
EWAP400MBYNN
EWAP460MBYNN
EWAP540MBYNN
Packaged air-cooled water chillers
Installation manual
READ THIS MANUAL ATTENTIVELY BEFORE STARTING
UP THE UNIT. DO NOT THROW IT AWAY. KEEP IT IN
YOUR FILES FOR FUTURE REFERENCE.
IMPROPER INSTALLATION OR ATTACHMENT OF
EQUIPMENT OR ACCESSORIES COULD RESULT IN
ELECTRIC SHOCK, SHORT-CIRCUIT, LEAKS, FIRE OR
OTHER DAMAGE TO THE EQUIPMENT. BE SURE ONLY
TO USE ACCESSORIES MADE BY DAIKIN WHICH ARE
SPECIFICALLY DESIGNED FOR USE WITH THE
EQUIPMENT AND HAVE THEM INSTALLED BY A
PROFESSIONAL.
IF UNSURE OF INSTALLATION PROCEDURES OR USE,
ALWAYS CONTACT YOUR DAIKIN DEALER FOR
ADVICE AND INFORMATION.
(1) Refer to the engineering data book for the complete list of specifications,
options and features.
Model EWAP
400
460
540
Refrigerant
R407C
Dimensions HxWxD
(mm)
2250x5901x2238
Weight
• machine weight
(kg)
4842
4965
5088
• operation weight
(kg)
4916
5046
5176
Connections
• water inlet
Ø5" OD (141.3 mm OD)
• water outlet
Ø5" OD (141.3 mm OD)
Model EWAP
400
460
540
Power circuit
• Phase
(kg)
3~
• Frequency
(Hz)
50
• Voltage
(V)
400
• Voltage tolerance
(%)
±10
(2) Can be used for night set back and/or peak power limitation: A kWh-gauge
is connected to a voltage free contact. If the contact is enabled, the circuit
will be limited to a preset capacity step.