Installation manual
12
EWYQ080~250DAYN
Packaged air-cooled water chillers
4PW35559-1D – 03.2011
A
NNEX
I
Installation examples for a DICN configuration
I
NTRODUCTION
This annex introduces 3 installation examples to help you set up your
Daikin Integrated Chiller Network or DICN configuration.
Refer to
"Connection and setup of a DICN system (option kit
EKACPG)" on page 8
.
E
XAMPLES
Field wiring and wiring parts table
For units with integrated pump, the pump contactor and pump
interlock are already foreseen in the unit.
........Field wiring
........Earth wiring
...........................Terminal on the unit
F1~F20...................Fuses
K1P~K4P ...............Pump contact
L1,L2,L3,N..............Main supply terminals
M1P~M5P ..............Pump motor
R9T ........................Sensor for secondary circuit
S3S ........................Manual switch for pump of master unit
S1S (M,S3).............Remote start/stop switch
S2S ........................Dual setpoint selection switch
Y1S ........................3-way valve
Example 1: Single ring system with 1 pump
Figure 1
shows the system configuration, field wiring and terminals
for field wiring of this example.
Purpose
Purpose of this system is to deliver a constant water flow at a
constant temperature to a particular load. One unit, slave 3 (S3), is
kept as a standby unit.
Setup
■
The system is controlled on entering water temperature.
■
The pump keeps running as long as 1 of the units is ON. After
switching OFF all units, the pump runs for a time indicated by the
PUMPLAG
setting.
■
Slave 3 (S3) is configured to operate when its remote start/stop
switch S1S (S3) is pushed by the operator.
■
Slave 1 (S1), slave 2 (S2) and the master unit (M) are switched
ON or OFF using the remote start/stop switch S1S (M) which is
connected to the master unit.
■
The setpoint can be switched from
INLETSETP1
to
INLETSETP2
using the dual setpoint selection switch S2S
which is connected to the master unit.
Parameter settings of the units
Usersettings menu, submenu
DICN
:
Changeable inputs/outputs must be defined as follows:
Service setting menu, submenu
INPUT OUTPUT
:
Remark
Slave 3 can be configured to start up automatically if:
■
1 of the other units is in alarm or;
■
all other units are running on full capacity and the setpoint is not
reached yet.
To have your slave 3 unit act this way, set its mode to
STANDBY
. In
this case, S1S (S3) has no function.
All field wiring and components must be installed by a
licensed electrician and must comply with relevant
European and national regulations.
The field wiring must be carried out in accordance with the
wiring diagram supplied with the unit and instructions given
below.
Be sure to use a dedicated power circuit. Never use a
power supply shared by another appliance.
All customized settings must be done by a licensed
technician.
NOTE
K*P can also be a 24 V DC or 230 V AC contactor.
Slave 3
Slave 2
Slave 1
Master
MODE
:
DISCONNECT
ON/OFF
NORMAL
NORMAL
NORMAL
PUMP ON IF:
UNIT ON
UNIT ON
UNIT ON
UNIT ON
Slave 3
Slave 2
Slave 1
Master
Terminal 46-47
S2S
DI1
NONE
NONE
NONE
DUAL
SETPOINT
Terminal 48-49
S1S
DI2
REMOTE
ON/OFF
NONE
NONE
REMOTE
ON/OFF
Terminal 50-51
DI3
NONE
NONE
NONE
NONE
Terminal 52-53
DI4
NONE
NONE
NONE
NONE
