![Daikin EUWA20HDW15 Инструкция по эксплуатации онлайн [12/18] 535209](/img/pdf.png)
Daikin EUWA20HDW15 Инструкция по эксплуатации онлайн [12/18] 535209
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11
To define the thermostat settings, proceed as follows:
1 Enter the user settings menu and press the
x
key twice to
go to the THERMOSTAT SETTINGS screen.
If the controller is already in the user settings menu, position the
cursor in the upper left corner of the actual screen using the
e
or
j
key and go to the THERMOSTAT SETTINGS screen using the
h
key.
2 Position the cursor behind the parameter to be modified using
the
j
key.
3 Select the appropriate setting using the
h
key.
4 Press
j
to confirm or
e
to cancel the modification.
When the modification has been confirmed, the cursor switches to
the next parameter which can now be modified. When the
modification has been cancelled, the cursor returns to the upper
left corner of the screen.
5 Repeat from instruction 2 onwards to modify the other
parameters.
Note A functional diagram showing the thermostat parameters
can be found in annex I.
Defining the BMS settings
(only if the optional BMS-card is installed and the
BMSCARDINSTALLED - parameter is set to Y)
The BMS parameters allowing communication between the unit and
the supervisory system can be modified via the BMS SETTINGS screen
and BMSBOARD SETTINGS screen of the user settings menu. The BMS
parameters are:
BMS SETTINGS screen:
■ BMS CONTROL ALLOWED : if set to Y (yes), the unit can be
commanded and configured from a supervisory system. If set
to N(no), the supervisory system can only read out values but
cannot modify them.
■ ADDR.PCB : used to address the PCB.
■ PROTOCOL : indicates the communication protocol. If the Daikin
optional gateway is used to connect the units to a supervisory
system, the protocol is CAREL.
BMSBOARD SETTINGS screen:
■ SERIAL BOARD : indicates the type of serial connection. The
default is set to RS485.
■ BAUD RATE : indicates the speed of communication. The default
setting of 19200 bps must be used when the Daikin optional
gateway is connected.
To define the BMS or BMS-board settings, proceed as follows:
1 Enter the user settings menu and press the
x
key three
times to go to the BMS SETTINGS screen or four times to go to the
BMSBOARDSETTINGS screen.
If the controller is already in the user settings menu, position the
cursor in the upper left corner of the actual screen using the
e
or
j
key and go to the BMS SETTINGS or BMSBOARDSETTINGS screen
using the
h
key.
2 Position the cursor behind the parameter to be modified using
the
j
key.
3 Select the appropriate setting using the
h
key.
4 Press
j
to confirm or
e
to cancel the selection.
When the selection has been confirmed, the cursor switches to the
next parameter which can now be modified. When the selection
has been cancelled, the cursor returns to the upper left corner of
the screen.
5 Repeat from instruction 2 to modify the other parameters.
Activating or de-activating the setpoints password
The SETPOINT PASSWORD screen of the user settings menu allows the
user to activate or de-activate the user password needed to change
the temperature setpoint. When de-activated, the user does not
have to enter the password each time he wants to change the
setpoint.
To activate or de-activate the setpoints password, proceed as
follows:
1 Enter the user settings menu and press the x key four times
to go to the SETPOINT PASSWORD screen.
If the controller is already in the user settings menu, position the
cursor in the upper left corner of the actual screen using the
e
or
j
key and go to the SETPOINT PASSWORD screen using the
h
key.
The question PASSWORD NEEDED TO CHANGE SETPOINT appears.
2 Press
j
to start the modification.
The cursor blinks behind the question.
3 Select Y or N using the
h
key.
4 Press
j
to confirm or press
e
to cancel the selection.
In both cases the cursor returns to the upper left corner of the
screen.
Calibrating the inlet water temperature sensor
In order to measure the inlet water temperature accurately, it is
possible to add an offset value to the measured temperature.
The default, limit and step values are:
Lower Upper
limit limit Step Default
-2.0°C +2.0°C 0.1°C 0.0°C
To change the offset value, proceed as follows:
1 Enter the user settings menu.
If the controller is already in the user settings menu, position the
cursor in the upper left corner of the actual screen using the
e
or
j
key and go to the SENSOR ACCURACY screen using the
h
key.
2 Position the cursor behind the offset value using the
j
key.
3 Select the appropriate setting using the
h
key.
4 Press
j
to confirm or
e
to cancel the modification.
When the modification has been confirmed or has been cancelled,
the cursor returns to the upper left corner of the screen.
Tasks of the timers menu
Checking the actual value of the software timers
As a protective measure and to ensure correct operation, the
controller's software features several countdown timers:
■ LOADUP (LOADUP – refer to the thermostat parameters): starts
counting when a thermostat step change has occurred. During
the countdown, the unit is not able to enter a higher thermostat
step.
Содержание
- Operation manual 1
- Packaged air cooled water chillers 1
- Electrical specifications 1 2
- Ntroduction 2
- Ontents 2
- Operation manual 2
- Technical specifications 1 2
- Escription 3
- Euwa20 3
- Euwa25 3
- Function of the main components 4
- Safety devices 4
- Internal wiring parts table 5
- Measuring devices 5
- Checks before initial start up 6
- Efore operation 6
- General recommendations 6
- Power supply connection and crankcase heating 6
- Water supply 6
- Digital controller 7
- Peration 7
- Working with the unit 7
- Adjusting the temperature setpoint 8
- Consulting actual operational information 8
- Enter the readout menu using the a key 8
- Enter the setpoints menu using the z key 8
- If the manual control mode is selected refer to the user settings menu none of the above mentioned setpoints will be active 8
- If the remote on off control parameter is set to no 8
- If the remote on off control parameter is set to yes 8
- If the unit does not start after a few minutes consult the readout menu which gives the status of the different circuits refer to paragraph consulting actual operational information also refer to the chapter trouble shooting 8
- Press j to save the adjusted temperature setpoint or press the z key to cancel the modification 8
- Press the f key on the controller 8
- Press the f key on the controller or switch the unit off using the remote on off switch 8
- Press the h key to adjust the temperature setting 8
- Press the w key to return successively to the second and the first screen of the readout menu 8
- Press the x key to enter the second screen of the readout menu 8
- Press the x key to enter the third screen of the readout menu 8
- Select the setpoint to be adjusted using the j key 8
- Setp cool 1 inlet water temperature cooling setpoint 1 8
- Setp cool 2 inlet water temperature cooling setpoint 2 8
- Switching the unit off 8
- The pressures measured will vary between a maximum and minimum value depending on the water and outdoor temperatures at the moment of measurement 8
- The selection between setpoint 1 and 2 is done by a remote dual setpoint switch to be installed by the customer the actual active setpoint can be consulted in the readout menu 8
- The unit provides definition and selection of two independent temperature setpoints for cooling operation 8
- To adjust a setpoint proceed as follows 8
- To adjust other setpoints repeat from instruction 2 onwards 8
- Advanced features of the digital controller 9
- History menu t t t t t 10
- Info menu y y y y y 10
- Input output menu u u u u u 10
- Safeties menu g g g g g 10
- The history menu contains all the information concerning the latest shutdowns 10
- The input output menu gives the status of all the digital inputs and the relay outputs of the unit 10
- The safeties menu provides useful information for trouble shooting purposes 10
- Timers menu r r r r r 10
- To calibrate the sensor for inlet water temperature measurement 10
- To change the user password 10
- To check the actual value of the compressor timers 10
- To check the actual value of the general software timers 10
- To check the status of circuit 1 at activation of one of the circuits safeties 10
- To check the status of circuit 2 at activation of one of the circuits safeties 10
- To check the status of circuit 3 at activation of one of the circuits safeties 10
- To check the status of the alarm the operation and the pump voltage free contacts 10
- To check the status of the circuit safeties 10
- To check the status of the evaporator heater however the evaporator heater option is not offered by daikin 10
- To check the status of the fanspeed relays 10
- To check the status of the flowswitch 10
- To check the status of the low pressure bypass switches 10
- To check the status of the remote setpoint selection switch the remote on off switch and the reverse phase protector 10
- To check whether or not the different compressors are activated 10
- To consult additional information about the unit such as the unit name the refrigerant used and the manufacturing number 10
- To consult information about the controller s software version 10
- To consult information about the number of circuit 1 shutdowns and the circuit status at the most recent shutdown 10
- To consult information about the number of circuit 2 shutdowns and the circuit status at the most recent shutdown 10
- To consult information about the number of circuit 3 shutdowns and the circuit status at the most recent shutdown 10
- To consult information about the number of shutdowns the unit safety which caused the most recent shutdown and the unit status at this shutdown 10
- To consult information about the unit safety which caused the shutdown and to check the unit status at shutdown 10
- To consult the outlet water inlet water and ambient temperature limits 10
- To define whether or not a password is needed to change the temperature setpoint 10
- User password menu q q q q q 10
- When automatic control mode is selected the unit uses default a 2 step thermostat to control the cooling load however the thermostat parameters are not fixed and can be modified via the thermostat settings screen of the user settings menu 11
- Rouble shooting 14
- Aintenance 17
- Disposal requirements 17
- Maintenance activities 17
- Thermostat parameters 17
- Pwen09719 1b 18
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