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Daikin EUWA15HDW15 [9/18] Advanced features of the digital controller
![Daikin EUWA15HDW15 [9/18] Advanced features of the digital controller](/views2/1680861/page9/bg9.png)
8
Resetting the unit
The units are equipped with two kinds of safety devices: unit safeties
(reverse phase protector and flowswitch) and circuit safeties.
When a unit safety occurs, all compressors are shut down. The
safeties menu will indicate that the reverse phase protector is
activated or that the flow has stopped (flowswitch activated). The
CIRCUITS STATUS screen of the readout menu will indicate OFF -
SAFETY ACTIVE for all circuits. The red LED inside the
g
key lights
up and the buzzer inside the controller is activated.
When a circuit safety occurs, the compressor of the corresponding
circuit is shut down. The CIRCUITS STATUS screen of the readout menu
will indicate OFF - SAFETY ACTIVE for the circuit concerned. The red
LED inside the
g
key lights up and the buzzer inside the controller
is activated.
If the unit has been shut down due to a power failure, it will carry out
an autoreset and restart automatically when the electrical power is
restored.
To reset the unit, proceed as follows:
1 Press the
g
key to acknowledge the alarm.
The buzzer is de-activated.
The controller automatically switches to the corresponding screen
of the safeties menu: unit safety or circuit safety.
2 Find the cause of shutdown and correct.
Refer to "Listing activated safeties and checking the unit status"
and the chapter "Trouble shooting".
When a safety can be reset, the LED under the
g
key starts
blinking.
3 Press the
g
key to reset the safeties that are no longer active.
Once all safety devices are disactivated and reset, the LED under
the
g
key goes out. If one of the safeties is still active, the LED
under the
g
key goes on again. In this case, return to instruction 2.
4 If a unit safety occurred or if all circuits were shut down due to
circuit safeties, switch on the unit using the
f
key.
If the user shuts down the power supply in order to repair a
safety, the safety will automatically be reset after power-up.
Note The history information, i.e. the number of times a unit
safety or a circuit safety occurred and the unit status at the
moment of shutdown, can be checked by means of the
history menu.
Advanced features of the digital controller
This chapter gives an overview and a brief functional description of
the screens provided by the different menus. In the following
chapter, you will find how you can set up and configure the unit using
the various menu functions.
All menus are directly accessible using the corresponding key on
the digital controller. The down arrow z on the display indicates that
you can go to the next screen of the current menu using the
x
key. The up arrow a on the display indicates that you can go to the
previous screen of the current menu using the
w
key. If e is
displayed, this indicates that you can either return to the previous
screen or can go to the next screen.
Readout menu –
aa
aa
a
The controller automatically enters the "readout menu" after startup.
It provides the following screens:
z
MANUAL / COOLING
INLET WATER : + 18.0°C
AMBIENT : + 22.3°C
THERM. STEP : 3 / 3
e
OUTLET WATER TEMP
OUTL. WATER 1 : + 13.2°C
OUTL. WATER 2 : + 12.5°C
OUTL. WATER 3 : + 12.8°C
a
CIRCUITS STATUS
C1 : OFF - FREEZE UP DIS
C2 : ON - COOLING
C3 : OFF - SAFETY ACTIVE
Setpoints menu –
zz
zz
z
To consult actual operational informa-
tion about the control and operation
mode, the inlet water and ambient
temperature and the thermostat step.
To consult information about the outlet
water temperature of the different
circuits.
To consult information about the circuits
status.
Depending upon the settings in the user settings menu, the
"setpoints" menu can either be entered directly or by means of the
user password.
SETP. COOL 1 : +12.5°C
> SETP. COOL 2 : +18.0°C
To define and to select the temperature
setpoint.
User settings menu –
ee
ee
e
The "user settings" menu, protected by the user password, allows a
full customization of the units.
z REMOTE CONTROL
REMOTE ON / OFF : Y
BMS INSTALLED : N
To activate or de-activate the remote
on/off control.
To indicate if a BMS card is installed or
not installed.
e
MANUAL SETTINGS
FANSPEED : MEDIUM
C1 : ON C2 : OFF C3 : OFF
PRESENT MODE : MANUAL
e
THERM. SETTINGS
STEPS : 2 STPL. : 0.8°C
STEPDIFFERENCE : 0.5°C
LOADUP:000 s - DWN : 000 s
e
BMS SETTINGS
BMS CONTROL ALLOWED : Y
ADDR. PCB : 01
PROTOCOL : CAREL
To define the manual settings and to
activate or de-activate manual control
mode.
To define the thermostat settings.
To define the BMS settings.
This screen will only be displayed if the
optional BMS address card is installed.
e
BMSBOARD SETTINGS
SERIAL BOARD: RS485
BAUDRATE : 19200 bps
To define the BMS board-settings. This
screen will only be displayed if the
optional BMS address card is installed.
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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