![Daikin EWWD360MBYN [17/24] Checking the safety info and the unit status after a reset](/img/pdf.png)
Daikin EWWD360MBYN [17/24] Checking the safety info and the unit status after a reset
![Daikin EWWD360MBYN [17/24] Checking the safety info and the unit status after a reset](/views2/1662029/page17/bg11.png)
EWWD120~540MBYNN
Packaged water-cooled water chillers
4PW22685-1B
Operation manual
16
To check the actual value of the software timers, proceed as follows:
1 Enter the
. (Refer to the chapter "How to enter a
menu" on page 8.)
The controller displays the actual value of the
: the loadup timer, the loaddown timer, the flowstart
timer, the flowstop timer (when the unit is on and the flowstart
timer has reached zero), the pumplead timer and the pumplag
timer.
2 Press the h key to check the compressor timers.
The controller shows the actual value of the
: the guard timers (one per circuit) and the antirecycling
timers (one per circuit).
3 Press the h key to check the remaining timers.
The controller shows the actual value of the
.
Tasks of the safeties menu
Listing activated safeties and checking the unit status
If the alarm buzzer is activated and the user presses the p key, the
controller automatically enters the safeties menu.
■ The controller will enter the
screen of the safeties
menu when a unit safety was the cause of shutdown.
■ The controller will enter the
or
screen of the safeties menu when a safety of the circuit was
activated.
■ For a DICN system, the controller can also show:
. This occurs when the wrong
number of slave units is defined (refer to "Defining the network
settings" on page 15) or when a slave unit is missing (because
of bad connection or power supply failure).
Make sure to define the correct number of slave units and to
make correct connections.
■ When the unit is configured with a dual evaporator pump, the
controller will enter the
screen of the
safeties menu when a safety on the pump was the cause of
shutdown.
1 Press the p key when the alarm buzzer is activated.
The appropriate safety screen with the basic information
appears. Press the q key to see the detailed information. These
screens provide information about the unit status at the moment
of shutdown (see "Safeties menu" on page 12).
2 If more than one kind of safety is active (indicated by means of
W, X or C), use the g and h keys to consult them.
Tasks of the history menu
Checking the safety info and the unit status after a reset
The information available in the safeties menu is also stored in the
history menu, where it is stored after resetting the unit or the circuit.
In this way, the history menu provides a means of checking the unit
status at the moment of the latest shutdown.
To check the safety info and the unit status, proceed as follows:
1 Enter the
. (Refer to the chapter "How to enter a
menu" on page 8.)
The controller enters the last
screen which contains
basic information of the moment of this shutdown.
2 Press the g and h keys to consult the other present
screens.
3 Press the q key to see the detailed information.
Tasks of the info menu
Consulting additional unit information
1 Enter the
through the main menu. (Refer to the
chapter "How to enter a menu" on page 8).
The controller enters the
screen which
contains the following information: the time and date.
2 Press h to consult the first
screen.
This screen contains information about the unit name and the
refrigerant used.
3 Press h to consult the next
screen.
This screen contains information about the controller's software
version.
4 Press h to consult the
screen.
This screen contains information about the PCB.
Tasks of the input/output menu
Checking the status of the inputs and outputs
The input/output menu provides a means of checking the status of
the digital inputs and the status of the relay outputs.
The locked digital inputs are:
■
: whether the emergency button has been
pressed.
■
: indicates the status of the flowswitch: activated or
deactivated.
■
: indicates the actual status of this
safety.
■
: indicates the actual status of
this safety.
■
: indicates the actual status
of this safety.
■
: indicates the actual status of this safety.
■
: indicates the actual
status of this safety.
■
: indicates the actual
status of this safety.
The changeable digital inputs are:
■
#%
: indicates the position of the "enable/
disable capacity limitation" switch.
■
: indicates the position of the remote dual
setpoint switch: setpoint 1 or setpoint 2.
■
: indicates the position of the remote on/off switch.
■
: indicates the position of the connected switch.
The locked relay outputs are:
■
: indicates whether circuit 1/2 is on/off.
■
: indicates whether circuit 1/2 is in
starmode or not.
■
: indicates whether circuit 1/2 is in
deltamode or not.
■
+
: indicates if the 12% capacity valve of circuit 1/2
is activated.
■
: indicates if the UP of the capacity control motor of
circuit 1/2 is activated.
■
: indicates if the DWN of the capacity control
motor of circuit 1/2 is activated.
■
: indicates the FEEDBACK of the potentiometer
of circuit 1/2 (Ω).
■
: indicates the status of this voltage free contact.
It is activated if the pump should be ON.
■
: indicates the status of this voltage free contact. It
is activated if there is any alarm on the unit.
NOTE
You can check the "found" slave units in the 2nd
screen of the network menu.
Содержание
- Operation manual 1
- Packaged water cooled water chillers 1
- Introduction 2
- Operation manual 2
- Technical specifications 2
- Electrical specifications 3
- Electrical specifications 3
- Gwp global warming potential 3
- Important information regarding the refrigerant used 3
- Periodical inspections for refrigerant leaks may be required depending on european or local legislation please contact your local dealer for more information 3
- Refrigerant type r134a 3
- This product contains fluorinated greenhouse gases covered by the kyoto protocol 3
- Value 1300 3
- Description 4
- Escription 4
- As the refrigerant circulates through the unit changes in its state or condition occur these changes are caused by the following main components 5
- Compressor the compressor m c acts as a pump and circulates the refrigerant in the refrigeration circuit it compresses the refri gerant vapour coming from the evaporator at the pressure at which it can easily be liquefied in the condenser 5
- Condenser the function of the condenser is to change the state of the refrigerant from gaseous to liquid the heat gained by the gas in the evaporator is discharged through the condenser to the ambient air and the vapour condenses to liquid 5
- Evaporator the main function of the evaporator is to take heat from the water that flows through it this is done by turning the liquid refrigerant coming from the condenser into gaseous refrigerant 5
- Expansion valve the liquid refrigerant coming from the condenser enters the evaporator via an expansion valve the expansion valve brings the liquid refrigerant to a pressure at which it can easily be evaporated in the evaporator 5
- Figure 5
- Filter drier the filter installed behind the condenser removes small particles from the refrigerant to prevent blockage of the tubes the drier takes water out of the system 5
- Flowswitch the flowswitch protects the evaporator of the unit against freezing when there is no waterflow or when the waterflow is too low 5
- Function of the main components 5
- Functional diagram 5
- Water in outlet connection the water inlet and outlet connection allow an easy connection of the unit to the water circuit of the air handling unit or industrial equipment 5
- Waterfilter the waterfilter protects the evaporator against clogging 5
- Internal wiring parts table 6
- Safety devices 6
- Before operation 7
- Checks before initial start up 7
- Efore operation 7
- Digital controller 8
- General recommendations 8
- Operation 8
- Peration 8
- Power supply connection and crankcase heating 8
- Water supply 8
- Connection to the unit 9
- How to enter a menu 9
- Setting the language 9
- Switching the unit off 9
- Switching the unit on 9
- Switching units on off in a dicn system 9
- Working with the unit 9
- Consulting actual operational information 10
- Selecting cooling or heating operation 10
- Adjusting the temperature setpoint 11
- Resetting the unit 11
- Advanced features of the digital controller 12
- All menus are directly accessible using the corresponding key on the digital controller the down arrow x on the display indicates that you can go to the next screen of the current menu using the h key the up arrow w on the display indicates that you can go to the previous screen of the current menu using the g key if c is displayed this indicates that you can either return to the previous screen or can go to the next screen 12
- Depending upon the settings in the user settings menu and on the selected cooling heating operation mode the setpoints menu can either be entered directly or by means of the user password 12
- Readout menu 12
- Setpoints menu 12
- The user settings menu protected by the user password allows a full customization of the units 12
- 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 12
- User settings menu 12
- Additionally the number of safeties that already occured can be consulted on the first line of the history screens 13
- Along with the basic information more detailed information screens can be consulted while the safety menu is active press the q key screens similar to the following will appear 13
- History menu 13
- Info menu 13
- Input output menu 13
- Safeties menu 13
- The history menu contains all the information concerning the latest shutdowns the structure of those menus is identical to the structure of the safeties menu whenever a failure is solved and the operator performs a reset the concerning data from the safeties menu is copied into the history menu 13
- The input output menu gives the status of all the digital inputs and the relay outputs of the unit 13
- The safeties menu provides useful information for trouble shooting purposes the following screens contain basic information 13
- Timers menu 13
- Cooling heating menu 14
- Defining and activating the control mode 14
- Entering the user settings menu 14
- Network menu 14
- User password menu 14
- Defining dual evaporator pump control 15
- Defining the capacity limitation settings 15
- Defining the display settings 15
- Defining the lead lag mode 15
- Defining the pump control settings 15
- Defining the schedule timer 15
- Defining the thermostat settings 15
- Activating or deactivating the setpoints password 16
- Checking the actual value of the software timers 16
- Defining bms control 16
- Defining the network settings 16
- Checking the safety info and the unit status after a reset 17
- Checking the status of the inputs and outputs 17
- Consulting additional unit information 17
- Listing activated safeties and checking the unit status 17
- Changing the user password 18
- Roubleshooting 18
- Troubleshooting 18
- Aintenance 21
- Disposal requirements 21
- Maintenance 21
- Maintenance activities 21
- Cooling inlet water temperature control of evaporator outlet water temperature control of evaporator 22
- Heating inlet water temperature control of condenser 22
- Schedule timer example 22
- Thermostat parameters 22
- Oftware structure 23
- Q q q q q 23
- Q q q q q q 23
- Pw22685 1b 24
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