![Daikin EWWD120MBYN [9/24] Working with the unit](/img/pdf.png)
Daikin EWWD120MBYN [9/24] Working with the unit
![Daikin EWWD120MBYN [9/24] Working with the unit](/views2/1662029/page9/bg9.png)
EWWD120~540MBYNN
Packaged water-cooled water chillers
4PW22685-1B
Operation manual
8
How to enter a menu
■ Digital built-in controller
Scroll through the main menu using the g and h keys to move
the
mark in front of the menu of your choice. Push the q key
to enter the selected menu.
■ Digital remote controller
Press the corresponding menu key indicated in "User interface",
paragraph "Digital remote controller" on page 7
Connection to the unit
For a remote controller a cable length of up to 1000 metres
(EWWD120~280) and 300 metres (EWWD360~540) between the
digital controller and the unit is allowed. This gives the opportunity to
control the unit from a considerable distance. Refer to "Cable for
digital controller" in the installation manual for cable specifications.
For units in a DICN configuration, the digital controllers of the units
can be installed remotely at a distance of up to 50 metres by using a
6-ray telephone cable with a maximum cable resistance of 0.1 Ω/m.
Working with the unit
This chapter deals with the everyday usage of the unit. Here, you will
find how to perform routine tasks, such as:
■ "Setting the language" on page 8
■ "Switching the unit on" on page 8 and "Switching the unit off" on
page 8
■ "Consulting actual operational information" on page 9
■ "Selecting cooling or heating operation" on page 9
■ "Adjusting the temperature setpoint" on page 10
■ "Resetting the unit" on page 10
Setting the language
If desired, the operating language can be changed to any of the
following languages: English, German, French, Spanish or Italian.
1 Enter the usersettings menu. Refer to chapter "How to enter a
menu" on page 8
2 Go to the appropriate screen of the usersettings menu using the
g and h keys.
3 Press q to change the operating language until the desired
language is active.
Switching the unit on
1 Press the J key on the controller.
Depending on the setting of the remote ON/OFF control
parameter (refer to the service manual), the following conditions
may occur.
When the remote ON/OFF control parameter is set to NO, the
LED inside the J key lights up and an initialization cycle is
started. Once all the timers have reached zero, the unit starts
up.
When the remote ON/OFF control parameter is set to YES, the
following table applies:
2 If the water chiller does not start after a few minutes, refer to
"Troubleshooting" on page 17.
Switching the unit off
If the remote on/off control parameter is set to No:
Press the o key on the controller.
The LED inside the o key goes out.
If the remote on/off control parameter is set to Yes:
Press the o key on the controller or switch the unit off using the
remote on/off switch.
The LED inside the o key goes out in the first case and starts
blinking in the second case.
Switching units ON/OFF in a DICN system
If the o key is pressed on a unit with status
or
, all
other units with status
or
will be ON or OFF.
If the o key is pressed on a unit with status
,
only this unit will be ON or OFF.
a
key, to enter the user password menu.
d
key, to enter the DICN menu, also referred to as network
menu (optional).
i
key, to enter the cooling/heating menu.
NOTE
Temperature readout tolerance: ±1°C.
Legibility of the alphanumeric display may decrease in
direct sunlight.
Local key Remote switch Unit o LED
ON ON ON ON
ON OFF OFF Flashing
OFF ON OFF OFF
OFF OFF OFF OFF
In case of emergency, switch off the unit by pushing the
emergency stopbutton.
NOTE
Also consult "Defining the schedule timer" on page 14
and “Customization in the service menu” chapter
“Setting of the changeable inputs and outputs” in the
installation manual.
NOTE
When a remote ON/OFF switch is configured, the
remote ON/OFF contact for all units with status
or
of a DICN network is the contact
connected to the master unit.
For units with status
, the remote
contact is the contact connected to this unit.
NOTE
If the user wants 1 unit to operate on his command
only, this unit is to be set to
.
Refer to "Working with the unit" on page 8.
It is recommended not to select the master unit for this
purpose. Even if the status of the master is set to
, it will still be the contact
connected to the master which will switch ON/OFF the
other units in
or
mode. It would
therefore never be possible to only switch the master
unit OFF remotely.
Switching OFF the master unit only, should in this case
be done by the local ON/OFF key on the master unit.
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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