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Daikin EWAP160MBYN [14/22] Activating or deactivating the setpoints password
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Operation manual
13
EWAP110~340MBYNN
Packaged air-cooled water chillers
4PW22677-1B
■
: The
time defines the target difference in
running hours between one unit and another unit with
%%%% 2
. This value is important for maintenance
purposes. The difference in setting among different units should
be high enough as to avoid servicing of the units all at the same
time. The lower and upper limits are 0 and 9000 hours
respectively. The default value is 0 hours.
■
: Set if the pump must operate as long as the chiller
is on (
), or during compressor on condition only (
).
When
is selected, the voltage free contact S9L will
remain closed as long as the chiller is on. When
is
selected, the voltage free contact S9L will remain closed as long
as the compressor is on.
Also refer to the separate manual "Installation examples for a
DICN configuration".
Activating or deactivating the setpoints password
The
screen of the user settings menu allows
the user to activate or deactivate the user password needed to
change the temperature setpoint. When deactivated, the user does
not have to enter the password each time he wants to change the
setpoint.
Defining BMS control
allows the user to control the unit from a supervisory system.
The
screen and
screen of the
service menu have to be used to set BMS parameters. Refer to
"Customization in the service menu" chapter "Defining the BMS
settings" in the installation manual.
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 (
– 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.
■ LOADDOWN (
– refer to the thermostat parameters): starts
counting when a thermostat step change has occurred. During
the countdown, the unit will not be able to go to a lower
thermostat step.
■ FLOWSTART (
– 15 sec): counts down when the
waterflow through the evaporator is continuous and the unit is in
standby. During the countdown, the unit cannot start up.
■ FLOWSTOP (
– 5 sec): starts counting when the
waterflow through the evaporator stops after the flowstart timer
has reached zero. If the waterflow has not restarted during the
countdown, the unit will shut down.
■ PUMPLEAD (
– refer to the pump control settings):
starts counting whenever the unit is switched on. During the
countdown, the unit cannot start up.
■ PUMPLAG (
– refer to the pump control settings):
starts counting whenever the unit is switched off. During the
countdown, the pump keeps running.
■ STARTTIMER (
&
– 10 sec): starts counting
whenever a compressor starts up. During the countdown, no
other compressor can start up.
■ GUARDTIMER (
– 60 sec): starts counting when the
compressor has been shut down. During the countdown, the
compressor cannot be restarted.
■ ANTIRECYCLING (
– 600 sec): starts counting when the
compressor has started. During the countdown, the compressor
cannot be restarted.
■ STARTUPTIMER (
– 180 sec): starts counting
when the compressor has started. During the countdown, the
compressor is limited to a maximum capacitystep of 30%.
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 6.)
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
.
NOTE
Put a unit to
when servicing the
machine. In this case it is possible to switch ON or
OFF this unit without switching ON or OFF the other
units of the network.
It is also possible then to operate the unit in
.
Put a unit to
continuously if the
operator wants to decide by himself when this unit
must operate.
Note that in this case, it makes no sense to define
another unit of the network as
. Since there is
a unit set continuously to
, the
unit will continuously be considered as a
unit.
NOTE
The settings on this screen of the network menu must
be executed for all chillers connected to the system.
NOTE
If changed on one of the units in a DICN configuration,
this setting is automatically transferred to all the other
units in the network.
Содержание
- Operation manual 1
- Packaged air cooled water chillers 1
- Electrical specifications 2
- Introduction 2
- Operation manual 2
- Technical specifications 2
- Description 3
- Escription 3
- Important information regarding the refrigerant used 3
- Function of the main components 4
- Safety devices 4
- Internal wiring parts table 5
- Before operation 6
- Checks before initial start up 6
- Efore operation 6
- Power supply connection and crankcase heating 6
- Water supply 6
- Digital controller 7
- General recommendations 7
- Operation 7
- Peration 7
- Working with the unit 7
- Consulting actual operational information 8
- Setting the language 8
- Switching the unit off 8
- Switching the unit on 8
- Switching units on off in a dicn system 8
- Adjusting the temperature setpoint 9
- Resetting the unit 9
- Advanced features of the digital controller 10
- All menus are directly accessible using the corresponding key on the digital controller or through the main menu refer to how to enter a menu on page 6 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 10
- Depending upon the settings in the user settings menu the setpoints menu can either be entered directly or by means of the user password 10
- Readout menu 10
- Setpoints menu 10
- The usersettings menu protected by the user password allows a full customization of the units 10
- 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 10
- Timers menu 10
- Usersettings menu 10
- Additionally the number of safeties that already occured can be consulted on the first line of the history screens 11
- 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 11
- History menu 11
- Info menu 11
- Input output menu 11
- Safeties menu 11
- 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 11
- The input output menu gives the status of all the digital inputs and the relay outputs of the unit 11
- The safeties menu provides useful information for trouble shooting purposes the following screens contain basic information 11
- To change the user password 11
- To check the capacity mode and feedback 11
- To check the status of the changeable digital inputs note that for a unit in a dicn system the inputs apply to this unit it will be the remote input on the master unit however that will be determining for the operation of the unit 11
- To check the status of the changeable relay output 11
- To check the status of the discharge thermal protector and the compressor thermal protector 11
- To check the status of the fanspeed relays 11
- To check the status of the high pressure switch the reverse phase protector and the overcurrent relay 11
- To check the status of the power relays 11
- To check the status of the pump the alarm and the evaporator heater voltage free contacts 11
- To check the time and control mode at the moment of the unit shutdown 11
- To check whether or not the emergency stop device is active and if there is any waterflow to the evaporator 11
- To check which was the status of the compressors at the moment of shutdown 11
- To check which were the evaporator and condenser inlet water temperature and the evaporator outlet water temperature 11
- To check which were the pressures of the circuit at the moment of shutdown 11
- To check which were the total amount of running hours of the compressor and the ambient temperature at the moment of shutdown 11
- To consult additional information about the unit such as the unit type and the refrigerant used 11
- To consult information about the circuit safety which caused the shutdown 11
- To consult information about the controller s software version 11
- To consult information about the dual pump which caused the shutdown 11
- To consult information about the network safety which caused the shutdown 11
- To consult information about the pcb 11
- To consult information about the unit safety which caused the shutdown 11
- To consult time and date information 11
- User password menu 11
- Defining and activating the control mode 12
- Defining the capacity limitation settings 12
- Defining the pump control settings 12
- Defining the schedule timer 12
- Defining the thermostat settings 12
- Entering the user settings menu 12
- Network menu 12
- Defining dual evaporator pump control 13
- Defining free cooling 13
- Defining the display settings 13
- Defining the network settings 13
- Defining the floating setpoint settings 13
- Activating or deactivating the setpoints password 14
- Checking the actual value of the software timers 14
- Defining bms control 14
- Checking the safety info and the unit status after a reset 15
- Checking the status of the inputs and outputs 15
- Consulting additional unit information 15
- Listing activated safeties and checking the unit status 15
- Changing the user password 16
- Roubleshooting 16
- Troubleshooting 16
- Aintenance 18
- Disposal requirements 18
- Maintenance 18
- Maintenance activities 18
- Inlet water temperature control outlet water temperature control 19
- Schedule timer example 19
- Thermostat parameters 19
- Floating setpoint working 20
- Free cooling on ambient temperature 20
- Free cooling on difference between inlet water evaporator temperature and ambient temperature 20
- Free cooling working 20
- Oftware structure 21
- Q q q q q 21
- Pw22677 1b 22
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