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Daikin EWAP160MBYN [16/22] Roubleshooting
![Daikin EWAP160MBYN [16/22] Roubleshooting](/views2/1657062/page16/bg10.png)
Operation manual
15
EWAP110~340MBYNN
Packaged air-cooled water chillers
4PW22677-1B
The changeable analog inputs are:
■
&& %7
: indicates the status of the analog input
■
&&%&%
: indicates the status of the analog input
■
&& %7
: indicates the status of the analog input
■
: indicates the status of the analog input
To check the inputs and outputs, proceed as follows:
1 Enter the
.
(Refer to the chapter "How to
enter a menu" on page 6.)
The controller enters the first
screen.
2 Consult the other screens of the input/ouput menu using the g
and h keys.
Tasks of the user password menu
Changing the user password
Access to the user settings menu and the setpoints menu is
protected by the user password (a 4-digit number between
%%%%
and
++++
).
To change the user password, proceed as follows:
1 Enter the
&
(Refer to the chapter "How to
enter a menu" on page 6).
The controller will request the password.
2 Enter the correct password using the g and h keys.
3 Press q to confirm the password and to enter the password
menu.
The controller requests the new password.
4 Press q to start the modification.
The cursor is positioned behind
.
5 Enter the new password using the g and h keys.
6 Press q to confirm the new password.
When the new password has been confirmed, the controller will
ask to enter the new password a second time (for safety
reasons). The cursor is positioned behind
.
7 Enter the new password again using the g and h keys.
8 Press q to confirm the new password.
TROUBLESHOOTING
This section provides useful information for diagnosing and
correcting certain troubles which may occur in the unit.
Before starting the trouble shooting procedure, carry out a thorough
visual inspection of the unit and look for obvious defects such as
loose connections or defective wiring.
Before contacting your local dealer, read this chapter carefully, it will
save you time and money.
Overview of safety messages
When a safety device was activated, stop the unit and find out why
the safety device was activated before resetting it. Under no
circumstances safety devices may be bridged or changed to a value
other than the factory setting. If the cause of the problem cannot be
found, call your local dealer.
Symptom 1: The unit does not start, but the ON LED lights up
Symptom 2: The unit does not start, but the ON LED is flashing
Symptom 3: The unit does not start and the ON LED does not light up
3
NOTE
The default user password is
"#
.
NOTE
The actual password will only be changed when the
new password and the confirmed password have the
same value.
If changed on one of the units in a DICN configuration,
this setting is automatically transferred to all the other
units in the network.
When carrying out an inspection on the supply panel or on
the switch box of the unit, always make sure that the circuit
breaker of the unit is switched off.
Message safety menu Symptom
%% 3
% 5.7
%#8 5.8
%+ 13
% 13
%+ 13
5.6
" 5.3
. 5.9
$ 5.1
" 5.6
# 5.2
9 13
9 13
+"& 11
+#& 12
%# & 10
% 13
%+ 13
%
5.7
POSSIBLE CAUSES CORRECTIVE ACTION
The temperature setting is not
correct.
Check the controller setpoint.
The flowstart timer is still running. The unit will start after approx. 15
seconds. Make sure that water is
flowing through the evaporator.
The circuit can not start up. Refer to Symptom 4: The circuit
does not start up.
Unit is in manual mode (all
compressors at 0%).
Check on the controller.
Power supply failure. Check the voltage on the supply
panel.
Blown fuse or interrupted protection
device.
Inspect fuses and protection
devices. Replace by fuses of the
same size and type (refer to
"Electrical specifications" on
page 1).
Loose connections. Inspect connections of the field
wiring and the internal wiring of the
unit. Tighten all loose connections.
Shorted or broken wires. Test circuits using a tester and repair
if necessary.
POSSIBLE CAUSES CORRECTIVE ACTION
The remote ON/OFF input is
enabled and the remote switch is off.
Put the remote switch on or disable
the remote ON/OFF input.
POSSIBLE CAUSES CORRECTIVE ACTION
The unit is in failure mode. Refer to Symptom 5: One of the
following safety devices is activated.
One of the following safety devices is
activated:
• Flowswitch (S8L,S9L)
• Emergency stop
Refer to Symptom 5: One of the
following safety devices is activated.
The ON LED is broken. Contact your local dealer.
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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