Daikin EUWAC8FZW1 Installation And Operation Manual page 15

Defining the timer threshold for maintenance warning
User parameter cb allows you to define a timer threshold (running
hours of the compressor) after which the controller will generate a
maintenance warning or request. The default, limit and step values
for the timer threshold are:
Default value 0 hours
Limit values 0 to 10,000 hours
Step value 100 hours
To define the timer threshold, proceed as follows:
1 Enter the list of user parameters.
Parameter code :d appears on the display.
2 Select parameter code cb using the A and/or Z key.
3 Press the R key to switch to the parameter value.
4 Select the appropriate setting using the A and/or Z key.
5 Press the R key to return to the list of parameter codes.
6 To adjust or to consult other user parameters before saving the
modifications, select another user parameter using the A and/
or Z key and then repeat from instruction 3 onwards.
7 To save the modifications, press the E key. To cancel the
modifications wait approximately 40 seconds.
In the first case, the controller saves the changes, leaves the list
of user parameters and returns to normal operation, displaying
the inlet water temperature.
In the second case, the display starts flashing. Approximately
40 seconds later, the controller leaves the list of user
parameters without saving the modifications. The inlet water
temperature reappears on the display.
NOTE If the unit is always working in normal conditions, no
specific maintenance is requested. In this case the
warning function can be disabled by setting parameter
cb to 0.
Enabling or disabling the buzzer
When an alarm is detected, the buzzer is activated for the period
defined by user parameter p4. The default, limit and step values for
the activation period are:
Default value 1 min
Limit values 0 to 15 min
buzzer disabled
0
buzzer active until muted by the user
15
Step value 1 min
To enable the buzzer for a certain period or to disable the buzzer,
proceed as follows:
1 Enter the list of user parameters.
Parameter code :d appears on the display.
2 Select parameter code p4 using the A and/or Z key.
3 Press the R key to switch to the parameter value.
4 Select the appropriate setting using the A and/or Z key.
5 Press the R key to return to the list of parameter codes.
6 To adjust or to consult other user parameters before saving the
modifications, select another user parameter using the A and/
or Z key and then repeat from instruction 3 onwards.
7 To save the modifications, press the E key. To cancel the
modifications wait approximately 40 seconds.
In the first case, the controller saves the changes, leaves the list
of user parameters and returns to normal operation, displaying
the inlet water temperature.
EUWAC5~10FZ
Packaged air-cooled water chillers
4PW14037-1D
In the second case, the display starts flashing. Approximately
40 seconds later, the controller leaves the list of user
parameters without saving the modifications. The inlet water
temperature reappears on the display.
Selecting local or remote on/off control
User parameter h7 in combination with the remote on/off switch
(installed by the customer) allows the user to switch the unit on with-
out using the I key on the controller.
When user parameter h7 is set to 0 (=No), the unit can only be
switched on by means of the I key on the controller.
When user parameter h7 is set to 1 (=Yes), the unit can be
switched on by means of the remote on/off switch and the I
key on the controller.
Key on the controller Remote On/off switch
ON
ON
OFF
OFF
To select local or remote on/off control, proceed as follows:
1 Enter the list of user parameters.
Parameter code :d appears on the display.
2 Select parameter code h7 using the A and/or Z key.
3 Press the R key to switch to the parameter value.
4 Select the appropriate setting using the A and/or Z key.
5 Press the R key to return to the list of parameter codes.
6 To adjust or to consult other user parameters before saving the
modifications, select another user parameter using the A and/
or Z key and then repeat from instruction 3 onwards.
7 To save the modifications, press the E key. To cancel the
modifications wait approximately 40 seconds.
In the first case, the controller saves the changes, leaves the list
of user parameters and returns to normal operation, displaying
the inlet water temperature.
In the second case, the display starts flashing. Approximately
40 seconds later, the controller leaves the list of user
parameters without saving the modifications. The inlet water
temperature reappears on the display.
UNIT RESULT
ON ON
OFF OFF
ON OFF
OFF OFF
Installation and operation manual
12