Daikin EWYQ080DAYN, Operation Manual

Page: 10 / 30

Operation manual
9
EWYQ080~250DAYN
Packaged air-cooled water chillers
4PW35558-1B
Connection of a remote digital controller to the unit
For a remote digital controller a cable length of up to 500 metres
between the remote digital controller and the unit is allowed. This
gives the opportunity to control the unit from a considerable distance.
Refer to "Cable for remote digital controller" in the installation manual
for cable specifications.
These restrictions are the same for units in a DICN configuration.
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 9
■
"Switching the unit on" on page 9
■
"Consulting actual operational information" on page 9
■
"Adjusting the temperature setpoint" on page 11
■
"Resetting the unit" on page 11
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
Å
usersettings menu. Refer to chapter "How to enter
a menu" on page 8 .
2 Go to the Language submenu of the
Å
usersettings menu using
the
fi
and
Ì
keys and press the
‡
key to enter.
3 Press
‡
to change the operating language until the desired
language is active.
The controller is factory set to English.
Switching the unit on
1 Press the
œ
key on the controller.
Depending on whether or not a remote ON/OFF switch has
been configured (refer to the installation manual), the following
conditions may occur.
When no remote ON/OFF switch is configured, the LED inside
the
œ
key lights up and an initialization cycle is started. Once all
the timers have reached zero, the unit starts up.
When a remote ON/OFF switch is configured, the following table
applies:
2 If the water chiller does not start after a few minutes, refer to
"Troubleshooting" on page 20 .
Switching the unit off
If no remote on/off switch is configured:
Press the
œ
key on the controller.
The LED inside the
œ
key goes out.
If a remote on/off switch is configured:
Press the
œ
key on the controller or switch the unit off using the
remote on/off switch.
The LED inside the
œ
key goes out in the first case and starts
blinking in the second case.
Switching units ON/OFF in a DICN system
If the
œ
key is pressed on a unit with status
NORMAL
or
STANDBY
, all
other units with status
NORMAL
or
STANDBY
will be ON or OFF.
If the
œ
key is pressed on a unit with status
DISCONNECT ON/OFF
,
only this unit will be ON or OFF.
Consulting actual operational information
1 Enter the readout menu. Refer to the chapter "How to enter a
menu" on page 8 .
The controller automatically shows the first screen of the
readout menu which provides the following information:
• ¶ cooling mode
•
§
heating mode
•
≠
fan (
H
high or
L
low)
• ¡ low noise mode activated (only available when option
OPIF is installed)
•
…
pump on
•
…1
/
2
in case of dual pump control: pump 1/2 on
• ∞11 / 12 circuit 1 compressor 1/2 on
• ∞21 / 22 circuit 2 compressor 1/2 on
•
≤
alarm and last occured malfunction code (
0U4
in
example)
• 13$6¢ actual temperature (inlet or outlet temperature
depending on active mode)
•
12$0¢
temperature setpoint (inlet or outlet temperature
depending on active mode)
NOTE When a remote digital controller is connected to a
stand-alone unit, the address of the remote digital
controller has to be set to SUB by means of the DIP-
switches on the back of the remote digital controller.
Refer to the installation manual "Setting the addresses
on the remote digital controller" for setting the address.
NOTE If the password protection is set to ON, the correct
password has to be given before any further
action is possible.
Local key
Remote
ON/OFF switch Unit
œ
LED
ON ON ON ON
ON OFF OFF Flashing
OFF ON OFF OFF
OFF OFF OFF OFF
NOTE
Also consult "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
NORMAL
or
STANDBY
of a DICN network is the contact
connected to the master unit.
For units with status
DISCONNECT ON/OFF
, 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
DISCONNECT ON/OFF
.
It is recommended not to select the master unit for this
purpose. Even if the status of the master is set to
DISCONNECT ON/OFF
, it will still be the contact
connected to the master which will switch ON/OFF the
other units in
NORMAL
or
STANDBY
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.
_v¶¡
… ≤0U4
013$6¢
∞11 ∞12 ≠H 012$0¢
∞21 ∞22 ≠H