Operation manual
11
EWLD120~540MBYNN
Condenserless water-cooled water chillers
4PW22687-1
Timers menu
Safeties menu
The "safeties" menu provides useful information for trouble shooting
purposes. The following screens contain basic information.
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.
To define the lead-lag mode of both
circuits (only for EWLD340~540).
To define the capacity limitations (first
screen).
To define the capacity limitations
(second screen).
To define the pump control settings.
To define the schedule timer.
To define the dual evaporator pump.
To define the floating setpoint.
To define the display settings. (first
screen)
To define the display settings. (second
screen)
To define the free cooling.
To define the number of slaves for a
“master” unit. This menu can only be
accessed at the
"
master
"
unit!
The controller displays the name of
the unit:
,
...
!
.
This name is automatically assigned
depending on the set hardware
address. Refer to
"
Setting the
adresses
"
in
"Connection and setup
of a DICN system"
in the installation
manual.
To define whether or not a password is
needed to enter the setpoints menu.
To enter the service menu (only a
qualified installer is allowed to access
this menu).
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To check the actual value of the general
software timers.
To check the actual value of the
compressor timer. (first screen)
To check the actual value of the
compressor timers. (second screen)
To check the actual value of the
compressor startup timers and the stop
timers.
To consult information about the unit
safety which caused the shutdown.
To consult information about the
circuit
1 safety which caused the
shutdown.
To consult information about the
circuit
2 safety which caused the
shutdown
(only for EWLD340~540)
.
To consult information about the
network safety which caused the
shutdown.
To consult information about the dual
pump which caused the shutdown.
To check the time and control mode
at the moment of the unit shutdown.
To check which were the evaporator
and condenser inlet water tem-
perature and the evaporator outlet
water temperature.
To check which was the evaporator
outlet water temperature of the circuit
at the moment of shutdown
(only for
EWLD340~540).
To check which was the status of the
compressors at the moment of
shutdown.
To check which were the pressures of
circuit 1 at the moment of shutdown.
To check which were the pressures of
circuit 2 at the moment of shutdown.
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