Operation manual
11
EWAQ080~260DAYN
Packaged air-cooled water chillers
4PW35556-1E
Advanced features of the digital controller
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.
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 8
). The down arrow
v
on the display indicates that
you can go to the next screen of the current menu using the
Ì
key.
The up arrow
^
on the display indicates that you can go to the
previous screen of the current menu using the
fi
key. If
÷
is
displayed, this indicates that you can either return to the previous
screen or can go to the next screen.
Readout menu
ª
Setpoints menu
∑
Depending upon the settings in the "advanced" usersettings menu,
the "setpoints" menu can either be entered directly or by means of
the user password.
Usersettings menu
Å
The "usersettings" menu, protected by the user password, allows a
full customization of the units.
THERMOSTAT
COMPRESSOR
FAN
To consult actual operational informa-
tion about the status of the pump, the
compressor and the fans and the
temperature setpoint (depending on
active mode).
To consult actual operational informa-
tion about the control mode, the inlet
and outlet water temperature.
Note that for a DICN system, the
INLET WATER
and
OUTLET WATER
values are the values of the individual
units, not of the system. Temperatures
of the system can be consulted in the
first screen of the network menu.
To consult information about the
discharge temperature of circuit 1.
To consult information about the
discharge temperature of circuit 2 (only
for EWAQ130~260).
To consult information about the
temperature of the refrigerant of
circuit 1.
To consult information about the
temperature of the refrigerant of
circuit 2 (only for EWAQ130~260).
To consult information about the actual
pressures and the fans of circuit 1 and
to check if the fans are running in
lownoise mode.
To consult information about the actual
pressures and the fans of circuit 2 (only
for EWAQ130~260).
To consult information about the unit
status of circuit 1 and the capacity of
the unit.
To consult information about the unit
status of circuit
2 (only for
EWAQ130~260).
To consult actual operational informa-
tion about the current (Ampere) and
voltage of the unit.
To consult actual operational informa-
tion about the total running hours and
the number of compressor stops of
circuit 1 (first screen) and total running
hours of the pumps.
_v¶
… ≤0U4
013$6¢
∞11 ∞12 ≠H 012$0¢
∞21 ∞22 ≠H
_÷COOL. INLSP1:012$0¢
INLET WATER:013$6¢
OUTLET WATER:007$0¢
AMBIENT:006$5¢
_÷ C1 TEMP.READOUT
C11 DISCHARGE:010$1¢
C12 DISCHARGE:010$5¢
_÷ C2 TEMP.READOUT
C21 DISCHARGE:010$1¢
C22 DISCHARGE:010$5¢
_÷ C1 TEMP.READOUT
C1 REFR:000$0¢
_÷ C2 TEMP.READOUT
C2 REFR:000$0¢
_÷ C1 ACT. PRESSURES
HP1:019$0b = 050$8¢
LP1:000$4b = -05$2¢
FAN1:OFF
_÷ C2 ACT. PRESSURES
HP2:019$0b = 050$8¢
LP2:000$4b = -05$2¢
FAN2:OFF
_÷ UNIT STATUS
C11:OFF SAFETY ACT.
C12:OFF SAFETY ACT.
UNIT CAPACITY:000%
_÷ UNIT STATUS
C21:OFF SAFETY ACT.
C22:OFF SAFETY ACT.
_÷ EXTRA READOUT
CURRENT:055A
VOLTAGE:023V
_÷ EXTRA READOUT
C11RH:00000hCS:00000
RHP1:00001hP2:00000h
To consult actual operational informa-
tion about the total running hours and
the number of compressor stops of
circuit 1 (second screen).
To consult actual operational informa-
tion about the total running hours and
the number of compressor stops of
circuit
2 (first screen) (only for
EWAQ130~260).
To consult actual operational informa-
tion about the total running hours and
the number of compressor stops of
circuit
2 (second screen) (only for
EWAQ130~260).
To define the temperature setpoints.
Use the
fi
and
Ì
keys to scroll
through the menu and press the
‡
key
to enter the submenu of your choice.
To define the thermostat settings.
To define the settings for manual
control.
To define the compressor lead-lag
settings.
To define the compressor capacity
limitation settings.
To define the action on all the fans in
case the unit is off.
_÷ EXTRA READOUT
C12RH:00000hCS:00000
_÷ EXTRA READOUT
C21RH:00000hCS:00000
_÷ EXTRA READOUT
C22RH:00000hCS:00000
> COOL. INLSP1:012$0¢
COOL. INLSP2:012$0¢
COOL. OUTSP1:007$0¢
COOL. OUTSP2:007$0¢
USERSETTINGS MENU
>THERMOSTAT
COMPRESSOR
FAN
PUMP
FLOATING SETPOINT
LANGUAGE
TIME AND DATE
FREE COOLING
DICN
ADVANCED
DEFROST
SERVICE MENU
_v THERMOSTAT
MODE:INL WATER
LOADUP:300s-DWN:030s
_^ MANUAL SETTINGS
C11:OFF C12:OFF
C21:OFF C22:OFF
F1*:OFF F2*:OFF
_v COMPR.LEAD-LAG
MODE:PRIORITY
PRIORITY:
C11>C12>C21>C22
_^ COMPR.CAP.LIMIT
MODE:LIMIT SETTING
SET: C11:OFF C12:OFF
C21:OFF C22:OFF
_ FAN FORCED ON
IF UNIT IS OFF THEN
ALL FANS:OFF