EWWP045~06 ECB1~3MUW
Packaged water-cooled water chillers
4PW30041-1A
Operation manual
14
To reset the unit, proceed as follows:
1
Press the
p
key to acknowledge the alarm.
The buzzer is deactivated.
The controller automatically switches to the corresponding
screen of the safeties menu: unit safety or module safety.
2
Find the cause of shutdown and correct.
Refer to
"Listing activated safeties and checking the unit status"
and the chapter
When a safety can be reset, the LED under the
p
key starts
blinking.
3
Press the
p
key to reset the safeties that are no longer active.
Once all safety devices are disactivated and reset, the LED
under the
p
key goes out. If one of the safeties is still active, the
LED under the
p
key goes on again. In this case, return to
instruction 2.
4
If a unit safety occurred or if all modules were shut down due to
module safeties, switch on the unit using the
o
key.
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.
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 by
using the
g
and
h
keys.
Main menu
Scroll through the main menu using the
g
and
h
keys to move the
>
mark in front of the menu of your choice. Push the
q
key to enter the
selected menu.
Readout menu
Setpoints menu
Depending upon the settings in the user settings menu and on the
selected cooling/heating operation mode, the "setpoints" menu can
either be entered directly or by means of the user password.
User settings menu
The "user settings" menu, protected by the user password, allows a
full customization of the units.
If the user shuts down the power supply in order to repair a
safety, the safety will automatically be reset after power-up.
NOTE
The history information, i.e. the number of times a unit
safety or a circuit safety occurred and the unit status at
the moment of shutdown, can be checked by means of
the history menu.
To consult actual operational infor-
mation about the control mode, the
inlet water temperature of the
evaporator/condenser and the
thermostat step.
To consult information about the
outlet water temperature of the
modules
1, 2 and 3 (only for
52~72Hp).
To consult information about the
compressor status (first screen).
>READOUT MENU
SETPOINTS MENU
USERSETTINGS MENU
TIMERS MENU
HISTORY MENU
INFO MENU
I/O STATUS MENU
USERPASSWORD MENU
COOL/HEAT MENU
BX
MANUAL MODE
INL WATER E: 12.0°C
INL WATER C: 30.0 °C
THERMOSTAT STEP :2/6
BC
EVAPORATOR
M1 : OUTLWATER: 07.0 °C
M2: OUTLWATER: 07.0 °C
M3: OUTLWATER:-03.0 °C
BC
COMPRESSOR STATUS
C11 : OFF-CAN STARTUP
C12: OFF-CAN STARTUP
C21: OFF-CAN STARTUP
To consult information about the
compressor status (second screen).
To
consult actual operational
information about the total running
hours of the compressors.
To define the temperature setpoints.
To define the manual settings and to
select the control mode.
To define the thermostat settings.
To define the lead-lag mode of the
modules.
To define capacity limitation.
(first screen)
To define capacity limitation.
(second screen)
To define the pump control settings.
To define the schedule timer.
To define the dual evaporator pump.
To define the display settings.
To define whether or not a password
is needed to enter the setpoints
menu.
BC
COMPRESSOR STATUS
C22: OFF-CAN STARTUP
C31 : OFF- SAFETY ACT.
C32: OFF- LIMIT
BW
RUNNING HOURS
C11 : 00010h 12 ; 00010h
C21 : 00010h 22 ; 00010h
C31 : 00010h 32 ; 00010h
B
>INLSETP1 E : 12.0°C
INLSETP2 E : 12.0°C
INLSETP1 C : 30.0°C
INLSETP2 C : 30.0°C
BC
CONTROL SETTINGS
MODE :MANUAL CONTROL
C11 : OFF 12 ; OFF
C21 : OFF 22 ; OFF
BC
THERMOST.SETTINGS
STEPS : 6 STPL.: 1.5°C
STEPDIFFERENCE: 0.5°C
LOADUP: 180s-DWN: 30s
C
LEAD-LAG SETTINGS
LEAD-LAG MODE : AUTO
LEAD-LAG HOURS: 1000h
BC
CAP. LIM. SETTINGS
MODE : REMOTE DIG INP.
L1M1 : OFF 2: OFF 3: OFF
L2M1 : OFF 2: OFF 3: OFF
BC
CAP. LIM. SETTINGS
L3M1 : OFF 2: OFF 3: OFF
L4M1 : OFF 2: OFF 3: OFF
BC
PUMPCONTROL
PUMPLEADTIME : 020s
PUMPLAGTIME : 000s
DAILY ON : Y AT : 00h00
BC
SCHEDULE TIMER
ENABLE TIMER : N
ENABLE HOLIDAY PER : N
BC
HOLIDAY : 01 TO 03
1 : 00h00 -
2: 00h00 -
3: 00h00 -
BC
DUAL EVAP. PUMP
MODE : AUTOM. ROTATION
OFFSET ON RH : 0048h
BC
DISPLAY SETTINGS
LANGUAGE : ENGLISH
TIME : 00h00
DATE : 00/01/2001
BC
SETPOINT PASSWORD
PASSWORD NEEDED TO
CHANGE SETPOINTS : Y
