English
4/8
Hyperchiller 450-760
4 Control
4.1 Control panel
Display
P0
Isolator switch.
P1
Shows alarms on the display, switches off the
buzzer if activated and resets alarms.
P2
Enables access to the menu for selecting the
group of parameters.
P3
Cancels an operation.
P4
Shift s the cursor or increases the value of a
parameter.
P5
Shift s the cursor or decreases the value of a
parameter.
P6
Shift s the cursor from one parameter to another
or confi rms a parameter.
LED
ON
FLASHING
P1
Alarm present.
-
P2
Machine on.
Machine switched off
by supervisor or digital
input.
4.2 Starting the chiller
• Connect the power supply to the machine by turning the main
isolator switch QS [P0] to ON.
!Y
THE CRANKCASE HEATER MUST BE ACTIVATED 24
HOURS BEFORE STARTING THE MACHINE.
Un’incorretta operazione può danneggiare seriamente il compressore
frigorifero.
• Switch the chiller ON as shown in the fi gure.
• Set the desired temperature on the controller.
Phases Monitor
If appears to display the alarm “012”(see para. 4.6.1), during the start
up of the chiller, the user must verify the wiring of the input termi-
nals of the disconnecting switch of the dryer.
M0
Inlet water 00.08C
Outlet water 00.08C
U1 OFF CH
p-USER
c-manufactory
h-Summer/winter
m-ON-OFF UNIT’
Unit 01 status M1
OFF
- Press ENTER to -
- switch on
4.3 Stopping the chiller
When cooler operation is no longer required switch it OFF as shown in
the fi gure.
Do not turn off the main switch QS [P0] to ensure that any antifreeze
protection devices will still receive electrical power.
M0
Inlet water 00.08C
Outlet water 00.08C
U1 ON CH
p-USER
c-manufactory
h-Summer/winter
m-ON-OFF UNIT’
Unit 01 status M1
ON
- Press ENTER to -
- switch off
4.3.1
Adjustments at commissioning
a) Th
e chiller is set for operation at a default temperature of 12 °C with
a diff erential of 3 °C; to adopt a new setting, see heading 4.5.
b) Verify correct operation of the pump, using the pressure gauge
(read P1 and P0) and checking the pressure limit values (Pmax and
Pmin) indicated on the pump data plate.
P1 = pressure with pump ON
P0 = pressure with pump OFF
Pmin < (P1-P0) < Pmax
- Example n°1.
Conditions:
closed circuit, pressure P0 = 2 bar
