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4
Control
4.1 Control panel
Fig.1
P
0
L
3
L
4
P6
C
L2
F
I
P1
on
alarms
enter
P2
off
O
L5
HP
High pressure
L6
LP
Low pressure
L7
TP
Pump alarm
L8
LIV
Low water level
L9
PI
Compressor alarm
L1
PS
Power supply
L
P6
L2
P1
on
alarms
enter
P2
off
L5
HP
High pressure
L6
LP
Low pressure
L7
TP
Pump alarm
L8
LIV
Low water level
L9
PI
Compressor alarm
L1
Power supply
PS
P0 Isolator switch.
P1 On key: activates the controller.
P2 Off key: deactivates the controller.
P3 UP key: used to increase the value of a modifi able parameter.
P4 DOWN key: used to decrease the value of a modifi able parameter
P5 Enter key: used to confi rm modifi cations to parameters.
P6 Alarms key: used to reset all manual reset alarms.
LED
L1: yellow
L2: green
P5
WATER
P3
IN
P4
L3: red
L4: red
WATER
OUT
L5: red
L6: red
L7: red
3
L
4
L8: red
L9: red
P5
C
4.2 Starting the chiller
F
• Connect the power supply to the machine by turning the main
P3
isolator switch QS [P0] to ON.
• Turn the chiller 'ON' by pressing the key [P1].
• Set the desired temperature on the controller.
P4
Phases Monitor
If appears on display the alarm "PI1 ", during the start up, the user
must verify the wiring of the input terminals of the disconnecting
switch.
4.2.1
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
pump data plate values: Pmin 1 bar/ Pmax 3 bar
adjust the valve outlet to give a pressure of 3 bar < P1< 5 bar
- Example n°2.
Conditions:
open circuit, pressure P0 = 0 bar
pump data plate values: Pmin 1 bar/ Pmax 3 bar
adjust the valve outlet to give a pressure of 1 bar < P1 < 3 bar
c) Verify correct operation of the pump similarly under normal run-
ICE015-057
ON
FLASHING
Controller is receiving
power
Controller is On
With the controller receiving power
and 'Off ': an antifreeze heater is on.
With the controller receiving power
and 'On': compressor called for, but
wating for a delay time to elapse.
°C unit of measurement
°F unit of measurement
High pressure alarm
Low pressure alarm
Pump temperature alarm
USER Loop or FACTORY program-
ming mode
Low water level alarm
Compressor protection
alarm
ning conditions.
Check also that the amperage of the pump is within the limits indi-
cated on the data plate.
d) Switch off the chiller and proceed to top up the hydraulic circuit at
the "SET" temperature.
e) Check that the temperature of the "treated" water does not fall
below 5 °C and that the ambient temperature in which the hydraulic
circuit operates does not fall below 5 °C. If the temperature is too
low, add the appropriate quantity of glycol, as explained under head-
ing 3.3.2
4.3 Stopping the chiller
When chiller operation is no longer required, turn the chiller off as fol-
lows: press key [P2] to switch the controller 'Off ' .
Do not turn off the main switch QS [P0] to ensure that any antifreeze
protection devices will still receive electrical power.
4.4 Parameter settings
General
Th ere are two levels of protection for parameters:
a) Direct (D): with immediate access, User-changeable;
b) Password protected (U): password required for access; Factory-set
parameters.
4.4.1
Chiller parameters
PARAMETER
CODE
C-F
Unit of measurement
Adr
Unit address
Remote on / off enabling
rE
(see para. 4.4.1.1).
Alarm relay management (see
rAL
para. 4.4.1.2)
Ud2
Digital output 2 confi guration
Ud3
Digital output 3 confi guration
AtP
Pump thermal alarm management
HUL
Chiller hour counter
HUH
Chiller hour counter
Chiller hour counter alarm
tHU
threshold
4.4.1.1
Remote On / Off mode
0
Remote On/Off disabled
1
Remote On/Off enabled together with local On/Off
2
Remote On/Off only, local On/Off disabled
4/8
TYPE DEFAULT
0
U
1
U
0
U
0
U
0
U
0
U
1
U
-
U
-
U
0
U
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