Ferroli RHV R134a User manual

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MONITORING SYSTEM
FOR SERIES:
• RHV R134a
• RHV R407C BTZ
• RVW
• RLA
• RHA
INSTRUCTION MANUAL

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The manufacturer declines all responsibility for any inaccuracies in this manual due to printing or typing errors.
The manufacturer reserves the right to make changes and improvements to products in the catalog at any time and without notice.

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TABLE OF CONTENTS
MONITORING SYSTEM - User interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
CONTROL PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
FUNCTION BUTTONS “F1”, “F2”, “F3”, “F4” AND “ON/OFF” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
JOYSTICK BUTTON: “MENU” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
LED STATUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
MONITORING SYSTEM - User menù . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
COOLING MODE IR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
HEATING MODE IP (reversible refrigerant side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
HEATING MODE IW (reversible water side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
HEAT RECOVERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
MONITORING SYSTEM - User setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
CONTROL PANEL UNIT ON/OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
REMOTE OFF BY DIGITAL INPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
CHANGE OPERATING MODE (hot / cooling) BY CONTROL PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
CHANGE OPERATING MODE (SUMMER / WINTER) BY DIGITAL INPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
SETTING THE OPERATING SET POINT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
TERMOREGULATION TIME PROPORTIONAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
HEAT RECOVERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
IHEAT RECOVERY SETTING THE PARAMETERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
STATE OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
DATE AND TIME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
TIME SCHEDULING MANAGEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
MONITORING SYSTEM - Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
ALARMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
BIOS ALARMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
USER ALARMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
AUTOMATIC ALARMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
ALARMS HISTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
DISPLAYING THE ALARMS HISTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

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MONITORING SYSTEM - User interface
CONTROL PANEL
The control panel is composed of the instrument’s front panel, equipped with an LCD display, three indicator LEDs, and one joy-
stick buttons and three function button, it enables viewing and/or checking the operating mode and parameters, resources and
complete alarm diagnostics.
In particular, it enables:
•Managing alarm situations
•Checking the status of resources.
KEY
1.Display
2. Alarms LED
3. LED for communication between the motherboard and the keypad
4. Power supply LED
5. Joystick Menu Buttons
6. Function Buttons
On pressing any of the buttons the display will light up for a few seconds; without pressing any of the buttons, the display will go
out after a few seconds. When switching on, the instrument will go into the state saved at the last machine shutdown or stand-by.
FUNCTION BUTTONS “F1”, “F2”, “F3”, “F4” AND “ON/OFF”
On the left of the keyboard there are 3 buttons whose function is shows on the
left of the LCD.
At POWER ON the LCD display shows the F1 (up), F2 (middle) and ON/OFF
(down) functions.
• By a single pressure of ON/OFF button: the keyboard displaying change:
F1 became F3 (up button) and F2 became F4 (middle button). The ON/OFF
(down) button doesn’t change.
By a new pressure on ON/OFF button, the keyboard displaying change and
show the previous situation:
F1, F2 and ON/OFF.
• BY PUSHING FOR SOME SECONDS THE ON/OFF BUTTON:
THE MACHINE ON-OFF (ON-OFF)
Using the buttons, the function of which is shown on the display, you can direct-
ly access main functions:
•Pressing a single time: shows the main menu on the display.
•Pressing for a few seconds: directly access the menu associated with that
particular position.
KEY F1 : show the INPUTS and OUTPUTS resources of system control.
KEY F2 :
show the PARAMETER submenu (for the service only, with password).
KEY F3 : show the ALARMS submenu.
KEY F4 : show the COMPRESSOR submenu.
CAUTION: IF THE ALARM SIGNAL “RTC” (REAL TIME CLOCK) APPEARS WHEN STARTING FOR THE FIRST TIME, SET
THE DATE AND TIME IN THE RESPECTIVE “DATE AND TIME” MENU.
1234
5
6
17:25 01/03
Cool
Water IN 12.0°C
Water OUT 7.0°C
F1
F2
5
F1
F2
F3
F4

LED STATUS
LEDs ( )
The first LED (green) indicates there is supply voltage:
•LED ON means that the controller is powered
•LED OFF means that the controller is not powered
LED (RX-TX)
The second LED (amber) indicates there is communication between the controller and the keypad:
• ON when there is communication
• OFF when there is no communication
LED ( )
The third LED (red) indicates there are alarms:
• ON if there is at least one active alarm
• OFF if there are no active alarms
• BLINKING if there are alarms that have ended but have not yet been manually reset.
• BLINKING without alarms to indicate that:
- function HPP (High Pressure Prevention) is active (RHV - RVW units)
- function ATC (Advanced Temperature Control) is active (RLA - LFL unit)
- function PRE-ALARM HIGH PRESSURE is active (RLA - LFL unit)
- function PRE-ALARM LOW PRESSURE is active (RLA - LFL unit).
The alarm reset procedure is explained in paragraph MONITORING SYSTEM - ALARMS
6
•Position UP: scrolls through the menu
items upwards or increases the value of a
parameter.
•Position DOWN: scrolls through the
menu items downwards or decreases the
value of a parameter.
•Position LEFT (ESC): returns to the
previous menu.
•Position RIGHT: moves into the sub-
menu, confirms an action, enters edit-
ing a value or again confirms a changed
value.
N.B. PRESSING THE (ENTER) BUTTON IN THE MIDDLE CONFIRMS THE COMMAND OR
ACCESSES THE DISPLAYED MENU.
JOYSTICK BUTTON: “MENU”
Used to scroll through the menus by acting on the four positions (UP; DOWN; LEFT; RIGHT) pressing a single time; in particular:
MONITORING SYSTEM - User interface

7
When the unit switches on, the display shows the first page of the main screen.
On the top line there is the current time (17:25) and the page no. (1/4 comprising
the screen.
-
“Standby”indicate the state of operation of the unit (Standby, cooling, shutdown).
- “Water IN” indicate the temperature of inlet evaporator.
- “Water OUT” indicate the temperature of the outlet evaporator.
Pressing the DOWN button takes you to page 02/04
- “Power” show the power output from the unit.
- “ Set Point 1” the set point adjustment.
- “Band 1” the band adjustment
By using the UP/DOWN-ENTER buttons to select the Set point 1 and/or Band 1 line,
it is possible to change the adjustment settings.
17:25 01/04
Standby
Water IN 12.0°C
Water OUT 7.0°C
02/04
Power 70%
Set Point 1 7.0°C
Band 1 1.0°C
03/04
Real Set 7.0°C
REM OFF enable NO
Menu
04/04
Reserved menu
COOLING MODE IR
Pressing the DOWN button takes you to page 03/04.
- “Real Set” indicate the current point of adjustment.
- “REM OFF enable” enable switch off the unit via digital input. This function has
priority over keypad commands. On the RH side of the display YES/NO appears
depending on the enabling of Remote OFF.
- “Menu” indicate the access point to the user menu. Pressing Enter, with the
UP/DOWN buttons it is possible to access the following pages (see the table).
Pressing the DOWN button takes you to page 04/04.
-“Reserved menu” is reserved for the support service.
DISPLAY DESCRIPTION
Page 1 of 3
Inputs and outputs Displays the status and values of the digital and analog inputs/outputs
Alarms Used to see and/or reset the status of the alarms
Date and time Used to set the current date and time
Page 2 of 3
Pumps Used to see the activation status of the pumps
Circuits Used to see the activation status of the circuits
Compressors Used to see the activation status of the compressors
Page 3 of 3
Condenser
(water condenser)
Fans
(air condenser)
Used to see the state of condensation control
Used to see the state of fans control
Time scheduling Used to set the operating time scheduling
Language selection Used to select the language (english by default)
MENU 01/03
Inputs and outputs
alarms
Date and time
MENU 02/03
Pumps
Circuits
Compressor
MENU 03/03
Condenser / Fans
Time scheduling
Language selection
F1
F2
F1
F2
F1
F2
F1
F2
F1
F2
F1
F2
F1
F2
MONITORING SYSTEM - User menù

8
When the unit switches on, the display shows the 4 page of the main screen
On the top line there is the current time (17:25) and the page no. (1/4 comprising the
screen.
- “Standby” indicate the state of operation of the unit (standby, cooling, hot, shutdown).
- “Water IN” indicate the temperature of inlet evaporator.
- “Water OUT” indicate the temperature of the outlet evaporator.
Pressing the DOWN button takes you to page 02/04
- “Power” indicate the power delivered by the unit.
- “ Set Point 1” the set point adjustment.
- “Band 1”, the band of adjustment .
By using the UP/DOWN-ENTER buttons to select the Set point 1 it is possible to
change the adjustment settings.
17:25 01/04
Standby
Water IN 40.0°C
Water OUT 45.0°C
02/04
Power 70%
Set Point 1 45.0°C
Band 1 1.0°C
03/04
Local mode Hot
Real Set 45.0°C
REM S/W enable NO
04/04
REM OFF enable
NO
Menu
Reserved menu
HEATING MODE IP (reversible refrigerant side)
Pressing the DOWN button takes you to page 03/04.
- “Local mode”, selection of the mode of operation by control panel.
- “Real Set”, indicate the current point of adjustment.
- “ REM S/W enable” enable mode change of the unit via digital input. This func-
tion has priority over keypad commands. On the RH side of the display YES/NO
appears depending on the enabling of REM S/W.
By using the UP/DOWN-ENTER buttons to select the “Local mode” it is possible
to change the Mode of operation (HOT-COOLING) of unit.
Pressing the DOWN button takes you to page 04/04.
- “REM OFF enable” enable switch off the unit via digital input. This function has
priority over keypad commands. On the RH side of the display YES/NO appears
depending on the enabling of REM OFF.
- “Menu” indicate the access point to the user menu. Pressing Enter, with the
UP/DOWN buttons it is possible to access the following pages (see the table).
-“Reserved menu” is reserved for the support service.
DISPLAY DESCRIPTION
Page 1 of 3
Inputs and outputs Displays the status and values of the digital and analog inputs/outputs
Alarms Used to see and/or reset the status of the alarms
Date and time Used to set the current date and time
Page 2 of 3
Pumps Used to see the activation status of the pumps
Circuits Used to see the activation status of the circuits
Compressors Used to see the activation status of the compressors
Page 3 of 3
Fans Used to see the state of fans control
Time scheduling Used to set the operating time scheduling
Language selection Used to select the language (english by default)
MENU 01/03
Inputs and outputs
alarms
Date and time
MENU 02/03
Pumps
Circuits
Compressor
MENU 03/03
Fans
Time scheduling
Language selection
F1
F2
F1
F2
F1
F2
F1
F2
F1
F2
F1
F2
F1
F2
MONITORING SYSTEM - User menù

9
When the unit switches on, the display shows the first page of the main screen
On the top line there is the current time (17:25) and the page no. (1/5 comprising the
screen.
-
“Standby” indicate the state of operation of the unit (Standby, cooling, hot, shutdown).
- “Water IN” indicate the temperature of inlet evaporator.
- “Water OUT” indicate the temperature of the outlet evaporator.
Pressing the DOWN button takes you to page 02/05
- “Cond. Out” indicate the temperature of the outlet condenser.
- “Power” show the power output from the unit.
- “ Set Point 1” the set point adjustment.
By using the UP/DOWN-ENTER buttons to select the Set point 1 it is possible to
change the adjustment settings.
17:25 01/05
Standby
Water IN 12.0°C
Water OUT 7.0°C
02/05
Cond. Out 42.0°C
Power 70%
Set Point 1 7.0°C
03/05
Band 1 1.0°C
Local mode Hot
Real Set 45.0°C
04/05
REM S/W enable NO
REM OFF enable NO
Menu
05/05
Reserved menu
HEATING MODE IW (reversible water side)
Pressing the DOWN button takes you to page 03/05.
- “Band 1”, the band 1 of adjustment.
- “Local mode”, selection of the mode of operation by control panel.
- “Real Set”, indicate the current point of adjustment.
By using the UP/DOWN-ENTER buttons to select the “Band 1” it is possible to
change the band regolation.
By using the UP/DOWN-ENTER buttons to select the “Local mode” it is possible
to change the Mode of operation (HOT-COOLING) of unit.
Pressing the DOWN button takes you to page 04/05.
- “ REM S/W enable” enable mode change of the unit via digital input. This func-
tion has priority over keypad commands. On the RH side of the display YES/NO
appears depending on the enabling of REM S/W.
- “REM OFF enable” enable switch off the unit via digital input. This function has
priority over keypad commands. On the RH side of the display YES/NO appears
depending on the enabling of REM OFF .
- “Menu” indicate the access point to the user menu. Pressing Enter, with the
UP/DOWN buttons it is possible to access the following pages (see the table).
DISPLAY DESCRIPTION
Page 1 of 3
Inputs and outputs Displays the status and values of the digital and analog inputs/outputs
Alarms Used to see and/or reset the status of the alarms
Date and time Used to set the current date and time
Page 2 of 3
Pumps Used to see the activation status of the pumps
Circuits Used to see the activation status of the circuits
Compressors Used to see the activation status of the compressors
Page 3 of 3
Condenser Used to see the state of condensation control
Time scheduling Used to set the operating time scheduling
Language selection Used to select the language (english by default)
MENU 01/03
Inputs and outputs
alarms
Date and time
MENU 02/03
Pumps
Circuits
Compressor
MENU 03/03
Condenser
Time scheduling
Language selection
F1
F2
F1
F2
F1
F2
F1
F2
F1
F2
F1
F2
F1
F2
F1
F2
MONITORING SYSTEM - User menù
Pressing the DOWN button takes you to page 05/05.
-“Reserved menu” is reserved for the support service.

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DISPLAY DESCRIPTION
Page 1 di 4
Inputs and outputs Displays the status and values of the digital and analog inputs/outputs
Alarms Used to see and/or reset the status of the alarms
Date and time Used to set the current date and time
Page 2 di 4
Pumps Used to see the activation status of the pumps
Circuits Used to see the activation status of the circuits
Compressors Used to see the activation status of the compressors
Page 3 di 4
Condenser Used to see the state of condensation control
Heat Recovery Used to see the state of heat recovery
Time scheduling Used to set the operating time scheduling
Page 4 di 4
Language selection Used to select the language (english by default)
When the unit switches on, the display shows the first page of the main screen
On the top line there is the current time (17:25) and the page no. (1/4 comprising
the screen.
- “Standby” indicate the state of operation of the unit (standby, cooling, shutdown).
- “Water IN” indicate the temperature of inlet evaporator.
- “Water OUT” indicate the temperature of the outlet evaporator.
Pressing the DOWN button takes you to page 02/04
- “Power” show the power output from the unit.
- “ Set Point 1” the set point adjustment.
- “Band 1” the band adjustment.
By using the UP/DOWN-ENTER buttons to select the Set point 1 and/or Band 1
line, it is possible to change the adjustment settings.
17:25 01/04
Standby
Water IN 12.0°C
Water OUT 7.0°C
02/04
Power 70%
Set Point 1 7.0°C
Band 1 1.0°C
03/04
Real Set 7.0°C
Recovery 41.0°C
REM OFF enable NO
04/04
Menu
Reserved menu
HEAT RECOVERY
Pressing the DOWN button takes you to page 03/04.
- “Real Set” indicate the current point of adjustment.
- “Recovery” indicate the inlet heat recovery temperature.
- “REM OFF enable” enable switch off the unit via digital input. This function has
priority over keypad commands. On the RH side of the display YES/NO appears
depending on the enabling of REM OFF .
Pressing the DOWN button takes you to page 04/04.
- “Menu” indicate the access point to the user menu. Pressing Enter, with the
UP/DOWN buttons it is possible to access the following pages (see the table).
-“Reserved menu” is reserved for the support service.
MENU 01/03
Inputs and outputs
Alarms
Date and time
MENU 02/03
Pumps
Circuits
Compressor
MENU 03/04
Condenser
Heat Recovery
Time scheduling
MENU 04/04
Language selection
F1
F2
F1
F2
F1
F2
F1
F2
F1
F2
F1
F2
F1
F2
F1
F2
MONITORING SYSTEM - User menù

11
REM. ON/OFF ENABLE
YES
F1
F2
Real Set 7.0°C
REM OFF enable NO
Menu
F1
F2
REMOTE OFF BY DIGITAL INPUT
To activate this function, select REM OFF enable from the main screen and with the joystick-menu buttons set YES.
NOTE: IF YOU ENABLE REM OFF BY DIGITAL INPUT WHILE THE UNIT IS ON, THE UNIT COULD SWITCH OFF IF THE
1_On/OffRem REMOTE DIGITAL INPUT IS OPEN.
MONITORING SYSTEM - User setting
CONTROL PANEL UNIT ON/OFF
To switch the machine on and off, press the “on/off” function button for a few seconds.
Unit ON-OFF
by control panel REM OFF enable digital input: 1_On/Off REM Unit status
on
No The unit status
not depends by digital input
on
off off
on
Yes
CLOSE (off)
on
off off
on OPEN (on) off
off The unit status
not depends by digital input off

12
MONITORING SYSTEM - User menù
RECOMMENDED SETTINGS : to configure correctly the function ON / OFF from digital input, follow the following guidelines :
CAUTION : THESE OPERATIONS MUST BE PERFORMED BY QUALIFIED PERSONNEL.
- Sure that the parameter REM OFF Enable is set to NO (figura 1).
- Turn off the unit from the control panel and wait until it is displayed the writing Standby.
- Remove power to the electrical panel by bringing the door lock switch in position “0”.
- connect the remote contact to the user terminal within the electrical panel and make sure that contact is closed.
(ref. Electrical schematic of the unit).
- Close the electrical panel.
- Apply power to the electrical panel by bringing the door lock switch in position "1".
- Press the ON / OFF button on the control panel to turn on the machine.
At this point the machine is turned on and is ready to turn the compressors to meet the set-point set.
- Set the parameter REM OFF enable at YES. In this way, digital off contact is enabled.
Opening the contact On/Off REM the unit before shutting down and then in standby.
F1
F2 Real set 7.0°C
REM S/W enable NO
REM OFF enable NO
17:25 01/04
Standby
Water IN 12.0°C
Water OUT 7.0°C
F1
F2
17:25 01/04
Standby
Water IN 12.0°C
Water OUT 7.0°C
F1
F2
17:25 01/04
Cooling
Water IN 12.0°C
Water OUT 7.0°C
F1
F2
REM ON/OFF ENABLE
YES
F1
F2
Real Set 7.0°C
REM OFF enable NO
Menu
F1
F2

13
MONITORING SYSTEM - User setting
REMOTE S/W ENABLE
YES
F1
F2
Real Set 7.0°C
REM S/W enable NO
REM OFF enable NO
F1
F2
CHANGE OPERATING MODE (SUMMER / WINTER) BY DIGITAL INPUT
To activate this function, select REM S/W enable from the main screen and with the joystick-menu buttons set YES.
NOTE: IF YOU ENABLE REM S/W WHILE THE UNIT IS TURNED ON, THE UNIT COULD SWITCH OFF AND CHANGE THE
MODE OF OPERATION IF THE DIGITAL INPUT REM S/W IS OPEN.
LOCAL S/W MODE
COOLING
F1
F2
Set point 1 7.0°C
Band 1 1.0°C
Local mode COOLING
F1
F2
CHANGE OPERATING MODE (hot / cooling) BY CONTROL PANEL
To change the operation mode (hot / cooling) by control panel, select LOCAL MODE from the main screen.
NOTE: THE CHANGE, OF THE OPERATION MODE BY CONTROL PANEL HAS A PRIORITY MORE LOW COMPARED TO
CHANGE THE OPERATION MODE BY DIGITAL INPUT: IF THE DIGITAL INPUTS S/W REM IS OPEN THE UNIT WORK IN
HEAT PUMP REGARDLESS TO CHANGE OPERATING MODE BY CONTROL PANEL.
THE CHANGE OPERATING MODE FROM DIGITAL INPUT HAS PRIORITIES IN RELATION TO CHANGE OPERATING
MODE FROM KEYBOARD: IF THE DIGITAL INPUTS S/W REM IS OPEN THE UNIT WORK IN HEAT PUMP REGARDLESS
TO CHANGE OPERATING MODE FROM KEYBOARD.
Local mode
by control panel REM S/W enable digital input: 14_S/W REM Mode of operation of unit
Cooling
NO the mode of operation of unit,
not depends by digital input
Cooling
Hot Hot
Cooling
YES CLOSE (off) Cooling
Hot
Cooling
YES OPEN (on) Hot
Hot

14
MONITORING SYSTEM - User menù
RECOMMENDED SETTINGS : to properly configure the change mode of operation by digital input, try the following:
CAUTION: THESE OPERATIONS MUST BE PERFORMED BY QUALIFIED PERSONNEL
-Sure that the parameter REM S/W Enable is set to NO.
-Turn off the unit from the control panel and wait until it is displayed the writing Standby.
-Remove power to the board by bringing the door lock switch in position "0".
- Connect the remote contact (summer / winter) to the user terminal within the electrical panel and make sure that contact
is close. (Electrical schematic of the unit).
- Close the electrical panel.
- Apply power to the electrical panel by bringing the door lock switch in position "1"
- Wait for the main page on the control panel.
- Set the local mode of operation at Cooling.
-Set the parameter REM S/W Enable at YES.
(Note: If you set REM S/W Enable = YES and the remote contact Summer / Winter is
- CLOSED (off): the unit is ready for operation at cooling mode
- OPEN (on): 4-way valves immediately reverse cycle-switching
and the unit will be ready for operation at heat-pump mode)
TO PRESS THE ON/OFF BUTTON ON THE CONTROL PANEL, THE UNIT AUTOMATICALLY BEGINS TO OPERATE IN A
MODE ESTABLISHED BY REM S/W DIGITAL CONTACT.
F1
F2 Real set 7.0°C
REM S/W enable NO
REM OFF enable NO
17:25 01/04
Standby
Water IN 12.0°C
Water OUT 7.0°C
F1
F2
F1
F2
03/04
Local mode Cooling
Real set 45.0°C
REM S/W enable NO
F1
F2
03/04
Local mode Cooling
Real set 45.0°C
REM S/W enable YES

15
MONITORING SYSTEM - User setting
SETTING THE OPERATING SET POINT
From the main screen, press the “Up” and “Down” buttons to access Set Point 1 and press ENTER: the “Setpoint 1 chiller
mode” screen will appear. Press ENTER to make the temperature value 7.0°C blink and change it with the “Up” and “Down”
buttons as required. Press ENTER to confirm.
To return to the main screen, press the LEFT (ESC) LEFT (ESC) button several times:
Power 70%
Set Point 1 7.0°C
Band 1 1.0°C
CH SET 1 01/01
Setpoint 1
chiller mode
7.0°C
F1
F2
F1
F2
To modify the Band 1 proceed in a similar manner to the one described for setting the operating SET POINT.
IMPORTANT NOTE:
In “time proportional regulation” is reccomended to keep the band=1°C.

16
TICP: Chiller INC power time (TIME INCREASING COOLING POWER)
TDCP: Chiller DEC power time (TIME DECREASING COOLING POWER)
CB: COOLING BAND
SET POINT: SET POINT TEMPERATURE IN COOLING
The function of the regulator consists in activating a number of resources (power step) in proportion to the time that the evapo-
rator water outlet by spends beyond the threshold given by CHILLER SETPOINT + (BAND / 2). The band is symmetric with
respect to the value of CHILLER SETPOINT.
When the temperature has exceeded the threshold value for the duration of the parameter CHILLER INC POWER TIME, acti-
vate a power step. If the temperature of evaporator water outlet by remains above the threshold value for further TEMPO
POWER INCREASE IN COLD, is another power step.
If the temperature of evaporator water outlet by remain within the temperature range determined by CHILLER SETPOINT +
(BAND / 2) and CHILLER SETPOINT - (BAND / 2) the power output from the machine remains constant.
If the temperature of evaporator water outlet by remains below the threshold CHILLER SETPOINT - (BAND / 2) for the time
given by the parameter CHILLER DEC POWER TIME is a step off power.
In this algorithm there is no hysteresis.
TERMOREGULATION TIME PROPORTIONAL
COOLING MODE (IR)
MONITORING SYSTEM - User setting
TEMPERATURE
WATER OUTLET
TIPF TIPF
+1 +1 +1-1 -1 -1
TDPF TDPF TDPF
TIME
Set
Point
CB
TEMPERATURE READ BY
EVAPORATOR
WATER OUTLET PROBE
CHILLER setpoint
+(BAND / 2).
CHILLER setpoint
- (BAND / 2).
TICP TDCP TDCP TDCP TICP

17
HEATING MODE (IP / IW)
MONITORING SYSTEM - User setting
The function of the regulator consists in activating a number of resources (power step) in proportion to the time that the evapo-
rator water outlet by spends below the threshold given by HEAT PUMP SETPOINT - (BAND / 2). The band is symmetric with
respect to the value of HEAT PUMP SETPOINT.
When the temperature remains below the threshold value for the duration of the parameter HEAT PUMP INC POWER TIME,
activate a power step. If the temperature of evaporator water outlet by remains below the threshold value for further HEAT PUMP
INC POWER TIME, is another power step.
If the temperature of evaporator water outlet by remain within the temperature range determined by HEAT PUMP SETPOINT +
(BAND / 2) and HEAT PUMP SETPOINT - (BAND / 2) the power output from the machine remains constant.
If the temperature of evaporator water outlet by remains above the threshold HEAT PUMP SETPOINT + (BAND / 2) for the time
given by the parameter HEAT PUMP DEC POWER TIME is a step off power.
In this algorithm there is no hysteresis.
+1 +1 +1-1 -1 -1
TIHP: Chiller INC power time (TIME INCREASING HEATING POWER)
TDHP: Chiller DEC power time (TIME DECREASING HEATING POWER)
HB: HEATING BAND
SET POINT: SET POINT TEMPERATURE IN HEATING
TEMPERATURE
WATER OUTLET
TIME
Set
Point
HB
HEATPUMP setpoint
+ (BAND / 2).
HEATPUMP setpoint
- (BAND / 2).
TEMPERATURE READ BY
CONDENSER
WATER OUTLET PROBE
TDHP TIHP TIHP TIHP TDHP

18
HEAT RECOVERY
The recovery function heats water using heat from the condenser that otherwise would be dispersed in the environment:
- In air (air-water units)
- In water (water-water units)
When the machine is in cooling mode (compressors on), if the water in the recovery circuit is of a sufficiently low temperature
to require heat, the machine switches from normal to recovery mode.
When the water temperature reaches the recovery set point, the machine switches back to normal operating mode.
Switching from normal operation to heat recovery and vice versa, takes place:
- respecting the minimum time of operation set for the two modes
- minimize compressor power (screw compressor).
MONITORING SYSTEM - User setting
-AIR-WATER UNIT WATER-WATER UNIT
PARTIAL HEAT
RECOVERY
VP
Units in water-water condensation is unique
for all circuits refrigerator and heat recovery
is always TOTAL.
TOTAL HEAT
RECOVERY
VR
OFF
ON
T
BANDA PROP.
SET
SET - recovery set-point PROP. BAND - proportional band T: Temperature measured by sensor at recovery water inlet
OFF
ON2
ON1
BANDA PROP.
SET
T
OFF
ON
T
BANDA PROP.
SET
PROP. BAND
PROP. BAND
PROP. BAND

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ENABLE
Serves to enable the Recovery function.
Using the MENU joystick buttons, select ENABLE .
RECOVERY 01/02
ENABLE YES
SETPOINT 41.0°C
PROP BAND 2.0°C
F1
F2
RECOVERY ENABLE
YES
F1
F2
To change the YES/NO status, press “Enter” twice:
the value YES will start flashing
- change the value as required using the “Up/Down”buttons.
After changing the value, press “Enter” to confirm and then press “Left” to exit.
SET-POINT
Using the MENU joystick buttons, select the SET POINT parameter.
This parameter is set by default to 41.0 °C.
RECOVERY 01/02
ENABLE YES
SETPOINT 41.0°C
PROP BAND 2.0°C
F1
F2
RECOVERY SETPOINT
41.0 ° C
F1
F2
To change this set-point value, press “Enter” twice:
the value 41.0 ºC will start flashing
- change the set-point value as required using the “Up/Down” buttons.
After changing the value, press “Enter” to confirm and then press “Left” to exit.
MONITORING SYSTEM - User setting
HEAT RECOVERY SETTING THE PARAMETERS
To access the operating parameters for heat Recovery mode, bring on the start screen, scroll through the pages to select the
"Recovery" and press ENTER.
The following items will appear on the display:
• ENABLE
• SET-POINT
• PROP. BAND
• REMOTE
17:25
Off
Water IN 12.0°C
Water OUT 7.0°C
Working Set 7.0°C
Recovery 40.0°C
REM ON-OFF YES
F1
F2
RECOVERY 01/02
ENABLE YES
SETPOINT 41.0°C
PROP BAND 2.0°C
F1
F2
RECOVERY 02/02
REMOTE YES
F1
F2
F1
F2

20
PROP. BAND
Using the MENU joystick buttons, select the PROP. BAND parameter.
This parameter is set by default to 2.0 °C.
RECOVERY 02/02
REMOTE YES
F1
F2
RECOVERY 01/02
ENABLE YES
SETPOINT 41.0°C
PROP BAND 2.0°C
F1
F2
RECOVERY 01/02
ENABLE YES
SETPOINT 41.0°C
PROP BAND 2.0°C
F1
F2
RECOVERY PROP BAND
2.0 ° C
F1
F2
REM RECOVERY ENABLE
YES
F1
F2
To change this set-point value, press “Enter” twice:
the value 2.0 °C will start flashing
- change the value as required using the “Up/Down”buttons.
After changing the value, press “Enter” to confirm and then press “Left” to exit.
REMOTE
Allows the Recovery function to be enabled from a remote digital input.
Using the MENU joystick buttons, select the REMOTE parameter.
To change the YES/NO status press “Enter”twice:
the value will start flashing
- change the value as required using the “Up/Down”buttons.
After changing the value, press “Enter” to confirm and then press “Left” to exit.
MONITORING SYSTEM - User setting