EVCO EPU2BXP1S1 User Manual
EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
EVCO
c-pro 3 micro SAVE
c-pro 3 kilo SAVE
PROGRAMMABLE CONTROLLER FOR AIR
HANDLING UNITS WITH CROSS FLOW
HEAT RECOVERY EXCHANGER
ENGLISH
APPLICATION MANUAL ver. 1.0
CODE 144CP3UKSAE104
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EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
EVCO
Important
Important
Read this document thoroughly before installation and before use of the device and follow all recommendations; keep
this document with the device for future consultation.
The following symbols support reading of the document:
indicates a suggestion
indicates a warning.
The device must be disposed of in compliance with local Standards regarding the collection of electric and electronic
equipment.
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EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
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Index
1. GENERALITIES ........................................................................................................................................ 5
1.1
Description..................................................................................................................................... 5
2. DIMENSIONS AND INSTALLATION ............................................................................................................. 6
2.1
Dimensions .................................................................................................................................... 6
2.1.1 Dimensions of the control module c-pro 3 micro SAVE ..................................................................... 6
2.1.2 Dimensions of the control module c-pro 3 kilo SAVE ........................................................................ 6
2.1.3 Dimensions of the Vgraph user interface ........................................................................................ 7
2.2
Installation ..................................................................................................................................... 7
2.2.1 Installation of the control module c-pro 3 micro SAVE/c-pro 3 kilo SAVE ............................................ 7
2.2.2 Installation of the Vgraph user interface ........................................................................................ 8
3. Applications ............................................................................................................................................ 9
3.1
COMPACT Solution (make sure parameter PG00 has value 1; that is factory setting) ............................... 9
3.1.1 I/O Configuration with 3-speed fans .............................................................................................. 9
3.1.2 I/O Configuration with 1-speed fans with more speed variator ........................................................ 12
3.2
COMPLETE Solution (make sure parameter PG00 has value 2) ........................................................... 14
3.2.1 I/O Configuration with 3-speed fans ............................................................................................ 14
3.2.2 I/O Configuration with 1 speed fans + speed variator .................................................................... 17
4. User interface ....................................................................................................................................... 20
4.1
Display and keyboard .................................................................................................................... 20
4.1.1 Vgraph interface ....................................................................................................................... 20
4.2
List of pages ................................................................................................................................ 21
4.2.1 Main Menu ............................................................................................................................... 21
4.2.2 Password ................................................................................................................................. 21
4.2.3 User Menu ............................................................................................................................... 22
4.2.4 Installer Menu .......................................................................................................................... 22
4.2.5 RTC Menu ................................................................................................................................ 23
4.2.6 Manufacturer Menu ................................................................................................................... 23
4.2.7 Main OFF page ......................................................................................................................... 24
4.2.8 Main ON page .......................................................................................................................... 25
4.2.9 State Pages ............................................................................................................................. 26
4.2.10
Alarm pages ........................................................................................................................ 26
4.2.11
Log pages ............................................................................................................................ 26
4.2.12
Project and Firmware Versions ............................................................................................... 27
5. Configuration parameters ....................................................................................................................... 28
5.1
COMPACT solution list of configuration parameters ............................................................................ 28
5.2
COMPLETE solution list of configuration parameters .......................................................................... 34
6. REGULATIONS ...................................................................................................................................... 42
6.1
State of the unit ........................................................................................................................... 42
6.1.1 OFF state for alarm ................................................................................................................... 43
6.2
Unit Type ..................................................................................................................................... 43
6.3
RTC setting .................................................................................................................................. 43
6.4
Restore the (factory) default parameters ......................................................................................... 44
6.5
Last maintenance operation date .................................................................................................... 44
6.6
Programming key ......................................................................................................................... 45
6.7
Functionality of the COMPACT control solution .................................................................................. 46
6.7.1 Supply and return fans .............................................................................................................. 46
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EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
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6.7.2
Recovery heat exchanger anti-freeze protection ........................................................................... 47
6.7.3 Cross flow recovery heat exchanger and by-pass damper .............................................................. 49
6.8
Features of the COMPLETE control solution ....................................................................................... 50
6.8.1 Post-Ventilation ........................................................................................................................ 50
6.8.2 Differential pressure switch ........................................................................................................ 50
6.8.3 Fresh air intake damper ............................................................................................................. 51
6.8.4 Damper mixing room ................................................................................................................ 51
6.8.5 Heating ................................................................................................................................... 52
6.8.6 Heat exchanger by-pass in summer mode (Free-Cooling) .............................................................. 54
6.8.7 Modulation of the air flow with CO2 probe .................................................................................... 55
6.8.8 Adjusting the static pressure ...................................................................................................... 55
6.8.9 Heating control depending on Return Air Temperature ................................................................... 56
6.8.10
Alarm fire/smoke .................................................................................................................. 56
7. DIAGNOSTICS ...................................................................................................................................... 56
7.1
Manual and automatic reset alarms ................................................................................................. 57
7.1.1 Manual reset alarms .................................................................................................................. 57
7.1.2 Automatic reset alarms ............................................................................................................. 57
7.2
Alarms table ................................................................................................................................. 57
7.3
General alarm relay ...................................................................................................................... 58
7.4
Alarms log ................................................................................................................................... 58
8. MODBUS VARIABLES ............................................................................................................................. 60
8.1
ModBus exporting table ................................................................................................................. 60
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EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
EVCO
1. GENERALITIES
1.1 Description
The application is dedicated to the control and regulation of the Air Handling Units with cross flow recovery heat
exchanger. There are two solutions available:
• COMPACT Control: Responds to minimum requirements and the Standards.
• COMPLETE Control: Integrates the heating and high recovery efficiency functions to the Base solution.
The solution makes use of the large modularity of the c-pro 3 micro SAVE/c-pro 3 kilo SAVE
The c-pro 3 micro SAVE/c-pro 3 kilo SAVE controller has the following I/O:
• Digital outputs: 9
• Digital inputs: 9
• Analogical inputs: 9
• Analogical outputs: 6
Both instruments are equipped with CAN field port and a second RS485 serial interface (Modbus) allows connection to
BMS or EVCO (RICS) supervision systems.
The main control functions managed by the “Complete” solution are:
- Supply fan management
- Return fan management
- Management of the cross flow recovery heat exchanger by-pass damper
- Outside air damper management
- Management damper mixing room
- Management of hot water coil for heating (or a group of 3 electric heaters)
- Management of time bands with ECONOMY and COMFORT working mode
- CO
- Alarms log
- User Menu split in three main levels (User, Installer, Manufacturer), each protected by a different password.
- Multilanguage user menu (English, Italian, French)
probe management for fan control
2
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EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
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2. DIMENSIONS AND INSTALLATION
2.1 Dimensions
2.1.1 Dimensions of the control module c-pro 3 micro SAVE
4 DIN modules;
dimensions are in mm (in). Terminal blocks molex-fit.
2.1.2 Dimensions of the control module c-pro 3 kilo SAVE
4 DIN modules;
dimensions are in mm (in). Terminal blocks removable spring
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EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
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2.1.3 Dimensions of the Vgraph user interface
The dimensions are expressed in mm (in).
Dimension Minimum Typical Maximum
A 104.0 (4.094) 104.0 (4.094) 104.8 (4.125)
B 70.0 (2.755) 70.0 (2.755) 70.8 (2.787)
C 22.0 (0.866) 23.0 (0.905) 24.0 (0.944)
D 40.8 (1.606) 41.8 (1.645) 42.8 (1.685)
2.2 Installation
2.2.1 Installation of the control module c-pro 3 micro
SAVE/c-pro 3 kilo SAVE
On DIN guide 35.0 x 7.5 mm (1.377 x 0.295 in) or 35.0 x 15.0 mm (1.377 x 0.590 in).
Operate as indicated in the drawing below to install the devices.
1 2
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EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
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To remove the devices, first remove any terminal board with extractable screws inserted in the lower part and then
operate on the DIN guide clip using a screwdriver, as indicated in the following drawing.
3 4
2.2.2 Installation of the Vgraph user interface
Installation is envisioned:
- on panel
- recessed in the wall in traditional box (506 E type)
- on the wall, on the EVCO CPVW00 support (to be ordered separately).
The following drawing illustrates panel installation, with 4 screws (supplied).
The EVCO CPVP* plaques can be applied to the terminal front panel (to be ordered separately, in plastic and available
in two colours, black and white).
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EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
EVCO
3. Applications
3.1 COMPACT Solution (make sure parameter PG00 has
value 1; that is factory setting)
The picture above shows a principle layout. It is intended for indicating the presence of the components, not their
position, in the AHU controlled by the EVCO device. It is also NOT intended for indicating the real layout of the AHU.
The unit has the following main features:
• N° 2 Fans with 3 speeds or with 1 speed + speed variator
• N° 1 Heat exchanger/Cross flow recovery heat exchanger
• N° 1 Recovery heat exchanger By-pass damper (optional)
• N° 1 Recovery heat exchanger anti-freeze temperature probe
• N° 1 Presence sensor (installed in the room)
• N° 1 Start – Stop (remote)
Note: The compact solution is by default configured for piloting 3-speed fans (PG10 = DO)
3.1.1 I/O Configuration with 3-speed fans
c-pro 3 micro SAVE/ c-pro 3 kilo SAVE
I/O Description
Analogue inputs
AI 1 Anti-freeze Temperature Probe (Recovery heat exchanger By-Pass) NTC
AI 2 Not used
AI 3 Not used
AI 4 Not used
AI 5 Not used
AI 6 Not used
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EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
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AI 7 Not used
AI 8 Not used
AI 9 Not used
Serial ports
RS485 RS485 Modbus RTU
CAN bus To Vgraph
Digital inputs
DI 1 Presence sensor
DI 2 Start – Stop (remote)
DI 3 Supply fan thermal protection
DI 4 Return fan thermal protection
DI 5 Not used
DI 6 Not used
DI 7 Not used
DI 8 Not used
DI 9 Not used
Analogue outputs
AO 1 Not used
AO 2 Not used
AO 3 Recovery heat exchanger BY-PASS damper control (0-10 V) *
AO 4 Not used
AO 5 Not used
AO 6 Mixing room damper control (0-10 V)
Digital Outputs (Relay)
DO 1 Return fan first speed
DO 2 Return fan second speed
DO 3 Return fan third speed
DO 4 Supply fan first speed
DO 5 Supply fan second speed
DO 6 Supply fan third speed
DO 7 Recovery heat exchanger BY-PASS damper control *
DO 8 Not used
DO 9 Not used
(*) The recovery heat exchanger BY-PASS damper control can be analogic or digital, and
setting with clock
RTC system clock - Real Time Clock.
For driving the 3-speed fans (Digital output) set PG10=DO
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EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
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Electric connections with 3-speed fans
Note: These connections are also valid for the version, only changes the type of terminal and the supply voltage.
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EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
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3.1.2 I/O Configuration with 1-speed fans with more speed
variator
c-pro 3 hecto + CAN with 2 A/O V+V
I/O Description
Analogue inputs
AI 1 Anti-freeze Temperature Probe (Recovery heat exchanger By-Pass) NTC
AI 2 Not used
AI 3 Not used
AI 4 Not used
AI 5 Not used
AI 6 Not used
AI 7 Not used
AI 8 Not used
AI 9 Not used
Serial ports
RS485 RS485 Modbus RTU
CAN bus To Vgraph
Digital inputs
DI 1 Presence sensor
DI 2 Start – Stop (remote)
DI 3 Supply fan thermal protection
DI 4 Return fan thermal protection
DI 5 Not used
DI 6 Not used
DI 7 Not used
DI 8 Not used
DI 9 Not used
Analogue outputs
AO 1 Not used
AO 2 Not used
AO 3 Recovery heat exchanger BY-PASS damper control (0-10 V) *
AO 4 Return fan control signal (0-10 V)
AO 5 Supply fan control signal (0-10 V)
AO 6 Mixing room damper control (0-10 V)
Digital Outputs (Relay)
DO 1 Return fan (speed 0) enabling
DO 2 Supply fan (speed 0) enabling
DO 3 Not used
DO 4 Not used
DO 5 Not used
DO 6 Not used
DO 7 Recovery heat exchanger BY-PASS damper control *
DO 8 Not used
DO 9 Not used
(*) The recovery heat exchanger BY-PASS damper control can be analogic or digital, and
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setting with clock
EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
EVCO
RTC system clock - Real Time Clock.
For driving the 3-speed fans (Digital output) set PG10=DO
Electric connections with 1 speed fans + variator
Note: These connections are also valid for the version, only changes the type of terminal and the supply voltage.
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EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
EVCO
3.2 COMPLETE Solution (make sure parameter PG00
has value 2)
The picture above shows a principle layout, it is intended for indicating the presence of the components, not their position, in
the unity controlled by the EVCO device.
The following are added to the functions and parts of the COMPACT version:
- High efficiency Recovery heat exchanger/Heat exchanger
- Differential pressure switch
- Electric heaters protection
- Electric heaters option or Hot water coil option (parameter PG02)
- Outside air damper option (parameter PG04)
- Summer By-Pass damper option (parameter PG08)
- Outdoor Air Temperature Probe
- Return Air Temperature Probe
- Supply Air Temperature Probe
- CO
and air quality sensor for automatic fan speed modulation option
2
- Heating control based on return temperature probe
Notes
• The electric heaters can be used instead of (not together with) the how water coil
• The complete solution is by default configured for controlling the 3-speed digital fans (PG10 = DO)
3.2.1 I/O Configuration with 3-speed fans
c-pro 3 micro SAVE/ c-pro 3 kilo SAVE
I/O Description
Analogue inputs
AI 1 Anti-freeze Temperature Probe (Recovery heat exchanger By-Pass) NTC
AI 2 Supply Air Temperature Probe - NTC
AI 3 Return Air Temperature Probe - NTC
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AI 4 Outdoor Air Temperature Probe - NTC
AI 6 Not used
AI 6 Not used
AI 7 CO2 probe (0-10 V) (Optional)
AI 8 Pressure probe 1 (0-10 V) (Optional)
AI 9 Pressure probe 2 (0-10 V) (Optional)
Serial ports
RS485 Modbus RTU
CAN bus To Vgraph
Digital inputs
DI 1 Presence sensor
DI 2 Start – Stop (remote)
DI 3 Supply fan thermal overload (protection) (3 in series)
DI 4 Return fan thermal overload (protection) (3 in series)
DI 5 Differential pressure switch
DI 6 Hot water coil anti-freeze thermostat
DI 7 Fire/Smoke
DI 8 Outside air damper limit switch (full open)
DI 9 Outside air damper limit switch (full closed)
Analogue outputs
AO 1 Heating coil electrical resistance (0-10V / PWM)
AO 2 Hot water coil modulating valve control (0-10 V)
AO 3* Recovery heat exchanger BY-PASS damper control (0-10 V)
AO 4 Not used
AO 5 Not used
AO 6 Mixing room damper control (0-10 V)
Digital Outputs (Relay)
DO 1 Return fan first speed
DO 2 Return fan second speed
DO 3 Return fan third speed
DO 4 Supply fan first speed
DO 5 Supply fan second speed
DO 6 Supply fan third speed
DO 7* Recovery heat exchanger BY-PASS damper
DO 8 Outside air damper
DO 9 Generic alarm (can be configured)
DO 10 Not used
DO 11 Not used
(*) The recovery heat exchanger BY-PASS damper control can be analogic or digital, and
setting with clock
RTC system clock - Real Time Clock.
For driving the 3-speed fans (Digital output) set PG10=DO
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EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
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Electric connections with 3-speed fans
Note: These connections are also valid for the version, only changes the type of terminal and the supply voltage.
page 16 of 68
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3.2.2 I/O Configuration with 1 speed fans + speed variator
c-pro 3 micro SAVE/ c-pro 3 kilo SAVE
I/O Description
Analogue inputs
AI 1 Anti-freeze Temperature Probe (Recovery heat exchanger By-Pass) - NTC
AI 2 Supply Air Temperature Probe - NTC
AI 3 Return Air Temperature Probe - NTC
AI 4 Outdoor Air Temperature Probe - NTC
AI 5 Not used
AI 6 Not used
AI 7 CO2 probe (0-10 V) (Optional)
AI 8 Pressure probe 1 (0-10 V) (Optional)
AI 9 Pressure probe 2 (0-10 V) (Optional)
Serial ports
RS485 RS485 Modbus RTU
CAN bus To Vgraph
Digital inputs
DI 1 Presence sensor
DI 2 Start – Stop (remote)
DI 3 Supply fan thermal overload (protection) (3 in series)
DI 4 Return fan thermal overload (protection) (3 in series)
DI 5 Differential pressure switch
DI 6 Hot water coil anti-freeze thermostat
DI 7 Fire/Smoke
DI 8 Outside air damper limit switch (full open)
DI 9 Outside air damper limit switch (full closed)
Analogue outputs
AO 1 Not used
AO 2 Hot water coil modulating valve control (0-10 V)
AO 3* Recovery heat exchanger BY-PASS damper control (0-10 V)
AO 4 Return fan control signal (0-10 V)
AO 5 Supply fan control signal (0-10 V)
AO 6 Mixing room damper control (0-10 V)
Digital Outputs (Relay)
DO 1 Return fan (speed 0)
DO 2 Supply fan (speed 0)
DO 3 Not used
DO 4 Electric heaters step 1
DO 5 Electric heaters step 2
DO 6 Electric heaters step 3
DO 7* Recovery heat exchanger BY-PASS damper
DO 8 Outdoor air damper
DO 9 Generic alarm (can be configured)
(*) The recovery heat exchanger BY-PASS damper control can be analogic or digital, and
page 17 of 68
setting with clock
EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
EVCO
RTC system clock - Real Time Clock.
For driving the 3-speed fans (Digital output) set PG10=DO
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EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
EVCO
Electric connections with 1 speed fans + variator
Note: These connections are also valid for the version, only changes the type of terminal and the supply voltage.
page 19 of 68
EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
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4. User interface
4.1 Display and keyboard
Both control solutions (compact and complete) use the Vgraph user terminal equipped with LCD graphic display
128x64 pixel and 6 keys. The terminal can be panel mounted (IP 65 with optional gasket) on the unit or remote using
EVCO wall box or in wall recess boxes type “506”. Besides the EVCO front plates it is possible to use BTicino “Living” or
“Light” series plates.
4.1.1 Vgraph interface
The interface is connected via CAN to the controller
The keyboard has 6 keys for page navigation and editing values, with the following meaning:
- UP and DOWN: in editing they modify the parameter values, otherwise they move the cursor. If the DOWN
button is pushed for about 2 seconds the buzzer is silenced.
- LEFT and RIGHT: display of the masks in succession.
- ENTER: in editing it confirms the value, otherwise it sends any control associated to the text where the cursor
is positioned. If an alarm page is being displayed pushing this key for about 2 seconds causes the alarm
reset. If the alarms pages are being displayed a short push moves to the following active alarm.
- ESC: in editing it cancel the modification, otherwise it requests for default page associated to the current
page. If the ESC key is pressed for about 2 seconds the unit is switched on/off.
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EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
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4.2 List of pages
This paragraph presents the main pages and menus present in the application. The general menu is divided into three
levels: user, installer and manufacturer, there is also a menu for the management of the system clock and some free
access state pages. The menus have the following structure:
⋅ Main Menu
⋅ User Menu (Level 1, level 1 password)
⋅ Installer Menu (Level 2, level 2 password)
o Clock branch installer menu
o Maintenance branch installer menu
o Fans branch installer menu
o Heating elements branch installer menu
o Free-cooling branch installer menu
o Safety device branch installer menu
o Various device branch installer menu
o Default branch installer menu (level 3, only with unit OFF)
⋅ Manufacturer Menu (Level 3, level 3 password, only with unit OFF)
o Configuration branch manufacturer menu
o Fans branch manufacturer menu
o Heating elements branch manufacturer menu
o Outdoor air damper branch manufacturer menu
o Recovery heat exchanger branch manufacturer menu
o Safety device branch manufacturer menu
o Various branch manufacturer menu
4.2.1 Main Menu
The main menu is the access point for all other system menus.
It is possible to display this menu from any point of the user interface pushing the ENTER key for about 2 seconds.
From this page it is possible to enter the other menu using the UP and DOWN keys and pushing the ENTER key to
confirm. By pushing the ESC key on this page it is possible to go back to the main page of the application.
4.2.2 Password
Each menu has an associated level (except clock and log) with a relevant password for accessing to the various
functions present in that menu. Once the correct password has been entered the protected function can be accessed.
Two effects are obtained by entering a password correctly:
⋅ release of the correlated level
⋅ release of the sub-levels
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