Climma MV8 Manuale utente
Installation, operation
and maintenance
manual
FAN COIL
CONTROL MV8
Rev. 210525
Veco SpA
Installation manual MV8 –Page 2 / 17
Table of contents
1. Introduction........................................................................................................................................................................................ 4
1.1. General information .............................................................................................................................................................. 4
1.2. Product features .....................................................................................................................................................................4
1.3. Directives ................................................................................................................................................................................... 4
1.4. Installation................................................................................................................................................................................. 4
1.5. Transport and handling ....................................................................................................................................................... 4
1.6. Unpacking ................................................................................................................................................................................. 4
1.7. General safety.......................................................................................................................................................................... 5
2. INSTALLATION...................................................................................................................................................................................6
2.1. Climma MV8 control technical features........................................................................................................................6
2.2. Positioning of the MV8 control ........................................................................................................................................ 7
2.3. Fixing the MV8 control......................................................................................................................................................... 7
3. SETTING THE MV8 CONTROL...................................................................................................................................................... 8
3.1.1. DIP switch setting.............................................................................................................................................................. 8
3.1.2. MV8 configuration for the C-Touch control panel..............................................................................................9
4. ELECTRICAL CONNECTION.........................................................................................................................................................10
4.1.1. Sicurezza.............................................................................................................................................................................10
4.1.2. Electrical supply ...............................................................................................................................................................10
4.1.3. Connection schematic...................................................................................................................................................11
4.1.4. Fresh water temperature probe CO.........................................................................................................................12
4.1.5. Probe CO on Fan coil –Fan only configuration..................................................................................................12
4.1.6. Probe CO on Fan coil –Water valve configuration ...........................................................................................12
4.1.7. Multiple MV8 controls with a single digital control panel .............................................................................12
4.1.8. Modbus communication..............................................................................................................................................13
5. Operation...........................................................................................................................................................................................14
5.1. Control panel identification .............................................................................................................................................14
6. Maintenance.....................................................................................................................................................................................15
7. TROUBLESHOOTING.....................................................................................................................................................................16
7.1. The digital panel shows n.Pr ...........................................................................................................................................16
7.2. The digital panel shows Err.............................................................................................................................................16
7.3. Product identification .........................................................................................................................................................16
7.4. Fuses..........................................................................................................................................................................................16
7.5. Supply check ..........................................................................................................................................................................16
7.6. The fan doesn’t work ..........................................................................................................................................................16
7.7. Erratic fan speed control ...................................................................................................................................................16
8. TECHNICAL CHARACTERISTICS ...........................................................................................................................................17
Veco SpA
Installation manual MV8 –Page 3 / 17
8.1. Fan speed capacitors ..........................................................................................................................................................17
8.2. Capacitor values for Climma Fan coils.........................................................................................................................17
8.3. Relays combination on MV8 board ..............................................................................................................................17
8.4. Part numbers of standard spares for MV8 control .................................................................................................17
Veco SpA
Installation manual MV8 –Page 4 / 17
1. Introduction
1.1.General information
Thank you for choosing our MV8 control for Fan Coil !
1.2.Product features
The MV8 control for Fan Coil units has the following features:
The MV8 control connected to a digital panel MK2 or C-Touch permits to operate any Climma Fan coil with
a complete range of functions. The 8 speed control is made by means of capacitors with a perfect and totally
quiet control of the speeds from the minimum to the maximum speed. The MV8 control can manage also fan
coils with the water valve option and electrical heater.
The MV8 control accepts the supply of 230V either 50 or 60 Hz.
1.3.Directives
The Climma MV8 control respects the following directives.
• CE
• Low voltage: 2006/95/EC
• Electromagnetic Compatibility: 2004/108/EC
• Machinery Directive: 2006/42/CE
• Manufacturing quality Standards UNI EN ISO 9001:2008
1.4.Installation
The MV8 control must be installed following the instructions and specifications given in this manual.
1.5.Transport and handling
Take every precaution to prevent damage, when handling the unit or components keep in consideration the
information given on the packaging material.
1.6.Unpacking
The MV8 control is carefully packed in a strong carton box. Remove all the carton and the other packing
material. Check that the product has not been damaged.
Caution: Wear protective gloves when handling any packing materials and the wood base. Dispose of all
packaging materials appropriately in accordance with local codes.
WARNING!
Check that the technical specifications on the label are compatible with the Fan coil.
Veco SpA
Installation manual MV8 –Page 5 / 17
1.7.General safety
Injuries or accidents caused by failure to comply with the recommendations of this manual are solely
the responsibility of the unit operator.
Basic Rules for Safe Operation:
• do not touch the unit with moist or wet hands or feet;
• never operate the unit while barefoot;
• before installation and maintenance operations, disconnect the unit from the power supply. failure to
comply may result in injury or death;
• installation and maintenance of this system can be hazardous due to system working pressure and
electrical components. Only a Climma certified service centre should install and maintain the system;
• to minimize the hazard of electrical shock and personal injury, this component must be effectively
grounded;
• during installation and maintenance follow safety codes, wear safety glasses and work gloves.
Veco SpA
Installation manual MV8 –Page 6 / 17
2. INSTALLATION
The MV8 control must be installed in the nearby of the Fan coil which is equipped by a 3 m long cable.
2.1.Climma MV8 control technical features
The speed control of the Fan coil fan is obtained with 3+1 relays which connect individually or in
combination, the capacitors to the fan motor. There is also a relay to control the water valve and another
relay to power the electrical resistor.
The digital control panel is connected to the MV8 control by means of a cable RJ45 while the optional
ambient probe is connected to the control by a cable RJ12. The MV8 has another RJ12 to be used when
multiple boards are connected in parallel using the same digital panel.
The MV8 control has also a socket for the Modbus communication.
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Installation manual MV8 –Page 7 / 17
2.2.Positioning of the MV8 control
When choosing the position consider that the original cable supplied with the Climma Fan coil is di 3m long.
The control box MV8 has an IP20 grade protection, therefore it must be protected from splashing and
possible water dropping.
The control box can be installed horizontally or vertically.
2.3.Fixing the MV8 control
The fixing must be carried out using the special brackets supplied with the box and which allow the box to be
fixed without removing the electronic board. The brackets are fixed to the back of the box using the screws
provided. There are 6 fixing positions. The brackets extend 27 mm from the box profile.
Veco SpA
Installation manual MV8 –Page 8 / 17
3. SETTING THE MV8 CONTROL
3.1.1. DIP switch setting
The MV8 control must be set to adapt to the type of operation of the fan coil.
The types of operation are as follows:
PR0 - Fan Only: when the ambient temperature reaches the set point the MV8 control stops the fan.
PR1 - Water valve: when the ambient temperature reaches the set point the control closes the water valve and
drops the fan speed to the minimum.
PR2 - Water valve + strip heater: similar behaviour for the cool mode; when instead the ambient temperature
drops below the set point the MV8 control powers the electrical heater.
The setting is made by means of two dip switches identified in the picture:
The MV8 board comes non programmed and the 2 dip switches are both in OFF which corresponds to NPR
–No Program.
SET the dip switches of the MV8 control to comply to the configuration of the Fan coil.
Veco SpA
Installation manual MV8 –Page 9 / 17
3.1.2. MV8 configuration for the C-Touch control panel
The Climma C-Touch panel allows you to read on the display the fresh water temperature detected by the
CO sensor installed at the inlet of the fan coil and connected to the MV8 board.
This function is not available on the MK2 panel and on the first version of C-Touch. On the MV8 2019 board
there is a jumper that enables or disables this function and therefore makes the C-Touch compatible or not.
Veco SpA
Installation manual MV8 –Page 10 / 17
4. ELECTRICAL CONNECTION
4.1.1. Sicurezza
AVOID THE RISK OF THE ELECTROCUTION !!!
Only qualified staff can execute the troubleshooting and the repair. Keep isolated from the
ground during the execution of the electrical operations, wearing dry clothes, rubber shoes,
rubber carpets, etc.... Don’t check wires under voltage if none can bring help.
IMPORTANT NOTE
To avoid possible electrical shocks, that can cause harm or death to people, execute the
grounding of the air conditioning system, as indicated:
1- Use a suitable electrical cable with ground wire section and isolation to give the charge
from the switch on the control board of the boat to the electrical box of the system. The
ground wire must be correctly connected to the ground terminal of the panel.
2- Check that the ground connection between the electrical box and the air-conditioner
hasn’t suffer any damage during the transport.
3- Check that the connection of the water pump to the suitable terminal of the electrical box
includes also the ground connection.
4- Check the ground continuity before switching on the air-conditioner.
4.1.2. Electrical supply
Check that the ship’s supply meets the MV8 control supply which is 230V-50/60 Hz.
Indice
