MIUM0001_REV01_ RKB_20140130 MIUM ENG.docx
12
Electrical connections
Qualified personnel according to the supplied schemes must carry out the electrical connections at the control
panel.
Insure that the voltage and the frequency shown on the technical plate correspond to the connecting power
supply.
For the general power supply of the unit, and its accessories, the use of adapters, multiple plugs and extension
leads is to be avoided.
It is the responsibility of the installer to insure that the installation of the unit is as close as possible to
the mains power supply, or sufficiently close to protect the electrical parts.
Connect the unit to an efficient power point, using the correct screws as supplied with the unit.
In the unit with relay board the screws of the connectors must be screwed with torx equal to 0,5 Nm
6
–
W
IRING
D
IAGRAMS
Follow wiring diagram attached to every unit as a sticker inside the electrical plastic box.
For connection the unit to accessory LVN (relay power box), RCV (3 step fan speed control) and CVU (step fan speed
selector), please see the diagrams attached to the unit.
7
–
S
TANDARD
M
AINTENANCE
It is the responsibility of the User to carry out all types of maintenance operations.
Only personnel previously trained and qualified may carry out maintenance operations.
Should the unit require disassembly, hand protection is required
Maintenance is of extreme importance if the plant is to operate in a regular way and give fade-free service. Have
maintenance work done by qualified and authorized personnel, according to EU Regulation 303/2008 of 2 April 2008
(and later) that requires companies and technicians that perform maintenance / repair, leakage checking and recovery /
recycling gases must be certified as required by local regulations. Comply with the safety precautions given in the
relative section of this manual and take all the necessary precautions. The following information is only a guide for the
end user.
Maintenance keeps unit efficiency, reduce the speed of deterioration over time and collect information and data to
understand the efficiency of the unit and prevent failures. We suggest to prepare a booklet of installation according
European legislation. Provide a machine book that allows you to track of the actions taken on the unit, so it will be easier
to cadence adequately the various interventions and will facilitate a possible troubleshooting.
Please take note of: date, type of action, description of action, measurements performed, anomalies identified, alarms
registered in the alarm history, etc. ...
Before starting any operation, insure that the general power supply has been isolated.
All the electrical connections must be protected at the source by the installer.
Follow the connection of the unit and its accessories using adequate cabling for the power used, and
respecting the country regulations. The dimensions of the cabling must be sufficient to support a
voltage drop in start up phase inferior to 3% of the nominal.
BEFORE FOLLOWING ANY TYPE OF MAINTENANCE OPERATION, BE CERTAIN THAT THE UNIT MAY NOT
CASUALLY OR ACCIDENTALLY BE CONNECTED TO THE ELECTRICAL MAINS SUPPLY. THERFORE IT IS
NECESSARY TO SHUTDOWN THE UNIT’S POWER SUPPLY AD PRIOR TO MAINTENANCE.
