MPE
26
4
5
All copying, even partial, of this manual is strictly forbidden
RG66007169 - Rev 00
3
PLUMBING AND ELECTRICAL CONNECTIONS
3.2 ELECTRICAL
CONNECTIONS
All operations must be performed by qualified service personnel in accordance with current laws and regulations. For any electrical work on the unit, refer
to the electric diagrams supplied with the unit.
It is recommended to make sure that:
- The characteristics of the mains power supply are adequate for the electrical inputs specified in the table of electrical data.
Warning
Before carrying out any job on electrical parts, make sure the power supply is disconnected. Check that the mains electricity supply
is compatible with the specifications (voltage, number of phases, frequency) shown on the unit rating plate. The supply voltage may not undergo
fluctuations exceeding ±5% of the rated voltage. The electrical connections must be made in accordance with the wiring diagram provided with the
unit and the regulations in force.
Warning
Never attempt to modify internal electrical connections: any undue modifications will immediately invalidate the warranty.
Important!
An all-pole circuit breaker must be used on the electric panel upstream, conform to IEC Standards (contacts must be open at least of 3
mm), with suitable interruption capacity and differential protection, according to the electrical data table described below, and installed as close as
possible to the device. For the machine power supply line, use H07RN-F rubber flexible cables, with section as indicated in the table. For the cable
passage, use sheaths and channels suitable for outdoor installation. Provide a line switch and delayed-type fuses with features as indicated in the table.
Important!
Upstream from the electric control board, you must provide a switch with a delayed fuse meeting the specifications indicated in the table
To access the electric control board it is necessary to remove the inspection panel (figure 4) by taking out the screws; introduce the power cable into
the unit through the bushing on the side panel; then bring it to the electric control board through the cable holder provided.
Important!
Tighten the wires securely to the terminals and clamp the cable in place with the cable holder (figure 5).
Important!
Make sure that the length of cable inside the unit enters the bushing from below: this is necessary to prevent rainwater from dripping inside
the unit.
Important!
To preserve the protection degree of the machine, use a cable gland compatible with the sheath or power cable diameter, in correspondence
to the unit side panel hole.
Important!
An earth connection is mandatory: connect the earthing wire to the terminal provided on the electric control board (see the electric control
board layout supplied with the unit ), marked .
Important!
If you wish to include:
-
a remote on/off switch
-
a remote switch for changing over between the cooling and heating mode (
MPE H
only),
-
a remote alarm indicator
it is a good idea to do so at this stage of the installation procedure, by connecting the switches or PCDS remote control (accessory) to the electric
control board terminals as directed in section 3.3 and using the unit wiring diagram as your reference.
MPE
004M
005M
007M
008
M 008 010
M 010 013 015 018 020 024 027 028
Power cables
mm
2
4 4 6 6 4 6 4 4 4 6 6 10 10 10
Safety fuse
F
A 16 16 20 25 10 32 16 20 20 25 25 32 32 32
Circuit breaker
IL
A 20 20 25 25 16 32 20 25 25 25 25 32 32 32
MPE
032
035 040 054 066 T30 T34 T40 T45 T54 T61 T69 T76
Power cables
mm
2
10 10 10 16 16 10 16 16 16 16 16 16 25
Safety fuse
F
A 32 40 40 50 50 40 50 63 63 63 63 63 80
Circuit breaker
IL
A 40 40 50 63 63 50 50 63 63 63 63 63 80
