6
ELECTRICAL INSTALLATION
Installation, user and maintenance manual – AY Condensing line, AY Series
35
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multiple appliance plants
SINGLE APPLIANCE PLANTS
The appliance must be connected to a 230 V 1N - 50 Hz power supply, as follows (see example in Figure 6.3
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35):
You will need: the appliance connected hydraulically; external electrical panel configured by the installation technician.
Necessary equipment and materials.
Make sure that the electrical panel configured by the technician is equipped with a 2 pole circuit breaker with minimum air
gap of 3 mm, and a 2A type T fuses.
1.
Remove the appliance's front panel and open the electrical panel by removing the bolts securing it.
2.
Prepare a cable of the FG7(O)R 3Gx1.5 type for the power supply to the appliance.
3.
Locate terminal block "MC" inside the panel and hook up as shown in the figure.
4.
On completion, restore the appliance to its fully assembled condition.
The insertion of relays or other electrical components inside the General Electrical Panel of the appliance is not permitted.
Do not activate the appliance if the hydraulic plant has not been filled.
Figure 6�3 – connection to electrical mains (230 V 1N - 50 Hz)
Example of connection of no. 1 appliance to the mains.
LEGEND
MC
power terminal block
GS
Master 2-pole power switch
F
Fuse/s
N
Neutral terminal
Ground
ground terminal
L
single-phase line terminal
Disconnect the appliance from the electrical power supply via the external disconnecting switch only after having per-
formed the shutdown cycle (via the DDC or consent switch) and having waited for it to terminate (approximately 3 minutes).
Make sure the ground cable is longer than the live cables. In this way it will be the last wire to be pulled away if the mains
cable should accidentally be pulled, and will thus guarantee the ground connection. Do not use gas pipes to ground
electrical appliances.
A wiring error, as well as impeding the correct operation of the appliance, could also damage the electrical apparatus that
it contains.
MULTIPLE APPLIANCE PLANTS
The appliance must be connected to a 230 V 1N - 50 Hz power supply, as follows (see example in Figure 6.4
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36):
You will need: the appliances hydraulically connected; the external electrical panel configured by the installation techni-
cian. Necessary equipment and materials.
Make sure that the electrical panel configured by the technician is equipped with a 2 pole circuit breaker with minimum air
gap of 3 mm, and two type T fuses of suitable rating.
1.
On each appliance, remove the front panel and open the electrical panel by removing the bolts securing it.
2.
For each appliance, provide a FG7(O)R 3Gx1.5 type cable.
3.
Locate terminal block "MC" inside the panel of each appliance and hook up as shown in the figure.
4.
On completion, restore the appliances to their fully assembled condition.
