LU-VE ALFA Optigo SFMD, Оригинальное руководство пользователя

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31515694EN-02
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Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
Tighten drain connection by hand only.
The drain line diameter must be at least the size
of the drip tray drain diameter and should be laid
with an adequate slope. For room temperatures
below 0 °C drain line insulation and defrosting
are required.
A syphon must be installed on the drain line, out-
side the cold room.
6.7 Electrical connections
All electrical connections must be made in accordance with the locally valid regulations and in con-
formance with good installation practice. The site supply voltage, frequency, accepted power rating
and number of phases must comply with the details on the technical documentation. All electrical
supply lines must be connected to the terminal boxes through suitable waterproof glands using bot-
tom entry or, in case of horizontal installation, the cable is routed to form a water trap.
If the heat exchangers are installed and there is to be an appreciable delay in putting the plant into
operation, a temporary electrical supply should be connected to each motor, sufficient to run for
at least 4 hours. This procedure should be carried out at least once every 4 weeks, until the heat
exchanger is fully operational. It is up to the end user to verify the conditions for protection by auto-
matic disconnection of supply, according to applicable standards. Heat exchangers are designed
for TN power systems. The insulation fault protection must be part of power supply of the heat
exchanger and is not supplied by the manufacturer.
The following data determine which connection diagram is to be selected and respected for electri-
cal installation:
• Heat exchanger model indication
• Fan motor type
• Electrical options
When in doubt always contact your local supplier or Alfa LU-VE representative for assistance.
Ensure complete electrical isolation before performing any wiring.
Remove the terminal block cover (P).
Insert the cables into the grommet (U) and
block them with their respective gland. Connect
terminals by following the wiring diagrams on the
cover. When all connections are made refit the
terminal block cover.
For systems using electrical defrost, a defrost
termination thermostat should be used, having a
range of 10 °C to 20 °C with a sensor attached
to the top return bends of the coil block or buried
in the top of the coil block fins (Q).
Differential protections and circuit breakers are
not included in the scope of supply.
P
Q
U
M
motors
heaters