thermital 20112950, Инструкции по эксплуатации и монтажу

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ENGLISH
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Electrical connections
General
• The acceptable voltage variation is: ± 10% during operation.
• The electrical connection conduits must be fixed.
• Class 1 unit.
Power supply
AF ACS must always be connected to the electrical power supply with a dedicated line. Do not connect AF ACS power
line to outdoor unit.
• The power supply must come from an isolation and electric protection device (not supplied) in accordance with existing
regulations.
• The installation must be protected by a double-pole circuit-breaker (not included).
Connect the Electrical Heaters of the external tank to the proper connection block; AF ACS supports up to three Electri-
cal elements of 1500 W each one; for connections to three-phase tanks, use R1,R2 and R3 as the command of an elec-
trical panel with circuit breakers. Electrical heaters supporting AF ACS operation in case of heat pump trouble, very low
outdoor temperature and some time during the legionella cycle; we suggest to connect at least one electrical element.
Note: AF ACS electrical consumption is very low but in case electrical heater elements are connected, AF ACS has to
support the flow of big amount of electrical energy; for that reason it is necessary to power AF ACS independently to the
power supplied by the outdoor unit.
Electric back up setting
When electric back up heaters are connected you have always to set SW1 on PCB. This operation is mandatory.
Connect the communication shielded pair cable (18
AWG) to the connection block C1 and C2 and the
shield to the communication ground connection; take
care about polarity between outdoor unit and AF ACS;
in case of mistake you will see a communication error
indication (all the LED flashing).
Connection block IN1/IN2 are factory closed; they can
be used in case of external timer, external solar control
box or any dry contact used to enable or disable AF
ACS unit.
Factory setting 1 element
Max
1,5kW
2 elements
Max
1,5 +1,5kW
3 elements
Max
1,5 + 1,5 +
1,5kW