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R1PR Relay for management of 1 external heat recovery-side pump
This accessory can be requested for units without heat recovery pumps (for DC units) and allows a pump out
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side the machine to be controlled.
R2PR Relay for management of 2 external heat recovery-side pumps
This accessory can be requested for units without heat recovery pumps (for DC units) and allows two pumps
outside the machine to be controlled with a running/stand-by logic by implementing a rotation on the hours
of operation.
R1PU Relay for management of 1 external user-side pump
This accessory can be requested for units without user-side pumps and allows a pump outside the machine to
be controlled.
R2PU Relay for management of 2 external user-side pumps
This accessory can be requested for units without user-side pumps and allows two pumps outside the machine
to be controlled with a running/stand-by logic by implementing a rotation on the hours of operation.
RE1S Relay for management of 1 external source-side pump
This accessory can be requested for units without source-side pumps and allows a pump outside the machine
to be controlled.
RE2S Relay for management of 2 external source-side pumps
This accessory can be requested for units without source-side pumps and allows two pumps outside the ma
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chine to be controlled with a running/stand-by logic by implementing a rotation on the hours of operation.
RMMT Maximum and minimum voltage relay
This accessory constantly monitors the voltage value and the unit's power supply phase sequence. If the sup
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ply voltage does not fall within the set parameters or there is a phase reversal, an alarm is generated that
stops the machine to prevent damage to its main parts
FARE Fast Restart
The Fast Restart accessory enables the controller to carry out a fast restart of the unit following a blackout, in
order to reduce machine down times to a minimum.
This accessory requires the provision of a power supply line dedicated to the controller (uninterruptible power
supply unit installed by the customer) and a maximum and minimum voltage relay in the electrical control
panel. In this way, the controller of the unit will always remain powered even during a blackout.
Once the main power supply returns after a blackout, the starting of the first compressor takes place within 60
seconds and the full capacity of the unit is reached in about 180 seconds (a time that depends on the number
of compressors and the instant load level).
In order to protect component service life, the controller may carry out the Fast Restart procedure no more
than 3 times in an hour and 5 times in one day.
Also, to make it easier to carry out any maintenance on the power supply line dedicated to the controller, there
is a selector switch inside the electrical control panel to allow the controller to be powered directly from the
main power supply of the machine.
Includes "Maximum and minimum voltage relay".
TERM Remote-controlled user terminal panel
This accessory allows the terminal normally situated on the machine to be replicated on a support situated at
a distance. It is particularly suitable when the unit is placed in an area that is not easily accessible.
The accessory is supplied loose and is to be installed by the customer at a maximum distance of 120m from
the unit. We advise using a cable of the following type: "TECO O.R. FE 2x2xAWG24 SN/ST/PUR".
For this accessory, there is a dedicated serial port.
