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1.4 I Opti onal connecti ons
Connecti ng the "Remote on/off command" and "Alarm" opti ons:
• Any access to the electrical enclosure and mains terminal area presents a risk of electrical
shock which can result in electrocuti on, property damage, and serious injury, including loss
of life. Be sure to disconnect the device from the power source before accessing the electrical
enclosure of terminal area.
• Any incorrect connecti on to the main terminal unit may damage the device and void its
warranty.
• Use cables with a secti on of at least 2x1.5mm² , RO2V type and with a diameter between 8
and 13mm.
• Use the gland to pass the cables into the device. The cables used for the opti ons and the
supply cable must be kept separate (risk of interference) using a collar inside the device just
aft er the glands.
1.4.1 "Remote control" opti on
•
This opti on lets you manage the device remotely. To do so, use the remote control kit available as an accessory.
•
For the connecti on, consult the manual supplied with the kit.
•
If a remote control device is to be installed, provide an RS485 cable having a maximum length of 50 metres.
1.4.2 "Alarm" opti on
•
This opti on enables a relay to be connected to the alarm contact to indicate a fault remotely.
•
For the connecti on, connect the cable to the 24V terminal and to terminal “50”. This is a dry-contact connecti on, is
polarity-independent, and is rated 2 Amps, Max.
: heat pump terminal unit
: alarm contact relay
: separate connecti on cable
1.4.3 Remote "on/off " control opti on
•
This opti on enables the "on/off " butt on functi on to be transferred via a switch installed remotely.
•
For this connecti on, remove the shunt between terminals 30 and 18. Then connect each of the two wires of the
switch to each of these terminals. This connecti on is polarity independent and is rated 220-240V, 50Hz.
: heat pump terminal unit
: remote "on/off " switch
: separate connecti on cable
