I A Mains Power Supply Connections; I A Installer Connections - Mitsubishi Electric CLIMAVENETA BRAN2 0021M Installation, User And Maintenance Manual

MAINS POWER SUPPLY CONNECTIONS
• Before connecting the unit to the power supply, makes
sure that switch QF1 is open, suitably padlocked and
marked.
• Remove the inspection panel by unscrewing the screws.
• Identify the terminals used for electrical connections on
the layout drawing shown in this manual.
• Make the connections as shown on the wiring diagram
enclosed with the product.
• Replace the covers on the electrical panel and the closing
panel.
• Make sure that all the covers removed to make the electri-
cal connections have been replaced before powering up
the unit.
• Position the main switch QF1 (outside the unit) in the "ON"
position.
INSTALLER CONNECTIONS
All terminals referred to in the explanations below are to be
found on the terminal block inside the electrical panel and
described as "installer terminals" (see the wiring diagram
enclosed with the product).
REMOTE ON/OFF (SA1)
To use a remote on/off device, an external contactor must
be connected to installer terminals 14 and 15, setting para-
meter CL42 to -1 (CL42=-1).
For timed operation, connect a daily or weekly timer
between terminals 14 and 15.
REMOTE ALARM (RD1)
For remote display of unit shut-down, an audible or visual
alarm warning device can be connected between terminals
12 and 13.
Connect the phase to terminal 13 and the alarm signal
device between terminal 13 and the neutral (maximum load
applicable 500 mA at 24 V).
12 BRAT2 - BRAN2 EN
• Use cable gland A for the main electrical power cable and
cable gland B for other external cables to be connected by
the installer.
A
B
REMOTE COOLING/HEATING CHANGEOVER (SA2)
To use a remote cooling/heating changeover device, con-
nect the contact of the device to installer terminals 16 and
17. To activate the device, proceed as follows:
- From the HSW15 control panel select parameter CL43
and set it to the value +3 (contact closed = cooling, con-
tact open = heating) or -3 (contact closed = heating, con-
tact open = cooling)
COMPRESSOR ON SIGNAL (GN1)
For remote display of compressor operating status, an audi-
ble or visual alarm warning device can be connected
between terminals 10 and 11. Connect the phase to terminal
11 and the signal device between terminal 10 and the neu-
tral.
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