Rev. B 06-2019
32
9
43
90
91
92
60
61
S7
N7
+
-
MTEC.6710.GB-B-1 Operation and maintenance manual HMA/Z series English
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4.21 Electric connections
REMOTE CONTROL PANEL
The remote control panel replicates all of the functions on the main controller panel and can
be connected up to a maximum distance of 50 meters from the unit. The panel has to be
connected to the unit by 2 wires having diameter 0.75 mm
2
. The power supply cables must be
separated from the remote control panel wires, in order to avoid interference. The control panel
has to be connected to the terminals 60 and 61. The control panel cannot be installed in an area
subject to excessive vibration, corrosive gases, is a dirty environment or has a high humidity
level. The ventilation openings must not be blocked.
REMOTE ON / OFF
To switch the unit on or off from remote control.
Contacts are voltage free.
Units are supplied standard with bridged terminals.
Contact closed, unit ON,
Contact open, unit OFF.
All terminals referred to in the explanations below will be found on the terminal board inside the electrical box. All electric connections
mentioned below have to be made by the installer, on site.
REMOTE GENERAL ALARM
For remote display of a general alarm, connect the visual or audible device between terminals
90-91-92.
Contacts 90/91 NC (Normally closed)
Contacts 91/92 NO (Normally opened)
The numbering of the terminals may change without notice. For their connection is mandatory to refer to the wiring
diagram supplied along with the unit.
FAN SPEED
The fans are directly connected to the fan; they are all at 2 speeds, with integrated thermal
protection.
Min. speed
Max. speed
REMOTE CONDENSER CONNECTION
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FAN SPEED
The fans are directly connected to the fan; they are all at 2 speeds, with integrated thermal
protection.
Min. speed
Max. speed
S7
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REMOTE CONDENSER CONNECTION
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