Remote Control, Local Networks And Supervision Systems - Uniflair Aquaflair 00182 Instruction Manual

REMOTE CONTROL, LOCAL NETWORKS AND SUPERVISION SYSTEMS

REMOTE CONTROL
It is possible to use remote switches to turn the unit on and off and change function from cooling to heating,
as shown on the unit's electrical diagram and in the section START-UP AND TESTING CHECK LIST.
The microprocessor control panel can also be remote:
•
( units with the mP20 control ) at a distance up to 200m; the mP20 or LAN manuals give further
information.
•
( units with basic control –not supplied with free cooling versions ) up to 150m.
In this case the 'TUR' remote user
terminal is an optional accessory supplied
with the 'REM' remote control board. The
REM board is connected via an 8-core
telephone cable with connectors at both
ends to the C socket on the I/O CARD
and to the TUR terminal via a three
twisted pair AWG24 shielded cable.
The 'TUR' remote terminal can be
installed instead of the 'TUL' local
terminal or in addition to it; in the latter
case it should be connected to the REM
board via an 8-core telephone cable.
In heat pump versions only: in order to change the summer/winter mode via remote control a remote switch
with potential-free contacts must also be fitted to terminals 10 and 51 of the electrical panel; when the contact
is open the unit functions in cooling (Summer mode).
In this case the SLR connector in the front electrical panel must be in the R position.
LOCAL NETWORK CONNECTION (see also LAN manual)
(units with mP20 control only) If more than one chiller (up to a total of five) is connected on the same water
circuit all the microprocessor control boards can be connected and a single user terminal can be installed. In
this way the units will be controlled as one, sharing set points, compressor rotation, fault management, etc.
The local network uses high-speed RS485 communication (64 kByte/s) with 2-core shielded telephone cable.
AWG24 CABLE
REMOTE USER
TERMINAL
LOCAL USER
TERMINAL
24
REM
MAX 150 m
8-CORE TELEPHONE CABLE
I/O CARD
C