Electronic Control; 1- Microface Control; 2- Microface Xontrol Plus Hiromatic Grafic (Optional) - Liebert Hisp SE+SC04 Product Documentation

Hisp

1.10 - Electronic control

1.10.1 - Microface control
The standard microprocessor control is Microface.
Where. The Microface electronic board is located in the electrical panel (SE evaporating unit), connected
to a remote display installed in a metallic box and placed inside the room or the container.
Display. The interface with the user is a 3-digit backlighted display enabling the machine SET-UP in a
very simple way by a tree menu that, as an alternative to the parameter number (which can be easily found
in the user's manual), gives an abbreviation of the selected function.
Remote alarms. There is a warning contact with HT, LT and heater failure. There is another alarm contact
with LP , HP , fan failure, and control failure. With the Microface it is possible to have, as option, an additional
alarm board allowing further remote alarms.
Management of Freecooling. There is an intelligent management of the freecooling, starting not to a fixed
ambient temperature, but depending from the difference (T
the same time there is a control of the delivery air temperature, never allowed to go under a defined value.
Connectivity. The Microface has been produced and studied to obtain high performances concerning con
nectivity. Hirobus (the local area network of controllers) allows to connect up to 16 Microface (16 units)
controlling the group; this means sharing the adjustment parameters, rotating the units during their opera
tion keeping 1, 2 or 3 units in stand by and re-activating them when required.
Stand-by. It is sufficient to connect two units or more (up to 16) with a bus cable to create a local network:
in case of failure or overload of the running unit, the second one will start automatically.
Automatic rotation. With this control it is possible to obtain the unit rotation and also the working of the two
units at the same time if necessary.
Cascade. Two or more units can really work as a team: through the subdivision of the proportional band
from Microface, it is possible to split the heat load on the available Hisp air conditioners.
1.10.2 - Microface control plus Hiromatic Graphic (optional)
Microface is a Hi-Tech solution that enables the connection of the display for Hiromatic Graphic, for the
temperature record over the last 24 hours and the alarm report functionality The Microface (if connected
with Hiromatic Graphic) also records the number of working hours of the main components (fan, compres
sor, heating elements), controls the starts and stops of the compressor cleverly, shows the alarms avail
able in the unit, and allows the setting of the important parameters covered by 3 password levels.
Also with a serial port RS422, available as option in the Hiromatic Graphic, we can link together in a net
work by the Hirolink accessory the Hisp units located in different sites. So we can monitorize with a person
al computer all the installed air conditioners.
set out
- T ) compared with a settable value. At
English
Cleverly Control
5