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4 User interface
NOTICE
The use of accessories and/or options other than those
approved by Zanotti may cause system malfunctions and
automatically void the warranty, relieving the manufacturer
from any damage caused to persons, animals and/or
property.
One rubber grommet is provided to bring the option cable into the
unit.
For MT units:
▪ Door switch, pre-wired (5 m)
▪ Optional
▪ Power supply, pre-wired (5 m)
For LT units:
▪ Door switch, pre-wired (5 m)
▪ Power supply, pre-wired (5 m)
▪ Door heater + optionals
Door switch (3MCT014ACC)
To reduce frost on the evaporator, the door switch (RDS) interrupts
the unit operation when the cold room door is open. It also controls
the cell light.
If the door remains open for longer than the value of parameter d2d,
control resumes in any case. The light remains on, the buzzer and
the alarm relay (if enabled) are activated, and the temperature
alarms are enabled with delay dot.
Door heater
For low temperature applications it is suggested to install a door
heater. It prevents the door from freezing. The choice for the most
appropriate door heater is left to the installer or cold room
manufacturer. Sometimes the door heater is already included in the
pre-fabricated door kit.
Cell light (1KIT862ACC)
The light is ON when the cold room door is open. It is controlled by
the user interface. The cell light is an accessory.
Alarm (2KIT026ACC)
An alarm feature can be installed (light or sound).
"Man in cold room" alarm (1KGM030ACC)
A "Man in cold room" emergency alarm can be connected thought
the Normally Closed Contact of the audible-visual alarm kit (optional)
on the cold room.
Router (3UNM042ACC/3UNM043ACC/1KGM029ACC)
The unit (or multiple units) can be connected to the network through
a router, available as an option.
XWEB
Operation manual
8
a
b
g1
g
a
PC unit
b
RS485 cable
c
Gateway
d
Router
e
LAN – Ethernet cable
f
Devices
g
Choice between WiFi (g1) or LAN (g2) cable
4
User interface
CAUTION
▪ NEVER touch the internal parts of the controller.
▪ Do NOT open up the controller. Some parts inside are
dangerous to touch and appliance problems may
happen.
This operation manual offers a non-exhaustive overview of the main
functions of the system.
INFORMATION
Use only those combinations of controls and programs
which are mentioned in the manufacturer's instruction
manual.
4.1
Overview
The user interface display features three digits, with a sign for below-
zero temperatures and a decimal point. It has a built-in alarm buzzer
and nine icons/buttons.
INFORMATION
When pressing any button on the HMI, the alarm (light or
sound, if installed) will also be switched off.
Icons
a
b
c
d
a
Fan
b
Defrost
c
Below zero temperature
d
Light
c
d
e
f
g2
e
e
f
C °
MPC + BPC
PC ceiling refrigeration monoblock
4P793401-1A – 2024.12
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