Installation & User Guide

HMI VOLCANO UL (1-4-2801-0222), Rev. 16
6.2. DISPLAY
The display of the HMI VOLCANO UL Controller consists of the
following elements
Note: Some of the display elements are not in use for VOLCANO
unit heaters. Table below show only elements specific for HMI
VOLCANO UL system.
Cooling mode indicator
Heating mode indicator
Ventilation mode indicator
Water heater defrosting mode indicator
Air temperature indicator
Timer mode indicator
Time indicator
Day of the week indicator
Keyboard lock indicator
Fan status indicator
Schedule chart
6.3. SWITCHING THE CONTROLLER ON AND OFF
Before attempting to any basic operations with this controller – you
need to switch it on. To switch the controller on and off, press the
on-off button ( ), located below the display.
Keep in mind, that for modification of some advanced functions
(advanced settings) you will start with the controller switched on
(read the following chapters of this manual).
6.4. MAIN SETTINGS
No
.
Description
Operation button
1
Fan operation mode: 1. AUTO:
2. MANUAL:
[^] or [v]
2
Calendar-based work:
Yes ;
No
Function AA
[^] or [v]
3
Operation mode:
heating: ;
cooling: ;
ventilation ;
heating + ventilation + ;
cooling + ventilation +
Function A3
[^] or [v]
4
Temperature display:
ROOM (current temp.),
SET (set temp.)
EXT (based on external temperature
sensor)
Function A1
[^] or [v]
5
Day of the week
Hold
[Set]+[v]
6
Hour, minute
Hold
[Set]+[v]
7
Screen lock
Hold
[v]
\
Explanation of the operating modes:
• AUTO: Automatic operation mode
• MANUAL: the value set up by the user in a 15-100% scope. To
change the value press ( ) and set up value between 15-100%
or 0% (stopping the fan) by using [+] and [-] buttons. Setting value
lower than 15% will automatically set up value of 0%. Increasing
value from 0% will automatically set up value of 15%.
Antifreeze protection of the water heater ( ): This function
enables opening of the two way valve (of the water coil) in case of
the air measured air temperature drastically drops. This function is
active all the time (even for the unit in stop mode and regardless of