© VALLOX • We reserve the right to make changes without prior notification.
VALLOX 280
CONTROL PANEL
5
The control panel is wired straight from the electrical connection box. The control panel
can also be connected in series with a CO
2
sensor or another control panel. (See
External electrical connections on page 8).
Control panel addresses
If two or more control panels are connected to the system, the addresses of the control
panels need to be changed.
E.g. 3 control panels.
• Connect the first control panel to the unit and change its address to 3.
• Connect the second control panel to the unit and change its address to 2.
• Connect the third control panel and make sure that its address is 1.
If control panels have the same address, they go to bus fault state. In this case, remove one of the control panels
and change the address of the other panel. The above mentioned situation can arise in connection with the later
installation of an additional control panel.
1
2
3
4
5
6
7
8
Keyboard
21 C
Main display
Scrolling up
With this button, you can scroll
the displays upward.
Scrolling down
With this button, you can scroll
the displays downward.
Increase button
With this button, you can increase
values.
Decrease button
With this button, you can decrease
values.
Start button
With this button, you switch the unit on and off.
When the indicator is lit, the unit is on.
Carbon dioxide adjustment
With this button, you set carbon dioxide adjustment on and off.
When the indicator is lit, the adjustment is on.
Humidity adjustment
With this button, you set humidity adjustment on and off.
When the indicator is lit, the adjustment is on.
Post-heating
With this button, you set post-heating on and off.
When the indicator is lit, post-heating is on.
The summer function is active when the indicator is not lit.
1
2
3
4
5
6
7
8
Fan speed
Supply air temperature
Post-heating is on
Filter guard alert
Maintenance reminder alert
Fireplace / booster switch on
Week clock control
Main display
Fan speed may be changed in this display with the + and - buttons.
Control panel
Mounting, removing and wiring of control panel
Paneelin osoite
1
Panel address
1
1
Control
VALLOX 280 can be controlled with the control panel coming with the unit (3 at most) and with
optional CO
2
(5 at most) and %RH sensors (2 at most). Fan speeds of the unit can be controlled
via remote monitoring with a voltage or current signal. In case of disturbances, a potential-free
relay point signal is issued.
With an optional VALLOX LON converter, the whole operation of the unit can be controlled via
remote monitoring.
Week clock control
The week clock in the control panel of the unit can be used to programme the desired fan power
option (1…8) for each hour in the day.
Connecting two or more
units (slave unit)
Connect slave units as specified in the
adjoining connection instructions. Slave
units do not operate independently, but
follow the instructions received from the
host unit. Neither control panel nor
sensors must be connected to a slave
unit.
NOTE! + wire must not be connected to a SLAVE UNIT.
SLAVE UNIT must not have a 6K8 resistor in place.
SLAVE UNIT TERMINAL BLOCK
HOST UNIT TERMINAL BLOCK
SLAVE UNIT TERMINAL BLOCK
SLAVE UNIT TERMINAL BLOCK