4
ON
ON
ON
>7 sec.
BLUE BACKLIGHT
Pressing any key the display will illuminate with a soft blue color. After certain time if no other keys are pushed the display backlight will turn off. It is
also possible to adjust the display backlight time.
Hold the
“mod.”
key during five seconds. After the correction, (if required) of the thermostat (see previous paragraph), a value from 0 to 90
seconds will be displayed. It may be modified in 15 seconds steps by
“+”
and
“–”
keys. If 0 value is selected, the display backlight will be off
permanently. To store, press the
“mod.”
key.
OPERATION MODES
By the
“mod.”
key different functions or operation modes may be selected.
KEYBOARD LOCK
In every operation mode it is possible to lock the keyboard by holding the
“
ON/OFF
”
key for more than 7
seconds.
When the keyboard is locked, if any button is pressed, the display will show
“
Lo”
message and the unit will
not respond.
To unlock the keyboard press the
“
ON/OFF
”
button for more than 7 seconds.
OPERATION WITH A PILOT WIRE PROGRAMMER.
It is possible to control the heater operation from a remote pilot wire programmer in AUTOMATIC mode. Pilot wire programmer orders for OFF and
FROST PROTECTION are prior and independent from the operation mode selected in the heater.
OPERATION WITH A PROGRAMMER WITH POWER LINE CARRIER OR A LOAD-CONTROLER WITH POWER LINE CARRIER.
In AUTOMATIC mode, it is possible to control the heater operation from a programmer with PLC (Power Line Carrier) or from a load-controler with
PLC.
TO ASSOCIATE the heater, switch the PLC programmer or the PLC load-controller to the “association” mode (see corresponding manual).
Press the
“
mod.
”
button for more than five seconds and after that press the
“
mod.
”
button twice, the display will show
“CP”
,
Keep the
“
mod.
”
button pressed. The message
“CP”
will start blinking. Release the
“
mod.
”
button and press it again.
The display will show
“En”
. To store, press the
“mod.”
key.
TO DISASSOCIATE the heater press the
“
mod.
”
button for more than five seconds and after that press the
“
mod.
”
button twice, the display
will show
“CP”
. Keep the
“
mod.
”
button pressed for 60 seconds until the display will show
“An”
. To store, press the
“mod.”
key.
PERMANENT COMFORT mode.
Push the key
“+”
or
“–”
if it is
required to modify comfort set
point temperature.
PERMANENT ECONOMICAL
mode. The set point temperature is
reduced by 3.5ºC.
PERMANENT
FROST-PROTECTION mode.
The set point temperature is
7ºC and it is constant.
AUTOMATIC mode. In this mode
programs from the input command
cable (pilot wire) are performed.
