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Thermo G

Operating and
Maintenance Instructions

Standard timer

Heater operation

The water heater can be switched on using either a switch or timer.
Before you switch on the heater set the vehicle's heating system to “Warm”.

General

The standard digital timer enables you 
to preset the start of the heater 
operation up to 7 days in advance.

It is possible to program 3 different 
starting times, only one of which can be 
activated.

The standard digital timer features a 
wake-up alarm function.

When the ignition is switched on, the 
timer displays the current time and the 
day of the week. When the heater is 
switched on, the display and the buttons 
are illuminated.

After the power supply has been 
connected, all symbols on the display 

Operation

The timer can be operated in that all 
flashing symbols can be adjusted by 
means of the       and        buttons. If the 
buttons are not pressed within 5 
seconds, the time displayed will be 
stored. If the       and        buttons are 
pressed for more than 2 seconds, the fast 
time-setting mode is activated.
If the ignition is switched off while the 
heater is operating in the continuous 
mode, the remaining operating time of 
15 minutes is displayed and the heater 
continues to operate for this period of 
time.

will flash. The current time and weekday 
must be set.

day of the week

heater  on” indicator

forward

standard timer

instant
heating

reverse

program
selection

time

alarm indicator

memory location

time display

2

MO

Switching the heater on

Manually: by pressing the button        
(continuous heating mode)
Automatically: by programming the 
heater starting time

Switching the heater off

Manually: by pressing the button
Automatically: by programming the 
operating time
With the heater running: by program-
ming the remaining operating time

Setting time/day of the week

Press the       button for more than 2 
seconds - time of the day is flashing - 
and set the clock using the       and       
buttons. Day of the week is flashing - 
adjust the day of the week.

Viewing the time

With the ignition switched off:  press 
the       button

Programming heater starting time

Press the       button - the memory 
location is flashing - using  the       and       
buttons, set the heater starting time.  
Day of the week is flashing - set  the day 
of the week.  By repeatedly pressing  the 
       button, memory locations 2 and 3 
can be programmed or the time display 
mode can be reached.

Recalling/erasing preset times

Repeatedly press the        button until the 
desired memory location is displayed. To 
erase the preset time, press the       
button several times until the time of 
the day is displayed instead of the 
memory location.

Programming duration of operating time

The heater must be switched off. Press 
the        button for 3 seconds - operating 
time is flashing - and set the desired 
operating time (10 to 120 minutes) using 
the        and        buttons.

Setting the remaining operating time

Set the desired remaining operating 
time (1 to 120 minutes) using the        and
       buttons.  The remaining operating 
time refers to the time the heater still 
continues to remain in operation. It can 
only be changed while the heater is in 
operation and the ignition switched off.

Setting the wake-up time

A wake-up time can only be program-
med on the standard digital timer. The 
wake-up time is not bound to a specific 
day of the week. Repeatedly press the       
button until the bell symbol       appears 
on the display. Set the desired wake-up 
time using the       and       buttons. The 
alarm clock turns off after 5 minutes or 
when one of the buttons is pressed.

Remote control

Possible by means of an optional 
external "instant heating" button

Recalling/erasing the wake-up time

Repeatedly press the       button until the 
bell symbol       appears on the display - 
read off wake-up time.  To erase the 
wake-up time: press the       button until 
the bell symbol       is no longer visible on 
the display.

Summary of Contents for THERMO G

Page 1: ...HEATING SYSTEMS THERMO G Rev 04 2014 Id No 11119844A Operating and service instructions...

Page 2: ...alledasdescribedin theattached installationinstructions Prior to operating the heater check the openings for the combustion air intake and exhaustoutlet andcleanthemifnecessary The heater must not be...

Page 3: ...ainscreweverythreemonths Failure to follow the installation instructions and the notes contained therein will lead to all liability being refused by Spheros The same applies if repairs are carried out...

Page 4: ...display and the buttons are illuminated After the power supply has been connected all symbols on the display Operation The timer can be operated in that all flashing symbols can be adjusted by means o...

Page 5: ...til the time of the day is displayed instead of the memory location Programming duration of operating time The heater must be switched off Press the button for 3 seconds operating time is flashing and...

Page 6: ...elfhasfailedorperipheralcomponentsaredefective Variantstoresettheheaterafterafaultlock out 1 Switchofftheheaterandthenturnitonagain 2 Reset thecontroldevice e g throughdisconnectingitfromthepowersuppl...

Page 7: ...ablebelow Table Flashcodes No of Long Description of malfunction pulses 0 Control Device malfunction on standard timer 1531 not displayed 1 No start within the safety time 2 Flame interruption during...

Page 8: ...Valeo Thermal Commercial Vehicles Germany GmbH Postfach 1371 82198 Gilching Germany Tel 49 0 8105 7721 0 Fax 49 0 8105 7721 889 www valeo thermalbus com service valeobus valeo com...

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