• 12 volt positive
• On Signal
• 12 Volt Positive
• When pressed and held it will adjust time in conjunction with the Day, Hour and Min buttons.
• When pressed the timer will enter program mode that will set on / off operation set times.
• When pressed with the clock or timer button it will set the day of the week.
• When pressed with the clock or timer button it will set the hour.
• When pressed with the clock or the timer button it will set the minute.
• When pressed the manual button will turn the heater on / off.
• Display's current time
• Display's current set program
• Display's if heater is on / off
• When pressed completely resets timer and all set programs.
The timer should be installed in an area protected from the effects of weather and contamination. The timer can be surface mounted on the vehicle instrument panel or inside the circuit panel (Bus applications) or any place convenient and accessible.
The timer can be mounted using customer/installer supplied Velcro tape by sticking one half of the Velcro to the timer and the other to a secure mounting location. The timer can be mounted with screws in place of Velcro.
Connect the Webasto heater switching harness to the timer. Refer to the wiring diagram below for directions. After all connections are made, mount the new timer. Using customer/installer supplied Velcro tape or screws. Optionally, an On/Off toggle switch can be installed with the timer. The timer will work without using the toggle switch however, it's a nice option to have.
To mount the toggle switch, locate an appropriate mounting location and drill a ½" mounting hole. Refer to the wiring diagram on next page to, connect the appropriate wires to the toggle switch.
Setting the Timer
Press and hold the "Clock" button and by pressing the "Hour" and "Min." buttons set the clock to your current time. In the upper left corner you will see "AM" or "PM".
Setting the timer On/Off functions:
Press the "Timer" button one time. You will see the screen now reads "1" "On" using the day button select the appropriate day or days. Look in the upper left hand corner for the "AM" or "PM" sign. Using the day button you can select one or multiple days. After you have selected the proper day/days and set the appropriate on time, push the "Timer" button once again. You should now see "1" "Off" using the day button select the appropriate days again.
BE SURE THE DAYS SELECTED MATCH THE SAME DAYS YOU SELECTED FOR TIMER "1" "ON". Now set the timer to the appropriate "Off" time. After you have set the timer functions needed, push the "Clock" this will save your settings and return to the clock. These steps can be repeated 6 more times giving you multiple on and off settings. It is very important that you set this timer to the specific needs of each vehicle to optimize the heaters efficiency.
Operation in manual mode:
The largest button on the timer is the "Manual" button. At the bottom of the "LCD" screen you will see a small line that moves as you push this button. Underneath the small line you will see the corresponding function "On" "Auto" "Off". The manual button can be used as a toggle switch to operate the heater or after you have programmed the timer, for automatic operation, push the manual button until the line is over "auto" on the timer. The timer will now turn the heater on and off at the times preset earlier
Webasto Thermo & Comfort Inc, 2013