WEBASTO DBW SERIES HEATERS
Programmed Heater Operation
Three memory locations numbered 1 to 3 are available. Each memory location can be assigned a given time
together with the day of the week.
Pre-selected Starting Times
The pre-selected starting time is the time at which the heater will be switched on automatically.
We recommend that memory locations 1 and 2 be used for presetting starting times within 24 hours of setting the
timer. Memory location 3 can be used for a starting time within the next 7 days of setting the timer.
NOTE:
We recommend that memory locations 1 and 2 be used for presetting starting times within a 24 hour period of setting
the timer. Memory location 3 can be reserved for a starting time within the next 7 days of setting the timer. Location
3 is useful for occasional weekend or field trip operations outside of the normal schedule. By repeatedly pressing the
button on the 1529 timer or button on the 1531 timer, starting time program 1, 2 or 3 can be viewed and preset.
Operating Time
The period of time during which the heater is in operation is referred to as the operating time. The heater remains in
operation for as long as the operating time has been preset. Heater operation can be pre-selected for any time from
a minimum of 1 minutes (a minimum of 10 minutes is recommended) to a maximum of 120 minutes (factory preset is
60 minutes).
Remaining Operating Time
The remaining operating time refers to the period of time the heater still continues to remain in operation. It can only
be changed while heater is in operation.
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OPERATING INSTRUCTIONS
