Installation Instructions for the TBLZ-1-47 Electronic Timer
The TBLZ-1-47 electronic timer consists of a front plate
with spring-back pushbutton and indicating light-emitting
diode on the front. A circuit card, connection terminals
and a potentiometer for setting timer periods (0 – 6 hours)
are secured to the rear plate.
The kit also includes a mounting frame.
2. Range of Application
The timer is used for prolonged high-speed or low-speed
operation outside ordinary in-operation periods preset in
the internal timer (time switch) of the air handling unit/
power roof ventilator. The timer can also be used for con-
trolling the air handling unit/power roof ventilator when
the internal timer is not in use.
The air handling unit/power roof ventilator is controlled to
the appropriate operating conditions via impulses from the
timer. The indicating light-emitting diode is lit when the
changeover relay switches on the signal to the air handling
unit's/power roof ventilator's input for external high speed
or external low speed. The relay is switched on and the
indicating LED is lit until the preset period has expired.
The timer function can be interrupted by pressing the
pushbutton once more. This is indicated when the LED is
no longer lit.
For flush mounting in electrical boxes with a mounting
dim. of 60 mm centre to centre.
The spacer frame supplied is used for surface mounting.
5. Technical Data
Degree of protection
frame (W x H x D)
Registered design. The company reserves the right to make design changes without prior notice.
90 x 90 mm
100 x 100 x 30 mm