Advertisement
ELECTRICAL FEATURES TD 77A
General design
TD 77A is a condensing tumble dryer , which incorporate a microprocessor for
process control, and pushbutton selection of programs. The pushbutton panel also
carries LEDs and two-digit 7-segments displays which indicate selected time (for
times programs), time-delayed starts etc.
Electrical supply
The machines are supplied as 3-phase, 230V, 10A, heater power 2850W . They
can also be reconnected internally to suit them for a single-phase, heater power
2850W , 16A or single-phase. Heater power 1900W, 10A.
Programcontrol
Control unit
The control unit has a microprocessor for control of the motor, heater, program etc.
Keyboard
The keyboard includes pushbuttons and indicators.
Main On/Off switch
The main On/Off switch is fitted in the centre of the lower edge of the panel, is a 2-
pole switch and disconnects the phase and the zero-line.
Indicating lamp
The indicating lamp shows that the main switch is turned on.
Door switch
The door operates a door-switch that, when open, interrups the program. If the
door has been opened while the machine is running, and then closed again, the
machine must be restarted by the Start pushbutton.
Drive motor
The main drive motor is at the bottom of the machine, driving the drum and the two
fans that circulate internal air and external air.
Condensate pump
The machine includes a pump to pump condensated water from the lower con-
tainer to an upper container behind the control panel.
Heater
TD 77 A: The maximum heating power is 2850W provided by two heaters with
ratings of 1900W and 950W respectively, so that the machine can be reconnected
to provide a reduced heating power of 1900W.
TD 77
Advertisement
