Carrier 40TZ Series Installation Instructions Manual page 8

Fig. 20 - Wiring diagram for the connection of the electric heaters (models 50TA/TZ/TY/YZ, 38TA/FZ/TY/BZ,
To the unit control box
400 V/3 ph ~/50 Hz version
(available with 30 V/3 ph ~/50 Hz
on request)
Legend
F18 - Thermal-magnetic switch to be installed in the electric heater
control box (if not in the electric heater).
K8 and K12 - Contactors
R3 - Electric heaters
F20 - Thermal switch with manual reset
F21 - Thermal switch with automatic reset
_____ - Wiring included
-------- - Wiring field-supplied
Order No: 15050-20, 05.2007 - Supersedes order No: 13452-76, 10.2006
Manufacturer reserves the right to change any product specifications without notice.
40TA/TZ/TY/BZ)
Unit terminals
Power wiring connection, common
for all voltages and models
NOTE: If the electric heater is installed in the unit the
existing jumper between terminals 5 and 12 in the control box
must be removed once it is installed (see wiring diagram).
(Refer to the unit wiring diagram that is supplied with the unit.)
To the unit control box
30 V/1 ph ~/50 Hz
version
Manufacturer: Carrier, Spain.
Printed in the Netherlands on chlorine-free paper.