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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
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- Wiring included
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- Wiring field-supplied
Order No: 15050-20, 05.2007 - Supersedes order No: 13452-76, 10.2006
Manufacturer: Carrier, Spain.
Manufacturer reserves the right to change any product specifications without notice.
Printed in the Netherlands on chlorine-free paper.
Fig. 20 - Wiring diagram for the connection of the electric heaters (models 50TA/TZ/TY/YZ, 38TA/FZ/TY/BZ,
40TA/TZ/TY/BZ)
To the unit control box
To the unit control box
400 V/3 ph ~/50 Hz version
(available with 30 V/3 ph ~/50 Hz
on request)
Unit terminals
Power wiring connection, common
for all voltages and models
30 V/1 ph ~/50 Hz
version
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.)