TE Technology TC-24-10 - Manual (Page 13)

13
TE Technology’s standard thermoelectric cooling assemblies (TCA) have at least one fan on the heat
sink. The standard configuration has the thermoelectric modules and fan(s) wired to a terminal block
with jumpers across the terminals so that the fans and modules are connected in parallel. However,
this configuration is applicable only when applying power directly from the power supply. When using
the TCA with the temperature controller, the jumpers MUST be removed so that the controller is
controlling power only to the thermoelectric modules. There must be no electrical connection
between the fans and the modules; fans must be connected directly to the power supply, not to the
controller. The controller will be damaged if this is not followed. See the cooler manual for further
details, but the picture below shows the basic setup.
Temperature Controller Connection
PROTECTION
DEVICES
DC POW ER SUPPLY
THERMOELECTRIC
(PELTIER)
HOT-SIDE FAN
(ALL UNITS)
COLD-SIDE FAN
(AC-XXX UNITS ONLY)
TCA
TEMPERATURE
CONTROLLER
Terminal Block
Cover removed
for clarity. Re-
install before
operation.
Review electrical jumper connections. Remove/install electrical jumpers as required.