TE Technology TC-36-25-RS232 - Manual (Page 28)

5.2 Connect ONLY the TE device to the controller:
Positive TE device terminal to WP2
Negative TE device terminal to WP1
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.
NOTE: Generally there is approximately a 0.5 to 1.3 V drop from the power supply to the TE device. You might
need to adjust the power supply accordingly to ensure full power is delivered to the TE device when needed.
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