Carrier 33CS450-01 Owner's Manual page 43

Installing the Humidity Modub
To install the Humidity Module the thermostat must be detached
from the back plate. Plug the Humidity Module into the Humidity
Module connector as shown in Figure 2 below. Follow the detailed
instructions included with the Humidity Module accessory. Once the
Humidity Module has been installed, you must adjust the Humidity
jumper setting to HUM as shown in Figure 1 below. This will allow
you to access the humidification and dehumidification setup steps.
For proper humidity operation, this
jumper must be set for HUM.
Back of 33CS450-01
BBBBB" °
Figure 1
_] UM
OR
NO HUM
Figure 2
Install the Humidity Module
see Humidity Module Instruction
_heet for more detailed information).
---....
Humidity Module
t
/ the Thermostat
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