CADDY PF01302, Installation And Operating Instructions Manual

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9.4. HOT AIR PLENUM TEMPERATURE PROBE INSTALLATION AND CONNECTION (RTD)
On the Mini-Caddy, a temperature probe (RTD) has to be installed on the side of the furnace using the support
provided with the unit. The RTD is a sensor that reads the temperature inside the hot air plenum. It is critical to the
good operation of the furnace. It is important that the RTD and the RTD support be properly fixed onto the hot air
plenum.
WARNING: USE WIRING SUITABLE FOR 75 °C (not included).
STEP 1: Remove the two screws already secured on the furnace on the side where you have chosen to install the link
board. Then, secure the RTD support using the two screws you previously removed.
STEP 2: Using a drill and a 9/32" bit, drill a hole in the hot air plenum so that the RTD rod can pass into it.
STEP 3 AND 4 : Drill two holes in the hot air plenum to secure the RTD support to the hot air plenum and screw the
support in place.
STEP 5 and 6: Secure the RTD in place on the RTD support
using the two screws provided with the owner’s manual.