CRAC/CRAH Sensor Hardware Installation Manual
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Appendix A – Battery Replacement
ThermaNode modules come from the factory with four pre-installed AA-size batteries
arranged in two redundant pairs under a removable plastic cover plate.
Follow these steps to change module batteries:
1. Turn the ThermaNode off by sliding the power switch to OFF.
2. Open the plastic cover using a small screwdriver to pry it open.
3. Replace all four batteries with Energizer L91 Lithium/Iron Disulfide AA or equi-
valent for battery configuration). Using incorrect battery types may damage product
and/or compromise performance.
4. Replace the plastic cover positioning the SynapSense label text right side up (read-
able) after installing the ThermaNode.
5. Turn ThermaNode on by sliding its power switch to ON.
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