121 FC with a STR 106 not working in fan speed 2

Issue

When the fan speed is set to level II on the STR the fan enable turns off on the 121 fc controller

Product Line

TAC Vista

Environment

121 FC Firmware 1.26-11

Cause

Some units of the STR106 and STR107 may have compatibility issues with the TAC Xenta 121-FC unit, concerning the manual Fan speed wheel function.

bvfbfbanxdddcvSome units of the STR106 and STR107 may have compatibility issues with the TAC Xenta 121-FC unit,
concerning the manual Fan speed wheel function.

Resolution

Upgrade the 121-fc to 1.26-14.

Here is the link to extranet with the upgrade files: NXE-APB file