Service Alert Summary:
A system error resulted in the failure to verify the presence of a 2nd XM70 expansion module during factory testing for CSAA orders associated with UC05 Design Sequence R and PSCA orders associated with the UC07 Design Sequence AG. Additionally, the Drawing Generator did not consistently produce a Controller detail page for the 2nd XM70, which permitted this oversight to remain undetected for the Catalog AHU Symbio 500 distributed I/O, which was launched at the beginning of 2024. A blank Expansion Card Detail Page is attached for printing as required for site documentation. This Service Alert is being issued to inform the Sales and Service Teams of the affected units, and to ensure they are aware of this issue. Please refer to the attached Excel List for a compilation of sales order numbers that are involved in this discrepancy.
Model Prefix(s) & Configuration details: CSAA*, & PSCA*
Ship Date range: February 1, 2024 to March 2025
What actions can I take now:
If the second XM70 had designated field terminated points in the scope of work, most XM70 misses would be caught during startup or commissioning, since the factory committed the XM70. Check the order to confirm the XM70 was installed. If not, order the XM70, mounting rail, power wiring, and IMC cable.
- To help us gather additional information needed to investigate these failures please enter an FQA: link: FQA (Field Quality Alert)
- Parts list:
- RAL00946 = 10" Equipment Mounting Rail
- WIR10816 = IMC Interface Harness Assembly
- MOD03239 = XM70 Expansion Module
Step 1. Attach the mounting rail in an accessible location aligned with or close to the XM70 module #1
Step 2. Attach the XM70 module #2 to the mounting rail
example
Step 3. Terminate IMC harness from XM70 #1 to XM70 #2
example:
Step 4. Wire the designated transformer power for XM70 #2 according to the legend detail page
example:
Is there a related published service bulletin for this issue?
No, no bulletin has been published. Information Bulletin only for customer awareness.
Are WMS(Warranty Management System) claims allowed for this issue?
Warranty / Concession claims may be allowed.
Does the above information indicate the final resolution?
Yes. Internal Containment Complete, so this issue will not occur on units shipped after March 2025, where 2 XM70s are ordered.
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