To maintain product continuity and improve forward compatibility, several controller/accessory part numbers have been superseded. These updates are intended to be form/fit/function equivalent for current applications, while also future-proofing for upcoming model usage.
1) UTY-RNRYT5 → UTY-RNRYT6
Solution outcome
Split compatibility: No change
Multi compatibility: No change
Existing R410A VRF compatibility: No change
Future-proofing: Updated to support future model usage
Customer impact: Same look and operation (no change to user experience)
2) UTY-RSRYT → UTY-RSRYT1
Solution outcome
Split compatibility: No change
Multi compatibility: No change
Existing R410A VRF compatibility: No change
Future-proofing: Updated to support future model usage
Customer impact: Same look and operation (no change to user experience)
3) UTY-RHRYT → UTY-RHRYT1
Solution outcome
Split compatibility: No change
Multi compatibility: No change
Existing R410A VRF compatibility: No change
Future-proofing: Updated to support future model usage
Customer impact: Same look and operation (no change to user experience)
4) UTY-DCGYZ3 → UTY-DCGYZ4
Solution outcome
Existing R410A VRF compatibility: No change
Future-proofing: Updated to support future model usage
Customer impact: Same look and operation (no change to user experience)
5) UTY-DTGYZ1 → UTY-DTGYZ2
Solution outcome
This supersession includes functional/technical changes.
Action: Separate communications will be issued to detail compatibility and application guidance prior to broad rollout.
Operational Guidance (for Sales, Service, Parts)
Treat the superseding part numbers as the default supply replacement moving forward.
For UTY-RNRYT6 / UTY-RSRYT1 / UTY-RHRYT1 / UTY-DCGYZ4, advise stakeholders: “direct replacement, no compatibility change, same operation.”
For UTY-DTGYZ2, do not provide “like-for-like” assurances until the separate guidance note is released.