Selection Software Update: Rating Notice
ARES PHE AHRI selection software V0326.2 revises the certified heat transfer ratings of the AH6 (BMG 60) and AH12 (BMG 120) model groups. Selections made with earlier versions should be re-run.
AHRI Liquid to Liquid Heat Exchangers (LLHE) Certification Program · Issue date: 5 November 2026
ARES PHE has released an update to its AHRI-approved selection software, ARES PHE AHRI V0326.2. This update revises the certified heat transfer ratings of the model groups below.
Updated ratings
| Basic Model Group | Models | Heat transfer rating |
|---|---|---|
| BMG 60 | AH6L, AH6M, AH6S, AH6XL | 94.6% of the previously published value |
| BMG 120 | AH12L, AH12M, AH12S | 89.7% of the previously published value* |
Pressure drop ratings are unchanged. All other ARES models are unchanged.
*For the AH12 models, the update also limits selections to the valid operating range of the plate, at an LMTD of 1.0 °C and above.
What to do
- Selections for the models above generated with an earlier software version should be re-run with the current version before use.
- ARES PHE USA will re-issue any such selection on request: info@arespheusa.com
Verification and contact
Current certified ratings are listed in the AHRI Directory at www.ahridirectory.org.