SWHC004-MFm- Revised OAT temperature

[behzadsalimian]

Pull Request (PR) Description

Incremental changes to address CPUC comments in February-March 2026.

What has changed? (Author: append brief description of major changes to list)

• Parameterized outdoor air limits for DHW setpoint outdoor air reset in root_boiler* prototypes
• Renamed parameters for DHW min and max setpoint in root_boiler* prototypes
• Revised DHW setpoint outdoor air reset temperature range (min and max setpoints)
• Revised TechID naming prefix from NG to RG

QC comments (Reviewer: append new QC findings to list)

• Head branch matches official PR (simularis:SWHC004-com-submission1)
• Are changes clearly described?
• Are TechIDs consistent with measure/base case definitions documented elsewhere?
• Are TechIDs parameter values consistent with measure/base case definitions documented elsewhere?