Identify the proposed equipment and refrigerant.
Ask for the actual model information and the refrigerant specified by the manufacturer. Keep that information with the installation and service records.
HVAC · Pacific, Washington
HVAC in Pacific should identify the refrigerant used by the proposed heat pump or air-conditioning equipment. Ask which exact models are supplied and who performs the refrigerant work instead of treating refrigerant names as interchangeable features.
Evergreen Home Pro helps you prepare that conversation. Share the existing equipment information and ask whether the proposal replaces the system or changes only specified components.

Heating and cooling
Have the qualified installer explain the selected system and its service requirements. A new refrigerant name does not establish that existing components can be reused or that the old system can simply receive a different charge.
Ask for the actual model information and the refrigerant specified by the manufacturer. Keep that information with the installation and service records.
Have the installer assess any existing components proposed for reuse. Distinguish a complete replacement from a separately assessed conversion or repair.
Ask about the applicable EPA certification and product-specific training for the people doing that work. Do not attempt refrigerant changes as a homeowner task.
Before work begins
Pacific adopts the Washington-amended mechanical code. Have the installer confirm the city application for the actual equipment replacement and associated work.
Washington L&I explains which electrical jurisdictions issue their own permits, with a separate Tacoma Power jurisdiction check for Pierce County sites. Confirm the actual electrical authority and responsible installer for the parcel.
Have the qualified technician assess the exact equipment; do not assume a direct substitution is suitable.
Ask for the proposed equipment models and the components included or retained.
Confirm the separate electrical authority and permit responsibility for the actual parcel.
Include existing model information and whether any equipment or components are proposed for reuse.