Separate the complaint by floor, zone and schedule
For Elk Grove service, identify the thermostat calling for heating or cooling and the rooms that are not responding. A two-floor comfort difference should be described separately from a system that does not run at all.
For a replacement estimate, include any remodel or room-use change since the existing system was installed. Heco can then discuss capacity and distribution together instead of copying the old unit's nominal size.
For vrf / vrv systems, bring floor-by-floor performance into the scope discussion. Discuss the specific fault, compatibility and service support before comparing repair with alteration or replacement. Keep unsupported equipment and chiller systems outside the promised scope.
