Project Overview
BOMING Air Conditioning & Heating recently completed an Installation of Day & Night 3 phase package unit at a commercial property in the Southern California area. The existing system had reached the end of its service life, prompting the need for a reliable replacement that could handle the building's electrical requirements and cooling demands.
Why a Day & Night 3 Phase Package Unit
This equipment is well suited for properties with three-phase electrical service. It combines the condenser, evaporator, and air handler in a single rooftop cabinet, reducing the footprint compared with split systems. The three-phase design supports consistent motor operation and can improve long-term durability in commercial settings where the unit runs for extended hours.
Installation Process
Technicians first removed the old rooftop unit and verified the existing curb and duct connections. The new Day & Night package unit was rigged into place, leveled, and secured. Electrical work included matching the three-phase supply, installing a new disconnect, and confirming proper rotation of the compressors and fans. Refrigerant lines were pressure tested, the system was evacuated, and the correct charge was added before startup and performance verification.
Results for the Property
The owner now has a single, accessible unit that delivers balanced airflow and reliable cooling during peak Southern California temperatures. Three-phase operation helps reduce electrical stress on components, which can support steady performance over time. The installation also restored full system capacity without requiring indoor mechanical room modifications. Property managers seeking similar equipment can contact BOMING Air Conditioning & Heating at 657-275-5855 to discuss options for their buildings.




