Sheraton Hotels

Kauai, Hawaii

This project calls for infrastructure upgrades which includes providing new refrigerant monitoring system and refrigerant exhaust systems in all mechanical rooms; replacing all site work underground chilled water piping in the Garden Wing; providing chilled water connections for each guestroom building, new Lobby building, existing ballroom building and Engineering Building; providing gas piping for new gas grill locations and fire pits; and installing new cooling towers in a new cooling tower enclosure on the site. We are also renovating the Engineering Building, Lawai Fitness Center, Poipu and Koloa Ballrooms, Pool Restrooms and relocating the main lobby from the Ocean Wing to the Garden Wing. We are installing new plumbing fixtures in existing guestroom restrooms; installing new plumbing fixtures per ADA requirements; adding an ADA restroom for the Engineering building, renovating the Pool Restroom for ADA compliance; and renovating the Employee Restroom in the ballroom building. We are also replacing fire sprinkler heads in buildings where we are installing new ceilings and relocating exterior fire sprinkler mains. Estimated Construction Cost: $25 Million

waikiki, Hawaii

Currently providing the mechanical and electrical engineering design work for implementing central plant improvements including integration of a combined heat and power (CHP) system, replacing the existing chillers and pumps, relocating and modernizing the hot water system, and upgrading the emergency generator system. We are providing the design to replace the existing 1,400 ton centrifugal chillers with new 1,500 ton chillers; a variable primary pumping system; replacing chilled water and condenser water pumps; relocating and providing new hot water storage tanks to make room for the new CHP units; providing hot water booster pumps; support for the new CHP units including hot water circulation piping, circulation pumps, flue ducting, and synthetic natural gas piping; re-designing the flue system to vent the existing remaining boiler and new CHP units; providing heat exchangers for the domestic hot water heating system; implementing an absorption chiller; and providing commissioning of all mechanical systems.

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Outrigger Waikiki Beachwalk

Waikiki, Hawaii

We provided the overall mechanical shell design services for the Outrigger Waikiki Beach Walk project, which consists of a two-tower 400 room Embassy Suites hotel, a 200 room Outrigger Islander Hotel, a 1,200 room Outrigger Reef on the Beach, and a new 90,000 sf retail podium. Our scope of services included the design and construction management of a new 2,400 ton chilled water plant that supports the entire complex. We also completed the shell design for the retail plaza which includes 40 retailers and restaurants, and the complete air conditioning, ventilation, plumbing, and fire sprinkler design for the main kitchen, pool and meeting rooms, parking garage, and over 30,000 sf of Outrigger office space. We also completed the mechanical design for the renovation of the 400 room Embassy Suites Hotel. The total construction cost for the project is approximately $650 million.

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Halekulani Hotel Renovation

HONOLULU, HAWAII

InSynergy Engineering, Inc. completed a major renovation to all guest rooms and common areas in 2010. The guest room renovation included replacing air conditioning units, plumbing fixtures, upgrading power to the guest rooms, and providing new power throughout. Common area renovation included ball room air conditioning replacement and replacement of the domestic hot water heating system. In addition to the guest room and common area renovation completed in 2010, Insynergy Engineering has worked on many other renovations, repair, and upgrade projects at the hotel involving electrical, mechanical and fire protection work. Projects included design for the central chiller plant replacement, implementation of an energy efficient heat pump hot water heating system, and other miscellaneous projects including upgrade of the hotel fire alarm system, installation of dry cleaning exhaust hoods, replacement of the laundry hot water system, replacement of the central plant boiler, upgrade of the laundry steam system, renovation of the security office, replacement of hot water boiler, and air conditioning and electrical renovations to the ball room, lobby, pool restaurant, kitchen, and various meeting rooms. We also completed a due diligence study, assessing the mechanical and electrical conditions and completed an electrical load study and power quality study that was completed in September 2009. Estimated Construction Cost: $50 million

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