The Challenges
Dometic Marine faced two key challenges when designing an HVAC system for 135-ft. Swiftship patrol boats:
- The ships would patrol waters in the Middle East, a region with very high air and water temperatures – a significant problem as seawater acts as a coolant in marine HVAC systems.
- The HVAC system had to fit very tight space allowances.
The Solutions
The builder chose Dometic Marine because of the following uniquely engineered solutions:
- To overcome the high-temperature challenge, Dometic engineers designed a custom MCG 270,000 BTU/hr chiller with boosted capacity by putting 10-ton condensing coils on each of the 7.5-ton modules.
- To conquer the space limitations, Dometic Marine engineers designed the chiller to produce the required capacity in the small space available in the engine room. In addition, slim-profile ATV air handlers were installed to accommodate the ship's interior areas.
The MCG 270,000 BTU/hr (22.5-ton) three-stage chiller with on-board electronics.