The new indoor units have been installed onto the existing Airstage J-IIS two-pipe heat pump VRF system, also from Fujitsu, in the lower deck sleeping quarters. The equipment proved to be so successful that a second J-IIS system was recently installed adjacent to the first.
The owners of the vessel identified the ambient temperatures in the lower deck sleeping quarters as too low in winter and too high in summer, so new equipment was installed by Gravesend-based NBC (Air Conditioning), using the existing air conditioning pipework on board.
Jason Canning, Managing Director of NBC, said: “Fujitsu air conditioning units had already been fitted on HMS Belfast previously, so it seemed an obvious choice to replace the existing system with the latest, most up-to-date, energy efficient products. The installation was straightforward, especially as we were able to re-use the existing pipework, so we soon had the space up to the required ambient temperature. I’m also delighted to report the client is pleased with the result and will continue to use Fujitsu for any further upgrades or replacement of air conditioning equipment.”
The new units have been installed in an open exposed arrangement, ensuring all the cassette units are suspended in the positions of the original models. The original infrared controls have also been replaced by touchscreen versions, which are hardwired to each indoor unit. The controls are set up in a master/slave arrangement, ensuring the two pipe heat pump VRF system can run either in ‘all heating’ or ‘all cooling’ mode.
Fujitsu’s AUXB18GALH 4-way compact cassette units offer cooling capacities of 5.6kW and heating up to 6.3kW. Elsewhere, the ASYA09GACH wall-mounted AC unit boasts 2.8kW of cooling and a heating capacity of up to 3.2kW.
For more information visit the Fujitsu website.