A challenging job enough to keep a large room cool. The library can quickly fill with students and can require some serious cooling capacity to cope with the peaks.

For the task we installed 4 Mitsubishi cassettes each with its own independent outside condensing unit.

The Mitsubishi cassette is an environmentally friendly design charged with friendly R407C refrigerant.

John tests the output of the newly installed Fujitsu
ceiling cassette, with a specially designed thermometer. Each installation is subjected to a series of tests before the engineer leaves the premises.

The outside condensing unit is sited onto concrete slabs and 75mm of polystyrene to absorb any vibrations to keep the enviroment quiet in the rooms below. John is testing the running current of the unit in the picture opposite.

To be able to remove heat from such a capacious hall 2 larger Fujitsu ceiling cassettes were installed. These units are designed to withstand extremities of climate and will give many years of service.

The installation had to be sympathetic with the decor of the hall. Here a Inverter driven undercieling unit has been installed to maintain exact temperature.