Due to increased running costs of two Comms Rooms, coupled with poor performance and reliability issues, a decision was made to fit new EC fans into the existing Denco down-flow close control evaporators.
This included the reconfiguration of the controls’ strategy, and reinstallation of the associated outdoor units to improve heat rejection.
The brief was to supply and install a total of twelve EC fans into the six Denco down-flow units currently serving our clients comms rooms. Each comms room is fitted with three down-flow units coupled with single circuit direct expansions, R407C remote Denco condensers. Each down-flow unit is capable of providing a nominal total cooling duty of 28 kilowatts.