CLIENT: Standard Life Investments

Warwick House is a 4-storey office building located in Bury.

As part of a refurbishment programme, Airtech were commissioned to provide a new Sanyo VRF Heat Recovery air conditioning system, plus modifications to the existing fresh air ventilation system.

Works included full in-house design to meet CIBSE current recommendations with the production of HEVACOMP calculations; design drawings and information relevant to Part L Building Regulations Approval.

The work comprised decommission and removal of the existing VRF system complete with the supply, delivery, positioning, installation, setting to work, testing and commissioning of the Engineering Services Systems as set out below:

  • SANYO VRF 3 pipe heat recovery comfort cooling system
  • Associated control system
Air Conditioning

Heating and cooling to all floors is provided by SANYO VRF 3-pipe systems. Cooling / Heating is provided via concealed ducted fan coil units located within the false ceiling.

All fan coil units are connected to supply ceiling mounted 4-way louvre face diffusers via pre-insulated flexible ductwork.  All supply diffusers incorporate plenum boxes.

Return air to the fan coil units is via 4-way diffusers which return air into the false ceiling.

2 condensing units serve the fan coil units on each floor (1 per wing; East & West).  Refrigerant pipework was routed through the basement plant room and vertically up the service riser of the building to enter the ground, first, second and third floor ceiling voids.

Controls

Hard-wired controllers were installed within the open plan office areas. Each controller provides the facility for temperature set point, fan speed adjustment, operation mode and fault status.

Each wing of the building is served by a SHA-KC64AGB centralised controller, enabling remote stop / start; temperature set point, fan speed adjustment, operation mode and fault status.


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