A building that challenges the perception of what the city stands for today, radiating confidence from its warm glow and geometric silhouette and offering a welcome antidote to ubiquitous concrete and glass towers.

YGHP were commissioned to find a solution to the heating and hot water demands for this development. The challenge was to find a heat interface unit (HIU) and cooling interface unit (CIU) that had the performance to comply with the BESA HIU test regime, but also physically would not take up too much valuable space for the home owner within the utility cupboard.

With HIU kW Ranges from 53.5kW to 91kW, YGHP were able to offer the YGHP indirect series. Keeping the footprint the same throughout the range. The unit offered was a hydraulic unit, that gave all the benefits of stable control and lower fluctuation issues than experienced with electronic HIU’s. The design criteria for the DHW was based on 73/75 with the space heating load 75/45. Independent witness testing was arranged to prove system design against practical performance. Cooling interface units were designed to fit the same footprint with a range of 3kW to 17kW. The design criteria was a secondary flow rate of 9/15 degrees. Again YGHP were able to provide witness testing for the cooling units.

Both HIU and CIU were fitted as standard with ultrasonic heat and cooling meters, allowing the building owners to independently meter and bill the homeowners their own usage. The keep warm facility was designed so the homeowner/tenant could make a choice, did they warm instantaneous DHW with the keep warm on, a cost to the homeowner to keep the DHW plate heat exchangers warm, or turn the DHW keep warm off in time of non-occupancy. A benefit of now primary water going through the heat/ cooling meters and allowing the building corridor primaries to also cool.

A total of 470 HIU and CIUs were supplied. Installed into an off-site prefabricated utility cupboard. YGHP worked with the PUC manufacturer to ensure the units physically matched. In order to meet the programme requirements, the units were built with a buffer stock of two months scheduled deliveries in mind. OCP proved YGHP can take on the most challenging of projects and deliver quality and value for money HIU-CIUs.