Q-TON DELIVERS LOW CARBON HOT WATER FOR CITADINES HOTEL A London hotel has recently upgraded its hot water generation plant using the Q-ton air-to-water heat pump system from Mitsubishi Heavy Industries (MHI). !R!Jm which provided potable hot water to the aparthotels 192 apartments and communal breakfast area. Citadines required a replacement that could provide water at high temperatures, whilst ensuring minimal environmental impact. The project at Citadines Holborn-Covent Garden, part of The Ascott Limited portfolio - CapitaLands wholly owned lodging business unit is part of CapitaLands 2030 Sustainability Master Plan targets. As part of the Master Plan, a phased installation will also see the Q-ton system deployed at four other Citadines sites across the capital, in Islington, Barbican, South Kensington and Trafalgar Square. Ideal product Overview A 30kW modular heat pump Operates using CO2 a natural refrigerant with a GWP of less than 1 Produces leaving water !! ! temperature y! Achieves three BREEAM design points Remote monitoring available WRAS approved If you would like to discover how Q-ton can meet your specification requirements, please visit: https://mhi-hvac.co.uk/ourproducts/q-ton-water-heating Ryan Jules, regional maintenance manager at The Ascott Limited UK, who hired KiPO Consultancy to assist with the key sustainability carbon reduction project, said: action towards meeting both the UK Government and CapitaLands 2030 Sustainability Master Plan target of a 78 per cent reduction in carbon emissions by 2035, for the UK Govern!m Martin Craxton, of consulting engineers KiPO, worked closely with Citadines to develop a complete renewable solution for the hotel chain. He said: Q-ton is an ideal product for commercial water X! a natural refrigerant with ultra-low global warming potential, to produce ! ! is required by the hotel to combat Whilst the Q-ton solution was marginally more expensive on capital as alternative, the client was willing to make this extra investment, demonstrating their commitment to sustainability. Central Londons atmosphere is now rid of the hotels 600 kW of gas-burning emissions. Q-ton holds ! and still provides full operation at ! Unlike water heaters using gas or oil, renewable heating systems are not usually designed for instant hot water. Instead, KiPO designed the system using a method known as energy accumulation to meet the load. The heat pump generates the energy, and a thermal store holds the hot water until it is used. Principal contractor Nationwide Air Conditioning installed three Q-ton heat pump units and six 1000-litre storage vessels at ground level while at the roof level were still in use. The transition to the new system took just a few hours towards the end of the project, ensuring minimum disruption to the property. Nationwide Air Conditioning was supported throughout the installation by the wRX included online design, training, system design schematics, a pre-commissioning site visit and As a modular system, Q-ton is simple to install and commission, with minimal wiring and straightforward controller setup 36 March 2022 www.cibsejournal.com p36-37.CIBSEMagMar22.indd 36 21/02/2022 16:36