Heating systems
Small footprint is a giant leap
HVR had a rare opportunity to visit the Remeha headquarters in Apeldoorn, the Netherlands, to find out more about the new floorstanding Gas 220 Ace condensing boiler which makes a giant leap in space saving
D
escribed as a powerful, ultra-compact Class 6 NOx boiler that puts control in your hands, the Gas 220 Ace has come about as a result
of an all-encompassing research and development process with extensive input from the UK team. UK sales director, James Porter, said: “At any one time there is invariably a contingent from the UK visiting Apeldoorn. We all have massive input into R&D because we all have our reasons why and how we want the products to change. At the heart of the boiler, and key to its compact
size, is the monobloc (cast from a single piece of aluminium) heat exchanger that ensures exceptional heating reliability, efficiency and durability while almost half the size of previous models. “Space is key,” says James. “What we’ve been hearing is that restricted space in pipe rooms is a massive issue and how we then get a boiler into the pump room has always been something Remeha has looked at. “More importantly, it’s about how we design these
boilers into working systems and pump rooms that we work in day in and day out. “From the beginning what we fed into the
R&D process was that we wanted to put the boilers side by side and back to back, shrinking that footprint further and meaning we could get massive outputs taking up minimal space. The successor to the Gas 210 Eco
Pro, the new Gas 220 Ace combines proven condensing technology with the latest innovation to deliver remarkable performance, reliability and design flexibility. The Gas 220 Ace range is designed for central heating and indirect hot water production at working pressures up to five bar in new and existing buildings. Available in 160, 200, 250 and
300kW models with outputs from 34.7kW to 310kW, it achieves high gross seasonal efficiencies of up to 97.7% for energy-saving operation. The design means that all
connections and pipework enter the top of the Gas 220 Ace, allowing the boilers to be
20 June 2017
positioned in space-saving modular configurations. Cascade options for up to four Gas 220 Ace boilers in-line and up to eight boilers in a back-to-back arrangement provide superior design flexibility, making it possible to install a high heat output in a small area. A service friendly feature is a new internal
service light, a new inspection glass and a cleaning tool and gasket to remove any dry scale on the cleanable aluminium heat exchanger. The ‘Click and Go’ condensate drain has been positioned underneath the Gas 220 Ace, removing the need to dismantle the boiler for access. A central feature of the Gas 220 Ace is its pioneering two-level entry control platform with time and temperature controls supplied as standard and an enhanced, back-lit panel for input and control. In-built 0-10V and free volt contacts allow it to be connected directly to any Building Management System without the need for additional parts. James said: “With the new Gas 220 Ace we’ve built upon proven technology, addressing all the smallest design details to deliver a solution to some of the biggest current and future heating challenges. The result is a premium boiler that ticks all boxes, from ease of installation to design simplicity and performance capability.” The Gas 220 Ace comes with a five-year heat exchanger warranty and a two-year parts and labour warranty.
Early runs with the new boiler have been highly successful with contractors favouring not only the boiler’s easy-to- manage footprint but also its manoeuvrability. See the case studies opposite All boilers come with pallets which become ramps and because the boilers are on wheels, they can easily be moved in to the plants rooms.
THE FEATURES AT A GLANCE
• High heat output to physical size ratio – easier access and smaller footprint
• All connections and pipework at the top of the boiler – enables side-by-side or back-to-back po- sitioning for flexible modular configurations • Compact, lightweight and supplied with wheels – easy manoeuvrability • Flushing points and removable front section as standard – easier cleaning • ‘Click and Go’ condensate drain located un- derneath rather than inside the boiler – no boiler disassembly required to descale or clean • In-built flue non-return valve – multiple Gas 220 Ace boilers can be flued in a common flue header • Multiple flueing capabilities – flexible installa- tion in new and existing buildings • Service friendly – internal LED light and cleanable heat exchanger • New aluminium monobloc heat exchanger – single stress free casting for superior perform- ance, efficiency and durability • High efficiency up to 97.7% GCV – energy sav- ings from reduced gas usage • Ultra-low NOx emissions to ErP Ecodesign (iii) 2018 and EN15502 Pt1 2015, Class 6 – eligible for full BREEAM credits and future proofed for regulations
• Optional high temperature secondary return feature - optimises operation with renewable technology and variable temperature systems • Time and temperature controls supplied as standard - easier control • In-built 0-10V and volt-free contacts - can connect to any BMS without the need for addi- tional parts.
www.heatingandventilating.net
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