Introducing the new generation of gas burners, energy efficient

We are delighted that the latest energy saving condensing gas burner we retro fit / install when carrying out our refurbishments with units has just won commercial heating product of the year at the 2017 H&V awards in London. This time of the year is also the best time to consider these type of work […]
London Hospital HTM upgrade & Refurbishment

The trusts’ units are reaching the end of their life expectancy with many internal components in poor condition. A consultant’s study had been put into place to replace the AHU’s, however due to the limited space within the existing plantroom along with the long period of downtime connected to the replacement option, a full HTM […]
Waitrose Chiswick – Decarbonisation

Overview As part of Waitrose’s decarbonisation programme, the existing roof-mounted air handling units serving the Chiswick store were refurbished to remove reliance on gas-fired heating and improve energy efficiency. The AHUs were structurally sound but equipped with legacy gas burners and inefficient fan assemblies that were no longer suitable for a low-carbon strategy. AHS Specialist […]
Large Commercial Building Canary Wharf

The existing unit was fitted with two large backward curved fans and two 37kw motor’s that had been nearing the end of their lifespan. The client wanted to improve energy efficiency and also have the ability to still run the unit at 95 to 100% if a single fan failed within the new design as […]
AHU Refurbishment vs Flat-pack Replacement

Delivering the right solution for constrained, live environments Existing buildings often face the same core challenge: Ageing or inefficient air handling units operating in locations where access, downtime and disruption are critical considerations. Selecting the right upgrade strategy, whether refurbishment or full replacement, can have a major impact on cost, programme and operational continuity. These […]
Brighton Hospital Direct drive fan upgrade

The existing belt driven fan was found to have heavy corrosion on the fan blades, corroded inlet damper and fan section located within a coastal environment. A high-pressure AC plug fan was installed, along with a replacement stainless steel damper, bulkheads, corrosion treatment and stainless-steel flooring. Works completed over a weekend. Before Upgrade […]
London Hospital EC fan upgrade, HTM level refurbishment

The existing belt drive fan was coming to the end of its life cycle, and the trust required a small increase in fan performance. A replacement EC fan was installed c/w commando plug and sockets, with new door layouts, stainless steel internal bulkheads, doors c/w double action hinges to meet HTM requirements and flooring […]
Large AHU DX heat pump upgrade on a number of units

Scope of works: Upgrade AHU to utilise DX heatpumps, EC fans, and mixing dampers, allowing the removal of the existing gas burner and assisting with the site decarbonisation scheme. BMS upgrades to suit heatpump design were carried out by the incumbent controls company with assistance provided by AHS-SS technical support. Within the wider commercial sector […]
Large Retail Store – Enclosure Replacements

Situated in a coastal environment, the existing control panel enclosures were heavily affected by corrosion and water ingress. The large AHUs remained in good mechanical condition with satisfactory remaining service life. However, deteriorated controls enclosures posed a risk of reduced lifespan. To address these challenges, the project team removed and stored the existing TREND control panels […]
Hospital Toilet Extract Twin Fan

The original units’ fans had failed, along with the roof becoming damaged and being held in place by a paving slab. Due to budgetary constraints, the customer could not afford the cost of a full replacement and on inspection of the original casework, a solution to upgrade the fans and installing a replacement roof […]