Domestic Air Conditioning Maintenance in London, London for Baltimore Wharf/ Millwall Docks
Air Conditioning maintenance — Crossharbour Plaza E14, London, London
Our Client’s Problem
Baltimore Tower is a new High-rise residential skyscraper in the heart of Canary Wharf. Containing both Residential Apartments, Shops, Café and Gyms. It is a 45 story building with 2 basement levels nd 43 stories above ground. Report of various floors showing faults in the Air Conditioning systems.
What We Did
Essex Cooling Limited was called to a multi-storey residential building following reports of multiple HVAC system faults affecting several upper floors. The site operates a centralised air conditioning system with VRF/VRV indoor units, flow switches, and a water-based secondary circuit supported by pumps. The issue impacted comfort levels across multiple tenanted floors and required urgent diagnosis to minimise disruption. Initial Fault Report Upon arrival, the building management system (BMS) / centralised controller indicated faults on: Floors 33, 38, and 43. Additional alerts later observed on floors 41 and 42 Reported issues included: Pump interlock fault (initial assumption),Multiple unit alarms across floors Loss of cooling performance. Investigation & Diagnosis Step 1: Communications Fault - Inspection confirmed the fault was not a pump interlock issue, but a communications fault. A loose comms cable to the indoor units was identified. Action Taken: Re-secured communications wiring. Restored connection to central controller. Fault cleared and system reset Step 2: Flow Faults across all affected floors. No water flow was detected through the flow switches. Flow switches were tested and confirmed operational: Audible click when activated, circuit closed correctly Conclusion: The issue was not with the air conditioning units or flow switches, but due to lack of water flow. Root Cause. Fault traced to the water circuit, not HVAC equipment. Action Taken Essex Cooling gave a detailed listed of possible causes and made recommendations which were carried out, including regular PPM maintenance
