District Heating Commissioning Engineer

District Heating Commissioning Engineer - Heat Networks / HIUs London & South East - Field Based £45,000-£55,000 Basic Salary + Benefits Full-Time | Permanent We're recruiting an experienced District Heating Commissioning Engineer for an established UK heat network specialist providing metering, technical and operational services to residential and commercial developments.

This is an excellent opportunity for an engineer with experience in district heating, Heat Interface Units (HIUs), heat metering or communal heating systems to work on technically challenging projects across the growing UK heat network sector.

You'll be responsible for commissioning, testing and troubleshooting heat network equipment, ensuring systems operate efficiently, reliably and in accordance with project requirements. The Role Commission and test district heating and communal heating systems Carry out commissioning and functional testing of Heat Interface Units (HIUs) Commission heat meters, associated controls and metering communication systems Test heating and domestic hot water performance across residential developments Check system temperatures, pressures, flow rates and differential pressures Diagnose faults involving HIUs, control valves, pumps, sensors and associated equipment Verify heat meter readings, connectivity and data transmission Support the commissioning of new-build heat networks and existing system upgrades Work with mechanical contractors, developers and property management teams Review mechanical drawings, hydraulic schematics and commissioning documentation Identify installation defects, performance issues and commissioning requirements Assist with balancing, system optimisation and energy efficiency improvements Support the integration of metering and pay-as-you-go systems Complete commissioning reports, test certificates and handover documentation Provide technical support to internal engineering and operations teams Ensure all work complies with relevant health and safety requirements The Candidate Experience as a Commissioning Engineer, District Heating Engineer, HIU Engineer or Mechanical Commissioning Engineer Strong understanding of district heating, communal heating or hydronic heating systems Experience commissioning or fault-finding Heat Interface Units (HIUs) Knowledge of heat meters, flow measurement and temperature controls Understanding of heating system hydraulics, differential pressure and water flow Experience with pumps, control valves, heat exchangers and associated mechanical equipment Ability to interpret mechanical drawings and hydraulic schematics Good electrical and mechanical fault-finding skills Experience with metering communications, M-Bus or remote monitoring advantageous Familiarity with CIBSE CP1 Heat Networks Code of Practice beneficial Relevant qualification in Mechani...

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