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Cooling Maintenance

Chilled Beam Maintenance Checklist

Keep chilled beams cooling quietly and condensation-free — coil cleaning, valve and dew-point control checks, induction nozzle inspection, and flow balancing.

What is a chilled beam maintenance checklist?

A chilled beam maintenance checklist is a structured list of the 10 preventive maintenance tasks — covering visual, functional, cleaning, safety and record-keeping checks — that keep a chilled beam running safely and reliably. It groups routine checks by frequency, from daily inspections to annual servicing, so FM teams and building engineers can plan and evidence preventive maintenance.

Core chilled beam checks

  • Inspect for any signs of condensation, staining, or dripping
  • Confirm chilled-water flow temperature stays above room dew point
  • Inspect the coil for dust, lint, and fouling and clean as needed
  • Check dew-point/condensation control and any condensation sensors work
  • Record temperatures, dew-point checks, and cleaning in the log

What is a chilled beam?

A chilled beam provides quiet, draught-free cooling by passing chilled water through a coil at ceiling level. Passive beams rely on natural convection; active beams induce room air across the coil using primary air from the ventilation system through induction nozzles. The defining risk is condensation: if the chilled-water temperature falls below the room dew point, the beam sweats and drips. Systems therefore run relatively warm chilled water with dew-point control and humidity management. Maintenance keeps coils and nozzles clean, verifies valve and dew-point control, and confirms there is no condensation, because a dripping beam over an office is both a damage and a reputational problem.

Typical Chilled Beam maintenance checklist

A practical starting point for planned preventive maintenance. Always refer to the manufacturer's O&M manual and site-specific requirements.

Visual Checks

  • Inspect for any signs of condensation, staining, or dripping
  • Check exposed pipework insulation and vapour sealing are intact

Functional Checks

  • Confirm chilled-water flow temperature stays above room dew point
  • Check control valves (often PICVs) modulate and fully close
  • Verify primary air supply and balancing to active beams is correct
  • Confirm room humidity is controlled within the design envelope

Cleaning & Housekeeping

  • Inspect the coil for dust, lint, and fouling and clean as needed
  • Clean induction nozzles (active beams) of dust affecting performance

Safety Checks

  • Check dew-point/condensation control and any condensation sensors work

Record Keeping

  • Record temperatures, dew-point checks, and cleaning in the log

Typical maintenance frequency

Suggested intervals for chilled beam maintenance. Actual frequencies should follow manufacturer guidance and site-specific risk assessments.

Quarterly

  • Check for condensation/staining
  • Verify flow temperature vs dew point
  • Spot-check valves and humidity

Annually

  • Clean coils and induction nozzles
  • Verify dew-point control and sensors
  • Check valves and balancing
  • Inspect insulation/vapour seal

Common faults and issues

Issues to be aware of when maintaining chilled beam equipment.

Condensation and dripping when chilled-water temperature drops below room dew point
Dust on coils and induction nozzles reducing cooling output over time
Humidity control failure raising dew point and causing beams to sweat
Control valves not fully closing, overcooling and wasting energy
Primary air imbalance on active beams reducing induction and capacity
Damaged pipework insulation or vapour seal causing localised condensation

Safety and compliance notes

Key safety considerations for chilled beam maintenance. This is general guidance only — always follow OEM instructions, statutory requirements, and your organisation's safe systems of work.

Condensation control is the key safety/asset risk — never run chilled water below dew point without protection
Confirm condensation sensors and dew-point control before relying on them
Maintain pipework insulation and vapour sealing to prevent hidden condensation
Manage room humidity (often via the AHU) as part of beam operation
Use safe access for ceiling-level work and isolate before valve work
How PM Assist helps

Managing Chilled Beam documentation with PM Assist

PM Assist helps FM and building operations teams search their O&M manuals and building drawings in seconds. Upload your chilled beam documentation and ask questions like “What is the chilled-water flow temperature?” or “Which zones use chilled beams?” — and get source-cited answers instantly.

See PM Assist answer questions about a real chilled beam manual — try the live demo, no signup needed.

Take this checklist with you

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Frequently asked questions

Manage your building documentation with AI

PM Assist gives FM teams instant access to O&M manuals, drawings, and maintenance knowledge — all searchable with AI.

  • Upload and organise building documentation
  • AI-powered search across all your manuals
  • Source-cited answers for maintenance queries
  • Team collaboration and access control
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