Pressurisation Set (Packaged) Maintenance Checklist
Maintain packaged pressurisation sets with checks for integrated controller programming, spill vessel condition, manufacturer-specific fault codes, and warranty-compliant servicing procedures.
What is a pressurisation set maintenance checklist?
A pressurisation set (packaged) maintenance checklist is a structured list of the 10 preventive maintenance tasks — covering visual, functional and record-keeping checks — that keep a pressurisation set (packaged) 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 pressurisation set checks
- Inspect the integrated fill connection, strainer, and backflow preventer
- Read and clear any fault codes or warnings on the controller display
- Record make-up water meter reading and compare to previous readings for leak trend
What is a pressurisation set (packaged)?
A packaged pressurisation set is a factory-assembled unit combining a pump, expansion or spill vessel(s), controller, fill arrangement, and pressure sensors in a single skid-mounted or wall-mounted package. Unlike separately specified pressurisation components, packaged sets have integrated controllers with manufacturer-specific programming, fault code displays, and often proprietary diagnostics. Brands such as Flamco, IMI Pneumex, Caleffi, and Grundfos each have their own controller interfaces and commissioning requirements. Maintenance must follow the package manufacturer's procedures to maintain warranty coverage.
Typical Pressurisation set 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 the integrated fill connection, strainer, and backflow preventer
- Check electrical connections and fuse condition in the controller enclosure
- Inspect all hydraulic connections within the package for leaks or corrosion
Functional Checks
- Read and clear any fault codes or warnings on the controller display
- Verify the controller setpoints match the commissioning record (fill pressure, max pressure, differential)
- Check the spill vessel or diaphragm vessel condition and gas pre-charge
- Test the pump by triggering a low-pressure condition and confirming auto-recovery
- Test the controller's high-pressure lockout and low-pressure alarm via BMS
Record Keeping
- Record make-up water meter reading and compare to previous readings for leak trend
- Verify the package labelling, commissioning data plate, and service sticker are current
Typical maintenance frequency
Suggested intervals for pressurisation set (packaged) maintenance. Actual frequencies should follow manufacturer guidance and site-specific risk assessments.
Weekly
- •Check controller display for fault codes or warnings
Monthly
- •Record make-up water consumption
- •Visual inspection of package condition
Annually
- •Manufacturer-recommended full service
- •Vessel pre-charge check
- •Controller setpoint verification
- •Alarm and safety function tests
- •Update service sticker and log
Common faults and issues
Issues to be aware of when maintaining pressurisation set (packaged) equipment.
Safety and compliance notes
Key safety considerations for pressurisation set (packaged) maintenance. This is general guidance only — always follow OEM instructions, statutory requirements, and your organisation's safe systems of work.
Managing Pressurisation set documentation with PM Assist
PM Assist helps FM and building operations teams search their O&M manuals and building drawings in seconds. Upload your pressurisation set (packaged) documentation and ask questions like “What is the design duty point?” or “When were the pump seals last replaced?” — and get source-cited answers instantly.
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