Key points
- Every TMV should be listed with its location, type, installation date and service history — an inspector will ask for this list before anything else.
- Typical starting intervals: annual servicing for TMV2 valves, and six-monthly for TMV3 valves in healthcare and care settings under HTM 04-01. Your risk assessment and the manufacturer's instructions set the actual frequency.
- A service means stripping the valve, cleaning and descaling the internals, replacing seals, testing the fail-safe and recommissioning — then writing it down.
- Keep TMV service records for at least five years under ACOP L8; longer in healthcare.
| Location | Type | Installed | Last service | Interval | Next due | Status |
|---|
| Shower room 3, 1st floor | TMV3 | 10 Mar 2024 | 12 Jan 2026 | 6-monthly | 12 Jul 2026 | In date |
Example This is what a valve looks like on the register. Add your first valve above — entries are stored only in this browser, so export regularly to keep them safe.
How often each valve needs servicing
The interval the register applies depends on the valve type and the setting toggle above it. These are typical starting points, not guarantees: your own risk assessment and the valve manufacturer's instructions set the actual frequency, and hard water areas often justify shorter intervals because scale works faster on the internals.
| Valve | Where it is used | Typical interval | Basis |
|---|---|---|---|
| TMV2 | General and domestic settings — offices, let property, schools outside clinical areas | Annual | Risk assessment and manufacturer's instructions |
| TMV3 in a standard setting | Healthcare-specification valve fitted outside a healthcare or care premises | Annual | Risk assessment and manufacturer's instructions |
| TMV3 in healthcare or care | Hospitals, care homes and other premises under HTM 04-01 | Six-monthly | HTM 04-01 maintenance practice |
Set the toggle to Healthcare or care and every TMV3 valve on the register moves to a six-monthly interval automatically; TMV2 valves stay annual either way. TMV2 versus TMV3 explains the two certification schemes if you are not sure which valve you have.
What a TMV service covers
A proper service is more than a temperature check at the tap. The valve is isolated and stripped, the internals are cleaned and descaled, seals and wearing parts are replaced, and the valve is reassembled and recommissioned. Two checks close the job: the outlet temperature holds at its set point, and the fail-safe works — shutting the flow down if the cold supply is lost, so the outlet cannot suddenly run scalding hot. Both results belong in the record against that valve, with the date and who did the work. TMV servicing and legionella walks through the schedule in detail.
What this register does — and does not do
The register records your valves and flags dates against typical service intervals. That is all it does. It does not certify that a valve is safe, that a service was done properly, or that your system is compliant. An overdue flag tells you a date has passed against the interval shown — it cannot tell you the condition of the valve. Used properly, the register is the index your service records hang off: each row here should match dated, initialled service entries in your log book, kept for at least five years.
Get the blank register sheet + free template by email
Prefer a paper register for the plant room file? We will email you the blank TMV register sheet and the ACOP L8 risk assessment template it sits inside — free, no spam.