Apartment Water Metering

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Unicount Koax OT (Without T)

What does the "OT" designation mean in the Unicount Koax range?

The abbreviation OT comes from the German "ohne T-Stück", which literally means "without T-connector". This variant is intended for professionals who already have their own connection systems or who work on hydraulic configurations that do not require the standard T-pieces supplied in the usual kits.

Which installation systems are compatible with the OT version?

The Unicount Koax OT integrates natively with the leading installation frame systems on the Swiss market:

System Centre Distance (A)
Geberit GIS 248 mm
Geberit DUOFIX 420 mm
Nussbaum Optivis 430 mm
TECE / TECEprofil 440 mm

What exactly does the Unicount Koax OT delivery kit contain?

Each OT unit is delivered ready to install with the following components:

Component Quantity
Unicount Koax with site protection and cover plate 1
Pressure test covers 2
Caps (upper parts) 3/4" 2
Fixing sets 4
Connection plates with acoustic insulation (GIS, DUOFIX, etc.) 2

Note: T-connectors, clamps and measuring capsules are not included in this version.

What are the technical performances of the OT variant?

Characteristic Value
Pressure Resistance Min. 25 bar (SN EN 1213)
Acoustic Group Group I (ISO 3822)
Maximum Temperature 90 °C
Maintenance Stainless steel seat, Phillips screwdriver

Why choose the OT version over the T version?

The OT version offers total connection freedom while retaining the benefit of the Unicount Koax logical process: the system remains neutral during the structural phase. You install the structure and finishing plate, then choose your data collection technology — Radio, M-Bus or manual — at a later stage.

It is particularly suited to installations featuring direct manifolds or specific components, avoiding the unnecessary purchase of T-connectors not required for your configuration.