A Radiator thermostat is installed onto a Thermostatic Radiator Valve Body (TRV body). The combination of both, the Thermostatic Radiator Valve (TRV), controls the room temperature by adjusting the flow of hot water through a radiator.

TRVs are installed in water-based heating systems on the supply or, less commonly on the return connection of radiators. Radiator thermostats of this type with liquid sensor fulfill the European Standard EN 215 when used with certified Honeywell TRV bodies. Honeywell radiator thermostats with Honeywell (HW) M30 x 1.5 connection are suitable for all TRV body and radiator inserts with M30 x 1,5 connection and 11,5 mm closing dimension.

Main features

• Conforms to European standard EN 215
• Equipped with liquid sensor
• “Memory-clip” simple visual check of selected settings
• Tested and approved by the Federal Office of Civil Defense for application in enclosures
• Conforms to TL 4520-014 Class 1 of the Federal Defense Committee
• The control range can be simply blocked, restricted or narrowed

Installation examples

Location of separate sensor