ASHRAE 102-1989

• Continually monitors and adjusts room temperature for consistent comfort and relief from under-heating and overheating Designed with the higher capacity normally required by North American heating systems Valve seat disc, which is made of resilient material (EPDM), ensures tight shut-off on steam or hot water systems Nickel-plated bronze casted body with working parts in cartridge insert for ease of service Controls include sensor, setpoint dial and valve actuator, components may be integral or connected by capillary tubes Require no electrical connections 40 mm Dia collar Self-contained controller with sensor, setpoint dial and valve actuator in one unit

Provide precise and automatic control of room temperature in two pipe systems by modulating the flow of hot water or steam through free-standing radiators, convectors and other heating units with high capacity requirements.