Room thermostat Sourcing ICMA 5–30°C — mechanical temperature controller for heating systems

The Sourcing ICMA 5–30°C room thermostat is a mechanical temperature controller designed for domestic heating systems. It provides manual setpoint control over indoor temperature with a clear graduated scale from 5 to 30 °C. The device is intended to regulate boilers or radiator valve actuators and offers a straightforward, low-complexity solution for maintaining stable ambient temperatures in homes, apartments and small commercial premises.

Advantages

The thermostat features a simple mechanical mechanism that does not require programming or battery replacement and gives direct tactile feedback when adjusting the setpoint. Its visible temperature scale and robust construction make it easy to read and operate. As a mains-independent controller for basic heating control tasks, it integrates with standard valve actuators and boiler control circuits to deliver reliable temperature maintenance without the need for digital interfaces.

Suitable for

• Domestic heating systems with radiator valves or boiler control inputs
• Apartments and individual rooms where a single mechanical setpoint is sufficient
• Small commercial spaces with simple temperature control requirements
• Replacement of older mechanical thermostats in conventional HVAC installations

Key specifications

• Adjustable temperature range: 5–30 °C
• Mechanical (non-programmable) control principle
• Manual rotary setpoint adjustment with clear scale
• Compatibility with standard heating valve actuators and boiler control circuits
• Intended for indoor room mounting

How to use

Mount the thermostat on an interior wall away from direct sunlight, drafts, or heat sources to ensure accurate reading of ambient air temperature. Connect the device to the heating system wiring following the system manufacturer’s wiring diagram: the thermostat acts as a switch to call for heat when the room temperature falls below the setpoint. Set the desired temperature by rotating the dial to the required value on the 5–30 °C scale. Periodically check the mechanical linkage and contacts for proper operation as part of routine system maintenance.

Usage recommendations

Place the thermostat at typical room height (about 1.2–1.5 m) on an interior wall and avoid installation near radiators, doors to exterior spaces, kitchens, or windows to reduce measurement bias. For zoned or programmable control needs, consider using an electronic or programmable controller; for simple single-zone temperature regulation the mechanical Sourcing ICMA thermostat provides straightforward and reliable operation.