Siemens 188-0031 Unit Mounted Thermostat,
The 188 Unit Mounted Thermostat is a gradual acting
thermostat with a remote bulb operating on the force
balance principle, using pneumatic feedback to obtain
linearity and maintain selecte room temperature by
positioning pneumatic devices to control heating or
cooling.
Applications
The 188 Unit Mounted Thermostats designe primarily
for use in fan coil induction units and unit ventilators to
control the temperature within an occupied space. The
thermostat’s temperature range is limited to applications at
ambient temperatures.
