One or two valves may be controlled directly by the thermostat. Positive deadspot separates heating-cooling circuits in automatic models. Remote changeover switch is required to separate circuits in manual changeover heating-cooling models. Cooling circuit breaks in FAN- OFF position to reduce condensation problems in the fan coil unit. All models may be mounted on standard vertical outlet boxes.
Adjustable range stops limit temperature adjustment or lock at selected set point.
Models available with separate power source for fan and thermostat. Models without manual switching mount on standard vertical outlet boxes. Manual switching models may also mount on a standard vertical outlet box if local codes permit.