NuTone 9412D Instrucciones De Instalación página 5

OPERATION
Before using heater, make sure heater has been properly installed
according to installation steps beginning with the "PLANNING"
section on page 1.
MODELS 9417DN & 9427P OPERATION NOTE: These units are
designed with a thermostat which senses excess heat and may start
the blower automatically. This is normal and is no cause for concern.
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