Emerson 1F95-391 manual FAQs, cont, What is the thermostat

FAQs	1F95-391
(cont.)	You can raise and lower the temperature a few degrees above and below the room tempera-
16. What is the thermostat	ture and each time expect to hear the thermostat click on and off within a few seconds. If it
Click Test?	clicks, it is operating properly.
17. What do AUX,	Aux. = Auxiliary Heat or the second stage of heat in the Heat mode. This is energized
EMER, and MALF	when the Heat Pump is not keeping up with the thermostat setting. It is normal operation
indicators mean on a	with most pumps for the thermostat to call for auxiliary heat.
heat pump thermostat?	Emer. = Emergency Heat. When switched to Emergency the thermostat bypasses the pump
	and uses the back-up heat. This is useful if the pump is not operating correctly or if the
	temperature outside is so cold that the pump is not economical to run.
	Malf. = Malfunction. Malfunction indicates the heat pump system is sending a signal to the
	Malfunction Light on the thermostat terminal marked “L”. It does not indicate a malfunc-
	tion in the thermostat. The manufacturer of the Heat Pump system can determine the likely
	cause of malfunction indication on the thermostat.
	In many heat pump systems Emergency and Auxiliary heat are the same source. If you
	switch the thermostat to Emergency it will bypass the heat pump and bring on the back-up
	heat. If you leave the thermostat in the Heat mode it will call for Auxiliary when the pump
	is not keeping up with your setpoint temperature. Emergency is energized on a call for heat
	in the Emergency heat mode.

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