Amana REMOTE CONDENSING UNIT user manual Typical Thermostat Operation, Emergency

Typical Thermostat Operation

Your thermostat is the control center for your Split System. It is very important that the thermostat be located where it can best “sense” the average room temperature. It must not be located where it is exposed to hot or cold drafts or to hot or cold spots on the wall, such as those received from outside walls, walls with pipes inside, or from openings into the attic. Because of the wide variety of programmable thermostats available, we cannot describe how all of them work. However, a typical thermostat has two switches: a SYSTEM switch and a FAN switch.

WARNING

To avoid possible equipment damage, personal injury, fire or death, the following instructions must be observed regarding unit location, air requirements and operating procedures.

The SYSTEM switch can include settings of HEAT, OFF, COOL, AUTO:

HEAT – Your comfort system provides heat when the temperature in the room falls below the temperature selected. No matter how warm the room becomes, cooling will not be pro- vided.

OFF – Your comfort system will not provide heating or cooling, no matter how cold or hot the room becomes.

COOL– Your comfort system provides cooling when the temperature in the room rises above the temperature selected. No matter how cold the room becomes, heat will not be pro- vided.

AUTO– Your comfort system will provide heat when the temperature in the room falls below the temperature selected, and will provide cool- ing when the temperature in the room rises above the temperature selected. With most of these thermostats, you will have a tem- perature range in which neither heating or cooling is being provided. The AUTO set- ting will help your building avoid tempera- ture extremes, but it may increase your operating costs.

Room Temperature		Cool/Heat
Thermostat
	Temperature
	Control Dials
			System	Fan	Action
			Switch	Switch
			OFF	AUTO	None
			COOL	AUTO	System only cools, fan
					cycles off and on.
			COOL	ON	System only cools, fan
					runs all the time.
			HEAT	AUTO	System only heats, fan
					cycles off and on.
			HEAT	ON	System only heats, fan
					runs all the time.
			OFF	ON	No heating or cooling,
		Cool/Heat			fan runs all the time.
	Fan Switch
		Switch

Typical Thermostat

EMERGENCY

HEAT – EMERGENCY HEAT is only used with heat pumps. Emergency heat means the com- pressor (i.e., the outdoor unit) is turned off, and your backup source (if present) will pro- vide heat when the temperatures in the room falls below the temperature selected. (No matter how warm the room becomes, cooling will not be provided.) The backup source is usually electricity, but it may be a gas or oil furnace. The EMERGENCY HEAT setting may be used if you suspect a prob- lem exists with the heat provided by the compressor, but your dealer is not able to service it immediately. With some comfort systems, the EMERGENCY HEAT setting may also be used to provide a quicker warm-up of the room. Once the warm-up is completed, you should usually return the system switch to the HEAT or AUTO setting. If you leave the system switch in the EMER- GENCY HEAT setting, it may increase your operating costs.

NOTE: Keeping your windows closed whenever the thermostat SYSTEM switch is in the HEAT, COOL or AUTO setting will keep operating costs down.

The Fan switch may include settings of AUTO and ON:

AUTO– The indoor fan is operating when heating or cooling is being provided. NOTE: With some comfort systems, the indoor fan may continue to run for a short time after the compressor shuts off. With most gas fur- naces, the indoor fan will start a short time after the burners are lit, and will keep run- ning for a short time after the burners shut off. When your comfort system is not heat- ing or cooling, the fan will not run.

ON – The indoor fan runs continuously.