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When do you turn on emergency heat - Goodman Heating & Cooling

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The thermostat should provide that function.

Posted on Aug 09, 2015

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Posted on Jan 02, 2017

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Is there any danger in running my Carrier HVAC in "Emergency Heat" mode all the time?


No theirs no danger in running the Emergency Heat all the time, Emergency Heat is your backup heat mode. when the Heat Pump is not working do to a malfunction or Defrost, the Emergency Heat kicks in. The Emergency Heat is usually electric heaters so your electric bill will be much higher.

Nov 07, 2016 | Carrier Heating & Cooling

1 Answer

Color code for theromstat


Wiring Examples and Instructions
How-To-Wire-It.com
Basic or Common Connection Points
Terminal Colour Signal-Type Description C Black 24 Vac Common Common side of 24 Vac Transformer See Diagram below R or V red 24 Vac Transformer Power Power side of 24 Vac Transformer See diagram below RH or 4 red 24 Vac for heat 24 Vac power before heat switch see diagram below Rc Red 24 Vac for cool 24 Vac power before cool switch see diagram below Y Yellow switched power (cooling) Signal to turn on cooling system see diagram below W White Switched power (heating) Signal to turn on heating system see diagram below G Green Switched power for fan Signal to turn on fan (forced air) see diagram below
Heat Pumps/Multi-Stage Units
Terminal Colour Signal-type Description Y2 Can vary Switched power (2nd stage cooling) 2nd stage cooling signal to compressor W2 Can vary Switched power (2nd stage heating) 2nd stage heating/ sometimes used as emergency heat E Can vary Emergency heat enable Dedicated emergency heat 0 Orange Reversing value Reversing dynamics of the heat pump ----

Nov 22, 2015 | Honeywell Digital Round Thermostat,...

1 Answer

My thermostat has both auxillary and emergency light on,both are green,what does that mean?


Aux light; This turns on when the auxiliary (second stage) heating is in operation
It turns on 1-6 F below first stage and is user adjustable

Emergency light; This light turns on whenever the emergency heat is manually selected
(Mode switch is in the EMER position)
While in the emergency Heat mode, the heat pump compressor is off,
and the emergency heat (same as the auxiliary heat) maintains the
set point temperature

Jan 22, 2014 | Computers & Internet

1 Answer

We have a new a/c and the system has heat strips. For a/c. we have had the thermostat set on AC at 72degrees. Now that it is getting colder and may need some heat in the house, do we switch the...


If your thermostat has an emergency heat setting this means you have a heat pump system.
Yes you need to set the thermostat to heat for heating the house.
The emergency heat setting should never be used unless your outside unit is not functioning.
The emergency heat setting overides the heat pump (the outside unit will not be energized).
The emergency heat setting will run the auxillary heat (heat strips) only.
When the thermostat is set in the heat position the heat pump will run to heat your house.
If the heat pump can't keep up (extreme cold) then then the auxillary heat will kick in to augment the heat pump until it satisfies the thermostat settings. If your room temperature gets 2 degrees below your thermostat setpoint, your auxillary heat will kick on. Example, say you are going to be gone a couple of days and you turn your heat down to 60 degrees. When you return and it is 60 degrees in your house, you turn the thermostat up to 70 degrees. Since you are turning the temperature up 2 degrees or more (10 degrees in this case) from the 60 degree room temperature then the heat pump will come on and the auxillary heat strips. The unit will continue heating like this until the temperature in the house gets to 69 degrees and the heat strips will turn off and the heat pump will continue to run until the 70 degree setpoint is reached.
Hope this helps.
SeagullAC

Sep 15, 2011 | Heating & Cooling

1 Answer

Unit set to heat but outside unit fan won't turn on. Outside temp is below freezing. The weird thing is that you unit is putting out heat and not set to emergency heat


If it is a heatpump, the outside unit should not turn on below 35degrees or so. Below that temperature, the unit cannot effeciently exchange heat. When the outside temperature is low, the system automatically switches over to auxillary heat which uses the same heating elements as emergency heat.

Jan 11, 2011 | Ruud Heating & Cooling

1 Answer

Heater works, but only on Emergency Mode


It sounds like you have a "setback thermostat" A control intended to increase efficiency by allowing the fan to run for an adjustable amount of time after the heater turns off, whether the heater is electric or part of a heat pump. If the "setback" time is too long, the element will cool off and the fan will blow cold air. Try and locate the instructions for the thermostat and see if the "fan run time after heat turn off" is adjustable and reduce it by half. Most emergency heat circuits bypass control circuits (its an emergency, you know), and require manual control.

Jan 11, 2010 | Heating & Cooling

1 Answer

New heat pump system freezing, questioning wiring.


W1 and E on stat need tied together. When W1 comes on wire where all heat elements come on. On the outside unit defrost board set the 45-60-90 to 45 and see if that takes care of the frost problem.

Jan 03, 2010 | Heating & Cooling

1 Answer

I only have two settings. Which is which and how so?


I think you probably have a heat pump. Aux heat is electrical resistance heat coils that produce heat when the heat pump can not produce enough to keep the temperature up (caused by low outside temperature or a problem with the refrigerant system). This resistance heat can be switched on by the emerg. heat button. It also can come on automaticlly (sp) and will be indicated by the aux being shown on the thermostat. Sometime if you set the heat up several degrees by thermostat the aux will come on to help the system catch up to the desired temperature setting. The emerg. heat is a way to turn on the AUX manually. If you do not have a heat pump system then it is possible that you have a heat pump thermostat installed on a non heat pump system. Emergency heat and Aux are both the secondary.

Hope this makes sense1

Bob

Oct 17, 2009 | Ruud Central System Air Conditioner

1 Answer

Rheem heat pump. blower will not turn off


The fans are set to delay for 60-90 seconds to remove all heat from the heat exchanger/heater elements.

If the fan runs any longer than 3-4 minutes after the Emergency Heat shuts off, you may have a bad sequencing relay in the air handler.

Jan 27, 2009 | Heating & Cooling

1 Answer

No heat


1 Inspect Cooling System Mix Coolant level low or flow is restricted. grey_line.gif 2 Inspect Thermostat Thermostat stuck closed grey_line.gif 3 Inspect Heater Control Valve Leaking or defective heater control valve.

Dec 04, 2008 | 2002 Pontiac Aztek

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