0
Because it is cold outside and the HP is useless below 35* or so.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What does the EM heat mean on your thermostat for your central AC heating unit?
If you have a heat pump A/C unit then you have auxillary heat and emergency heat. The EM stands for emergency heat, which is using only your electric heat strips or gas heat, depending on your system. The auxillary heat uses your compressor inside of your outside unit. Say the house is 60 degrees inside and you set your stat to 70, the temperature difference is so great that if the heat pump alone cannot satisfy, then the auxillary heat would come on to assist the heat pump. Say you were to get a leak in either your condenser or evaporator coils, your heat pump would not work on the regular heat setting on the tstat. In this circumstance you would want to use just the emergency heat until a service tech can evaluate the system.
Can you pump down a heat pump system in heat mode just as you would do in the cool mode?
No, the energy in a heat pump system must be transfered to another heat pump system because the first law of thermodynamics say that energy cannot be created nor destroyed
Can a heat pump thermostat be used on non heat pump air conditioning system?
yes it can but everytime you want heat you have to put it on Emergency Heat..
What is the difference between heat engine and heat pump?
Heat Engine is the system that converts the Heat energy into mechanical work while Heat pump converts the work into heat
Does EmHeat costs more than the heat pump mode in an airconditioning system?
yes it does as the heat pump is more effeciant.
How do you know if you have a heat pump?
If your themostat has an emergency heat (eheat) setting on your mode selector( Cool Off Heat Eheat ) this is the most common indicator of a heat pump system.
Will central heat work without air conditioner?
Yes, as long as it a gas system and not a electric heat pump system
Should your outdoor HVAC compressor run when your heater is on?
no sounds like your wires are crossed at your thromsthat Answer If you have a heat pump system, YES the compressor should run. You can find out if the system is a heat pump usually by looking at the thermostat. Heat pump thermostats usually have "Cool-Off-Heat-Emergency Heat" on the system switch. Another way would be to feel the air coming out of the outside unit when the heat is on. If the air coming out feels very cold, then it's a heat pump. even if you have a heat pump, the only way the in door unit should be producing heat is if you are all electric if you are gas the heat pump should lockout to prevent the persure from getting to high causing the indoor coil to blow up.
Does the fan outside on the unit have to work for the central heating unit?
is it really run ning or is it possible that you have a heat pump system and it is the heating portion of the system operating?
Can a salt system be added to a pool heated with a heat pump without harming the heat pump?
Absolutely: The equipment does not know the difference in what chemical you are using.
Which setting should iuse on electric thermostat heat or em heat what is difference?
On a system that uses a Heat pump, the heat setting utilizes the pump, and electrical coil heating as a backup. On the EM setting the heat pump won't run, only the axillary coils will provide heat.
Heat pump Or gas furnace and AC unit which system to install?
Your location matters. If in Florida heat pump in more northern climes furnace & ac.
