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What is the difference betewwen a make on break and make on rise pipe thermostat

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I want you to go to the truck and get a part as soon as i decide the part is bad and tell you. that is make on rise. you see that the part is broken and decide on your on to go get a new one as soon as you see it break that is make on break. the diffrence is the time that passed between my deciding i needed a part and your deciding the part was bad.

Posted on Oct 18, 2008

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My Home AC blows hot air


You need to check to see if you have 24 volt signal from thermostat to your reversing valve. To go into cooling mode the reversing valve needs to be energized. Orange is normal color of the reversing valve power supply. On your unit will be a reversing valve which looks like a pipe with 3 pipes attached to one side and 1 pipe attached to the other side. On the side of the the reversing valve will be a coil with a 2 wire connection. This coil needs 24 volts applied to shift unit into cooling mode. In your thermostat wire bundle where it is connected, check for voltage between common and the orange wire. If it does not have 24 volts with the thermostat in cooling mode, you have a break in the line normally a connection on the orange junction inside your air handler or your thermostat orange wire is loose. Keep checking for 24 volts available until you find the source of the loss. If you have 24 volts at the reversing valve, you can check to see if the valve is working by unplugging the 2wire connection on the side of the valve, if it clicks its powered if not and 24 volts available then the coil needs replaced.
Any more than this you will need a professional tech to troubleshoot and fix.
Hope this helps.

Jun 21, 2014 | Goodman CLQ36AR49 Air Conditioner

1 Answer

My heat rises higher than the designated temperature. For example, if I set the thermostat to 60 the temperature will go up to 73. Invensys 9405


there could be a few things causing this, the first would be a bad thermostat. The second would be an improper setting of a heat anticipator on the thermostat, the third could be a stuck zone valve that is allowing heat to go in the zone as another zone is calling. Or it could be a stuck flow check also allowing hot water to flow through the zone much like a stuck zone valve.

If your thermostat is an older one with Mercury in it, replace it with a new one and dispose of properly. If the thermostat is newer, remove the cover or consult the owners manual to see if there is an adjustment that shuts off the thermostat a bit sooner to compensate for the heat that will be released from the system so you do not overshoot your setting on the thermostat. There may be either DIP switches to adjust the setting or a small pointer that slides over a small coil of wire and acts like a dimmer switch. Try adjusting and testing the system to see if it helps. Remember the original settings in case it does not help.

If you have zone valves (small boxes that allow flow of water to the zone) it may be stuck open allowing water to flow into that zone as another zone calls. You can test this by feeling the pipes at a baseboard when you know that the zone over heating is not calling for heat (turn thermostat to lowest setting). Check other zones to see if there is a call for heat in one of them. Make sure you adjust one of the other zones to force a call for heat in it, After a few minutes, feel the pipes in the zone overheating and see if the pipes are getting hot (be careful). This is the same test to check for a stuck flow check valve.

Mar 05, 2011 | Air Conditioners

1 Answer

The plumbers have installed radiators with the hot pipe on the top right side of the radiator and the return pipe at the bottom right side of the same radiator does this sound correct?


Not normal but should work fine.Since heat rises this will allow the radiator to heat up a little quicker than if introducing the heat at the bottom. If the system ran long enough it would not effect the outcome of heating your home.

Jan 18, 2011 | Air Conditioners

1 Answer

DT92E room stat appears to be very inacurate with its room tempreture, our normal room temp is about 22c we have to set the stat at 25c to get heat and the stat cuts out after a temp rise of 1c


All thermostat is calibrated @ difference of 2 degree.to cut in and cut off.
In heat mode, if you keep 25 and your room temp 23. it will start at the end of 24 or beginning of 25 degree.Cut off also @27 degree beginning. Please check Tips & how to do's in Fixya

Jan 11, 2011 | Honeywell Air Conditioners

1 Answer

Have an Intertherm thermostate in mobile home controlling gas hearing and elec ac. Blue wire to thermostat connects to the "A" terminal on the thermostat...Blue wire goes to a terminal on the...


If there are only two wires going to the thermostat? Then you will not be able to use a Digital Programable stat. Intertherm and Coleman furnaces do the switching different than regular furnaces. They use the switching from heat to AC at the furnace with the rocker switch. They use the thermostat to either break the connection or make the connection. They use a heating only thermostat.... Hope this helps

Jan 02, 2011 | Intertherm P3RA-048K Air Conditioner

1 Answer

The wall mounted thermostat in a condominium unit (central HVAC in a high rise) is defective. I need to know 1. how to take out the existing thermostat (Honeywell T6069A1008) and 2. what replacement is...


i think you may have a fan/control board problem, if the thermostat turns on the fan, and you dont touch it, then the fan stops in a short time...
plus the fan is connected to a control board, like i said those thermostats hardly go bad...

Dec 19, 2010 | Honeywell Air Conditioners

1 Answer

I have an Ideal 24mini with a mega flow, I have water dripping from my discharge pipe. But the preassure gage keeps rising up even if I release some preassure freom the heating system. Iv checked the...


Hello It could be a bad/defective EXPANSION tank if it(valve) leaks when the burner is running and the pressure rises at the same time .Otherwise swap the valve as they can wear out.

Sep 21, 2010 | Air Conditioners

1 Answer

I set the thermostat to 70 degrees but it doesnt cool down to 70, it seems that the temp in the house only rises, instead of cools down.


Setting Unit at 70* ? and not cooler ( dropping temp in the house ) Question ? does temp dop at all, if so the Unit maybe unsized, if the temps are going up then the unit is not working at all - maybe just the fan is running. If this is a split unit ( outside unit / furance). A number of things could cause the same problem - call a sevice company. it could be anything -from a Breaker to an electrical part, split Units have to different breakers ( fuse) . Check that first

EM

Apr 26, 2009 | Air Conditioners

1 Answer

Air conditioning


no,
most thermostat wiring is 4 core, because installers use phone cable -its cheap- but there is no accepted color code, and some systems use 2, or 3, or 4 of the wires.
there should be a standard.
terminals on thermostats and furnace, aircons are labelled, but the labelling is often contradictory. some thermostats have function to control the fan separately, some for the same aircon dont.
the manufacturers web site for your aircon,
should give a detailed explanation in install instructions which terminals are open on rise close on rise, heat/cool and how they are connected
the new thermostat should detail which of its terminals match those of the aircon.
test the cable before installing anything at the aircon or thermostat, a lightning strike can have shorted things normally impossible, and the lowV thermostat line could be at lineV and trash anything or anyone connected to it,
  • Lightning strikes are very unforgiving, please be careful, even if the lightning touched down yards away the voltage at large distances from the strike can be 10KV
  • paranoia impels me to recommend an electrician with test equipment for the lines, outside unit, cables and inside units, its better to check and be wrong, than not check and be wrong.

Jun 22, 2008 | Air Conditioners

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