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Can you provide me with the wiring instructions, I want to replace the old analog thermostat. I have a roof mounted not ducted Advent A/C and a furnace unit.

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The terminal board on the rtu should match fairly closely with the letter designations on the thermostat. R, W ,(possibly W2) G, Y, (possibly Y2) and C. W2 and Y2 are most likely NOT used on a small capacity rtu (roof top unit) as those terminals are for a second stage of heating and a second stage of cooling.

The thermostat terminals should be Rc, Rh, W, G, Y and C (common). IF the replacement thermostat is programmable the common terminal should be used because that allows the thermostat to run on 24vac and not just battery power.

There should be a factory jumper installed across Rc and Rh and that should stay in place as the two terminals are for systems that have TWO different control transformers. Small capacity rtu's will have only ONE transformer.

Some rtu's have a W2 terminal as well as a Y2 terminal even though they do not have the second stages of heat. You have to determine exactly what your system is prior to changing the thermostat.

Posted on Apr 14, 2015

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Wiring new A/C


ok let me think a little about this, the reason the control box has wires to connect to the thermostat is because some how the power has to run through the thermostat so it can be controlled by it. as you know the thermostat is nothing more than a switch that gets activated by temperature. now lets figure this out. you say the box has only 3 wires, but in your description you mentioned 4. how many is in total?

Dec 24, 2014 | Dometic Heating & Cooling

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Wiring new A/C


you should not have to run a double wire to the thermostat and the power supply. you should be able to come from the power supply and wire the supply and then the other to the t-stat but do get a second opinion. watch the color coded wires though manufacturers changed them to confuse the d i y er

Dec 24, 2014 | Dometic Heating & Cooling

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What does df mean and what do i do about it


www.advent-air.com/advent-furnace-thermostat.htm

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The Advent thermostat in our RV camper keeps giving us an E2 message...what does this mean ?? The furnace will not kick on, nor the air conditioner.


http://www.advent-air.com/media/technical%20docs/TBACE2-001%20AC%20E2%20Error%20Code%20Technical%20Bulletin.pdf

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1 Answer

Dometic ducted a/c will come on and cool---but when it cycles off it will not come back on for hours. have replaced thermostat, circuit board and capicitor. still have same problem---can anyone help??????


Hate to have to ask you so many questions but something isn't adding up here. Original post said it cycles off and will not come on for hours, yet, last comment said if fan on high, compressor kicks in and out every few minutes, so I think I'm getting a little mixed up, sorry. So i need to ask a few more questions. How old is the unit roughly? Has it been working good up until this happened? Have you tried dropping the ceiling assembly down by removing the 4 bolts holding it to roof unit, and looking on the forced air side of the ceiling assembly to make sure there is no obstructions to duct work such as rubber roof material hanging down etc, that would block any flow to ducts. Do you have all, or most of your ducts open to allow cool air to distribute itself properly? If you have done all this work yourself, have you tried by-passing the thermostat and connecting wires at control box, to see if unit stays running that way? If you didn't do the work, don't guess, please.

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2 Answers

Can this be installed over an island?


Bring a focal point to your kitchen by having an island range hood, combining function and elegant form. A suspended hood is also an efficient way to vent
grease, odors and smoke to the outside from a island stovetop while you cook. You can install an island range hood in just a few hours with the right tools
and knowledge.
1.Wear safety glasses and work gloves. Turn off the electricity to your kitchen at the circuit panel. Cover the circuit breaker with a piece of electrical
tape to prevent people from turning the on switch while you are at work.
2.Lay work drop cloths on your cooktop and floor to catch dust and debris. Mark the duct opening with a pencil in the ceiling, where the island hood will be
installed. Be sure the opening is centered directly above your cooktop. Cut the opening using a hacksaw.
3.Go up to the roof, using a cat's claw and hammer to remove stucco, tiles, sheathing and insulation to make way for the steel venting duct. Drop a
plumb bob down the roof, making sure the line is straight down for the ductwork.
4.Follow the manufacturer's instructions for locations, installing 2-by-2 wooden blocks in the ceiling to hold the ductwork hangers.
5.Install the venting duct from the outside of the home, down to the location of the exhaust vents on the island hood. The ducts should easily slip into each
other. Secure all the duct sections with duct sealing putty, using a putty knife.
6.Screw a roof cap on the end of the duct at the roof. Seal any openings or gaps where the roof, ceiling and duct meet with silicon sealant. Let the sealant
dry, then paint with colors matched to the surrounds.
7.Place your hood upside-down on the floor, with the fan and filter facing upward. Locate and unscrew the metal electrical box cover on the island range
hood, to expose the wiring
8.Install the hood cover to the load-bearing ceiling frame with the package hardware through the four inside mounting corner flanges on the cover.
9.Measure what will be the distance from the bottom of your hood to the cooktop; it should not exceed 30 inches for exhaust efficiency. Have a helper hold
the hood in place while you attach the hood on the hood cover using the included screws. Use a level be sure the hood is level as mounted.
10.Connect the electrical wiring by consulting the manufacturer's suggestions or hire an electrician if you are not familiar with house wiring. Tuck the wires neatly in the hood electrical box and then replace the cover, after connecting the hood wires to the wall wiring.
11.Remove the electrical tape on the circuit breaker, turn on the electricity to your kitchen and test your island range hood.
8_9_2012_9_29_10_am.jpg

May 26, 2009 | KitchenAid KHVU781RSS Stainless Steel...

1 Answer

Went to a family dollar with a roof top unit and at the time could only check right above the drop ceiling, where there was a return and supply flex and a piece of square duct going through the roof and a...


sounds like a smoke detector to me. usually they just break the red or the green through a relay, if it smells smoke. could be dust burning off the heat strips first use, or you could get on the roof and find burned wires or motor. lots of old wires burning up with heat strips kicking in this time of year. i usually have em turn off alarm so fire dept wont come and turn to max heat and burn off the strips , measure amps, check wires, and all relays etc. you may have to bypass smoke detector till done. then return to correct "as found" wiring and reset alarms. hopefully no call backs. good luck.

Nov 21, 2008 | Heating & Cooling

1 Answer

Kenmore Elite bottom freezer suddenly stops making ice.


hi The thermostat control is usually mounted inside the refrigerator. Its visible control knob is turned to regulate the refrigerator/freezer temperature. The workability of this control can be tested in various ways, depending on the problem. To test the thermostat control:

Step 1:
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Step 2: 
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Step 3: 
If the refrigerator or freezer runs but the box doesn't cool, unplug the unit and remove the thermostat with a screwdriver. Disconnect both wires from the thermostat. Tape the ends of the wires together with electrical tape, and plug in the appliance. If the refrigerator starts and runs normally, the thermostat is faulty. Replace it with a new one of the same type. Connect the new thermostat the same way the old one was connected.

Step 4: 
If the freezer compartment is normal but the refrigerator box doesn't cool, set the dials that control both compartments to mid-range. Remove these knobs (they're usually friction-fit). Then unscrew the temperature control housing; you'll see an air duct near the control. Replace the knob on the freezer thermostat and turn the control to the OFF position. Open the refrigerator door and look closely at the air duct. If this duct doesn't open wider in about ten minutes, the control is faulty. Replace the control with a new one of the same type. Connect the new control the same way the old one was connected.

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1 Answer

Vulcan ducted heating not working


How many wires for the thermostat do you have? If you tell me I can help. The green flashing, instead of red, in my experience, means a thermostat problem.

Feb 24, 2008 | Heating & Cooling

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