Question about Heaters

1 Answer

Wiring a Dayton Greenhouse Thermostat to control an exhaust fan

Previous greenhouse owner left me with a Dayton Thermostat.  It has three screws where wires can be attached. I read that wires are attached to 2 of the 3 screws depending on whether the thermostat is controlling a heating or cooling device.  I am confused because only 2 wires will be leaving the thermostat. I am use to devices that have 2 white wires & 2 black wires leaving the device.  My guess is that the 2 wires leaving the thermostat are connected to either the white wire or the black wire of the line to open & break the circuit.  The directions on the thermostat itself are written for an electrician & I don't understand them.  For example, on the thermostat itself it says "opens red to blue on increase" ?

Posted by on

1 Answer

AAAA

Posted on Mar 26, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

What does R G W1 W2 mean?


Those are thermostat wiring designations. R (usually the red wire) is the power supply (24v). G (usually green) controls the fan. W1 is the first stage of heating, W2 is the second stage.

Apr 09, 2014 | Dayton (4LX63) Gas Heater

Tip

How a thermostat works


Normal 0 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";} THERMOSTAT
The thermostat's main job is to allow the engine to heat up quickly, and then to keep the engine at a constant temperature. It does this by regulating the amount of water that goes through the radiator. At low temperatures, the outlet to the radiator is completely blocked -- all of the coolant is recirculated back through the engine.
Once the temperature of the coolant rises to between 180 and 195 F (82 - 91 C), the thermostat starts to open, allowing fluid to flow through the radiator. By the time the coolant reaches 200 to 218 F (93 - 103 C), the thermostat is open all the way.
If you ever have the chance to test one, a thermostat is an amazing thing to watch because what it does seems impossible. You can put one in a pot of boiling water on the stove. As it heats up, its valve opens about an inch, apparently by magic! If you'd like to try this yourself, go to a car parts store and buy one for a couple of bucks.
The secret of the thermostat lies in the small cylinder located on the engine-side of the device. This cylinder is filled with a wax that begins to melt at around 180 F (different thermostats open at different temperatures, but 180 F is a common one). A rod connected to the valve presses into this wax. When the wax melts, it expands significantly, pushing the rod out of the cylinder and opening the valve. If you have read How Thermometers Work and done the experiment with the bottle and the straw, you have seen this process in action -- the wax just expands a good bit more because it is changing from a solid to a liquid in addition to expanding from the heat.
This same technique is used in automatic openers for greenhouse vents and skylights. In these devices, the wax melts at a lower temperature.
Fan Cooling fan
­L­ike the thermostat, the cooling fan has to be controlled so that it allows the engine to maintain a constant temperature.
Front-wheel drive cars have electric fans because the engine is usually mounted transversely, meaning the output of the engine points toward the side of the car. The fans are controlled either with a thermostatic switch or by the engine computer, and they turn on when the temperature of the coolant goes above a set point. They turn back off when the temperature drops below that point.
Rear-wheel drive cars with longitudinal engines usually have engine-driven cooling fans. These fans have a thermostatically controlled viscous clutch. This clutch is positioned at the hub of the fan, in the airflow coming through the radiator. This special viscous clutch is much like the viscous coupling sometimes found in all-wheel drive cars.

on Apr 26, 2010 | Heaters

1 Answer

Dayton3e368a pilot lights but burners do not come on. Heat rod was replaced last year. Heater is in a greenhouse


Most heaters has a pilot proving sensor of one type or another, it will be in direct contact with the pilot flame to prove that the pilot is lit and then will allow for the main gas to the burners to open. If the proving device has failed then it needs replaced.

Oct 12, 2011 | Dayton Gas Furnace Heater

1 Answer

Have a dayton 3F405D propane greenhouse heater don't know where to light the pilot light.


Find where the gas line connects to the gas valve on the back of the heater, from the gas valve, follow a small aluminum tube going into the back of the heater. There may be a removable door to access the pilot assembly. If there is no aluminum tube, the unit has electronic ignition and no pilot lite. Turn the gas knob to off, then to pilot. Hold the gas valve in and with a long match or gas grill lighter, light the pilot. Continue to hold the knob in for about 30 seconds. After that, release the knob and check to make sure the pilot stays lit. If so, rotate the knob to ON. The thermostat will kick the burners on.

Mar 30, 2011 | Dayton (3E405) Gas Radiator Heater

1 Answer

Just bought a Dayton electric heater to heat a 12' X 20' greenhouse in October. When the heater comes on it now makes a loud sound as if the fan is hitting something. I have it mounted horizonally near...


If it sounds like the fan is hitting something, It is likely you will have to get a step ladder, and look closely at what is making the noise-
Likely something fell in there-- and needs to be removed.

When you shut the thermostat down, does the fan stop instantly?

Mack B

Dec 28, 2010 | Dayton Electric Heater

1 Answer

Greenhouse Heater pilot light will not stay lit


replace the thermocouple. it is a small copper tube that screws into the gas valve and goes to the pilot assembly. a good haedware store that sells heaters will have one. they come in various lengths 18"-48".

Nov 30, 2009 | Heaters

1 Answer

Can the G73 be hooked up to an wall thermostat and allow it to over ride the unit thermostat? I want to install this is in a greenhouse and would like to have the thermostat on the wall down lower and not...


Yes, but it will require some knowledge of electric to do that. You will need a line voltage thermostat and mostly like have to have that run a contactor that will be wired to bypass the heater thermostat. A good electrician should be able to to this for you very easily.

Nov 09, 2009 | Dayton G73 Utility Heater

1 Answer

Fan continues to run after heating


That's the fan switch. It's a thermostat that controls the fan coming on and off, it's probably failed and needs to be replaced. You can see it if you take the front off the furnace, the wires come off it and go to the fan motor.

Jul 13, 2009 | Dayton Gas Furnace Heater

1 Answer

Turning on a radiant heater


whoo tall order! well, since that unit uses a piezo crystal spark gap that's half the battle. go to the grainger site and find a 24 volt electrically operated solenoid for gas use. anything else won't do. next go to the white rodges web site and find a spark igniter with a flame rod flame detector 24 volt. you'll also need at least a 500va 120/24 volt transformer. a standard honeywell stat will do. I'm thinking the unit uses a millivolt generator to keep the gas valve open. you could substitute a mercury button cell to energize the pilot valve and keep the valve open. give me your email addy and I'll see if I can draw up a diagram for you.

Dec 13, 2007 | Heaters

Not finding what you are looking for?
Heaters Logo

Related Topics:

1,251 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heaters Experts

paulcarew

Level 3 Expert

1904 Answers

Dan Webster
Dan Webster

Level 3 Expert

8147 Answers

Mack Baxter

Level 3 Expert

379 Answers

Are you a Heater Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...