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I need to obtain a typical manual pilot natural gas hanging shop heater wiring diagram. it is a totally 110 volt wiring configuration and has been wired for direct non-stop operation and i would like to install a line voltage thermostat to control the heater, but would like to verify that all safeties are in the configuration when i am through. there are a couple of visibility issues to the wiring so i need some help if possible. thanks

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  • fatman98 Jan 09, 2009

    I ASKED FOR A DIAGRAM.

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Put a 120v Thermostat in series with the power switch. No need to alter the unit.
Hope this helps.
Matt

Posted on Jan 07, 2009

  • Matt McElhenny
    Matt McElhenny Jan 09, 2009

    Why is this rated inappropriate?

    Put a line voltage thermostat in the line voltage going to the unit.

  • Matt McElhenny
    Matt McElhenny Jan 10, 2009

    Contact the manufacturer and perhaps they can mail you a diagram. This is a chat board. I can't produce a diagram with this format. Good luck.

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Where can i obtain a wiring diagram


A one phase 3 wire system has a center tap. Two hots and a neutral. Typical 120/240 volts.
A three phase 4 wire system has Three hots in a Y or Delta. The Y system has three hots and the neutral comes from the center of the Y, this is the neutral and grounded conductor, 120 volts from hot to ground and 208 volts hot to hot. In a 3 phase system the voltage is not doubled hot to hot as in a single phase system because the hots are 120 degrees phased from each other and the square root of 3 is the factor, multiply the 120 volts by 1.73 to get 208 volts hot to hot. Multiply 208 by the reciprocal of 1.73 and get 120 volts. Your exact application is not given so it is not known. A delta system is a triangle and the angle of each triangle is a hot wire, one angle would be grounded or the center tap of one of the sides of the triangle. Y is the configuration of the windings of the alternator or transformer and Delta is the configuration as a triangle of the windings of the alternator or transformer where the power supply is.

With a three phase home service, you can only connect two hots from your single phase generator, and the neutral. One of the house's hot does not get connected and any three phase loads in the house should be switched off and kept from energyzing or a circuit breaker or fuse serving that 3 phase load may trip.
Only one power supply can be connected at a time. The power company power must not be connected at all while using an alternate power supply unless your power supply has means to synchronize the alternating cycle.

It is adviced that the loads be kept within 10% of their rated voltage, especially motors.

May 04, 2015 | Air Conditioners

1 Answer

Bought a used coleman 15,000 btu with heat pump.The wiring harness came seperately and I don,t see a place on the unit to wire it in. The wire diagram shows 24volt control but there is no transformer in...


You'll need the ceiling assembly and control box to operate it properly, or at the very least a ceiling assembly with mechanical controls. The ceiling assembly is where you will run your 110 volt, and depending on what set-up you choose, the wiring etc, relays and transformers will be determined by that. I assume you didn't get the ceiling assembly with it? Here's a link to wiring diagrams etc and service manuals to help you understand what and where to go with it. Model number should be on it, just go to proper info pertaining to your model.

http://www.rvcomfort.com/rvp/tech_info/manuals.php

Jun 12, 2011 | Coleman Mach III Air Conditioner

1 Answer

I replaced the gasvalve and thermalpile in my 35,BTU wall heater I light the pilot and turn the heat on it goes out I ran a new state wire in case of a short but it still does it, did I get a bad...


Did you get the right gas valve for a thermapile and not a 24 volt gas valve? Also I would recheck my wiring.... Here is a article that may be of HELP....... Hope this Helps.....
Thermocouple: A thermocouple is a device made of two different metals which creates a small electrical charge when heated at one end.
Thermopile: A thermopile is a probe that contains multiple thermocouples, therefore it can produce a larger electrical current. Millivolts: 1/1000 of a volt - thermocouples and thermopiles typically produce from 25 to 600 millivolts of power.
Piezio - a spark producing device often used to ignite gas pilots and burners.
Gas Valves Types:
A. Single Thermocouple Only - Used on some gas logs
B. Valves with Thermocouples and Thermopiles - Used on most hearth appliances and gas logs with switches or remote controls or thermostats.
C. ODS Systems - Used on Mostly Vent-Free. Available in manual control or thermostat/remote/switch (combination) valves.
valvepict.jpg
Typical Gas Valve A. Thermocouple-Only
Found in: Most gas log sets with standard safety pilot knob control. Also found in certain gas space heaters and construction-site portable heaters.
Explanation: This type of gas valve used a single thermocouple. A thermocouple is a device made of two different metals which creates a small electrical charge when heated at one end by the gas pilot. This small charge causes an electromagnet inside the gas valve to open and allow gas to flow to the main burners. Since the thermocouple must be heated before the burner will start, gas appliances often have a startup mode, during which a knob must be depressed and held for 30 seconds or so after lighting the pilot. At the end of the 30 seconds, the pilot should be generating enough electricity for the valve to operate correctly. At this time, the startup knob can be released and the valve turned to an "on" position for appliance operation.
pilotclose.gif Troubleshooting:
Most problems with this type of valve are due to thermocouple problems. Check the following:
1. Connection from the thermocouple to the valve. Clean the threads of the connecting nut with a pencil eraser and re-tighten.
2. Pilot hood and flame direction. The pilot should engulf the top 5/8" of the thermocouple with a decent flame. If the flame hits the thermocouple too low, this can cause the appliance to go out or not generate enough millivolts for valve operation. The pilot hood and orifice should also be clean from soot which could slow or block the pilot flame.
3. Pilot pressure. Many of these valves have an adjustment screw to adjust the pilot flame. A pilot that is too short may allow the pilot to stay lit after ignition, but may not create enough charge to allow the burners to ignite.
4. Overheating: If the unit works for a few hours and then shuts down, it's possible the thermocouple has become overheated. Repositioning of the gas valve and/or pilot may be needed to avoid this problem.
Problems with LP units can also be due to a tank that is nearly empty or a bad regulator at the tank.
B. Thermocouple & Thermopile valve
gas1.gif Found in: Most modern VENTED gas stoves, fireplaces and fireplace inserts as well as vented gas log sets with thermostat or remote control.
This valve is similar to the thermocouple only valve, however has a pilot which heats up BOTH a thermocouple and a thermopile. The thermocouple still acts to prove that the pilot flame is on and allows this flame to continue after startup. The thermopile is used to power a second circuit which is used to open the main valve. This second circuit is powerful enough (300-600 millivolts) to allow the use of a thermostat, wall switch or control switch to operate the main valve. Control of the valve is obtained simply by hooking a pair of wires to two terminals located on the valve.
Startup is similar to the thermocouple-only valve. A piezo spark ignition is used to ignite the pilot after the gas knob is turned to the "pilot" position and depressed. Once the pilot is lit, the knob is held in for 30 seconds to "prove" the heat and then released and turned from the "pilot" to the "on" position. The main burner will then respond to the switch, thermostat or remote control.
Troubleshooting
Since there is both a thermocouple and thermopile in this valve type, it is important to isolate where the potential problem may be. If the pilot can be lit and stays on after the knob is released, then the problem is probably with the thermopile side of the valve. Here are the most common problems and solutions.
1. Pilot does not light or stay lit after knob is released - Make certain that the Piezo igniter works by checking for a spark between the igniter tip and the pilot hood. If there is no spark, the piezo may be bad or the piezo wire might be shorting to the appliance chassis. It is also possible that the igniter tip needs to be bent slightly toward the pilot hood so the spark jumps to it.
Check carefully that gas to appliance is on and that the valve is in he correct (pilot) position and fully depressed when lighting.
If pilot ignites but does not stay lit after knob is released, then the problem is with the thermocouple not generating enough voltage to the valve. It may be that the pilot adjustment needs to be turned up, or the thermocouple replaced. Another possibility is that the thermocouple may not be being "bathed" fully by the pilot flame. Check your owners manual for a diagram and description of the proper pilot flame and hood adjustment. It is also possible that there is soot or other blockage in the pilot tube, orifice or hood which is reducing the size of the pilot (and also the voltage of the thermocouple).
2. Pilot stays lit, but appliance will not turn on - There are two common causes for this. It is possible that the thermopile is not producing enough millivolts to power the control circuit. The millivolts can be checked with a simple voltmeter (consult the owners manual for proper setting) and adjusted with the pilot adjustment screw. Improper millivolts will also cause the appliance to shut down in the middle of operation.
Another common problem is loose or poor connections or circuits to your appliance switch, thermostat or remote transceiver. This can be isolated by simply using a small piece of wire to jump the "TP" and "TH" terminals located on these valves. If the appliance turns on when these terminals are jumped, then you can be sure that your problem is not in the appliance itself, but further down the switch circuit. Make certain you have used the suggested gauge of wire and that the length for your control runs does not exceed the specs given in your manual.
3. Other possible problems - include wind or back drafts affecting the pilot flame and checking of "spillage" circuits which may be wired into the valve in most B-Vent units.
If all the above checks out, and your valve is still acting weird (i.e., works some of the time), then you may have a defective gas valve in the appliance. Problems with LP units can also be due to a tank that is nearly empty or a bad regulator at the tank.
C. ODS System
Found in: Unvented (Ventless, Vent free) gas logs, fireplaces and stoves. These systems are available in manual or remote control.
ods.gif ODS stands for "Oxygen Depletion Sensor" , a term which accurately describes this valve type. The valve itself is similar in many ways to the two valve types above...with one exception. The pilot tube is a precision mechanism that creates a very stable flame as long as the room air contains the proper amount of oxygen. If the oxygen level in the room air drops even slightly, the pilot becomes unstable and lifts off of the thermocouple (see diagram) causing the gas valve and appliance to cease operation. This type of valve is very reliable, and there have been very few failures of this system - even with tens of millions in use worldwide.

Mar 02, 2011 | Air Conditioners

1 Answer

The heater is attached to the propane tank properly; however, when I try to light the heater, the push valve does not allow the gas to pass to the heater to be lit. I do have all of the valves open on the...


Typically there is a safety device directly above the pilot light that must be up to temp for the gas to flow. You did not specify if the pilot is lit. If not, hold the lighter at the pilot light while depressing the button for one minute. This allows the sensor to warm to operating temp, thus allowing gas flow. Once pilot is lit adjust the temperature accordingly.

Feb 19, 2011 | Air Conditioners

1 Answer

The fire wont light no pilot but have a spark could it be micro switch?


Check and make sure you have gas into the unit. Check for voltaged at the gas valve 24 volts or 110 volts across. terminals on gas valve.

Jan 30, 2011 | Air Conditioners

1 Answer

I have ventless natural gas heater , u can lit the pilot , but when u let up off the button the pilot goes out . have replaced thermocouple the same problem pilot will not stay lit. have also used air...


When you light the pilot, hold the button in about 1 minute to satisfy the thermocouple. Once the thermocouple is hot and satisfied, turn the gas to "ON". You may have to extend the time a bit, but 1 minute is usually enough.

Best regards, --W/D--

Jan 20, 2011 | Air Conditioners

1 Answer

The WeatherKing Forced air heater stopped working in my house. The thermostat could turn it on in terms of sound but when I looked at the heater, all I saw is the pilot light. No air, hot or cold, was...


You will need to relite the pilot if this is a standing pilot furnace........If this has an electronic lite for the pilot then cycle power to the furnace and set thermostat to heat. and retry sequence. Once you get the pilot to lite then watch it to see if the main gas comes on. if it doesn't then you need to check and see if you are getting 24 volts to the gas valve with a volt meter. If you don't feel comfortable with doing this then you will have done everything that is simple. You will have to call a service tech. Problems that it could be are gas valve, limits not closed, ignition control board, main limit open because the blowor motor locked up or motor has open winding or run capacitor open.

Jan 02, 2011 | Weather King Air Conditioners

1 Answer

I have a whirlpool natural gas hot water heater model number fg1f4034t3nov. no hot water pilot will not lite and can not find any parts when seaching by model number.


is it a standing pilot? or Spark ing. model? if standing pilot you will need to replace the Thermocouple if spark you will need to replace the spark box

May 11, 2008 | Air Conditioners

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