Question about QMark LFK304 Fan Forced Wall Heater - Perfect for Offices

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Qmark 5813-2027-000 Dpdt Thermostat Schematic

My son took apart our forced wall heater and took the thermostat off the wiring plugs, but he can't remember which wire goes where and there is no schematic diagram on the inside of the wall heater to show how to wire it back. From the power source there is a red and black wire (with two posts for that on the thermostat), and from the fan unit itself there are three posts (two black wires and one red)

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3 Suggested Answers

appman67
  • 32 Answers

SOURCE: Problem wiring 240amp baseboard heaters

12 gauge wire sounds under sized for the application. And 20 amp 240 v breakers might be sufficient if you where wiring the heaters separately. But be sure that your wiring is not romex - because romex is an insulator and is not permitted in conduit. I would suggest that you up size your wire to 10 guage and your breaker to 30 amp as well. Then double check your heater wiring connections to insure that they're wired the same throughout.

Posted on May 03, 2009

panilling9
  • 284 Answers

SOURCE: I am trying to replace a electric baseboard heater

if you have a electric meter check the voltage coming out of the wall to be sure it is 220 v???? (meter across black and white)then with your meter only test black wire to ground and white wire to ground seperately you should have 110 from each wire to ground?
If you have only 110 to the black and no reading on the white, you either have a bad breaker or a 110v circuit
If you read 220v and you new heater is rated for 220v black to black and red to white wall thermostat or built in as long as you have 220v to your connection from the wall or your wall thermostat when turned higher than room temp.
Bare grounds tie together and mount to your green ground screw

Posted on Sep 25, 2009

  • 4736 Answers

SOURCE: where can i buy a thermostat for my heater fhu5-4b

Northern Tool sells ceiling mount Fahrenheat Heaters Try them, they may have it as an accessory or optional item.

Posted on Feb 10, 2011

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The heater runs constantly, the thermostat seems to work, I check continuity through it, it opens and closes. What else could cause not to shut off?


QMark MUH (0521) Compact Heater Wont shut off ... - Fixya

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Double check for a circuit breaker in the tripped or off position (or blown fuse). Reset and turn on (or replace fuse) as needed. If circuit breakers and fuses look OK - it may be a faulty heater, thermostat, connection, etc.and calling an electrician might be the best and safest solution.

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I need a replacement toggle switch for a chipper/shredder.The 1/12 hp motor experiences frequent slow downs, depending on what is being chopped. Sometimes it even stops momentarily, I presume causing...


My friend did a pretty good search for similar toggle

1) He found a 'wall-type' 30Amp DPDT at Global
2) He said he couldn't find others ... but the internet changes.
3) This switch could be mounted in a box that screws to side of chipper. Switch will work fine with 125V.
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Do i need a low voltage transfomer to hook up my


what kind of thermostat to you have, did you purchase the thermostat with the unit are you upgrading to a electronic thermostat, If you are using the mechanical thermostat that comes with the unit you will not need a thermostat. please see the link below and page 11
http://www.wfc-fc.com/pdf/Monterey_Top_Vent_IOM.pdf

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1 Answer

DPDT thermostat for Singer baseboard heater.


as close as I've found

http://keithspecialty.com/k/67-411.htm

http://www.heater-store.com/specialty-thermostats_91_ctg.htm




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Usually when you have the Y terminal on the thermostat (that would be cooling terminal), there should be 4 screws to connect to. They would be R- to transformer, W- to furnace or heat, Y- to outdoor air conditioner and G- to furnace blower.
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2 Answers

I am trying to replace a electric baseboard heater that is 220 volts and I am unsure about the wiring. the heater has a red and black wire and there is a white and black wire coming out of the wall.How do...


if ur are replacing the heater and it was originally 220/240 ur wiring should b ok but to b sure trace the line wire back to breaker panel and look at breaker the white and the black should b hooked up to separate breakers if the white is hooked up to a ground bar usually on the inside side of the panel and the black hooked up to breaker ur line is 110/120 and will cause problems when hooked up. if the lines r 220/240 than red can hook up to white and black to black

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