Question about Fahrenheat Ceiling-Mount Industrial Heater - 7500 Watt

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How do you connect 4 wire 240v cable to FUH ceiling heater

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Posted on Jan 02, 2017

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SOURCE: I have 2-240V (4.2V) basebaord heaters, Need Wiring Diagram

nothing wrong w/ 10/3 @ 20A. use the red and black and don't use the white. dosent matter which is which (blk and red).

Posted on Mar 22, 2009

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SOURCE: I have the Fahrenheat Model FUH 724 heater. The

1st you will belucky if you actually have 240 v, most
homes are usually 220v. In youyr case you need to start at the breaker panel.

This is an example:
You have a Double Pole Single Throw breaker. Black
Wire is hot and goes into one side of breaker,if you havea red wire that goes into the other have of the
breaker.

The white wire ties in the nuetral bar and the bare wire into the ground bus bar. At the unit you hook up the red and the black wire which will supply the 240
Volts, you could tie the white and the ground wires together into the grounding terminal

Posted on Jan 02, 2010

SOURCE: installing FUH cealing heater used 10-3 wire

If you use the white wire as a hot wire, you must identify the wire as being a hot wire at the breaker panel and the unit. The white
wire must be marked about 6 inches back from the terminal
connections with black paint or wrapped with black insulation tape.

It would be easier to use the red wire, since most electricians would identify it as being a hot wire

Posted on Jan 04, 2010

BarrettDenCo
  • 1772 Answers

SOURCE: hello I have a Fahrenheat Ceiling-Mount Industrial

Sorry to read about your problem, I hope this helps you out.

you will have to install a 30 amp breaker, and make sure the wire is rated for 40 amps, or 110% of 30 amps, you can wire direct to the heater if you wish.

I tried to help you. Please help me and Rate/Vote on my response. We take the time to answer your question's. take the time to rate us.Thanks and good luck

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Posted on Jan 03, 2011

  • 4736 Answers

SOURCE: Installed my second Fahrenheat FUH

Could be either. But, I suspect that wiring is getting hot enough to trip the breaker. Check all of your wiring to see if there is a hot spot or insulation melted.

Posted on Feb 05, 2011

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Installed my second Fahrenheat FUH 724 7500W heater in another garage. Installed same as previous heater that works perfectly. used 10 Gage wire and 40A 240V breaker (2-20A). Wiring is correct. Heater...


Could be either. But, I suspect that wiring is getting hot enough to trip the breaker. Check all of your wiring to see if there is a hot spot or insulation melted.

Feb 05, 2011 | Fahrenheat Ceiling-Mount Industrial Heater...

1 Answer

Wiring heater, vent, light with 12/2 and 12/3 from switch to unit. email: lfranklin5@charter.net


I wish we had more information to go on here.

1) You have 2 cables to to the Heat-Vent-Light
One cable is 12-3 and 1 cable is 12-3

2) That's where it's gets fuzzy.
What color wires are on HentVentLight?
Is power at the ceiling box or at the wall box?
What other wires are inside the wall box?
What kind of switch are you installing?

3) With that number of wires, it sounds like power is at ceiling box.
Power would arrive at ceiling box on one cable that has a Hot-black and Neutral-white wire.

4) Start at wall box:
Let's suppose you are installing a wall device that has 3 individual switches, with one switch for each HentVentLight.
The Hot wire from ceiling box would drop down into wall box on a black wire, and this wire connects to brass screw on switch.
Wire going to heater connects to one of the silver screws.
Wire to fan to another silver screw
Wire to light to another silver screw.

5) Work at ceiling box:
Let's suppose your HentVentLight has 4 wires: Black for light, Red for fan, Blue for heater, and White Neutral.
The white neutral connects to Neutral wire as described in #3.
Black, Red and Blue connect to each of the wires that come up from switch.

Add a comment for more free help, and fill in the missing information.

Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

Feb 01, 2011 | Broan-NuTone FAN CONTROL SWITCH

1 Answer

Hello I have a Fahrenheat Ceiling-Mount Industrial Heater 240v rated. Can I use a 220 plug to wire it and connect it to my 220 aux plug in my garage? If so how should I wire it to the heater itself?


Sorry to read about your problem, I hope this helps you out.

you will have to install a 30 amp breaker, and make sure the wire is rated for 40 amps, or 110% of 30 amps, you can wire direct to the heater if you wish.

I tried to help you. Please help me and Rate/Vote on my response. We take the time to answer your question's. take the time to rate us.Thanks and good luck

4 Thumbs - Very Helpful
3 Thumbs - Helpful

Jan 03, 2011 | Fahrenheat Ceiling-Mount Industrial Heater...

1 Answer

I have a Et 70115C Intermatic Timer, I want to install it on my Hot Water Heater, I have connected the 2 110V leads from my breaker to Terminals 1 & 2 and connected the two leads from the hot water...


A) 5 terminal ET70115C.
Voltage selector set to 240.

B) BUT you say you have 120Volts from breaker >>> confusing, so I'm proceeding on basis that you meant to say 240V from breaker.
Add a comment at any time.

C) Review timer:
5-terminal ET70115 timer has NO and NC terminals
NC is normally closed >> this terminal has power when timer is OFF
NO is normally open >> this terminals has power when timer turns ON
For water heater, you want NO terminal 4 so water heater turns ON when timer turns ON

D) Wire for 240Volt water heater

Two hot wires from breaker connect to terminals 1 and 2. This powers timer clock.
Jumper wire connects between terminal 2 to terminal 3. This sends power to the switch circuit.
Wires to water heater connect to terminals 1 and 4

E) 5-terminal timer turns off 1 hot wire to 240V water heater.
Turning off 1 hot wire will stop 240V circuit from working; Water heater thermostats also turn off one hot wire.
240V water heater has black and red wire.
Wire from terminal 4 should connect to Black wire on water heater.

Diagram shows two wires on terminal 1
Two wires on terminal 2
One jumper wire on terminal 3
One wire on terminal 4
Zero wires on terminal 5


geno_3245_133.jpg

Dec 03, 2010 | Intermatic ET70115C Electronic Energy...

1 Answer

I have a farenheat fuh 54 b the fan turns slow until I tilt it towards the floor and then it spins fine. Checked for loose or broken wires and found none.


I would clean fan blades and motor housing. Blow out motor with compressed air if possible and check for oil ports on both ends of motor housing. If your motor has oil ports they may have plastic or aluminum plugs in them. If so remove themand put 3-4 drops of fine grade oil in. I hope this helps. Thanks

Dec 02, 2010 | Fahrenheat Ceiling-Mount Industrial Heater...

1 Answer

My EH40 is not supplying power to the water heater. I hooked the power line in to posts 1 and 2 and I hooked the load out to posts 4 and 6. When I use my power checker it reads no power to posts 3,4,5,...


I have an EH 40 sitting in front of me right now.
http://waterheatertimer.org/How-to-wire-EH40-hot-water-heater-timer.html
The link above shows correct 240V water heater timer wiring for EH40
Link below shows an overview picture of EH 40 connected to 240V water heater
http://waterheatertimer.org/images/EH40-water-heater-circuit-5.jpg
http://waterheatertimer.org/240-v-water-heater-circuit.html


EH40 has a 240V clock.
Terminals 1 and 2 send power to the 240V clock
Power to the clock terminals do not pass through timer to any other terminal

How to wire EH40 for 240V
240V line has 2 hot wires from breaker box.
Lets call these wires Hot1 and Hot2
These wire are interchangeable on 240V circuit
Hot1 connects to terminal 1 with a jumper to terminal 3 (or connect to 3 and jumper to 1)
Hot2 connects to terminal 2 with a jumper to terminal 5 (or connect to 5 and jumper to 2)

240V circuit has 2 wires going to the Load
Let's call these Load1 and Load2
These wires are interchangeable on 240V circuit
Load1 connects to terminal 4
Load2 connects to terminal 6

If the timer is still not working, go back to the breaker and test if it is delivering 240V to the circuit.
If breaker is bad on one leg, then the circuit can test with live power, but the 240V appliance will not work.
240V circuit requires both legs of 240V before circuit is complete.

Oct 24, 2010 | Intermatic EH40 - Electronic Water Heater...

1 Answer

I am installing a 240v heater in my downstairs bathroom. The heater schematic has a single BLACK 240v live input wire and a WHITE 240v neutral output wire, plus a yellow/green stripe ground wire. I have...


you dont need all that wht is 120vt blk is 120vt thats your 240 their is no neatral on 240 volt ont a 120 volt circuit it sounds like it is wired correctly you may have a wire not getting good conection

Sep 18, 2010 | Heating & Cooling

1 Answer

Hi, I just purchased a FUH-54B at Northern Tool and Equipment and installed it this evening. I have a 30 amp double pole breaker installed, and I have 120V at L1 and 120V at L2. The ground is properly...


It sounds like you have 120v from line 1 and line to to ground. What do you have between line 1 and line 2?
You should have 220 or 240v. If you dont have this
the problem is at the breaker. Are the wires going to the same breaker?

If you do have 220 or 240 between line 1 and line 2 at the unit, then it appears thr problem is at the unit,
probably the thermostat isn`t turned up high enough?

If it has a contactor, is it pulled in? If not then there is
a control problem. If you are skilled and confident you
could simply push the contactor in and it should
operate or have an electrician do it. Most of the time
you can bypass the thermostat and close the
contactor that way.

Jan 04, 2010 | Fahrenheat FUH5-4 Heater

1 Answer

I have the Fahrenheat Model FUH 724 heater. The manual states that it can be wired as a 240v 7500W unit but the directions and the unit itself only allow for three wires to be connected Black, White, and...


1st you will belucky if you actually have 240 v, most
homes are usually 220v. In youyr case you need to start at the breaker panel.

This is an example:
You have a Double Pole Single Throw breaker. Black
Wire is hot and goes into one side of breaker,if you havea red wire that goes into the other have of the
breaker.

The white wire ties in the nuetral bar and the bare wire into the ground bus bar. At the unit you hook up the red and the black wire which will supply the 240
Volts, you could tie the white and the ground wires together into the grounding terminal

Jan 01, 2010 | Fahrenheat Ceiling-Mount Industrial Heater...

2 Answers

Installing FUH cealing heater used 10-3 wire


If you use the white wire as a hot wire, you must identify the wire as being a hot wire at the breaker panel and the unit. The white
wire must be marked about 6 inches back from the terminal
connections with black paint or wrapped with black insulation tape.

It would be easier to use the red wire, since most electricians would identify it as being a hot wire

Jan 09, 2009 | Fahrenheat Ceiling-Mount Industrial Heater...

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