Wiring diagram for Dayton IKRT9 portable electric heater

You can wire any heater with elements to single phase because all heaters are single phase. It will require a larger feed because your amp draw is going to go up doing away with the third leg. You split the heaters up from 3 phase to 2 legs amp draw is going to go up 30 percent or so.

you don't need a wiring diagram for 3ph. this motor is single phase. either 120 or 240v. you just need to fing out what power you will power it with and read the inside cover for the wiring box on the motor. given to you by an electrician w/35 yrs experience.

A 3 phase motor will not work on a single phase supply so I'm sorry but a wiring diagram will not help you.

220 - 240 volt, 60 hertz, properly grounded circuit with 40 amp breaker or fuse protection with #8 gauge wire. For Electric Heaters.

in or on the heater there should be terminals labelled R, W1, W2 if its a 2 stage and G for fan only operation hook up any color of wires as long as the W on the stat is hooked up with W on the heater and so forth but for heat only operation utilize the R and W terminals only.

here's a link to the install guide
www.air-n-water.com/manuals/G73.pdf

http://en.allexperts.com/q/Electrical-Wiring-Home-1734/Installation-Dayton-G73-Garage.htm

this is tricky to some you must connect heater to the load side of thermostat must will have a black set and a red set wires look at the directions to find the line side which you hook wires from panel to them I will tell you some switches are different so with out seeing the schmatics its hard to tell you email me a picof thomastat and i can tell you hope this helps

you get 120V from any phase (black OR red) to neutral
you get 240V from phase to phase (between black and red) and in this scenario you don't need the white wire.
So for you, connect the black to 1 pole of the breaker and the red to the other pole, connect the green wire to the ground strip and you are done.
A white wire is NEVER connected to a circuit breaker anyway, it is a grounded wire, it would be like connecting a green wire to a black wire, bad idea.
the National electrical code specifies red and black wire color for 240VAC circuits.
As Ask Hank mentionned, nothing wrong with 10/3 wire.

if you will google the make and model number you should find a pdf owners/ service manual

If I understand your post correctly....You state that you are hooking up a 240v heater and towards the end you speak of removing jumpers...W2 terminals..ect. It sounds to me your trying to us a 24v low voltage thermostat instead of a Line voltage thermostat.That's what I'd take a look at.