defrost termination switch.

[anthonyac1]

i was calling local suppliers to get a 2 wire defrost termination switch the kind that clips onto the copper not the one that has 2 screws and goes up against the sheet metal. having trouble finding one. went to one reputable supplier got back to the job and realized i was given a heater limit switch. to make sure i put it in ice and it would close then put it under warm water it will then open, so i returned and picked up this 3 wire one by supco in the pix. but to me it looks like a limit switch/ fan delay switch. the one in the pix. from my understanding and correct me if im wrong. the defrost termination must open on a temp decrease and close on a temp. rise to terminate the defrost cycle via x terminal..... any questions and answers welcome.

im thinking about using the fan delay part terminals #1 &#2 as termination in the switch shown in the pix. the one with the arrow is the one i have.

[Snapperhead]

Which ever 2 are closed at room temp are the defrost term wires. Red being common

The other 2 ... red and whatever ... will close when coil gets cold , 30 deg and under

[2sac]

Why not order the correct one?

[anthonyac1]

Why not order the correct one?

that would be nice but when i gave the model and serial numbers to my supervisor to order he said naw just go get a universal one, i gotta do what the boss says... that way if it doesnt work its my fault. but dont ask me how. hahahahaha

[anthonyac1]

Which ever 2 are closed at room temp are the defrost term wires. Red being common

The other 2 ... red and whatever ... will close when coil gets cold , 30 deg and under

i think they did a typo because it says red #1 common and #2 black goes to the fan, but then it states 1&2 open on temp fall that means my evap fans will shut off once it gets cold. lol hahahahaha

[KB Cool]

i think they did a typo because it says red #1 common and #2 black goes to the fan, but then it states 1&2 open on temp fall that means my evap fans will shut off once it gets cold. lol hahahahaha

Yeah, i would put that thing in the freezer and ohm it out!!! Unbelievable a company like Supco can't get it right!!!Stupid!!!!

[2sac]

Yeah, i would put that thing in the freezer and ohm it out!!! Unbelievable a company like Supco can't get it right!!!Stupid!!!!

Liquid CO2 is quicker

[KB Cool]

Liquid CO2 is quicker

Or 404!!!! Probally break the switch though!!!

[2sac]

Or 404!!!! Probally break the switch though!!!

De minimus

[anthonyac1]

Yeah, i would put that thing in the freezer and ohm it out!!! Unbelievable a company like Supco can't get it right!!!Stupid!!!!

im gonna install it tomorrow i put it in hot water and 1 & 2 red and black close. in my freezer red & black open so its red and black for defrost termination. the numbering is correct its just where they put =defrost, = fan switch is backwards. thanks for the replies

[crossthread]

Thats what happens when the copywriter comes to work hammered....

[KB Cool]

im gonna install it tomorrow i put it in hot water and 1 & 2 red and black close. in my freezer red & black open so its red and black for defrost termination. the numbering is correct its just where they put =defrost, = fan switch is backwards. thanks for the replies

Alright Cool!! Nothing's changed but the wrapper!!!