Help with circuit

[FrogBite]

I´m building myself a chiller and have a problem with a fan which should cool the compressor. I want to connect the fan to a 240V socket but have no clue how to go about doing this.

These are the specifications of the fan:

230 volts
50 hz
14 amps
20 watts

I´m in Europe so we have 240V from the socket. Does anyone know how much current the electricity has?

[NotSoCoolJ]

First. Let me introduce my self. As my handle implies I'm not very cool. I will soon rectify that with a nice chiller made from an ugly uncool window AC.
Second. Current, in your application makes no difference. The fan will only draw as much current as it needs to do its job. In your case, that would be 14amps surge/0.0833 amps running. If you have any concern, it would be, whether this fan will trip your breaker or whether you might kill yourself/burn down your house installing it.
Third. I am not personally informed on the standard breaker amps in Europe. I can tell you that my 220v connections in my home USA are rated to pop at 35amps.
Last. It is safe to say that you should consult a licensed electrician near you to wire the fan. Better safe than sorry. In this case the sorry could leave you dead.

[teyber]

First. Let me introduce my self. As my handle implies I'm not very cool. I will soon rectify that with a nice chiller made from an ugly uncool window AC.
Second. Current, in your application makes no difference. The fan will only draw as much current as it needs to do its job. In your case, that would be 14amps surge/0.0833 amps running. If you have any concern, it would be, whether this fan will trip your breaker or whether you might kill yourself/burn down your house installing it.
Third. I am not personally informed on the standard breaker amps in Europe. I can tell you that my 220v connections in my home USA are rated to pop at 35amps.
Last. It is safe to say that you should consult a licensed electrician near you to wire the fan. Better safe than sorry. In this case the sorry could leave you dead.

wow! a new member who knows rule #1! :welcome:

Improper wiring will burn down every possession you have in your home. a not-correctly made connection will have to much resistance. remember e=ir where e= electromotive force(emf/ voltage). if you have too much resistance, this will cause a snowballing effect until you have a fire.

Work safe!

reed

[KaptCrunch]

depends what the socket wiring size is, check fuse panel for that circuit, as NotSoCoolJ & Teyber stated do not OVER LOAD CIRCUIT rating of the fuse panel.
14a fan + compressor 20a = 24amps, if fuse for that circuit is 20amps then your in the fire zone. this means you need to change larger wire gauge on that outlet from fuse panel an do not exceed panel rating if change circuit to 30amps breaker/fuse.

call a licensed electrician to protect against loss of life/fire, the insurance company won't cover your losses if not done correct

[NotSoCoolJ]

Thank you for the welcome Teyber. I come from a long line of industrial electricians, tool and die makers, and power plant instrument men. I have never personally been hit by line voltage. I have been told that every electrician gets hit at least once. I wish to be the exception to the rule. My worst hit ever was from a high voltage ignition coil (MSD blaster) in my camaro. At around 55,000 volts, it is enough to ruin your day. Good thing it was low amperage DC. It wont kill you but you instantly know that you never want to face the wrong end of a police taser. When it comes to line voltage, if you have to ask, you had better not fool with it. That is Rule #1. Rule #2 for me, is use the non-contact line checker to make damned sure you never touch anything that is still hot. On the job site, sometimes the greenies get impatient and start flipping on breakers before your done and checked in. You bet I have heard that beeper going off and I'll tell you. You DON'T want to be the guy that threw that breaker. I haven't been hit yet, thank god. Since the first time someone did it to me, I always lock the breaker box with my own lock. If there is no box and just some silly jerry rigged arrangement, I refuse to work on it.

[KaptCrunch]

Thank you for the welcome Teyber. I come from a long line if industrial electricians, tool and die makers, and power plant instrument men. I have never personally been hit by line voltage. I have been told that every electrician gets hit at least once. I wish to be the exception to the rule. My worst hit ever was from a high voltage ignition coil (MSD blaster) in my camaro. At around 55,000 volts, it is enough to ruin your day. Good thing it was low amperage DC. It wont kill you but you instantly know that you never want to face the wrong end of a police taser. When it comes to line voltage, if you have to ask, you had better not fool with it. That is Rule #1. Rule #2 for me, is use the non-contact line checker to make damned sure you never touch anything that is still hot. On the job site, sometimes the greenies get impatient and start flipping on breakers before your done and checked in. You bet I have heard that beeper going off and I'll tell you. You DON'T want to be the guy that threw that breaker. I haven't been hit yet, thank god. Since the first time someone did it to me, I always lock the breaker box with my own lock. If there is no box and just some silly jerry rigged arrangement, I refuse to work on it.

yes very good pratice NotSoCoolJ, your own lock out :up:

I use the 1 hand rule standing on a dry wood in the unknown area of disconnect. after 3ph 550vac is no fun for is the grabbing type of voltage
:eek: < me trying to let go of relay
went home for the rest of day that day an seen life flash by me

[leuler]

yes very good pratice NotSoCoolJ, your own lock out :up:

I use the 1 hand rule standing on a dry wood in the unknown area of disconnect. after 3ph 550vac is no fun for is the grabbing type of voltage
:eek: < me trying to let go of relay
went home for the rest of day that day an seen life flash by me

:shocked: You were very lucky that life didn't flash by you for real.

Thank you for the welcome Teyber. I come from a long line of industrial electricians, tool and die makers, and power plant instrument men. I have never personally been hit by line voltage. I have been told that every electrician gets hit at least once. I wish to be the exception to the rule. My worst hit ever was from a high voltage ignition coil (MSD blaster) in my camaro. At around 55,000 volts, it is enough to ruin your day. Good thing it was low amperage DC. It wont kill you but you instantly know that you never want to face the wrong end of a police taser. When it comes to line voltage, if you have to ask, you had better not fool with it. That is Rule #1. Rule #2 for me, is use the non-contact line checker to make damned sure you never touch anything that is still hot. On the job site, sometimes the greenies get impatient and start flipping on breakers before your done and checked in. You bet I have heard that beeper going off and I'll tell you. You DON'T want to be the guy that threw that breaker. I haven't been hit yet, thank god. Since the first time someone did it to me, I always lock the breaker box with my own lock. If there is no box and just some silly jerry rigged arrangement, I refuse to work on it.

I also come from a long line of electricians, mostly residential. Safer, as far
as the voltage goes, but still enough to kill a person ( a few milliamps thru
the heart is all it takes ).

I wish that I also was an exception to the rule, but I've been shocked
plenty of times just dealing with other people's messes. :shakes:

By the way, I'm not certain that the fan FrogBite mentioned has an inrush
current of 14 amps. That seems high for something that has a running
load of 20 watts ( .083 amps ). Could be the locked rotor rating, but even
that seems high.

[NotSoCoolJ]

I know it seems strange to me too. But that is what he posted. I don't have the fan to tell him otherwise. Maybe thats full melt down amps? Like the thing is on fire and it's drawing 14 amps. :shrug: Maybe this is a small fan and it was 1.4amps. We will never know unless he tells us. He said it was for cooling the compressor. Maybe he means the whole condenser pack or maybe he means it's a 140mm or so fan he is wanting to actually cool the compressor with. Either way my answer would still be call the electrician.

[FrogBite]

It has the by me mentioned details on the back of the motor.

I also didn´t understand the details, from P=VI, the current should be 0.087amps. I just wondered if anyone knew how much current the motor actually draws and why it says 14.

[Xeon th MG Pony]

It has the by me mentioned details on the back of the motor.

I also didn´t understand the details, from P=VI, the current should be 0.087amps. I just wondered if anyone knew how much current the motor actually draws and why it says 14.

I'd say return the fan and buy a properly labled one! Never have I seen such seriously conficting information!

I was born and raised in heavy industry my self, I've seen plenty but never such numbers!

[FrogBite]

I asked an electrician and he said it was alright to connect it to the main supplies. When I connected it though, it turns in the wrong direction; it sucks air instead of blowing it. Somehow changing the polarity doesn´t do anything but that doesn´t matter, at least it works.

[[XC] Hicks121]

I can tell you that my 220v connections in my home USA are rated to pop at 35amps.


Rated to pop @ 35amps? Are you sure about that?? :)

[Sam__]

I asked an electrician and he said it was alright to connect it to the main supplies. When I connected it though, it turns in the wrong direction; it sucks air instead of blowing it. Somehow changing the polarity doesn´t do anything but that doesn´t matter, at least it works.

Its AC so essentially there is no polarity as the current is going forward and back, oscillating.

[KaptCrunch]

When I connected it though, it turns in the wrong direction; it sucks air instead of blowing it. Somehow changing the polarity doesn´t do anything but that doesn´t matter, at least it works.

you should take a clear picture of fan, so we can determine whats going on.

some AC motors have rotation jumper or change 2 wire around to change direction

[NotSoCoolJ]

Hicks121;3056794']Rated to pop @ 35amps? Are you sure about that?? :)

Yes, I put it there.
My hot water heater is on a 20 amp breaker.
My oven is on a 30 amp breaker.
My dryer is on a 60 amp breaker.
My AC is on a 35 amp breaker.
My main is 200amps.
Are you sure that everyone else's should be just like yours? :rofl: