Posted: 8/9/2011 5:47:40 AM EDT
| Aside from the size/ higher BTU rating is there any advantage to a 220/240V unit vs a 110/120 unit? |
|
Quoted:
Quoted:
Aside from the size/ higher BTU rating is there any advantage to a 220/240V unit vs a 110/120 unit? They don't have to pull as many amps for the same work. But you have to have a special power line run to the unit. Yes but they use twice as many volts so it is the same in the end. The Kw-hr amount is the same. |
|
Quoted: Quoted: Quoted: Aside from the size/ higher BTU rating is there any advantage to a 220/240V unit vs a 110/120 unit? They don't have to pull as many amps for the same work. But you have to have a special power line run to the unit. Yes but they use twice as many volts so it is the same in the end. The Kw-hr amount is the same. I understand that. |
|
Quoted:
Aside from the size/ higher BTU rating is there any advantage to a 220/240V unit vs a 110/120 unit? If you want a unit with heating, then 220/240V. I have 120V 12000 BTU. 10 amp draw. Works well for 500 square feet. I looked at 220V and it had 5 amp draw for 18000 BTU. |
|
Quoted:
Aside from the size/ higher BTU rating is there any advantage to a 220/240V unit vs a 110/120 unit? The larger models tend to start easier on 220/240 volts. If you have wiring that's a little undersized or have low AC supply voltage, the fact that a 220/240 volt model will draw half as much current can make a difference in getting the compressor started. The downside is that you can't easily move a 220/240V unit to another window, unless you have 220/240V wall outlets near every window. Also, not all generators produce 220/240V - a consideration if you ever want to power a window unit with a generator during an extended power outage. |
|
Quoted: Savings is in reduced surges when starting up the compressor. Your electric bill is based on how many amp hours you use, plus peaks (surges) like when you weld or fire up compressors. By going to 220, you typically reduce the peak demands. We only measure demand on larger commercial customers. Other utilities might be different, but none I am aware of. |