Question about Dryers
I,m Putting in a new coffee machine at Church. The old circut has only two hot wires. 220volt. How do i install a L1430R receptical?
You may as well run a new 4 Wire cord from the panel to this receptacle as its a 3 pole 4 wire receptacle you will need to add 2 wires a Neutral and a Safety Ground wire anyway and you will most likely need to widen the hole that the existing 2 wires protrude from,anyway as old as these wires are they need changing out anyway
Posted on Dec 11, 2012
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Posted on Jan 02, 2017
the four wire plug seperates the neutral and ground. the three wire just piggybacks the ground to the neutral. so just get a three wire cord that fits the 220 plug on the generator and install it on your dryer make sure to attach the ground correctly for your three wire setup
Posted on May 07, 2008
The following link explains how to correctly install a power cord to the terminal block of a dryer:
Take note of the difference between a 4-wire and 3-wire configuration. The color codes for both installations are as follows:
RED - HOT (120 VAC)
BLACK - HOT (120 VAC)
WHITE - NEUTRAL (0 VAC)
GREEN - Ground
The main difference between the two configurations is how the Neutral wire and Ground wire is installed.
In a 3-wire configuration ground and neutral are connected together at the terminal block.
In a 4-wire configuration ground and neutral are INDEPENDENT of each other. Neutral is terminated at the terminal block, while ground is terminated on a ground lug on the equipment cabinet.
If you have any questions, please let me know. I hope you find this information helpful.
Posted on Aug 21, 2009
You can't really do that. The two 110 outlets probably come for the same 'leg' of the 240. If you check them with a meter, there will be '0' volts between the two hot wires. So, they have the same 'potential'. You need a regular 240 volt circuit from a double pole breaker that is rated for the wire size that it's feeding. 20 amp-#12 ; 30 amp- #10 etc.
Posted on Sep 01, 2009
The following link explains how to convert from a 3-wire to 4-wire configuration and vice versa:
The main difference between these two configurations is how the ground (green or bare copper) and neutral (white) wires are terminated. In a 4-wire confugration, the ground and neutral are independent of each other. In a 3-wire configuration the neutral wire will be grounded at the terminal block in back of the dryer by a ground strap.
Since you have an existing dryer outlet with a 3-prong configuration, the easiest solution would be to replace the dryer cord with a 3-prong cord to match your outlet. No need to rewire your house. A new cord can be purchased at an appliance parts retailer or hardware store for about $20 or less.
If you have questions about this repair, please let me know. I hope this helps you.
Posted on Sep 10, 2009
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