Quick Disconnect for 15 Ton Carrier Chiller, Please help ASAP
Quick Disconnect for 15 Ton Carrier Chiller, Please help ASAP
(OP)
We have a small 15 Ton water cooled chiller. We want to have an easy disconnect for the electric supply so that the chiller can be removed for servicing. The only thing I can think of is to have the electrical contractor splice a cord and plug to the terminal box of the chiller and install the apropriate NEMA receptacle in the wall of the room. Is this feasible? Are there any code issues with this? Or any other way to do it that will meet Code?





RE: Quick Disconnect for 15 Ton Carrier Chiller, Please help ASAP
RE: Quick Disconnect for 15 Ton Carrier Chiller, Please help ASAP
What voltage and amperage are you needing. As grobert suggested, there are manufacturers that make plugs and receptacles with UL switch ratings. These can be made and broken under full load. They do not cost much more than a standard plug and interlock mechanism.
RE: Quick Disconnect for 15 Ton Carrier Chiller, Please help ASAP
RE: Quick Disconnect for 15 Ton Carrier Chiller, Please help ASAP
RE: Quick Disconnect for 15 Ton Carrier Chiller, Please help ASAP
You may want to provide a disconnecting means for any controls with the unit. Depending on the application chillers may have heaters, solenoid valves etc. that get power from a differen source than the primary feeder.
RE: Quick Disconnect for 15 Ton Carrier Chiller, Please help ASAP
http://www.meltric.com
I'm pretty sure the Meltric devices are also available with pilot contacts so that control circuits can be disconnected with the power.
RE: Quick Disconnect for 15 Ton Carrier Chiller, Please help ASAP
Crouse-Hinds' 'Arktites' and their Appleton equivalents in the past were always packed with data on acceptable loadbreak ratings, and seem to have on the order of a century’s worth of a track record.
"IEC 309 Series 2" connectors are made by several outfits.
RE: Quick Disconnect for 15 Ton Carrier Chiller, Please help ASAP
you want a lockable disconnect close to the equipment with control volage interlock with the contactor, to prevent disconnecting by the switch under load.
If you pull a plug under load, you'll really create a mess and possibly hurt someone or two, or three...
RE: Quick Disconnect for 15 Ton Carrier Chiller, Please help ASAP
interlocks are not needed with all brands. Some are rated to be disconnects and plugs/receptacles in one device.
Your statements are true for typical pin and sleeve devices.
RE: Quick Disconnect for 15 Ton Carrier Chiller, Please help ASAP
RE: Quick Disconnect for 15 Ton Carrier Chiller, Please help ASAP
The disconnect makes everyone feel safe before they unplug.
As well do you have a general purpose 15A receptacle located nearby for service? I hate running long extension cord to service equipment.And a water tap nearby also helps a great deal for sprayers and the like.
stuff like this cuts down on outside maintanence costs and speeds service.
RE: Quick Disconnect for 15 Ton Carrier Chiller, Please help ASAP