D
Dave M.
- Jan 1, 1970
- 0
A friend wants to install a 24000 BTU air conditioner in a VW repair shop
with around 1920's wiring. He doesn't want to tamper with the old service
panel.( I don't know what the service drop current rating is ). There are no
240 volt outlets in the shop. He wants to provide 240 volt power to the air
conditioner by plugging extension cords into two120 volt outlets from
opposite phases of the service and wiring them to a 240 volt outlet for the
air conditioner! He also wants to do this with his 240 volt, 6 hp
compressor, which will probably be connected to the same branch circuits and
that will surely blow fuses if both units are powered. From my experience,
the old 120 volt outlet and lighting branch circuits have badly
tarnished14AWG wiring, fused at 15 amps. He might buy a new 24000 BTU air
conditioner rated at 240 volts, 12.5 amps. That's probably about 80% of the
branch load rating. I cringe at the idea of using extension cords, because
the plugs and sockets might overheat. I hope he uses time delay fuses for
starting surge. He might be able to do it, at least for a while. I objected
to this fire hazard and offered to install "code" branch circuits, charging
for parts only, but he's not listening.
Dave M.
with around 1920's wiring. He doesn't want to tamper with the old service
panel.( I don't know what the service drop current rating is ). There are no
240 volt outlets in the shop. He wants to provide 240 volt power to the air
conditioner by plugging extension cords into two120 volt outlets from
opposite phases of the service and wiring them to a 240 volt outlet for the
air conditioner! He also wants to do this with his 240 volt, 6 hp
compressor, which will probably be connected to the same branch circuits and
that will surely blow fuses if both units are powered. From my experience,
the old 120 volt outlet and lighting branch circuits have badly
tarnished14AWG wiring, fused at 15 amps. He might buy a new 24000 BTU air
conditioner rated at 240 volts, 12.5 amps. That's probably about 80% of the
branch load rating. I cringe at the idea of using extension cords, because
the plugs and sockets might overheat. I hope he uses time delay fuses for
starting surge. He might be able to do it, at least for a while. I objected
to this fire hazard and offered to install "code" branch circuits, charging
for parts only, but he's not listening.
Dave M.