LOL. I know the next question may sound stupid, however it does have some basis. What about, if the compressor is NOT a reciprocating type, to have no check valve and so as a defrost mode its let to be freewheeled backwards by the pressure difference, releasing it this way. One of your recent window unit vids showed that releasing the pressure difference quickly defrosts the suction line / evap coil. I actually observed that freewheeling method on a train.
@DragonFlyback256 In theory that should work if the compressor can run without valves. I think even ina rotary compressor its reliant on the discharge reed valve stopping too much pressure flowing back and around the rotor as it goes into its compression stage.
interesting idea tho, some day I may find a way to test it. ( machining the bottom off a rotary and mig welding it back on after removing the valve.)
What will blocking airflow and freezing the evaporation coil do to the pressure on the condensing coil inside the building? will the pressures get very high or stay around the same?
I assume that any blockage of free heat transfer either on the evap or condensing side increases the pressure difference thus making the compressor work harder.
@twirlywirly555 yeah it results in liquid getting into the compressor and slugging it out. or at the very least diluting the oil and accelerating wear on the moving parts.
the comp is a radial 4 cylinder one, but Mitsubishi make great recip comps so it may live for years on.
That wall kill it pore thing (:
Hv1245 1 year ago
@Hv1245 yeh they don't use it anymore
Aussie50 1 year ago
That wall kill it pore thing (:
Hv1245 1 year ago
If it ever does it again you should go to the thermostat, disconnect the blower fan from it, then set it to run in cool!
airconguy1 1 year ago
talk about christmas in july! get a compressed air gun and its an instant snow machine!
cheetawolf 1 year ago
hey look, it's frosty the condenser
theclockman1 1 year ago
Complete airway blockage. Plus ice dilatation may damage the unit mechanically.
DragonFlyback256 1 year ago
@DragonFlyback256 apparently its done this for years, last year it iced up so bad you couldn't tell it was a condensing unit.
Aussie50 1 year ago
@Aussie50
LOL. I know the next question may sound stupid, however it does have some basis. What about, if the compressor is NOT a reciprocating type, to have no check valve and so as a defrost mode its let to be freewheeled backwards by the pressure difference, releasing it this way. One of your recent window unit vids showed that releasing the pressure difference quickly defrosts the suction line / evap coil. I actually observed that freewheeling method on a train.
DragonFlyback256 1 year ago
@DragonFlyback256 In theory that should work if the compressor can run without valves. I think even ina rotary compressor its reliant on the discharge reed valve stopping too much pressure flowing back and around the rotor as it goes into its compression stage.
interesting idea tho, some day I may find a way to test it. ( machining the bottom off a rotary and mig welding it back on after removing the valve.)
Aussie50 1 year ago
What will blocking airflow and freezing the evaporation coil do to the pressure on the condensing coil inside the building? will the pressures get very high or stay around the same?
Jasons1487 1 year ago
@Jasons1487 I'm not really sure what it does to pressures although I imagine the evap pressure would be pretty high.
Aussie50 1 year ago
@Aussie50
I assume that any blockage of free heat transfer either on the evap or condensing side increases the pressure difference thus making the compressor work harder.
DragonFlyback256 1 year ago
Very nasty! Poor condensing unit!
mattyvt93 1 year ago
nasty.
V8Jagnut 1 year ago
when our window one gets frosted I turn it off right away, compressor doesn't like it
HDXFH 1 year ago
Wow , ALot of ice , Does it kill/damage the AC units when that happens if let to run ?
twirlywirly555 1 year ago
@twirlywirly555 yeah it results in liquid getting into the compressor and slugging it out. or at the very least diluting the oil and accelerating wear on the moving parts.
the comp is a radial 4 cylinder one, but Mitsubishi make great recip comps so it may live for years on.
Aussie50 1 year ago
why dont you offer to fix it for them:)
itscool1968 1 year ago
@itscool1968 I did but they already have a appointed service agent so I missed out on that one.
Aussie50 1 year ago
never seen one that bad! our old weather wall use to do it but not to the point where you couldn't see a inch of light through it!
Jaytheozzi 1 year ago