all reefer container problems/daikin/carrier/thermoking/mitsubishi

[IRMechanik]

Feom what I can see there. Is the hot gas defrost discharge line always running to the evaporators and then is controlled by solenoids inside the evaps? Does this mean even if pumped down there would be gas in that line?

Yes, there would be gas in that line. If you pump down and equalize at the compressor the condenser inlet check valve should hold the charge but I wouldn't trust it. For all the time it takes I would pull the charge. It should be 404a but depending on age it could be 502. As far as mechanically opening the valves, a magnet on each liquid line solenoid should do it. I like the three point, it pulls a better and faster vacuum. If you have an extra port on your pump, hook the receiver directly to your vacuum pump. If there still is shraders on compressor I'd yank them too, with service valves they are redundant.

[anthonyv]

Yes, there would be gas in that line. If you pump down and equalize at the compressor the condenser inlet check valve should hold the charge but I wouldn't trust it. For all the time it takes I would pull the charge. It should be 404a but depending on age it could be 502. As far as mechanically opening the valves, a magnet on each liquid line solenoid should do it. I like the three point, it pulls a better and faster vacuum. If you have an extra port on your pump, hook the receiver directly to your vacuum pump. If there still is shraders on compressor I'd yank them too, with service valves they are redundant.

Thanks for your help. There is no way I'd put that muh trust in a check valve that's for sure. Another stupid question. Is there anywhere in particular I should reclaim from?

[IRMechanik]

Thanks for your help. There is no way I'd put that muh trust in a check valve that's for sure. Another stupid question. Is there anywhere in particular I should reclaim from?

No stupid questions. If the unit is running pump out from the receiver into your recovery tank, you'll probably get at least half the charge or most of the liquid, more if you cover the condenser. Then recover the remaining liquid from the receiver after that switch to your compressor connections.

[anthonyv]

No stupid questions. If the unit is running pump out from the receiver into your recovery tank, you'll probably get at least half the charge or most of the liquid, more if you cover the condenser. Then recover the remaining liquid from the receiver after that switch to your compressor connections.

Thanks for your help.

So if I reclaim the unit where do I need the solenoid magnets?
Then
Once I've done that I can extend the pipes and vac it out and recharge it

Will extending the cables effect the thermostat probe?

[IRMechanik]

Thanks for your help.

So if I reclaim the unit where do I need the solenoid magnets?
Then
Once I've done that I can extend the pipes and vac it out and recharge it

Will extending the cables effect the thermostat probe?

Extending the cables shouldn't affect the probe.
Mechanically open the hot gas or liquid line but not the suction line.