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Posted by AKS on November 9, 2006, 7:00 pm
>
>>I am not that familiar with heat pumps
>>but will make this comments that it does not matter
>>if is in cooling mode or in heat mode
>>your suction should be within few PSI above freezing point
>>regardless what type of refrigerant system may use
>>look up pressure chart. naturally the head pressure will
>>vary with different refrigerants same as suction
>>check you diverting valve make sure is not bypassing
>>or leaking through, valve you mention that is
>>located between accumulator and compressor
>>is possible to be hot gas bypass, but 40 psi
>>do not make much sense
>>
>>Good luck from Dido
>
> Ever wonder why a heat pump has a defrost cycle Dido? Yes, that's
> correct, because in heat mode the condenser section can and often
> frosts up which impedes air flow across the coil. Whooda thunk that
> when you're pulling the heat from sub 50ºf. temps the coils might
> actually reach freezing temps.
>
So my guess was close enough that it is hot gas bypass
But? it should have been located before the accumulator
and not after.
Thank you for verifying Dido
> To answer the OPs question, he needs the minimum 8 temperature and
> pressure readings to diagnose the refrigerant charge over the
> internet. Or just use the charging chart like everyone else does.
>
> ...Ron
> --
> 68'RS Camaro
> 88'Formula
> 00'GT Mustang
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