knighty
20-05-2022, 12:56 AM
Fridoblock FK24 on a 27ft freezer body, with extra evap inside
it's running off the truck on the floor hooked up to mains 3 phase
was delivered a week ago, has been on and running 2 days, was filled with frozen meat... which is starting to defrost
was only running the main evap - I don't normally use the 2nd evap, they don't defrost well when running as a freezer, I don't *think* the drain lines are heated?
air probes on main evap air supply/return show temp difference of around 1'C - could just be error in reading?
running the 2nd evap it has approx. 6'C temp difference
suction/liquid lines at 2nd evap showed 28psi/260psi
can't see an easy to access suction port at the compressor or main evap?
with only the main evap running the sight flash was flashing a lot
it got dark/cold/wet so I gave up, looking again tomorrow
it turned itself onto defrost, by time I walked around from inside (20sec? 30sec?) there was a steady steam of water from main evap defrost.... hadn't been time for ice to melt, so assuming it was trapped condensation?
can anyone give me an idea of what to look for?
I would guess a stuck/ or broken solenoid/coil - but if that was the case I'm surprised it ran at all and didn't trip off on the pressure controls?
it's running off the truck on the floor hooked up to mains 3 phase
was delivered a week ago, has been on and running 2 days, was filled with frozen meat... which is starting to defrost
was only running the main evap - I don't normally use the 2nd evap, they don't defrost well when running as a freezer, I don't *think* the drain lines are heated?
air probes on main evap air supply/return show temp difference of around 1'C - could just be error in reading?
running the 2nd evap it has approx. 6'C temp difference
suction/liquid lines at 2nd evap showed 28psi/260psi
can't see an easy to access suction port at the compressor or main evap?
with only the main evap running the sight flash was flashing a lot
it got dark/cold/wet so I gave up, looking again tomorrow
it turned itself onto defrost, by time I walked around from inside (20sec? 30sec?) there was a steady steam of water from main evap defrost.... hadn't been time for ice to melt, so assuming it was trapped condensation?
can anyone give me an idea of what to look for?
I would guess a stuck/ or broken solenoid/coil - but if that was the case I'm surprised it ran at all and didn't trip off on the pressure controls?