sparrow
13-08-2008, 08:16 PM
Hi I have Been trying to work something out in my head for a while but am unsure as to the correct action.
I was looking at an old Denco unit it had tripped out on the duel Johnson control low pressure due to a lack of R22 ref.
My question is this I put a set of gauges on but although some psig was present standing, I could not get the relay to reset, I did attempt to engage it,this ran the compressor for a fraction but as I let go it stopped and the relay popped again. Would I have had to Isolate the system take out the Refrigerant, take care of the leaks and then try and secure the relay with new virgin refrigerant in place. Would the Johnson control allow this or would some attention be needed to the low pressure control.
Regards
Sparrow
I was looking at an old Denco unit it had tripped out on the duel Johnson control low pressure due to a lack of R22 ref.
My question is this I put a set of gauges on but although some psig was present standing, I could not get the relay to reset, I did attempt to engage it,this ran the compressor for a fraction but as I let go it stopped and the relay popped again. Would I have had to Isolate the system take out the Refrigerant, take care of the leaks and then try and secure the relay with new virgin refrigerant in place. Would the Johnson control allow this or would some attention be needed to the low pressure control.
Regards
Sparrow