Question about Heating & Cooling
I am a commercial energy assessor and I have a heating/cooling system made by Fuji Denki. I need to find the EER and COP values for the system, can you help please? The model numbers are ROC-257R (outdoor) and RC257R (indoor). Many thanks
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Posted on Jan 02, 2017
SOURCE: Match up Carrier equipment
carrier did sell some systems with R407c as a quick fix to gov regulations for about 2 yrs. R407c is a blend . and is treated like R410a except R407c pressures are more simular to R22. being that the pressures run the same the system should work with out changing any parts that being said if the evaporator has been used for R22 the oil residue wiil give you problems ifit is a new unit you would be ok.
Posted on Jan 10, 2009
These units have circuit boards inside that have lights on them. These lights come on and tell you what the problem is. I have had 4 units do the same thing that yours is doing. The result has been that the compressor has gone bad. You have to get access to the control board to see the lights. There will either be one inside the inside unit or one inside the outside unit depending on exact manufacturer date.
Good luck and hope this helps.
Posted on Aug 23, 2009
Sounds like an interconnecting wiring error. Check wiring connection i.e. wires are connected in right order 1 to1 2 to 2 etc. from indoor terminal board to outdoor terminal board. Also check for slack or loose connections.
Hope this helps I take the time to answer your question so please rate me
Posted on Jun 28, 2010
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