discounted existing replacement equipment cost Suboptimal Y Replace Replace Discounted Suboptimal Code future or Original? replacement cost Suboptimal Y Replace Repair Discounted Suboptimal Original repairs over or Original Efficiency EUL of efficiency? installed equip Suboptimal Y Repair to Repair to Orig Zero full ?? No Savings maintenance?? – efficiency Orig eff. eff. cost is incremental Suboptimal Y Repair to Repair to Orig Zero full ?? No Savings maintenance?? – efficiency > original eff. cost is efficiency incremental
discounted replacement cost existing equipment Suboptimal Y Replace Replace Discounted future replacement cost Suboptimal or Original? Code Suboptimal Y Replace Repair Discounted repairs over EUL of installed equip Suboptimal or Original efficiency? Original Efficiency Suboptimal efficiency Y Repair to Orig eff. Repair to Orig eff. Zero – full cost is incremental ?? No Savings maintenance?? Suboptimal efficiency Y Repair to > original efficiency Repair to Orig eff. Zero – full cost is incremental ?? No Savings maintenance??
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