[Bldg-sim] Queary

[sambhav tiwari]

Hi All,
           I am doing one building located in kochi  when i checked
the ashrae it says that  add 10F approach to WBT  and compare it with
85F  and which ever is lower take it as  condenser water entering
temperature.

But there is no direct input available for condenser water entering
temperature input available are for WBT and approach suppose my WBT is
78F and i take 10F approach as mentioned in ashrae  then my condenser
water temperature becomes 88F which is greater than 85F but i have to
take condenser water temperature as 85F only, because 88>85 as per
ashrae.Then my  doubt  is that i have to options to make condenser
water temperature 85 F

1: i should keep the WBT as it is same value ie 78F and reduce the
approach from 10F to 7F such that my condenser water temperature
becomes 78+7=85F or

2: i should keep the approach same as 10F and change the WBT from 78
to 75 such that my condenser water temperature becomes 75+10=85F

which way should i go .

Thanks
Sambhav