[Hap-users] HVAC System 5 (VAV) - No Cooling

[Khaled Fouda]

Hi Hap Users,

I am modeling a parking garage and some MEP spaces that are serving a church and retail areas so I am using system 5. The parking garage and the MEP spaces are only heated but per ASHRAE 90.1 Appendix G I have to model the spaces being cooled too; here what I did and I would like if I get some confirmation from some experts on this method;

1- Under System Components: I unchecked the Schedule (J-D) for the Central Cooling Data
2- Under Zone Components: I changed the Cooling T-setpoints to be so high (ex 90) to avoid any cooling.

Beside that; would you recommend lowering the "Supply Temp." for the Central Cooling Data to the lowest possible input (35)? It would make more sense to push it all the way up (Max would be 1F less than Cooling T-setpoint; 89F in my situation).

Any input would be highly appreciated.

Regards,
Khaled Fouda
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