[Equest-users] 4 Pipe FCU- Refrigerant lines (supply and return) instead of CHW lines

Julien Marrec julien.marrec at gmail.com
Tue Feb 2 23:51:43 PST 2016


Hi,

I think you can make do with a hot water PTAC, as long as you specify the performance of the DX cooling based on your outdoor+indoor unit for fan power.

Best,
Julien 

Envoyé de mon iPhone

> Le 2 févr. 2016 à 21:14, Jayant Patil <jppatil at gmail.com> a écrit :
> 
> 
> Hi,
> 
> I am looking to model a custom built up unit ventilator for classroom building. The UV in classroom is basically a 4 pipe FCU system. The HW is supplied by natural gas boiler. Instead of CHW water lines, an outdoor split system (air condenser)  is utilized to run the refrigerant (supply and return)lines to the UV.
> 
> In e-quest, if FC is used as system type, a CHW loop is required (which is not present in this case). Therefore, for a custom system like this, is it safe to model the air side system as "residential split unit" and HW loop for the heating side? Since the cooling is provided by a split system, I thought a RESYS2 system will be ok?
> 
> Has anybody encountered such type of system before to model in e -quest?
> 
> Thanks
> 
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