Hello All!
I am having an issue regarding a dedicated outside air unit that takes advantage of a condensing water loop.
When modeled as a water source heat pump (TYPE = HP), eQUEST gives me an error saying this system type is not eligible for "OA-FROM-SYSTEM".
One of my thoughts is to
* model all the units served by the outside air unit with no fresh air
* model the dummy zone with a summation of the fresh air required by the spaces served
But then that might interfere with a proper simulation of mixed air temps going into the space.
Thoughts?
***ERROR***********************************************************************
OSAU is not a legal SYSTEM-TYPE to be
an OA-FROM-SYSTEM. SZRH/PSZ/RHFS/MZS/PMZS/DDS/VAVS/PVAVS/PVVT
RHFS/IU/PIU/PTGSD/EVAP-COOL/RESYS2 are allowed.
Jesse Eisenhart
I guess I stumped everyone. :)
Jesse Eisenhart
Can you use PVVT, but configured as you would have setup the heat pump?
David
*
*
*David S. Eldridge, Jr.**, P**.**E**.**, LEED AP BD+C, BEMP, BEAP, HBDP*
* *
*From:* equest-users-bounces at lists.onebuilding.org [mailto:
equest-users-bounces at lists.onebuilding.org] *On Behalf Of *Jesse Eisenhart
*Sent:* Tuesday, April 03, 2012 3:21 PM
*To:* equest-users at lists.onebuilding.org
*Subject:* Re: [Equest-users] Water Source Heat Pumps as Dedicated Outside
Air Units
I guess I stumped everyone. J
Jesse Eisenhart
*From:* equest-users-bounces at lists.onebuilding.org [mailto:
equest-users-bounces at lists.onebuilding.org] *On Behalf Of *Jesse Eisenhart
*Sent:* Tuesday, April 03, 2012 11:07 AM
*To:* equest-users at lists.onebuilding.org
*Subject:* [Equest-users] Water Source Heat Pumps as Dedicated Outside Air
Units
Hello All!
I am having an issue regarding a dedicated outside air unit that takes
advantage of a condensing water loop.
When modeled as a water source heat pump (TYPE = HP), eQUEST gives me an
error saying this system type is not eligible for ?OA-FROM-SYSTEM?.
One of my thoughts is to
? model all the units served by the outside air unit with no fresh
air
? model the dummy zone with a summation of the fresh air required
by the spaces served
But then that might interfere with a proper simulation of mixed air temps
going into the space.
Thoughts?
***ERROR***********************************************************************
OSAU is not a legal SYSTEM-TYPE to
be
an OA-FROM-SYSTEM. SZRH/PSZ/RHFS/MZS/PMZS/DDS/VAVS/PVAVS/PVVT
RHFS/IU/PIU/PTGSD/EVAP-COOL/RESYS2 are allowed.
Jesse Eisenhart
You can model a water-to-air heat pump using PSZ, PVAVS and PVVT by specifying a CONDENSER-TYPE -> WATER-COOLED and attaching a CIRCULATION-LOOP of type CW or WLHP.
Best regards,
Bill
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