[Equest-users] Errors when modeling a Loop-to-Loop Heat Pump

[Sharad Kumar via Equest-users]

Hi Fallon,

One can have a tree at the project name in the water side tab and then have
a right click.
The required ground source heat exchanger is as follows:

[image: Inline image 1]

[image: Inline image 2]


In this way one can attach the ground source heat water exchanger to the
lake/well loop.

*Thanks,*
Sharad.


---------- Forwarded message ----------
From: fallon walters via Equest-users <equest-users at lists.onebuilding.org>
To: "equest-users at lists.onebuilding.org" <equest-users at lists.onebuilding.org
>
Cc:
Date: Wed, 7 Dec 2016 14:05:40 +0000
Subject: [Equest-users] Errors when modeling a Loop-to-Loop Heat Pump

Hi everyone,



I am trying to model a Series Fan-Powered VAV with HW Reheat through a
Water to Water Heat Pump System.  We have 4 water to water heat pumps from
a lake/well loop.  The heat pumps are serving 3 air handling units and then
a VAV system serving the rooms.



When modeling this design I have a I am using both chilled water and hot
water coils.  When modeling a chiller in the Wizard Mode, it does not let
me model type as Heat Pump or Loop-to-Loop Heat Pump.  I then change the
type in the Detailed Mode to a Loop-to-Loop Heat Pump, using a default
Chilled Water Loop, default Hot Water Loop, and a Lake/Well Condensing
Loop.   I keep coming up with several different errors.  My main error is
that my condenser Loop (lake/well) does not have a primary heating source.
I have read online that a ground source heat exchanger need to be attached
but I do not know how to add this heat exchanger and attach it to this
loop.



Am I modeling this correctly?



Thanks, Fallon

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