[Equest-users] VRF in eQuest

[Otto Schwieterman]

I believe that the best way to model a VRF system in eQUEST is to create an air to air heat pump system. You can create custom performance curves so the model does not penalize you as much when the temperature decreases. You will not be utilizing VRFs energy sharing capabilities but you should be close depending on the building's diversity.

 

Good luck,

 

Otto

 

From: Lopez, Phylroy [mailto:Phylroy.Lopez at stantec.com] 
Sent: Monday, May 10, 2010 12:21 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] VRF in eQuest

 

Has anybody done a VRF system in eQuest? Or know of any resources that would detail how to do this? 

 

I want to make sure I am not rebuilding the wheel here. 

 

 

 

Phylroy Lopez B.Eng LEED A.P.
Sustainable Building Specialist
Stantec

1100 - 111 Dunsmuir Street
Vancouver BC V6B 6A3
Ph: (604) 696-8337
Fx: (604) 696-8100

stantec.com <http://www.stantec.com>  

 

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From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Rob Hudson
Sent: Thursday, May 06, 2010 1:16 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Reheat/preheat/heating help

 

I have a constant volume VAV system with a preheat coil, no heating coil, and reheat box at the terminal.  The preheat is steam and the reheat is hot water.  I am looking for verification on the way i set this up in the model.  I set the heating capacity to 0 on the system level and entered in a preheat coil under the preheat/baseboard tab.  Also under the preheat tab, i entered my capacity and leaving air temp (50deg).  On the coil cap/control tab i have entered my zone entering max supply temp = 87 deg, thats the temp i want the reheats to go up to.  Then under each separate VAV zone, i entered the reheat capacity under the Maximum Heating Rate.  

Let me know if i confused anyone or need to send pictures or files.

-- 
Rob Hudson


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