[Equest-users] Thoughts on EnerryPro Software

[Christopher Zabaneh]

Hi Chris - In short, EnergyPro v5 does VRF really well for CA Title 24 and for 90.1/LEED

Just follow the structure from the tutorial files. You have to make sure that if an evaporator servers two spaces with different occupancies then you have to split it into two zones and divvy the evaporator proportionately (currently their VRF can only do one occupancy per zone). I've found the LEED modules also helpful. Yes Paul is right in that Mitsubishi helped provide the calcs. You cannot, however, differentiate between a two-pipe or three pipe system (not sure how much it matters for our purposes)

If working on EnergyPro v4 you have to download a special patch created with Daikin. It was great before EP5 but I've found this patched v4 to be a bit buggy (and it messes with your regular non VRF calcs - so you have to reinstall to work on regular projects). If in CA, the patched v4 VRF version is not recognized for Title 24, but if you're outside CA you won't have that problem.

Keep in mind that EnergyPro v5 still has an issue with Exception G3.1.1(a) for non-predominant conditions over 20,000 SF - so keep that in mind. It's a known issue and is being worked on last time I checked.

FYI - VRF is the industry term - VRV is the same thing but for a specific manufacturer - think the word 'kleenex' (VRV) w.r.t tissues (VRF)


Christopher Zabaneh, LEED AP BD+C

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From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Chris Mullinax
Sent: Friday, September 10, 2010 6:40 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Thoughts on EnerryPro Software

Hi,

I'm a mechanical engineer working on a LEED project where we are contemplating using a VRV/VRF system. I've seen several discussions about equest and VRV/VRF; I know several people are working on this for equest. Due to the pace of the project, and  lack of time, I've purchased EnergyPro software which models VRV/VRF right out of the box.

I have several questions and would appreciate your thoughts.

1)      Does anyone have experience with EnergyPro? If so, do you find it more or less flexible than eQuest?

2)      Are there any advantages of EnergyPro over eQuest?

3)      Are there any shortcomings of EnergyPro over eQuest?

4)      Any other general thoughts or observations about energyPro.

Chris D. Mullinax, P.E., LEED AP, CEM

Mullinax Solutions, Inc.
pn: 770-387-1334
fx: 770-387-1383
www.mullinaxsolutions.com

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