[Equest-users] Switch-over system

[Omid Manouchehri]

Bill,
Thank you for your email. i guess I should've explained a bit better. So the system is not two pipe, there is a CHW and HW loop. However at the zonal level (unit ventilator at some zone and VAV with active chilled beams at others) the system is switchover. The cooling is done through a ASHP and same ASHP does heating too as well as boiler back up.

I do have the SNAP on with the outdoor air set temperature for both cooling and heating loops. The heating does seem to stop in summer (above the SNAP temp). However the cooling appears to be year round!

Regards,

Omid Manouchehri
LEED AP BD+C
Energy Services Manager

Kane Consulting Partnership
1353B Pemberton Avenue
North Vancouver, BC V7P 2R6
O: 604.982.2585
C: 778.882.5204
E: omid at kane-consulting.ca

On 2012-12-19, at 12:49 PM, "Bishop, Bill" <bbishop at pathfinder-ea.com> wrote:

> Omid,
>  
> You can create a two-pipe loop and have it alternate between heating and cooling mode using SNAP or SCHEDULED for LOOP-OPERATION.
>  
> Regards,
> Bill
>  
> <image001.jpg>
>  
> From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Omid Manouchehri
> Sent: Wednesday, December 19, 2012 2:58 PM
> To: equest-users at lists.onebuilding.org
> Subject: [Equest-users] Switch-over system
>  
> Hello group,
> I am wondering if anyone has had experience with a switchover system before. Mainly switching from heating to cooling or vice versa based on a specific outdoor air temperature.
>  
> Regards,
> 
> Omid Manouchehri
> LEED AP BD+C
> Energy Services Manager
>  
> Kane Consulting Partnership
> 1353B Pemberton Avenue
> North Vancouver, BC V7P 2R6
> O: 604.982.2585
> C: 778.882.5204
> E: omid at kane-consulting.ca
>  

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