[Equest-users] How to turn off cooling for a water source heat pump

[Carol Gardner]

Travis,

People may have given you information, but I'm not seeing it on the
listserv. So here's something that might work. Open the Air-Side HVAC Zone
Parameters screen (double click on the zone not the system), click on
Cooling and set your Maximum Cooling Rate to a low number, e.g .01 or .001.
This will turn off your cooling energy use although you might see a cooling
capacity on your SV-A report. I used this for a PSZ system, I hope it works
for your WSHP system. Since it is a zone level command, it just might.

See below from online DOE2 help.

Let us know if this works.

Regards,
Carol

MAX-COOL-RATE

Design maximum net heat extraction rate of the air system for the zone. If
entered it will override program-calculated capacity based on design day
loads. MAX-COOL-RATE can be used to suppress the cooling capability of a
zone by entering very low value (e.g., 1.0). In this case the zone air flow
will be calculated on the basis of heating only, rather than on the larger
of the cooling and heating requirements. This value is defaulted from the
load calculation peak zone total sensible cooling value.



On Tue, Apr 20, 2010 at 1:21 PM, Travis Miller <tmiller at dcengineering.net>wrote:

>  Hello,
>
>
>
> I am using Equest to compare a couple of different systems for energy usage
> for a building that will be heating only. One of the systems is a water
> source heat pump connected to a boiler and a cooling tower. My question is
> what is the correct method of changing setpoints to eliminate the cooling
> load in the building? I have done it a couple of ways and get different
> results depending on what route it take. For example, changing the
> annual/week/day schedules to a high cooling setpoint, say 120°F does not
> eliminate the cooling load completely and actually raises the heating load
> for the building. Any ideas?
>
>
>
> I am a beginner at using this program and just found this forum. Any
> help/recommendations would be much appreciated.
>
>
>
>
>
> *Travis Miller**, PE***
>
> DC Engineering
>
> 123 W. Spruce St.
>
> Missoula, MT 59802
>
> P: (406)829-8828x209
>
> F: (406)829-8829
>
>
>
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