[TRNSYS-users] How to maintain Air Source Heat Pump outlet Temp with in Building (Type 56)

[David BRADLEY]

Sajid,

  That is quite normal and an indication that the heat pump is correctly 
sized. Normally HVAC equipment delivers air to a building at somewhere 
around 10C hotter or colder than the zone set point. If it delivered air 
at the setpoint temperature then the HVAC equipment would have to run 
continuously.

kind regards,

  David



On 04/03/2019 09:50, MEHMOOD Sajid via TRNSYS-users wrote:
> Hi Dear All,
>
> I modelled a simple two zone building in type 56. I used air source 
> heat pump (type 119a) to maintain a set point temperature in two zone. 
> But result shows a around 10 centigrade temperature  difference 
> between outlet temperature of air source heat pump (type 119a) and 
> zone air temperature (as shown in attached pic). I attached snapshot 
> of connection between building type 56 and air source heat pump type 
> 119a too.
>
> Please correct me about my mistake.
>
> many thanks.
>
> Best Regards,
> Sajid
> The University of Edinburgh is a charitable body, registered in 
> Scotland, with registration number SC005336.
>
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-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
3 North Pinckney Street - suite 202
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

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