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Re: [TRNSYS-users] Type56 problem



Dragos,

I expect your issue may be that the supply air temperature is equal to the heating set point. The HVAC system will need to supply warmer air to the space to offset the heat loss through the walls. A supply air temperature of about 30 C is common for heat pump or condensing furnace systems, though lower temperatures may be possible with a very well insulated house.
You may also choose to keep the ventilation system neutral and heat the space directly, for example with a radiant floor system.

Ben Heymer, PE

On Wed, Jun 8, 2016 at 7:25 AM, Dragos Bogatu via TRNSYS-users <trnsys-users@lists.onebuilding.org> wrote:
Hello,

My name is Dragos Bogatu and I am using Trnsys17 for my Bachelor Thesis and I am having a problem with the house I built (Type56). I installed my HVAC system and even though the air enters the house at around 20 degrees C, the temperature inside the house is very low (around 14 degrees in winter). The house is highly insulated so the temperature should be higher. Am I doing something wrong? (I read that type56 has a problem with higly insulated walls). My HVAC system is formed from an earth to air heat exchanger and a heat recovery unit.

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