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cedkessler
Posts: 16
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 Posted: Wed Jun 25, 2008 9:37 am Post subject: HVAC and DHW |
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Hi, i've got few questions about the different parameters and settings for Hvac and DHW.
1) When using a split/multi-split system as HVAC system, onto the heating tab, Design builder ask for the SEER (SEER for a heat pump). Following all the researches i did, i've only found definition of SEER/EER for cooling. Even in the "Non domestic HVAC Guide" nothing is mentioned about SEER for heat pump. The only efficiency about heating is referred as COP, coefficient of performance which does not include calculation on seasonal efficiency. My question is, should i enter the simple COP or could you give me any details on how to calculate the SEER for a heat pump?
2) About DHW parameters. When defining a DHW system, onto the tab "general" when asked for storage and second circulation details, the value by default is "auto". My question is, if using "auto" how are these values calculated by Design builder (or SBEM maybe)? Does it calculate it in function of the volume of the room or/and occupancy/activities, etc...
Thank you for your help,
Regards,
Cedric |
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cedkessler
Posts: 16
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| Posted: Thu Jun 26, 2008 9:17 am Post subject: |
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| Could anybody help me please? |
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