[Equest-users] insufficient heating capability

Chris Jones cj at enersave.ca
Mon Jul 25 04:51:42 PDT 2011


Did you try increasing the heating capacity of the central heating 
coil or is is self-sizing.  Are there under heated hours in the zones?

You note the warning is that the "system" may have insufficient 
heating capacity.  That doesn't sound like a zone problem so reheat 
delta-t and zone entering max supply T likely are not the 
problem.  Hot Deck Max Leaving Temp. only applies to dual duct or 
multi-zone systems (systems with 2 "decks"), not to single duct 
systems like VAVS.


At 03:13 AM 22/07/2011, DongEun Kim wrote:
>Hi eQuesters!
>
>Can anyone help me here?
>
>I installed main heating coil as well as reheat coil with delta T=30.
>
>Heating capacity and cfm is not defined so that they will be auto-sized.
>
>And, I keep having this warning saying that the system "might have 
>insufficient heating capability."
>
>I increased "Zone Entering Max Supply Temp", "Hot Deck Max Leaving 
>Temp."  But, the problem stays.
>
>
>How do I increase the heating capability?
>Thank you !!
>
>DE
>
>
>
>
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Chris Jones
14 Oneida Avenue
Toronto, ON M5J 2E3.
Tel.  416-203-7465
Fax. 416-946-1005





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