Underheating warning for bunch of zones

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Niko,

The basic problem in your model is that you do not call the hot water loop or the furnace. For the main coil to get active, you have to input a temperature setpoint (HEAT-SET-T) - see enclosed illustration (the values shown in the enclosed are for illustration purpose: adapt to your case). And for the reheat to come on, you have to also input a setpoint (see again enclosed illustration).

There are some other input problems we can discuss off-list.

[cid:image006.jpg at 01CCB005.C0AD9C30]Demba Ndiaye, Ph.D., P.E., LEED AP BD+C, BEMP

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Nikola,

I opened the model and you need to specify in the Air-side systems that are attached to the HW loop a design deck heating setpoint and a reheat delta-T setpoint. eQuest will not auto-input these items for you so, when it goes to size a system, it has nothing to base the calculations on.
[cid:image003.jpg at 01CCB03B.A483EC90]

The model runs now so, see if you can move forward from there and post more questions if you have em.

Cheers,

Neil Bulger

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Thanks Neil, yes your input coincide with rest of the feedback I received personally through the equest users group; indeed it was the Heating tab and the Heat/reheat set's that I've assumed if I leave black will be fine but they weren't.
I appreciate your feedback.

Best,
Nikola

Nikola Kravik, LEED AP

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