[BLDG-SIM] Heat Pump Water Heater EIR Values

[Tupper, Kendra]

I am trying to model Heat Pump Water Heaters (HPWHs) in a hotel
application for heating domestic hot water.  I set my type to "Heat
Pump" and entered 0.25 for the EIR (a COP of 4).  Oddly, the COP appears
to be set at 1.0 regardless of what I enter for the EIR.

 

I have the max heat pump temperature set at the loop temperature, so it
shouldn't be kicking into electric resistance backup.  Any idea how to
remedy this?

 

If I change the type to "Electricity" and adjust my EIR according, then
I see a savings, but you lose the part load effects of having the HPWH
curves modeled.  

 

Thanks in advance!

 

Kendra

Kendra Tupper
LEED(r) AP
FLACK + KURTZ
405 Howard St. San Francisco, CA 94105
Direct          (415) 402-5840
Email   kendra.tupper at sf.fk.com <mailto:kendra.tupper at sf.fk.com%20> 

 


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