[Equest-users] Electric Baseboard Heat - Bug?
Jeremy Poling
jeremy.poling at att.net
Mon Dec 23 09:59:13 PST 2013
I noticed a number of users on the list indicating they had trouble using
Outdoor Reset for baseboard heat control. I am currently looking into a
building that has electric baseboards on (100% or nothing, no thermostatic
control) when OAT < 50F and off when OAT >= 50F. Also, if a compressor
runs the baseboard is locked out.
Thermostatic control was underestimating the use of the baseboards, so I
set it to Outdoor Reset with a schedule that turned the baseboards on at
100% from -20F to 70F. Upon doing so, no electric heat outside of the
reheat coils in the RTUs showed up on the electric meter. I then setup an
hourly report for a few of the RTUs, just to check (there's 16, I setup
4). For each RTU, I asked for Temp of air leaving heat coil - hot deck
temp (deg F), Total central heat coil output (Btu/hr), and Total baseboard
heat coil output (Btu/hr). As expected, the same value shows up for each
hour that OAT <50F for the total baseboard heat coil output.
Regardless of which report I look at, it appears that with Outdoor Reset
enabled there is no way to get the baseboard heat to show up on the meter,
even though it is actually showing a load.
CSV and screen capture attached for backup purposes. Can anyone think of
something I am missing?
Jeremy R. Poling, PE, LEED AP+BDC
Sustainability Consultant
Telephone: 414-375-9240
Skype: jeremy.r.poling
email: jeremy.poling at att.net
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