2

Difference between Cycling PTAC and PTAC

I need notes (from NREL or any other authentic source) on the difference between CYCLING PTAC DX COOLING ELEC HTG and PTAC DX COOLING ELEC HTG.

tajjmann's avatar
455
tajjmann
asked 2015-06-09 15:29:59 -0500
__AmirRoth__'s avatar
4.4k
__AmirRoth__
updated 2015-06-11 09:04:40 -0500
edit flag offensive 0 remove flag close merge delete

Comments

add a comment see more comments

1 Answer

5

The cycling PTAC units in OpenStudio's HVAC library are configured with FanOnOff and will cycle the fan on and off with the coils. The non cycling PTAC units are configured with FanConstantVolume and will run the fan according the PTAC availability schedule even if the coils are inactive.

Kyle Benne's avatar
6k
Kyle Benne
answered 2015-06-10 09:24:07 -0500, updated 2015-06-10 09:30:13 -0500
edit flag offensive 0 remove flag delete link

Comments

@tajjmann: please mark the answer as accepted if you're satisfied so the post is flagged as resolved.

Julien Marrec's avatar Julien Marrec (2015-06-15 10:37:14 -0500) edit
add a comment see more comments