08902071 is referenced by 20 patents and cites 343 patents.

An HVAC controller may be programmed to monitor a current delta T of an HVAC system and to determine a performance level of the HVAC system based, at least in part, on one or more delta T limits stored in the memory of the HVAC controller. The HVAC controller may be further programmed to display or provide a user alert if the performance level falls outside of a normal operating range for the HVAC system.

Title
HVAC controller with HVAC system fault detection
Application Number
13/325525
Publication Number
8902071 (B2)
Application Date
December 14, 2011
Publication Date
December 2, 2014
Inventor
Mohammad Aljabari
Brooklyn Park
MN, US
David Schultz
Savage
MN, US
Eric Barton
Eden Prairie
MN, US
Agent
Seager Tufte & Wickhem
Assignee
Honeywell International
NJ, US
IPC
F24F 11/053
F24F 11/00
F24F 12/00
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