US 2021/0199338 A9 · ECONOMIZER PERIMETER GAP SEALING

Abstract

A method for sealing an economizer perimeter gap to reduce an uncontrolled excess outdoor airflow by applying a sealing material over or into the economizer perimeter gap between the economizer frame and a Heating, Ventilating, Air Conditioning (HVAC) system cabinet comprising: locating the economizer perimeter gap between the economizer frame and the HVAC system cabinet and applying a sealing material over or into the economizer perimeter gap. The sealing material is selected from the group consisting of: an adhesive tape sealant, an adhesive sealant, a mastic sealant, a caulking material, and a weatherstripping. The method comprises: disconnecting an electrical power to the HVAC system, removing an economizer hood, locating and cleaning the metal services on both sides of the gap between the economizer frame and the HVAC cabinet, applying the sealing material over or into the gap, reinstalling the economizer hood, and reconnecting the electrical power to the HVAC system.

Claims11

Dependent claims

A method for sealing an economizer perimeter gap, the method comprising:

locating the economizer perimeter gap between the economizer frame and the HVAC system cabinet;
and
applying a sealing material over or into the economizer perimeter gap between the economizer frame and the HVAC system cabinet.

A Fault Detection Diagnostic (FDD) calibration method of sealing an economizer perimeter gap of an economizer, the method comprising:

sealing the economizer perimeter gap between an economizer frame and a Heating, Ventilating, Air Conditioning (HVAC) system cabinet to reduce an uncontrolled excess outdoor airflow through the economizer perimeter gap between the economizer frame and the HVAC system cabinet, the sealing comprising:
applying a sealing material over or into the economizer perimeter gap between the economizer frame and the HVAC system cabinet, wherein the sealing material is selected from the group consisting of:
an adhesive tape sealant, an adhesive sealant, a mastic sealant, a caulking, and a weatherstripping.

Dependencies are inferred from the claim text.

Facts

Application

16/882,222Filed 22 May 2020

Priority

31 May 2016

Published

1 Jul 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

F24F 11/0001
Control or safety arrangements: for ventilation
F24F 13/30
Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening: arrangement or mounting of…
F24F 11/30
Control or safety arrangements: for purposes related to the operation of the system, e.g. for safety or monitoring
F24F 11/38
Responding to malfunctions or emergencies: failure diagnosis

Family

Application15/169,586Continuation in part · filed 31 May 2016

Application15/358,131Continuation in part · filed 22 Nov 2016

Application15/614,600Continuation in part · filed 5 Jun 2017

Application16/011,120Continuation in part · filed 18 Jun 2018

Application62/728,518Us provisional application · filed 7 Sep 2018

Application16/289,313Continuation in part · filed 28 Feb 2019

Application16/565,464Continuation in part · filed 9 Sep 2019

Application16/869,396Continuation in part · filed 7 May 2020

Application16/882,222Continuation in part

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