Condensate trap on a condensing gas-fired furnace
First Claim
1. A condensate trap for a condensing pulsating combustion gas-fired furnace comprising a housing having an inlet adapted to be connected to a condensing heat exchanger, an outlet for flue gas and an outlet for condensate, said housing having a chamber therein, an opening defined in the chamber, a float valve in the chamber adapted to close the opening, and a drain orifice in the outlet for condensate forming a dam to prevent negative pressure from undesirably dislodging the float valve from the opening, said housing being comprised of two portions detachably connected to one another for allowing access for cleaning and inspection and also for allowing rotatable adjustment of one portion with respect to the other.
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0 Petitions
Accused Products
Abstract
The present invention pertains to a condensate trap for a condensing furnace comprising a housing having an inlet adapted to be connected to a condensing heat exchanger, an outlet for flue gas and an outlet for condensate. The housing has a chamber therein, a valve seat defining an opening from the chamber, a float valve in the chamber adapted to close the opening, and a drain orifice in the outlet for condensate forming a dam to prevent negative pressure from undesirably dislodging the float valve from the opening. The drain orifice is constructed and arranged to retain condensate at a level higher than that of the bottom of the valve seat.
37 Citations
10 Claims
- 1. A condensate trap for a condensing pulsating combustion gas-fired furnace comprising a housing having an inlet adapted to be connected to a condensing heat exchanger, an outlet for flue gas and an outlet for condensate, said housing having a chamber therein, an opening defined in the chamber, a float valve in the chamber adapted to close the opening, and a drain orifice in the outlet for condensate forming a dam to prevent negative pressure from undesirably dislodging the float valve from the opening, said housing being comprised of two portions detachably connected to one another for allowing access for cleaning and inspection and also for allowing rotatable adjustment of one portion with respect to the other.
Specification