Abstract: A condensate trap for a furnace system includes a trap inlet configured to receive combusted gases, a condensate chamber coupled to the trap inlet and configured to trap condensate, a trap outlet coupled to the condensate chamber and configured to exhaust the combusted gases, a header box inlet configured to receive condensate from a header box, and a condensate outlet configured to drain condensate from the condensate chamber. Combusted gas that passes through the condensate trap provides heat to condensate within the condensate trap to thaw frozen condensate or to prevent condensate from freezing.

Abstract: A furnace includes a gas burner exposed to a heat-exchange tube. An inducer is fluidly coupled to the heat-exchange tube and configured to induce draft air through the heat-exchange tube. A regulator is fluidly coupled to the gas burner. A rollout shield is disposed adjacent to the gas burner. A rollout switch is disposed in the rollout shield. The rollout switch is electrically coupled to the regulator. At least one vent is formed through the rollout shield adjacent to the rollout switch. The vent provides a path for a rollout flame to the rollout switch. The at least one vent is disposed on at least two sides of the rollout switch.

Abstract: A furnace includes a gas burner exposed to a heat-exchange tube. An inducer is fluidly coupled to the heat-exchange tube and configured to induce draft air through the heat-exchange tube. A regulator is fluidly coupled to the gas burner. A rollout shield is disposed adjacent to the gas burner. A rollout switch is disposed in the rollout shield. The rollout switch is electrically coupled to the regulator. At least one vent is formed through the rollout shield adjacent to the rollout switch. The vent provides a path for a rollout flame to the rollout switch. The at least one vent is disposed on at least two sides of the rollout switch.

Abstract: A condensate trap for a furnace system includes a trap inlet configured to receive combusted gases, a condensate chamber coupled to the trap inlet and configured to trap condensate, a trap outlet coupled to the condensate chamber and configured to exhaust the combusted gases, a header box inlet configured to receive condensate from a header box, and a condensate outlet configured to drain condensate from the condensate chamber. Combusted gas that passes through the condensate trap provides heat to condensate within the condensate trap to thaw frozen condensate or to prevent condensate from freezing.

Abstract: A condensate trap for a furnace system includes a trap inlet configured to receive combusted gases, a condensate chamber coupled to the trap inlet and configured to trap condensate, a trap outlet coupled to the condensate chamber and configured to exhaust the combusted gases, a header box inlet configured to receive condensate from a header box, and a condensate outlet configured to drain condensate from the condensate chamber. Combusted gas that passes through the condensate trap provides heat to condensate within the condensate trap to thaw frozen condensate or to prevent condensate from freezing.

Abstract: A furnace includes a gas burner exposed to a heat-exchange tube. An inducer is fluidly coupled to the heat-exchange tube and configured to induce draft air through the heat-exchange tube. A regulator is fluidly coupled to the gas burner. A rollout shield is disposed adjacent to the gas burner. A rollout switch is disposed in the rollout shield. The rollout switch is electrically coupled to the regulator. At least one vent is formed through the rollout shield adjacent to the rollout switch. The vent provides a path for a rollout flame to the rollout switch. The at least one vent is disposed on at least two sides of the rollout switch.

Abstract: A condensate trap for a furnace system includes a trap inlet configured to receive combusted gases, a condensate chamber coupled to the trap inlet and configured to trap condensate, a trap outlet coupled to the condensate chamber and configured to exhaust the combusted gases, a header box inlet configured to receive condensate from a header box, and a condensate outlet configured to drain condensate from the condensate chamber. Combusted gas that passes through the condensate trap provides heat to condensate within the condensate trap to thaw frozen condensate or to prevent condensate from freezing.

Abstract: A condensation trap comprising an inlet chamber configured to receive condensate liquid through a receiving opening therein. The trap also comprises an internal chamber in fluid communication with the inlet chamber via a first internal opening defined by a sidewall shared by the inlet chamber and the internal chamber, the first internal opening located at an opposite end of the inlet chamber from the receiving opening. The trap also comprises an outlet chamber in fluid communication with the internal chamber via a second internal opening located at an opposite end of the internal chamber from the first internal opening. The trap also comprises a bleed orifice located in a sidewall shared by the internal chamber and the outlet chamber, wherein at least a portion of the bleed orifice is lateral to first internal opening.

Abstract: One aspect of this disclosure provides a packaged air conditioning & heating (PACH) system that comprises a housing, an air cooling system contained within the housing and an air heating system contained within the housing. A first utility access point is located on a first side of the housing and a second utility access point is located on a second side of the housing. The first and second utility access points provide multiple utility access connectivity for the air cooling and heating systems.

Abstract: A distributor assembly for a space conditioning system comprising a sealed expansion device and a sealed distributor housing. The expansion device has a first opening, a second opening and an interior chamber there-between. The interior chamber contains an orifice housing, wherein the orifice housing has a through-hole orifice therein. The orifice housing is configured to move between the first opening and the second opening within the interior chamber. An outer surface of the orifice housing forms a fluid stop around the first opening such that a refrigeration fluid of the space conditioning system delivered through the second opening can substantially only pass through the through-hole orifice to the first opening. The distributor housing has a largest opening that is permanently sealed to the first opening of the sealed expansion device and a plurality of smaller openings configured to be fluidly connected to a heat-exchange coil of the space conditioning system.

Abstract: The system is adapted for saving energy in an ambient air and conventional refrigeration system by independently controlling the compressor, evaporator fans and door heating unit in conjunction with the outdoor temperatures and the unit's internal temperature. The system also provides controls that provide for freeze up protection. The system can be adapted for use with walk in cooler units currently in operation to provide a system that can provide operational cost savings and increased efficiency for the operator.

Abstract: A service building (10) having a base assembly (20) formed with a perimeter support portion (21) and a floor portion (22). The perimeter support portion (21) utilizes weight bearing side rails (23) with one or more transverse, weight supporting beam means (35) extending between at least one pair of opposite side rails (23). Decking sheets (30), insulating mats (44) and sump pans (48) are supported from the side rails (23) and beam means (35). Wall panel assemblies (60) are secured to the perimeter support portion (21) by sill connector assemblies (78). Post assemblies (105, 135 and 165) between the wall panel assemblies (60) secure adjacent wall panel assemblies together. A roof (not shown) may be secured to the service building (10) using connector assemblies substantially identical with the post assemblies.