Abstract: The present invention is a drainpipe heat exchanger to heat cold water using drainwater heat. A slit in a stiff exterior plastic sleeve with band clamps combine with internal hydraulic pressure to create a very high thermal contact force. Vertical and horizontal embodiments with and without protected heat storage are disclosed including a half jacket design for installation around operating drainpipes. A horizontal embodiment discloses a two-piece plastic-copper design. Double-wall construction and venting for visible leak detection satisfies plumbing code requirements. Use on vehicular or other combustion engine exhaust pipes is also contemplated.

Abstract: A water production system (1) for making potable water (7) in an environment of humid tropical air (6) and cold deep ocean water (8) comprising a heat exchanger (2), means for controlling (3) the volume of the deep ocean water (2) passing through the heat exchanger (2) based on the amount of heat absorbed by the heat exchanger (2) in the process of condensing water vapor (7a) from the humid air (6), and means for enhancing (4) the rate of at which water vapor (7a) is condensed including a positive air pressure dome (9) system for enhancing the humidity, condensation rate, and water quality, and a continuous coil (2a) disposed in the flow of humid air (6) to condense additional potable water (7), and means for vibrating (38) elements of the system to increase condensation.

Abstract: A pump assembly and a method for removing condensate from an elevated air conditioner of a transport structure are provided. The air conditioner includes a base pan with a sump. The pump assembly includes a pump, a suction line and a discharge line. The pump is configured to be in electrical communication with the air conditioner. The suction line enters the pump and is configured to be in fluid communication with the sump. The discharge line exits the pump and is configured to be in fluid communication with a hose of a drainage means of the transport structure. The pump operatively moves condensate in the sump to the hose of the drainage means to remove the condensate from the transport structure.

Abstract: The present invention relates to HVAC units with condensate drainage systems, for use in motorized vehicles. The present invention provides for at least two or dual condensate drain paths with no extra parts required pre-distribution of the treated air from the HVAC unit, the drainage means or channel situated to allow condensate to ‘fall back’ or, to run upstream back from the evaporator in the opposite direction to the air in the main airflow or stream which continues to run downstream from the drainage area to be conditioned by the heat exchanger.

Abstract: A portable cooling/heating unit for cooling/heating a product container. The unit includes a thermoelectric assembly, a housing, a front side fan, and a rear side fan. The thermoelectric assembly includes a thermoelectric device, a first heat sink, and a second heat sink. The housing maintains the first heat sink and front fan within a front side channel, and the second heat sink and rear fan within a rear side channel. The housing further forms a condensation passageway segment that facilitates fluid connection between the channels. During use, the unit is removably assembled to the container such that openings of the front side channel are fluidly within the container's interior region. Accumulated condensation is directed to the rear side channel and evaporated.

Abstract: A refrigerator includes a main body defining a compartment, the compartment having an access opening, a first wall and a heat exchanger supported by the first wall; a refrigeration system containing therein a working medium and including an evaporator which is disposed outside of the compartment for cooling the compartment; a door supported by the main body for selectively closing at least part of the access opening of the compartment; and a sub-compartment on the door and including a second wall with an opening. The heat exchanger is coolable by the working medium. The heat exchanger and the second wall are positioned so that when the door is in a closed position, the heat exchanger is exposed to an interior of the sub-compartment through the opening.

Abstract: A heat exchanger includes an arrangement of refrigerant conveying heat exchange tubes and associated heat transfer fins and has an airflow inlet and an airflow outlet. A plurality of inlet guide vanes is disposed slightly upstream of the airflow inlet to the heat exchange tube arrangement so as to route incoming airflow through the heat exchange tube arrangement along a desired direction, in relation to the heat exchange tubes and associated fins, so as to improve drainage of accumulated condensate from the external surfaces of the heat exchange tubes and to enhance shedding of condensate from the surfaces of the heat transfer fins. Also, a plurality of outlet guide vanes can be disposed slightly downstream of the airflow outlet from the heat exchange tube arrangement.

Abstract: A coil support suitable for supporting a coil in a condensing unit includes a body and a protrusion extending from the body. The protrusion is configured to limit movement of the coil in at least one direction.

Abstract: An apparatus and method for condensing water vapor in air to extract liquid water includes an air duct, an air movement device, and a refrigeration system. The air duct has an entry port, an intermediate port, and an exit port; while the refrigeration system includes at least one evaporator and condenser within the air duct. The air movement device may be a fan within the air duct, to cause air flow through the condenser and out the exit port. The air has a dew point, and the evaporator temperature is at that dew point or less, to cause liquid water to condense on the evaporator's exterior surface. The intermediate port of the air duct is between the evaporator and condenser, such that air can enter the air duct by at least two paths: through the entry port and evaporator, and through the intermediate port which bypasses the evaporator.

Abstract: A refrigeration air dryer, which dehumidifies compressed air by cooling the air at a cooler by exchanging heat with a refrigerant, includes a first reheater and a second reheater. The first reheater has a configuration in which warm and moist primary air to be dehumidified is preliminarily cooled by exchanging heat between the primary air and low-temperature dehumidified air dehumidified by the cooler, and is transmitted to the cooler. At the same time, the temperature of the humidified air is raised, and the humidified air is transmitted to the second reheater. The second reheater has a configuration in which the humidified air having a temperature raised by the first reheater is again raised by exchanging heat with the high-temperature refrigerant compressed by the refrigerant compressor, following which the humidified air is externally discharged as secondary air.

Abstract: A heat exchanger, having a unit for draining condensed water collected in a lower portion of a heat exchanger core, is provided. The heat exchanger includes an upper header tank and a lower header tank; a plurality of tubes communicating with both the upper header tank and the lower header tank; a plurality of fins provided between neighboring tubes; and a plurality of condensed water drain units provided with respective fitting parts closely fitted onto ends of the tubes, wherein the condensed water drain units drain condensed water, collected in a space defined by the lower header tank, the tubes and the fins.

Abstract: An evaporator, in particular for a motor vehicle air conditioner, is provided that includes at least one block constructed largely of tube elements and rib elements, whereby it is possible for a refrigerant to flow through the tube elements, at least one section of the block being provided with a condensation water overflow protection means, which includes at least one restriction plate, the height of the restriction plate in at least one section being lower than a height in at least one second section adjacent to the first section.

Abstract: An environmental conditioning system has a compressor for compressor air in an air flow path. A turbine drives the compressor and is coupled to the compressor. An evaporator is in communication with the compressor. The evaporator is configured to cool air from the compressor.

Abstract: A first casing includes a first baffle plate, and a second casing includes a second baffle plate. The second baffle plate is contiguous to a guide rib, which is disposed underneath the second baffle plate, having a horizontal side wall and a slanted side wall. A slit is defined between the horizontal side wall and the slanted side wall, wherein the slit extends to an end face of a partition wall. When the first casing and the second casing are connected to each other, the first baffle plate is slidably inserted in the slit. The first baffle plate projects slightly from the slit into a liquid reservoir chamber, by a distance that is not large enough to increase air resistance with respect to air flowing in the vehicular air conditioning unit. An expansion valve is sandwiched between the first baffle plate and the second baffle plate.

Abstract: To collect freshwater from water using a freshwater collection system which comprises of a vapor collector field formed by vapor collectors which have floatable platforms with central holes, curved roofs which each spans over each central holes and which allow sun rays to penetrate through, channels each with a nipple, “U”-shaped vacuum breaker tubes, and many eyes; a floatable water sprinkling system which has a relatively stationary platform which has eyes and which encircles a sprinkler platform which has a pump with a screen at one end and at the other end with a pipe which connects with a sprinkler head, a fuel supply system and an internal combustion engine with gear system which drives the pump; and a freshwater collector relay which is an enclosed container with a one-way valve, a weight, a nipple near the weight, many eyes, and many nipples near the eyes and the one-way valve.

Abstract: An auxiliary drain pan for catching liquid that leaks or overflows from an appliance, system or machinery includes a central well and a pan plate surrounding the central well. The pan plate has a top surface that is sloped downwardly towards the central well such that, when the drain pan is operatively positioned on a generally horizontal plane, liquid on the top surface flows into the confined area of the well, thereby minimizing the weight of liquid collected in the drain pan. The well includes a drain line connection port and a removable wall segment for optional attachment of a water detection device. Parallel score lines in the pan plate, extending both longitudinally and transversely on all sides, define removable areas for adjustment of the overall size and shape of the drain pan, thereby allowing for customized sizing at the installation site.

Abstract: A heat exchange tube includes a tubular member having a flattened cross-section and extending along a longitudinal axis, and a longitudinally extending condensate drain channel formed in an upper wall of the flattened tubular member. A heat exchanger includes a first and a second spaced apart and generally vertical longitudinally extending headers, a plurality of heat exchange tubes disposed in parallel, spaced relationship in a generally vertical array and extending longitudinally between the first header and the second header, and a condensate drain extending longitudinally along, the upper wall of at least one of the plurality of flattened heat exchange tubes. The condensate drain may comprise a longitudinally extending condensate drain channel formed in an upper wall of said flattened tubular member, and/or a series of condensate drain portals formed in the heat transfer fins in a base portion bounding to the upper external surface of at least one heat exchange tube.

Abstract: A heat exchanger includes a first generally vertical header and a second generally vertical header and a generally vertical array of a plurality of generally flat heat exchange tubes extending in a horizontal direction therebetween. Each heat exchange tube has a plurality of channels extending longitudinally in parallel relationship from its inlet end to its outlet end, each channel defining a discrete refrigerant flow path. A plurality of fins extends between parallel-arrayed tubes. To facilitate drainage of the collected condensate from the external surfaces of the flat heat exchange tubes, the tubes are aligned at a slight angle with respect to the horizontal so that the trailing edge of each tube is positioned lower than the leading edge of each tube. To further assist in the condensate drainage, the trailing edge of each of the fins may extend beyond the trailing edge of the associated heat transfer tubes and a lower extension lip may extend downwardly from the trailing edge of each of the fins.

Abstract: A one-size-fits-all pan configured for supporting a fluid-producing unit. It has a perimeter wall spaced apart from a raised central structure to provide a moat-like area for flow of collected fluid toward a wall-mounted shut-off switch. When a desired maximum amount of fluid collection is exceeded, an electrical signal is sent to stop fluid production. The raised central structure comprises a hub with radially-extending ribs that each widens into a bent distal end having non-uniform height and width dimensions, and top indentations for receipt of vibration isolators that support the fluid-producing unit at a height above that of the perimeter wall. The non-raised areas around the ribs are all connected to the moat-like area to facilitate even fluid distribution within the pan. The pan further has an up-turned perimeter lip, staggered gussets, and angled corners for added strength, and may optionally have a nesting configuration for compact storage and transport.

Abstract: A cooling device for a switchgear cabinet having an air-conducting conduit in which an air/water heat exchanger is arranged, and through which cooling air flows and to which a condensate collection container for collecting accumulating condensate. A pump installation conveys the condensate out of the condensate collection container.

Abstract: An air-conditioning system of a motor vehicle, of the type comprising a primary cooling circuit, set entirely in the engine compartment, and a secondary cooling circuit that takes the cold from an evaporator or chiller of the primary circuit and conveys it to a heat exchanger set in the passenger compartment, is provided with means for setting in communication said secondary circuit with the heating circuit of the passenger compartment. In this way, the heat exchanger of the heating circuit, which is used as heater when the heating system is activated, can be used as additional mass for cooling the air of the passenger compartment to meet the peak requirement for cooling power in transient conditions, such as, for example, when a person prepares to get into the passenger compartment after the vehicle has been parked for some time in the sun, without this involving any oversizing of the air-conditioning system with respect to its prevalent conditions of use.

Abstract: A wind energy converter includes a wind turbine and a climate control mechanism operable as a dehumidifying mechanism for separating and removing humidity from air within one or more areas of the wind turbine. The climate control mechanism includes at least one cooling device for condensing humidity as well as at least one drain device for draining condensed water from the one or more areas being dehumidified. The wind energy converter includes a cooling flow mechanism for providing a flow of a cooling liquid to the at least one cooling device, thereby providing a heat sink for the cooling device.

Abstract: An air conditioning drain device essentially comprising a tubular pipe assembly, a flapper assembly, and a service port assembly. The device automatically engages a flapper valve that prevents the reverse flow of condensate water from entering a dwelling unit that shares a common drain line with multiple units, while at the same time allowing for quick and easy flushing of blockages in the drain line without causing water damage to the interior of the dwelling unit.

Abstract: An automatic draining apparatus of condensation comprises a condensation tank; a float moving up/down along the level of the condensation; a hydraulic pressure chamber consisting of a volume changeable container for containing the condensation, and a check valve provided at an inlet of the hydraulic pressure chamber, the check valve allowing the condensation to flow only into the container, the rising float pulling up the hydraulic pressure chamber so that the volume of the container is reduced and the condensation of the container is pressurized; and a siphon having an inlet connected to the hydraulic pressure, and an outlet being provided at outside and a level of the outlet placing at a lower level of the inlet, the siphon draining the condensation into the outside when the siphon is filled with the condensation discharged from the compressed hydraulic pressure chamber.

Abstract: The invention relates to a HVAC drainage system. There is a need for an HVAC drainage system which operates well in a vehicle which moves over rough terrain. An HVAC unit is mounted at a central portion of an inner roof panel over an air inlet opening. A collection recess is formed by the panel and surrounds the air inlet opening. Concentric walls formed by the inner roof panel in the collection recess surrounding the HVAC unit. Each wall has one or more gaps formed therein. The gaps in adjacent walls are mis-aligned with respect to each other so that fluid is prevented from flowing in a straight line through gaps in adjacent walls. Drainage ports are formed in the inner roof panel. Drainage grooves formed in the inner roof panel communicate the collection recess with corresponding drainage ports.

Abstract: An apparatus for draining condensate accumulated by an air handling unit element, the element presenting a footprint area, includes: a substantially unitary plurality of surfaces oriented between a first level and a second level and bounded by a peripheral wall. The first level is generally higher than the second level in an installed orientation. A first surface is situated substantially at the first level and is generally horizontal and presents a generally planar expanse generally coextensive with the footprint area in the installed orientation. A second surface generally extends from the second level at a first end of the apparatus to the first level at two loci separated by the first surface at a second end of the apparatus opposite the first end to orient the first surface in a generally nested relationship with respect to the second surface. At least one third surface joins the first and second surfaces.

Abstract: The present invention relates to a system for providing purified water, the system including a water vapor condenser, a separate water purifier, and piping coupling the condenser to the water purifier, the water purifier being distanced from the condenser sufficiently to provide noise insulation. According to a preferred embodiment of the present invention, the water purifier is sufficiently distanced from the condenser to permit placing the condenser in a location having higher humidity than the location of the water purifier.

Abstract: A dehumidifier unit includes a first coil in fluid communication with a source of cooling fluid, a second coil in fluid communication with the source of cooling fluid, a third coil in fluid communication with the source of cooling fluid, and a thermal unit disposed between the source of cooling fluid and the second and third coils. The thermal unit may be adapted to remove heat from cooling fluid flowing to the second coil and adapted to heat cooling fluid flowing to the third coil. A fan may be configured to move air across the first, second and third coils. The first coil may be configured to pre-cool air moving over the first coil, the second coil may be configured to dehumidify the air moving over the second coil, and the third coil may be configured to warm the air moving over the third coil. Other embodiments and methods of cooling are further disclosed.

Abstract: A refrigeration unit includes an external housing and an internal housing supported by a vehicle roof. The internal housing includes an inner wall spaced from an outer wall with air located between to insulate the components of the refrigeration unit from an interior of a vehicle. The internal housing, a condenser, a compressor, and an evaporator may be assembled together into a refrigeration unit chassis prior to assembly with the vehicle roof. Fasteners are used to assemble the internal housing to the chassis. The external housing and a cover to reduce the amount of contaminants that enter the refrigeration unit. Water drains are located at the bottom of the internal housing along the inner wall to collect and dispose of any water within the refrigeration unit.

Abstract: A refrigerating device for deep-frozen products is disclosed, having a coolant loop (1), comprising a compressor (2), a condenser (3), a throttle (4), and an evaporator (5), having a product chamber (7) temperature-impinged by the evaporator (5), and having a control unit (8) provided for deicing, which works together with the coolant loop (1) in such a way that upon deicing, both the evaporator (5) and also a drainage channel (9, 17) provided for receiving the condensed water are heated. To provide advantageous design conditions, it is suggested that the evaporator (5) impinge the temperature of the product chamber via the side wall (6) of the product chamber (7), and at least the side wall (6) impinged by the evaporator have the drainage channel (9, 17), the evaporator (5) at least partially heating the drainage channel (9, 17) upon deicing of the product chamber (7).

Abstract: A device for keeping cut flowers in condition comprises a holder (10) for receiving the cut flowers therein in a suitable medium, in particular water. Cooling means (21, 22) comprise a cooling body (22) which is capable of heat-exchanging contact with at least a part of a wall of the holder for cooling the medium therein. The holder has a bottom with a channel (13) for releasably receiving the cooling body (22) therein. In a method for displaying cut flowers such a holder is placed together with flowers received therein on a cooling body and, when deterioration is imminent, exchanged for a similar holder with a fresh bouquet of flowers.

Abstract: A combination filter assembly housing (4) and treatment chamber (8) for use in recovering and sanitizing condensates from air conditioning systems and other sources with vapors released from dissolvable tablets (32), such as those used for treating swimming pool water or laundering purposes. Filter assembly housing (4) has a removable bottom cover, an internal p-trap and valve structure configured to reduce the likelihood of treatment vapors from treatment chamber (8) traveling back through filter assembly housing (4) and entering the associated condensate producing system. Applications can include, but are not limited to, use with systems that replenish water lost from swimming pools due to evaporation, to provide water for filling toilets, pressure washing, cleaning, and other gray water uses, and to provide potable water in areas where is in limited supply.

Abstract: A cooling system of a heating element includes a passenger compartment, a heating element, a blower fan and a conducting duct. The blower fan is capable of sucking the air in the passenger compartment to supply the heating element with the air and cool the heating element. The conducting duct has one end portion connected with an inner space of the passenger compartment, the other end portion connected with the heating element, and an intermediate portion provided with the blower fan therein. The one end portion of the conducting duct is provided with a liquid trapping portion/part that separates the air and liquid contained in the air to prevent the liquid from entering the conducting duct.

Abstract: Automated condensate drain line cleaning apparatus are disclosed. In one aspect, an apparatus may include a controller, a fluid supply line, and at least one fluid flow regulation device. The at least one fluid flow regulation device may be electrically coupled with the controller to receive at least one control signal from the controller. The at least one fluid flow regulation device may cause a fluid to flow into a condensate drain line through the fluid supply line responsive to the at least one control signal. Other apparatus as well as methods and kits are also disclosed.

Abstract: A condensate water guide unit of an air conditioner for vehicles which collects and drains condensate water, generated on the evaporator, outside the air conditioner is disclosed. The condensate water guide unit includes a plurality of guide pieces for draining condensate water outside the air conditioner, and a support bar, which connects the guide pieces to each other. The guide pieces are in close contact with the lower end of an evaporator. Each guide piece has a guide slot for drawing condensate water formed on the surface of the evaporator, and a water moving passage for draining the drawn condensate water outside the air conditioner.

Abstract: A refrigeration device with an interior which is surrounded by a thermally insulating housing, a condensation water conduit is passed through the housing and has a siphon which is embedded in an insulation layer of the housing.

Abstract: Purified water production system from condensation of air humidity, system which is electronically controlled and composed of a appliance with an air entrance with filter; cold coil, for the condensation of air water vapor; collector and condensed water storage tank or primary storage tank, provided with a level sensor to recover the water condensed by the coil; purified water storage tank with level sensor for storing the water pumped from the primary storage tank and purified after going through the filter, ultra violet light, solid particles filter and, optionally, through a water structuring device.

Abstract: An autonomous water source for extracting water from ambient air and delivering it to a plant to support growth. The system is based on an adsorption-desorption-condensation cycle using a sorption material to extract moisture from ambient air and condensing the water vapor driven off from the sorption material by subsequent heating and followed by condensation. Liquid condensate produced in this process on the condenser is collected and delivered by gravity to a plant to reduce thermal stress and to support growth. The invention provides a sustainable source of irrigation water for agriculture and forestry, including areas where no water resources exist or are not economically viable. It can be tailored in size, and therefore, output capacity, reflecting the desired water requirements of a particular application, and can be used to replace most agricultural situations now reliant on surface water drip feed systems.

Abstract: A refrigeration device, in particular a no-frost device, refrigerator and/or freezer, comprising a thermally insulating housing containing at least one product storage compartment that can be supplied with cold air by a fan and an evaporator chamber that holds an evaporator. According to the invention, the evaporator chamber is thermally separated from the storage compartment by a partition. The device also comprises an electronic control system for controlling the refrigeration device and at least one light source for illuminating the storage compartment. The evaporator, the partition and the electronic control system and/or the evaporator, the partition and the light source are provided in the form of modules. The refrigeration device is characterised in that it is particularly reliable, works efficiently, can be cost-effectively produced and is easy to service.

Abstract: A modular and compact air conditioning system is designed to be conveyed by a ground support equipment cart and to occupy minimal space within the cart. The system is constructed within a rectangular frame supporting top, bottom, left side, right side, front side, and back side panels. The top and back side panels contain thin air conditioner condensers. One of the left and right side panels contain an air outlet, and the other contains an air inlet and a duct that may be connected to an airplane to provide cooling air to the airplane. A condenser fan is mounted within the rectangular frame and is arranged to draw outside air in through the condensers and to blow the air out through the air outlet.

Abstract: An evaporatively pre-cooled seat assembly comprising a seat cushion, an auxiliary cooler, and an evaporative cooler. The evaporative cooler includes a plurality of parallel tubular dry channels and a plurality of tubular wet channels. The dry channels and wet channels are arranged such that they alternate from dry channel to wet channel from channel to channel. Each of the channels is defined by two parallel side walls, a top, and a bottom. A first plurality of dry channels defines a plurality of apertures in the side walls thereof for conveying air out of the respective dry channel and into an adjacent wet channel. A second plurality of dry channels alternates with the first plurality and is disposed between two wet channels and defines a plurality of cooler apertures in the tops thereof for conveying cooled air out of the second plurality of alternating dry channels and to the auxiliary cooler.

Abstract: A centrifugal turbocompressor including an open-type impeller and a casing compresses a gaseous body that condenses into a liquid. The compressor suppresses erosion due to accumulation of a liquid on a casing surface in the compressor. Such accumulation is possible during the starting time of the compressor, if the gaseous body that has come into contact with the casing condenses on the surface of the casing and changes into liquid droplets, centrifugal force may cause the droplets to accumulate on the surface of the casing positioned outside an impeller, and thus to grow into coarser and larger droplets or a liquid film. If the blade tips of the impeller rotating at high speed scrape the droplets or the film upward, erosion of the blade tips is liable to result.

Abstract: A system and method for increasing the functionality of a heat pump by collecting condensed water from the cold element of the heat pump and applying the condensed water to humidify the atmosphere of an enclosure being heated or cooled or applying the water to cool a hot element of the heat pump.

Abstract: A refrigerator having a body defined with a plurality of cooling compartments, a plate arranged to partition the cooling compartments, and a cold air supplier arranged at one wall of the plate, to supply a cold air to at least one of the cooling compartments.

Abstract: Device (1) for dissipating the water produced by air conditioning systems comprising a main housing provided with an electrical connection box (e), one water intake (a), two water outlet pipes (b, c), heat water dissipating means (g) and outlet holes (d) for the dissipated water. The water intake (a) is connected to the flowing out water hose of an air conditioning apparatus and receives the water produced during its performance, and water outlet pipe (b) is an overflowing water outlet of the device (1) for use in case of emergency like for example a lack of power supply, to which also a hose can be connected for a proper output of the water in such cases. Water outlet pipe (c) is a drain plug to be used also in emergency situations when the device is not working and the water contained in the device (1) must be had out.

Abstract: A refrigerator and a method for manufacturing the same. The refrigerator includes a main body which has a specified space and a open front surface, and a plate having a specified thickness, in which the plate is inserted into the main body through one side of the open front surface of the main body to sectionalize the space provided in the main body.

Abstract: The present invention provides a retaining clip for securing an air conditioning evaporator coil to a drain pan. The retaining clip has a U-shaped body formed from a single piece of material, wherein parallel panels for the sides of the U. One side of the U is longer than the other. A tab is formed from the end of the side panel that constitutes the longer side of the U, wherein the tab points toward the center of the U and is approximately perpendicular to the sides of the U. The retaining clip is mounted over a side wall of the drain pan, with the tab securing the clip in place by fitting underneath a section of the drain pan wall that projects outward from the general plane of the wall.

Abstract: A ventilation device of a refrigerator is configured to prevent freezing of condensed water. The condensed water does not accumulate at the corresponding portion, and hence formation of ice is prevented. The generation of noise and the change of the efficiency of the ventilation fan do not occur, and the risk of ice contacting the shroud of the ventilation fan is reduced and reliability may be improved.

Abstract: An air conditioning system for automotive vehicles includes an air conditioning case having an internal passageway and an ionizer for emitting positive ions and negative ions into the internal passageway of the air conditioning case. The ionizer includes a main body and first and second discharge electrodes extending from the main body into the internal passageway in a spaced-apart relationship with each other. The air conditioning system further includes an electric short preventing arrangement for preventing moisture positioned in and around the first and second discharge electrodes from causing electric short between the first and second discharge electrodes. The electric short preventing arrangement comprises a water drainage rib for draining the moisture condensed in and around the first and second discharge electrodes to prevent the electric short between the first and second discharge electrodes.

Abstract: The present invention is a drain system for use with a manifold plumbing control unit (MPCU) including a drain pan having a sloping bottom surface with a peripheral wall forming a reservoir. The peripheral wall may include upwardly extending sidewalls, and upwardly extending endwalls secured to the edges of the sloped bottom surface. One or more attachment brackets may extend from the wall to facilitate attachment to one or more wall studs under the MPCU. The drain pan has a unique drain hole assembly in the bottom surface for attachment of a drainage line, that prevents the line from protruding upward to prevent blockage of the drain. A separate access opening is provided in the bottom surface to allow for passage of a water supply line to the MPCU. In alternative embodiments, splash shields may be provided to surround the MPCU to help contain and drain off any spraying or leaking liquid into the drain pan. Methods of installation are also provided.