US20070116442A1 - Air handler heat kit installation and mounting - Google Patents
Air handler heat kit installation and mounting Download PDFInfo
- Publication number
- US20070116442A1 US20070116442A1 US11/284,873 US28487305A US2007116442A1 US 20070116442 A1 US20070116442 A1 US 20070116442A1 US 28487305 A US28487305 A US 28487305A US 2007116442 A1 US2007116442 A1 US 2007116442A1
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- US
- United States
- Prior art keywords
- guide member
- channel
- heating arrangement
- handling unit
- air handling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
Definitions
- the present invention is directed to a heat kit installation, and more particularly, is directed to a heat kit installation mounting device for use with an air handling unit.
- Air handling units are one of several components in cooling and heating systems. They are an important component as the AHU houses a number of components used in the system to provide forced air for climate control in a particular structure. AHU components typically include motors, heating/cooling coils, and blowers as well as the required interface connections to effect such climate control.
- an AHU compartment or blower compartment includes adjacent walls partially surrounding a blower with support structure extending transversely to the blower. Transverse members extending between support structures structurally secure the blower against an aperture formed in the wall so that during operation of the blower, air is propelled from the blower compartment for circulation of the air to the structure.
- Some AHUs are provided with what is commonly referred to as an electric heat kit or heat kit.
- a heat kit typically includes electric resistance heating elements and associated components required for operation. The electric resistance heating elements and associated components are typically secured to a single support structure within the AHU.
- the heat kit is typically installed into the AHU so that the electric resistance heating elements are disposed adjacent to a blower.
- the electric resistance heating elements heat the air that is circulated through a structure by the blower.
- the heat kit is typically directed inside a compartment containing the blower.
- the portion of the heat kit containing the electric resistance heating elements is then inserted through an opening in a wall separating the compartment containing the blower from an adjacent compartment downstream from the blower compartment.
- the clearance between the opening and the electric resistance heating elements is minimal, since it is desirable to maximize the surface area of the electric resistance heating elements with respect to the cross sectional surface area of the adjacent compartment to maximize the effectiveness of the electric resistance heating elements.
- the minimal clearance between the compartmental wall opening and the electric resistance heating elements results in a difficult installation of the heat kit, which is further complicated due to the susceptibility to damage to the electric resistance heating elements.
- the installation is yet further complicated when performed as a retrofit to an operational AHU, in which the blower can be positioned in non-ergonomic orientations that are poorly lit.
- Some heat kits include an aperture in a distal portion of a blower compartment of an AHU that engages a rod secured to the heat kit when the heat kit is properly installed to secure the heat kit in position.
- this construction does nothing to simplify the installation of the heat kit, as the electric heating elements must still be painstakingly guided through the opening in the compartmental wall of the AHU.
- What is needed is a heat kit mounting device that greatly simplifies the installation of a heat kit inside an AHU, while providing a reduction in both installation time and significantly reducing the opportunity to damage the electric resistance heating elements during installation.
- the present invention relates to a heating arrangement for use in an air handling unit including at least one heating device to be disposed in the airflow of an air handling unit.
- a base is configured to support the at least one heating device and a first guide member is to be mounted on a structural component inside the air handling unit.
- a second guide member is mounted on the base, the second guide member being configured to engage the first guide member. Engagement of the first guide member and the second guide member positions the at least one heating device to an installed position inside the air handling unit.
- the present invention further relates to a method of installing a heating arrangement in an air handling unit.
- the steps include providing at least one heating device to heat an airflow of an air handling unit and providing a base configured to support the at least one heating device, the base including a first guide member.
- the method further includes mounting a second guide member on a structural component inside the air handling unit, and aligning the first guide member with the second guide member to engage the second guide member.
- the method further includes directing the first guide member into engagement with the second guide member to position the at least one heating device in an installed position inside the air handling unit.
- An advantage of the present invention is that it is inexpensive to manufacture.
- a further advantage of the present invention is that it requires few parts.
- a still further advantage of the present invention is that it reduces the time required to install a heat kit inside an AHU.
- An additional advantage of the present invention is that it simplifies installation of a heat kit inside an AHU.
- a further advantage of the present invention is that it reduces the opportunity to damage the electric resistance heating elements during installation of a heat kit inside an AHU.
- FIG. 1 is an enlarged, partial perspective view of a AHU blower compartment including a guide of the present invention.
- FIGS. 2 and 3 are opposed perspective views of a heat kit of the present invention.
- FIGS. 4-6 are perspective views of embodiments of a heat kit of the present invention.
- FIG. 7 is an enlarged, partial perspective view of a partially installed heat kit of the present invention.
- FIG. 8 is an enlarged, partial perspective view of embodiments of a fully installed heat kit of the present invention.
- FIG. 9 is a partial end view of an alternate embodiment of a heat kit bracket engaged with a guide of the present invention.
- FIG. 10 is a partial end view of a further alternate embodiment of a heat kit bracket engaged with a guide of the present invention.
- FIG. 1 illustrates one embodiment of a guide 30 in an AHU compartment 10 .
- the AHU compartment or blower compartment 10 includes adjacent walls 15 , 16 , 18 partially surrounding a blower 12 with support structures 20 , 22 extending transversely to the blower 12 .
- Transverse members 24 , 26 extending between support structures 20 , 22 structurally secure the blower 12 within the blower compartment 10 so that during operation of the blower 12 , air is propelled from the blower compartment 10 for circulation of the air to the structure.
- Guide 30 facilitates easy installation of a heat kit 52 ( FIG. 2 ) inside the blower compartment 10 , wherein a heater 62 of the heat kit 52 is directed through a narrow opening 28 in the blower compartment without damaging the heater 62 of the heat kit 52 .
- guide 30 is supported by support members 20 , 22 , such as angle rail members, and may additionally include a tab 46 extending from an end 42 of the guide 30 that is received in a slot 45 formed in a panel 14 of the AHU compartment that is secured to support member 20 .
- Guide 30 includes a base 32 having opposed sides 34 , 36 , with retainers 35 , 37 extending from the respective sides 34 , 36 . Collectively, retainer 35 and retainer 37 each define a channel 38 with the base 32 to receive a portion of a heat kit 52 , such as a bracket 78 (see FIGS. 2, 3 ) for guiding the heat kit 52 into an installed position (see FIG. 8 ) without damaging the heat kit 52 .
- a heat kit 52 such as a bracket 78 (see FIGS. 2, 3 ) for guiding the heat kit 52 into an installed position (see FIG. 8 ) without damaging the heat kit 52 .
- a projection 44 is preferably disposed adjacent to both the end 40 and the channel 38 of guide 30 , as will be further discussed in detail below.
- tab 46 extends from end 42 of the guide 30 for insertion into slot 45 in the panel 14 to secure the guide 30 to the support structure inside the AHU blower compartment.
- a tab 48 extends from end 40 at an angle with respect to the base 32 to abut the support structure 20 upon installation of the guide 30 inside the AHU blower compartment 10 .
- a fastener 50 such as a screw or bolt, is actuated to secure the guide 30 to the support structure 20 .
- the guide 30 is shown having a unitary construction including a pair of channels for receiving corresponding structure of the heat kit 52 .
- the guide 30 can be constructed of two or more pieces, and can be any suitable construction that slidably engages the heat kit 52 so that the heat kit 52 is not damaged during installation inside the AHU blower compartment 10 , irrespective the orientation of the heat kit 52 .
- Both the opening 28 and slot 45 formed in the panel 14 of the AHU blower compartment 10 , as well as the aperture for securing tab 48 of guide 30 to the support member 22 if desired, can be formed during manufacture of the AHU blower compartment 10 .
- a plate (not shown) can then be installed over opening 28 if the AHU as manufactured is not to include the heat kit.
- a template (not shown) provided with each heat kit can be used to locate and subsequently form the opening 28 and slot 45 in panel 14 of the AHU blower compartment 10 .
- heat kit 52 includes a base 54 having adjacent base portions 56 , 58 preferably maintained perpendicular to each other for securing respective components 70 , 68 thereto.
- An end of base portion 56 includes a retainer 60 for abutting the support structure 20 when the heat kit 52 is in an installed position (see FIG. 8 ).
- the retainer 60 includes a gap 61 so that retainer 60 does not interfere with the tab 48 of the guide 30 .
- Components 70 , 68 can include any combination of limit switches, control devices, such as relays or sequencers, circuit breakers, or the like required for operation of the heat kit 52 .
- Components 70 , 68 are electrically connected by an electrical connection 72 , as required.
- one of the components 70 , 68 include a wiring harness 74 and connector 76 to connect with an electrical power source (not shown).
- heater 62 extends substantially perpendicular from base portion 58 so that when the heater 62 is installed in the AHU compartment 10 , heater 62 extends through the opening 28 of the AHU compartment and is in fluid communication with the air provided by the blower 12 for providing heated air to the structure.
- Heater 62 typically includes a plurality of supports 66 secured to the base portion 58 , the supports 66 supporting electric resistance coils 64 that become heated when electrical current is applied to the coils 64 .
- Bracket 78 is secured to the bottom surface of the base portion 56 adjacent to the juncture of base portions 56 , 58 .
- Bracket 78 includes a base 80 having opposed legs 82 extending substantially perpendicular to the juncture of base portions 56 , 58 .
- Each leg 82 has a leg portion 84 extending away from the base 80 , such as perpendicular from the base 80 , and a flange 86 extending from leg portion 84 away from the base 80 .
- Flanges 86 preferably are substantially parallel with the base portion 56 .
- the ends of the flanges 86 adjacent to the juncture between the base portions 56 , 58 each include a chamfer 88 to more easily facilitate the engagement of the flange 86 with the guide 30 .
- the chamfered end 88 of the flanges 86 are directed toward and between the oversized projections 44 , which greatly assists in aligning the flanges 86 with the channels 38 of the guide 30 .
- the projections 44 may be parallel to each other or non-parallel to each other, such as defining a V-shape, to provide a “funnel effect” to further assist in bringing the flanges 86 into alignment with the channels 38 .
- the orientation of the base portion 56 must only be slightly pivoted about an axis 89 defined by the chamfered ends 88 to sufficiently align the flange 86 with the corresponding channels 38 to permit insertion of the flanges 86 inside the channels 38 .
- the heat kit 52 is properly aligned so that the heater 62 can be directed through the opening 28 until base portion 58 of the heat kit 52 abuts the panel 14 of the AHU compartment, the base portion 58 completely covering and overlapping the opening 28 as shown in FIG. 8 .
- FIG. 7 shows the heat kit 52 being partially installed after the flanges 86 and the channels 38 have been partially engaged
- FIG. 8 shows the heat kit 52 in a fully installed position.
- fasteners can be installed through either or both of the base portions 56 , 58 of the base 54 of the heat kit 52 and supporting structure 20 , 22 or panel 14 of the AHU compartment wall.
- a U-shaped rod 90 having opposed legs 92 separated by a web 94 is secured at a predetermined spacing from the bottom of base portion 56 for engaging guide 30 .
- Each end of the legs 92 extends through an aperture 98 formed in retainer 60 .
- a standoff 100 is interposed between the web 94 and the base portion 56 to secure the web 94 .
- the junctures of the legs 92 and web 94 are directed toward and between the oversized projections 44 , which greatly assists in aligning the legs 92 with the channels 38 of the guide 30 .
- the orientation of the base portion 56 must only be slightly pivoted about the web 90 to sufficiently align the legs 92 with the corresponding channels 38 to permit insertion of the legs 92 inside the channels 38 .
- the heat kit 52 is properly aligned so that the heater 62 can be directed through the opening 28 until base portion 58 of the heat kit 52 abuts the panel 14 of the AHU compartment 10 .
- a pair of rod members 102 is used to guide heat kit 52 inside the AHU compartment 10 .
- Each rod member 102 includes a substantially straight section 110 that extends to a transition portion 106 having an end 104 that is inserted into an aperture 98 formed in the retainer 60 .
- the substantially straight section 110 extends to a transition portion 108 that is secured to the base portion 56 by methods known in the art, including adhesives, welding, or insertion into a recess formed in the base portion 56 .
- the junctures of the transition portions 108 and rod members 102 are directed toward and between the oversized projections 44 , which greatly assists in aligning the straight portions 110 with the channels 38 of the guide 30 .
- axis 111 which is defined by the juncture of the transition portions 108 and straight portions 110 , sufficiently aligns the straight portions 110 with the corresponding channels 38 to permit insertion of the straight portions 110 inside the channels 38 .
- the heat kit 52 is properly aligned so that the heater 62 can be directed through the opening 28 until base portion 58 of the heat kit 52 abuts the panel 14 of the AHU compartment, the base portion 58 completely covering and overlapping the opening 28 as shown in FIG. 8 .
- FIG. 6 another embodiment of the heat kit 52 includes a pair of opposed legs 112 extending from the bottom of base portion 56 .
- Each leg 112 includes a leg portion 114 that extends away from the base portion 56 , and flange 116 that extends from the leg portion 114 away from base portion 56 .
- the legs 112 provide a unitary base 54 construction.
- Each flange 116 is configured to engage a corresponding channel 38 to secure the heat kit 52 to the guide 30 , the flanges 116 preferably including a chamfer 118 adjacent the juncture of base portions 56 , 58 to further facilitate engagement with the channel 38 in a manner previously discussed.
- the guide 30 is shown as a component that is installed in the AHU compartment, the guide can be incorporated into the existing support structure 20 , 22 or transverse members 24 , 26 , if desired. Further, although the guide 30 as shown requires the heat kit to be inserted inside the AHU compartment, the guide can be extended outside the AHU compartment to permit the heat kit to engage the guide exterior of the AHU compartment, the guide being usable to guide the heat kit to its installed position. The extended portion of the guide could be removable if desired.
- base 54 and base portion 56 can have unequal widths.
- retainers 35 , 37 are shown to define channels 38 on guide 30 that face each other (i.e., FIG. 1 ), as shown in FIG. 9 , the channel arrangement can also face away from each other.
- guide 130 includes a base 132 having opposed legs 134 .
- Each leg 134 has a leg portion 136 extending away from the base 132 , such as perpendicular to the base 132 and a flange 138 extending from leg portion 136 away from base 132 .
- Flanges 138 preferably are substantially parallel with the base 132 .
- Bracket 178 which is otherwise similar to bracket 78 , includes flanges 186 that differ from flanges 86 in that flanges 186 extend toward each other. Collectively, each flange 186 , leg portion 84 and base 80 defines a channel 188 . Each flange 138 of the bracket 130 slidably engages a corresponding channel 188 to secure the base portion 56 of the heat kit 52 to the guide 130 .
- guide 230 includes a base 232 having a leg 234 extending away from the base 232 .
- Leg 234 terminates at a cap 236 having flange portions 238 extending away from leg 234 .
- Each flange portion 238 slidably engages a corresponding channel 188 to secure the base portion 56 of the heat kit 52 to the guide 230 .
Abstract
A heating arrangement is provided for use in an air handling unit. The heating arrangement includes at least one heating device to be disposed in the airflow of an air handling unit. A base is configured to support the at least one heating device and a first guide member to be mounted on a structural component inside the air handling unit. A second guide member is mounted on the base, the second guide member being configured to slidably engage the first guide member. Sliding engagement of the first guide member and the second guide member positions the at least one heating device to an installed position inside the air handling unit.
Description
- The present invention is directed to a heat kit installation, and more particularly, is directed to a heat kit installation mounting device for use with an air handling unit.
- Air handling units (AHUs) are one of several components in cooling and heating systems. They are an important component as the AHU houses a number of components used in the system to provide forced air for climate control in a particular structure. AHU components typically include motors, heating/cooling coils, and blowers as well as the required interface connections to effect such climate control.
- As discussed above, an AHU compartment or blower compartment includes adjacent walls partially surrounding a blower with support structure extending transversely to the blower. Transverse members extending between support structures structurally secure the blower against an aperture formed in the wall so that during operation of the blower, air is propelled from the blower compartment for circulation of the air to the structure. Some AHUs are provided with what is commonly referred to as an electric heat kit or heat kit. A heat kit typically includes electric resistance heating elements and associated components required for operation. The electric resistance heating elements and associated components are typically secured to a single support structure within the AHU.
- The heat kit is typically installed into the AHU so that the electric resistance heating elements are disposed adjacent to a blower. The electric resistance heating elements heat the air that is circulated through a structure by the blower. To install a heat kit inside the AHU, the heat kit is typically directed inside a compartment containing the blower. The portion of the heat kit containing the electric resistance heating elements is then inserted through an opening in a wall separating the compartment containing the blower from an adjacent compartment downstream from the blower compartment. The clearance between the opening and the electric resistance heating elements is minimal, since it is desirable to maximize the surface area of the electric resistance heating elements with respect to the cross sectional surface area of the adjacent compartment to maximize the effectiveness of the electric resistance heating elements. However, the minimal clearance between the compartmental wall opening and the electric resistance heating elements results in a difficult installation of the heat kit, which is further complicated due to the susceptibility to damage to the electric resistance heating elements. The installation is yet further complicated when performed as a retrofit to an operational AHU, in which the blower can be positioned in non-ergonomic orientations that are poorly lit.
- Some heat kits include an aperture in a distal portion of a blower compartment of an AHU that engages a rod secured to the heat kit when the heat kit is properly installed to secure the heat kit in position. However, this construction does nothing to simplify the installation of the heat kit, as the electric heating elements must still be painstakingly guided through the opening in the compartmental wall of the AHU.
- What is needed is a heat kit mounting device that greatly simplifies the installation of a heat kit inside an AHU, while providing a reduction in both installation time and significantly reducing the opportunity to damage the electric resistance heating elements during installation.
- The present invention relates to a heating arrangement for use in an air handling unit including at least one heating device to be disposed in the airflow of an air handling unit. A base is configured to support the at least one heating device and a first guide member is to be mounted on a structural component inside the air handling unit. A second guide member is mounted on the base, the second guide member being configured to engage the first guide member. Engagement of the first guide member and the second guide member positions the at least one heating device to an installed position inside the air handling unit.
- The present invention further relates to a method of installing a heating arrangement in an air handling unit. The steps include providing at least one heating device to heat an airflow of an air handling unit and providing a base configured to support the at least one heating device, the base including a first guide member. The method further includes mounting a second guide member on a structural component inside the air handling unit, and aligning the first guide member with the second guide member to engage the second guide member. The method further includes directing the first guide member into engagement with the second guide member to position the at least one heating device in an installed position inside the air handling unit.
- An advantage of the present invention is that it is inexpensive to manufacture.
- A further advantage of the present invention is that it requires few parts.
- A still further advantage of the present invention is that it reduces the time required to install a heat kit inside an AHU.
- An additional advantage of the present invention is that it simplifies installation of a heat kit inside an AHU.
- A further advantage of the present invention is that it reduces the opportunity to damage the electric resistance heating elements during installation of a heat kit inside an AHU.
- Other features and advantages of the present invention will be apparent from the following more detailed description of the preferred embodiment, taken in conjunction with the accompanying drawings which illustrate, by way of example, the principles of the invention.
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FIG. 1 is an enlarged, partial perspective view of a AHU blower compartment including a guide of the present invention. -
FIGS. 2 and 3 are opposed perspective views of a heat kit of the present invention. -
FIGS. 4-6 are perspective views of embodiments of a heat kit of the present invention. -
FIG. 7 is an enlarged, partial perspective view of a partially installed heat kit of the present invention. -
FIG. 8 is an enlarged, partial perspective view of embodiments of a fully installed heat kit of the present invention. -
FIG. 9 is a partial end view of an alternate embodiment of a heat kit bracket engaged with a guide of the present invention. -
FIG. 10 is a partial end view of a further alternate embodiment of a heat kit bracket engaged with a guide of the present invention. - Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. Skilled artisans will appreciate that elements in the figures are illustrated for simplicity and clarity and have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the figures may be exaggerated relative to other elements to help to improve understanding of various embodiments of the present invention. Also, common but well-understood elements that are useful or necessary in a commercially feasible embodiment are typically not depicted in order to facilitate a less obstructed view of these various embodiments of the present invention.
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FIG. 1 illustrates one embodiment of aguide 30 in an AHU compartment 10. As discussed above, the AHU compartment or blower compartment 10 includesadjacent walls blower 12 withsupport structures blower 12.Transverse members support structures blower 12 within the blower compartment 10 so that during operation of theblower 12, air is propelled from the blower compartment 10 for circulation of the air to the structure.Guide 30 facilitates easy installation of a heat kit 52 (FIG. 2 ) inside the blower compartment 10, wherein aheater 62 of theheat kit 52 is directed through anarrow opening 28 in the blower compartment without damaging theheater 62 of theheat kit 52. - Further referring to
FIG. 1 ,guide 30 is supported bysupport members tab 46 extending from anend 42 of theguide 30 that is received in aslot 45 formed in apanel 14 of the AHU compartment that is secured to supportmember 20.Guide 30 includes a base 32 having opposedsides retainers respective sides retainer 35 andretainer 37 each define achannel 38 with the base 32 to receive a portion of aheat kit 52, such as a bracket 78 (seeFIGS. 2, 3 ) for guiding theheat kit 52 into an installed position (seeFIG. 8 ) without damaging theheat kit 52. Moreover, aprojection 44 is preferably disposed adjacent to both theend 40 and thechannel 38 ofguide 30, as will be further discussed in detail below. Preferably,tab 46 extends fromend 42 of theguide 30 for insertion intoslot 45 in thepanel 14 to secure theguide 30 to the support structure inside the AHU blower compartment. It is also preferable that a tab 48 extends fromend 40 at an angle with respect to the base 32 to abut thesupport structure 20 upon installation of theguide 30 inside the AHU blower compartment 10. Afastener 50, such as a screw or bolt, is actuated to secure theguide 30 to thesupport structure 20. - It is appreciated that in
FIG. 1 theguide 30 is shown having a unitary construction including a pair of channels for receiving corresponding structure of theheat kit 52. However, theguide 30 can be constructed of two or more pieces, and can be any suitable construction that slidably engages theheat kit 52 so that theheat kit 52 is not damaged during installation inside the AHU blower compartment 10, irrespective the orientation of theheat kit 52. - Both the
opening 28 andslot 45 formed in thepanel 14 of the AHU blower compartment 10, as well as the aperture for securing tab 48 ofguide 30 to thesupport member 22 if desired, can be formed during manufacture of the AHU blower compartment 10. A plate (not shown) can then be installed over opening 28 if the AHU as manufactured is not to include the heat kit. Alternately, a template (not shown) provided with each heat kit can be used to locate and subsequently form theopening 28 andslot 45 inpanel 14 of the AHU blower compartment 10. - Referring to
FIGS. 1-6 ,heat kit 52 includes a base 54 havingadjacent base portions respective components base portion 56 includes aretainer 60 for abutting thesupport structure 20 when theheat kit 52 is in an installed position (seeFIG. 8 ). Theretainer 60 includes agap 61 so thatretainer 60 does not interfere with the tab 48 of theguide 30.Components heat kit 52.Components electrical connection 72, as required. Further, one of thecomponents wiring harness 74 andconnector 76 to connect with an electrical power source (not shown). Preferably,heater 62 extends substantially perpendicular frombase portion 58 so that when theheater 62 is installed in the AHU compartment 10,heater 62 extends through theopening 28 of the AHU compartment and is in fluid communication with the air provided by theblower 12 for providing heated air to the structure.Heater 62 typically includes a plurality ofsupports 66 secured to thebase portion 58, thesupports 66 supporting electric resistance coils 64 that become heated when electrical current is applied to thecoils 64. - To secure the
heat kit 52 to theguide 30, abracket 78 is secured to the bottom surface of thebase portion 56 adjacent to the juncture ofbase portions Bracket 78 includes a base 80 having opposedlegs 82 extending substantially perpendicular to the juncture ofbase portions leg 82 has aleg portion 84 extending away from thebase 80, such as perpendicular from thebase 80, and aflange 86 extending fromleg portion 84 away from thebase 80.Flanges 86 preferably are substantially parallel with thebase portion 56. The ends of theflanges 86 adjacent to the juncture between thebase portions chamfer 88 to more easily facilitate the engagement of theflange 86 with theguide 30. To install theheat kit 52, thechamfered end 88 of theflanges 86 are directed toward and between theoversized projections 44, which greatly assists in aligning theflanges 86 with thechannels 38 of theguide 30. Theprojections 44 may be parallel to each other or non-parallel to each other, such as defining a V-shape, to provide a “funnel effect” to further assist in bringing theflanges 86 into alignment with thechannels 38. Once theflanges 86 are disposed between theprojections 44 with eachchamfered end 88 of aflange 86 adjacent to a correspondingchannel 38, the orientation of thebase portion 56 must only be slightly pivoted about anaxis 89 defined by the chamfered ends 88 to sufficiently align theflange 86 with the correspondingchannels 38 to permit insertion of theflanges 86 inside thechannels 38. Once theflange 86 insertion begins to occur, theheat kit 52 is properly aligned so that theheater 62 can be directed through theopening 28 untilbase portion 58 of theheat kit 52 abuts thepanel 14 of the AHU compartment, thebase portion 58 completely covering and overlapping theopening 28 as shown inFIG. 8 . -
FIG. 7 shows theheat kit 52 being partially installed after theflanges 86 and thechannels 38 have been partially engaged, whileFIG. 8 shows theheat kit 52 in a fully installed position. To secure theheat kit 52 in its installed position, fasteners (not shown) can be installed through either or both of thebase portions base 54 of theheat kit 52 and supportingstructure panel 14 of the AHU compartment wall. - In an alternate construction to
bracket 78, referring toFIG. 4 , aU-shaped rod 90 having opposedlegs 92 separated by aweb 94 is secured at a predetermined spacing from the bottom ofbase portion 56 for engagingguide 30. Each end of thelegs 92 extends through anaperture 98 formed inretainer 60. Preferably, astandoff 100, or two or more ofstandoffs 100, is interposed between theweb 94 and thebase portion 56 to secure theweb 94. To install theheat kit 52 in the AHU compartment 10, the junctures of thelegs 92 andweb 94 are directed toward and between theoversized projections 44, which greatly assists in aligning thelegs 92 with thechannels 38 of theguide 30. Once the junctures of thelegs 92 andweb 94 are disposed between theprojections 44 with each juncture of thelegs 92 andweb 94 adjacent to a correspondingchannel 38, the orientation of thebase portion 56 must only be slightly pivoted about theweb 90 to sufficiently align thelegs 92 with the correspondingchannels 38 to permit insertion of thelegs 92 inside thechannels 38. Once theleg 92 insertions begin to occur, theheat kit 52 is properly aligned so that theheater 62 can be directed through theopening 28 untilbase portion 58 of theheat kit 52 abuts thepanel 14 of the AHU compartment 10. - Referring to
FIG. 5 , a pair ofrod members 102 is used to guideheat kit 52 inside the AHU compartment 10. Eachrod member 102 includes a substantiallystraight section 110 that extends to atransition portion 106 having anend 104 that is inserted into anaperture 98 formed in theretainer 60. Opposite thetransition portion 106, the substantiallystraight section 110 extends to atransition portion 108 that is secured to thebase portion 56 by methods known in the art, including adhesives, welding, or insertion into a recess formed in thebase portion 56. To install theheat kit 52 in the AHU compartment, the junctures of thetransition portions 108 androd members 102 are directed toward and between theoversized projections 44, which greatly assists in aligning thestraight portions 110 with thechannels 38 of theguide 30. Once the junctures of thetransition portions 108 andstraight portions 110 are disposed between theprojections 44 with each juncture of thetransition portions 108 andstraight portions 110 adjacent to a correspondingchannel 38, the orientation of thebase portion 56 must only be slightly pivoted about an axis 111. Pivoting about axis 111, which is defined by the juncture of thetransition portions 108 andstraight portions 110, sufficiently aligns thestraight portions 110 with the correspondingchannels 38 to permit insertion of thestraight portions 110 inside thechannels 38. Once thestraight portion 110 insertions begins to occur, theheat kit 52 is properly aligned so that theheater 62 can be directed through theopening 28 untilbase portion 58 of theheat kit 52 abuts thepanel 14 of the AHU compartment, thebase portion 58 completely covering and overlapping theopening 28 as shown inFIG. 8 . - Referring to
FIG. 6 , another embodiment of theheat kit 52 includes a pair ofopposed legs 112 extending from the bottom ofbase portion 56. Eachleg 112 includes aleg portion 114 that extends away from thebase portion 56, and flange 116 that extends from theleg portion 114 away frombase portion 56. Thelegs 112 provide aunitary base 54 construction. Each flange 116 is configured to engage a correspondingchannel 38 to secure theheat kit 52 to theguide 30, the flanges 116 preferably including achamfer 118 adjacent the juncture ofbase portions channel 38 in a manner previously discussed. - Those skilled in the art can appreciate that although the
guide 30 is shown as a component that is installed in the AHU compartment, the guide can be incorporated into the existingsupport structure transverse members guide 30 as shown requires the heat kit to be inserted inside the AHU compartment, the guide can be extended outside the AHU compartment to permit the heat kit to engage the guide exterior of the AHU compartment, the guide being usable to guide the heat kit to its installed position. The extended portion of the guide could be removable if desired. - It is to be understood that
base 54 andbase portion 56 can have unequal widths. Further, whileretainers channels 38 onguide 30 that face each other (i.e.,FIG. 1 ), as shown inFIG. 9 , the channel arrangement can also face away from each other. For example, guide 130 includes a base 132 having opposedlegs 134. Eachleg 134 has aleg portion 136 extending away from thebase 132, such as perpendicular to thebase 132 and aflange 138 extending fromleg portion 136 away frombase 132.Flanges 138 preferably are substantially parallel with thebase 132.Bracket 178, which is otherwise similar tobracket 78, includesflanges 186 that differ fromflanges 86 in that flanges 186 extend toward each other. Collectively, eachflange 186,leg portion 84 andbase 80 defines achannel 188. Eachflange 138 of thebracket 130 slidably engages acorresponding channel 188 to secure thebase portion 56 of theheat kit 52 to theguide 130. - In a further alternate guide construction as shown in
FIG. 10 ,guide 230 includes a base 232 having a leg 234 extending away from thebase 232. Leg 234 terminates at a cap 236 having flange portions 238 extending away from leg 234. Each flange portion 238 slidably engages acorresponding channel 188 to secure thebase portion 56 of theheat kit 52 to theguide 230. - While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (28)
1. A heating arrangement for use in an air handling unit comprising:
at least one heating device to be disposed in the airflow of an air handling unit;
a base configured to support the at least one heating device;
a first guide member to be mounted on a structural component inside the air handling unit;
a second guide member mounted on the base, the second guide member being configured to engage the first guide member; and
wherein engagement of the first guide member and the second guide member positions the at least one heating device to an installed position inside the air handling unit.
2. The heating arrangement of claim 1 wherein the first guide member has at least one channel.
3. The heating arrangement of claim 1 wherein the first guide member has at least one projection.
4. The heating arrangement of claim 3 wherein the first guide member has at least one channel, the at least one channel being adjacent to the at least one projection.
5. The heating arrangement of claim 4 wherein the at least one projection has a pair of substantially parallel projections.
6. The heating arrangement of claim 4 wherein the at least one projection has a pair of projections disposed in a V-shape.
7. The heating arrangement of claim 2 wherein the second guide member has at least one flange for engaging the at least one channel.
8. The heating arrangement of claim 2 wherein the second guide member has at least one rod member for engaging the at least one channel.
9. The heating arrangement of claim 7 wherein the at least one flange is unitary with the base.
10. The heating arrangement of claim 7 wherein the at least one flange has a chamfered edge for engaging the at least one channel.
11. The heating arrangement of claim 7 wherein the at least one flange includes a pair of inwardly directed flanges.
12. The heating arrangement of claim 7 wherein the at least one flange includes a pair of outwardly directed flanges.
13. The heating arrangement of claim 1 wherein the second guide member has at least one projection.
14. The heating arrangement of claim 1 wherein engagement of the first and second guide member is sliding engagement.
15. A method of installing a heating arrangement in an air handling unit, the steps comprising:
providing at least one heating device to heat an airflow of an air handling unit; providing a base configured to support the at least one heating device, the base including a first guide member;
mounting a second guide member on a structural component inside the air handling unit;
aligning the first guide member with the second guide member to engage the second guide member; and
directing the first guide member into engagement with the second guide member to position the at least one heating device in an installed position inside the air handling unit.
16. The method of claim 15 wherein the second guide member includes at least one channel.
17. The method of claim 15 wherein the second guide member includes at least one projection.
18. The method of claim 17 wherein the second guide member has at least one channel, and the step of aligning the first guide member with the second guide member includes placing the at least one channel adjacent the at least one projection.
19. The method of claim 18 wherein the at least one projection has a pair of substantially parallel projections.
20. The method of claim 18 wherein the at least one projection has a pair of projections disposed in a V-shape.
21. The method of claim 16 wherein the first guide member includes at least one flange for engaging the at least one channel.
22. The method of claim 16 wherein the first guide member includes at least one rod member for engaging the at least one channel.
23. The method of claim 21 wherein the at least one flange is unitary with the base.
24. The method of claim 21 wherein the at least one flange has a pair of inwardly directed flanges.
25. The method of claim 21 wherein the at least one flange has a pair of outwardly directed flanges.
26. The method of claim 22 wherein the step of directing includes directing the first guide member into engagement with the second guide member exterior of the air handling unit.
27. The method of claim 15 wherein the first guide member includes at least one channel.
28. The method of claim 15 wherein the step of directing includes directing the first guide member into sliding engagement with the second guide member.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/284,873 US20070116442A1 (en) | 2005-11-22 | 2005-11-22 | Air handler heat kit installation and mounting |
CA002528377A CA2528377C (en) | 2005-11-22 | 2005-11-29 | Air handler heat kit installation and mounting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/284,873 US20070116442A1 (en) | 2005-11-22 | 2005-11-22 | Air handler heat kit installation and mounting |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070116442A1 true US20070116442A1 (en) | 2007-05-24 |
Family
ID=38053647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/284,873 Abandoned US20070116442A1 (en) | 2005-11-22 | 2005-11-22 | Air handler heat kit installation and mounting |
Country Status (2)
Country | Link |
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US (1) | US20070116442A1 (en) |
CA (1) | CA2528377C (en) |
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Also Published As
Publication number | Publication date |
---|---|
CA2528377A1 (en) | 2007-05-22 |
CA2528377C (en) | 2008-02-05 |
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