Stimmen - 4, Durchschnittliche Bewertung: 3.8 ( )

Hersteller: Lennox International Inc. Dateigröße: 1.27 mb Dateiname: Unterrichtssprache:

Refer to the installation instructions packed with the wall sleeve and Figure 1 for guidance in assembly and mounting using a wall sleeve. Make sure the gaskets attached to the sleeve are not damaged. Seal the space between the wall sleeve and-the building opening with non-hardening caulking compound. The seal must be weathertight to prevent entrance of moisture and water into the building. Assure that the unit is completely seated against the gaskets on the wall sleeve. Installing Without a Wall Sleeve Refer to the following directions and Figure I for guidance in installing the unit without a wall sleeve: . Measure the size of the unit and provide an opening in an outside wall that will accept the unit. Local ordinances may require a steel lintel to support the wall above the opening. The opening must be square in all 4 corners. , Position the unit so that the grilles on the outside face of the unit are flush or extend beyond the face of the exterior wall, but not recessed more than 2" from the face of the building. Provide a support under the unit, inside the building. Make sure that the inside support does not block the return air. The unit should be installed level . Seal the space between the unit and building opening using a non-hardening caulking compound. The seal must be weathertight to prevent entrance of moisture and water into the building. Make sure the drain holes in the base are not plugged with caulking, Condensate Drain Install the plastic drain tube (furnished) over the 5/8" O.D. fitting welded to the center of the condensate pan. Connect the other end of the drain tube to trapped drain line (see Figure 2). The plastic drain connection to the chassis base is provided so that it may be disconnected from the permanent drain tubing in the base of unit in the event it becomes necessary to remove the chassis assetnbly. The drain line should pitch gradually downward at least 1" per 10 feet of horizontal run to the open drain. Be certain that the plastic drain tubing has free drainage and is not crimped or flattened at any bend. PWC Drain Installation Drain Pan_ Figure 2 Limitations The unit should be installed in accordance with all national and local safety codes. Limitations of the unit and appropriate accessories must also be observed. The unit must not be installed with any ductwork in the outdoor air stream. The outdoor fan is not designed to operate against any additional static pressure. Minimum and maximum operation conditions must be observed to assure maximum system performance with minimum service required. Refer to Table 1 on page 4 for the application limitations of the unit. Application Limitations Outdoor Ambient Air Temperature °F Minimum DB -Cooling Maximum DB Cool Heat 65 125 75 Indoor Ambient Air Temperature °F I Minimum Maximum DB/WB DB DB,_VB DB Cool Heat Cool Heat 62/57 50 90/72 80 Table t Ductwork Ductwork should be designed and sized according to the methods in Manual Q of the Air Conditioning Contractors of America (ACCA). It is recommended that supply and return duct connec-'_ s at the unit be made with flexible joints. 1ne supply and return air duct systems should be designed for the CFM and static requirements of the job. They should not be sized to match the dimensions of the duct connections on the unit. Supply duct flanges are shipped flat and must be bent up before attaching the supply duct. To connect the return duct to the unit, use a straight piece of duct 22" wide by 7" deep. Insert the duct into the return opening in the bottom of the unit. Flange the duct over the existing flanges around the opening inside unit. Make sure that all sides of the duct are flanged over to permit removal of cooling chassis if required. Use a flexible connection to attach remainder of return duct. The return duct should be sealed to the unit casing and terminate outside the space contai_ningthe furnace. The return duct must allow for the unit drain pan connections and drain tube. [ ACAUTION J no not screw into the side of the drain pan. AirFilter All indoor return air must be filtered. A permanent-type filter is furnished with the unit, located directly behind the access panel. Removing the panel permits access to the filter. The filter should be cleaned at least three times during each of the heating and cooling seasons, or more frequently if unusual conditions are encountered. To clean the permanent filter, shake filter to remove excess dirt and/or use a vacuum cleaner. Wash filter in soap or detergent water and replace after filter is dry. It is not necessary to oil the permanent filter after washing. If an installation is.made in which it is more desirable to mount the filter exterior to the unit, in the return duct work or elsewhere, the permanent filter can be used or replaced with a disposabl...

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