Lennox International Inc PWC24E4.8, PWC24E9.2, PWC302, PWC24E14.7 Caut,On, PWC Drain Installation

Page 3

If the unit is installed in a residential garage, it must be located or protected to avoid physical damage by vehicles. The unit must be installed so that no electrical compo- nents are exposed to water.

I

[A CAUT,ON]

This unit must be installed level to allow for

proper drainage of the chassis base pan and

unit drain pan.

Installing With a Wall Sleeve

[ _, CAUTION l

The sleeve is not intended as the sole support for the unit. An additional support must be provided near the return opening on the unit for adequate support. The use of vibration isolation material between the unit and the

support is recommended.

Refer to the installation instructions packed with the wall sleeve and Figure 1 for guidance in assembly and mount- ing 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 ordi- nances 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. Con- nect 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.

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Contents IIIIIIIIIIIIll Euctricalwiring PWCInstallationCAUT,ON PWC Drain InstallationTable t Application LimitationsAirFilter Minimum Required Surface Area for Disposable FiltersDefrost Control HeatingDefrost Cycle Suction Conducting any maintenance proceduresCAPACrR-RUN Connection Diagram PWC with 5, 7 or 10 KW Heat StripPWC with 15 KW Heat Strip Connection DiagramFin-r== Connection Diagram PWC with No Heat StripWarranty Begins Warranty on Replacement ComponentsInstalled by Lennox International Company AgeFrontof Instailing Wall Sleeve from Inside Z9- -,4LENNOXInternationalInc. Company Armstrong AIR Conditioning INCElectric Heating PWC 242 A-1AGeneral Inspectionof ShipmentCondensatedrain With Wall SleeveInstructionforsupportingpwcunits PA.T.OI. ,,,,,,.0 I, 0,I I Suerseoesi 00I PAE,O,OAIR Filter LimitationsCool Heat DuctworkPowerand Controlwiring Mooel noSequenceof Unit Operation Idnstallation Electricheating Location NEW PART.OI DArEI 4-5-9I SupersedesPA,TNOI 4tt94OOB4I DA EI 41594SUPERSEDESI Newi page OFtO Modelno Filterareamin PartnoPWC Suctionsuperheat Defrostcontrolsettingdefrosttest CycletimeT2 = 60 Minutes System PerformancePhysicaland Electricaldata Normal Maintenance9Do9IOA.El .-5-lgSUE.SEOESl .EW I ,GEgOF,O Bujeiiiiii Iiiiii Installation Keep this Manual in a Safe Place for Ready Reference ForwardPartNo SOF089 Supersedes 30790G082 Operation Instructions Table of Contents InstallationMaintenance and Service 30?90F089 Date 149 Supersedes307g0F089 Date Supersedes 30790G082Pageof12 Freezing Pan No 307g0F089 Multiple Entry Supply DateSingle Entry Supply PWGI8E7.2Thermostat 30790F089 Date Supersedes 30790G082 Operation Instructions 30790F089 Date 1o89 Supersedes 30790G082

PWC18E14.7, PWC18E4.8, PWC182, PWC24E7.2, PVVC24ElO.7 specifications

Lennox International Inc. is a leading provider of innovative heating, ventilation, and air conditioning (HVAC) solutions. Among its diverse range of products, the company offers various models of packaged water chillers designed for efficiency, performance, and reliability in commercial applications. The PWC18E10.7, PWC302, PWGI8E7.2, PWC182, and PWC242 are notable examples of Lennox's commitment to quality and advanced technology in packaged water chillers.

The Lennox PWC18E10.7 is a high-efficiency chiller featuring a compact design, making it suitable for space-constrained environments. With a cooling capacity of 18 tons, this model utilizes a scroll compressor for reliable operation and low energy consumption. Its advanced microchannel coil technology enhances heat transfer efficiency, allowing for better cooling performance with a reduced refrigerant charge.

The PWC302 is another robust offering, boasting a cooling capacity of 30 tons. This model is designed for outdoor installation, equipped with fully controllable variable-speed fans that adapt to varying load conditions. The PWC302 is notable for its low noise levels, making it ideal for applications where sound restrictions are paramount. Its advanced controls also provide flexibility in managing energy usage, further enhancing its appeal for eco-conscious businesses.

The PWGI8E7.2 is distinguished by its inverter-driven compressor, which allows for precise temperature control and enhanced efficiency. This model, with an 8-ton cooling capacity, is particularly suited for environments requiring consistent cooling. Its compact footprint coupled with high energy efficiency ratings means it can be easily integrated into existing systems while ensuring optimal performance.

The PWC182, another capable unit, is designed with a focus on durability and ease of maintenance. Features such as a corrosion-resistant cabinet and user-friendly access panels make it a practical choice for facilities managers. The PWC182 operates quietly and efficiently, ensuring minimal disruption in operational settings.

Lastly, the PWC242 provides a larger cooling capacity of 24 tons, making it ideal for medium to large commercial spaces. Its advanced refrigerant management system optimizes performance while meeting environmental regulations. All these models incorporate advanced electronic controls, which enhance operational efficiency and provide real-time monitoring capabilities, allowing users to optimize energy consumption based on actual demand.

In summary, Lennox International offers a range of advanced packaged water chillers, including models like the PWC18E10.7, PWC302, PWGI8E7.2, PWC182, and PWC242. Each model features cutting-edge technologies aimed at delivering high efficiency, reliability, and ease of use, making them suitable choices for commercial applications seeking sustainable and effective HVAC solutions.
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