Lennox International Inc PWC24E7.2, PWC24E9.2, PWC302 30790F089 Date 1o89 Supersedes 30790G082

Page 41

Part No.

30790F089

Date,

6-1o89

Supersedes

30790G082

Page 11

of 12

OPERATION INSTRUCTIONS

The following instructions are to be followed to obtain years of trouble free operation of your year-around comfort system.

To start unit turn on main power (may have two disconnect switches). If the outdoor temperature is below indoor temperature, the main power should be turned on 24 hours before starting unit in order to assure no liquid refrigerant is in the compressor crankcase, and to prevent valve damage of compressor.

Operation of this unit is automatic and will provide heating or cooling depending on the setting of the thermostat.

Heating Operation

1.Set thermostat system switch to "HEAT".

2.Set thermostat lever to desired temperature.

3.Set fan switch to "ON" for continuous indoor blower operation or to "AUTO" for indoor blower to cycle corresponding with thermostat cycling.

Cooling Operation

1.Set thermostat system switch to "(_OOU'.

2.Set thermostat lever to desired temperature.

3.Set fan switch to "ON" for continuous indoor blower operation or to "AUTO" for indoor blower to cycle corresponding with thermostat cycling.

System Shutdown

1.For temporary or short periods of shut-down, set thermostat system to 'OFF" and fan switch to "AUTO".

2.For a prolonged period of shut-down, set thermostat system switch to "OFF" and fan switch to "AUTO". Turn off electric power supply. (Two disconnect switches may supply unit.)

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Contents IIIIIIIIIIIIll Euctricalwiring PWCInstallationCAUT,ON PWC Drain InstallationAirFilter Application LimitationsMinimum Required Surface Area for Disposable Filters Table tDefrost Cycle Defrost ControlHeating 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 StripInstalled by Warranty BeginsWarranty on Replacement Components Lennox International Company AgeFrontof Instailing Wall Sleeve from Inside Z9- -,4LENNOXInternationalInc. Company Armstrong AIR Conditioning INCGeneral PWC 242 A-1AInspectionof Shipment Electric HeatingCondensatedrain With Wall SleeveInstructionforsupportingpwcunits PA.T.OI. ,,,,,,.0 I, 0,I I Suerseoesi 00I PAE,O,OCool Heat LimitationsDuctwork AIR FilterSequenceof Unit Operation Powerand ControlwiringMooel no Idnstallation Electricheating Location NEW PART.OI DArEI 4-5-9I SupersedesPA,TNOI 4tt94OOB4I DA EI 41594SUPERSEDESI Newi page OFtO Modelno Filterareamin PartnoT2 = 60 Minutes Defrostcontrolsettingdefrosttest CycletimeSystem Performance PWC SuctionsuperheatPhysicaland 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 Maintenance and Service Table of Contents Installation30?90F089 Date 149 Supersedes Operation Instructions307g0F089 Date Supersedes 30790G082Pageof12 Freezing Pan No 307g0F089 Single Entry Supply DatePWGI8E7.2 Multiple Entry SupplyThermostat 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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