Lennox International Inc PWC18E10.7, PWC24E9.2, PWC302, PWC24E14.7, PWC24E4.8 Pan No 307g0F089

Page 36

Pan No.

307g0F089

Date 6-1_9

Supemedes 30790G082Page T of 12

INSTALLATION

Electrical Connections

All wiring to unit must comply with the national Electrical Code NFPA No. 70 or local codes, where they prevail.

ANY ALTERNATION OF INTERNAL WIRING CAN VOID UNDERWRITER'S APPROVAL, ARI CER- TIFICATION AND MANUFACTURE'S LIMITED WARRANTY.

The series and rating plates indicate the operating voltages, phase, ampacities and maximum fuse size and electric heater ratings. Units must never be installed where voltage exceeds 110% of higher voltage indicated on rating plate, or less than the minimum operating voltage on rating plate,

Ratings and BTU output are based on 230 V, 60 HZ supply. Voltages other than this rated voltage will alter the BTU output of this unit. For specific ratings at voltages or frequencies other than that designated con- tact your distributor or the manufacture.

FAILURE OF THE COMPRESSOR AS A RESULT OF OPERATION ON IMPROPER VOLTAGE VOIDS THE COMPRESSOR REPLACEMENT WARRANTY.

Multiple power supply connections must be used when total unit amp draw Is over 48 amps. If multiple power supply connections are used, separate fused disconnects must be Installed for each circuit between the main panel and the supply terminals In the unit.

Circuit No. 1, terminals L1 and L2 on the terminal block Is always used to supply power to the heat pump section. See Figure 3, 4, and 5.

Circuit No. 2, terminals L3 and L4 on terminal block (units up to 11.0 KW) or fuse block (units over 11.0 is always used to supply power to electdc heaters.

Single entry supply may be used on units, when total amp draw, (heat pump plus heaters) Is less then 48 amps, and is not In violation of prevailing electrical codes.

Units with 7.2 KW heaters or less are supplied with Internal jumpers between 1.1& 1.3, and L2 & L4 for single entry supply. Remove jumpers between L1 & I..3 and 1.2 & L4 when multiple entry supply is to be used.

Fuse and wire sizing must be in accordance with prevailing electrical codes. See Product Specification sheets or Unit Sedes and Rating Plate for ampacities end maximum fuse.

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Contents IIIIIIIIIIIIll PWCInstallation EuctricalwiringPWC Drain Installation CAUT,ONApplication Limitations AirFilterMinimum Required Surface Area for Disposable Filters Table tDefrost Control HeatingDefrost Cycle Conducting any maintenance procedures SuctionConnection Diagram PWC with 5, 7 or 10 KW Heat Strip CAPACrR-RUNConnection Diagram PWC with 15 KW Heat StripConnection Diagram PWC with No Heat Strip Fin-r==Warranty Begins Warranty on Replacement ComponentsInstalled by Age Lennox International CompanyFrontof Z9- -,4 Instailing Wall Sleeve from InsideArmstrong AIR Conditioning INC LENNOXInternationalInc. CompanyPWC 242 A-1A GeneralInspectionof Shipment Electric HeatingWith Wall Sleeve CondensatedrainPA.T.OI. ,,,,,,.0 I, 0,I I Suerseoesi 00I PAE,O,O InstructionforsupportingpwcunitsLimitations Cool HeatDuctwork AIR FilterPowerand Controlwiring Mooel noSequenceof Unit Operation Idnstallation Electricheating Location PART.OI DArEI 4-5-9I Supersedes NEWPA,TNOI 4tt94OOB4I DA EI 41594SUPERSEDESI Newi page OFtO Partno Modelno FilterareaminDefrostcontrolsettingdefrosttest Cycletime T2 = 60 MinutesSystem Performance PWC SuctionsuperheatNormal Maintenance Physicaland Electricaldata9Do9IOA.El .-5-lgSUE.SEOESl .EW I ,GEgOF,O Bujeiiiiii Iiiiii Installation Forward Keep this Manual in a Safe Place for Ready ReferencePartNo SOF089 Supersedes 30790G082 Table of Contents Installation Maintenance and Service30?90F089 Date 149 Supersedes Operation Instructions307g0F089 Date Supersedes 30790G082Pageof12 Freezing Pan No 307g0F089 Date Single Entry SupplyPWGI8E7.2 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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