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McQuay_WHS_manual_Eng

Nomenclature Serial

Nomenclature Serial Number STN U 99 05 12345 00 Factory STN= Staunton Unit Engineering Revision Serial Number Month of Manufacture: Year of A= Jan. Manufacture: B= Feb. 99= 1999 C= Mar. 00= 2000 D= Apr. E= May F= Jun G= Jul H= Aug J= Sep. K= Oct. L= Nov. M= Dec. Unit Model Number- Nameplate WHS 220 A Vintage Nominal Tonnage 220 = 220 Tons Unit Type: WHS= Water- Cooled Screw Compressor Water Chiller Screw Chiller; WHS 220 Vintage A New 07/12 RPL 7000246 / Page 4

Nomenclature Unit Model Number- Complete WHS 220A 7 27 S E 2212216 2 R A ECC1 40 C 2012242 2 L A NCC1 065 B A Code 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 Y D Y G A V MYEY E 1 Y D Y Y 1 0A 00 Code 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 02 Size (in nominal tons) 220A= 220 Tons 'A' Vintage 03 Refrigerant 7= R410a 04 Voltage 27= 460/60/3 05 HGBP/Suction Valves S= Suction Valve (both compressors)/ No HGBP Y= No Suction Valves/ No HGBP 06 Evaporator Insulation E= Single Layer Insulation (.75") D= Double Layer Insulation 07 Evaporator Size Option 2212216= 22"D x 12'L, 216 tubes 08 Evaporator Water Passes 2= 2 Pass 3= 3 Pass 09 Evaporator Inlet Connection L= Left Hand R= Right Hand 10 Evaporator Head Options A= Victaulic B= Flanged 11 Evaporator Water Side Options ECC1= 150psig non-ASME 12 Evaporator Leaving Fluid Temperature 20°- 50°F 13 Condenser Insulation C= None J= .75" 14 Condenser Size 2012242= 20"D x 12'L, 242 tubes 2012267= 20"D x 12'L, 267 tubes 15 Condenser Water Passes 2= 2 Pass 16 Connection Water Inlet Connection L= Left Hand R= Right Hand 17 Condenser Head Options A= Victaulic B= Flanged C= Water Box Victaulic 2 Pass E= Water Box- Flanged 2 Pass 18 Condenser Water Side Design Options NCC1= 150psig non-ASME 19 Condenser Entering Fluid Temperature 65°- 95°F 20 Water Pressure Differential Switch Y= None E= Evap Only C= Cond Only B= E + C 23 Starting Options D= Delta-Delta S= Solid-State 24 Meter Selection Y= None A= Ammeter V= Voltmeter B= A + V 25 Ground Fault Protection G= Ground Fault Protection Y= None 26 Power Connection Option A= Main Circuit Breaker B= Single Point Power Block w 2/CB 27 Phase Voltage Monitor V= With Phase Reversal/Loss/Unbalance & Under/Over Voltage Montitor Control Y= None 28 MicroTech Options M Y E Y 1 2 3 4 1: Type of Control M= Microprocessor Control (Always M) 2: Reset Y= None A= Outside Ambient Air (includes sensor) 3: Language Options E= English M= Metric 4: Options Y= None M= with Modem C= with cooling tower bypass control & proportional motor current control B= M + C 29 Approval Listing E= ETL M= ETL/MEA D= C-ETL Y= None 30 Packaging 31 Always Y 32 Start Up 33 Warranty- Standard 34 Warranty- Extended 35 Always 1 36 Latest Code Sheet Revision 37. Revision 00= Latest Engineering Revision 21 Pressure Vessel Code A= ASME G= ASME/CRN 22 CRN- Condenser N= None 1= BC 3= Sask 4= Man 5= Ont 6= Que 7= NB 8= NS 9= PEI 0= NF U= Yukon Screw Chiller; WHS 220 Vintage A New 07/12 RPL 7000246 / Page 5