Replacement Parts List No. 055227700 Revision A 03/2003 Westinghouse Rooftop Heating and Cooling IK 180 Vintage 0, 1, 2, 3, 4 Last Manufactured: 1975 To find your Daikin Applied parts distributor, call 1-800-377-2787 or visit www.daikinapplied.com
Contents Parts List Revision History... 3 Nomenclature Unit Model Number... 4 Serial Number... 4 Basic Cooling Unit Assembly- Compressor, Condenser, Evaporator Diagram... 5 Components- Compressors and Accessories... 6 Components- Evaporator Section... 7 Components- Condenser Section... 8 Main Control Box... 9, 10 Electric Heat Components- Heaters, Temperature Cutout, Fused Link...11 Accessory Packages...11 Accessory Thermostat...11 Furnace- Natural Gas Until 3/1978... 12 Furnace- Natural Gas Model PV-400D- 3/1978 and Later... 13 Damper and Economizer... 14 RPL 552277 / Page 2
Parts List Revision History Revision Date Description - 1/78 Updated from new RPL issued 10/73. A 03/03 Reformatted for electronic distribution. Added Parts List Revision History. Added model number and serial number nomenclature. Part numbers converted to current McQuay mitrol format. Added new art. Page 6- Ref. # 1 p/n for vintages 0-2 208/230V and 380/400/460V changed to CD090A0P & CD090A0Q respectively; p/n for vintages 3,4 208/230V and 380/400/460/575V changed to 802003282, 802003275 and 802003279 respectively. Ref. # 2 Added mounting kit for BR compressors. Ref. # 5 Added p/n for BR compressor CC Heaters 070185501, 070185502 and 049768304 for voltages 208/230V, 380/400/460V and 575V respectively. Page 7-2HP motor pulley 208/230/380/400/460V and 575V units changed to 000378300 and 000673900 respectively; 2HP fan pulley p/n changed to 000371200; 2HP belt for vintages 0,1,2 p/n corrected to 735028977; 3HP fan pulley p/n changed to 0002740330; 3HP motor pulley p/n changed to 000840700; 5HP motor p/n changed to 802024342; 230/460V motor p/n changed to 020950700; 5HP motor pulley p/n changed to 000840700; Fan wheel p/n changed to 073359801. Page 8- Ref. # 4A p/n changed to 735010332. Ref. # N/S steel washer p/n changed to 040500316. Page 10- Ref. # 1 fuse holder 400/460/575v vintages 3,4 p/n changed to 023780219. Ref. # 2 p/n changed to 025860508. Ref. # 5,6 p/n changed to 735021306. Ref. # 9 p/n changed to 047354103. Ref. # 9A p/n changed to 047354102. Ref. # 10 p/n changed to 024578800. Ref. # 13 p/n changed to 037516404. Page 11- Electric Heater fuses 240V, 480V p/n changed to 025860513 and 025860408 respectively. Page 12- Ref. # 9 p/n changed to 776375913. Daikin Applied, 13600 Industrial Park Blvd., P.O. Box 1551, Minneapolis, MN 55440 (763) 553-5330 RPL 552277 / Page 3
Nomenclature Unit Model Number IK 180 A 4 V Unit Type IK= Rooftop Combination Heat & Cool- Westinghouse Capacity 180= 18,000 BTU Nominal Heater Code A= Cooling Only B= 1- Stage Furnace, Aluminized Heat Exchanger C= 2- Stage Furnace, Aluminized Heat Exchanger D= 1- Stage Furnace, Stainless Steel Heat Exchanger E= 2- Stage Furnace, Stainless Steel Heat Exchanger G= 1- Stage Electric Heat: 16 KW Nominal K= 2- Stage Electric Heat: 32 KW Nominal P= 3- Stage Electric Heat: 48 KW Nominal Q= 4- Stage Electric Heat: 64 KW Nominal Voltage N= 200/60/3 V= 230/60/3 R=460/60/3 D=575/60/3 F=380/400/50/3 Vintage 0 1 2 3 4 Serial Number A R 1234 Month of Manufacture A= Jan. E= May I= Sep. B= Feb. F= Jun. J= Oct. C= Mar. G= Jul. K= Nov. D= Apr. H= Aug. L= Dec. Serial Number Year of Manufacture H= 1963 M= 1968 R= 1973 W= 1978 I= 1964 N= 1969 S= 1974 X= 1979 J= 1965 O= 1970 T= 1975 Y= 1980 K= 1966 P= 1971 U= 1976 Z= 1981 L= 1967 Q= 1972 V= 1977 A= 1982 RPL 552277 / Page 4
Basic Cooling Unit Assembly Compressor, Condenser, Evaporator Diagram 9C 9B 9A Control Box 5 8 6 7 7A 10 2 1 3 4 RPL 552277 / Page 5
Basic Cooling Unit Assembly Compressors and Accessories Components Ref. Description Specification Part Vintage No. Number 0,1,2 3,4 1 Compressor 208/230/60/3 CD090 CD090A0P 2 380/400/50/3 & 460/60/3 CD090 CD090A0Q 2 Compressor 1 208/230/60/3 BRE2-0750-TFC 802003282 2 380/400/50/3 & 460/60/3 BRE2-0750-TFD 802003275 2 575/60/3 BRE2-0750-TFE 802003279 2 2 Mounting Components- CD Compressor 1 Bushing- Neoprene 735038135 8 Spacer 735224901 8 Washer- Neoprene 735043539 8 Washer- Steel 735043428 8 Cap Screw 735033221 8 Mounting Components- Retrofit (BR) Compressor 1 Mounting Kit 735074310 2 Mounting Components- CH Compressors Bushing- Neoprene 735038159 8 Spacer 735024606 8 Washer- Neoprene 735043539 8 Washer- Steel 735043428 8 Cap Screw 735033223 8 3 Crankcase Heater- Retrofit (BR) Compressors 230V 070185501 2 480V 070185502 2 575V 049768304 2 Crankcase Heater- CD Compressors 230V- CD Compressors 735064417 2 460V- CD Compressors 735064418 2 Crankcase Heater- CH Compressors 230V- CH Compressor 744316301 2 460V- CH Compressor 744316302 2 575V- CH Compressor 744316303 2 4 High Pressure Cutout 1HP & 2HP 735001622 2 2 5 Thermostat- Low Refrigerant Temperature RT 744148502 1 1 N/S Motor Protector- Retrofit (BR) Compressors 071-0528-02 2 N/S Transformer 200V to 230V 735003583 N/A 1 380/400/460V to 230V 735009441 1 1 575V to 230V 735009425 N/A 1 N/S= Not Shown on Diagram. N/A= Not Applicable. 1 These Copeland BR retrofit compressors require repiping and new mounting. If an original Westinghouse CH (vintages 3, 4) compressor is being retrofitted, order a mounting kit (Ref. # 2) as well. RPL 552277 / Page 6
Basic Cooling Unit Assembly Evaporator Section Components Ref. Description Specification Part Vintage No. Number 0,1,2 3, 4 6 Coil- 2 Circuit w/distributors & TXV 759799501 1 2 1 7 Expansion Valve 735045052 2 2 7A Distributor- Upper 735061510 1 1 Distributor- Lower 735051330 1 1 N/S Orifice- Distributor 735051530 2 2 N/S Wheel- Evaporator Fan 073359801 2 2 N/S Shaft- Evaporator Fan 735054233 1 1 N/S Bearing- Fan Shaft 735014103 2 2 N/S Bearing Bracket- Fan Shaft 735212611 2 2 N/S Housing- Evaporator Fan Drive End 735219717 1 1 Opposite Drive End 735219718 1 1 N/S Inlet Ring, Evaporator Fan- Both Housings 776179105 2 2 N/S Fan Cutoff- Both Housings 724755603 2 2 N/S Fan Motor- 2 HP 1750 RPM 200/60/3 735010615 N/A 1 230/460/60/3 & 380/400/50/3 735010611 1 1 575/60/3 735010916 N/A 1 Motor Pulley- 2 HP 200/230/380/400/460V Motor 1VP56 X 5/8" 000378300 1 1 Motor Pulley- 2 HP 575V Motor 1VP56 X 7/8" 000673900 N/A 1 Fan Pulley- 3 HP Motor BK80 X 1" 000371200 1 1 Belt- 2 HP Motor B53 735028977 1 1 N/S Fan Motor- 3 HP 1750 RPM 200/60/3 735010910 N/A 1 230/460/60/3 735010908 1 1 Motor Pulley- 3 HP Motor 1VP56 X 1-1/8" 000840700 1 1 Fan Pulley- 3 HP Motor BK80 X 1" 000371200 1 1 Belt- 3 HP Motor 735028972 1 1 N/S Fan Motor- 5 HP 1750 RPM 200/60/3 802024342 N/A 1 230/460/60/3 020950700 1 1 Motor Pulley- 5 HP Motor 1VP56 X 1-1/8" 000840700 1 1 Fan Pulley- 5 HP Motor BK70 X 1" 735037719 1 1 Belt- 5 HP Motor 200V Units 735028972 N/A 1 230/460V Units 735077517 1 1 N/S= Not Shown on Diagram. N/A= Not Applicable. 2 This is a retrofit coil and includes new TXV, distributors and orifices. The original coil used upper distributor p/n 735051322, lower distributor p/n 735051314 and orifices 735051506. RPL 552277 / Page 7
Basic Cooling Unit Assembly Condenser Section Components Ref. Description Specification Part Vintage No. Number 0,1,2 3, 4 8 Propeller- Condenser Fan 735023716 3 3 9A Motor- Condenser Fan All Voltages 735010332 3 3 9B Rain Shield- Condenser Fan Motor 735632001 3 3 9C Grille- Condenser Fan 735073510 3 Grille- Condenser Fan 735083902 3 10 Coils Upper Coil 759799401 1 3 1 Lower Coil 759799402 1 3 1 N/S Mounting Components- Condenser Fan Bracket- Motor 2- Arm Half 759642703 3 3 Bracket- Motor 1- Arm Half 759642704 3 3 Grommet 735038120 3 3 Washer- Steel 1-1/4" OD x 3/8" ID 735043279 3 3 Jam Nut 3/8" x 16 735030003 3 3 Washer- Steel 1" OD x 7/16" ID 040500316 3 3 Cap Nut 3/8" x 16 735030203 3 3 N/S= Not Shown on Diagram. N/A= Not Applicable. 3 The original coil was a single two circuit assembly. To replace an original coil both the upper and lower coils listed above are required. Minor piping is required for retrofit. RPL 552277 / Page 8
Main Control Box Diagram 2 1 4 Resistor 5 7 6 7 8 3B Fuses 1 HR 2 CR 5M........................ A 1 2 D 3 S 4 M R UC 112 2 HR 1 FR 11 12 13 2A 1A 3 3C _ UU AD56 789 16 1 CR 1 M 24V Fuse 3.2A 9 9A 10 2 M CAP 3A 3D ŽR Ž ŽH1 Ž ŽH2 Ž ŽC1 Ž ŽC2 Ž ŽG Ž ŽRM Ž ŽWM Ž ŽU Ž ŽX Ž TA 14 10L 17 20L 30L 40L 50L 60L CB 15 Ref. Sch. Description Specification Part Vintage No. Sym. Number 0,1,2 3, 4 1 Fuse Holder 200/230V 735003705 1 200/230V 735003714 1 400/460/575V 735003702 1 400/460/575V 023780219 1 1A Fuse Holder- 400/460/575V 735003721 N/A 1 2 Fuse- 200/230V 735045521 3 Fuse- 200/230V 025860508 3 Fuse- 400/460/575V 10 Amp 735045520 3 3 Fuse- 400'/460/575V 12 Amp 735045505 N/A 3 2A Fuse- 400/460/575V 15 Amp 735045510 N/A 1 N/A= Not Applicable. RPL 552277 / Page 9
Main Control Box Components, Continued Ref. Sch. Description Specification Part Vintage No. Sym. Number 0,1,2 3, 4 3 Power Block 735008001 1 1 3A Terminal Connection 735049602 3 Terminal Connection 735049606 3 3B Terminal Block 735040812 1 1 3C Terminal Block 735041132 2 Terminal Block 735084010 2 3D Terminal Block 735040710 1 Terminal Block 735040730 1 4 Resister- 50 OHM OHMITE 02000/E25-50A5 735003203 1 1 5 1HR, 2HR Relay- Heating 735021306 2 2 6 2CR Relay- Cooling 735021306 1 1 1FR Relay- Fan 735021306 1 1 7 Receptacle- Relay 735021317 4 4 8 5M Contactor- Indoor Fan Motor 735020606 1 1 9 Fuse Holder 24V 047354103 1 1 9A Adapter 047354102 1 1 10 Fuse 3.2A/24V 024578800 1 1 11 1CR Relay- Cooling 735020002 1 1 12 1M, 2M Contactor- Compressor 735085002 2 2 13 CAP Capacitor- Cond. Fan Motor 5.7MFD/ 370V 037516404 3 3 14 TA Thermostat- Low Ambient 735002135 1 1 15 10L- 60L Overload- Compressor 200/60/3 735085114 N/A 6 208/230/60/3 735009314 6 208/230/60/3 735085112 6 380/400/50/3 & 460/60/3 735009304 6 380/400/50/3 & 460/60/3 735009319 6 575/60/3 735085111 6 16 Transformer- Control 24V 45VA 735003501 1 1 17 CB Circuit Breaker.15 Amp 735018609 1 1 N/A= Not Applicable. RPL 552277 / Page 10
Electric Heat Components Heaters, Temperature Cutout, Fused Link Part Specification Part Description Number Booster Heater 240 V 735011354 480 V 735011355 Fuse Link Opens 283 F 735012414 Contactor 40 A @ 240 V 735085002 Thermostat- Limit 170 Open/120 Close 735001841 Buss Bar 735777701 Terminal Connector 735249604 Insulator 1-½" Long 735700702 2" Long 735700703 2-½" Long 735700704 Fuses 240 V, 50 A 025860513 480 V, 25 A 025860408 Fuse Clips 250 V 735004307 600 V 735004306 Accessory Packages Part Part Description Number Time Delay Relay Kit 744149003 Replacement Relay Only 735005920 Fuse Box Door Interlock- 230V 744028801 Replacement Solenoid 735488101 Fuse Box Door Interlock- 460V 744023802 Replacement Solenoid 735488102 Outdoor Thermostat to Stage Electric Heater 735659502 Replacement Thermostat 735002136 Anti- Short Cycling Device 735832102 Replacement Time Delay Relay 735005920 Remote Control Center- Less Potentiometer 735651002 Remote Control Center- With Potentiometer 735657001 Potentiometer- 270 OHM 735003207 Accessory Thermostat Part Part Description Number 1- Stage Cool Only 743884301 1- Stage Cool/1- Stage Heat 735079203 1- Stage Cool/2- Stage Heat 735079205 2- Stage Cool Only 735079208 2- Stage Cool/1- Stage Heat 735079204 2- Stage Cool/2- Stage Heat 735079206 RPL 552277 / Page 11
Furnace- Natural Gas Until 3/1978 2 1 9 3 8 4 7 6 5 Ref. Part Specification Part No. Description Number 1 Transformer- 24V BASO Y625A-01 776280716 2 Fan Switch (THR) M-H # S876A1024-2 776280715 3 Exhaust Switch (ER) M-H# R8225B-1007 776280714 4 Gas Valve- 1" BASO H91MG-3 776280720 5 Pressure Regulator 1- Stage Maxitrol RV53-1" 776280721 2- Stage Maxitrol SR600-1" 776280724 6 Limit Control Sterling # 20400D123-171 776280710 7 Manual Valve- Main 1" 776280708 8 Pilot Valve Essex Int'l 2 Pl. 776280722 9 Ignition Control BASO G19BG-5 776375913 N/S Pilot Burner BASO J640DHA-6721 776280711 N/S Pilot Orifice.021 776280725 N/S Thermocouple BASO K16CA30 776280712 N/S Igniter- Glow Coil BASO Y80AA-36 776280713 N/S Burner Orifice (11 required) #44 Drill 776280727 N/S Main Burner (11 required) order by description 4 N/S Switch- Pilot Pressure (GP) McQuay Norris 132-5CF 776280719 N/S Ventor Assembly- Motor & Fan 776280718 Fan Wheel Only 776280750 Fan Motor Only JB5032NV N/S Control- Ventor 776280717 N/S Heat Exchanger (2 Required) 250,000 BTUH Input Aluminized 776280703 Stainless Steel 776280704 N/S= Not Shown on Diagram. 4 Provide all information on furnace dataplate to ID burners. NOTE: There was an LP conversion kit (p/n 735777203) available at one time. The kit and all of its components are discontinued and no longer available. RPL 552277 / Page 12
Furnace- Natural Gas Model PV-400D 3/1978 and Later 13 14 11 15 3 16 12 6 9 8 10 17 2 1 4 5 7 Ref. Part Part No. Description Number 1 Gas Valve 776375910 2 Valve- Manual Shutoff 776375912 3 Ignition Control 776375913 4 Probe Assembly 776375914 5 Probe Lead 776375915 6 Pilot Valve- 100% Shutoff 776375916 7 Regulator 776375918 8 Transformer 776375919 9 Timer Switch 776375920 10 Relay- Draftor 776375921 11 Control- Ventor (Draftor Thermal Switch) 776375922 12 Limit Control- Main 776375923 13 Housing- Ventor Fan 776375924 14 Wheel- Ventor Fan 776375925 15 Motor- Ventor Fan 776375926 16 Capacitor- Ventor Fan Motor 776375927 17 High Limit Control 776375928 N/S Heat Exchanger Stainless Steel 776375906 Aluminized 776375905 N/S= Not Shown on Diagram. RPL 552277 / Page 13
Damper and Economizer 6 7 1 5 4 3 2 Ref. Part Specification Part No. Description Number 1 Relief Damper Assembly 759697301 Grille- Relief Damper 759696901 2 Return Air Damper Assembly 776269901 3 Damper Arm- Return Air Damper 744188402 4 Ball Joints- 2 Required 735012601 5 Damper Motor- Proportional Control Penn M80BCA-1, 20VA, 24V 735049103 6 Thermostat (2HT) MH L6008C; SPDT; 40-180 F 735005208 7 Thermostat (MAT) MH 7991A1004; 0-100 F 735009502 N/S Relay- SPDT RBM129990-1440 735020010 N/S Fresh Air Damper Assembly 759646604 Grille- Relief Damper 759696901 Damper Arm- Fresh Air Damper 744188401 N/S= Not Shown on Diagram. RPL 552277 / Page 14