Dunham-Bush WCFX 30-30 Installation, Operation And Maintenance Manual Download | Manualshive

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Summary of Contents for WCFX 30-30

Page 1: ...ementary To Form No 6088A DUNNAM iUSM Products Thal Perform By people IM_io Care Water Cooled Rotary Screw Tandem Water Chillers SIS to 720 Tons MODEL WCFX 30 30 WCFX 30 33 WCFX 33 33 WCFX 33 36 WCFX...

Page 2: ...4 4 8 To Display Data Without Accessing Operation 24 4 4 9 Unit Schedule OfOperation 24 4 S CONTROL FUNCTIONS 25 4 5 l Chilled Water Pump Interlock And Flow Switch 26 4 5 2 Customer Control Interlock...

Page 3: ...oid damage to the unit the installation should be made by a qualified refrigeration mechanic It is assumed that the reader of this manual and those who install operate and maintain this equipment have...

Page 4: ...line drawings and physical data of the packages are shown in Figures 1 3 and Table 1 3 respectively Note especially the space and clearance requirements necessary for servicing the unit 1 4 APPLICATIO...

Page 5: ...THAT NO STRAIN IS PLACED ON UNIT COMPONENTS OTHER THAN AT CABLE CONNECTION POINTS 11 _ _ it 1 n _ l I i t hi _ _ _ _ _ 7 r i _ m J r __ _ u r r _ P 1 r t 1 _ _ _ r Note Protect unit from cables semocR...

Page 6: ...SIDE PSIG 300 300 300 300 300 WATER VOLUME GALLONS EACH 46 6 46 6 49 0 49 0 53 2 MIN GPM 1 PASS 436 436 482 482 526 MAX GPM 1 PASS 2138 2138 2358 2358 2580 CONDENSER MODEL 2 NOS J3 J3 K1 K1 K2 DESIGN...

Page 7: ...300 300 WATER VOLUME GALLONS 60 60 64 64 75 MIN GPM 1 PASS 436 436 482 482 526 MAX GPM 2 PASS 2138 2138 2358 2358 2580 CONDENSER MODEL 2 NOS J3 J3 K1 K1 K2 DESIGN PRESS WATER SIDE PSIG 150 150 150 150...

Page 8: ...3 J 4 50 60 Hz VESSEL l NG IH VI VESSH COO VAP CONO VAP CONN CONO CONN l J L K M R PASS 2 PASS I l J 1 0 eti 1 PAS S 2 P ASS R H 11 1 80 1ao I P t S 0 J PASS 11r 119 179 50 98 so i ee i B c 0 E f 99 9...

Page 9: ...aximum allowable rate of change in condenser entering water is 1 F per minute Fluctuating flow rate or temperature will cause unstable control of the machine resulting in poor control of leaving chill...

Page 10: ...ections Install air vent valves in all high connections on evaporator and condenser heads Install drain valves in similar low points to facilitate gravity draining of the system It is important that w...

Page 11: ...Z o INSTALLATION FIGURE 2 1 FLOOR LOADING DIAGRAM WCFX 30 30 30 33 33 33 33 36 36 36 84 50 60 Hz...

Page 12: ...0 1 u w ex Ill Ill w ex a J 1 L3 LI L21 I I v Vi If I If r I I If I If v I WATER FLOW RATE GPM 1 b CONDENSER 2 PASS WCFX 30 30 30 33 33 33 33 36 36 36 ex w l et u 0 1 u a 0 ex 0 w ex Ill Ill w ex a 1...

Page 13: ...act the Dunham Bush Sales Services for an authorized start up representative to perform the initial start up of the Dunham Bush packaged chiller The purchaser must have competent service and operating...

Page 14: ...ious corrosion 3 2 3 It is recommended that an oil sample be taken from each compressor and submitted for laboratory analysis Dunham Bush offers this service in its Oil Kare Program This analysis shou...

Page 15: ...rom the drain line liquid refrigerant flows into the flooded evaporator where it boils cooling the water flowing irlside evaporator tubes Vapor from the boiling refrigerant flows up the suction pipes...

Page 16: ...P C FLASH ECONOMIZER TANK P SOLENOID VALVE 0 ECONOMIZER DRAIN VALVE Q OIL RETURN CHECK VALVE E SUCTION SERVICE VALVE R OIL RETURN SIGHT GLASS F SUCTION CHECK VALVE S OIL OVERFLOW VALVE G SUCTION FILTE...

Page 17: ...the high pressure oil acting on the slide valve will be vented to suction and the pressure in the slide valve chamber will be reduced The slide valve spring will now move the piston back toward the mi...

Page 18: ...lower than expected minimum ambient temperature 3 8 2 In Operation Freezing of water in cooler tubes is a possibility if chilled water flow stops and if the low suction pressure cutout normally set fo...

Page 19: ...AR 400 460 NOTES MCA MINIMUM CIRCUIT AMPACITY MFS MAXIMUM FUSE SIZE RLA RATED LOAD AMPS AT ARI COS INR FIRST STEP INRUSH AMPS LRA LOCKED ROTOR AMPS UNIT MCA 6S9 698 729 760 791 19 50 60 Hz EACH COMPR...

Page 20: ...controlled by pulsing signals to the load and unload solenoids If the safety conditions are satisfied for the 2 compressor at least I minute has elapsed since starting 1 compressor and leaving water...

Page 21: ...r 1 n a IT S 1 I 1 u n Tll SU NOT 1 O I _ T ICJll t TO _ Q T 1 T I COP z IHA l tl tl ii lf a s t I 1 1 l 1 1 st l u l DIP 1 M O T U OVU lOAO IU l l 04 iotX l D lf t 14 l a o 1 I IUtf Ul u 2 l UlT 1 Oo...

Page 22: ...INT RRVPlCD FOR A PROLONG D P RIOD OIL SUl P H AT RS NVSl rt ENERGIZED FOii Z IOJltS MINIMUM BEF ORE STA TING COMPACSSORS llO HOT At I CT VlR ES IN IRE IMMll S 1 ro REStr ITAS IO D Pt FOii 5 StCO DS 9...

Page 23: ...to displaying one new analog input 4 4 2 To Reset All Control Points To Computer Control 1 Press the RESET key The display will show RESET ALL CPs to COMMODE N Y 2 Press the right arrow key to select...

Page 24: ...Time 1 You must be authorized See Section 4 4 4 2 Select DATE TIME SET on the main menu Press ENTER to display current date and time 3 Press ENTER key to move cursor to each date time item 4 As each...

Page 25: ...ressing 0 at Step 12 The schedule group turns on when any of the individual schedules turns on The turn on time does not have to be earlier than the turn offtime Schedules turn on by time and day but...

Page 26: ...ts in across the line starting of the compressor This minimizes wear on compressor and contactors 4 5 5 Load Control Microcomputer The microcomputer controls the leaving water temperature within a nar...

Page 27: ...ssor is fully loaded and temperature is not being maintained another compressor is added When unloading a compressor is taken off line when the computer determines that the remaining compressors can c...

Page 28: ...splay data press MENU then continue as above CAUTION Do not start compressor manually more than once every 15 minutes Verify that chilled water flow switch is closed 4 5 13Chilled Water Reset and Cust...

Page 29: ...tpoint A the compressor will be unloaded 4 6 SAFETY FUNCTIONS 4 6 1 Control Power Loss Microcomputer The microcomputer can be set up to start automatically or manually after a power failure to the mic...

Page 30: ...12TAS A thermostat is located in each compressor which will open the compressor run circuit if oil temperature exceeds 203 F The high oil temperature pilot light will indicate an excessive oil tempera...

Page 31: ...sociated compressors are shutdown The computer then stores the alarm code corresponding to the sensor alarm A sensor alarm indicates a problem m the analog measurement system 4 6 11 No Stop Alarm Micr...

Page 32: ...and saturated refrigerant temperature at the pressure in the vessel At full load read cooler and condenser pressures on the computer Then use Table 5 4 to find corresponding saturated temp for each Re...

Page 33: ...244 115 4 324 136 8 25 1 2 80 47 5 135 76 2 190 97 9 245 115 7 326 137 3 26 2 4 81 48 1 136 76 6 191 98 3 246 116 0 328 137 8 27 3 6 82 48 7 137 77 1 192 98 6 247 116 3 330 138 3 28 4 8 83 49 4 138 77...

Page 34: ...n If bubbles are visible in sightglass unit is undercharged Refrigerant should be added through the charging valve on the cooler feed line until the condenser drain sightglass clears Sight glass shoul...

Page 35: ...input h Close control contacts interlock is open is olT 2 Compressor a Cooling not a Cooler leading water a Apply load will not required temp less than 2 F start when above setpoint reset button b Com...

Page 36: ...condenser pressure drop curve or pressure flow and light on with pump curve b Fouling ofwater b High discharge presswe b At high load check difference side of condenser indication on computer between...

Page 37: ...012368A1 x Gasket 2 Pass A6 H013774 CONDENSERS P N CODE J3 Tube H007014A2 x Gasket 2 Pass A4 H013774 L Generation Heat Recovery Condenser Code ___ ______ Evaporator Code L3 M1 x x A6 A7 K1 K2 x x AS A...

Page 38: ......

Page 39: ...9A2 2 I 2 Computer Components Computer Board H009635A3 2 I 2 Chip Data Base H014409 2 2 Digital input output Board H009636A5 2 2 Analog Input Board H009637A1 2 2 Filter Board H009645A1 2 2 Power Cable...

Page 40: ...c...

Page 41: ...W4K_ _oc 4 3 H1218NHF6W4K_ _oc 1 Suction Gasket HGKT64 4 4 Discharge Gasket HGKT63 4 4 Load Control Solenoid Coil H063800A1 Oil Sight Glass H00458P29 O Ring HGLS3 Suction Filter Kit for 1215 1218 H005...

Page 42: ...c...

Page 43: ...N COOLER WATER TEMPERATURE OUT COOLER PRESSURE DROP PSI IN WATER COOLER WATER FLOW GPM CONDENSER PRESSURE DROP PSI IN WATER CONDENSER WATER FLOW GPM ACTUAL VOLTAGE NOT NOMINAL 1 COMPRESSOR AMPS 2 3 4...

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