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Mueller E-Star OESE 3.5 and 5 HP HFC Condensing Unit

Installation and Operation Manual, Part No. 8828747

Effective April 13, 2020

7.5

OESE LOW-VOLTAGE, 24-VAC CONTROL CIRCUIT

17

HIGH PRESSURE SWITCH

MANUAL OR AUTO RESET

LOW PRESSURE SWITCH

MANUAL OR AUTO RESET

BLUE

BLUE

BLUE

BLUE

24V CONTROL

FROM CONTROL BOX

BLUE

TERMINAL

BLOCK

24V

BLUE

BLUE

BLUE

24V COIL

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Summary of Contents for 8825311

Page 1: ...Part No 8828747 Effective April 13 2020 E Star OESE Condensing Unit 3 5 and 5 HP HFC INSTALLATION AND OPERATION MANUAL...

Page 2: ......

Page 3: ...Table 3 Suction Line Sizing 4 Table 4 Discharge Line Sizing To and From the Fre Heater 4 Table 5 Condensing Unit Connection Sizes 4 2 5 Electrical Connections 5 2 6 Pump Down Installations 5 Section 3...

Page 4: ...l August 31 2007 14 7 3 OESE 3 5 and 5 HP 200 220 50 1 208 230 60 1 Wiring Schematic 15 7 4 OESE 3 5 and 5 HP 200 240 50 3 208 230 60 3 Wiring Schematic 16 7 5 OESE Low Voltage 24 VAC Control Circuit...

Page 5: ...dentifies Suction Line Screen Location 26 12 9 Label No 8822232 Warning Symbol Hot 27 12 10 Label No 8820623 Warning Symbol Electrical 27 12 11 Label No 8822226 Warning Screen Guard Removal 27 12 12 L...

Page 6: ...Phase 208 230 V Compressor Data Chart 32 15 3 ZB38KCE Single Phase 208 230 V Compressor Data Chart 33 15 4 ZB38KCE Three Phase 208 230 V Compressor Data Chart 34 15 5 ZB38KCE Three Phase 460 V Compres...

Page 7: ...m liquid refrigerant 3 A custom tube and fin condenser with rifled tubing and integral subcooling loop provides an enhanced heat exchange surface The subcooling loop maintains subcooled liquid refrige...

Page 8: ...ler com 1 3 INSTALLATION INFORMATION Electrical and refrigeration installation and service must be performed by an authorized service technician who has the proper training to install and service refr...

Page 9: ...nser Serviceability The condensing unit should be located with the compressor and electrical enclosure accessible for service Do not pipe refrigerant lines in front of the electrical enclosure Efficie...

Page 10: ...any recommends the shortest pipe run possible TABLE 5 CONDENSING UNIT CONNECTION SIZES 4 Compressor Horsepower Equivalent Length of Pipe Feet 30 30 50 50 100 3 5 1 2 1 2 1 2 5 1 2 1 2 5 8 7 5 5 8 5 8...

Page 11: ...statement below Refer to the electrical schematics in Section 7 for connection details WARNING Mueller E Star OESE condensing units are prewired for low voltage 24 VAC control circuit input Connectin...

Page 12: ...n Table 6 Section 3 3 outlines the weigh in procedure IMPORTANT The recommended startup charge is only an initial charge more refrigerant may be necessary to have a properly charged system Refer to Se...

Page 13: ...on 5 0 for superheat adjustment 3 Check the sight glass installed at the TEV inlet If the sight glass shows vapor refrigerant bubbles go to step 4 If the sight glass is clear with liquid refrigerant s...

Page 14: ...xchanger coil before entering the evaporator there will be less flash gas at the inlet of the expansion valve Any liquid refrigerant returned from the evaporator is evaporated into vapor when it conta...

Page 15: ...Fan Scroll Compressor Ambient Air Receiver This is a custom designed accumulator heat exchanger To ensure proper system operation a genuine Mueller accumulator heat exchanger must be used Accumulator...

Page 16: ...tions Part No for Milk Cooler Applications Part No for Chiller Applications 1A R 22 5 HP 1 2 ODF inlet x 5 8 ODF outlet solder 8824492 8824511 1B R 22 3 5 HP 1 2 ODF inlet x 5 8 ODF outlet solder 8824...

Page 17: ...erheat value is calculated by subtracting the saturation temperature dew point determined in step 3 from the actual suction line temperature taken in step 2 5 If the superheat is not in the proper ran...

Page 18: ...d returning from the evaporator providing cool vapor refrigerant to the suction inlet of the compressor Oil Return to the Compressor Oil settles to the bottom of the accumulator and is returned to the...

Page 19: ...employing the safety device shall not be grounded 2 Minimal 20 VA transformer required for control voltage 3 Use minimum of 75 C insulated copper wire on field wiring 4 Fan motor is internally thermal...

Page 20: ...nt DFE0155 3 2 3 1 1 2 3 4 TO CUSTOMER SUPPLIED FUSED DISCONNECT 208 230 60 1 FAN SPEED CONTROL FV31 S2 15S EFFECTIVE TO SEPTEMBER 2002 FAN SPEED CONTROL FV31 S2 25S EFFECTIVE TO JANUARY 2002 BLACK YE...

Page 21: ...copper wire on field wiring 4 Fan motor is internally thermal protected 5 Connect 24 volt control wiring to leads with supplied wire nuts 6 Field wiring not to come in contact with control box heater...

Page 22: ...minimum of 75 C insulated copper wire on field wiring 4 Fan motor is internally thermal protected 5 Connect 24 volt control wiring to leads with supplied wire nuts 6 Field wiring not to come in contac...

Page 23: ...on Manual Part No 8828747 Effective April 13 2020 7 5 OESE LOW VOLTAGE 24 VAC CONTROL CIRCUIT 17 HIGH PRESSURE SWITCH MANUAL OR AUTO RESET LOW PRESSURE SWITCH MANUAL OR AUTO RESET BLUE BLUE BLUE BLUE...

Page 24: ...RESSURE SWITCH MANUAL OR AUTO RESET LOW PRESSURE SWITCH MANUAL OR AUTO RESET BLUE BLUE BLUE BLUE BLUE TERMINAL BLOCK 24V BLUE BLUE BLUE 24V COIL X ADD JUMPER BETWEEN A ON COIL AND L2 ON CONTACTOR REMO...

Page 25: ...ssure gauge to the high side service valve P6 2 Disconnect the fan motor wires from the high voltage terminal strip and monitor the high side pressure on the gauge 3 The high pressure switch should op...

Page 26: ...the pressure range turn the adjustment screw clockwise To lower pressure range turn the adjustment screw counter clockwise One turn of the adjustment screw will change the range by approximately 15 p...

Page 27: ...normal operating conditions with the compressor and condenser fan motor operating Measurements were taken with a sound meter Model 33 2055 on the A weighted scale 9 2 SOUND MEASUREMENT All sound measu...

Page 28: ...at Evaporator Inlet P5 Pressure at Filter Drier Inlet P6 Pressure at Liquid Line Service Valve P7 Pressure at Receiver Outlet TEMPERATURE READINGS T1 Milk Temperature T2 Suction Line Temperature at E...

Page 29: ...voltage 5 Measure the compressor s amperage draw Verify it is within 10 of the compressor s technical data chart 6 Check all electrical connections ensuring that they are clean and tight 7 Check the...

Page 30: ...als refrigerant and oils are handled and or disposed of according to applicable codes and regulations 11 2 COMPRESSOR REFRIGERANT OIL The compressor contains a lubricant consisting of polyolester POE...

Page 31: ...PORTS OR SCHRADER VALVES BEFORE REMOVING FITTINGS EVACUATE THE SYSTEM TO 500 MICRONS BEFORE CHARGING WITH REFRIGERANT DISCARD THIS TAG UPON CHARGING SYSTEM WITH REFRIGERANT AND APPLY A SYSTEM REFRIGE...

Page 32: ...n pressure Reverse rotation has no negative impact on the scroll compressors However after several minutes of operation the compressor line break will de energize the compressor In order to correct th...

Page 33: ...UPPLIES BEFORE SERVICING 27 6911 8822232 WARNING 6911 8822226 Authorized Personnel Only To Remove Screen Guard 0001 8822141 WARNING RISK OF ELECTRIC SHOCK CAN CAUSE INJURY OR DEATH DISCONNECT ALL REMO...

Page 34: ...A ELECTRICIDAD ANTES DE REMOVER LA TELA DE PROTECCION DISCONNECT POWER BEFORE REMOVING SCREEN GUARD D BRANCHER L ALIMENTATION LECTRIQUE AVANT D ENLEVER L CRAN DE PROTECTION PELIGRO WARNING ADVERTISSEM...

Page 35: ...ted compounds will decompose at high temperatures such as those associated with gas flames or electric heaters The chemicals that result under these circumstances always include hydrofluoric acid Thes...

Page 36: ...HP Three Phase Unit 200 240 50 60 1 18 4 30 8825341 Compressor Scroll ZB26KCE TF5 200 220 208 230 50 60 1 13 2 88 8823340 Fan Motor 1 3 HP 200 220 208 230 50 60 1 1 9 OESE A51 HFC 8825317 5 HP Single...

Page 37: ...10 0 25 0 0 35 10 0 46 15 0 52 20 0 58 25 0 65 30 0 73 35 0 81 45 0 98 60 Hz Operation Evaporating Temperature F Sat Dew Pt Pressure psig Rating Conditions 65 F Return Gas 0 F Subcooling 95 F Ambient...

Page 38: ...0 46 15 0 52 20 0 58 25 0 65 30 0 73 35 0 81 45 0 98 60 Hz Operation Evaporating Temperature F Sat Dew Pt Pressure psig Rating Conditions 65 F Return Gas 0 F Subcooling 95 F Ambient Air Over ZB26KCE T...

Page 39: ...0 46 15 0 52 20 0 58 25 0 65 30 0 73 35 0 81 45 0 98 60 Hz Operation Evaporating Temperature F Sat Dew Pt Pressure psig Rating Conditions 65 F Return Gas 0 F Subcooling 95 F Ambient Air Over ZB38KCE P...

Page 40: ...0 46 15 0 52 20 0 58 25 0 65 30 0 73 35 0 81 45 0 98 60 Hz Operation Evaporating Temperature F Sat Dew Pt Pressure psig Rating Conditions 65 F Return Gas 0 F Subcooling 95 F Ambient Air Over ZB38KCE T...

Page 41: ...0 46 15 0 52 20 0 58 25 0 65 30 0 73 35 0 81 45 0 98 60 Hz Operation Evaporating Temperature F Sat Dew Pt Pressure psig Rating Conditions 65 F Return Gas 0 F Subcooling 95 F Ambient Air Over ZB38KCE T...

Page 42: ......

Page 43: ...1 147 20 34 18 45 1 21 105 9 00 48 19 176 25 81 78 46 247 38 34 101 00 318 48 39 119 10 389 56 84 134 30 460 64 12 147 40 35 17 90 0 22 106 9 28 48 70 177 26 01 78 82 248 38 50 101 30 319 48 50 119 30...

Page 44: ......

Page 45: ...rator Inlet P5 Pressure at Filter Drier Inlet P6 Pressure at Liquid Line Service Valve P7 Pressure at Receiver Outlet TEMPERATURE READINGS T1 Milk Temperature T2 Suction Line Temperature at Evaporator...

Page 46: ......

Page 47: ......

Page 48: ...1600 West Phelps Street Springfield Missouri 65802 U S A DFE Service 1 800 756 5991 DFETechService paulmueller com 1 800 MUELLER WWW PAULMUELLER COM 2020 Paul Mueller Company 20 DFESGF 0141 8828747...

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