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Installation, Operation and Maintenance Manual

IOMM AGZ-5

Group:

Chiller

Part Number:

330411801

Effective:

October 2004

Supercedes:

IOMM AGZ-4

Air-Cooled Scroll Compressor Chiller

AGZ 026B through 130B
60 Hertz, R-22

Содержание AGZ026BS

Страница 1: ...llation Operation and Maintenance Manual IOMM AGZ 5 Group Chiller Part Number 330411801 Effective October 2004 Supercedes IOMM AGZ 4 Air Cooled Scroll Compressor Chiller AGZ 026B through 130B 60 Hertz...

Страница 2: ...Control 65 Optional Low Ambient VFD 67 Using the Controller 77 Startup 91 Pre Start up 91 Start Up 91 Shutdown 92 Water Piping Checkout 92 Refrigerant Piping Checkout 92 Electrical Check Out 93 Operat...

Страница 3: ...ds automatic compressor lead lag to alternate the compressor starting sequence and sequenced starting of compressors The electrical control center includes all equipment protection and operating contr...

Страница 4: ...e pushing vehicle away from the unit to prevent damage to the sheet metal cabinet and end frame see Figure 1 To lift the unit 2 1 2 64mm diameter lifting tabs are provided on the base of the unit Arra...

Страница 5: ...ischarge pressures are increased There must be no obstruction above the unit that would deflect discharge air downward where it could be recirculated back to the inlet of the condenser coil The conden...

Страница 6: ...conditions In the case of single or compounded influences restricting airflow to the unit the microprocessor will act to keep the compressor s running possibly at reduced capacity rather than allowing...

Страница 7: ...essor s connected to these coils will be affected Circuits opposite the wall are unaffected When close to a wall it is desirable to place chillers on the north or east side of them It is also desirabl...

Страница 8: ...Add the two adjustment factors together and apply to the unit located between the wall and the other unit Mounting units end to end will not necessitate adjusting performance Depending on the actual a...

Страница 9: ...factors will be the same as Case 2 All inside units only number 2 in this case are influenced on both sides and must be adjusted by the factors shown below Figure 9 Three or More Units Chiller 1 Chil...

Страница 10: ...for concealment If the wall height is greater than the unit height see Case 5 Pit Installation The distance from the ends of the unit to the end walls should be sufficient for service opening control...

Страница 11: ...The grating material and installation design must be strong enough to prevent such accidents yet provide abundant open area or serious recirculation problems will occur Have any pit installation revie...

Страница 12: ...sound sensitive areas Vibration Isolators Vibration isolators are recommended for all roof mounted installations or wherever vibration transmission is a consideration Table 2 lists isolator loads for...

Страница 13: ...65 070 075 085 090 100 110 120 130 Spring Kit Part No 330349603 330349603 330349605 330349606 330349607 330349609 330349612 330349613 330349614 R I S Kit Part No 330349702 330349703 330349704 33034970...

Страница 14: ...ssive erosion potentially leading to failure Water Piping Local authorities can supply the installer with the proper building and safety codes required for safe and proper installation Install piping...

Страница 15: ...rant suction pressure will be lower cooling performance less and water side pressure drop greater If the percentage of glycol is high or if propylene is used instead of ethylene glycol the added press...

Страница 16: ...r at terminals 44 and 61 There is also a set of normally closed contacts on the switch that can be used for an indicator light or an alarm to indicate when a no flow condition exists Freeze protect an...

Страница 17: ...through the evaporator as the load decreases McQuay chillers are designed for this duty provided that the rate of change in water flow is not greater than 10 percent of the change per minute The water...

Страница 18: ...Point E G o F o C Capacity Power Flow PD 10 26 3 3 0 998 0 998 1 036 1 097 20 18 7 8 0 993 0 997 1 060 1 226 30 7 13 9 0 987 0 995 1 092 1 369 40 7 21 7 0 980 0 992 1 132 1 557 50 28 33 3 0 973 0 991...

Страница 19: ...unit operation Table 11 Capacity and Power Derates Models AGZ 026 to 070 Fouling Factor Chilled Water Delta T 0 0001 0 0176 0 00025 0 044 0 00075 0 132 0 00175 0 308 Altitude F C Cap Power Cap Power C...

Страница 20: ...1 011 0 870 0 992 12 6 7 0 997 1 028 0 984 1 024 0 944 1 013 0 875 0 994 14 7 7 1 002 1 029 0 989 1 025 0 949 1 014 0 879 0 995 6000 feet 16 8 9 1 006 1 031 0 992 1 027 0 952 1 016 0 882 0 996 6 3 3...

Страница 21: ...on of the heater cable is automatic through the ambient sensing thermostat that energizes the evaporator heater cable for protection against freeze up Unless the evaporator is drained in the winter th...

Страница 22: ...3 188 12 0 11 9 35 7 055B 78 1 8 4 9 5 3 125 4 4 7 9 13 0 209 11 7 13 2 34 8 060B 86 1 7 5 4 5 2 137 4 3 8 6 12 8 228 11 5 14 4 34 2 065B 92 1 6 5 8 4 9 147 4 1 9 3 12 1 246 10 9 15 5 32 5 070B 98 1 9...

Страница 23: ...e 20 Installation Sequence Rib Attachment First RIB FLANGES ON THE END MUST POINT TO CENTER OF COIL TO HAVE A FINISHED LOOK INTERIOR RIB FLANGES CAN POINT IN ANY DIRECTION ATTACH ALL RIBS TO COIL VERT...

Страница 24: ...Vertical Support Rib 074758501 1 Top Cover 330409401 2 Front Panel 330409501 3 20 x Screw Place in Poly Bag 046093807 Figure 21 Components VERTICAL SUPPORT RIB TOP COVER FRONT PANEL REAR AGAINST UNIT...

Страница 25: ...tion systems BAS protocols will be at the unit controller An interface card depending on the protocol being used may have been factory installed in the unit controller or it can be field installed Pro...

Страница 26: ...guards are standard Copper Fin Condenser Coils Copper fin condenser coils are available as an option on all models Black Fin Coils Aluminum fin stock precoated with a phenolic coating with 1000 hour...

Страница 27: ...ground fault currents less than those required for conductor protection High Short Circuit Current Protection Provides control panel protection against short circuit currents per the following table V...

Страница 28: ...ONDENSERS HIGH EFFICIENCY FIN AND TUBE TYPE WITH INTEGRAL SUBCOOLING Coil Face Area Sq Ft 26 3 26 3 26 3 26 3 26 3 26 3 Coil Face Area M2 2 4 2 4 2 4 2 4 2 4 2 4 Finned Height x Finned Length In 50x75...

Страница 29: ...H EFFICIENCY FIN AND TUBE TYPE WITH INTEGRAL SUBCOOLING Coil Face Area sq ft 44 1 44 1 44 1 44 1 44 1 44 1 44 1 44 1 Coil Face Area sq m 4 1 4 1 4 1 4 1 4 1 4 1 4 1 4 1 Finned Height x Finned Length i...

Страница 30: ...FFICIENCY FIN AND TUBE TYPE WITH INTEGRAL SUBCOOLING Coil Face Area sq ft 44 1 44 1 52 6 52 6 52 6 52 6 Coil Face Area m2 4 1 4 1 4 9 4 9 4 9 4 9 Finned Height x Finned Length in 42x75 6 42x75 6 50x75...

Страница 31: ...GRAL SUBCOOLING Coil Face Area sq ft 78 8 78 8 78 8 78 8 78 8 78 8 Coil Face Area m2 7 3 7 3 7 3 7 3 7 3 7 3 Finned Height x Finned Length in 50 x113 4 50 x113 4 50 x113 4 50 x113 4 50 x113 4 50 x113...

Страница 32: ...AL SUBCOOLING Coil Face Area sq ft 105 3 105 3 105 3 105 3 105 3 105 3 105 3 105 3 Coil Face Area m2 9 8 9 8 9 8 9 8 9 8 9 8 9 8 9 8 Finned Height x Finned Length in 50 x151 6 50 x151 6 50 x151 6 50 x...

Страница 33: ...4 90 90 040B 575 70 3 4 80 80 208 184 3 3 0 225 225 230 184 3 3 0 225 225 380 121 3 1 125 125 460 94 3 3 110 110 045B 575 78 3 4 90 90 208 199 3 3 0 225 225 230 199 3 3 0 225 225 380 127 3 1 150 150 4...

Страница 34: ...4 41 4 5 8 4 23 3 278 278 350 350 230 33 8 33 8 41 4 41 4 5 8 4 26 1 278 278 350 350 380 22 8 22 8 26 0 26 0 4 1 4 20 0 151 151 195 195 460 16 5 16 5 21 8 21 8 2 8 4 13 0 127 127 158 158 045B 575 13 7...

Страница 35: ...150 4 300 kcmil 208 380 4 500kcmil 225 4 300 kcmil 230 380 4 500kcmil 225 4 300 kcmil 380 175 14 GA 2 0 150 4 300 kcmil 460 175 14 GA 2 0 150 4 300 kcmil 045B 575 175 14 GA 2 0 150 4 300 kcmil 208 38...

Страница 36: ...300 460 188 3 3 0 225 225 090B 575 146 3 1 0 175 175 208 463 6 350 500 500 230 463 6 300 500 500 380 260 3 300 300 300 460 199 3 3 0 225 225 100B 575 171 3 2 0 175 175 208 528 6 2 300 600 600 230 528...

Страница 37: ...05 505 505 230 52 8 52 8 52 8 74 5 74 5 74 5 7 8 8 35 6 425 425 425 505 505 505 380 32 7 32 7 32 7 39 8 39 8 39 8 4 1 8 20 0 239 239 239 280 280 280 460 23 7 23 7 23 7 30 6 30 6 30 6 3 6 8 17 8 187 18...

Страница 38: ...00 250 kcmil 500 kcmil 460 380 4 500kcmil 250 6 350 kcmil 090B 575 380 4 500kcmil 250 6 350 kcmil 208 760 2 GA 500kcmil 600 2 250 kcmil 500 kcmil 230 760 2 GA 500kcmil 600 2 250 kcmil 500 kcmil 380 38...

Страница 39: ...70 80 60 3 6 70 80 460 43 3 8 50 50 43 3 8 50 50 040B 575 37 3 8 45 50 37 3 8 45 50 208 88 3 3 110 110 105 3 2 125 125 230 88 3 3 110 110 105 3 2 125 125 380 60 3 6 70 80 67 3 4 80 80 460 43 3 8 50 50...

Страница 40: ...0 230 175 175 14 GA 2 0 14 GA 2 0 150 150 14 1 0 14 1 0 380 175 175 14 GA 2 0 14 GA 2 0 150 150 14 1 0 14 1 0 460 175 175 14 GA 2 0 14 GA 2 0 150 150 14 1 0 14 1 0 045B 575 175 175 14 GA 2 0 14 GA 2...

Страница 41: ...75 175 175 14 GA 2 0 14 GA 2 0 150 150 14 1 0 14 1 0 208 380 380 4 500 kcmil 4 500 kcmil 250 400 4 300 kcmil 250 500 kcmil 230 380 380 4 500 kcmil 4 500 kcmil 250 400 4 300 kcmil 250 500 kcmil 380 175...

Страница 42: ...18 3 4 0 250 300 230 218 3 4 0 250 250 218 3 4 0 250 250 380 130 3 1 150 175 130 3 1 150 175 460 99 3 3 125 125 99 3 3 125 125 090B 575 77 3 4 90 100 77 3 4 90 100 208 203 3 4 0 250 250 273 3 300 300...

Страница 43: ...040B 575 70 3 4 80 80 208 207 3 4 0 225 225 230 188 3 3 0 225 225 380 123 3 1 125 125 460 94 3 3 110 110 045B 575 78 3 4 90 90 208 226 3 4 0 225 225 230 207 3 3 0 225 225 380 132 3 1 0 150 150 460 10...

Страница 44: ...5 47 6 47 6 5 8 4 23 3 278 278 350 350 230 33 8 33 8 43 3 43 3 5 8 4 26 1 278 278 350 350 380 22 8 22 8 27 2 27 2 4 1 4 20 0 151 151 195 195 460 17 0 17 0 21 8 21 8 2 8 4 13 0 127 127 158 158 045B 57...

Страница 45: ...34 3 10 45 45 208 98 3 3 125 125 98 3 3 125 125 230 88 3 3 110 110 88 3 3 110 110 380 60 3 6 70 80 60 3 6 70 80 460 44 3 8 50 60 44 3 8 50 60 040B 575 37 3 8 45 50 37 3 8 45 50 208 98 3 3 125 125 119...

Страница 46: ...4 0 250 250 090B 575 157 3 2 0 175 175 208 522 6 400 600 600 230 462 6 350 500 500 380 273 3 300 300 300 460 230 3 4 0 250 250 100B 575 187 3 3 0 200 200 208 612 6 2 350 700 700 230 526 6 2 300 600 6...

Страница 47: ...425 505 505 505 230 52 8 52 8 52 8 74 2 74 2 74 2 7 8 8 35 6 425 425 425 505 505 505 380 32 7 32 7 32 7 43 8 43 8 43 8 4 1 8 20 0 239 239 239 280 280 280 460 25 5 25 5 25 5 37 5 37 5 37 5 3 6 8 17 8...

Страница 48: ...0 250 300 230 211 3 4 0 250 250 211 3 4 0 250 250 380 142 3 1 0 175 175 142 3 1 0 175 175 460 111 3 2 125 150 111 3 2 125 150 090B 575 83 3 3 100 110 83 3 3 100 110 208 220 3 4 0 250 250 317 3 400 350...

Страница 49: ...is selected at approximately 225 of the largest compressor RLA plus 100 of all other loads in the circuit 7 The recommended power lead wire sizes are based on an ambient temperature of 86 F 30 C Ampa...

Страница 50: ...FOR DEMAND LIMIT BY OTHERS GND TO COMPRESSOR S AND FAN MOTORS DISCONNECT BY OTHERS 3 PHASE POWER GND LUG UNIT MAIN TERMINAL BLOCK FUSED CONTROL CIRCUIT TRANSFORMER 120 VAC 120VAC CONTROL POWER TB1 TB...

Страница 51: ...EL CONTROL PANEL DWG 3305195 Center of Gravity Inches mm Weights Lbs kg Unit Size X Y Z Evap Inlet Outlet Victaulic in Shipping Weight Operating Weight AGZ 026BS 39 991 40 1016 42 1067 3 3950 1792 399...

Страница 52: ...14 3 364 60 0 1525 110 1 2797 ISOLATOR LOCATIONS ON BOTTOM OF RAIL COMPRESSORS CIRC 1 COMPRESSORS CIRC 2 INLET OUTLET Dwg 3305023 CONTROL PANEL CONTROL PANEL EVAPORATOR Center of Gravity Inches mm We...

Страница 53: ...TROL CONNECTION Dwg 3305024 EVAPORATOR 173 1 4396 CONTROL PANEL CONTROL PANEL Evaporator Water Connections Inches mm Center of Gravity Inches mm Weights Lbs kg Unit Size Evap Inlet Outlet Victaulic A...

Страница 54: ...Table of Contents Overview 55 Inputs Outputs 55 Setpoints 57 Shutdown Alarms 58 Limit Alarms 59 Control Logic 60 Compressor Control 61 Condenser Fan Control 65 Using the Controller 68 Getting Started...

Страница 55: ...roller will also retain and display the date time the fault occurred In addition to displaying alarm diagnostics the MicroTech II chiller controller also provides the operator with a warning of limit...

Страница 56: ...Fault Protection Units with single point electrical connection will have one GFP with Inputs 11 and 12 wired together Units with multiple point connection will have two GFP s with Input 11 for Electri...

Страница 57: ...ut 35 F 2 35 to 60 F M Demand Limit No No Yes M Multipoint Power No No Yes M Compressor Number of Compressors 4 4 6 M Stage Up Delay 120 90 to 240 sec M Stage Down Delay 30 20 to 60 sec M Start Start...

Страница 58: ...Cool w Glycol Ice w Glycol 31 to 65 Psig Low Ambient Lockout Temperature VFD Range VFD N 35 60 F VFD Y 2 60 F Forced Fan 1 2 3 Number of Fans Range 4 1 2 fans 6 1 3 fans 8 1 4 fans Shutdown Alarms Shu...

Страница 59: ...n Taken column These events are auto clearing based on reaching the conditions in the reset column Table 41 Limit Alarms Description Occurs When Action Taken Reset Condenser Pressure Stage Down Pressu...

Страница 60: ...are controlled by two additional setpoints Available Modes Setpoint Determines the operational modes available at any time with options of COOL COOL w Glycol COOL ICE w Glycol and TEST Control Source...

Страница 61: ...start or stop is to occur Compressor sequencing is based primarily on compressor run hours and starts Compressors that have less starts will start before those with more starts Compressors that have...

Страница 62: ...s circuit Control band Evap Delta T x 25 For 3 compressors circuit Control band Evap Delta T x 17 IF LWT Error Startup_Delta_T_SP 0 5 Control band AND No Compressors Running AND Stage Up Timer Expired...

Страница 63: ...t reaches the maximum Circuit Capacity Overrides Limits of Operation The following conditions override the automatic capacity control when the chiller is in COOL mode or ICE mode These overrides keep...

Страница 64: ...On units not configured with multi point power connections the maximum load amps could be exceeded at high ambient temperatures If all circuit 1 compressors are running or all but one compressor on c...

Страница 65: ...pressure is less than the low evaporator pressure unload setpoint less 15 psi or the circuit has been in the pumpdown state for 60 seconds Condenser Fan Control Stage Up Compensation In order to creat...

Страница 66: ...Stage Up Accumulator once every Stage Up Error Delay seconds When Stage Up Error Accumulator is greater than the Stage Up Error Setpoint another stage is started When a stage up occurs or the saturate...

Страница 67: ...ent air temperature control is accomplished by using the Optional Low Ambient VFD to control the speed of the first fan on each circuit This VFD control uses a proportional integral function to drive...

Страница 68: ...erves also as a return for the other connections because of their phase relationship Do not to switch off power to the inverter while the motor is running unless it is an emergency stop Also do not in...

Страница 69: ...units associated with the parameter display Power LED This LED is ON when the power input to the inverter is ON Function Key This key is used to navigate through the lists of parameters and functions...

Страница 70: ...r F_01 been set greater than zero Are the control circuit terminals H O and L connected to the potentiometer Set the parameter for F_01 to a safe non zero value If the potentiometer is the frequency s...

Страница 71: ...to INV Copy data to the inverter again and keep power ON for six seconds or more after copying True for certain parameters Is the inverter in Run Mode Some parameters cannot be edited during Run Mode...

Страница 72: ...The inverter trips and does not go into Run Mode until the error is cleared E14 Ground fault The inverter is protected by the detection of ground faults between the inverter output and the motor durin...

Страница 73: ...meter GND to terminals 5 Meg Ohms or greater Mounting No loose screws Torque wrench M3 0 5 0 6 Nm M4 0 98 1 3 Nm M5 1 5 2 0 Nm Components Overheating Thermal trip events No trip events Housing Dirt d...

Страница 74: ...r before checking controllers or performing maintenance Be sure equipment is properly grounded Wear safety glasses whenever working on electronic controllers or rotating machinery WARNING Wait at leas...

Страница 75: ...setting 1 0 A_39 Jog stop mode 00 A_41 Torque boost method selection 00 A_42 Manual torque boost value 11 A_43 Manual torque boost frequency adjustment 10 0 A_44 V f characteristic curve selection 00...

Страница 76: ...initialization 02 B_86 Frequency scaling conversion factor 1 0 B_87 STOP key enable 00 B_88 Restart mode after FRS 00 B_89 Data select for digital op OPE J 01 Intelligent Terminal Functions C Group Pa...

Страница 77: ...setpoint contained in the menu screen Navigating Through the Menus The menus are arranged in a matrix of screens across a top horizontal row Some of these top level screens have sub screens located un...

Страница 78: ...U mode as shown in Figure 26 Figure 27 Display in the Shortcut SCROLL Mode and Keypad Layout Air Conditioning VIEW UNIT STATUS Unit COOL Compr 1 2 OFF OFF Evap Pump RUN Menu Screens The menus are show...

Страница 79: ...ure 26 2 Press SET the UP Key to go to the setpoint menus 3 Press UNIT SPs the Right key to go to setpoints associated with unit operation 4 Press the DOWN key to scroll down through the setpoint menu...

Страница 80: ...al As discussed previously a hierarchical menu structure can be used to access the various screens One to twenty five levels can be used below the top level menu with two or three being typical Option...

Страница 81: ...creens are in order of the matrix in Figure 28 going from left to right and then down when there are sub menus Many menus are self explanatory VIEW UNIT STATUS VIEW UNIT STATUS 1 Off Unit Switch Cool...

Страница 82: ...2 VFD Divide by 100 for actual voltage VIEW UNIT TEMPERATURES VIEW UNIT TEMP 1 Evap LWT XXX X F OAT XXX X F LWT Target XX X F VIEW UNIT TEMP 2 LWT Pulldn XX X F m Control Band XX X F VIEW CIRCUIT STA...

Страница 83: ...mp XXX X o F Superheat XXX X o F Evap Appr XX X o F Evap Appr evaporator approach temperature is the difference between the leaving fluid temperature and the saturated evaporator temperature It is an...

Страница 84: ...U button then the LEFT button for ALARM and then the left button again to reach the ALARM ACTIVE screen The cause of the alarm must be remedied before attempting to clear the alarm To clear the alarm...

Страница 85: ...R key until the desired field is selected Two four digit passwords provide OPERATOR and MANAGER levels of access to setpoints The passwords are preprogrammed into the controller The Operator Password...

Страница 86: ...TEST for use by service technician for certain test procedures SET UNIT SPs 2 Available Modes COOL w Glycol Set w FP Switch Off Available Modes settings can be COOL COOL w Glycol ICE w Glycol or TEST...

Страница 87: ...controller s display of the parameters The sensors used in these units have a high degree of repeatability but may need initial correction offset An accurate pressure gauge or thermometer is used to...

Страница 88: ...the last stage change before a compressor can stage off normally not by an alarm SET LIMIT ALARMS SET ALARM LMTS 1 LowEvPrHold XXXpsi LowEvPrUnld XXXpsi The LowEvPrHold and LowEvPrUnld have the same...

Страница 89: ...O GroundFault YES NO SET FAN STAGES SET FANS SPs 1 Number of Fans X Fan VFD YES NO The Number of Fans line tells the controller the number of fans on the unit The UP ARROW toggles between 4 6 and 8 Fa...

Страница 90: ...ode Using these screens any digital output can be controlled manually TEST UNIT 1 Alarm Signal Off EvapWaterPump Off TEST UNIT 2 Liq Line Sol 1 Off Compressor HG1 Off 1 Off 3 Off 5 Off TEST UNIT 3 Liq...

Страница 91: ...lus one half the control band before the MicroTech II controller will stage on cooling 4 Set the Evap Delta T and the Start Delta T as a starting point 5 Put both pumpdown switches PS1 and PS2 to the...

Страница 92: ...system is not drained Tag all opened electrical disconnect switches to warn against start up before the refrigerant valves are in the correct operating position At start up electrical power must be on...

Страница 93: ...you may wish to disconnect it 6 Check at the power block or disconnect for the proper voltage and proper voltage between phases Check power for proper phasing using a phase sequence meter before start...

Страница 94: ...um pressure drop at other load points Replace the filter drier if the pressure drop exceeds maximum WARNING Pump out refrigerant before removing end flange for replacement of core s to remove liquid r...

Страница 95: ...temperature in the crankcase high enough to prevent refrigerant from migrating to the crankcase and condensing in the oil during off cycle Power must be supplied to the heaters 24 hours before startin...

Страница 96: ...ends the use of foaming coil cleaners available at most air conditioning supply outlets Use caution when applying such cleaners as they can contain potentially harmful chemicals Care should be taken n...

Страница 97: ...lter drier changed or verify moisture content by performing an acid test on the compressor oil Preventive Maintenance Schedule OPERATION WEEKLY MONTHLY Note 1 ANNUAL Note 2 General Complete unit log a...

Страница 98: ...moisture in the system During the first few months of operation the filter drier replacement can be necessary if the pressure drop across the filter drier exceeds the values listed in the paragraph ab...

Страница 99: ...r fans are operating This is equal to 15 F to 20 F 8 3 C to 11 1 C subcooling below the saturated condensing temperature when the pressure is read at the liquid valve between the condenser coil and th...

Страница 100: ...6 C range 4 Add sufficient charge to clear the liquid line sight glass and until all flashing stops in the sight glass 5 Check the unit subcooling value by reading the liquid line pressure and temper...

Страница 101: ...6 Clean coil 7 Correct 1 Refrigerant flood back 1 Correct 2 Wind blowing into coil at low ambient 2 Shield coil from direct wind Wind guards are available 3 Faulty condenser temperature regulation 3 C...

Страница 102: ...Loses Oil 3 Crankcase heater burnout 3 Replace crankcase heater 1 Low voltage during high load conditions 1 Check supply voltage for excessive line drop 2 Defective or grounded wiring in motor 2 Repla...

Страница 103: ...IOMM AGZ 5 AGZ 026B through 130B 103...

Страница 104: ...104 AGZ 026B through 130B IOMM AGZ 5...

Страница 105: ......

Страница 106: ...nton Virginia 24402 USA 800 432 1342 www mcquay com IOMM AGZ 5 10 04 This document contains the most current product information as of this printing For the most up to date product information please...

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