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KRACK FEV 11, Installation And Operation Manual

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KRACK FEV 11 Installation And Operation Manual Download Page 40

Fluid Cooler Series Air-Cooled Fluid Cooling Units (PN E208134_D) 

39

 

 

7.11  Wiring of Units with Vspeed K Motor 

Vspeed variable speed fluid coolers use Nidec BPM motors which use KB VFD’s. The VFD’s come 
factory mounted in the control panel. Airflow is increased/decreased across the fluid cooler coil surface 
by modulating variable speed fans. 

The below figure shows wiring schematics for the drives and motors. 

Figure 22 Typical One Wide Unit Drawing with K Motor 

 

 

 

Summary of Contents for FEV 11

Page 1: ...0 Part Number E208134_D ...

Page 2: ...dered more of a right to know law than a pure product safety law When used as designed Hussmann believes that our products are not harmful We provide the Proposition 65 warning to stay in compliance with California State law It is your responsibility to provide accurate Proposition 65 warning labels to your customers when necessary For more information on Proposition 65 please visit the California...

Page 3: ...EG ASSEMBLY FOR 30 FAN UNIT 26 5 2 HORIZONTAL AIRFLOW BASE SUPPORT 26 5 3 LEG ASSEMBLY FOR 24 FAN UNITS 27 6 INSTALLATION AND PIPING 28 6 1 MOUNTING THE UNIT 28 6 2 INTERCONNECTING PIPING FOR DOUBLE WIDE UNITS 28 6 3 FLUID PIPING 28 6 4 RECOMMENDED FLUIDS AND OILS 30 6 5 GLYCOL SLUDGE PREVENTION 31 6 6 RECOMMENDED CONNECTION SIZE 31 7 ELECTRICAL 32 7 1 FIELD WIRING 32 7 2 CONTROL PANEL NOMENCLATUR...

Page 4: ...ISCHARGE UNIT 7 Figure 3 UNIT DIMENSIONS WITH B MOTORS VERICALE AIR DISCHARGE UNIT 10 Figure 4 UNIT DIMENSIONS WITH A C E F MOTORS HORIZONTAL AIR DISCHARGE UNIT 12 Figure 5 UNIT DIMENSIONS WITH K MOTOR HORIZONTAL AIR DISCHARGE UNIT 15 Figure 6 UNIT DIMENSIONS WITH B MOTOR HORIZONTAL AIR DISCHARGE UNIT 18 Figure 7 LOCATION REQUIRMENTS 23 Figure 8 RIGGING FOR 30 FAN UNITS A C E F K MOTORS 24 Figure ...

Page 5: ...itrogen gas holding charge Absence of this charge may indicate a leak has developed in transit The system should not be filled with fluid until it is verified that there is no leak or the source of the leak is located and repaired if necessary If the coil section has MPT or flanged connections the coil is not charged Once the unit is installed in the system check the coil during the system pressur...

Page 6: ...08134_D 5 2 2 Unit Dimensions with A C E F Motor Types Vertical Air Discharge Units Figure 1 and Table 1 and 2 contain the overall dimensions and support leg bolt hole locations for all of the A C E and F fan units Figure 1 Unit Dimensions with A C E F Motor ...

Page 7: ... 00 41 25 53 00 FEV 15 279 85 45 25 58 50 108 00 54 00 274 00 41 25 53 00 FEV 16 333 85 45 25 58 50 108 00 108 00 328 00 41 25 53 00 FEV 17 387 85 45 25 58 50 108 00 54 00 382 00 41 25 53 00 MODEL DIMENSIONS IN L W H A B C D P FEV 22 117 85 90 55 58 50 108 00 NA 112 00 86 55 53 00 FEV 23 171 85 90 55 58 50 54 00 108 00 166 00 86 55 53 00 FEV 24 225 85 90 55 58 50 108 00 108 00 220 00 86 55 53 00 F...

Page 8: ...8 5 10 48 80 4 84 5 6 84 5 8 84 5 10 84 5 12 84 5 14 84 5 16 60 93 4 96 5 6 96 5 8 96 5 10 96 5 12 96 5 14 96 5 16 LEG Ht FEV 22 FEV 23 FEV 24 FEV 25 FEV 26 FEV 27 Ht NO OF LEGS Ht NO OF LEGS Ht NO OF LEGS Ht NO OF LEGS Ht NO OF LEGS Ht NO OF LEGS 30 66 5 4 66 5 6 66 5 6 66 5 8 66 5 8 66 5 10 36 72 5 4 72 5 6 72 5 6 72 5 8 72 5 8 72 5 10 42 78 5 4 78 5 6 78 5 6 78 5 8 78 5 8 78 5 10 48 84 5 6 84 5...

Page 9: ...Fluid Cooler Series Air Cooled Fluid Cooling Units PN E208134_D 8 ...

Page 10: ... 41 25 58 50 FEVK15 274 00 56 00 63 00 108 00 54 00 274 00 41 25 58 50 FEVK16 328 00 56 00 63 00 108 00 108 00 328 00 41 25 58 50 FEVK17 382 00 56 00 63 00 108 00 54 00 382 00 41 25 58 50 MODEL DIMENSIONS IN L W H A B C D P FEVK22 120 75 90 55 63 00 108 00 NA 112 00 86 55 58 50 FEVK23 174 75 90 55 63 00 54 00 108 00 166 00 86 55 58 50 FEVK24 228 75 90 55 63 00 108 00 108 00 220 00 86 55 58 50 FEVK...

Page 11: ... 10 48 84 5 4 89 0 6 89 0 8 89 0 10 89 0 12 89 0 14 89 0 16 60 96 5 4 101 0 6 101 0 8 101 0 10 101 0 12 101 0 14 101 0 16 LEG Ht FEVK22 FEVK23 FEVK24 FEVK25 FEVK26 FEVK27 Ht No OF LEGS Ht No OF LEGS Ht No OF LEGS Ht No OF LEGS Ht No OF LEGS Ht No OF LEGS 30 71 0 4 71 0 6 71 0 6 71 0 8 71 0 8 71 0 10 36 77 0 4 77 0 6 77 0 6 77 0 8 77 0 8 77 0 10 42 83 0 4 83 0 6 83 0 6 83 0 8 83 0 8 83 0 10 48 89 0...

Page 12: ...Fluid Cooler Series Air Cooled Fluid Cooling Units PN E208134_D 11 ...

Page 13: ...AVB17 261 22 44 55 41 44 72 00 36 00 254 75 42 55 MODEL DIMENSIONS IN L W H A B C D FAVB22 81 22 87 62 41 44 72 00 NA 74 75 85 62 FAVB23 117 22 87 62 41 44 108 00 NA 110 75 85 62 FAVB24 153 22 87 62 41 44 72 00 NA 146 75 85 62 FAVB25 189 22 87 62 41 44 72 00 36 00 182 75 85 62 FAVB26 225 22 87 62 41 44 72 00 NA 218 75 85 62 FAVB27 261 22 87 62 41 44 72 00 36 00 254 75 85 62 2 5 Unit Dimensions wit...

Page 14: ...Fluid Cooler Series Air Cooled Fluid Cooling Units PN E208134_D 13 ...

Page 15: ...Fluid Cooler Series Air Cooled Fluid Cooling Units PN E208134_D 14 ...

Page 16: ...EH 16 333 85 36 50 49 94 31 75 45 25 FEH 17 388 88 36 50 49 94 31 75 45 25 MODEL DIMENSIONS IN L W H D P FEH 22 117 85 54 18 95 19 31 75 90 50 FEH 23 171 85 54 18 95 19 31 75 90 50 FEH 24 225 85 54 18 95 19 31 75 90 50 FEH 25 279 85 54 18 95 19 31 75 90 50 FEH 26 333 85 54 18 95 19 31 75 90 50 FEH 27 388 88 54 18 95 19 31 75 90 50 2 6 Unit Dimensions for Units with K Motor Horizontal Air Flow Unit...

Page 17: ...Fluid Cooler Series Air Cooled Fluid Cooling Units PN E208134_D 16 ...

Page 18: ...Fluid Cooler Series Air Cooled Fluid Cooling Units PN E208134_D 17 ...

Page 19: ...90 49 94 31 75 45 25 FEHK17 390 75 53 90 49 94 31 75 45 25 MODEL DIMENSIONS IN L W H D P FEHK22 120 75 71 36 95 19 31 75 90 50 FEHK23 174 75 71 36 95 19 31 75 90 50 FEHK24 228 75 71 36 95 19 31 75 90 50 FEHK25 282 75 71 36 95 19 31 75 90 50 FEHK26 336 75 71 36 95 19 31 75 90 50 FEHK27 390 75 71 36 95 19 31 75 90 50 2 7 Unit Dimensions for Units with B Motor Horizontal Air Flow Unit Figure 6 and Ta...

Page 20: ...Fluid Cooler Series Air Cooled Fluid Cooling Units PN E208134_D 19 ...

Page 21: ...4 50 44 50 FAHB12 82 31 24 50 44 50 FAHB13 118 31 24 50 44 50 FAHB14 154 31 24 50 44 50 FAHB15 190 31 24 50 44 50 FAHB16 226 31 24 50 44 50 FAHB17 262 31 24 50 44 50 MODEL DIMENSIONS IN L W H FAHB22 82 31 24 50 87 62 FAHB23 118 31 24 50 87 62 FAHB24 154 31 24 50 87 62 FAHB25 190 31 24 50 87 62 FAHB26 226 31 24 50 87 62 FAHB27 262 31 24 50 87 62 ...

Page 22: ...23408 2214 37 1 FEV 12408 830 16 6 FEV 23410 2238 37 1 FEV 12410 838 16 6 FEV 23412 2287 37 1 FEV 12412 855 16 6 FEV 24308 2526 36 7 FEV 13210 1041 9 6 FEV 24310 2651 36 7 FEV 13212 1060 9 6 FEV 24312 2700 36 7 FEV 13308 1126 14 1 FEV 24408 2851 48 8 FEV 13310 1135 14 1 FEV 24410 2884 48 8 FEV 13312 1153 14 1 FEV 24412 2950 48 8 FEV 13408 1210 18 7 FEV 25308 3725 45 6 FEV 13410 1223 18 7 FEV 25310...

Page 23: ...3410 1225 12 3 FAVB12312 382 3 2 FAVB23412 1265 12 3 FAVB12408 386 5 5 FAVB24308 1665 12 1 FAVB12410 400 5 5 FAVB24310 1705 12 1 FAVB12412 413 5 5 FAVB24312 1745 12 1 FAVB13308 544 4 7 FAVB24408 1771 16 1 FAVB13310 559 4 7 FAVB24410 1825 16 1 FAVB13312 574 4 7 FAVB24412 1880 16 1 FAVB13408 580 6 2 FAVB25308 1672 15 1 FAVB13410 600 6 2 FAVB25310 1722 15 1 FAVB13412 620 6 2 FAVB25312 1772 15 1 FAVB1...

Page 24: ...g Unit sound levels should be considered for the unit location A fluid cooling unit should be located away from sound and vibration sensitive spaces to avoid transmission into those spaces FIGURE 7 LOCATION REQUIREMENTS Walls or Barriers Multiple Units For proper airflow and access all sides of the unit For units placed side by side the minimum distance should be a minimum of W away from any wall ...

Page 25: ...r no circumstances should the coil headers or return bends be used in lifting or moving the unit See Figures 8 and 9 for the designated lifting points and lift methods for all unit sizes plus approximate unit weights FIGURE 8 RIGGING AND LIFTING FOR 30 FAN UNITS UNITS WITH A C E F AND K MOTORS NOTE STATIONARY LIFTING POINTS AND LIFTING PLATES FACTORY MOUNTED OUTER SUPPORT LEGS IF REQUIRED SHIPPED ...

Page 26: ... LIFTING POINTS AND LIFTING PLATES FACTORY MOUNTED OUTER SUPPORT LEGS IF REQUIRED SHIPPED LOOSE FOR FIELD INSTALLATION BY OTHERS WITH NECESSARY BOLTS WASHERS AND NUTS INCLUDED SEE SECTION 5 1 FOR LEG MOUNTING INSTRUCTIONS UNDER NO CIRCUMSTANCES SHOULD CONSIDER MANIFOLDS ELECTRICAL ENCLOSURE S OR RETURN BENDS BE USE FOR LIFTING OR MOVING THE UNITS ...

Page 27: ...height will require a leg between every fan section and cross bracing for stability FIGURE 10 STANDARD 22 LEG ASSEMBLY 1 2 x 13 HEX BOLT FLAT WASHER UNIT CABINET SUPPORT LEG FLAT WASHER LOCK WASHER 1 2 x 13 NUT 5 2 Horizontal Airflow Unit Base Support Double wide fluid cooler units with 30 diameter fans standing up with horizontal airflow will have heavy duty sheet metal supports running the lengt...

Page 28: ...clearance the attachment procedure for the shipped loose legs and the cross bracing is shown in Figure 11 below Raise the unit off the ground via rigging or other stable support for leg and bracing attachment Units that are designed to blow air in the horizontal direction do not require legs and are ready to be rigged into position FIGURE 11 STANDARD 42 LEG BRACING ASSEMBLY INNER SUPPORT LEG FACTO...

Page 29: ...be dragged internally with a clean lint free rag before fabricating into the system Soft solders are not to be used Always clean all pipe and fitting areas that will be brazed with the proper grade emery cloth Plan to use only oxy acetylene brazing A higher content silver brazing rod must be used to avoid excessive use of flux to avoid it being pushed into the system piping which will create probl...

Page 30: ... the field piping has been completed The test pressure should not exceed the unit UL nameplate pressure Nitrogen may be used to increase the trace refrigerant pressure for leak testing Shipping vibrations can stress joints thus producing operating leaks which would otherwise go undetected from just a low pressure holding charge Therefore check for leaks at all joints before filling the system Fiel...

Page 31: ...peratures Consult glycol vendor recommendations for specific freeze protection for installed location Common fluids that can be cooled include water glycol and refrigeration oil These fluids and variety others can be simulated in our computer software program to optimize circuiting and calculate performance for the specific supply temperature flow rate and fluid type Krack offers fluid coolers wit...

Page 32: ...tion ASME B31 5 should be followed as a guide for installation and operation practice Refrigerant line sizes and piping techniques should be obtained from the ASHRAE guide or equivalent reference Under no circumstances should the refrigerant connection size of the unit be used as the basis for sizing the lines 7 ELECTRICAL If the fluid cooler unit is equipped with an electrical power disconnect sw...

Page 33: ...comply with NEC and local codes The power supply voltage phase and frequency must match what is shown on the unit data plate Only qualified electricians should work on the electrical portion of any unit installation 7 2 Control Panel Nomenclature for A B C E F Motors Control Panel Nomenclature for K Motor ...

Page 34: ...n Cycling Control Panel The standard fan cycling control panel for fluid cooler units contains a series of temperature controllers The fans cycle on and off from a signal by the temperature sensor If the unit has one row of fans the fan cycling controls turn the fans on or off individually If the unit has two rows of fans either adjoining pairs of fans or individual fans can be cycled depending up...

Page 35: ...e unit can be a separate feed or it can be taken from the fan motor feed In case of single power feed connection a stepdown transformer will be used Transformer sized based on primary secondary voltages and amps required Control voltage can be 208V 230V 120V and 24V Figure 18 CONTROL PANEL WIRING DIAGRAM L1 L2 L3 POWER INLET TO CONTROL CIRCUIT FB1 FB3 FB5 FB7 FB9 FB11 FB13 MC1 MC3 MC5 MC7 MC9 MC11...

Page 36: ...condition can cause uneven rapid expansion and contraction of the unit core tubing contributing to tube failures Violation of this condition is most often associated with electronic controllers and must be avoided through correct programming This also means do not program the header end fans s for equal run time The excessive tube stress within the unit due to rapid expansion and contraction of th...

Page 37: ...stem 350 series controller is used consult the wiring schematic for the unit ordered 7 9 Temperature Sensor For units with factory mounted fan cycling controls the fluid temperature sensor is installed into the bottom or fluid outlet header to sense the discharge fluid temperature On the end of the header usually on the left side of the unit a thermal well is installed into the header endcap and t...

Page 38: ... 15 DIFF 10 10 FAN ON 70 85 FAN OFF 60 75 SET 60 OFFSET 10 15 DIFF 10 10 10 FAN ON 70 80 85 FAN OFF 60 70 75 SET 60 OFFSET 5 10 15 DIFF 10 10 10 10 FAN ON 70 75 80 85 FAN OFF 60 65 70 75 SET 60 OFFSET 5 10 15 20 DIFF 5 5 5 5 5 FAN ON 65 70 75 80 85 FAN OFF 60 65 70 75 80 SET 55 OFFSET 5 10 15 20 25 DIFF 5 5 5 5 5 5 FAN ON 60 65 70 75 80 85 FAN OFF 55 60 65 70 85 80 SET 55 OFFSET 5 10 15 20 25 30 D...

Page 39: ...Fluid Cooler Series Air Cooled Fluid Cooling Units PN E208134_D 38 7 10 VFD OPERATION VFD Motor distribution block available for customer supplied VFD s FIGURE 21 TYPICAL VFD WIRING DIAGRAM ...

Page 40: ...d fluid coolers use Nidec BPM motors which use KB VFD s The VFD s come factory mounted in the control panel Airflow is increased decreased across the fluid cooler coil surface by modulating variable speed fans The below figure shows wiring schematics for the drives and motors Figure 22 Typical One Wide Unit Drawing with K Motor ...

Page 41: ...Fluid Cooler Series Air Cooled Fluid Cooling Units PN E208134_D 40 FIGURE 23 Typical Two Wide Unit Drawing with K Motor ...

Page 42: ...wire installed between FWD and COM switches to allow the motor to run SPECIAL NOTE for Failure Mode In the event of a drive failure or suspected failure the drive should not be by passed The motor will not operate without the drive Damage to the motor may result and will void the warranty KB DRIVE TRIMPOT SETTING FIGURE 25 KB Drive Minimum and Maximum Speed Setting ...

Page 43: ...1 6 1 5 F N A 5 4 2 1 3 0 2 5 2 5 K N A 5 4 N A N A 3 0 N A 7 14 FAN MOTOR COMBINATION KW Table 14a 14b Motor KW Ratings at 60Hz and 50Hz Watts shown are for a single fan and are multiplied by the number of the fans for units with more than one fan 7 15 ELECTRICAL MOTOR DATA AT 60 Hz Table 15 Fan Motor Ratings at 60Hz Electrical Motor KW rating power consumption at 60Hz to be 5 6 x power consumpti...

Page 44: ...rs guards and all other fasteners for tightness Be sure the thermostatic expansion valve bulb is properly located strapped and insulated With the system operating check the supply voltage It must be within 10 of the voltage marked on the unit nameplate LISTEN CAREFULLY to the unit to make sure there are no unusual sounds Sounds such as a noisy motor the fan s scraping on the housing or loose faste...

Page 45: ...Fluid Cooler Series Air Cooled Fluid Cooling Units PN E208134_D 44 9 REPLACEMENT PARTS LIST Figure 263 REPLACEMENT PARTS ...

Page 46: ...3P 120 1200RPM 3055269 MOTOR 1 5HP 460V 50 60Hz 3P 120 1200RPM 3080452 Drive 460V 50 60Hz KB 3080453 Drive 240V 50 60Hz KB 3059065 2 FAN 24 DIA CCW 5 8 BORE E206876 30 DIA CW 5 8 BORE E205493 30 DIA CW 5 8 BORE 112730 30 DIA CW 5 8 BORE E151977 30 DIA FOR E205492IN E206689IN E208056 30 DIA FOR 11503IN E205307IN E208057 30 DIA FOR E151976IN E151976A E208058 30 DIA 25 DEG CW 5 8 BORE 112720 3 FAN GU...

Page 47: ...3434 CENTER 2W W FRAME E203451 CENTER 1W W FRAME E203450 PARITION 2W E203435 PARITION 2W W FRAME E203452 13 SHELF MOUNT LEV2 PLENUM END CTR SHELF MNT 1W E208039 LEV2 PLENUM END CTR SHELF MNT 2W E208077 LEV2 PLENUM CTR SHELF W FRM 1W E208101 LEV2 PLENUM CTR SHELF W FRM 2W E208102 MTR SUPT SHELF UPPER 182 215T D256472 MTR SUPT SHELF LOWER 182 215T D256473 MOTOR SHELF 36 LENGTH 820390 14 FAN PANELS L...

Page 48: ...RNESS 6F 2W 12F LH 80596RB LEV2 WIRE HARNESS 2W 12F RH 80597RB ACVB I 1 LH WIRE HARNESS E83149 LEV2 B WIRE HARNESS 2F 2W 4F LH E83150RB LEV2 B WIRE HARNESS 2W 4F RH E83151RB LEV2 B WIRE HARNESS 3F 2W 6F LH E83152RB LEV2 B WIRE HARNESS 2W 6F RH E83153RB LEV2 B WIRE HARNESS 4F 2W 8F LH E83154RB LEV2 B WIRE HARNESS 2W 8F RH E83155RB LEV2 B WIRE HARNESS 5F 2W 10F LH E83156RB LEV2 B WIRE HARNESS 2W 10F...

Page 49: ...Fluid Cooler Series Air Cooled Fluid Cooling Units PN E208134_D 48 ...

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