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Hussmann KRACK MK Series, Инструкция по установке и эксплуатации

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MK/MV – Medium Profile Series Unit Coolers (E206993_M) 

35 

Figure 22 Air Defrost Controller Wire Diagram 

Содержание KRACK MK Series

Страница 1: ...MK MV Medium Profile Series Unit Coolers E206993_J Part Number E206993_M...

Страница 2: ...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 th...

Страница 3: ...nt that is subject to change Hussmann reserves the right to change all or part of the equipment for future stores such as but not limited to controllers valves and electrical specifications It is the...

Страница 4: ...______________21 5 1 FIELD WIRING ________________________________________________________________21 5 2 ELECTRICAL DATA _____________________________________________________________21 6 AIR DEFROST S...

Страница 5: ...9 4 2 LOGIN PAGE _____________________________________________________________48 9 4 3 SETTINGS PAGE ___________________________________________________________48 9 4 4 NETWORK SETUP PAGE____________...

Страница 6: ...C OR GAS DEFROST 16 Table 7 MV LOW TEMPERATURE HIGH VELOCITY ELECTRIC DEFROST 17 Table 8 MK SERIES AIR DEFROST 18 Table 9 MK SERIES ELECTRIC DEFROST 19 Table 10 MV SERIES LOW TEMPERATURE HIGH VELOCITY...

Страница 7: ...ND HOT GAS DRAIN PAN DEFROST WIRING 30 Figure 18 P KGE 2 PIPE KOOL GAS COIL AND ELECTRIC DRAIN PAN DEFROST WIRING 31 Figure 19 K KGG 2 PIPE KOOL GAS COIL WITH KOOL GAS DRAIN PAN DEFROST WIRING 31 Figu...

Страница 8: ...MK MV Medium Profile Series Unit Coolers E206993_M 5 Figure 45 NETWORK SETUP SCREEN 51 Figure 46 SETPOINTS SCREEN 52 Figure 47 REPLACEMENT PARTS 63...

Страница 9: ...a leak has developed in transit The system should not be charged with refrigerant until it is verified that there is no leak or the source of the leak is located 2 UNIT INFORMATION AND DIMENSIONS 2 1...

Страница 10: ...oward the door of the cooler to minimize the entrance of warm moist air when the door is open Light fixtures shelving and product boxes must be located so that they do not block the air intake or air...

Страница 11: ...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 The horizontal suction li...

Страница 12: ...or section of the system being protected To properly protect and control systems using pumped liquid overfeed R744 the solenoid isolation and pressure relief valves shall be arranged as shown in eithe...

Страница 13: ...system must be tested for leaks and then evacuated Refer to the instructions provided with your compressor system for information on performing the leak test and evacuation 4 4 MK HOT GAS DEFROST PIPI...

Страница 14: ...S COIL WITH ELECTR DP DEFROST PIPING Figure 7 K KGG 2 PIPE REVERSE CYCLE KOOL GAS COIL WITH KOOL GAS DP DEFROST PIPING Table 2 SUCTION CONNECTION 2 3 CIRCUITS 4 5 CIRCUITS 6 7 8 10 13 15 CIRCUITS 20 C...

Страница 15: ...esign conditions of 9 F to 11 F T D and 90 F 85 F electric and hot gas defrost liquid refrigerant at the expansion valve inlet If the unit will be operated at conditions that are substantially differe...

Страница 16: ...1 2 MK16A 145 2725 4 L 1 1 2 L 1 1 2 L 1 1 2 MK26A 172 5970 4 L 2 L 1 1 2 L 2 MK26A 236 5630 5 L 2 1 2 L 2 L 2 1 2 MK26A 290 5450 8 L 3 L 2 1 2 L 3 MK36A 354 8445 10 J 4 J 3 J 4 MK36A 435 8175 13 J 4...

Страница 17: ...L 1 L 1 1 2 MK16A 118 2815 3 L 2 L 1 1 2 L 2 MK16A 145 2725 4 L 2 1 2 L 2 L 2 1 2 MK26A 172 5970 4 L 4 L 2 1 2 L 2 1 2 MK26A 236 5630 5 L 5 L 4 L 4 MK26A 290 5450 8 L 6 L 5 L 5 MK36A 354 8445 10 J 8 J...

Страница 18: ...2 J 2 J 2 1 2 MK34 246 9180 15 G 3 G 2 G 3 MK34 315 8880 20 G 4 G 3 G 4 MK44 420 11840 20 G 5 G 4 G 5 MK16 76 2985 4 L 3 4 L 3 4 L 1 MK16 103 2815 5 L 1 L 1 L 1 1 2 MK16 127 2725 5 L 1 1 2 L 1 1 2 L...

Страница 19: ...J 3 J 3 J 4 MK34 246 9180 15 G 4 G 3 G 4 MK34 315 8880 20 G 5 G 4 G 5 MK44 420 11840 20 G 6 G 5 G 6 MK16 76 2985 4 L 1 1 2 L 1 L 1 1 2 MK16 103 2815 5 L 1 1 2 L 1 1 2 L 2 MK16 127 2725 5 L 2 L 1 1 2...

Страница 20: ...n valve and connect the equalizer tube The expansion valve should be installed directly to the distributor body or as close as possible with no elbows or bends Locate the expansion valve bulb on a hor...

Страница 21: ...A 172 17 200 25 800 SBFSE B C EGSE 1 1 2 C SBFVE A C EGVE 1 1 2 C SBFDE A C EGDE 1 C MK24A 188 18 800 SBFSE B C EGSE 1 1 2 C SBFVE A C EGVE 1 1 2 C 28 200 SBFSE B C EGSE 2 C SBFVE B C EGVE 2 C SBFDE B...

Страница 22: ...1 2 C MK26E 152 15 200 SBFVE A Z or ZP40 EGVE 1 1 2 Z or ZP40 17 200 SBFDE A C EGDE 1 C MK24E 164 16 400 SBFDE A Z or ZP EGDE 1 Z or ZP 18 800 SBFVE A C EGVE 1 1 2 C MK26E 206 20 600 SBFSE B Z or ZP...

Страница 23: ...1 Z or ZP40 MV14E 128 12 800 MV24E 146 14 600 SBFVE A Z or ZP40 EGVE 1 1 2 Z or ZP40 SBFDE A Z or ZP EGDE 1 2 Z or ZP MV16E 155 15 500 MV26E 186 18 600 SBFSE B Z or ZP EGSE 1 1 2 Z or ZP SBFDE A Z or...

Страница 24: ...deration must be taken when wiring single phase fan motors and defrost heaters If the total amp draw of the motors or heaters exceed the amp rating of the fan delay or heater safety switch then a cont...

Страница 25: ...0 MK26E 254 24 3 14 1 7 1 5600 7 3 5 800 MK34E 246 MK36E 309 28 7 16 7 8 3 6600 10 4 5 2 1200 MK34E 315 MK36E 381 36 5 21 2 10 6 8400 10 4 5 2 1200 MK44E 420 MK46E 508 47 8 27 6 13 8 11000 12 2 6 1 14...

Страница 26: ...nutes per hour Figure 8 AIR DEFROST WIRING 1 PH Figure 9 AIR DEFROST WIRING 3 PH 7 ELECTRIC DEFROST SEQUENCE OF OPERATION The electric defrost cycle is time clock initiated and temperature terminated...

Страница 27: ...timer which energizes the switching solenoid in the timer The timer disconnects power to terminal 3 thus turning off the defrost heaters At the same instant power is connected to terminal 4 of the ti...

Страница 28: ...S DELAY FAN AMP DRAWS OVER 5A MOTOR CONTACTOR 5A 240V INDUCTIVE 25A RESISTIVE FAN DELAY T STATS DEFROST TERMINATION HEATER SAFETY T STAT DELAY FAN MV 1 FAN ONLY MK 1 3 FAN FAN MOTORS B REQUIRED FOR BY...

Страница 29: ...MK MV Medium Profile Series Unit Coolers E206993_M 26 Figure 12 ELECTRIC DEFROST WIRING 208 230 60 3 Figure 13 ELECTRIC DEFROST WIRING 460 60 3...

Страница 30: ...FAN MOTORS T 1 T 3 T 2 N X H F B S 7 P 4 8 DRAIN PAN HEATER L 1 L 2 L 3 HEATERS COIL DEFROST TERMINATION FAN HEATER SAFETY T STAT DELAY 1 T ROOM T STAT FAN CONTACTOR BY OTHERS LIQUID SOLENOID DEFROST...

Страница 31: ...OTORS 2 THRU 4 HEATER SAFETY DRAIN PAN HEATER HEATERS COIL DEFROST TERMINATION T STAT DELAY FAN N X H F B S 7 P 4 8 T STAT ROOM 40A RESISTIVE 2HP INDUCTIVE RATED AT TIMER BY OTHERS CONTACTOR SOLENOID...

Страница 32: ...in pan heater The compressor pumps the refrigerant out of the coil 2 The timer contacts 4 and 2 closes thus energizing the hot gas solenoid valve and allows hot gas to flow into the coil through a che...

Страница 33: ...n pressure 8 4 SEQUENCE OF OPERATION 1 Power is supplied to the unit cooler continuously 2 Hot gas is supplied to the unit via the suction line A factory mounted thermostat senses a rise in coil tempe...

Страница 34: ...PIPE KOOL GAS COIL AND ELECTRIC DRAIN PAN DEFROST WIRING Figure 19 K KGG 2 PIPE KOOL GAS COIL WITH KOOL GAS DRAIN PAN DEFROST WIRING RECOMMENDED SPST FAN DELAY THERMOSTAT SETTINGS FOR KGE HGG ROOM TE...

Страница 35: ...controlling the evaporator it uses advanced fan control algorithms to maximize the energy efficiency of the coil 3 During normal operation the refrigeration cycle pulls the coil down to temperature a...

Страница 36: ...wing figure illustrates how the KE2 Evap OEM controller monitors the temperature difference between the coil and space to determine the optimum time to initiate defrost Figure 21 RECOGNITION OF NECESS...

Страница 37: ...Temp parameter 9 2 3 DRAIN SETTINGS The Drain Time parameter defines the time allotted for water to drip into the drain pans following defrost termination prior to initiation of the refrigeration cyc...

Страница 38: ...MK MV Medium Profile Series Unit Coolers E206993_M 35 Figure 22 Air Defrost Controller Wire Diagram...

Страница 39: ...MK MV Medium Profile Series Unit Coolers E206993_M 36 Figure 23 Air Defrost Slave Power Diagram...

Страница 40: ...eries Unit Coolers E206993_M 37 Figure 24 Air Defrost Slave Control Diagram Note Master and Slave configuration is only applicable to air defrost units the control signal from KE2 controller can suppo...

Страница 41: ...One of the issues created with this approach is a fogging effect KE Evap s electric defrost cycle pulses the defrost heaters to reduce fogging potential and achieve reduced energy consumption The fan...

Страница 42: ...MK MV Medium Profile Series Unit Coolers E206993_M 39 Figure 26 Electric Defrost Controller Wiring Diagram...

Страница 43: ...ult setting for Defrost Pump Down Time is 2 minutes for hot gas defrost units This parameter may be adjusted in the field based on the specific application liquid line length location of liquid line s...

Страница 44: ...MK MV Medium Profile Series Unit Coolers E206993_M 41 Figure 28 Hot Gas Defrost No Electrical Drain Pan Heater Controller Wire Diagram...

Страница 45: ...the board c Browse for the controller on the web using dynamic IP address allocated KE2 controller must be connected to the customer network and DHCP must be enabled in the settings Figure 23 CONNECTO...

Страница 46: ...p OEM has been programmed with a diagnostics mode When activated the controller energizes each relay for 60 seconds When the compressor relay is on the EEV will regulate to the Superheat setpoint 9 3...

Страница 47: ...MK MV Medium Profile Series Unit Coolers E206993_M 44 Figure 31 NETWORK AND SHARING CENTER 3 Right click Ethernet or Local Area Connection Wired Figure 32 NETWORK CONNECTIONS...

Страница 48: ...l Version 4 TCP IPv4 then choose Properties Figure 33 ETHERNET PROPERTIES 2 Select Radio Buttons Use the following IP address Enter the IP address 10 10 149 1 Enter Subnet mask 255 255 0 0 Enter Prefe...

Страница 49: ...ctory default is found on the sticker located on the back of the controller Figure 24 IP ADDRESS ON KE2 EVAP HARDWARE 9 3 4 NETWORK INTERFACE Assumption The controller is connected to the customer net...

Страница 50: ...Enter button again to toggle back to iP1 name d Repeat the above step until all iP2 iP3 and iP4 values are read 2 Open an internet browser Mozilla Firefox Google Chrome Internet Explorer and type the...

Страница 51: ...ettings page Network page and Setpoints page Figure 26 KE2 EVAP LOGIN PAGE 9 4 3 SETTINGS PAGE The Settings page contains controller configuration for email and web access It allows installers to cust...

Страница 52: ...evaporator applications and provides setup for adding controllers to an existing network Figure 40 KE2 EVAP NETWORK SETTINGS PAGE 9 4 5 SETPOINTS PAGE Allows the user to setup and customize the contro...

Страница 53: ...Figure 42 KE2 EVAP GRAPHS PAGE 9 5 BONDING When applied to larger systems up to 8 evaporators attached to the same condenser the distributed structure KE2 Evap controllers may be bonded over the TCP I...

Страница 54: ...dow and type the IP address of one of the controllers into the browser address field When the home page is loaded click Network at the bottom of the screen Figure 44 HOME PAGE 2 Click Login to Log int...

Страница 55: ...controllers to go into cooling mode at the same time Multi Evap Defrost will make all the bonded controllers go into defrost at the same time when Synchronized or limit the system to one evaporator g...

Страница 56: ...eed to configure the subsequent controllers one at a time to match the Multi settings of the first controller To accomplish this enter the IP address of the second controller in the browser and naviga...

Страница 57: ...is it is permissible to install a temporary jumper wire between terminals F and B or N and B depending on the unit wiring arrangement Once the box temperature is below 25 F the jumper wire should be r...

Страница 58: ...s seasonally 4 At least every six months check all fan motors Tighten motor mounting screws and fan set screws 12 TROUBLESHOOTING CHART Table 16 UNIT TROUBLESHOOTING CHART PROBLEM POSSIBLE CAUSES CORR...

Страница 59: ...put feature disabled Ed Intro Ed is blinking on the Remote Display yel low and red LEDs are flashing N A Not an alarm condition controller is in introduction mode Please refer to Q 1 45 for controller...

Страница 60: ...s to be replaced To verify accuracy of the sensor the preferred method is to place the sensor in a proper ice bath while connected to the controller View SUt on variables menu temperature should read...

Страница 61: ...ill continue until the Excess Defrost Alarm is triggered Relocate the coil sensor to where frost has built up the heaviest on the coil and initiate a defrost Check to make sure the defrost terminates...

Страница 62: ...system operation with the variables menu ValveTypes Abbreviation ScrollingText Full Name Description tHr tHr MECHANICAL Thermostatic Expansion Valve HS HS HSV KE2 Therm s Hybrid Stepper Valve rS rS RS...

Страница 63: ...Low Superheat Alarm is most commonly caused by the compressor failing to start compressor not running There is a common misconception in the industry that the low pressure switch cut in and cut out p...

Страница 64: ...for activate on closed circuit If the switch is verified to be inoperable replace the switch Confirm proper door switch operation by opening the door fans should turn off and refrigeration should sto...

Страница 65: ...SmartAccess the dashboard will show all registered controllers clicking on any controller will redirect to that controller s Masterview webpage Browsers commonly maintain a cache to improve the user e...

Страница 66: ...Unit Coolers E206993_M 63 14 REPLACEMENT PARTS LIST Listed below are the major replacement parts When ordering parts it is imperative that you obtain the complete model and serial number of the unit...

Страница 67: ...EG CW 1 2 BORE E106034 E106035 SWEPT WING BLADE MK QUIET EC MK 20 23 DEG CW 1 2 BORE 3072623 4 FAN GUARD E205672 5 END COVER E105008 6 BACK LEFT CORNER PANEL E105005 7 BACK RIGHT CORNER PANEL E105006...

Страница 68: ...1 FAN 460V E102025 2 FAN 230V E101932 2 FAN 460V E101938 3 FAN 230V E201696 3 FAN 460V E202697 4 FAN 230V E101935 4 FAN 460V E101941 18 CHECK VALVE 1 2 118520 5 8 118530 7 8 109300 1 18 118040 1 5 8 E...

Страница 69: ...E C C E205994 SBFSE AA C E206015 SBFSE A C E206013 SBFSE A ZP E205360 SBFSE B C E206014 SBFSE B ZP E205920 SBFSE C C E206016 SBFSE C ZP E311124 SBFVE AA C E205501 SBFVE AA ZP40 E205973 SBFVE A C E3111...

Страница 70: ...MK MV Medium Profile Series Unit Coolers E206993_M 67 Part Number E206993_M...

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