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Heatcraft H-IM-QRC, Installation And Operation Manual, Page: 39 / 40

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Heatcraft H-IM-QRC Installation And Operation Manual Download Page 39

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Summary of Contents for H-IM-QRC

Page 1: ...Button Monitoring Items 11 12 Monitor Button Force Defrost Button Reset Time Button Force Service Button Clear Test Button Locking The Heatcraft Quick Response Controller Board 12 Status Indicator LED 13 Pumpdown 13 Defrost 14 15 Alarms 15 Error Indicator 16 Checking Operation of Expansion Valve 17 18 Power Failures 18 Spare Sensor Terminals 18 Checking Sensors 18 Smart Controller 19 20 Sensor Res...

Page 2: ...ller Board Defrost Heater Relay Evaporator Fan Relay Room Temperature Defrost Temperature Suction Temperature Suction Pressure Expansion Valve Connection Selection Buttons LED Display Terminal Block Alarm Contacts Spare Temperature EXV Test Pins 2018 Heatcraft Worldwide Refrigeration ...

Page 3: ...e crankcase heater be energized 24 hours prior to start up The Heatcraft Quick Response Controller should be de energized for this period by placing it in the SERVICE MODE This is done by pressing the FORCE SERVICE button twice To start the system cooling press the CLEAR button Room sensors may be left connected on ALL evaporators Room sensor must be connected on the Master Coil A pressure transdu...

Page 4: ...ontroller systems the main power for the evaporator is supplied separately from the power supply of the condensing unit All wiring however must comply with local electrical codes Installation Wiring Wiring at the unit cooler s will be as follows see wiring diagrams High voltage There may be high voltage on the defrost heater relay and the fan relay The evaporator is connected to a separate power s...

Page 5: ...repeatedly until SLA appears then use the SELECT knob to select YES and press ENTER All Heatcraft Quick Response Controller boards are shipped with the factory default as a MASTER evaporator Place all boards in the SERVICE mode while you program the setpoints to avoid errors and alarms which may cause troubles at startup VERY IMPORTANT This must be done for each slave board prior to starting the s...

Page 6: ... the box temperature goes above the differential temperature before cooling will be restarted The on board room thermostat is factory set at 35 F for Air Defrost systems and 10 F for electric defrost system Box Temp Control Settings Leak Testing After all lines are connected the entire system must be leak tested The complete system should be pressurized to not more than 150 psig with refrigerant a...

Page 7: ...l wiring connections to be sure they are correct and tight On the condensing unit Check the low pressure switch setting on freezer units Refer to H IM CU Available on website On some condensing units the low pressure switch has a fixed setting and cannot be adjusted Turn power on On the MASTER evaporator DO NOT REMOVE the room sensor Use the PROGRAM REVIEW button to scroll through settings Check r...

Page 8: ...un based on fan stir cycle parameter The LED will alternately display oFF and BOX TEMPERATURE Start Up Operation When the room sensor detects a rise in temperature of approximately 2 F and the system has been off for at least 4 minutes the EEV will open to its last position and the system will start The valve is then adjusted as necessary to obtain the setpoint superheat setting During this time t...

Page 9: ... not be stored in the memory and thus will not be changed A E Set Defrost type Air or ELE rEF Set Refrigerant type R 22 R 404A R 507 R 407A R 407C R 407F R 448A or R 449A bot Set Box temperature 30 F to 70 F SUP Set Superheat 4 F to 20 F SLA Set Board as a Slave Yes or No ddF Demand defrost enable Yes or No dFn Set Number of defrosts per day 1 2 3 4 5 6 8 10 or 12 per day dFF Set Defrost Fail safe...

Page 10: ...ber of Defrost per Day dFn A selection must be made for the number of defrosts cycles per day 1 2 3 4 5 6 8 10 or 12 per day If no selection is made defaults electric defrost 4 per day and air defrost 2 per day Defrost fail safe dFF This is the maximum time allowed for a coil to remain in defrost Defrost will be terminated if the defrost end temperature is not attained when this time has expired O...

Page 11: ...oftware release program Use this button to FORCE DEFROST To force a defrost press the FORCE DEFROST button The system will pumpdown The heaters are then turned on The display will show dEF and room temp Use this button to RESET TIME Pressing this button will reset the time clock in the microprocessor to zero At initial power up pressing this button will bypass the four minute hold off and the syst...

Page 12: ...displayed Slave Evaps Coo Operating Mode is displayed Pumpdown All Evaporators Pdn DEFROST All Evaporators dEF TEST All Evaporators tSt SERVICE All Evaporators SEr ALARMS A 1 High Box Temp A 2 Low Box temp A 4 Input Fault Box Temp Suction Temp Pressure Transducer open or not installed STATUS INDICATOR LED A RED three digit alphanumeric LED on the Heatcraft Quick Response Controller board indicates...

Page 13: ... settings Pumpdown At the end of each cooling cycle when the box temperature is met the Heatcraft Quick Response Controller system will pump down To pumpdown the EEV closes and the board displays Pdn until one of the following occurs The suction pressure at the evaporator is 4 psig A total of two minutes has elapsed When any of these two conditions occurs the system will turn off and not restart u...

Page 14: ... start time for the next desired defrost period The defrost schedule will be correct until you have another power outage Pumpdown Defrost Service Mode A remote SERVICE switch can be added to the Heatcraft Quick Response Controller board across the SER and C connections of the terminal block Closing the SERVICE switch will cause the system to pumpdown and shut off SER will be displayed on the Heatc...

Page 15: ...m These contacts can be connected to a light a buzzer a bell etc which will be activated when an alarm condition occurs When the Heatcraft Quick Response Controller is energized the alarm contacts are OPENED When an alarm condition is detected the contacts are CLOSED Conditions under which the alarm contacts will close are High Box Temperature LED Display A1 Room temperature has exceeded the Alarm...

Page 16: ...ll not restart until the fault is cleared or the circuit breaker reset for the following conditions Suction sensor shorted open or not installed Room temperature sensor shorted or not installed Pressure Transducer open or not installed Evaporator Fans Shut Off In some installations it is desirable to shut off the evaporator fans periodically This is easily accomplished on Heatcraft Quick Response ...

Page 17: ...labeled A B C D This labeling is just for reference This can also be checked by using the EXV test pins on the board This is indicated by a 0 to 5 volts DC signal At 0 volts the valve is closed and at 5 volts the valve is fully open At values between 0 and 5 volts the valve will be opened proportionately Use the MONITOR button to display SCP Evaporator Suction Pressure Record the pressure displaye...

Page 18: ...e temperature range for this input is 30 F to 140 F Sensors on the Heatcraft Quick Response Controller system as supplied will not simulate product temperature This input can be monitored on the LED display by using the MONITOR button and scrolling to SPt The values displayed will be the temperature of the spare sensor Power Failures Checking Sensors DO NOT REMOVE SENSORS FROM EVAPORATORS FOR CHEC...

Page 19: ...select YES then press ENTER Use the Smart Controller to set system parameters See Heatcraft Smart Controller installation instructions for more details S S S M S S S M S S S M M S S S SMART CONTROLLER SYSTEM 1 SYSTEM 2 SYSTEM 3 SYSTEM 4 M Master Evaporator S Slave Evaporator If a remote interface is needed the Quick Response Controller can be used with a Remote Refrigeration Controller RRC via Sma...

Page 20: ...ng 3 Correct wiring between first Slave with error to previous board in the sequence Troubleshooting Guide 5 Line SMART Master Slave1 Slave 2 Slave 3 1 COMM E9 no error no error no error 2 COMM no error E9 E9 E9 3 COMM no error no error E9 E9 4 COMM no error no error no error E9 5 COMM no error no error no error no error 1 Use Remote Service Switch 1 Must terminate using same switch 2 Connection b...

Page 21: ...art Time dFS 0 hrs 0 hrs Alarm High Temperature ALH 50 F 5 F Alarm Low Temperature ALL 30 F 15 F Alarm Time ALt 60 min 60 min Temperature Units F C F F Off Cycle Fan Stir Cycle Enable FnS OFF OFF Table 1 Resistance Temperature Specification Temperature F Ohms Temperature F Ohms 104 5 320 32 32 650 86 8 060 23 42 330 77 10 000 14 55 330 68 12 490 5 72 950 59 15 710 4 97 070 50 19 900 13 130 410 41 ...

Page 22: ... parts for any OLD part numbers in the event a replacement part is needed The Table and notes below highlight key differences between the OLD and NEW parts NOTES 1 When using a new QRC Controller 28910103 with other boards in a system the new QRC will poll each board in the system to identify all board firmware versions Parameters will then only be displayed if the parameters are supported on ALL ...

Page 23: ...erformance standards with which all HRP brands are built backed by a dedicated team to serve every customer need delivering at the best lead times in the industry Visit www interlinkparts com or call 800 686 7278 for more information PART DESCRIPTION PART NUMBER Heatcraft Quick Response Controller Control Board 28910104 Temperature Sensor kit White Leads 89904902 Transformers 120 24 volt 40 VA 225...

Page 24: ...29326601 22 40 268793 20 47 245695 R 407A Evaporator Temperature F 100 psi Pressure Drop R 407C Evaporator Temperature F 100 psi Pressure Drop 20 20 20 20 PART NUMBER TONS BTUH TONS BTUH TONS BTUH TONS BTUH 29326101 0 99 11831 0 90 10808 1 07 12898 0 99 11862 29326201 4 23 50704 3 86 4632 4 61 55278 4 24 50839 29326401 6 34 76056 5 79 69481 6 91 82918 6 35 76258 29326501 14 80 177615 13 52 162259 ...

Page 25: ...nsor Check Sensor and Board Connection Replace as needed E3 Suction Sensor Check Sensor and Board Connection Replace as needed E4 Suction Transducer Check Transducer and Board Connection Replace as needed E5 Outdoor Sensor Check Sensor wiring and Board Connection Replace or remove 1 Check Refrigerant Type 1 Compare board setpoint and refrigerant 2 Check coil for ice 2 Defrost coil and check defros...

Page 26: ...splay Voltage could drop off too fast to show PROBLEM Step ACTION ITEM IF NOT OK Go to next step IF OK PROBLEM Step ACTION ITEM IF OK IF NOT OK E9 Multi out to Multi in 1 Check for 24 volts power to the board 1 If no voltage see LED is not lit on Page 24 Communication Wiring for low voltage see 888 LED display only shows after initial 2 Check for crossed communication wiring Go to 2 Correct wiring...

Page 27: ...coil for dirt debris 9 Clean condenser coil 10 Check condenser for non condensables 10 Remove all non condensables 11 Check condenser fan operation 11 Replace repair fan blade motor cycling switch or make corrective adjustments 12 Check for correct refrigerant type 12 Compare board setpoint and refrigerant 13 Check for iced evaporator coil 13 Defrost coil and check defrost cycle see E2 settings se...

Page 28: ...28 Wiring 24 VOLT CONNECTION WIRING HEATCRAFT QUICK RESPONSE CONTROLLER master with one slave connection ...

Page 29: ...29 Wiring 24 VOLT CONNECTION WIRING HEATCRAFT QUICK RESPONSE CONTROLLER master with three slave connection ...

Page 30: ...RAFT DWG 29702101 REV B SEE TABLE COM 6 4 6 4 VOLTAGE 115V 1PH 60 HZ 208V 230V 1PH 60HZ ELECTRICAL CODE AE BE BCN II QRC BOARD INPUT 24 V SUCTION LINE Room sensor located on the wire clip off the top panel flange ROOM TEMP SENSOR DEFROST TEMP HEADER END ELECTRICAL END Heatcraft Inc 24 VAC ROOM TEMP 2 PIN MOLEX DEFROST TEMP 2 PIN SUCTION TEMP 2 PIN SUCTION PRESSURE 3 PIN MOLEX 6 PIN MOLEX ALARM EVA...

Page 31: ...31 Wiring TYPICAL ELECTRIC DEFROST WIRING DIAGRAM ...

Page 32: ...ICAL CONDENSING UNIT WIRING DIAGRAM FACTORY WIRING FIELD WIRING 2 08 230V 60HZ 30 CONDENSING UNITS USE COPPER CONDUCTORS ONLY 208 230V 60HZ 30 CONDENSING UNITS USE COPPER CONDUCTORS ONLY FACTORY WIRING FIELD WIRING ...

Page 33: ...ENSING UNIT THIS WIRING SHOULD BE REMOVED DISABLED WHILE INSTALLING CSS CONTROLLER WITH CONVENTIONAL CONDENSING UNIT THIS WIRING SHOULD BE REMOVED DISABLED WHILE INSTALLING QRC CONTROLLER WITH CONVENTIONAL CONDENSING UNIT THIS WIRING SHOULD BE REMOVED DISABLED WHILE INSTALLING QRC CONTROLLER WITH CONVENTIONAL CONDENSING UNIT NO TIMER TIMER AIR ...

Page 34: ... Observe system pressures during charging and initial operation Do not add oil while the system is short of refrigerant unless oil level is dangerously low Preventive Maintenance 4 Check all fan motors Tighten motor mount bolts and nuts and tighten fan set screws 5 Clean the condenser coil surface 6 Check the refrigerant and oil level in the system 7 Check the operation of the control system Make ...

Page 35: ...igerant Type R404A Box Setpoint Temp 10 F Superheat 7 F No of Defrost Day ddf yes Defrost End Temp 65 F COOLER Refrigerant Type R22 Box Setpoint Temp 35 F Superheat 7 F No of Defrost Day 2 Defrost End Temp 50 F Service Record SYSTEM CHECKS Check Compressor Superheat for the COOLER Should be between 20 F 30 F YES NO Check Compressor Superheat for the FREEZER Should be between 20 F 30 F YES NO Force...

Page 36: ...IG Cooler suction pressure ______PSIG Freezer suction pressure ______PSIG Cooler suction temp ______ F Freezer suction temp ______ F Cooler refrigerant charge ______lbs Freezer refrigerant charge ______lbs Cooler compressor superheat ______ F Freezer compressor superheat ______ F Cooler evaporator superheat ______ F Freezer evaporator superheat ______ F Cooler discharge temp ______ F Freezer disch...

Page 37: ...37 Notes ...

Page 38: ...38 Notes ...

Page 39: ...39 Notes ...

Page 40: ... Commercial Refrigeration Parts The name behind the brands you trust Heatcraft Refrigeration Products LLC 2175 West Park Place Blvd Stone Mountain GA 30087 www heatcraftrpd com Customer Service and Technical Support Normal Business Hours 8 00 AM 8 00 PM EDT 800 321 1881 After Hours after 5 00 PM EDT weekends and holidays 877 482 7238 ...

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