Heatcraft H-IM-QRC Installation And Operation Manual
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Heatcraft H-IM-QRC Installation And Operation Manual

Quick response controller
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H-IM-QRC
Replaces H-IM-QRC (08/17)
Installation and
Operation Manual
Quick Response
April 2018
Heatcraft Quick Response Controller Board Layout ..................................... 2
Installation Tips .......................................................................................... 3
Refrigerant Line Brazing ............................................................................ 4
Power Supply............................................................................................. 4
Wiring ........................................................................................................ 4
Multiple Evaporator Configuration .............................................................. 5
Box Temperature Control Settings .............................................................. 6
Leak Testing .............................................................................................. 6
Start-Up Operation .................................................................................. 7-8
Operating Mode Display ............................................................................. 8
Programming and Reviewing Settings and Changes ............................. 9-12
Monitoring Items ................................................................................. 11-12
Monitor Button
Clear/Test Button
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 Resistance/Temperature Table ...................................................... 21
System Defaults ...................................................................................... 21
Back Compatibility ................................................................................... 22
InterLink Replacement Parts List .............................................................. 23
Operational Limits .................................................................................... 23
Expansion Valve Capacity ......................................................................... 24
Diagnostics ......................................................................................... 24-26
Wiring Diagrams ................................................................................. 27-32
Preventive Maintenance ........................................................................... 33
Service Record ................................................................................... 34-35
Controller
Part No. 29702401

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  • Page 1: Table Of Contents

    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 ..........

  • Page 2: Heatcraft Quick Response Controller Board Layout

    Heatcraft Quick Response Controller Board Layout Heatcraft Quick Response Controller Board Alarm Defrost Contacts Heater Relay Evaporator Expansion Valve Relay Connection Test Pins Display Selection Buttons Spare Temperature Room Temperature Defrost Temperature Suction Temperature Suction Pressure Terminal Block ©2018 Heatcraft Worldwide Refrigeration...

  • Page 3: Installation Tips

    The suction line temperature sensor MUST be diagram on page 32 shows how to convert a conventional removed from the suction line before brazing the condensing unit to use Heatcraft Quick Response Controller with the suction tubing. The sensor MUST then be reinstalled system.

  • Page 4: Refrigerant Line Brazing

    Low voltage wiring must be 18 gauge minimum. For low voltage wiring, maximum Power Supply distances are: The Heatcraft Quick Response Controller board gets its 24 VAC Between evaporators 500 ft. power supply from a transformer mounted in the electrical end of each evaporator.

  • Page 5: Multiple Evaporator Configuration

    S = Slave Evaporator Each Heatcraft Quick Response Controller board power is supplied by a transformer in the evaporator on which it is mounted. Do not run any 24 VAC wires between Heatcraft Quick Response Controller boards on the evaporators.

  • Page 6: Box Temperature Control Settings

    Leak Testing Box Temperature Control Settings • There is an on board room thermostat on the Heatcraft After all lines are connected, the entire system must be leak Quick Response Controller board which can be adjusted tested. The complete system should be pressurized to not more than 150 psig with refrigerant and dry nitrogen.

  • Page 7: Start-Up Operation

    Start-Up Operation Start-Up Operation Single System With Multiple Evaporators Single System With 1 Evaporator • Check all wiring connections to be sure they are correct and tight. • Check all wiring connections to be sure they are • On the condensing unit correct and tight.

  • Page 8: Operating Mode Display

    2 minutes before shutting off even The four minute “HOLD-OFF” can be bypassed and the system if the box temperature is met). started immediately by pressing the “RESET” button on the Heatcraft Quick Response Controller board. The LED alternately displays BOX TEMPERATURE and MODE of operation.

  • Page 9: Programming And Reviewing Settings And Changes

    Programming & Reviewing Programming And Reviewing Settings/Changes “PROGRAM REVIEW” ITEMS The PROGRAM REVIEW button is used to program, review and change all program settings for the system. A-E - Set Defrost type (Air or ELE) Press “PROGRAM REVIEW” button. The setpoint item will appear on the LED.
  • Page 10 • Demand Defrost Enable –“ddF” – Demand defrost is the LED display of the Heatcraft Quick Response Controller available for electric defrost systems only. Selection is board. made to enable demand defrost by a selection of “Yes” or to not enable demand defrost by a selection of “No”.

  • Page 11: Program Review Button Select Button Enter Button Monitoring Items

    Programming & Reviewing Use this button to “FORCE DEFROST”. To force a defrost, press the “FORCE DEFROST” button. The system will pumpdown. The heaters MONITOR are then turned on. The display will show “dEF” and room temp. FORCE DEFROST Use the “MONITOR” button to review these items: - Superheat (°F/°C) - Expansion valve steps...

  • Page 12: Locking The Heatcraft Quick Response Controller Board

    This will prevent unauthorized personnel program changes. To unlock, repeat steps above. LED will display “UnL”. STATUS INDICATOR LED A RED, three-digit , alphanumeric LED on the Heatcraft Quick Response Controller board indicates status, alarms and error codes. • OFF...

  • Page 13: Status Indicator Led

    Unlock the board 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: •...

  • Page 14: Defrost

    Defrost Delay Start Time Example: The system is first powered up at 8:00 AM and is A remote “SERVICE” switch can be added to the Heatcraft Quick programmed for 4 defrost per day. The user would like the first Response Controller board across the “SER” and “C” connections defrost at 10:00 AM.

  • Page 15: Alarms

    Alarms Clearing Alarms Heatcraft Quick Response Controller provides a set of dry contacts for use in signaling an alarm. These contacts can be connected to Alarms A1 – High Box Temperature and A 2 – Low Box Temperature a light, a buzzer, a bell etc., which will be activated when an alarm...

  • Page 16: Error Indicator

    Air Defrost fan motors must be wired through the fan relay on the Heatcraft Quick Response Controller board for this to be effective on Air Defrost systems. The entire system will be shut off and remain...

  • Page 17: Checking Operation Of Expansion Valve

    Checking Operation of Expansion Valve Checking Operation Of Expansion Valve (EEV) To check if the expansion valve is closing properly: This can also be checked by using the EXV test pins on the board. Install a pressure gauge-set to suction line at the condensing This is indicated by a 0 to 5 volts DC signal.

  • Page 18: Power Failures

    Power Failures Power Failures Checking Sensors In the event of a power failure, Heatcraft Quick Response Controller DO NOT REMOVE SENSORS FROM EVAPORATORS FOR CHECKING. will automatically close the expansion valve to prevent refrigerant from migrating throughout the system. After power returns, with 24...

  • Page 19: Smart Controller

    Multiple Systems With Multiple Evaporators (Requires A Smart Controller) • Check all wiring connections to be sure they are correct and • On the SLAVE evaporators. All Heatcraft Quick Response tight. Controller boards are shipped with the factory default as a “MASTER” evaporator.
  • Page 20 Smart Controller (cont.) Troubleshooting Guide PROBLEM Step ACTION ITEM IF OK IF NOT OK Multi-out to Multi-in 1. Check for 24 volts power to the board I f no voltage, see “LED is not lit” above Communication Wiring for low voltage, see “88888 LED display” (only shows after initial 2.

  • Page 21: Sensor Resistance/Temperature Table

    System Defaults Table 1. Resistance/Temperature Specification Temperature °F Ohms Temperature °F Ohms 5,320 32,650 8,060 42,330 10,000 55,330 12,490 72,950 15,710 97,070 19,900 130,410 25,400 176,960 Table 2. System Defaults PARAMETERS CODE ELECTRIC Refrigerant R-404A R-404A Box Temperature 35°F -10°F Superheat 7°F 7°F...

  • Page 22: Back Compatibility

    Back Compatibility In order to accommodate updates in technology and in industry, new QRC part numbers were created to handle a number of enhancements. The “NEW” part numbers listed below will serve as service 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.

  • Page 23: Interlink Replacement Parts List

    InterLink is your link to a complete line of dependable and certified commercial refrigeration parts, accessories and innovative electronic controls for all Heatcraft Refrigeration Products (HRP) brands - including Bohn, Larkin, Climate Control and Chandler. At InterLink, we provide our wholesalers with a comprehensive selection of product solutions and innovative technologies for the installed customer base.

  • Page 24: Expansion Valve Capacity

    Expansion Valve Capacity Table 5. Evaporator Temperatures R-22 R-404A/R-507 Evaporator Temperature (°F) Evaporator Temperature (°F) 100 psi Pressure Drop 100 psi Pressure Drop 50839.25 PART NUMBER TONS BTUH TONS BTUH TONS BTUH TONS BTUH 29326101 0.44 5220 0.41 4920 0.73 8706 0.64 7692...

  • Page 25: Diagnostics

    Diagnostics Heatcraft Quick Response Controller Troubleshooting Guide PROBLEM Step ACTION ITEM IF OK IF NOT OK Check Primary Power Supply Disconnect 1. Check fuses and circuit breakers Check Voltage to Evaporator Transformer Go to 2. Check field wiring for breaks LED is not lit.

  • Page 26: Wiring Diagrams

    Diagnostics Heatcraft Quick Response Controller Troubleshooting Guide (continued) PROBLEM Step ACTION ITEM IF OK IF NOT OK Multi-out to Multi-in 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”...
  • Page 27 Diagnostics Heatcraft Quick Response Controller Troubleshooting Guide (continued) PROBLEM Step ACTION ITEM IF OK IF NOT OK Check system operation: Is it running? Check power to condensing unit Check position of Service Mode switches Check compressor overloads and contactor Check system charge...
  • Page 28 Wiring 24 VOLT CONNECTION WIRING- HEATCRAFT QUICK RESPONSE CONTROLLER master with one slave connection...
  • Page 29 Wiring...
  • Page 30 Wiring EXPANSION VALVE EXPANSION VALVE...
  • Page 31 Wiring...
  • Page 32 Wiring TYPICAL CONDENSING UNIT WIRING DIAGRAM...
  • Page 33 Conventional Condensing Unit Wiring Conversion NO TIMER THIS WIRING SHOULD BE REMOVED/DISABLED THIS WIRING SHOULD BE REMOVED/DISABLED WHILE INSTALLING CSS CONTROLLER WITH WHILE INSTALLING QRC CONTROLLER WITH CONVENTIONAL CONDENSING UNIT CONVENTIONAL CONDENSING UNIT TIMER AIR THIS WIRING SHOULD BE REMOVED/DISABLED THIS WIRING SHOULD BE REMOVED/DISABLED WHILE INSTALLING CSS CONTROLLER WITH WHILE INSTALLING QRC CONTROLLER WITH...

  • Page 34: Preventive Maintenance

    Preventive Maintenance EVAPORATORS 4. Check all fan motors. Tighten motor mount bolts All evaporator units should be checked once a month or more often and nuts and tighten fan set screws for proper defrosting because the amount and pattern of frosting can vary greatly.

  • Page 35: Service Record

    • Check system for refrigerant leaks. Are there any leaks on the COOLER, FREEZER, CONDENSING UNIT or INTERCONNECTING SETTINGS PIPING? • Check Heatcraft Quick Response Controller board settings for the following: • Check system piping for unusual vibration or noise. Is there FREEZER...
  • Page 36 Service Record RECORD OUTDOOR TEMPERATURE ______°F SYSTEM VOLTAGE ______Volts ______PH ______Hz Cooler compressor amps ______L1 ______L2 ______L3 Freezer compressor amps ______L1 ______L2 ______L3 Cooler discharge pressure ______PSIG Freezer discharge pressure ______PSIG Cooler suction pressure ______PSIG Freezer suction pressure ______PSIG Cooler suction temp. ______°F Freezer suction temp.
  • Page 37 Notes...
  • Page 38 Notes...
  • Page 39 Notes...
  • Page 40 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)

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