Installation and Operation Manual

Transcription

1 Heatcraft Smart ontroller H-IM-0E April 0 Part No Replaces H-IM-0D (0-) Installation and Operation Manual Table of ontents Features...- Installation Tips... Wiring... Power Supply... Initialization of Smart ontroller... Button Functions... Programming Smart ontroller... Monitoring Smart ontroller... Locking Smart ontroller... 0 Error odes... 0 Writing Errors... Alarm odes... Alarm Buzzer... Data Logging... Smart Defrost... System Defaults... Wiring Diagrams...-

2 Heatcraft Smart ontroller Features The Smart ontroller performs all the standard Beacon II and QR functions with the additional benefit of: a) Remote mounting for easy access b) Remote monitoring and programming c) ontrolling a maximum of four completely separate systems d) Logging data e) Smart Defrost f) Access via remote Gateway Smart ontroller allows complete monitoring and programming of the system. The ontroller display has the following buttons: OOLG, DEFROST, PROG REVIEW, MONITOR, ENTER, LEAR, SETPOT AND TIME. The normal LD display will show the programmed box setpoint temperature, actual box temperature, the current time of day and the mode (i.e. OOL, DEFROST or OFF). When multiple systems are being controlled, the system number (i.e. SYS, SYS, SYS, SYS ) will also be displayed on the LD. Operational Limits g) Has buzzer to signal alarms h) Locking keypad Voltage Range VA to 0 VA Surrounding Ambient Temp. Range 0 F to 00 F Relative Humidity 0% to Maximum ontrolling Box Temperature Range -0 F to 0 F Box Temperature Differential F Do not mount the Smart ontroller where it will experience heavy vibration, such as near a Walk-in Box door. 0 Heatcraft Worldwide Refrigeration

3 Features of the Smart ontroller Heatcraft Smart ontroller Features Monitoring of the complete refrigeration system. Programming of a variety of parameters for the optimum control of the refrigeration system. The Smart ontroller has a Liquid rystal Display (LD) which shows: current time, actual box temperature, box temperature set-point and if there is an alarm or fault condition. Data Logging. Smart Defrost to save energy on defrost. Sounds a buzzer to indicate an Alarm condition. an be mounted up to 000 ft. away from the system being controlled. Each Smart ontroller can control four independent systems with up to evaporators on each system or systems with evaporator boards. An RS port is provided which allows connection to system via RR Gateway. (See H-IM-RR at A Backup battery will maintain the clock settings for 0 years. Double E PROM hip will maintain program settings indefinitely. Password protection system, with purchase of Smart software. Locking feature to prevent unauthorized access to program settings. Box Set-point Temperature System Number Time of Day Set-point Slide Bar Defrost Time Set-point Slide Bar Operating Mode Box Temperature Keys for Interface with System(s) Systems Selection Bar

4 Installation Installation The Smart ontroller should be installed in a location where the large Liquid rystal Display (LD) can be viewed easily, yet is secure and vibration free. Because of the LD screen, the Smart ontroller should not be mounted where it will experience temperatures below 0 F or above 00 F. Terminal Strip A terminal strip for wiring connections is located on the base of the Smart ontroller. To access this terminal strip, pull both halves of the Smart ontroller housing apart, while holding top near LD display. Mounting holes are located in the plastic base. Alarm ontact Ground Terminal RS onnector

5 Wiring Wiring All volt wiring must be run separate from the line voltage wiring. All low voltage wiring must be gauge minimum and must be run separate from high voltage wiring. The maximum distance from the Smart ontroller to the master evaporator is 000 ft. The terminal strip in the Smart ontroller is labeled similarly to that of the Beacon II boards. onnect the corresponding terminals to those on the Beacon II board. For Single Refrigeration System: onnect from the Smart ontroller to the on the Beacon II or QR board on the Evaporator. Then connect from the Smart ontroller to the on the Beacon board on the evaporator. See typical wiring diagram at the back of these instructions. On systems with multiple evaporators, the Smart ontroller must be wired to the master evaporator first. DO NOT disconnect the room sensor from any of the evaporators. For PLE Independent Refrigeration Systems: For the first system, connect from the Smart ontroller to the on the board on the evaporator in this first system. Then connect from the Smart ontroller to the on the Beacon II or QR board on the evaporator on this first system. DO NOT disconnect the room sensor from any of the evaporators. See typical wiring diagram at the back of these instructions. For the second system, connect from the Smart ontroller to the on the Beacon II or QR board on the evaporator in this second system. Then connect from the Smart ontroller to the on the Beacon II or QR board on the evaporator on this second system. See typical wiring diagram at the back of these instructions. On systems with multiple evaporators the Smart ontroller must be wired to the master evaporator first. DO NOT disconnect the Room sensor from any of the evaporators. SGLE SYSTEM ONNETION DO NOT ONNET & BETWEEN EVAPORATORS. The Smart ontroller and the evaporators are then connected in a daisy chain fashion. (See the wiring diagrams in the back of this manual) Smart ontroller M = Master Evaporator S = Slave Evaporator U = ondensing unit A minimum gauge wire should be used. All low voltage wiring must be run separate from high voltage wiring. PLE SYSTEM ONNETION SYSTEM SYSTEM SYSTEM Smart ontroller SYSTEM M = Master Evaporator S = Slave Evaporator U = ondensing unit

6 Power Supply Power Supply The Smart ontroller V power should come from one of two sources:.) When the RS- port on the Smart ontroller is NOT used: Power typically comes from one evaporator in the Beacon II or QR system. and OM connections should be wired to the Beacon II or QR board. The evaporator power supply should be floating (not grounded). The Beacon II or QR evaporator board is grounded through its mounting screws. The grounding terminal on the Smart ontroller should be connected to a good ground - typically in the evaporator electrical panel..) When the RS- port on the Smart ontroller IS connected to a device: A dedicated power supply must be used, separate from the Beacon II or QR board(s) power supply. and OM connections should be wired to this power supply. Typical power supply would be a A universal Plug-in Power Source with a minimum current rating of 00mA. The power supply should be floating (not grounded). The grounding terminal on the Smart ontroller should be connected to a good ground - typically in the evaporator electrical panel. If the Smart ontroller LD displays all, this indicates that the power supply is below VA. When this occurs, the connected Beacon II or QR components will power down and shut off. When the power supply is corrected to A, the system will restart after a minute hold-off period and resume normal operation. The Smart ontroller display will then be normal. If a power interruption occurs to the Smart ontroller, the LD screen will go blank. The connected Beacon II or QR systems will continue to operate and maintain box temperature provided their power supply is not interrupted.

7 Initialization of Smart ontroller Initialization of Smart ontroller When power is first applied to the Smart ontroller, it checks the configuration of the system to which it is connected and stores this in its memory. Smart ontroller checks how many condensing units there are and how many evaporators are connected to each condensing unit. The order in which the units are wired from the multi-out of the Smart ontroller determines the unit ID (UNI-) assigned by the Smart ontroller. This is called initialization. Whenever a system is added, removed or modified (changing the number of evaporators on a condensing unit), while connected to the Smart ontroller, it must be re-initialized. Place all systems in the service mode before initializing the Smart ontroller. Make sure all wiring changes to the system and the Smart ontroller are complete and accurate before initializing the Smart ontroller. Each SLAVE Evaporator must also be programmed as a SLAVE BEFORE the system is initialized. The SLA setpoint must be set from the board programming. It cannot be done from the Smart ontroller. To Initialize the Smart ontroller Press and Hold both the ENTER and LEAR buttons until the LD displays EEROM Release the ENTER and LEAR buttons quickly, then press the ENTER button The LD will display WAIT If unsuccessful NO HG will be displayed It may take up to minutes to complete the initialization of the system after which the normal LD screen will appear. BUTTON FUNTIONS SYSTEM SELETION BAR: If two or more systems are being controlled from the Smart ontroller, this bar allows switching between systems. The display will show the SYS number and all parameters related to that system. The cover plate of Smart ontroller when pushed will also change the display between systems. LOK (+ -): This is used to set the time of day on the display. Depress the + button to move the clock forward Depress the - button to move the clock backward When in PROG Mode, these are used to step through values for setting superheat etc. for each evaporator of the system(s) attached to the Smart ontroller and for different defrost start time periods. OOLG: Depressing this button will start the system in the cooling cycle immediately (The minutes Hold Off is bypassed). This button will illuminate to indicate that the ooling function is ON. System operation will be as described under REFRIGERATION MODE in the Beacon II or QR installation manual. Pressing the OOLG button while the system is cooling, and the button illuminated, will pumpdown the system and turn it off. DEFROST: Depressing this button will force the system into defrost immediately (The Hold Off/Hold On times are bypassed). This button will illuminate to indicate that the Defrost function is ON. When in Defrost, pressing this button a second time will end defrost. MONITOR: Depressing the MONITOR button will display the setpoints shown on page. If one Smart ontroller is controlling two or more independent systems, you must press the SELETION BAR to display information on the system you want to monitor. If multiple evaporators are connected to the system displayed, you must press the + or buttons to display information on the evaporator you want to monitor. PROG REVIEW: This button allows stepping through each of the setpoints for initial setup and to make changes. If one Smart ontroller is controlling two or more independent systems, you must press the SELETION BAR to display information on the system you want to make program changes. If multiple evaporators are connected to the system displayed, you must press the + or buttons to display information on the evaporator you want to monitor. LEAR: Used to clear incorrect entries while programming or to return to the System display when monitoring. TIME: Slide-bar is used to set the thermostat clock for Defrost times. SETPOT: Slide-bar is used to change settings while programming. ENTER: To enter new settings into the program. NOTE: Settings are recorded in memory even if power fails.

8 Programming Smart ontroller Programming Beacon II Smart ontroller To make a change, press the PROGRAM REVIEW button until the setpoint item that needs to be changed is displayed. The SETPOT Slide-bar is then used to change to the desired new setting. When the new desired setting is displayed, press the ENTER button. The new setting is now programmed into the Smart ontroller memory. Programming Smart ontroller DEFSAF Defrost Fail Safe Time: 0 to 00 minutes. When this time has elapsed, the defrost cycle will end, even if the programmed Defrost Termination temperature was not achieved. Use SETPOT slide-bar to select desired time, then press ENTER. Press the PROGRAM REVIEW button and follow the steps below (to back up one step during programming, while pressing the MONITOR button, press the PROGRAM REVIEW button): DEFTYP ELE or AIR: Select for Electric Defrost or Air Defrost then press ENTER. This selection will automatically set the defaults for Air and Electric Defrost. Important: This will set the refrigerant type to R0A for Air and R0A for Electric. You must change to the refrigerant you are using in your application if these are incorrect. REFTYP Selection for type of refrigerant R- (), R-0A (0), R-0 (0), R-0A (A), R-0 (), R-0F (F), RA (A), RA (A). BOXTMP Box Temp: -0 F to 0 F. Use SETPOT slide-bar to get desired temperature, then press ENTER. SUPRHT Superheat: to 0 F. Use SETPOT slide-bar to select desired superheat temperature, then press ENTER. If multiple evaporators are connected, use the + button to set other evaporators on this system. SMT DFT Smart Defrost: On/Off. Use SETPOT slide-bar to turn it ON or OFF, then press ENTER - (for version.. When Smart Defrost is turned on, defrost periods per day will automatically be programmed. These will be at :00 am, :00 am, :00 am, :00 am, :00 pm, :00 pm, :00 pm, and :00 pm. Also, the defrost fail safe time will be set to 0 minutes, and the defrost termination temperature will be set to F. The user can change these as needed for the application). DMD DFT Demand Defrost: On/Off use SETPOT slide-bar to turn it ON or OFF, then press ENTER. (The defrost fail-safe time is defaulted to 0 minutes, and the defrost termination temperature will be set to F). DEF ST - Defrost Start time: Up to settings per day (For df, use the TIME slide-bar to select first defrost time, then press ENTER. Use + button to scroll to next defrost period, df, use TIME slide-bar to select second defrost time and press ENTER. Repeat steps for each required defrost period). If defrost times are not programmed the system will use the defaults: Electric Defrost - four per day at :00 AM, 0:00 PM, :00 PM, 0:00 AM. Air Defrost - two per day at :00 AM, :00 PM. DEFTMP Defrost Termination Temperature: 0 to 00 F. Use SETPOT slide-bar to select desired temperature, then press ENTER. If multiple evaporators are connected, use the + button to set other evaporators on this system. ALR HI Alarm High Temperature. -0 to 0 F. Use SETPOT slide-bar to select desired temperature, then press ENTER. ALR LO Alarm Low Temperature -0 to 0 F. Use SETPOT slide-bar to select desired temperature, then press ENTER. ALRM Alarm Time, in minutes. ondition must exceed before alarm is indicated: to 0 minutes. Use SETPOT slide-bar to select desired time, then press ENTER. F/ F or. Use SETPOT slide-bar to select then press ENTER. /H lock: H is for standard time. H is for international time. Use SETPOT slide-bar to select, then press ENTER. FNSTIR Evaporator fan stirring: On/Off. Use SETPOT slide-bar to turm it On or Off, then press ENTER. TEST OFF or ON: Puts all evaporators in TEST mode. Use with aution. This will cycle each output at 0 second intervals. Use SETPOT slide-bar to select, then press ENTER. Return to OFF and then press ENTER to end the test. VI ON or OFF: When placed in the ON mode this will pump the system down and shut it off. The system will not restart until VI is placed back in the OFF mode. When multiple evaporators are connected as master/slave, depressing the + or - button will display information specific to each evaporator. Units in a master/slave connection are numbered through. The first evaporator connected to the SMART ONTROLLER - Terminals is Evaporator #.

9 Monitoring Smart ontroller Monitoring Smart ontroller The monitoring function can be used to monitor live system data. The information displayed, such as super-heat, is the actual superheat of the system as it is changing. Press the MONITOR button and follow the steps below (to back up one step during monitoring, while pressing the PROGRAM REVIEW button, press the MONITOR button): SUPRHT Superheat (use + button to check superheat of other evaporators, if Master/slave) EXVSET Expansion valve step setting (Stepper Motor setting 0 to steps: use + button to check other evaporators if Master/slave) SUTMP Evaporator Suction temperature (Measured by the Suction Sensor) When multiple evaporators are connected as master/slave depressing the + or - button will display information specific to each evaporator. Units in a master/slave connection are numbered through. The first evaporator connected to the SMART ONTROLLER - Terminals is Evaporator # and must be a master board. MODBUS OFF By default MODBUS OFF should show on the Smart controller. The new Smart controller has two ports: RS and RS. MODBUS communication is via RS, and Smart II software for P is via RS. The hardware interface is available for the MODBUS communication, but the current software version does not have MODBUS protocol. SSVTMP Saturated Suction temperature at the Evaporator (Determined by Suction Transducer) SUPRE Evaporator Suction Pressure (Measured by Suction Transducer) OD TMP Actual outdoor ambient temperature (Measured at the ondensing Unit) DEFTMP Evaporator coil temperature (Used to terminate defrost) DEFTIM Defrost Time: Length of last defrost MPY omp ycles: No of ompressor ycles since :00 midnight MPRUN omp run time (Measured since :00 midnight) SPRTMP Spare sensor temperature input VERSON Software Version: For each Beacon II ontroller (use + button to check other evaporators, if Master/ slave) VERSON Software Version: for Smart ontroller

10 Locking Smart ontroller Locking The Heatcraft Smart ontroller Board SMART ONTROLLER is lockable to prevent programmed settings changes by unauthorized personnel. When the ontroller is Locked, all the Buttons, except for the MONITOR and PROGRAM REVIEW Buttons, are disabled. To LOK the settings, do the following: Press PROGRAM REVIEW button. Press and hold MONITOR button. While holding MONITOR button, press ENTER button. The LED will display Loc. This will prevent unauthorized persons from changing any settings for system displayed.to UNLOK the ontroller, repeat these steps. LD will display UNLOK. Note: Each system must be locked or unlocked separately. Error odes *BXSEN - Room temperature sensor shorted, open or not installed *DFSEN - Defrost temperature sensor shorted, open or not installed *STSEN - Suction Temperature sensor shorted, open or not installed *SPSEN - Suction pressure transducer shorted, open or not installed *ODSEN - Outdoor temperature sensor shorted *SUPLO - Superheat too low *SHTDN - ompressor shutdown (High or low refrigerant pressure or low oil pressure) The error code will flash alternately with the normal display information. When the error condition is corrected, the error code will no longer be displayed and only the normal information will be displayed. *All errors for all units connected to the Smart ontroller will be displayed with an appropriate indicator for the unit experiencing the error. The individual boards will also display the errors. 0

11 Writing Error & Alarm odes Writing Error If the Smart ontroller LD displays +OMM+, this indicates that there is an error in the communication wiring or that the wiring is broken or disconnected. Occurrence of this error on the connected unit will indicate which wires are faulty. The communication wiring is the and connections. heck to make sure the is connected to. Never connect to or to. Alarm odes *BOXl: Box temperature too high *BOXLO: Box temperature too low *STRUP: System Start-up failure (ompressor pumps down and tries to restart after minutes.) *FLT: Input fault (Box Temp., Suction Temp., Pressure Transducer open or not installed) Power failure When an condition occurs, the Smart ontroller will display ALL FOR VIE, the code, the SYSTEM Number and will sound an internal buzzer along with the closure of alarm contacts on controller. The alarm code will flash alternately with the normal display information. When the alarm condition is corrected, the alarm code will no longer be displayed and only the normal information will be displayed. The system will pumpdown and cycle off and will not restart until the fault is cleared for the following conditions: Suction sensor shorted, open or not installed Room temperature sensor shorted, open or not installed on master Pressure Transducer open or not installed The system will pumpdown, cycle off and try to restart for three consecutive times. Each try will be after the minutes Hold Off period, for the following fault conditions: Oil pressure High pressure or low pressure cutout (or any other compressor safetys) After the fourth try, the alarm contacts will be closed and an alarm message displayed on the LD screen. To clear this condition, the system should be cycled through the VIE mode after correction is complete. On Multiple systems the alarm contacts on each of the Master Evaporators will also announce alarms for that system. Alarms on slave evaporators will only occur for input fault and power failure.

12 Alarm Buzzer and Data Logging Alarm Buzzer The buzzer will sound when an alarm condition occurs. This buzzer will turn off when the alarm condition is cleared. The buzzer can also be silenced at any time by pressing the LEAR button. Data Logging Smart ontroller logs system data in its memory every minutes. The length of time it records data is dependent on how many systems are being controlled by the Smart ontroller. It keeps writing data to its memory until the memory is full. When the memory is full, it will overwrite its oldest stored data in memory with newly recorded data. On multiple evaporator systems, the data recorded is from the master evaporator only. This data is available via remote connection through the Smart ontroller s RS serial port. The data can be viewed using RR Gateway. (See H-IM-RR on the website). Data recorded: (from master board) System Mode, Box Temperature, AUX Temperature, Superheat, Suction Pressure and the Number of ompressor cycles since midnight. Errors and Alarms recorded: Date, Time, System #, Unit #, Error type, Alarm type, Error duration and Alarm duration Length of data recorded: One System = 0 days Two Independent Systems = days Three Independent Systems = 0 days Four Independent Systems = days Recording intervals: Every minutes All recorded data will have a date/time stamp.

13 Smart Defrost Smart Defrost The Smart ontroller continuously monitors the system performance to determine the need for defrost. It uses a variety of data such as the outdoor ambient and box temperature in it s decision making process. Activating Smart Defrost After your system has been running for a week or two with normal defrost operation and the system has operated normally with no problems, you may consider activating Smart Defrost. You must program multiple defrost times into the Smart ontroller to provide flexibility for the system to defrost the coil properly. Smart Defrost will only allow the system to defrost at a programmed defrost time. The system will not defrost in between programmed defrost times. Hence, we recommend that a minimum of defrost periods be programmed when Smart Defrost is turned on. The system will have the potential to defrost eight times per day to keep the coil clear and to allow the system to operate at optimum condition. Demand Defrost Demand defrost is available for electric defrost systems only. To activate Demand defrost, press the "PROGRAM REVIEW" button until "DMD DFT" is displayed. Move the "SETPOT" slide-bar to "ON" then press 'ENTER"/ Press "LEAR" to return to the Main Screen. When Demand defrost is turned on, the Smart ontroller will monitor system performance and will only call for a Defrost when necessary. Demand defrost does not utilize defrost periods, so all defrost period times will be cleared with the selection of "DMDDFT". To activate Smart Defrost, press the PROGRAM REVIEW button until SMTDFT is displayed. (Also, it is recommended that the defrost fail-safe time be increased to 0 minutes). Move the SETPOT slide-bar to ON then press ENTER. Press LEAR to return to the main screen. When Smart Defrost is turned on, defrost periods per day will automatically be programmed. These will be at :00 am, :00 am, :00 am, :00 am, :00 pm, :00 pm, :00 pm, and :00 pm. Also, the defrost fail safe time will be set to 0 minutes, and the defrost termination temperature will be set to F. The user can change these as needed for the application. Deactivating Smart Defrost To turn Smart Defrost off, move the SETPOT slide bar to OFF then press ENTER. Press LEAR to return to the main screen.

14 System Defaults System Defaults The following are factory defaults for the parameters for the Smart ontroller. If the user does not select a setting for any of the following parameters, the default will be used. It is important the user set ALL parameters based on their needs. PARAMETERS ODE AIR ELETRI Refrigerant REFTYP R-0A R-0A Box Temperature BOXTMP F -0 F Superheat SUPRHT F F Smart Defrost SMTDEF N/A Off** Demand Defrost DMDDEF N/A Off Defrost Start Times DEF ST am/ pm am, 0am, pm, 0pm Defrost Fail-Safe Times DEFSAF 0 min. 0 min. (0 min. when Smart Defrost is On) Defrost End Temperature DEFTMP F 0 F ( F when Smart Defrost is On) Alarm High Temperature ALR HI 0 F F Alarm Low Temperature ALR LO 0 F - F Alarm Time ALRM 0 min. 0 min. Temperature Units F- F F lock Setting /H H H Fan hilling FNSTIR Off Off Test Mode TEST Off Off Service Mode VI Off Off **When Smart Defrost is turned on, defrost periods per day will automatically be programmed. These will be at :00 am, :00 am, :00 am, :00 am, :00 pm, :00 pm, :00 pm, and :00 pm. Also, the defrost fail safe time will be set to 0 minutes, and the defrost termination temperature will be set to F. The user can change these as needed for the application.

15 Wiring Diagrams VOLT ONNETION W/ SGLE SYSTEM ONNETION DIAGRAMFOR FOR SMART ONTROLLERIIII (WITHONE EVAPORATOR) ONDENSG UNIT UNIT VIE VIE OM OM GA GA EVAPORATOR GA GA SMART SMART ONTROLLER II II # # # # TO TO A VA SEE SEE NOTES && OM OM 0 0 ONDENSG ONDENSG UNIT UNIT UNIT VIE VIE VIE NOTES:. AN BE SUPPLIED DEPENDENTLY BY USG A 0/ VA POWER SUPPLY (00mA).. AN BE ONNETED TO () BEAON BOARD AT THE EVAPORATOR (TERMALS & ). NOTES:. ONNETION GOES TO A DRY ONTAT THAT LOSES UPON LOSS OF POWER OR.. AN ANBEBE SUPPLIED DEPENDENTLYBYBYUSG USGA A0/ 0/A VA POWER SUPPLY (00mA). EN AN IS ATIVATED ( VA, AMP ONTAT)... AN ANBEBE ONNETED TO TO () () BEAON BOARDAT AT THE THE EVAPORATOR (TERMALS && ). )... ONNETIONGOES TO TOA ADRY ONTAT THAT THAT LOSESUPON UPONLOSS LOSSOF OF POWEROROR EN ENAN AN IS IS ATIVATED ( (A, AMP ONTAT). HEATRAFT PART NO. 0 REV REV VOLT VOLT ONNETION W/ W/ W/ SGLE SYSTEM ONNETION ONNETION DIAGRAM DIAGRAM DIAGRAM FOR FOR SMART FOR SMART SMART ONTROLLER ONTROLLER II II II (WITH (WITH TWO (WITH TWO EVAPORATORS) TWO EVAPORATORS) MASTER MASTER MASTER EVAPORATOR EVAPORATOR HEATRAFT PART NO. 0 SLAVE SLAVE SLAVE EVAPORATOR EVAPORATOR OM OM OM GA TO TOVA VA TO VA SEE NOTES SEE NOTES & & SEE NOTES & OM # # # # # # SMART SMART ONTROLLER ONTROLLER II II SMART ONTROLLER II OM OM NOTES: NOTES: NOTES:. AN. AN BE SUPPLIED BE SUPPLIED DEPENDENTLY BY USG BY USG A 0/ A 0/ VA POWER VA POWER SUPPLY SUPPLY (00mA). (00mA).. AN. AN BE. AN BE SUPPLIED ONNETED BE DEPENDENTLY TO () TO BEAON () BEAON BY BOARD USG BOARD AAT 0/ THE AT EVAPORATOR THE VA POWER SUPPLY (TERMALS (TERMALS (00mA). & ). & ).. AN. BE. ONNETED ONNETION TO GOES () BEAON GOES TO ATO DRY BOARD A ONTAT DRYAT ONTAT THETHAT EVAPORATOR THAT LOSES LOSES UPON (TERMALS UPON LOSS LOSS OF POWER OF& POWER ). OR OR. EN ONNETION EN AN AN ISGOES ATIVATED ATIVATED TO A DRY ( VA, ONTAT ( VA, AMP THAT AMP ONTAT). LOSES ONTAT). UPON LOSS OF POWER OR EN AN IS ATIVATED ( VA, AMP ONTAT). HEATRAFT HEATRAFT PART PART NO. 0 NO. 0 HEATRAFT REV REV PART NO. 0 REV

16 SYSTEM VIE ONDENSG UNIT VIE OM SYSTEM ONDENSGUNIT OM MASTER MASTER Wiring Diagrams VOLT ONNETION W/ SYSTEMS VOLT ONNETION W/ SYSTEMS ONNETION DIAGRAM FOR SMART ONTROLLER II (TWO ONNETION SEPARATE SYSTEMS DIAGRAM / () FOR EVAPORATOR SMARTOM ONTROLLER EAH SYSTEM) II (TWO SEPARATE SYSTEMS / () EVAPORATOR ON EAH SYSTEM) SLAVE GA EVAPORATOR SLAVE SYSTEM VIE ONDENSGUNIT VIE OM VIE ONDENSGUNIT SYSTEM OM ONDENSG UNIT MASTER MASTER # # SMART ONTROLLER II OM SLAVE 0 MASTER EVAPORATOR SLAVE TO VA SEE NOTES & NOTES:. AN BE SUPPLIED DEPENDENTLY. AN BE ONNETED TO () BEAON. ONNETION GOES TO A DR EN AN IS ATIVATED ( V TO VA SEE NOTES & OM 0 NOTES:. AN BE SUPPLIED DEPENDENTLY BY USG A 0/ VA POWER SUPPLY (00mA).. AN BE ONNETED TO () BEAON BOARD AT THE EVAPORATOR (TERMALS & ).. ONNETION GOES TO A DRY ONTAT THAT LOSES UPON LOSS OF POWER OR EN AN IS ATIVATED ( VA, AMP ONTAT). SYSTEM SYSTEM ONDENSG UNIT ONDENSG UNIT VIE VIE OM OM # # SMART ONTROLLER II VOLT ONNETION W/ SYSTEMS SMART ONTROLLER II EVAPORATOR EVAPORATOR HEATRAFT PART NO. 0 REV NOTES:. AN BE SUPPLIED DEPENDENTLY BY USG A 0/ VA POWER SUPPLY (00mA). FOR. AN SMART BEONTROLLER ONNETED IITO () BEAON BOARD AT THE EVAPORATOR (TERMALS & ). ONNETION DIAGRAM FOR SMART ONTROLLER II (TWO SEPARATE SYSTEMS / (). EVAPORATOR ONNETION EAH SYSTEM) GOES TO A DRY ONTAT THAT LOSES UPON LOSS OF POWER OR (TWO SEPARATE SYSTEMS / () EN EVAPORATOR AN IS ONATIVATED EAH SYSTEM) ( VA, AMP ONTAT). # # OM 0 TO VA SEE NOTES & VOLT ONNETION W/ SYSTEMS SYSTEM SYSTEM ONDENSG UNIT ONDENSG UNIT VIE VIE OM OM HEATRAFT PART NO. 0 REV EVAPORATOR EVAPORATOR TO VA SEE NOTES & OM 0 NOTES:. AN BE SUPPLIED DEPENDENTLY BY USG A 0/ VA POWER SUPPLY (00mA).. AN BE ONNETED TO () BEAON BOARD AT THE EVAPORATOR (TERMALS & ).. ONNETION GOES TO A DRY ONTAT THAT LOSES UPON LOSS OF POWER OR EN AN IS ATIVATED ( VA, AMP ONTAT). # # SMART ONTROLLER II TO VA SEE NOTES & HEATRAFT PART NO. 0 REV NOTES: 0

17 Wiring Diagrams VOLT ONNETION W/ SYSTEMS ONNETION DIAGRAM FOR SMART ONTROLLER II (FOUR SEPARATE SYSTEMS / () EVAPORATOR ON EAH SYSTEM) SYSTEM SYSTEM ONDENSG UNIT ONDENSG UNIT VIE VIE OM OM SYSTEM SYSTEM MASTER SLAVE ONDENSG UNIT MASTER SLAVE ONDENSG UNIT VIE VIE OM OM MASTER SLAVE MASTER SLAVE SYSTEM SYSTEM ONDENSG ONDENSG UNIT UNIT VIE OM VIE OM MASTER MASTER EVAPORATOR SYSTEM SYSTEM SLAVE SLAVE ONDENSG ONDENSG UNIT UNIT EVAPORATOR VIE VIE OM OM MASTER MASTER EVAPORATOR SLAVE SLAVE EVAPORATOR TO VA TO VA SEE NOTES & SEE NOTES & OM 0 # # # # SMART ONTROLLER II SMART ONTROLLER II 0 OM NOTES: NOTES:. AN BE SUPPLIED DEPENDENTLY BY USG A 0/ VA POWER SUPPLY (00mA).. AN BE SUPPLIED DEPENDENTLY BY USG A 0/ VA POWER SUPPLY (00mA).. AN BE ONNETED TO () BEAON BOARD AT THE EVAPORATOR (TERMALS & ).. AN BE ONNETED TO () BEAON BOARD AT THE EVAPORATOR (TERMALS & ).. ONNETION GOES TO A DRY ONTAT THAT LOSES UPON LOSS OF POWER OR. ONNETION GOES TO A DRY ONTAT THAT LOSES UPON LOSS OF POWER OR EN AN IS ATIVATED ( VA, AMP ONTAT). EN AN IS ATIVATED ( VA, AMP ONTAT). HEATRAFT PART NO. 0 HEATRAFT REV PART NO. 0 REV

18 Wiring Diagrams SYSTEM SYSTEM ONDENSGSYSTEM UNIT ONDENSG UNIT EVAPORATOR MASTER ONDENSG UNIT VIE VIE VIE OM OM GA SYSTEM ONDENSG UNIT SYSTEM SYSTEM MASTER SLAVE ONDENSG UNIT MASTER SYSTEM ONDENSG VIE UNIT ONDENSGUNIT VIE ONDENSG UNIT EVAPORATOR EVAPORATOR ONDENSGUNIT VIE VIE VIE VIE OM OM OM OM OM OM OM # # # # OM 0 SMART ONTROLLER SMART IIONTROLLER II # # VOLT ONNETION W/ W/ SYSTEMS SMART ONTROLLER II ONNETION ONNETION DIAGRAM DIAGRAM FOR FOR SMART SMART ONTROLLER ONTROLLER II II (FOUR SEPARATE SYSTEMS / () EVAPORATOR ON EAH SYSTEM) (FOUR SEPARATE SYSTEMS / () EVAPORATOR ON EAH SYSTEM) OM 0 OM GA 0 SLAVE SYSTEM SYSTEM ONDENSGUNIT SYSTEM VIE OM ONDENSG UNIT ONDENSGUNIT OM SYSTEM SYSTEM VIE OM VIE TO VA SEE NOTES & EVAPORATOR MASTER NOTES: NOTES:. AN BE SUPPLIED. AN BEDEPENDENTLY SUPPLIED DEPENDENTLY BY USG ABY 0/ USG VA A 0/ POWERVA SUPPLY POWER (00mA). SUPPLY (00mA).. AN BE ONNETED. AN BE ONNETED TO () BEAON TO () BOARD BEAON AT THE BOARD EVAPORATOR AT THE EVAPORATOR (TERMALS (TERMALS & ). & ).. ONNETION. ONNETION GOES TO A DRY GOES ONTAT TO A DRYTHAT ONTAT LOSES THAT UPON LOSES LOSSUPON OF POWER LOSS OF ORPOWER OR EN AN ENIS AN ATIVATED IS ATIVATED ( VA, AMP ( VA, ONTAT). AMP ONTAT). NOTES: TO VA TO VA. AN SEE BE NOTES SUPPLIED & DEPENDENTLY BY USG A 0/ VA POWER SUPPLY (00mA). SEE NOTES &. AN BE ONNETED TO () BEAON BOARD AT THE EVAPORATOR (TERMALS & ).. ONNETION GOES TO A DRY ONTAT THAT LOSES UPON LOSS OF POWER OR EN AN IS ATIVATED ( VA, AMP ONTAT). HEATRAFT PART NO. 0 REV SLAVE SLAVE HEATRAFT HEATRAFT PART NO. 0 PART NO. 0 REV B REV B

19 Notes

20 Heatcraft Refrigeration Products, LL West Park Place Blvd., Stone Mountain, GA 00 ustomer Service and Technical Support Normal Business Hours :00 AM :00 PM EDT (00) - After Hours (after :00 PM EDT, weekends and holidays) () - Since product improvement is a continuing effort, we reserve the right to make changes in specifications without notice. The name behind the brands you trust. LIMATE ONTROL ommercial Refrigeration Parts