Guardian SCC 40 Manual
  1. Manuals
  2. Brands
  3. Guardian Manuals
  4. Controller
  5. SCC 40
  6. Manual
Guardian SCC 40 Manual

Guardian SCC 40 Manual

Screw compressor controllers
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
GUARDIAN
Screw Compressor Controllers
• Compressor status monitor with pressure, temperature, slide and load
displays
• Control by suction pressure setpoint or remote 5
• Control by suction equivalent temperature setpoint or remote 5
temperature
• Alarm and trip monitoring
• Compressor, pump, slide and speed control
• Economiser, heater and liquid injection control
• Optional Automatic volumetric slide control
• Multiple compressor system control
• Local panel operation and set-up
• Communications for remote monitoring and set-up
• Auto VI Control
Operation and Set-up Manual
GUARDIAN SCC-40/35/30/25 Screw Compressor Controllers provide suction pressure
setpoint control and alarm monitoring for one screw compressor. Alternatively the unit may
be set-up to control on water chiller, glycol chiller or equivalent temperature.
GUARDIAN SCC-40
SCC
40/35/30/25
GUARDIAN
Tel. +44 (0) 1270 760599
Fax. +44 (0) 1270 766804
Email:
sales@Guardian-controls.com
www.Guardian-controls.com
th
pressure
th
Issue (Auto VI) & V3.6t 07/12/00
Page 1

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the SCC 40 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Guardian SCC 40

Summary of Contents for Guardian SCC 40

  • Page 1 • Auto VI Control Operation and Set-up Manual GUARDIAN SCC-40/35/30/25 Screw Compressor Controllers provide suction pressure setpoint control and alarm monitoring for one screw compressor. Alternatively the unit may be set-up to control on water chiller, glycol chiller or equivalent temperature.

  • Page 2: Table Of Contents

    Page 2 Contents GUARDIAN ....................1 SCC ......................1 40/35/30/25....................1 GETTING STARTED................. 4 BUTTON OPERATION SHORTHAND................5 HARDWARE CONFIGURATION CHECKS ............... 5 CONFIGURE UNIT MODEL, SYSTEM No & ADDRESS........... 6 Enter Passcode ......................6 Select Unit Model......................6 Select System No and Address ..................7 RS485 Communications ....................
  • Page 3 SCC-40 Enclosure wiring: for trips negative ..............77 SCC-40 Enclosure wiring: for trips positive..............78 Local Communications ....................79 Standard Wallbox Internal wiring .................. 80 Standard SCC 40 Drawing.................... 81 FITTING NEW EPROM ................82 Index..........................83 GUARDIAN SCC-40...

  • Page 4: Guardian

    All users require to know a few basic facts about this controller before successfully starting to perform their design, commissioning, maintenance or operating functions. All GUARDIAN controllers need to be set up with a unit model selection and other basic settings for setpoints, timers and addresses.

  • Page 5: Button Operation Shorthand

    Means the display alternately flashes between identifier and trip message HARDWARE CONFIGURATION CHECKS Prior to switching on the GUARDIAN controller check that the hardware unit is the correct type for the incoming mains voltage. When satisfied that the correct type of controller is available then the following checks should...

  • Page 6: Configure Unit Model, System No & Address

    Display shows unit model currently selected which may be wrong. Press ‘raise’ repeatedly until correct model is displayed (e.g.SC30) and then press ‘accept’ which causes the display to wink briefly and display the new unit model selection (e.g SC40 ) GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 7: Select System No And Address

    RS485 Communications When the correct system number, case/compressor number and highway address have been entered as above then the controller can communicate with the GUARDIAN Consultant Terminal PC for central alarm monitoring and temperature display. Control setpoints, defrost times and alarm limits may then be sent to the controller from the PC.

  • Page 8: Unit Models

    Page 8 UNIT MODELS Guardian controllers may be configured in a number of different ways dependent on unit model selection. Each unit model fulfils a different refrigeration temperature monitoring and control requirement. In order to perform the required refrigeration control then each model has different uses for the controller’s input output signals.

  • Page 9: Displays

    Pushbuttons on the local control panel permit operator display of setpoints, pressures, temperatures, alarm and trip settings and compressor runhours and status. Setpoints, alarm and trip settings may be changed from the panel after entry of the appropriate passcode. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...
  • Page 10 In LOCAL automatic mode, the compressor is started and stopped under control of the suction pressure setpoint. REMOTE automatic mode allows up to six RCC-40 units to be connected via a two-wire communication link (RS485) to provide 6-unit system control. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 11: General Specification

    Control unit: 300 x 230 x 90mm The GUARDIAN SCC40/35/30/25 control unit comprises a printed circuit board in an IP65 ABS enclosure for mounting at the rear of the compressor pack control panel with the display unit mounted on the door and has overall dimensions:- 300 x 230 x 90mm.

  • Page 12: Consultant Format

    Page 12 Consultant Format SCC40 Std. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 13: Available Unit Models

    Page 13 AVAILABLE UNIT MODELS The Guardian SCC-40 controllers are available in four models, which vary in facilities and cost: SCC-40 4 pressures 4 temperatures Additional 5 Pressure or 5 Temperature 9 output relays 4 12V dc inputs 5 Mains inputs...

  • Page 14: Scc-40 Input/Output Signals

    VI control B orMotor speed HIGH or bypass valve or Fans-2 Analog outputs AOP1 Capacity control by variable speed motor 0 to 5V dc AOP2 Motor control speed Extension outputs Not used Watchdog Not used GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 15: Scc-40 Termination Wiring

    N.B. The Compressor Run Signal (TB3 Terminal 11) must be supplied to the Controller from the Delta Contactor of a Star-Delta System, or the Top of Ramp of a Soft Start System. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 16: Scc-35 Input/Output Signals

    Motor speed HIGH or bypass valve or Fans-2 Analog outputs AOP1 Capacity control by variable speed motor 0 to 5V dc AOP2 Motor control speed Extension outputs Not used Watchdog Not used GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 17: Scc-35 Termination Wiring

    N.B. The Compressor Run Signal (TB3 Terminal 11) must be supplied to the Controller from the Delta Contactor of a Star-Delta System, or the Top of Ramp of a Soft Start System. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 18: Scc-30 Input/Output Signals

    Compressor motor Slide valve load Slide valve unload Economiser Liquid injection Oil heater Not used Not used Analog outputs AOP1 Not used AOP2 Not used Extension outputs Not used Watchdog Not used GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 19: Scc-30 Termination Wiring

    Page 19 SCC-30 Termination Wiring - SCC30 Screw compressor controller GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 20: Scc-25 Input/Output Signals

    Compressor motor Slide valve load Slide valve unload Economiser Liquid injection Oil heater Not used Not used Analog outputs AOP1 Not used AOP2 Not used Extension outputs Not used Watchdog Not used GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 21: Scc-25 Termination Wiring

    Page 21 SCC-25 Termination Wiring SCC25 Screw compressor controller GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 22: Operation

    Page 22 OPERATION SCC40 PANEL LAYOUT GUARDIAN SCC40 control panel comprises a membrane pushbutton and display panel mounted on the front of the control unit. The membrane front panel (shown below) has a black background with white lettering and green buttons with dimensions 300 x 200mm and houses:- Number, Capacity &...

  • Page 23: Led Lamps

    PRESSURE, TEMPERATURE, EQUIVALENT TEMPERATURE DIFFERENTIALS, HOURS RUN, TIMERS & SAFETY TRIPS ‘view’ 7 led lamps. Selection for 4-digit LED displays LATEST VALUE, SETPOINT, LOW ALARM, HIGH ALARM, LOW TRIP, HIGH TRIP & SYSTEM GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 24: System Status Displays

    ==SE tUp= DISCHARGE FILTER ==== =YES “@ ” Press to enter system set-up mode accept Terminate passcode operation. SUCTION pASS code DISCHARGE FILTER ==== End= “@ ” Press to remove passcode accept GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...
  • Page 25 DISCHARGE FILTER PCEL HrLt Is displayed if relay is OFF Pump motor ON Compressor motor ON Economiser ON Liquid injection Oil heater ON Slide valve LOAD Slide valve UNLOAD Tripped relay ON GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...
  • Page 26 Discharge temperature high L.P. cutout H.P. cutout Oil level Oil flow switch Motor circuit breaker Emergency stop Safety (motor thermistor) Analog output voltages.. SUCTION =AO1 =AO2 FILTER DISCHARGE 10.00 00.00 Output in volts GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 27: Safety Trip Indications

    Compressor motor running Trip SUCTION signal off. s-UP slide not at minimum Trip DISCHARGE punP pump running signal off Trip Accept and reset procedures are the same as for other trips. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 28: Display Pushbutton Operation

    -1.0b to 24.0b where b= bar gauge All temperatures are displayed in the range -50C to 125C where C= degrees centigrade LOAD% and CAPACITY% are 0% to 125% where % is of maximum scale. displayed in the range GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...
  • Page 29 If no buttons have been pressed for 5 minutes, the SUCTION, DISCHARGE, OIL and FILTER windows revert to the default display of latest pressure values with; 'view' = LATEST VALUE, 'type' = PRESSURE GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 30: Control Pushbutton Operation

    TRIPPED lamp is switched off, any flashing 'type' alarm selection LED lamp goes steady, all display measurement values are unfrozen from the pre-trip conditions and revert to latest values and either ‘WAITING’ or ‘READY’ compressor control status LED lamps are lit. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 31: Call Frig Engineer

    The 'raise' pushbutton is also used after 'next' has been pressed to increase the displayed values of setpoints, high, low, alarm and trip settings prior to changing them using 'accept'. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 32: Settings Change Pushbutton Operation

    If an attempt is made to change a setting using the incorrect passcode then the display defaults to:- 'view' = LATEST VALUE 'type' = PRESSURE “RESET” Exits setup mode without clearing passcode pressing ‘next’ again will flash value to be changed. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 33: Alarm Accept And Reset Pushbutton Operation

    (sump) TEMP heater slide % CAPACITY PRESS stop-load motor load % LOAD% PRESS start-unload Calc equiv-suct-temp SUCTION superheat equiv-disc-temp DISCHARGE superheat suct-superheat SUCTION DIFF diff-disc-pressure DISCHARGE DIFF diff-oil-pressure DIFF diff-filter-pressure FILTER DIFF GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 34: Setpoints

    DISCHARGE DIFFERENTIAL SETPOINT STOP PUMP When 'P-St' is selected, this is the differential discharge to suction pressure above which the pump is stopped if it is only required during compressor startup. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...
  • Page 35 The discharge temperature above which the pump is not allowed to start. CAPACITY PRESSURE LOW ALARM =MIN LOAD % The minimum slide % at which a Load sharing compressor is allowed before it automatically stops after the stage-down time. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 36: Control Modes

    LEAD Always start this compressor first and stop it last c) LAG start this after LEAD compressor at maximum, OFF or tripped. d) StBy Only start this compressor if another compressor is tripped. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 37: Control

    Master. Once the control temperature/suction pressure goes above the control setpoint then the Master compressor will start. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 38: Starting

    6. If the pump run signal is not present within ‘dt’ the compressor goes to the tripped state 'PunP'/'trip' If the motor running signal,(motor in delta), is not received within thirty seconds the compressor will go to the tripped state 'nnot'/'trip'. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 39: Running

    When the Master brings the suction pressure into or below the control band; then, provided it slide is less than Capacity Low Limit, it will optimise capacity to improve efficiency. The Master will select a compressor GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 40: Stopping

    The compressor may be stopped at any time by pressing the stop button. This will cause the compressor to unload to minimum and then stop. The controller will then display the MANUAL OFF mode. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 41: Modes Changes

    REMOTE mode then it will go into suction pressure regulation mode, begin requesting status information and become the master. If another compressor is already master, it will ramp its slide up to 100%. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 42: Two Speed Motor Control

    After the capacity load-delay (approx 3minutes), the capacity solenoid is loaded until at-minimum limit switch is removed. IF SYST 'noSP' is selected then the motor runs at maximum speed and no speed control takes place (standard slide control). GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...
  • Page 43 ='Compressor'. In manual mode the slide capacity may be increased/decreased using the raise and lower pushbuttons with mode selection = 'Capacity'. Local or remote operation may then be selected if required GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 44: Two Compressor-Single Motor Operation

    (the motor contactor is probably already de-energised). Both high stage and low stage compressors run their oil pumps until the appropriate slides are At_minimum and both controllers display 'Waiting' followed by 'Ready'. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...
  • Page 45 :- CONTROL OPERATION High stage controllers are started and stopped as required by their associated low stage. Guardian SCC-40 Remote mode communications currently supports a maximum of 4 controllers. ECONOMISER VALVES On HS-U and LS-U controllers the economiser valve is open whilst the motor relay output is present.
  • Page 46 The Low-stage LS-U controller provides an analogue output signal (0 to 10vdc) which is proportional to the Low-stage slide position ( 0 to 100%). This signal is used to control the evaporator valve position. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 47: Automatic Standby Compressor Changeover After Trip

    Use SetuP SySt noVI to de-energise the relay for compressor 1 or SetuP SySt Vi-1 to energise the relay for compressor 2 The automatic standby changeover feature is restored SetuP SySt Stby. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 48: Notes On Set-Up Of Auto Vi For Howden Compressor

    Auto VI Operation: Howden supply Auto VI Compressors with a stepper motor built into the Volumetric slide. Guardian SCC40 Panels contain the drive PCB for the stepper motor as shown in attached drawing SCC40 Auto VI Wall box panel Wiring CDC0016 With the Howden VI slide mechanical arrangement there are two modes of operation: 1.

  • Page 49: Procedure

    To resume Automatic VI, the Fixed VI parameter Fi Must be set to zero Fi=00. On SCC40 Restart Power-up, Compressor Stop or Compressor Trip then the VI slide is pulsed back to zero which takes about 2 minutes. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 50: Auto Vi Commissioning Parameters

    C255 This is normally defaulted for the Compressor type selected. However, this may vary depending on Howden configuration, so check with manufacturers data sheets. (See attached data sheet for Guardian defaults) Maximum Slide Stop U000 U255 This is normally defaulted for the Compressor type selected.

  • Page 51: Auto Vi Drawing

    Page 51 Auto VI Drawing GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 52: Auto Vi Wallbox Wiring

    Page 52 Auto VI Wallbox Wiring GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 53: Timer Setpoints

    ( <0.3 bar) the control setpoint. This delay is also used after starting motor before loading pulses are started. After-Stop LOAD % 1.0 to 5.0min the minimum time required after stop before allowing another restart. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...
  • Page 54 LOAD% WINDOW; This window displays three timers. 10.0 - 0.0min Time between starts - 1.0min Time after stop iii) Motor pre-load delay after When waiting the larger of i) and ii) is displayed. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 55: Setup

    = 1 - 255 if model type SCC-40 or SCC-35 rhnn Real time clock Real time hours nn = 0 to 23 Cnnn Real time mins nn = 0 to 59 GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 56: System Settings

    Pump Selection PunP, Pump Run Compressor YYYY=PunP P-ST, Pump Start Compressor P-St no-P, No Pump Compressor no-P FiLt, Special, Contact Guardian. FiLt dtnn Oil Differential alarm trip nn = 0 to 9.9 minutes delay. btnn Bypass delay if ‘bY_P’ nn = 0 to 99 seconds bFnn If 2Fan,.

  • Page 57: Port Settings

    = 0 to 100 C=00 0-10Vdc C=05 is normal setting tnnn Current transformer nnn = 10 to 990 Amps rating rnnn Maximum rated nnn = 10 to 990 Amps motor load GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 58: Test

    LED 8 tOFF t=on Tripped relay Ao=0 Analog output calibartion Ao10 Ao05 Done SUCTION ==SE tUp= DISCHARGE FILTER ==== done Exit settings change and return to default compressor display “@ ”. press accept GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 59: Two Speed Motor Control Selection

    ” raise lower DISCHARGE FILTER ==== 2-sp “@ ” “@ ” accept RESET Two speed motor operation has been selected. Two speed operation may be removed by selecting ‘none’ instead of ‘2-SP’ GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 60: Transducer Setup & Calibration

    To change any ‘Anal’ (Analog) setting use the following procedure; “@ ” “@ ” until correct value is displayed raise lower “@ ”. “@ ” accept next SUCTION ==sE tUP= DISCHARGE FILTER ==== donE “@ ” “@ ” accept RESET GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...
  • Page 61 4-20mA transducers are calibrated at the factory and should not need to be calibrated at site. Before attempting Pressure Calibration, please contact Guardian Electronics Ltd., Pressure transducers are set for a range of –1 to 24 Barg. (0-25 Bara) 4mA = -1 Barg, 17.44mA = 20 Barg,...
  • Page 62 'raise' or 'lower' until the required motor rating is displayed then press 'accept'. SUCTION ==SE tUP= DISCHARGE FILTER ==== r250 The load % zero and 100% settings can be marginally adjusted using 'view' SYTEM 'type' PRESSURE capacity above. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 63: Communications

    Communication commands and replies are checked for parity and block length and automatically re-transmit if errors are detected. Each GUARDIAN controller has a unique unit number address UU/u which is used to select the appropriate unit for interrogation or modification.

  • Page 64: Main Set-Up/ Commissioning Parameters

    StbY Control type Std/HS-U/LS-U/Uibr/tcon/CHIL/rt5c/rP5c Std. rP5c System pack number Sn01 Sn80 Compressor number Cn01 Cn06 A 01 A255 Monitor Address rtc. Real Time Clock rh00 rh24 Real Time Clock mins rt00 rt59 GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...
  • Page 65 P-ST, Pump Start Compressor (Oil Differential, Oil P3 to Suction P1) no-P, No Pump Compressor (Oil Differential, Oil P3 to Suction P1) FiLt, Special, Contact Guardian. Oil differential trip delay secs dt00 dt99 ( IF bY- P ) Bypass delay time, On 4secs before comp starts &...
  • Page 66 C100 is 4-20mA slide input selection (Also for 4-20mA Fit Link LKV2 adjacent TB7) Load transformer current rating ratio ( txxx:5 ) t000 t990 Motor maximum current rating ( rxxx ) t000 t990 GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 67: Setup / Commissioning Parameters

    No Action When Set to Zero 0% Restart after Starts/Hour timer SH LOAD PRESSURE LOW TRIP low-trip motor current SUCTION PRESSURE HIGH TRIP high-trip suction pressure 0.0b 20.0b DISCHARGE PRESSURE HIGH TRIP high-trip discharge pressure 0.0b 23.0b GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 68: Temperatures

    FILTER EQUIV HIGH TRIP IF ‘rP5c’ Remote Pressure High Trip -1.0 24.0 rP5c set board links to LK01 OPEN, LK02 CLOSED rP5c Note Alarms and Trips have a delay of 60 seconds GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 69: Differentials

    2 ‘dt’ time commences only when OIL DIFF LOW TRIP is satisfied 3 IF Slide not returned to MIN Within dt time then Oil Drain Delay Commences for ‘SH’ Starts per Hour Timeout. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 70: Timers

    4-20mA transducers are calibrated at the factory and should not need to be calibrated at site. Before attempting Pressure Calibration, please contact Guardian Electronics Ltd., Pressure transducers are set for a range of –1 to 24 Barg. (0-25 Bara) 4mA = -1 Barg, 17.44mA = 20 Barg,...

  • Page 71: Settings Display And Change Facilities

    EQUIV TEMP DIFFERENTIAL HOURS RUN TIMERS (mins) SAFETY TRIPS ‘view’ HIGH ALARM ‘type’ SUCTION DISCHARGE FILTER CAPACITY% LOAD% PRESSURE stop-load start-unload TEMPERATURE mot.inh EQUIV TEMP DIFFERENTIAL HOURS RUN TIMERS (mins) SAFETY TRIPS GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...
  • Page 72 - A1 cal - A2 cal - A3 cal - A4 cal - A9 cal - A10 TEMPERATURE EQUIV TEMP DIFFERENTIAL HOURS RUN TIMERS (mins) SAFETY TRIPS SYSTEM STATUS & SETUP MODE GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 73: Scc-40 Enclosure Wiring: For Trips Negative

    Page 73 SCC-40 Enclosure wiring: for trips negative GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 74: Scc-40 Enclosure Wiring: For Trips Positive

    Page 74 SCC-40 Enclosure wiring: for trips positive. GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 75: Local Communications

    Page 75 Local Communications Internal Communications between Compressors GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 76: Standard Wallbox Internal Wiring

    Page 76 Standard Wallbox Internal wiring GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 77: Standard Scc 40 Drawing

    Page 77 Standard SCC 40 Drawing GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 78: Fitting New Eprom

    Page 78 FITTING NEW EPROM NOTE POSITION BEFORE REMOVAL. ACTUAL LOCATION MAY BE REVERSED CORRECT POSITIONING OF EPROM ALIGN INDICATED INDENTS GUARDIAN SCC-40 Issue (Auto VI) & V3.6t 07/12/00...

  • Page 79: Index

    Functions, 8 SETTINGS CHANGE PUSHBUTTON GENERAL, 36 OPERATION, 32 GENERAL SPECIFICATION, 11 SETUP, 55 GETTING STARTED, 4 Standard SCC 40 Drawing, 77 HARDWARE CHECKS, 5 Standard Wallbox Internal wiring, 76 Inputs, 26 start, 31 LED LAMPS., 23 stop, 31 LOCAL AUTOMATIC, 36...

This manual is also suitable for:

Scc 35Scc 30Scc 25

Table of Contents