TC4-4SD - Farmer Boy Ag Systems
Contents
1. 16 VENTILATION 20 Cooling Operation 20 Minimum Ventilation Cycle 22 Differential Settings 23 HEATER SETTINGS 24 TROUBLESHOOTING 2 2 27 TECHNICAL SPECIFICATIONS 30 2 1 PRECAUTIONS N We strongly recommend installing supplementary natural ventilation as well as a back up thermostat on at least one cooling stage refer to the wiring diagram enclosed with this user s manual to connect the thermostat Although fuses at the input and outputs of the controller protect its circuits in case of an overload or overvoltage we recommend installing an additional protection device on the controller s supply circuit The room temperature where the controller is located MUST ALWAYS REMAIN BETWEEN 32 F AND 104 0 C TO 40 C To avoid exposing the controller to harmful gases or exces sive humidity it is preferable to install it in a corridor DO NOT SPRAY WATER ON THE CONTROLLER FOR CUSTOMER USE Enter the serial number located on the side of the controller below for future reference Model number TC4 4SD Serial number TC4 48D rev 01 FEATURES The TC4 4SD is an electronic device used for environmental control in live stock buildings It allows the user to maintain2. P Keep pressing the push button to view the status of the other probes 12 TC4 4SD rev 01 CHANGING THE PARAMETER SETTINGS THE MEANING OF A FLASHING DISPLAY S The display will flash cer tain cases and not in others The flashing indicates that the value shown can be 80 J justed A value that is not 2 flashing cannot be adjusted LOCKING THE PARAMETER SETTINGS The parameter settings can be locked to prevent accidentally modifying them When the settings are locked only the temperature set point and the On Off switch for the temperature curve can be modified To lock the parameter settings Set internal switch 1 to ON The Locked Parameter Pilot Light turns on To unlock the parameter settings Set internal switch 1 to OFF The Locked Parameter Pilot Light turns off MANUAL OFF You can override the parameter settings at any time and turn off the four stages by turning the selection knob to MANUAL OFF Turning the selection knob to any position other than MANUAL OFF will resume normal operation ofthe stages TC4 4SD rev 01 13 ADJUSTING THE TEMPERATURE TEMPERATURE UNITS Temperatures can be displayed in either Celsius or Fahrenheit units ON Set internal switch 2 to the desired position ON to display temperatures in Celsius units OFF to display temperatures in Fahrenheit units VIEWING TE
3. i These initial parameter settings will not be retained in the controller s memory Each new setting will replace the preceding one ii If the power supply is cut off the last parameter settings will be retained in memory until the power is restored a The range of values for curve temperatures is 35 F to 99 9 F 1 7 C to 37 7 b Ifthe negative values option is activated the range of values for the heater offset is 9 9 F to 20 0 F 5 5 C to 11 1 C TC4 48D rev 01 9 INSTALLATION MOUNTING INSTRUCTIONS Remove the four screws on the front cover and lift the cover Mount the enclosure on the wall using three screws Be sure the electrical knockouts are at the bottom of the enclosure in order to prevent water from entering the controller Insert the screws in the mounting holes provided in three corners of the enclosure and tighten Fasten the three black caps provided with the controller onto the three mounting holes CONNECTIONS To connect the controller refer to the wiring diagram enclosed with this user s manual _ Voltage switch Set the voltage switch to the A appropriate voltage Use the electrical knockouts provided atthe bottom ofthe enclosure Do not make additional holes in the enclosure particularly on the side of the enclosure when using a computer communications module If metallic cable holders are used SE to secure cables entering the enclosur
4. Environment Control TC4 4SD USER S MANUAL _ TC4 4SD 4 STAGE CONTROL CURVE N AMENT TEMPERATURE SET SET PONTIT CURVE L JL DIFFERENTIAL 1 Se ON TIME X DIFFERENTIAL 2 4 OFF TIME DIFFERENTIAL 3 Z DIFFERENTIAL 4 MANUAL OFF HEATER OFFSET TABLE OF CONTENTS Page 3 PEA TURES T 4 LOCATION OF THE 600015 6 FACTORY SETTINGS 9 INSTALLATION 10 Mounting Instructions 10 u uu uq a sa 10 Heating Cooling Option 11 Temperature Probes 11 CHANGING THE PARAMETER SETTINGS 13 The Meaning of a Flashing Display 13 Locking the Parameter settings 13 13 ADJUSTING THE 14 Temperature Units 14 Viewing Temperatures 14 Temperature Set Point 16 Temperature Curve
5. MPERATURES The readoutcan display values from 40 0 F to 120 0 F 40 0 C to48 9 C When the temperature drops below 9 9 degrees the negative sign is displayed separately alternating with the numerical value Viewing the Room Temperature The ambienttemperature is the average value of all temperatures measured by activated probes in proper operating condition Set the selection knob to AMBIENT TEMPERATURE The ambient temperature is displayed 2 Viewing Probe Temperatures The controller can display probe temperatures individually Probes can also be turned on or off to control the temperature in different parts of the building using the inernal switches Set the selection knob to AMBIENT TEMPERATURE The ambient temperature is displayed Press the push button Pr 1 is displayed alternating with the tem perature measured by the probe connected to terminal 1 supplied with the controller 14 1C4 4SD rev 01 TC4 4SD Press the push button once again to display the state of the probe i e ON OFF Press the push button once again to display the temperature and state of probe 2 etc 3 Viewing Minimum Maximum Temperatures The minimum and maximum temperatures are the lowest and highest tem perature values recorded since the last reset Temperatures values are averaged over all active probes Set the selection knob to AMBIENT TEMPERATURE The a
6. a specified target tempera ture by controlling the operation of ventilation and heating equipment Two stages of constant speed fans can be connected to the controller as well as two stages of either constant speed fans or heating units The main features of the TC4 4SD are as follows THREE DIGIT DISPLAY A three digit display provides a high level of accuracy allowing the user to specify a temperature to within one tenth of a degree in Fahrenheit or Celsius units PILOT LIGHTS INDICATING STATE OF OUTPUTS Pilot lights indicating the state of outputs allow the user to monitor the operation of the system without having to enter the building MINIMUM VENTILATION CYCLE When ventilation is not required for cooling the first stage fans can be operated either continously or intermittently to reduce the level of humid ity and supply oxygen to the room MINIMUM VENTILATION COMPENSATION CURVE An outside probe can be connected to the controller to adjust the mini mum ventilation cycle as a function of outside temperature TEMPERATURE CURVE The controller can be set to automatically change the temperature set point over a given period of time in accordance with the user s require ments by specifying a temperature curve with up to six different points 4 TC4 4SD rev 01 TC4 4SD FOUR INDEPENDENT TEMPERATURE PROBE INPUTS Up to four temperature probes can be connected to the controller in order to obtain a more accurate reading of
7. ate the curve as explained below TC4 4SD rev 01 17 TC4 4SD NOTE Make sure the temperature curve is deactivated before specify ing new points see below Activating the Temperature Curve If you have just finished specifying the points on the curve Press the push button once again The word OFF flashes on the display Turn the adjustment knob clockwise one notch and leave in this posi tion for at least 10 seconds The word ON flashes on the display and after 10 seconds the Temperature Curve Pilot Light turns on indicating that the temperature curve is now activated Set the selection knob to AMBIENT TEMPERATURE If you have previously defined the points on the curve Set the selection knob to SET POINT T CURVE The current value of the temperature set point flashes on the display Press the push button The word OFF flashes on the display Press the push button to display the points of the curve currently defined until the word OFF appears thirteen clicks Turn the adjustment knob clockwise one notch and leave in this po sition for at least 10 seconds The word ON flashes on the display and after 10 seconds the Temperature Curve Pilot Light turns on indicating that the temperature curve is now activated Set the selection knob to AMBIENT TEMPERATURE 3 Viewing Current Set Point and Day Number 18 TC4 4SD rev 01 TC4 4SD When the temperature curv
8. cable is not plugged into the power supply board properly The wiring is incor rect The fan motor or heating unit is defec tive The controller is defective 288 1 Replace the fuse Make sure the cable is firmly plugged in with the tabs in place Correct the wiring In particular make sure two different lines are connected to each motor line L1 modulated by the controller should be combined with another line N for 115 or L2 for 230V to activate the motor or heating unit Also make sure the stage s COMMON is supplied by line L1 Verify if the motor or heating unit is defective by connecting it to an alternate power supply Replace the motor or heating unit If it still is not operating Listen to see if there is a clicking sound when the stage s pilot light turns on If there is no clicking sound contact your distributor to repair the control ler TC4 4SD PROBLEM CAUSE SOLUTION Stages 3 and internal switches Verify the internal switch 4 are not are improperly set settings running as expected The stage 1 Time off is set to zero Set time off to a value other than fans do not zero stoprunning when the The wiring is incorrect Correct the wiring In particular controller is make sure two different lines are operating connected to each motor line L1 minimum modulated by the controller ventilation should be combined with another cycle line fo
9. e use the ground plate provided with the Ground plate controller Connect the ground wire to the ground stud on the plate Inside of the enclosure f Stages 3 amp 4 are used for heating it may be necessary to install a transformer in order to supply the appropriate voltage to the heating unit ALL WIRING MUST BE DONE BY AN AUTHORIZED ELECTRI CIAN AND MUST COMPLY WITH APPLICABLE CODES LAWS AND REGULATIONS BE SURE POWER IS OFF BEFORE DOING ANY WIRING TO AVOID ELECTRICAL SHOCKS AND EQUIPMENT DAMAGE 10 1C4 4SD rev 01 WARNING TC4 4SD HEATING COOLING OPTION Stages 3 and 4 can operate as heating or cooling stages Set switches 6 and 7 to OFF to use both stages for cooling ON Set switch 6 to and switch 7 to OFF to use Stage 4 for heating and Stage 3 for cooling Set switches 6 and 7 to ON to use both stages for heating Note that if only one stage is used for heating it must be Stage 4 TEMPERATURE PROBES 1 Connecting the Probes The controller is supplied with one temperature probe connected to terminal 1 Uptothree additional probes can be connected to obtain more accurate readings and a faster reaction time Use terminals 2 and 4 to connect additional probes as shown on the wiring diagram enclosed CAUTION Probes operate at low voltage and are insulated
10. e is activated the current temperature set point and day number can be viewed at any time The current day number can also be adjusted in order to move forward or backward on the temperature curve Set the selection knob to SET POINT CURVE The current temperature set point flashes on the display Press the push button The current day number is displayed Use the adjustment knob to set the day number to the desired value 4 Deactivating the Temperature Curve Set the selection knob to SET POINT T CURVE The current temperature set point flashes on the display Press the push button to display the points of the curve actually de fined until the word ON appears fourteen clicks Turn the adjustment knob counterclockwise one notch and leave this position for at least 10 seconds The word OFF flashes on the display and after 10 seconds the Temperature Curve Pilot Light turns off indicating that the temperature curve is now deactivated Set the selection knob to AMBIENT TEMPERATURE TC4 4SD rev 01 9 VENTILATION SETTINGS COOLING OPERATION TC4 4SD controls two stages of constant speed fans Stages 1 and two and two optional stages of constant speed fans Stages 3 and 4 For the description that follows refer to the diagram on the following page If the room temperature rises When Room T lt Set Point Differential 1 the Stage 1 fans run according to the mini
11. e set point for that day is maintained until the curve is reactivated NOTES i All six points of the curve must be specified If six points are not needed repeat the last temperature value for each unnecessary point ii Certain restrictions apply to reduce the risk of errors The highest possible day number is 99 Decreasing day numbers are not allowed Increasing temperatures are not allowed The temperature variation cannot exceed 3 F 1 6 C per day 16 TC4 4SD rev 01 TC4 4SD 1 Specifying the Temperature Curve Set the selection knob to SET POINT T CURVE The current temperature set point flashes on the display Press the push button The word OFF is displayed indicating that the Temperature 1 2 kas e T 47 I 5 i i i Te i d4 d25 d35 d50 d70 0 Doys termperature curve is deactivated If this is not the case see below to deactivate the curve Repeat the following steps for each of the six points Press the push button once again The letter d followed by a day number flashes on the display Using the adjustment knob set the day number to the desired value Press the push button once again The current temperature set point flashes on the display Using the adjustment knob adjust the set point to the desired value Once the six points of the curve have been specified activ
12. ected stage flashes on the display Use the adjustment knob to adjust the differential to the desired value The differential be adjusted between 0 5 F 20 0 F 0 3 C and 11 1 C 2 Adjusting the Heater Offset The heater offset can provide substantial energy savings if correctly adjusted according to the outside temperature Itis the number of degrees below the set point at which the heaters turn off see diagram above Set selection knob to HEATER OFFSET The current heater offset flashes on the display Use the adjustment knob to adjust the heater offset to the desired value The heater offset be adjusted between 09 and 20 0 F 0 C and 11 1 C TC4 4SD rev 01 25 TC4 4SD Enabling Disabling Negative Heater Offset Normally the heater offset is set to a positive value It may also be useful to set it to a negative value to allow the heating units to operate when the room temperature is above the set point In that case the negative heater offset must be activated Set the selection knob to HEATER OFFSET The current heater off set flashes on the display Press the push button word ON or OFF flashes on the display Turn the adjustment knob to set the negative offset option to the de sired state After 10 seconds the display returns to the heater offset value When the negative offset option is enabled the offset ranges from 9 9 F
13. from the supply Be sure that probe cables remain insulated from all high voltage sources In particular do not route the probe cables through the same electrical knockout as other cables Do not connect the shield from the probe cable to a terminal or a ground TC4 4SD rev 01 11 TC4 4SD 2 Extending the Probes Each probe can be extended up to 500 feet 150 m Use a shielded cable of outside diameter between 0 245 and 0 260 in 6 22 and 6 60 mm to ensure the cable entry is liquid tight cable dimensions should not be under 18 AWG Do not ground the shielding It is preferable to weld the cable joint to ensure a proper contact between the two cables CAUTION Do not run probe cables next to other power cables When crossing over other cables cross at 90 3 Detecting Faulty Probes If a faulty probe is detected the Defective Probe pilot light turns on The ambient temperature shown on the display is then the average tempera ture measured by the probes in working condition The controller will operate according to this temperature If all the probes are defective the display shows P To identify the faulty probe Set the selection knob to AMBIENT TEMPERATURE The ambient temperature is displayed Press the push button If the probe connected to terminal 1 is not faulty Pr 1 is displayed alternating with the temperature measured by the probe Otherwise Pr 1 alternates with
14. mbient temperature is displayed Turn the adjustment knob clockwise by one notch The minimum temperature flashes on the display Turn the adjustment knob counterclockwise one notch The maxi mum temperature flashes on the display NOTE If you let the display flash for more than 10 seconds the control ler resets the minimum and maximum temperatures currently in memory the display stops flashing to indicate that the reset has been done TEMPERATURE SET POINT The temperature set point is the target room temperature It can be ad justed between 40 0 F and 99 9 F 40 0 C and 37 7 C TC4 4SD rev 01 15 TC4 4SD Adjusting the Temperature Set Point Set the selection knob to SET POINT CURVE The current set point flashes on the display Use the adjustment knob to adjust the set point to the desired value NOTE The temperature set point can be adjusted only if the temperature curve is deactivated see following section TEMPERATURE CURVE The user can define a temperature curve to adjust the set point automati cally over a given time period A curve is defined using six points Each point specifies day number and a set point for that day Once the points of the curve are defined the curve must be activated The controller will change the temperature set point every hour in a linear fashion between consecutive points of the curve When the last point of the curve is reached the temperatur
15. mum ventilation cycle When Room T Set Point Differential 1 the Stage 1 fans run continuously When Room T Set Point Differential 1 Differential 2 the Stage 2 fans start to run When Room T Set Point Differential 1 Differential 2 Differential 3 the Stage 3 fans start to run When Room T Set Point Differential 1 Differential 2 Differential 3 Differential 4 the Stage 4 fans start to run If the room temperature falls When Room T Set Point Differential 1 Differential 2 Differential 3 the Stage 4 fans return to a stop When Room T Set Point Differential 1 Differential 2 the Stage 3 fans return to a stop When Room T Set Point Differential 1 the Stage 2 fans return to a stop 20 TC4 4SD rev 01 TC4 4SD FIGURE 1 COOLING Cooling Level STAGE 4 Y STAGE 3 Y STAGE 2 Y A STAGE 1 4 p4 gt MINIMUM DIFF 2 DIFF 3 DIFF 4 Room VENTILATION 0 0 CYCLE SETPOINT 9 2 Temperature gt gt gt 9 rm m m m When Room T SetPoint the Stage 1 fans stop running continuously and start to run according to the minimum ventilation cycle When the room temperature drops below this point the stage 1 fans operate according to the minimum ventilation cycle TC4 4SD rev 01 21 TC4 4SD MINIMUM VENTILATION CYCLE When the room temperature is below the set point the Stage 1 fans ope
16. r 115 or L2 for 230V to activate the motor or heating unit Also make sure the stage s COMMON is supplied by line L1 TC4 4SD rev 01 29 TECHNICAL SPECIFICATIONS Supply 115 230 VAC 18 8 50 60 Hz overload and overvoltage protection fuse F6 1A fast blow 12 VDC for AC back up supply can activate all outputs if supplied with DC back up voltage Stage 1 ON OFF output 115 230 VAC 50 60 Hz 30 VDC 6A FAN 10A RES fuse F1 10A slow blow Stage 2 ON OFF output 115 230 VAC 50 60 Hz 30 VDC 6A FAN 10A RES fuse F2 10A slow blow Stage 3 ON OFF output 115 230 VAC 50 60 Hz 30 VDC 6A FAN 10A RES fuse F3 10A slow blow Stage 4 ON OFF output 115 230 VAC 50 60 Hz 30 VDC 6A FAN 10A RES fuse F4 10A slow blow Probes Low voltage gt 5V isolated from the supply Operating range 40 0 to 120 0 F 40 0 10 48 9 C Accuracy 1 8 F 1 C between 41 and 95 F 5 and 35 C Enclosure ABS moisture and dust tight The room temperature where the controller is located MUST ALWAYS REMAIN BETWEEN 32 AND 104 F 0 AND 40 C 30 1
17. rate according to the minimum ventilation cycle Running the fans even though ventilation is not required for a cooling purpose is useful to reduce humidity levels and supply oxygen tothe room It also prevents the fans from freezing in winter Minimum Cycle TIMEON STAGE 1 OFF CYCLE TIME Minimum Ventilation Cycle Settings 1 Torun the fans continously at minimum speed set time on equal to cycle time 2 To stop the fans set time on to zero 3 To run the fans intermittently set time on to the desired running time and cycle time to on time plus off time 227 1 TC4 4SD 1 Viewing and Adjusting On Time Setthe selection knob to STAGE 1 TIMER ON TIME The user defined time on for the Stage 1 timer is displayed Use the adjustment knob to set the time on to the desired value Time on can be adjusted between 0 and 900 seconds in increments of 15 seconds N Viewing and Adjusting Off Time Set the selection knob to STAGE 1 TIMER OFF TIME The current off time for the Stage 1 timer is displayed Use the adjustment knob to set the off time to the desired value The off time can be adjusted between 0 and 900 seconds in increments of 15 seconds DIFFERENTIAL SETTINGS The differential for a given stage is the temperature difference between the moment the fans start to run for that stage and the moment they return to a stop see
18. s are on Stage 3 Pilot Light Turns on when Stage 3 fans or heating units are on Stage 4 Pilot Light Turns on when Stage 4 fans or heating units are on Temperature Curve Pilot Light Turns on when the temperature curve is activated Defective Probe Pilot Light Turns on when a defective probe is detected Locked Parameter Pilot Light Turns on when the parameters are locked Push Button for Other Functions Used to access other functions such as specifying the points of a temperature curve Adjustment Knob Used to adjust the value of a selected parameter TC4 4SD rev 01 7 TC4 4SD 12 Internal Switches The internal switches are located on the inside of the front cover and are defined in the following diagram UNLOCKED PARAMETERS LOCKED PARAMETERS FAHRENHEIT DEGREES CELSIUS DEGREES PROBE 2 DISABLED PROBE 2 ENABLED PROBE 3 DISABLED PROBE 3 ENABLED PROBE 4 DISABLED PROBE 4 ENABLED 6 OFF 7 ON OFF STAGE amp 4 COOLING 6 7 6 ON 7 ON STAGE 3 amp 4 HEATING 6 ON 7 OFF STAGE 3 COOLING STAGE 4 HEATING NOTE When the controller is shipped from the factory all the switches are set to OFF 8 TC4 4SD rev 01 FACTORY SETTINGS FACTORY RANGE OF 2 EN SETTINGS VALUES Temperature Set 40 to 99 9 F Temperature Curve days lt 100 0 to 900 seconds Differential 4 0 5 to 20 F swan Differentials 2 to 4 2 F 1 1 C Heater Offset 0 5 F 0 3 C 40 A NOTES
19. the average ambient temperature and a faster reaction time OVERLOAD AND OVERVOLTAGE PROTECTION Fuses are installed at the input and outputs of the controller to protect its circuitry in the case of an overload or overvoltage COMPUTER CONTROL The controller can be connected to a computer thus making it possible to centralize the management of information and diversify control strate gies CONTROL OF AIR INLET MOVEMENT If the TC4 4SD is used in combination with PF 5 controller the movement of the air inlets can be coordinated with the operation of the fans using a potentiometer located on the panel drive This allows the air inlets to be adjusted correctly without the influence of uncontrollable factors such as wind or air from adjoining rooms TC4 4SD rev 01 5 LOCATION OF THE CONTRO i N 4 4 STAGE CONTROL TEMPERATURE CURVE TTINGS AMBIENT TEMPERATURE 75 set curve DIFFERENTIAL 1 DIFFERENTIAL 2 1 SE DIFFERENTIAL 3 DIFFERENTIAL 4 HEATER OFFSET Front Cover Internal Circuit 6 TC4 4SD rev 01 TC4 4SD L P lj EC Parameter selection Knob Used to select a parameter Three Digit Display Displays temperatures and other parameters shown on the Adjustment Knob Stage 1 Pilot Light Turns on when Stage 1 fans are on Stage 2 Pilot Light Turns on when Stage 2 fan
20. the diagram at the beginning of this chapter Differentials can be adjusted between 0 5 F and 20 0 F 0 3 C and 11 1 C Set the selection knob to the desired differential The current differential flashes on the display Use the adjustment knob to adjust the differential to the desired value TC4 4SD rev 01 23 HEATER SETTINGS If Stages or 4 are notused for cooling they can control heating units Note that if only one stage is used for heating it must be Stage 4 Heating Level s p o gt lt l HEATER Room OFFSET Temperature 4 DIFF 3 DIFF 4 SET POINT H 15 6 If the room temperature falls When room setpoint heater offset differential 4 the stage 4 heaters turn on point A When room set point heater offset differential 4 differential 3 the stage 3 heaters turn on point B If the room temperature rises Whenroom set point heater offset differential 4 thestage3heaters turn off point C When room set point heater offset the stage 4 heaters turn off point D 24 TC4 4SD rev 01 TC4 4SD Adjusting the Heating Differentials The heating differential is the temperature difference between the moment the heating units turn on and the moment they turn off see the diagram above Set selection knob to DIFFERENTIAL 4 or DIFFERENTIAL 3 The current differential for the sel
21. to 20 0 F 5 5 C to 11 1 C 26 TC4 4SD rev 01 TROUBLESHOOTING GUIDE PROBLEM The display doesn t work CAUSE The circuit breaker on the service panel is off or tripped The wiring is incorrect The F6 input fuse is open The voltage selector switch is in the wrong position The display board interconnect cable is unplugged from the power supply board SOLUTION Reset the circuit breaker Fix the wiring Replace the fuse Set the switch to the correct position Plug the cable The display shows the letter The corresponding probe is improperly connected Fix the probe s connection The Defective One or more probes Follow the procedure described noise near an ex tended probe cable Probe Pilot are defective in DETECTING FAULTY Light is on PROBES to identify and replace the defective probe The display A variation in resist Make sure the probes are dry shows ance is induced ona and move them away from sudden probe drafts and sources of radiant variations in heating the room temperature There is electrical Do not run probe cables next to other power cables When crossing other power cables cross at 90 TC4 4SD rev 01 27 TC4 4SD PROBLEM CAUSE SOLUTION The fans or heating units connected to one of the stages are not operating The stage s fuse is open The display board interconnect
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