Multi-Tech Systems FR3060, FR3100, FR3060/V4, FR3060/V8, FR3100/V4, FR3100/V8 Network Card User Manual
Contents
1. Calibrate the Lower Voltage Level Closed Position Read displayed temperature of sensor that is controlling stage 1 Press Select until the setpoint for stage 1 is displayed If stage 1 is in the HEAT mode press Set down arrow until the setpoint is at least three degrees below the temperature in step 1 If stage 1 is in the COOL mode press Set up arrow until the setpoint is at least three degrees above the temperature in step 1 Press Enter to enter this value into memory Press Select once so that the throttling range is displayed Press Set up arrow or Set down arrow until the throttling range is two degrees Press Enter to enter this value into memory Connect voltmeter as shown in Fig 8 Press Select until Sensor A is displayed if the sensed temperature has drifted from step 1 you may need to repeat steps 2 through 8 Turn the zeroing voltage potentiometer with a screwdriver until the desired lower voltage i e 2V 6V etc is displayed on the voltmeter Confirm upper voltage level e Record the sensed temperature for sensor controlling stage 1 e Press Select until stage 1 setpoint is displayed e If stage 1 is in the HEAT mode press Set up arrow until setpoint is at least three degrees above the sensed temperature e 1 is in the COOL mode press Set down arrow until setpoint is at least three degrees below the sensed temperature e Press Enter to enter this value into memory e Re2. M954 OR M955 MODUTROL MOTOR uu M954 OR M955 OUTPUT 1 OUTPUT 2 MODUTROL MOTOR NO COM NC NO COMNC Adve Woo NOTE USE SEPARATE TRANSFORMER FOR 775 WHEN POWERING FROM 24 VAC A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED AN USE 1300 OHM RESISTOR FOR 2 MOTORS 910 OHMS RESISTOR FOR 3 MOTORS 4047EAU RESISTOR KIT SHIPPED WITH M954 M955 MOTORS INCLUDES 1300 OHM AND 910 OHM RESISTORS M4717 Fig 14 Reset control with Series 90 Modutrol Motor 63 2248 4 8 7775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER ML984 ACTUATOR A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED ISIS ISSISI NO COM NC NO COMNC DIP SWITCHES FOR SENSOR TO LOAD SELECTION OUTPUT 1 OUTPUT 2 M4716 Fig 15 Reset control with ML984 Valve Actuator Use shielded cable if any of the above conditions cannot be avoided N CAUTIO N Device Setup The T775J will not allow the user to program for both Determine the loads to be controlled and the operating heating cooling loads to be energized at the Same mode heat or cool and enter on the worksheet time For example Load 1 Compressor 1 cool Setpt 1 On at Diff 1 Off at Determine the setpoint Setpt and the switching differential Diff temperatures for each on off load and enter on the worksheet For example Load 1 Compressor 1 cool Setpt 1 78 F On
3. wells in wall mounted cases or on a bulb holder Multiple sensors can be parallel series wired to sense average temperature in large spaces In order to maintain control accuracy be sure the number of sensors parallel series wired is of the n2 power i e 1 4 9 16 etc See Fig 2 SENSORS TO T775 CONNECTIONS 1 AND 2 SENSOR A OR 7 AND 8 SENSOR B Aiai Fig 2 Parallel series wiring of sensors Sensor Mounting Mount the sensor on a wall or panel for sensing space temperature Fig 3 strap it to a pipe or insert it into a well Fig 4 for hot cold water sensing or tape it to a standard cap or bulb holder for duct air sensing To prevent moisture or condensation entering the sensor through the leadwire holes mount the sensor with leadwires exiting the bottom of the sensor NOTE Use heat conductive compound in immersion wells See Accessories 63 2248 4 7775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER Mounting Sensor in T7047C1090 Case Run wires from T775J through wall Mount case to wall with screws provided Connect wires from the T775J to two T terminals on the T7047C Case Cut and strip 193987GA Sensor leads to 3 to 4 inch 76 to 102 mm length and connect to T terminals in the case Position sensor as shown in Fig 3 assemble cover and tighten cover screws N CAUTION 1 Make sure that metal tube of sensor does not short against T terminals in wall mounted case 2 Do not run sensor wi
4. Off 80 80 80 Temp 78 Off 74 On Setpoint B Reset Direction Setpoint B 30 Reset Direction Increase Sensor B Reset Action Sensor B 10 Reset Action Below Reset Ratio A Reset Ratio B Reset Ratio A 1 Reset Ratio B 2 FORMULA 1 FORMULA 1 EXAMPLE Sensor B SensorB 10 F Setpoint B Setpoint B 30 F Temp Diff Temp Diff 20 F FORMULA 2 FORMULA 2 EXAMPLE Amount of Reset Reset Ratio B Amount of Reset 2 x 20 40 Reset Ratio A 1 19 63 2248 4 Honeywell Home and Building Control Home and Building Control Honeywell Inc Honeywell Limited Honeywell Limit e 1985 Douglas Drive North 740 Ellesmere Road Golden Valley MN 55422 Scarborough Ontario 2V9 63 2248 4 Rev 9 95 Printed in U S A Helping You Control Your World QUALITY IS KEY www honeywell com building components
5. RESET ACTION LEFT RESETS AS SENSOR B OUTDOOR TEMPERATURE DROPS BELOW SETPOINT B RIGHT RESETS AS IT RISES ABOVE IT M4719 C SWITCHES 3 AND 4 ARE NOT USED 4 20 mA This is a general purpose current mode output that can drive a 600 ohm maximum load without output current 15 63 2248 4 7775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER degradation This modulation output can be used with Honeywell Inc Modutrol IV Motors that accept an input signal of 4 20 mA or other Honeywell Inc motors with the use of resistor kits 0 18 Vdc voltage ranging This output mode is intended as a general purpose voltage output capable of driving a 2 kohm load minimum The span of voltage output is user selectable via a DIP switch see Fig 14 The spans offered are 3 8 14 and 17 volts A zero adjustment dial is provided to allow the user to select common ranges such as 4 7 Vdc 6 9 Vdc 2 10 Vdc 10 5 13 5 Vdc 14 5 17 5 1 15 Vac and 1 18 Vdc This modulation output can be used with Modutrol IV Motors that accept a voltage span comparable to any of the above The device is factory set at the 2 to 10 Vdc span maat Operation Mode Throttling range is centered around the setpoint e Modulating outputs are at the minimum or closed position at setpoint plus one half of the throttling range e Modulating outputs are at the maximum or open position at setpoint minus one half of the throttling range e Relay outputs are energized
6. Selections DIP switches see Fig 18 are provided for assignment of the reset configurations 63 2248 4 A second set of DIP switches provides voltage range selection for 0 to 18 Vdc modulating devices The span corresponding to each switch is given on the printed wiring board below each switch Fig 16 shows the location of this Switch the zeroing dial and how to set the voltage span See Fig 19 for a summary of action direction switches Keypad Programming and Display The T775J uses a liquid crystal display LCD for interactive prompting during programming and display of sensed temperatures and assigned setpoint and differential values User programming of the T775J is through four programming keys 3 2 1 B R W SERIES 90 4 20 mA AND 0 18 Vdc M2133A Fig 20 Modulating output terminals Programming Keys The four programming keys are Select Up arrow Down arrow and Enter Select key sequentially prompts the user for what parameter is being displayed setpoint differential stage energized heat or cool operation mode 1 2 indicating assigned stage Once the last parameter value is viewed pressing the Select key will again display the control values from the beginning of the display loop Upand Down arrow keys allow the displayed parameters to be increased or decreased After pressing the Select key a control value can be changed by using the arrow keys Control values will be increased
7. Series 90 and 4 20 mA output devices require no calibration Disconnect power to the device Remove the device cover and disconnect the load from the plus and minus outputs Connect a dc voltmeter to the plus and minus modulating outputs of the T775J see Fig 12 Loosen the screw in the upper right corner of the T775J approximately six turns with a screwdriver see Fig 12 Rotate the display printed wiring board outward from the device until it is approximately perpendicular to the enclosure see Fig 12 The T775 is factory set to a span of 8 Vdc To select a different span 3 Vdc 14 Vac or 17 Vdc change the switch positions on the voltage selection switch by opening the switch for 8 Vdc and closing the switch for the chosen span see Fig 12 Apply power to the device Press Select until Sensor A temperature is displayed Record the sensed temperature Determine the operating mode for stage 1 Heat or Cool Choose the appropriate example to follow Calculate the setpoints to be used for calibrating the device in column B following the example in column A 6900 11 Calibration Setpoint for Cooling Mode Fig 13 Setpoint for calibrating the lower voltage level closed position A B Sensed Temperature 78 Add 3 F or C to above 3 Calibration Setpoint 81 Calibration Setpoint for Heating Mode A B Sensed Temperature 78 Subtract 3 F or C from above 3 Calibration Setpoint 75
8. 7125 ORDERING INFORMATION When purchasing replacement and modernization products from your TRADELINE wholesaler or distributor refer to the TRADELINE Catalog or price sheets for complete ordering number 1 Model Number 2 Accessory If you have additional questions need further information or would like to comment on our products or services please write or phone 1 Your local Home and Building Control Sales Office check white pages of your phone directory 2 Home and Building Control Customer Logistics Honeywell Inc 1885 Douglas Drive North Minneapolis Minnesota 55422 4386 In Canada Honeywell Limited Honeywell Limit e 35 Dynamic Drive Scarborough Ontario M1V 429 International Sales and Service Offices in all principal cities of the world Manufacturing in Australia Canada Finland France Germany Japan Mexico Netherlands Spain Taiwan United Kingdom U S A 63 2248 4 2 7775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER Mounting Mounts on any suitable horizontal or vertical surface See Fig 5 for mounting hole locations Dimensions See Fig 1 Display Resolution Sensed temperature and other operating parameters are displayed via a liquid crystal display LCD with a resolution of 1 F or 1 C Accessories C7100C1003 Duct Mount Averaging Sensor T7047C1090 Wall Mount Sensor Case 1073244 Bulb Holder duct insertion 121371A Copper Immersion Well 121371E Stainless Steel Immersion Wel
9. F indicates an out of range sensor Make sure the sensors are properly connected For the T775J stage 2 load will be de energized when this error message is flashing for Sensor B When this message is flashing for Sensor A only stage 1 will de energized EF EEPROM Failure The values read back from the EEPROM are not the same as written into the EEPROM The EEPROM is not intended for field repair Replace the device CF Calibration Failure A calibration resistor reading was not within the range of the Analog to Digital converter This error message can not be field repaired Replace the device OF Stray interrupt Failure An unused interrupt occurred This error cannot be field repaired Replace the device CE Configuration Error The device hardware was configured to a nonexistent device This error cannot be field repaired Replace the device OE ROM Error The internal ROM of the microprocessor is defective This error cannot be field repaired Replace the device AE RAM Error The internal RAM of the microprocessor is defective This error cannot be field repaired Replace the device Setpoint Calibration To maintain temperature accuracy sensor wires should be 18 AWG two conductor 18 2 If the length of the sensor wire exceeds 400 feet recalibration will be necessary to maintain accuracy see Fig 21 Table 2 shows the corresponding temperature offset that should be used for different sensor wire leng
10. HE gt RESET RATIO NM RESET ACTION SWITCH OPEN OPEN CLOSED t RESET DIRECTION SWITCH OPEN F THE OUTSIDE SENSOR B TEMPERATURE IS ABOVE THE OUTSIDE TEMPERATURE SETPOINT THE CONTROL POINT WILL BE INCREASED BY THE RESET RATIO RESET ACTION SWITCH CLOSED OPEN CLOSED t p d RESET DIRECTION SWITCH CLOSED IF THE OUTSIDE SENSOR B TEMPERATURE IS ABOVE THE OUTSIDE TEMPERATURE SETPOINT THE CONTROL POINT WILL BE DECREASED BY THE RESET RATIO 2 N RESET ACTION SWITCH CLOSED 1 OPEN CLOSED M8110A f Fig 19 Summary of action direction switches 7775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER SETPOINT B OUTSIDE TEMPERATURE RESET DIRECTION BELOW ABOVE RESET DIRECTION SWITCH SWITCH RESET ACTION RESET ACTION SWITCH SWITCH RESETS CONTROL SETPOINT A UP WHEN SENSOR B OUTSIDE TEMPERATURE IS ABOVE SETPOINT RESETS CONTROL SETPOINT A UP_ WHEN SENSOR B OUTSIDE TEMPERATURE IS BELOW SETPOINT UP DOWN RESETS CONTROL SETPOINT A DOWN WHEN SENSOR B OUTSIDE TEMPERATURE IS ABOVE SETPOINT RESETS CONTROL SETPOINT A DOWN WHEN SENSOR B OUTSIDE TEMPERATURE IS BELOW SETPOINT RESET DIRECTION SWITCH RESET ACTION SWITCH RESET DIRECTION SWITCH A RESET ACTION SWITCH A SWITCH 1 CONTROLS THE RESET DIRECTION LEFT RESETS SENSOR A CONTROL POINT BOILER OR CHILLER WATER TEMPERATURE UP RIGHT RESETS IT DOWN B SWITCH 2 CONTROLS THE
11. Honeywell T775J Electronic Remote Temperature Controller GENERAL The T775J family of electronic remote temperature controllers provides reset control for chillers heating and cooling systems and other applications where electronic accuracy in addition to remote sensing is desired Copyright O 1995 Honeywell Inc All Rights Reserved PRODUCT DATA FEATURES T775 model provides reset control with two temperature inputs and one of either 4 to 20 mA 0 to 18 Vdc or Electronic Series 90 Proportional Integral modulating output with 0 or 1 relay output stages or 1 or 2 relay output stages with no modulation 40 F to 220 F 40 C to 105 C setpoint temperature range 45 F to 225 F 43 C to 107 C sensor display range 30 F to 140 F 34 C to 60 C ambient temperature range Linear platinum temperature sensor Adjustable temperature range and differential Adjustable throttling range of 2 to 30 F or C Adjustable reset ratio Liquid crystal display LCD indication for mode and output status Keypad provides ease of programming and operation Accuracy is within 1 F C at nominal input voltage nominal sensor ambient temperature 77 F 25 C operating ambient Accuracy can vary as parameters deviate from nominal Stages independently programmed for heating or cooling e 24 120 240 Vac voltage inputs Spdtrelay outputs IMPORTANT The T775 is an operat
12. SE OF ZEROING DIAL VOLTMETER OUTPUT 1 OUTPUT2 ISISIS sisis NO COM NC NOCOM NC CONNECT THE MODULATING VOLTAGE OUTPUT TO A VOLTMETER USING A SCREWDRIVER ADJUST THE LOWER LIMIT OF THE VOLTAGE TO THE DESIRED LEVEL ACCORDING TO THE STEPS OUTLINED IN CLAIBRATION PROCEDURE FOR 0 TO18 VDC OUTPUT M1345B Fig 16 Voltage span selection 63 2248 4 12 7775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER HEATING MODE SENSED TEMPERATURE 78 F CALIBRATION SETPOINT 75 F THROTTLING RANGE DEADBAND IS 1 8 OF THE THROTTLING RANGE COOLING MODE CALIBRATION SETPOINT 81 F SENSED TEMPERATURE 78 F MODULATION THROTTLING DEAD BAND RANGE MODULATION DEADBAND IS 1 8 OF THE THROTTLING RANGE M2149C Fig 17 Explanation of calibration setpoints for heating and cooling modes DESCRIPTION OPERATION Control Algorithm Reset Control The T775J operates as a reset controller with two sensor inputs The outdoor sensor is designated Sensor B and the control medium sensor is Sensor A Sensor B is wired to pins 7 and 8 of the input terminal block while Sensor A is wired to pins 1 and 2 The T775J is capable of providing modulating or relay outputs for reset control Each stage of the T775J has its own independent setpoint that can be configured to operate in the cooling or heating mode The mode of operation for each stage is user determined by the programming k
13. an be caused by poor wiring practices that must be avoided to assure proper operation a Do not route temperature sensor wiring with building power wiring Do not locate temperature sensor wiring next to control contactors Do not locate temperature sensor wiring near electric motors Do not locate temperature sensor wiring near welding equipment Make sure good mechanical connections are made to both the sensor and the controller Do not mount sensor with leadwire end wire end pointing up in an area where condensation can occur Use shielded wiring to connect the sensor to the T775 when an electrically noisy environment exists See Fig 6 b T775 SELECT p SET 7 ENTER GROUND SHIELD T775 CASE OR TO GROUNDING SCREW SHIELDED CABLE 7 OUTPUT 1 OUTPUT 2 Ss NO COM NC NO COMNC NOTE DO NOT GROUND SHIELDED CABLE AT SENSOR END GROUNDING SCREW SENSOR NOTE TO MINIMIZE NOISE PICKUP MAKE CONNECTION FROM SHIELDED CABLE AS CLOSE AS POSSIBLE TO SENSOR BODY Fig 6 Using shielded cable for cable runs longer than 25 feet 63 2248 4 7775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER a SELECT ENTER SENSOR 24 SENSOR B NO COM NC SE NO COMNC M8111 Fig 7 Reset control with 24 Vac input 24 Vac loads SENSOR A SENSOR B NO COM NC NO COMNC M8112 Fig 8 Reset control w
14. ase the display to the desired Reset Ratio B value Press Enter to enter the displayed value into memory Press Select to display the current Reset Ratio A Press Set up arrow to increase or Set down arrow to decrease the display to the desired Reset Ratio A value ooo GO 7775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER Q Press Enter to enter the displayed value into memory Press Select four times to return to stage 1 parameters Scroll through the programming loop a second time to confirm that the appropriate values have been entered into memory NOTE The T775J has three options for displaying the sensed temperatures 1 Sensor A only 2 Sensor B only 3 Alternating between Sensor A and Sensor B Press Select after viewing the switching differential for the final stage to display Sensor A temperature only D Press Select again to display Sensor B temperature only B Press Select again to alternate the display between Sensor A temperature and Sensor B temperature at approximately five second intervals Before replacing the cover on the T775J check to see that the control values have been recorded on the label on the back of the cover NOTE The control values programmed into memory will not be lost because of a power failure Calibration Procedure for 0 to 18 Vdc Output T775J NOTE The 0 18 Vdc Output T775J models have field selectable starting voltages and spans and will require calibration The
15. at 82 F Diff 1 4 F Off at 78 F Refer to the Control Algorithm section to calculate the load on and off temperatures and enter on the worksheet Remember that on off outputs are off at setpoint in both the heating and cooling operating modes When in cooling mode the load will be turned on at setpoint plus the differential When in heating mode the load will be turned on at setpoint minus the differential If this situation results cooling loads will be energized and heating loads will be prevented from also energizing The number 1 2 of these nonenergized loads will flash along with the word HEAT to indicate a call for both heating and cooling loads controlled by one sensor has occurred and to alert the user to reprogram the affected control values To calculate the Reset Ratio to be used determine the number of degrees the setpoint for the control sensor A should be reset Reset Ratio A Value to compensate for a change in the reset compensation sensor B Reset Ratio B Value Enter the values on the Device Programming Worksheet values should be whole numbers from 1 to 30 N CAUTION A reset ratio lower than one can result in unstable control Widening the throttling range and or differential will minimize this effect 63 2248 4 7775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER Q Determine the desired Reset Direction up or down and enter on the Device Programming Worksheet This will determine if the se
16. at setpoint minus differential and de energized at setpoint Cooling Operation Mode The throttling range is centered around the setpoint Modulating outputs are at the minimum or closed position at setpoint minus one half of the throttling range Modulating outputs are at the maximum or open position at setpoint plus one half of the throttling range Relay outputs are energized at setpoint plus differential and de energized at setpoint Contact Closure Override Input A two terminal input is provided to allow the user to override a relay energized condition of all outputs When used with modulating devices a contact closure override input causes the output to return to its minimum position This function is generated by a contact closure between terminal pins 3 and 4 of the terminal block for sensor input shown in Fig 4 This can be achieved manually or by using an EMS controller or time clock with normally open contacts i e W7505 S7005 When contact closure override is active the display will show the number of stages that would have been energized and STAGE ENERGIZED will flash F C Selection A single jumper plug controls indication of the displayed temperature value The location of this jumper is shown in Fig 5 The unit is shipped with the jumper installed in the F mode Remove the jumper plug for the mode Remove and reapply power if the jumper is removed with the device powered DIP Switch
17. cord the desired upper voltage level e Ifthe value is not correct make sure the correct span switch is depressed and the stage is in the correct mode of operation HEAT or COOL Verify which sensor is controlling stage 1 B Rotate the display printed wiring board back into the device and tighten the screw in the upper right corner Disconnect the voltmeter from the modulating outputs and connect the load to the plus and minus terminals of the modulating terminal block B Return to Programming Stage Control Values to enter the desired stage control values 8060 OO 63 2248 4 7775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER STEP 2 VOLTAGE SPAN STEP 1 ZEROING SELECTION SWITCH VOLTAGE DIAL 4 SELECT 1 ENTER MODULATING SOY VOLTAGE OUTPUT SENSOR INPUT TOD AND 24 VAC TERMINALS OUTPUT 1 OUTPUT 2 OUTPUT 1 OUTPUT 2 leisio ISISIS NO COM NC NOCOM NC NO COM NC NOCOM NC REMOVE FRONT COVER AND LOOSEN SCREW GENTLY PULL THE TOP PWB UPWARDS AROUND IN UPPER RIGHT CORNER OF DEVICE WITH A ITS HINGE STOP WHEN THE PWB IS PERPENDICULAR TO THE ENCLOSURE SCREWDRIVER 1 2 3 4 CLOSED 1 O P EN 3 8 14 17 VOLTAGE SPANS WHEN SWITCH IS DEPRESSED THE VOLTAGE RANGE IDENTIFIED BY THE VOLTAGE SPAN BELOW THAT SWITCH IS SELECTED IN THIS CASE A VOLTAGE SPAN ON 8 VDC HAS BEEN SELECTED THIS SPAN CAN BE 2 10 VDC 10 18 VDC ETC BY U
18. ed to gain access to 120 or 240 Vac input terminals and the load relay output terminals The T775J can be used to provide reset control of damper and valve actuators that accept 4 to 20 mA 0 to 18 Vdc or Electronic Series 90 modulating inputs and to control one on off load Depending on the application and the motor or actuator used the T775J can control up to three Modutrol motors by using resistor kits that are available as accessories for existing motors Use specified resistor kits to control an Electronic Series 90 Modutrol Motor with a 4 to 20 mA controller Obtain information on these kits from either the TRADELINE catalog motor specification or your local distributors See Fig 7 through 15 for typical T775J wiring and applications 7775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER LCD TEMPERATURE DISPLAY PROGRAMMING KEYS SELECT SET 4 SENSOR INPUT TOD AND 24V TERMINALS 12348678 E d SA TOD 24V SB KNOCKOUT A 321 MODULATING OUTPUT ELECTRONIC SERIES 90 4 20 mA OR 0 18 VDC DEPENDING ON MODEL ae OUTPUT 1 sisis NO COM NC KNOCKOUT m RELAY OUTPUT STAGES L1 br eee OC F SELECTION SA SB um veel ENTER RESET DIP SWITCHES MOUNTING HOLE LOCATION pas LINE g2 D ME VOLTAGE 559 INPUTS OUTPUT 2 COMNC KNOCKOUT M8118 Fig 5 Feature locations IMPORTANT Erratic temperature readings from the 193987GA Sensor c
19. eset Load in the Checkout Table Verify which loads are energized by using the Checkout Table As shown in the example the display will indicate which stages are energized in the lower right hand corner NOTE If no stages are energized the words stage energrzed will not appear If the sensed temperature is between the on and off temperatures the load may be either energized or deenergized Refer to the Control Algorithm subsection of Description Operation section for further explanation If an error message flashes refer to the description of these messages in Error Messages subsection If SF flashes check the sensor connections If they are properly connected and SF continues to flash check the sensor location to assure it is located in an ambient condition that is within the sensor s ambient capability 40 F to 220 F If an error message other than SF flashes the device cannot be field repaired Replace the device For the Electronic Series 90 output T775J1019 and T775J1043 proper output levels can be checked by measuring the open circuit voltage between terminals 1 W and 2 R Minimum Drive Closed signal lt 0 17 Vdc Maximum Drive Open signal 1 7 Vdc 7775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER Table 3 Checkout Table Checkout Table Checkout Table Example Heat or Load 1 Load 2 Load 1 Load 2 Heat Heat Sensor Sensor A A 80 Sensor Sensor B B 10 120 Off 116 On 118 Off Sensed 80
20. ess Select to display the current stage setpoint Press Set up arrow to increase or Set down arrow to decrease the display to the desired setpoint Press Enter to enter the displayed value into memory Press Select to display the current stage throttling range or switching differential Press Set up arrow to increase or Set down arrow to decrease the display to the desired throttling range or switching differential Press Enter to enter the displayed value into memory Repeat steps 2 through 7 to program each additional stage oo oo IMPORTANT After initial programming altering the setpoint up or down for stage 1 will result in a change in setpoint 2 by the same number of degrees and in the same direction If increasing or decreasing the setpoint for stage 1 results in exceeding the control limits 40 F to 220 F for stage 2 the control will not allow the user to enter a value for stage 1 higher or lower than this limit This will allow for easy sequential output staging to be modified while keeping the margin intact between setpoints Programming Reset Values Press Select to display the current reset compensation setpoint Sensor Press Set up arrow to increase or Set down arrow to decrease the display to the desired setpoint Press Enter to enter the displayed value into memory Press Select to display the current Reset Ratio B value Press Set up arrow to increase or Set down arrow to decre
21. eys For reset control with two outputs one of which is modulating the modulating output will be designated as stage 1 on the LCD display Although the modulating output is designated as stage 1 it can be programmed to energize after the second stage is energized The T775J offers four different reset configurations and an adjustable reset ratio between 30 to 1 and 1 to 30 The reset ratio expresses the amount of change in the heating or cooling medium control point caused by a change in the outdoor temperature It is the ratio of outdoor temperature change to heating or cooling control point change Sensor B Sensor A The reset ratio can be an inverse ratio when the outdoor temperature goes down the control point goes up or a direct ratio when the outdoor 63 2248 4 7775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER temperature goes down the control point goes down The type of ratio is selected by using the two DIP switches provided The four possible reset operating configurations are illustrated and explained in Fig 18 Switches 1 and 2 are shown but switches 3 and 4 are unused however the location of these DIP switches is shown in Fig 5 CAUTION AN A reset ratio lower than one can result in unstable control Widening the throttling range and or differential minimizes this effect Proportional Integral Modulating Control Proportional Integral P l control provides fast responsive operation of the contro
22. ing control not a limit or safety control When used in applications requiring safety or limit controls use a separate safety or limit control device in conjunction with the T775 a The Electronic Series 90 output provided with T775J models will not drive electromechanical Series 90 slidewire devices Contents General 1 gluten M 1 Specifications sssssssssseseeeeenenenee 2 Ordering Information seen 2 clu 3 Description Operation seen 13 Checkout reme caet ene arin eg iUas 18 63 2248 4 7775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER SPECIFICATIONS Electrical Ratings Voltage Input 24 120 240 Vac 50 60 Hz 10 15 Power Consumption IMPORTANT 50 Hz 10 VA maximum The specifications given in this publication do not 60 Hz 8 VA maximum include normal manufacturing tolerances Therefore an individual unit may not exactly match the listed Contact Ratings specifications Also this product is tested and 1 2 HP 9 8 FLA 58 8 LRA at 120 Vac calibrated under closely controlled conditions and 1 2 HP 4 9 FLA 29 4 LRA at 240 Vac some minor differences in performance can be 125 VA pilot duty at 120 240 Vac expected if those conditions are changed 10A at 24 Vac resistive Models See Table 1 Temperature Accuracy The T775J family of electronic remote temperature controls 1 F 0 6 C at nominal inp
23. ith 120 Vac input 120 Vac loads 63 2248 4 SELECT SET 1 ENTER SENSORA SENSOR B 40 VAC Fig 9 Reset control with 240 Vac input 240 Vac loads SENSORA SENSOR B M8114 Fig 10 Reset control with 120 Vac input 24 Vac loads 7775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER ELECTRONIC SERIES 90 MODUTROL MOTOR SELECT 1 ENTER SENSOR 24 SENSOR POWER INPUT NO COMNC T775J A USE SEPARATE TRANSFORMER FOR T775 WHEN POWERING FROM 24 VOLTS NOTE T775J1019 T775J1043 PROVIDE ELECTRONIC SERIES 90 OUTPUT THAT WILL NOT DRIVE 135 OHM SLIDEWIRE DEVICES PROPER OUTPUT LEVELS CAN BE CHECKED BY MEASURING THE OPEN CIRCUIT VOLTAGE BETWEEN TERMINALS 1 W AND 2 R MINIMUM DRIVE CLOSED lt 0 17 VDC MAXIMUM DRIVE OPEN 1 7 VDC M8115A Fig 11 Reset control with 24 Vac input Series 90 and 24 Vac loads 4 20mA MODULATING MOTOR OR ACTUATOR SENSOR A SENSOR B POWER INPUT 120 VAC Fig 12 Reset control with 120 Vac input 4 to 20 mA and 120 Vac loads 7 63 2248 4 7775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER MODULATING MOTOR WITH VOLTAGE CONTROL INPUT E SELECT 7 ENTER SENSOR SENSOR POWER INPUT 240 VAC Fig 13 Reset control with 240 Vac input 240 Vac and 0 to 18 Vdc loads iL HOT M954 OR M955 MODUTROL MOTOR DIP SWITCHES FOR SENSOR TO LOAD SELECTION SELECT p SET ENTER
24. l 107408 Heat Conduction Compound 4 ounce C7043A1098 Case and Immersion Well 203401B Waterproof Sensor 2035314 Panel Mounting Kit A775A1003 Sensor Simulator Use of C7100C1003 decreases accuracy of T775 to 2 F 1 C E SELECT p SET4 ENTER Honeywell gt 1 1 4 lt 4 3 13 16 97 82 4 3 4 121 1 7 8 22 DIAMETER Ls 2 3 8 60 M344C Fig 1 Approximate T775J dimensions in in mm INSTALLATION When Installing this Product Read these instructions carefully Failure to follow them could damage the product or cause a hazardous condition Check the ratings given in these instructions and on the product to make sure the product is suitable for your application Q Installer must be a trained experienced service technician After installation is complete check out the product operation as provided in these instructions N CAUTION Disconnect power before installation to prevent electrical shock or equipment damage Location and Mounting Mount the controller in any convenient interior location using the two mounting holes provided Mounting screws are not included Use controller dimensions in Fig 1 as a guide Sensor Location The 193987GA Sensor can be used up to 1000 ft 304m from the T775 using standard AWG 18 2 unshielded wire If longer than 25 feet in an electrically noisy environment use shielded cable Locate the sensor on pipes in immersion
25. lled devices in reacting to temperature changes by providing an output signal proportional to the deviation between setpoint and actual temperature An integral proportion also provides a time dependent output signal that is dependent on the length of time of the deviation between actual set point and sensed temperature The I algorithm places the control setpoint in the middle of the throttling range A deadband around setpoint exists and is proportional to the throttling range For the T775 this deadband is 1 8 of the throttling range There are three modulation options available for the T775J see Fig 20 for modulating output connecting terminals Fig 18 Reset switch configuration 63 2248 4 14 RESET DIRECTION SWITCH RESET DIRECTION SWITCH WILL RESET 1 THE COUNTROL POINT UP WHEN OPEN OR DOWN WHEN CLOSED 2 4 RESET ACTION SWITCH RESET ACTION SWITCH RESET IF THE OUTDOOR TEMPERATURE SENSOR B IS ABOVE WHEN CLOSED OR BELOW WHEN OPEN THE OUTDOOR TEMPERATURE SETPOINT SWITCH S OPEN PWB V eden SIDEVIEW Ps RESET DIRECTION SWITCH OPEN 1 F THE OUTSIDE SENSOR B TEMPERATURE IS BELOW THE OUTSIDE TEMPERATURE SETPOINT THE CONTROL POINT WILL BE INCREASED BY THE 2 RESET RATIO RESET ACTION SWITCH OPEN OPEN CLOSED 22 RESET DIRECTION SWITCH CLOSED 1 F THE OUTSIDE SENSOR TEMPERATURE IS BELOW THE OUTSIDE TEMPERATURE SETPOINT THE CONTROL POINT WILL BE DECREASED BY T
26. n and enter in the space indicated in the Checkout Table Determine the reset action above or below from the Device Programming Worksheet and enter in the space indicated in the Checkout Table Plot the programmed on and off open closed values at which the device will energize and deenergize each output load by referring to the Device Programming Worksheet Calculate the amount of reset that exists using Formula 1 a Subtract setpoint B from Sensor B and enter the result as Temp Diff b If the result is negative reset will occur only if the Reset Action Switch is set for reset below setpoint If the result is positive reset will occur if the Reset Action switch is set for reset above setpoint c Determine if a reset condition exists d If no reset condition exists On Off Control Values have not been changed e Goto step 11 If a reset condition exists calculate the amount of reset using Formula 2 63 2248 4 18 NOTE g Divide Reset Ratio value by Reset Ratio value h Multiply the result in step g by Temp Diff step a i If Reset Direction Switch is set to increase disregard any negative signs and add the amount of reset calculated in step h to the on off values j If the Reset Direction Switch is set to decrease disregard any negative signs and subtract the amount of reset calculated in step h from the on off values k Plot the new values on the appropriate R
27. or decreased by 1 F or C each time the arrows are depressed Enter key places the new value into the memory of the microprocessor A control value or operation will not be effective in the memory until the Enter key is depressed Control values and operation selection will remain in the device memory even after power is removed The Select and Enter keys must be pressed simultaneously to change the control algorithm from heating to cooling or from cooling to heating These parameters heat and cool are not displayed during normal Select key sequences The only parameters displayed after pressing the Select and Enter keys at the same time are stage indication and Heat or Cool To change the operation from heating to cooling or vise versa for a desired output stage use the arrow keys as required Once the mode is changed depressing the Enter key is necessary to enter this change into the microprocessor memory The next stage of heat or cool assignment will appear after the Select key is pressed When all stages are selected the display will revert back to sensed temperature and load energized status 7775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER Display Once power is applied or restored to the device the display will count down from 210 until the display reads zero during which time any previously energized outputs will be de energized This is intended to protect compressors in the event of a power outage To avoid viewing thi
28. ring even if using shielded cable with building power wiring o O06 T7047C1090 WALLMOUNT SENSOR CASE OPTIONAL TN LEADWIRES TO T775 1 193987GA SENSOR SCREW bi _ ee SCREW TERMINAL CAUTION POSITION SENSOR AWAY FROM SCREW TERMINALS M8109C Fig 3 Sensor mounted on wall COVER SENSOR LEADS WITH HEAT CONDUCTIVE COMPOUND 0 SENSOR PLACED IN WELL No 1 2 NPT Lg IMMERSION WELL M5249 Fig 4 Sensor inserted in immersion well 63 2248 4 Wiring N CAUTION Disconnect external power before wiring to prevent electrical shock or equipment damage IMPORTANT The T775J is not intended for safety limit applications It is an operating control not a safety control Disconnect external power before wiring to prevent electrical shock or equipment damage All wiring must comply with applicable local codes and ordinances Refer to Fig 4 for locating the appropriate power inputs remote sensor inputs relay modulating output terminals contact closure input and sensor selection switch Access the terminals through standard conduit knockouts A C located around the enclosure perimeter NOTE Hole A should only be used for remote sensor wiring low voltage wiring and access to modulating output When wiring the input power only one source of power can be applied to the T775J e g 24 or 120 or 240 Vac Knockouts B and C can be us
29. s entire countdown press the Select key The LCD display will now show what it normally reads load sensed temperature stages energized and which Sensor A or B is being read At any time during the programming or review procedure the display will revert back to showing the sensed temperature and stage status indication 60 seconds after the last key closure The user has three display options to select The display can be configured to alternately indicate Sensor A and Sensor B sensed temperature at a five second rate or the display can be locked on to sensor A or sensor B to sense temperature continuously This selection is accomplished by stopping at Sensor A or Sensor B sensed temperature points in the Select key scrolling loop To lock on to either sensor the user must scroll the Select key through the loop to select the sensed temperature prompt desired The display will stick to that parameter until the Select key is activated to advance the loop When the loop is stopped at any other prompt the display will alternately indicate Sensor A and Sensor B sensed temperatures after 60 seconds from the last key closure or immediately after the Select key is pressed at the end of the programming sequence Error Messages There are seven error messages that can be displayed in response to software or hardware problems with the T775J The error codes that may be seen flashing on the display are SF Sensor Failure The display flashing S
30. ths This temperature offset should be added to the desired temperature setpoint for these applications RESISTANCE OHMS 4200 4000 3800 3600 3484 6 5 OHMS 9400 AT 77 F 25 C 3200 20 40 60 80 100 120 140 160 180 200 220 t 70 10 20 30 40 50 60 70 80 90 100 TEMPERATURE DEGREES M2829 Fig 21 Resistance versus temperature performance characteristics Table 2 Sensor Wire Length Calibration Offset Using 18 Awg Wire Sensor Wire Length ft Calibration Offset 1 63 2248 4 7775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER CHECKOUT After the controller is installed and wired apply power Using the programmed control values verify device operation after completing Table 3 e oo o o o As illustrated in the example record the sensed temperatures for both Sensor A and Sensor B as displayed on the controller Sensor A senses the temperature for loads 1 and 2 Sensor B senses the temperature that determines the amount of reset Write the operating mode for each stage in the Checkout Table heat or cool Write Sensor A temperature for each load on the Sensed Templine Write Sensor B temperature in the space indicated in the Checkout Table Press Select until Setpoint B is displayed Write Setpoint B in the space indicated in the Checkout Table Determine the reset direction up or down from the Device Programming Worksheet in the Installation sectio
31. tpoint for the control Sensor A will be reset up or down Determine the desired Reset Compensation Setpoint for Sensor B Enter the value on the Device Programming Worksheet Determine whether the desired Reset Action should occur above or below the Reset Compensation Setpoint Enter abo ve or 5e owon the Device Programming Worksheet Remove the T775J cover and enter the values listed on the worksheet and the date in the first column on the label inside the T775J cover Device Programming Worksheet Load 1 Setpt 1 Diff 1 or Throttling Range On at Off at Load 2 Setpt 2 Diff 2 On at Off at Reset Ratio Reset Ratio B Value Reset Ratio A Value Reset Direction Compensation Setpoint Sensor B ResetAction Device Programming Factory Default Values When power is initially applied to the T775J the control points will be at the factory set default values Default values are Operating Mode Differential Throttling Range Stage 1 72 F 2 F Heat Sege 7ZF __ Het Heat Set the reset direction determined previously by setting the DIP switch in the upper right corner of the T775 see Fig 5 Switch 1 should be open to reset the control point 4o and reset the control point Qown Set the reset action determined previously by setting the DIP switch in the upper right corner of the T775J Switch 2 should be open if the reset is to occur when the o
32. ut voltage 77 F 25 provides reset control for chillers heating and cooling operating ambient nominal sensor ambient systems and other applications where electronic accuracy in addition to remote sensing is desired Setpoint Adjustment Range 40 F to 220 T775J provides reset control with wotemperature inputs and 40 C to 4105 C one of either 4 to 20 mA Electronic Series 90 or 0 to 18 Vdc Proportional Integral modulating output with O or 1 relay Operating Ambient Temperature output stages or 1 to 2 relay output stages with no Controller 30 F to 140 F 34 C to 60 C eee Includes two part number 193987GA Sensor 45 F to 225 F 43 C to 107 C Throttling Range for Modulating Output Table 1 T775J Model Numbers and Outputs Adjustable 2 to 30 F or C oM Differential Range for Staged Output Model Modulation Number of Relay Adjustable 1 to 30 F Number Type Outputs Adjustable between 1 to 30 and 30 to 1 T775J1027 4 20 mA Operating Humidity 17751085 0 18 Vdc 5 to 95 percent relative humidity noncondensing 1775J1043 Sensor Positive coefficient platinum type 4 8 ohms F 1000 feet T775J1050 4 20 mA maximum distance between sensor and solid state controller T775J1068 0 18 Vdc requires calibration over 400 feet T775J1076 Approvals Underwriters Laboratories Inc Listed File No E4436 Guide XAPX Canadian Standards Association Certified File No LR4
33. utdoor temperature is e owthe reset compensation setpoint and c osed if the reset is to occur when the outdoor air temperature is above the reset compensation setpoint Before programming the T775u verify that the F C selection jumper is properly installed The T775J is shipped from the factory with the jumper installed in the F position If C is desired remove the jumper Apply power to the device The device will begin counting down from 210 This countdown sequence will last for approximate 3 1 2 minutes Heat 63 2248 4 10 To avoid this time delay press Select Press Select and Enter keys simultaneously to begin programming the load operating mode heat or cool The display will indicate heat or cool and the stage number Press Set down arrow to change to cooling Set up arrow will change back to heating Press Enter to program the displayed mode into memory Press Select to go to the next step Repeat steps 6 through 8 for additional changes oo e Programming Stage Control Values f you have a 0 to 18 Vdc output T775u go to the Calibration Procedure for 0 to 18 Vdc Output T775 before continuing to program the stage control values The Series 90 and 4 20 mA output T775J Controller does not require calibration so proceed to step 2 IMPORTANT When programming all stages it is important to note that the first stage designated on the LCD display is always the modulating output Pr
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