KMC Controls BAC-4000 series Installation, Operation, And Application Manual Download Page 106

Page: 106 / 128

Roof Top Unit—Two-stage DX cooling, hot water heating with
economizer

This application applies to models BAC-4003CW0002, BAC-4023CW0002,
BAC-4203CW0002, and BAC-4223CW0002.

Fan status switch (FST) is optional. Typically it is used only when the
AppStat is connected to a network.

Discharge air temperature (DAT) and outdoor air temperature (OAT)
sensors are required for economizer operation.

For dehumidification, the AppStat must include a humidity sensor.

The remote temperature sensor (RS) is optional.

Connect staged cooling and fan outputs to 24 volt AC pilot duty inputs.

For single stage cooling, do not connect Y2.

additional details on connecting sensors, see

Connecting inputs

on page

For additional details on connecting the fan and valves, see

Connecting

outputs

on page 24

KMC Part
No.

Description

Function

CSE-1102

Differential Pressure Switch, Barb Fittings

Fan status switch

STE-1405

Duct temperature sensor, 10 kΩ Type III

Discharge air temperature

STE-1451

Outdoor air temperature sensor, 10 kΩ Type III

Outdoor air temperature

STE-6011W10

Temperature sensor, 10 kΩ Type II

Remote space temperature

XEE-6111-040
XEE-6112-040
XEE-6311-075

Single-hub 120 volt power transformer
Dual-hub 120 volt power transformer
120/240/277/480VAC, 24 VAC, 75 VA transformer

Controls transformer

Table 6–15 Materials list

Section 6: Application drawings

KMC Controls, Inc.

106

Revision G

Summary of Contents for BAC-4000 series

Page 1: ...Installation Operation and Application Guide for AppStat BAC 4000 series controllers for Fan Coil Units Roof Top Units and Heat Pump Units Revision G ...

Page 2: ...ritten permission of KMC Controls Inc Printed in U S A The material in this manual is for information purposes only The contents and the product it describes are subject to change without notice KMC Controls Inc makes no representations or warranties with respect to this manual In no event shall KMC Controls Inc be liable for any damages direct or incidental arising out of or related to the use of...

Page 3: ...necting to a three speed fan 24 Connecting to a modulating fan 25 Connecting on off valves 26 Connecting to modulating valves 27 Connecting an economizer 28 Connecting power 28 Maintenance 29 Section 3 User functions 31 Operating the AppStat 31 Entering a user password 34 Changing the active setpoints 35 Setting the operating modes 36 Section 4 Commissioning functions 39 Enter the commissioning mo...

Page 4: ...or fan coil units 72 One two and three speed fans 72 Modulating fans 72 Automatic fan control 73 Modulating cooling and heating for Roof Top Units 73 Cooling 73 Heating 73 Valve action 73 Staged heating and cooling for for roof top and heat pump units 74 Staged cooling 74 Staged heating 74 Fan control for roof top and heat pump units 74 Economizer cooling for roof top and heat pump units 75 Heat p...

Page 5: ...g 98 Roof Top Unit Two stage gas heat and two stage DX cooling with economizer 100 Roof top unit Cooling and heating with modulating valves and economizer 102 Roof Top Unit Two stage gas heat chilled water cooling with modulating valve and economizer 104 Roof Top Unit Two stage DX cooling hot water heating with economizer 106 Heat Pump Unit applications 108 Heat pump unit Three heat two cool 108 H...

Page 6: ...Contents KMC Controls Inc 6 Revision G ...

Page 8: ...st installations For details on input and output connections see the section Application drawings on page 77 Analog inputs Analog inputs represent BACnet analog input objects and are configured for discharge air temperature remote temperature sensor water temperature sensor and fan status Not all input sensors are applicable or required for all models Sensors are automatically detected Inputs acce...

Page 9: ... to peer BACnet MS TP network communications Network speeds from 9600 to 76 800 baud Front panel configurable device instance MAC address and baud Automatic baud detection Screw terminal block mounted to backplate Wire size 14 22 AWG Meets or exceeds ANSI ASHRAE BACnet Standard 135 2008 for Application Specific Controllers Accuracy temperature only models Type Thermistor Accuracy 0 36 F 0 2 C Resi...

Page 10: ...e following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Environmental limits Operating 32 to 120 F 0 to 49 C Shipping 40 to 140 F 40 to 60 C Humidity 0 95 relative humidity non condensing Installation Supply voltage 24 volts AC 15 20 50 60 Hz 12 VA Class 2 only non ...

Page 11: ...pStat Dimensions Motion sensor Motion sensors are options available only on select models Detector type Passive infrared Range 33 feet 10 meters See the following diagrams Installation Operation and Application Guide for AppStat Section 1 Introduction to the AppStat Revision G 11 ...

Page 12: ...ailable from KMC Controls Inc XEE 6111 040 Single hub 120 volt power transformer XEE 6112 040 Dual hub 120 volt power transformer XEE 6311 075 120 240 277 480VAC 24 VAC 75 VA transformer HMO 10000W White mounting plate kit for retrofit on horizontal boxes or 4 x 4 handy boxes Section 1 Introduction to the AppStat KMC Controls Inc 12 Revision G ...

Page 13: ...manual fan control Remote space temperature sensor Local temperature setback mode based on optional built in motion sensor Dehumidification on models with humidity sensor See the following chart for the specific features included with each model Illustration 1 1 Model numbers for fan coil units BAC 4 _ _ _ CW0001 1 3 speed fan On off valves 2 3 speed fan Modulating valves 3 3 speed or modulating f...

Page 14: ...chart for the specific features included with each model Illustration 1 2 Model numbers for roof top units BAC 4 _ _ _ CW0002 1 2H 2C On off valves or stages 3 2H 2C On off or modulating valves and economizer 0 Without humidity 2 With humidity 0 Without motion 2 With motion Heat pump units The model numbers for these controllers end with 0003 The inputs outputs and sequences of operation are confi...

Page 15: ... Illustration 1 3 Model numbers for heat pump units BAC 4 _ _ _ CW0003 1 3H 2C 3 3H 2C and economizer 0 Without humidity 2 With humidity 0 Without motion 2 With motion Installation Operation and Application Guide for AppStat Section 1 Introduction to the AppStat Revision G 15 ...

Page 16: ...ciated guidelines to avoid hazards Danger Danger represents the most severe hazard alert Bodily harm or death will occur if danger guidelines are not followed Warning Warning represents hazards that could result in severe injury or death Caution Caution indicates potential personal injury equipment damage or property damage if instructions are not followed Note Notes provide additional information...

Page 17: ...ower on page 28 Maintenance on page 29 Planning for motion sensing For models with a motion sensor mount the AppStat on a wall that will have an unobstructed view of the typical traffic in the coverage area When choosing a location do not install the sensor in the following areas Behind curtains or other obstructions In locations that will expose it to sunlight or heat sources Near a heating or co...

Page 18: ...rared rays Small animal movement Mounting the AppStat For the most accurate performance install the AppStat on an inside wall where it can sense the average room temperature Avoid locations with direct sunlight heat sources windows air vents and air circulation or obstructions such as curtains furniture etc The AppStat must not be Mounted on an exterior wall Mounted on or near an object with large...

Page 19: ...ial If replacing an existing thermostat label existing wires for reference when removing the existing thermostat Illustration 2 2 AppStat mounting base details A 5 12 in 130 mm 3 50 in 89 mm Inputs and network Power and outputs Installing the AppStat To install the controller on a mounting base do the following 1 Turn the Allen screw in the base of the sensor clockwise until it clears the case Tur...

Page 20: ...he mounting screws supplied with the controller Using screws other than the type supplied may damage the AppStat Connecting inputs The inputs for the AppStat are configured for specific functions and do not require set up in the field Not all inputs are required for every model or application See the topic BACnet objects on page 114 for the configuration properties of the input objects Remote spac...

Page 21: ...is application Follow the instructions supplied with the sensor for installation Illustration 2 4 Wiring for Discharge Air Temperature Sensor STE 1405 or equivalent DAT MS TP B A RS WST GND DAT COM FAN L FAN M FAN H R BO4 BO5 GND AO6 AO8 AO7 24VAC Fan status switch optional Connect a Normally Closed Fan Status switch to the Discharge Air Temperature DAT input and ground GND terminals The input inc...

Page 22: ...O8 AO7 24VAC Water temperature sensor Connect a 10kΩ Type III thermistor temperature probe to the water temperature WST input The input includes the internal pull up resistor An STE 1455 sensor is suitable for this application Follow the instructions supplied with the sensor for installation Note The water temperature sensor is a required input sensor for 2 pipe fan coil units Section 2 Installing...

Page 23: ... air temperature OAT input The input includes the internal pull up resistor An STE 1451 sensor is suitable for this application Follow the instructions supplied with the sensor for installation Illustration 2 7 Wiring for an outside air temperature sensor STE 1451 or equivalent MS TP B A RS OAT GND DAT ECON G Y1 Y2 RC W1 W2 RH AO6 AO7 COM 24VAC OAT Installation Operation and Application Guide for ...

Page 24: ...iguration properties of the output objects Caution Improperly connecting loads or equipment to output terminals may damage the equipment Connect only as shown in the following diagrams or application drawings Connecting to a three speed fan The following diagram shows the connections for a three speed fan The fan circuits must be a 24 volt AC pilot duty only For a single speed fan use only the FAN...

Page 25: ...O7 24VAC Connecting to a modulating fan The following diagram shows the connections for a modulating speed fan The fan start circuit must be a 24 volt AC circuit Connect it to the FAN L output The speed control is a 0 10 volt DC analog output Installation Operation and Application Guide for AppStat Section 2 Installing the AppStat Revision G 25 ...

Page 26: ...ting on off valves The following diagram shows the connections on off valves The valves are activated by 24 volts AC The outputs are 24 volt relays Illustration 2 10 Connections to on off valves Cooling Heating 24 VAC MS TP B A RS WST GND DAT COM FAN L FAN M FAN H R BO4 BO5 GND AO6 AO8 AO7 24VAC Section 2 Installing the AppStat KMC Controls Inc 26 Revision G ...

Page 27: ...ntrol signal is a 0 10 volt analog output Illustration 2 11 Modulating heating and cooling valves 0 10 VDC 0 10 VDC Cooling Heating 24 VAC MS TP B A RS WST GND DAT COM FAN L FAN M FAN H R BO4 BO5 GND AO6 AO8 AO7 24VAC Installation Operation and Application Guide for AppStat Section 2 Installing the AppStat Revision G 27 ...

Page 28: ...e following guidelines when choosing and wiring transformers Use only a Class 2 transformer of the appropriate size to supply power KMC Controls recommends powering the AppStat from a dedicated controls transformer Connect the transformer s neutral lead to the COM terminal Connect the AC phase lead to the 24VAC terminal Power is applied to the controller when the transformer is powered See Install...

Page 29: ...ST GND DAT COM FAN L FAN M FAN H R BO4 BO5 GND AO6 AO8 AO7 24VAC Maintenance Remove dust as necessary from the holes in the top and bottom Clean the display with soft damp cloth and mild soap Installation Operation and Application Guide for AppStat Section 2 Installing the AppStat Revision G 29 ...

Page 30: ...Section 2 Installing the AppStat KMC Controls Inc 30 Revision G ...

Page 31: ... simple context sensitive menus The menus are opened and options are selected by using the buttons and a color display on the front of the AppStat Pressing either the up button or down button changes a selection setting or value Pressing the Enter button saves the selected setting or value Typically the Enter button is the middle of the three buttons below the display Saving a selection also advan...

Page 32: ...fan icon rotates when the system fan is operational In systems with multispeed fans the icon rotation is the same regardless of speed When fan operation is set to automatic the word Auto is placed under the icon Fan Occupied Occupancy is set to occupied by the schedule maintained in the controller Occupancy Unoccupied Occupancy is set to unoccupied by the schedule maintained in the controller Occu...

Page 33: ...is off Heating Cooling Dehumidification During dehumidification the system will heat and cool at the same time to remove humidity and maintain the active temperature setpoint The icon is in motion while dehumidification is taking place Heating Cooling Operating mode icons continued Installation Operation and Application Guide for AppStat Section 3 User functions Revision G 33 ...

Page 34: ...play F 70 AUTO AUTO 2 Enter the Level 1 password 1 Press any button on the AppStat The display changes to the Security User Level display 2 Press either the or button to change the first digit of the password 3 Press the Enter button to select the next digit Repeat for all four digits 4 If the password is correct the display will advance to the first menu SECURITY ADMIN LEVEL 0 0 0 0 Enter a user ...

Page 35: ...temperature display Note The next step may require a user password See Entering a user password on page 34 F 70 AUTO AUTO 2 Change the active setpoints 1 Press either the or button to change the active temperature setpoint Note A user password may be required after pushing the first button 2 Press the Enter button to save the value The display will advance to the next setpoint 3 Press either the o...

Page 36: ...utton under the heating cooling icon Note If a user password has previously been entered or if the AppStat has not been set up with a user password entering a password is not required 2 Press either the or button to select the heating cooling mode The mode may be one of the following Emergency Option Turns on the auxiliary heating in a heat pump unit Heat The system will only heat the space Cool T...

Page 37: ... Auto Sets the fan to run only when there is a call for heat or cooling The word AUTO will be placed under the fan icon On Sets a single speed fan will run continuously Low Med High Sets the speed at which 3 speed or modulating fans will run continuously 4 Press the Enter button to save the setting The display returns to the temperature display Fan icon Enter Cncl FAN ON AUTO 1 speed fan option En...

Page 38: ...rn the override on or off Override Off The controller uses the unoccupied setpoint as the active setpoint Override On the controller changes to the occupied setpoint which can then be temporarily changed 5 Press the Enter button to save the setting Note When the system is in the unoccupied mode changing the active setpoint will automatically place the system in the override mode F 65 AUTO AUTO Ent...

Page 39: ...tion Information about the equipment The sequence of operation for the equipment The building automation system plans for controllers that are part of a network Users may change the occupied heating and cooling setpoints without accessing the commissioning functions This procedure is covered in the topic User functions on page 31 Note The instructions for the AppStat commissioning functions cover ...

Page 40: ...until the display changes to the SECURITY USER LEVEL display Note If Password 2 has not previously been entered the display will change to the MAIN menu 2 Press either the or button to change the first digit of Password 2 3 Press the Enter button to select the next digit Repeat for all four digits The Enter button is the middle of the three buttons below the display Push together for commissioning...

Page 41: ...o all models of AppStat Those setpoints are marked as optional Procedure Steps Display 1 Starting display 1 Start at the temperature display 2 Enter Password 2 The display changes to the MAIN menu display F 70 AUTO AUTO SECURITY ADMIN LEVEL 0 0 0 0 2 Choose and set the setpoints 1 From the MAIN menu press either the or button to select SETPOINTS 2 Press Enter The SETPOINT menu opens 3 Choose and s...

Page 42: ...r heating setpoints The AppStat will always maintain this difference between setpoints STBY OFFSET optional A value used to calculate the standby setpoint The standby setpoint is calculated by adding or subtracting the offset value to or from the value of the occupied setpoint DEHUM SETPOINT optional Sets the setpoint for dehumidification Dehumidification starts when the relative humidity is above...

Page 43: ...work communication properties 1 From the MAIN menu press either the or button to select COMM 2 Press Enter The COMM menu opens 3 Choose and set the following properties l DEVICE ID This is the BACnet device instance The device instance must be within the range of 1 to 4 194 302 l MAC The MAC address must be in the range of 1 127 l BAUD Set to match other devices on the BACnet MS TP network The cho...

Page 44: ...ocedure Steps Display MAC 1 Done Enter Enter BAUD 76800 38400 19200 9600 Auto Done Enter Cncl Set BACnet communication properties continued Section 4 Commissioning functions KMC Controls Inc 44 Revision G ...

Page 45: ...splay 1 Start at the temperature display 2 Enter Password 2 The display changes to the MAIN menu display F 70 AUTO AUTO SECURITY ADMIN LEVEL 0 0 0 0 2 Select the SCHEDULE menu 1 From the MAIN menu press either the or button to select SCHEDULE 2 Press Enter The SCHEDULE menu opens 3 Choose SET CLOCK and then press Enter The SET Clock menu opens MAIN SETPOINT SCHEDULE SYSTEM COMM ADVANCED Back Enter...

Page 46: ... subtracted from the UTC received in a UTC Time Synchronization service request to calculate the correct local standard time DST ENABLE Set to TRUE to enable Daylight Saving Time and FALSE to use standard time year around DST AUTO When set to TRUE the AppStat automatically calculates the start and end dates from relative dates For example set DST START to the first Sunday in March instead of a cal...

Page 47: ...sword 2 which is described in the topic Enter the commissioning mode on page 40 To change the time and date see the procedure Set the time and date on page 45 Procedure Steps Display 1 Starting display 1 Start at the temperature display 2 Enter Password 2 The display changes to the MAIN menu display F 70 AUTO AUTO SECURITY ADMIN LEVEL 0 0 0 0 2 Select the SCHEDULE menu 1 From the MAIN menu press e...

Page 48: ...y Monday to Friday remain unchanged l INDIVIDUAL DAYS Sets the schedule for just the selected day of the week 2 Change the daily times and values in the schedule to set the occupancy mode to either ON or OFF l When finished with each pair push Enter or Done l When finished with the schedule push Exit to return to the SCHEDULE menu SCHEDULE SET CLOCK SETPOINT HOLD ENTIRE WEEK WEEKDAYS WEEKEND INDV ...

Page 49: ...dule will override the values of the weekly schedule l DATE RANGE Enter a range of dates on which the values and times listed in the holiday schedule will override the values of the weekly schedule l WEEK N DAY A day of the week and month on which the values and times listed in the holiday schedule will override the values of the weekly schedule HOLIDAYS HOL1 HOL2 HOL3 HOL4 HOL5 HOL6 HOL7 Del Ente...

Page 50: ...ly HT VLV ACTION Four pipe only VLV ACTION Two pipe only FAN MAXIMUM Modulating fans only FAN MINIMUM Modulating fans only FAN SPEEDS Three speed fans only AUX HEAT Two pipe only MAIN SETPOINT SCHEDULE SYSTEM COMM ADVANCED Back Enter Exit SYSTEM LOCAL OVRD TIME FAN OFF DELAY OCCUPIED FAN CL VALVE ACTION HT VLV ACTION FAN MAXIMUM FAN MINIMUM Back Enter Exit SYSTEM LOCAL OVRD TIME FAN OFF DELAY OCCU...

Page 51: ...ve actions from the SYSTEM menu Not all choices apply to every application CL VALVE ACTION Four pipe only HT VLV ACTION Four pipe only VLV ACTION Two pipe only Valve action selections are the same for all three types of valves NORMAL OPEN The valve changes from fully open to fully closed as the AppStat varies the valve output from 0 to 10 volts NORMAL CLOSED The valve changes from fully closed to ...

Page 52: ...set halfway between the LOW and HIGH settings Back Enter Cncl FAN MINIMUM 35 utoz Back Enter Cncl FAN MAXIMUM 100 utoz 8 Set fan speeds for three speed fans Select FAN SPEEDS from the SYSTEM menu to designate the number of speeds at which the installed fan will run Back Enter Cncl FAN SPEEDS THREE SPEEDS TWO SPEEDS SINGLE SPEED 9 Enable auxiliary heat Choose AUX HEAT from the SYSTEM menu to enable...

Page 53: ...UPIED FAN MIN OFF TIME STAGE DELAY ECON ENABLE MIN ECON DAMPER ECON ENABLE TEM MIN DAT HEATING FAN MAIN SETPOINT SCHEDULE SYSTEM COMM ADVANCED Back Enter Exit Back Enter Exit SYSTEM LOCAL OVRD TIME FAN OFF DELAY OCCUPIED FAN MIN OFF TIME STAGE DELAY ECON ENABLE MIN ECON DAMPER SYSTEM STAGE DELAY ECON ENABLE MIN ECON DAMPER ECON ENABLE TEM MIN DAT DEHUM ENABLE HEATING FAN Back Enter Exit 3 Set the ...

Page 54: ...cupied the fan will run only when there is a call for heating or cooling Back Enter Cncl OCCUPIED FAN ON OFF 6 Set up staged cooling and heating To set up staged cooling and heating do the following 1 From the SYSTEM menu choose MIN OFF TIME to enter the time a stage must remain turned off before it can be turned on again 2 From the SYSTEM menu choose STAGE DELAY to enter the time the first stage ...

Page 55: ...Enter Cncl ECON ENABLE ENABLED DISABLED Back Enter Cncl MIN ECON DAMPER 10 Back Enter Cncl ECON ENABLE TEM 60 F Back Enter Cncl MIN DAT 55 F 8 Enable dehumidification Optional feature From the SYSTEM menu choose DEHUM ENABLE to enable or disable dehumidification Dehumidification is only available on models with a humidity sensor Back Enter Cncl DEHUM ENABLE ENABLE DISABLE 9 Set heating fan control...

Page 56: ... to select SYSTEM 2 Press Enter The SYSTEM menu opens 3 Choose any of the following items LOCAL OVRD TIME FAN OFF DELAY OCCUPIED FAN MIN OFF TIME STAGE DELAY ECON ENABLE optional MIN ECON DAMPER optional ECON ENABLE TEM optional MIN DAT optional REV VLV PLRTY AUX HEAT optional AUX HT LOCKOUT optional COMP LOCK TEMP DEHUM ENABLE optional MAIN SETPOINT SCHEDULE SYSTEM COMM ADVANCED Back Enter Exit B...

Page 57: ...to choose the following When ON the fan will run continuously when the AppStat schedule is ON occupied When the AppStat schedule is OFF Unoccupied the fan will run only when there is a call for heating or cooling Back Enter Cncl OCCUPIED FAN ON OFF 6 Set up staged cooling and heating To set up staged cooling and heating do the following 1 From the SYSTEM menu choose MIN OFF TIME to enter the time ...

Page 58: ...D Back Enter Cncl MIN ECON DAMPER 10 Back Enter Cncl ECON ENABLE TEM 60 F Back Enter Cncl MIN DAT 55 F 8 Set the reversing valve polarity From the SYSTEM menu choose REV VLV PLRTY Select one of the polarity settings Active Heating The O B output terminal is active on a call for heating Active Cooling The O B output terminal is active on a call for cooling Del Enter Cncl RV VLV PLRTY ACTIVE HEATING...

Page 59: ... set the minimum outside air temperature for compressor operation Compressors will not operate below this temperature Del Enter Cncl COMP LOCK TEMP 25 F 12 Enable dehumidification Optional feature From the SYSTEM menu choose DEHUM ENABLE to enable or disable dehumidification Dehumidification is only available on models with a humidity sensor and auxiliary heat is enabled Back Enter Cncl DEHUM ENAB...

Page 60: ...y 13 Starting display 1 Start at the temperature display 2 Enter Password 2 The display changes to the MAIN menu display F 70 AUTO AUTO 14 Choose the ADVANCED menu 1 From the MAIN menu press either the or button to select ADVANCED 2 Press Enter The ADVANCED menu opens 3 Choose any of the following functions RESTORE APP LOOPS PASSWORDS CALIBRATION DISPLAY KEY LOCKOUT MAIN SETPOINT SCHEDULE SYSTEM C...

Page 61: ...r units of measure Note Choosing an application will reset the AppStat RESTORE APP 2P FCU METRIC 4P FCU METRIC 2P FCU ENGLISH 4P FCU ENGLISH Back Enter Cncl RESTORE APP RTU METRIC RTU ENGLISH Back Enter Cncl RESTORE APP HPU METRIC HPU ENGLISH Back Enter Cncl 16 Adjust the PID loops Choose LOOPS from the ADVANCED menu to adjust the values for the cooling or heating PID loops Only the proportional a...

Page 62: ... 3 When the Enter button is pressed for the last digit the new password is saved and the display advances PASSWORDS PASSWORD1 PASSWORD2 Back Enter Exit PASSWORD1 0 0 0 0 Del Enter Cncl 18 Calibrate the inputs Choose CALIBRATION from the ADVANCED menu to calibrated an input The AppStat includes two calibration entries one for the internal temperature sensor and one for the optional remote temperatu...

Page 63: ...cted blanking option DISPLAY BLANKING DIM LEVEL Back Enter Exit BLANKING ANALOG CLOCK BACKLIGHT OFF NONE Del Enter Cncl DIM LEVEL 50 Del Enter Cncl 20 User lockout buttons Choose KEY LOCKOUT from the ADVANCED menu to limit accessibility to users with Password 1 the user password MODE SETPOINT Users with Password 1 cannot change any value or mode MODE Users with Password 1 cannot change the heating...

Page 64: ...Section 4 Commissioning functions KMC Controls Inc 64 Revision G ...

Page 65: ... Fan status on page 68 Display blanking and backlight on page 69 Temperature sensing inputs on page 69 PID control loops on page 70 Valve operation for fan coil units on page 70 Electric heat for fan coil units on page 72 Fan operation for fan coil units on page 72 Modulating cooling and heating for Roof Top Units on page 73 Staged heating and cooling for for roof top and heat pump units on page 7...

Page 66: ...rd 1 can enter an active setpoint from the display This change is for a limited time or until the next time the space status changes from either unoccupied or standby to occupied Occupied setpoint A temperature setpoint entered by the controls technician during controller setup and system commissioning This is the setpoint used when the system is occupied which is usually controlled by the schedul...

Page 67: ...ed on the occupancy and standby states See the topic Room temperature setpoints on page 66 for the sequence on determining setpoints The occupancy and standby states can also be commanded by another BACnet device or an operator workstation connected to the building automation network See the topic BACnet objects on page 114 for details on BACnet value object configuration Occupied For controllers ...

Page 68: ...fan coil units configured for two pipe operation The AppStat can run the dehumidification sequence only if the heating and cooling modes are set to automatic The dehumidification sequence can then start if the space humidity rises above the value of Dehumidification Setpoint Dehumidification stops when the space humidity drops to a value below the Dehumidification Setpoint minus the value of Dehum...

Page 69: ... sensing All models of AppStat include an internal temperature sensor for measuring space temperature For remote temperature sensing an external 10 000 ohm Type II thermistor sensor can be connected to terminals RS If the AppStat detects that a remote sensor is connected the internal sensor is not used for determining space temperature See the topics Input objects on page 114 and Value objects on ...

Page 70: ...ce between the setpoint and space temperature the error becomes smaller In a simple example if the output of the PID loop that is controlling a modulating valve is 50 the valve would be opened half way if the output of the loop is 100 the valve position is fully open The AppStat uses up to four PID loops The heating and cooling PID loops are implemented in all models The discharge air loop control...

Page 71: ... evaluation For two pipe fan coil units the AppStat uses the water supply temperature sensor input WST to determine if chilled or hot water is being supplied to the unit The water type is determined by comparing the value of the water temperature sensor input to the room temperature The AppStat programming then determines that the water temperature is one of the following Chilled the water tempera...

Page 72: ...ser with Password 2 See the topic Set fan coil unit system options on page 50 One two and three speed fans For one two and three speed fans the AppStat controls the fan speed with terminals FAN L FAN M and FAN H Single speed fans use terminal FAN L only Two speed fans are controlled with terminals FAN L and FAN H Thee speed fans use terminals FAN L FAN M and FAN H The fan output terminals are ener...

Page 73: ...g or heating Cooling Modulating cooling does not start until the cooling loop reaches 100 Once the loop reaches 100 the analog cooling output modulates over 10 volts DC as the cooling loop changes from 0 to 100 When the cooling loop returns to 0 cooling stops until the loop again reaches 100 If the economizer is enabled cooling will not start modulating until the economizer damper is fully open He...

Page 74: ... below 50 This first stage is turned off when the cooling loop drops below 5 Staged heating As the demand for heating increases the AppStat starts the first stage of heating when the heating PID loop rises above 95 The second stage of heating is turned on when the heating loop rises above 99 and the first stage has been turned on for period set by STAGE DELAY As the demand for heating is satisfied...

Page 75: ...emperature decreases below 55 F the Outside Air Damper returns to the minimum damper position Heat pump unit specific functions The fan and staging sequences for heat pump units are similar to the roof top unit fan and staging sequences See the topics Staged heating and cooling for for roof top and heat pump units on page 74 and Fan control for roof top and heat pump units on page 74 Reversing val...

Page 76: ...an only be turned on from the user interface When emergency heat is turned on the AUX E output is used to maintain the active heating setpoint and both compressor outputs are locked out Section 5 Sequences of operation KMC Controls Inc 76 Revision G ...

Page 77: ...d for a specific application The following topics are for control technicians and engineers that will plan and install AppStat controllers for the following applications Fan Coil Unit applications on page 78 Roof Top Unit applications on page 98 Heat Pump Unit applications on page 108 Installation Operation and Application Guide for AppStat Revision G 77 ...

Page 78: ...rature sensor RS is optional Valves are 24 Volt AC Fan outputs are for 24 volt AC pilot duty inputs For additional details on connecting sensors see Connecting inputs on page 20 For additional detail on connecting the fan and valves see Connecting outputs on page 24 KMC Part No Description Function CSE 1102 Differential Pressure Switch Barb Fittings Fan status switch STE 6011W10 Temperature sensor...

Page 79: ... 24 VAC Class 2 STE 6011W10 or equivalent optional FST N C Fan Status CSE 1102 Controls transformer DAT MS TP B A RS WST GND DAT COM FAN L FAN M FAN H R BO4 BO5 GND AO6 AO8 AO7 24VAC Installation Operation and Application Guide for AppStat Section 6 Application drawings Revision G 79 ...

Page 80: ...volt AC pilot duty inputs For additional details on connecting sensors see Connecting inputs on page 20 For additional detail on connecting the fan and valves see Connecting outputs on page 24 KMC Part No Description Function CSE 1102 Differential Pressure Switch Barb Fittings Fan status switch STE 6011W10 Temperature sensor 10 kΩ Type II Remote space temperature STE 1405 Duct temperature sensor 1...

Page 81: ...T GND DAT COM FAN L FAN M FAN H R BO4 BO5 GND AO6 AO8 AO7 24VAC H M L FAN STE 1405 24 VAC Class 2 0 10 VDC 0 10 VDC FST N C Fan Status CSE 1102 Controls transformer DAT STE 6011W10 or equivalent optional Installation Operation and Application Guide for AppStat Section 6 Application drawings Revision G 81 ...

Page 82: ...ut is 0 10 volts DC For additional details on connecting sensors see Connecting inputs on page 20 For additional detail on connecting the fan and valves see Connecting outputs on page 24 KMC Part No Description Function CSE 1102 Differential Pressure Switch Barb Fittings Fan status switch STE 6011W10 Temperature sensor 10 kΩ Type II Remote space temperature STE 1405 Duct temperature sensor 10 kΩ T...

Page 83: ...C Class 2 FST Controls transformer N C Fan Status CSE 1102 STE 1405 STE 6011W10 or equivalent optional DAT SPD SRT MS TP B A RS WST GND DAT COM FAN L FAN M FAN H R BO4 BO5 GND AO6 AO8 AO7 24VAC Installation Operation and Application Guide for AppStat Section 6 Application drawings Revision G 83 ...

Page 84: ... details on connecting sensors see Connecting inputs on page 20 For additional detail on connecting the fan and valves see Connecting outputs on page 24 KMC Part No Description Function CSE 1102 Differential Pressure Switch Barb Fittings Fan status switch STE 6011W10 Temperature sensor 10 kΩ Type II Remote space temperature STE 1405 Duct temperature sensor 10 kΩ Type III Discharge air temperature ...

Page 85: ... GND DAT COM FAN L FAN M FAN H R BO4 BO5 GND AO6 AO8 AO7 24VAC 24 VAC Class 2 0 10 VDC 0 10 VDC FAN FST Controls transformer N C Fan Status CSE 1102 STE 1405 DAT STE 6011W10 or equivalent optional SPD SRT Installation Operation and Application Guide for AppStat Section 6 Application drawings Revision G 85 ...

Page 86: ...ng sensors see Connecting inputs on page 20 For additional detail on connecting the fan and valves see Connecting outputs on page 24 KMC Part No Description Function CSE 1102 Differential Pressure Switch Barb Fittings Fan status switch STE 1405 Duct temperature sensor 10 kΩ Type III Discharge air temperature STE 1455 Strap on water temperature sensor 10 kΩ Type III Water temperature sensor STE 601...

Page 87: ...C Class 2 FST N C Fan Status CSE 1102 STE 1455 Controls transformer STE 1405 DAT WST STE 6011W10 or equivalent optional MS TP B A RS WST GND DAT COM FAN L FAN M FAN H R BO4 BO5 GND AO6 AO8 AO7 24VAC Installation Operation and Application Guide for AppStat Section 6 Application drawings Revision G 87 ...

Page 88: ...etails on connecting sensors see Connecting inputs on page 20 For additional detail on connecting the fan and valves see Connecting outputs on page 24 KMC Part No Description Function CSE 1102 Differential Pressure Switch Barb Fittings Fan status switch STE 1405 Duct temperature sensor 10 kΩ Type III Discharge air temperature STE 1455 Strap on water temperature sensor 10 kΩ Type III Water temperat...

Page 89: ...lass 2 0 10 VDC FST N C Fan Status CSE 1102 Controls transformer STE 1455 STE 1405 DAT WST STE 6011W10 or equivalent optional MS TP B A RS WST GND DAT COM FAN L FAN M FAN H R BO4 BO5 GND AO6 AO8 AO7 24VAC Installation Operation and Application Guide for AppStat Section 6 Application drawings Revision G 89 ...

Page 90: ...al details on connecting sensors see Connecting inputs on page 20 For additional detail on connecting the fan and valves see Connecting outputs on page 24 KMC Part No Description Function CSE 1102 Differential Pressure Switch Barb Fittings Fan status switch STE 1405 Duct temperature sensor 10 kΩ Type III Discharge air temperature STE 1455 Strap on water temperature sensor 10 kΩ Type III Water temp...

Page 91: ...2 FST N C Fan Status CSE 1102 Controls transformer STE 1455 STE 1405 DAT WST STE 6011W10 or equivalent optional SPD SRT MS TP B A RS WST GND DAT COM FAN L FAN M FAN H R BO4 BO5 GND AO6 AO8 AO7 24VAC Installation Operation and Application Guide for AppStat Section 6 Application drawings Revision G 91 ...

Page 92: ...onal details on connecting sensors see Connecting inputs on page 20 For additional detail on connecting the fan and valves see Connecting outputs on page 24 KMC Part No Description Function CSE 1102 Differential Pressure Switch Barb Fittings Fan status switch STE 1405 Duct temperature sensor 10 kΩ Type III Discharge air temperature STE 1455 Strap on water temperature sensor 10 kΩ Type III Water te...

Page 93: ...0 10 VDC FST N C Fan Status CSE 1102 Controls transformer STE 1455 STE 1405 DAT WST STE 6011W10 or equivalent optional SPD SRT MS TP B A RS WST GND DAT COM FAN L FAN M FAN H R BO4 BO5 GND AO6 AO8 AO7 24VAC Installation Operation and Application Guide for AppStat Section 6 Application drawings Revision G 93 ...

Page 94: ...dditional details on connecting sensors see Connecting inputs on page 20 For additional detail on connecting the fan and valves see Connecting outputs on page 24 KMC Part No Description Function CSE 1102 Differential Pressure Switch Barb Fittings Fan status switch STE 1405 Duct temperature sensor 10 kΩ Type III Discharge air temperature STE 1455 Strap on water temperature sensor 10 kΩ Type III Wat...

Page 95: ...Class 2 0 10 VDC FST N C Fan Status CSE 1102 Controls transformer STE 1455 STE 1405 DAT WST STE 6011W10 or equivalent optional 24 VAC Relay MS TP B A RS WST GND DAT COM FAN L FAN M FAN H R BO4 BO5 GND AO6 AO8 AO7 24VAC Installation Operation and Application Guide for AppStat Section 6 Application drawings Revision G 95 ...

Page 96: ...n speed input is 0 10 volts DC For additional details on connecting sensors see Connecting inputs on page 20 For additional detail on connecting the fan and valves see Connecting outputs on page 24 KMC Part No Description Function CSE 1102 Differential Pressure Switch Barb Fittings Fan status switch STE 1405 Duct temperature sensor 10 kΩ Type III Discharge air temperature STE 1455 Strap on water t...

Page 97: ... 0 10 VDC FST N C Fan Status CSE 1102 Controls transformer STE 1455 STE 1405 DAT WST STE 6011W10 or equivalent optional 24 VAC Relay SPD SRT MS TP B A RS WST GND DAT COM FAN L FAN M FAN H R BO4 BO5 GND AO6 AO8 AO7 24VAC Installation Operation and Application Guide for AppStat Section 6 Application drawings Revision G 97 ...

Page 98: ... connection W2 For single stage cooling delete connection Y2 Connect outputs to 24 volt AC pilot duty inputs For additional details on connecting sensors see Connecting inputs on page 20 For additional detail on connecting the fan and valves see Connecting outputs on page 24 KMC Part No Description Function CSE 1102 Differential Pressure Switch Barb Fittings Fan status switch STE 1405 Duct tempera...

Page 99: ... ECON G Y1 Y2 RC W1 W2 RH AO6 AO7 COM 24VAC FAN 24 VAC Class 2 STE 1451 FST W2 W1 G Y2 Y1 C R N C Fan Status CSE 1102 STE 1405 STE 6011W10 or equivalent optional DAT OAT Controls transformer GAS GAS DX DX Installation Operation and Application Guide for AppStat Section 6 Application drawings Revision G 99 ...

Page 100: ...ts to 24 volt AC pilot duty inputs For additional details on connecting sensors see Connecting inputs on page 20 For additional detail on connecting the fan and valves see Connecting outputs on page 24 KMC Part No Description Function CSE 1102 Differential Pressure Switch Barb Fittings Fan status switch STE 1405 Duct temperature sensor 10 kΩ Type III Discharge air temperature STE 1451 Outdoor air ...

Page 101: ...DAT ECON G Y1 Y2 RC W1 W2 RH AO6 AO7 COM 24VAC FAN 24 VAC Class 2 FST GAS GAS DX DX W2 W1 G Y2 Y1 C R 0 10 VDC STE 1451 N C Fan Status CSE 1102 STE 1405 STE 6011W10 or equivalent optional DAT OAT Controls transformer Installation Operation and Application Guide for AppStat Section 6 Application drawings Revision G 101 ...

Page 102: ...ditional details on connecting sensors see Connecting inputs on page 20 For additional details on connecting the fan and valves see Connecting outputs on page 24 KMC Part No Description Function CSE 1102 Differential Pressure Switch Barb Fittings Fan status switch STE 1405 Duct temperature sensor 10 kΩ Type III Discharge air temperature STE 1451 Outdoor air temperature sensor 10 kΩ Type III Outdoo...

Page 103: ... GND DAT ECON G Y1 Y2 RC W1 W2 RH AO6 AO7 COM 24VAC FAN 24 VAC Class 2 0 10 VDC FST 0 10 VDC STE 1451 N C Fan Status CSE 1102 STE 1405 STE 6011W10 or equivalent optional DAT OAT G C R 0 10 VDC Controls transformer Installation Operation and Application Guide for AppStat Section 6 Application drawings Revision G 103 ...

Page 104: ... stage heating do not connect W2 For additional details on connecting sensors see Connecting inputs on page 20 For additional details on connecting the fan and valves see Connecting outputs on page 24 KMC Part No Description Function CSE 1102 Differential Pressure Switch Barb Fittings Fan status switch STE 1405 Duct temperature sensor 10 kΩ Type III Discharge air temperature STE 1451 Outdoor air t...

Page 105: ...ND DAT ECON G Y1 Y2 RC W1 W2 RH AO6 AO7 COM 24VAC GAS FAN 24 VAC Class 2 FST GAS W2 W1 G C R 0 10 VDC 0 10 VDC STE 1451 N C Fan Status CSE 1102 STE 1405 STE 6011W10 or equivalent optional DAT OAT Controls transformer Installation Operation and Application Guide for AppStat Section 6 Application drawings Revision G 105 ...

Page 106: ...oling do not connect Y2 additional details on connecting sensors see Connecting inputs on page 20 For additional details on connecting the fan and valves see Connecting outputs on page 24 KMC Part No Description Function CSE 1102 Differential Pressure Switch Barb Fittings Fan status switch STE 1405 Duct temperature sensor 10 kΩ Type III Discharge air temperature STE 1451 Outdoor air temperature se...

Page 107: ...ND DAT ECON G Y1 Y2 RC W1 W2 RH AO6 AO7 COM 24VAC FAN 24 VAC Class 2 FST Y2 Y1 G C R 0 10 VDC STE 1451 N C Fan Status CSE 1102 STE 1405 STE 6011W10 or equivalent optional DAT OAT Controls transformer 0 10 VDC DX DX Installation Operation and Application Guide for AppStat Section 6 Application drawings Revision G 107 ...

Page 108: ...he remote temperature sensor RS is optional For single compressor installations delete the Y2 connection If auxiliary heat is not required delete the AUX E connection Connect outputs only to 24 volt AC pilot duty inputs For additional details on connecting sensors see Connecting inputs on page 20 KMC Part No Description Function CSE 1102 Differential Pressure Switch Barb Fittings Fan status switch...

Page 109: ...B AUX E AO6 AO7 COM 24VAC RH 24 VAC Class 2 FAN AUX O B G Y2 Y1 C R FST COMPRESSOR COMPRESSOR N C Fan Status CSE 1102 STE 1405 DAT Controls transformer STE 6011W10 or equivalent optional STE 1451 OAT Installation Operation and Application Guide for AppStat Section 6 Application drawings Revision G 109 ...

Page 110: ...he Y2 connection If auxiliary heat is not required delete the AUX E connection Connect outputs only to 24 volt AC pilot duty inputs Economizer ECON input is 0 10 volts DC For additional details on connecting sensors see Connecting inputs on page 20 KMC Part No Description Function CSE 1102 Differential Pressure Switch Barb Fittings Fan status switch STE 1405 Duct temperature sensor 10 kΩ Type III ...

Page 111: ...RC O B AUX E AO6 AO7 COM 24VAC RH 24 VAC Class 2 FAN AUX O B G Y2 Y1 C R FST 0 10 VDC COMPRESSOR COMPRESSOR N C Fan Status CSE 1102 STE 1405 DAT Controls transformer STE 6011W10 or equivalent optional STE 1451 OAT Installation Operation and Application Guide for AppStat Section 6 Application drawings Revision G 111 ...

Page 112: ...Section 6 Application drawings KMC Controls Inc 112 Revision G ...

Page 113: ... installing and setting up an AppStat that is connected to a network In addition to the information in this section you will also need the following information Detailed plans and drawings for the building automation system Information about the facility LAN including routers switches and network firewalls Application Note AN0404A Planning BACnet Networks This document is available from the KMC Co...

Page 114: ... inputs 1 3 are available for external connections For input wiring details see Connecting inputs on page 20 For application specific wiring details see the section Application drawings on page 77 Note Not all input objects are present in every model Input Name Description Device type Models AI1 REMOTE_SENSOR Remote Room Sensor KMC10K_Type_II All AI2 WATER_TEMP Water Temperature KMC10K_Type_III FC...

Page 115: ...Fan Start Stop Unknown BO2 MEDIUM Fan Medium Speed Unknown BO3 HIGH Fan High Speed Unknown BO4 VALVE Valve Unknown BO5 AUX HEAT Auxiliary Heat Unknown Table 7 2 Fan coil unit two pipe Output Name Description Device type AO6 COOLING_VLV Analog Cooling Output 0 100 0 10 V AO7 HEATING_VLV Analog Heating Output 0 100 0 10 V AO8 FAN_SPEED_AO Fan Speed Control 0 100 0 10V BO1 LOW Fan Low Speed Unknown B...

Page 116: ...e 2 Unknown BO4 HEAT_STAGE_1 Heat Stage 1 Unknown BO5 HEAT_STAGE_2 Heat Stage 2 Unknown Table 7 4 Roof top units Output Name Description Device type AO8 ECON_DAMPER Economizer Output 0 100 0 10 V BO1 FAN Fan Start Stop Unknown BO2 COMPRESSOR_1 Stage 1 Compressor Unknown BO3 COMPRESSOR_2 Stage 2 Compressor Unknown BO4 REVERSING _VALVE Reversing Valve Unknown BO5 AUXILIARY_HEAT Auxiliary Heat Unknow...

Page 117: ... Heating Setpoint AV5 OCC_CL_STPT Occupied Cooling Setpoint AV6 OCC_HT_SPT Occupied Heating Setpoint AV7 UNOCC_CL_STPT Unoccupied Cooling Setpoint AV8 UNOCC_HT_STPT Unoccupied Heating Setpoint AV9 MIN_CL_STPT Minimum Cooling Setpoint AV10 MAX_HT_STPT Maximum Heating Setpoint AV11 MIN_STPT_DIFF Minimum Setpoint Differential AV12 STBY_OFFSET Standby Offset AV22 DEHUM_STPT Dehumidification Setpoint A...

Page 118: ... object Name Description AV13 DAT_RESET Discharge Air Reset STPT AV14 MIN DAT Min Discharge Air Temp AV15 MIN_ECON_DAMPER Minimum Econ Damper AV16 ECON_ENABLE_ TEMP Economizer Enable Temperature AV17 CMP_LOCKOUT Compressor Lockout Temperature AV18 AUX_HT_LOCKOUT OAT AUX Heat Lockout Table 7 8 Analog value objects Economizer and HPU setpoints Operating states and modes The binary and multistate val...

Page 119: ...reference object binary value object OCC_SCHEDULE The exception schedule within the schedule object is represented in the user interface as the holiday schedules Object Name Description Object reference 1 SCHED_1 Schedule 1 BV5 OCC_SCHEDULE Table 7 11 Schedule object Loop objects The BACnet PID loops are used for valve and fan modulation staging economizer operation and reheat during dehumidificat...

Page 120: ...LOOP1 CL LOOP Cooling Loop LOOP2 HT LOOP Heating Loop LOOP3 DAT LOOP Discharge Air Temp Loop LOOP4 REHEAT Reheat for Dehumidification Table 7 12 PID control loops Section 7 System integration KMC Controls Inc 120 Revision G ...

Page 121: ...ed pair shielded cable with capacitance of no more than 51 picofarads per foot for all network wiring Belden cable model 82760 meets the cable requirements Connect the A terminal in parallel with all other terminals Connect the B terminal in parallel with all other terminals Connect the shield to an earth ground at one end only Use a KMD 5575 repeater between every 32 MS TP devices or if the total...

Page 122: ...ine EOL termination installed for proper network operation See Location for end of line termination on page 122 Set the end of line termination to On using the EOL switches Illustration 7 2 Location for end of line termination EOL On EOL On Off Off Location of EOL switch on page 123 shows the position of the EOL switches in the AppStat controller Section 7 System integration KMC Controls Inc 122 R...

Page 123: ...Illustration 7 3 Location of EOL switch EOL switches Installation Operation and Application Guide for AppStat Section 7 System integration Revision G 123 ...

Page 124: ...Section 7 System integration KMC Controls Inc 124 Revision G ...

Page 125: ...net specification 9 set up 43 D daily schedule 47 date setting 45 Daylight Saving Time 45 dehumidificaion sequence 68 device instance 43 dimensions 11 dimming the display 69 discharge air temperature sensor wiring 21 sequence of operation 69 display blanking 69 clock 69 dimensions 8 dimming 69 icons 31 parts of 31 E economizer operation 75 setpoint objects 117 wiring 28 electric heat fan coil unit...

Page 126: ...state value objects 117 N network baud 43 communications 43 device instance 43 Mac 43 specifications 9 termination 121 wiring 121 O occupancy schedule 47 occupied setpoints 41 operation 31 outputs 24 BACnet objects 115 economizer 28 modulating fan 25 modulating valves 27 on off valves 26 three speed fan 24 P passwords Password 1 35 Password 2 40 setting and changing 60 user 34 35 PID loops adjusti...

Page 127: ...s cooling 35 differential 41 heating 35 limits 66 minimum and maximum 41 occupied 41 sequence 66 temperature 66 unoccupied 41 softkey bar 31 space temperature sensing calibrate 60 remote sensor wiring 20 sequence of operation 69 specifications 8 dimensions 11 environmental limits 10 humidity accuracy 9 inputs 8 motion sensing 11 MS TP network 9 outputs 8 power 10 temperature accuracy 9 user interf...

Page 128: ...power 28 roof top unit 98 rough in 18 Index KMC Controls Inc 128 Revision G ...

Search results

Summary of Contents for BAC-4000 series

Reviews:

Related manuals for BAC-4000 series

Brands by name

Popular brands

KMC Controls BAC-4000 series, Installation, Operation, And Application Manual

Search results

Summary of Contents for BAC-4000 series

Reviews:

Related manuals for BAC-4000 series

Brands by name

Popular brands