ABB CBV-2U4-3T User Manual Download Page 16

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CBV-2U4-3T(-N) |

Installation Overview

Subject to change without notice

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AN0

Wiring the Digital and Analog Outputs

Both

CBV-2U4-3T

and

CBV-2U4-3T-N

come with 3 digital outputs and 2

UniPuts™

(normally configured as

analog outputs) for controlling a wide variety of possible elements of the VAV box. In addition the

CBV-2U4-

3T-N

comes with 2 digital outputs for damper control (accessed by removing the top cover), and the

CBV-

2U4-3T

includes integrated damper control. It is possible to control single speed and variable speed fans

(both parallel and series), electric heat (optional pulse width modulation), proportional heating valves, and

tri-state heating valves depending on the application.

•

DO-11

can be configured for controlling first stage electric heat (on-off or pulse width modulation

optional), or to open a tri-state heating valve.

•

DO-12

can be configured for controlling second stage electric heat (on-off or pulse width modulation

optional), or to close a tri-state heating valve.

•

DO-13

can be configured for controlling third stage (on-off or pulse width modulation optional), or to

control a single speed fan (series or parallel).

Note:

It is also possible to define

DO-13

as a start command for a variable speed fan (series or parallel).

Both

AO-15

and

DO-13

must be configured as either series or parallel for this feature.

•

AO-14

can be configured for controlling any first stage modulating heating valves,

SCR

(

Silicone

Controlled Rectifier

), or E

(

Electronic Modulating Control

) type controls depending on the heating

elements of the VAV box.

•

AO-15

can be configured for controlling any second stage modulating heating valves, SCR (

Silicone

Controlled Rectifier

), or

EMC

(

Electronic Modulating Control

) type controls depending on the heating

elements of the VAV box. This output can also be configured for variable speed fan control (series or

parallel).

Note:

AO-14

and

AO-15

are preconfigured as a 0

…

10 V dc direct acting output. During configuration it is

possible to configure either output or both outputs for reverse acting or 10

…

0 V dc. Either or both

of these outputs can also be configured for 2

…

10 V dc

or 10

…

2 V dc. In

CBV-2U4-3T-N

controllers

the

s can now be configured for reverse acting.

IO POINTS

DESCRIPTION

DO-09

Damper Open/Close CBV-2U4-3T-N ONLY

DO-10

Damper Close/Open CBV-2U4-3T-N ONLY

DO-11

Stage Electric Heat (optional PWM) or Tri-State Heat Valve Open

DO-12

Stage Electric Heat (optional PWM) or Tri-State Heat Valve Closed

DO-13

Stage Electric Heat (optional PWM) or Fan Command (Series or Parallel)

AO-14

Stage Modulating Heat Control

AO-15

Stage Modulating Heat Control or Variable Fan Speed Control (Series or

Parallel)

Summary of Contents for CBV-2U4-3T

Page 1: ... USER GUIDE MAN0139 rev 14 CBV 2U4 3T N ...

Page 2: ... that represents File paths Code snippets or text file configuration settings is presented in fixed width font with a grey background and border For example config_file c CYLON settings config txt Parameter values Text that represents values to be entered into UI fields or displayed in dialogs is represented in fixed width font with a shaded background For example 10 C Product Names Text that repr...

Page 3: ... SEQUENCES CBV 2U4 3T N Control sequences 31 VAV Cooling only No Fan 31 Temperature Control 31 Input Output Points 31 VAV Cooling only Single Speed Fan 32 Temperature Control 32 Series Single Speed Fan 32 Input Output Points 32 VAV Cooling only Variable Speed Fan 33 Temperature Control 33 Series Variable Speed Fan 33 Input Output Points 33 VAV One to Three Stage Electric Reheat No Fan 34 Temperatu...

Page 4: ...lone operation 47 Temperature Control 48 Control Modes 48 Cooling and Heating Offsets 48 Zone Temperature Setpoints 48 Setpoint Modifiers 49 ZATContrlModeEnumeration A190 RO 49 Zone Temperature Alarms 49 Primary Air Damper Control 50 Primary Airflow 50 Primary Air Setpoint Management 50 Test and Balance 53 Heating Control 55 Terminal Unit Heat 55 Baseboard Heat 55 Heat Order 56 Digital Output Dire...

Page 6: ...owever it is possible to load a custom strategy or to modify the preloaded strategy to meet any application specific needs PHYSICAL SPECIFICATIONS Size excluding terminal plugs 8 3 x 5 12 x 2 36 210 x 130 x 60 mm Enclosure Injection molded ABS Mounting DIN rail Airflow Sensor Connection Use rubber hose suitable for a 0 2 5 1 mm O D nozzle ENVIRONMENTAL SPECIFICATIONS Ambient Temperature 32 122 F 0...

Page 7: ...2 F 0 C 50 C ambient UNPACKING THE CBV 2U4 3T N The CBV 2U4 3T N is shipped in its own box Multiple CBV 2U4 3T N boxes may be packaged together in a larger box Upon receiving the CBV 2U4 3T N controller shipment immediately open and inspect the contents Check outside of the box for any physical damage Contact the shipper immediately to report any shipping related damage to the product ABB is not r...

Page 8: ... to change without notice WWW CYLON COM 8 MAN0139 rev 14 Controller Dimensions and Clearances The image below shows the mounting dimensions of the controller Be sure to choose a location for the controller that allows the documented clearance for installation and servicing ...

Page 9: ...ng Mounting controller to VAV box Use the following steps for mounting the CBV 2U4 3T N on the VAV box 1 The controller is designed for two point mounting with one point being the damper shaft Attach the CBV 2U4 3T N to the shaft of the VAV damper by slipping the damper shaft through the round hole containing the U mounting bracket Note Do NOT tighten it to the shaft at this time 2 The controller ...

Page 10: ... stop screw so that the actuator will no longer be able to rotate beyond the point where range stop was set Wiring the CBV 2U4 3T N Once the box type has been determined users can then wire the CBV 2U4 3T N for the network the room sensors and the elements of the VAV box fan heating coils valve and so forth This section will go over the various wiring considerations for the CBV 2U4 3T N Connecting...

Page 11: ...s can switch the Fieldbus Terminator to on This will effectively terminate the network The shield or drain wire must be carried through the entire network If the RS 485 network is wired toa Target thenthe shield will be grounded at the Target If it is wired toa router the shield must be grounded at one point on the network as shown below Network level Controller or Router CBV 2U4 3T N Network Segm...

Page 12: ... fine tune the set point adjusts or to change it to support a 10K POT by changing analog setpoints SliderValAt_xx A385 A389 e g SliderValAt_0 R W to change the resistance table See Appendix List of CBV 2U4 3T N points on page 61 for details on changing these values U I 3 is a dedicated input that has been configured to read a thermistor In the pre loaded strategy this input is used for a supply ai...

Page 13: ...ccupancy in a space using a PIR relay or Spare Digital Input but to wire UI 4 for a digital input you will need to put a 10 V DC power supply in series with the digital switch The CBV strategy defines thresholds for voltage levels that would be considered a digital 1 or a digital 0 To set up UI 4 as an occupancy sensor 1 open CXproᴴᴰ 2 Right click on the Site or Network containing the CBV and sele...

Page 14: ...FF state is 4 V DC To set up UI 4 as a spare digital input 1 open CXproᴴᴰ 2 Right click on the Site or Network containing the CBV and select Commission BACnet Devices 3 In the Commission BACnet Devices dialog click on the Inputs column of the relevant CBV This opens the VAV Configuration dialog Choose the option Spare Digital Input The digital point in the Strategy that will determine a digital st...

Page 15: ... it is recommended that you use the ABB FusionAir Smart Sensor or the ABB Cylon CBT STAT H There is a dedicated port designed for these on the CBV 2U4 3T N accessed by removing the top cover as illustrated below Alternatively the diagram below illustrates the connection between CBV 2U4 3T N and a typical standard room sensor with a space temperature type III thermistor including a 5K setpoint slid...

Page 16: ...iable speed fan series or parallel Both AO 15 and DO 13 must be configured as either series or parallel for this feature AO 14 can be configured for controlling any first stage modulating heating valves SCR Silicone Controlled Rectifier or EMC Electronic Modulating Control type controls depending on the heating elements of the VAV box AO 15 can be configured for controlling any second stage modula...

Page 17: ... either hot 24 V AC or common In most applications users will be wiring the digital outputs to switch 24 V AC To switch 24 V AC users must wire an externally sourced 24 V AC hot toTRI CMN triac common onthe CBV 2U4 3T N the 24 V AC can be sourcedfrom the same power supply as the VAV or an external 24 V AC source The diagram below is a typical wiring diagram for controlling a relay by switching 24 ...

Page 18: ...mote configuration Setting the 7 way DIP switch to all zeros will allow the MAC address to be set electronically either locally by USB or remotely over BACnet It is also possible to use manual setting for initial commissioning and then cycling the power to force the controller to update its MAC address to match the DIP settings To enable subsequent electronic configuration set the DIP switch to al...

Page 19: ... through a room sensor that has been wired for serial communications insert the 9 pin D Type serial cable into a serial port on the PC on which NetLink is installed then insert the RJ 12 connector into the RJ 12 socket on the room sensor Once connected to the controller it is possible to change the settings on the controller using the CXproHD or preferably NetLink For details on how to use the CXp...

Page 20: ...0106 for further information Device Name is the user assigned name for the controller This is not necessary for BACnet communications however it is useful to name each controller for organizational purposes APDU Timeout seconds Leave this at the default setting of 3 seconds MSTP Station is the MS TP device address This is the unique address users must give each controller on the subnet fieldbus MS...

Page 21: ... not have a slide adjust then select none UI 3 There are no configurable options for this input If there is a supply air sensor that will be used for determining Primary Air State hot or cold air being supplied to VAV wire the sensor to this input Note Under options select Switch Heat Cool Primary Air State by SAT to enable this feature By default this feature is off and Primary Air State is set t...

Page 22: ...tage electric heat in VAV box DO 12 can be second stage electric and DO 13 could be a thermal valve controlling baseboard heat During normal occupied operationDO 13 will be the last stage of heat to come onas the heating demand rises However by designating DO 13 as baseboard heat it is possible to select only baseboard heat during unoccupied mode This will effectively make this output stage 1 heat...

Page 23: ...ollowing 0 Discharge Air Temperature default For UI4 Configuration set InputConfigA A242 analog setpoint to the following 0 None Remote CO2 Dehumidifier 32 Local CO2 For UI4 Configuration set InputConfigB A260 analog setpoint to the following 2 Local Dehumidifier 1 Local OCC Sensor 5 Spare Digital Input For the Primary State Options set InputConfigA A242 analog setpoint to the following 0 Switch H...

Page 24: ...n Off OutputConfigA A243 64 TriState 11 Open 12 Close OutputConfigB A261 3 Heat 1 PWM OutputConfigA A243 DO12 0 None 56 Heat 2 On Off OutputConfigA A243 0 TriState 11 Open 12 Close set at DO11 24 Heat 2 PWM OutputConfigA A243 DO13 0 None 64 Parallel Constant Volume Fan 64 Series Constant Volume Fan Heat 3 On Off OutputConfigA A243 192 OutputConfigB A261 128 192 Heat 3 PWM ...

Page 25: ...l Variable Speed Fan OutputConfigB A261 48 Series Variable Speed Fan OutputConfigB A261 Note To configure multiple output settings add numbers together for OutputConfigA A242 and OutputConfigB A261 For example to set 2 stages of on off heat and parallel fan operation OutputConfigA A261 will be set to 127 If it was a series fan it would be set to 127 Note For Series Fan configuration add a negative...

Page 26: ...on 2 0 No Baseboard OutputConfigC A84 129 DO11 is baseboard OutputConfigC A84 130 DO12 is baseboard OutputConfigC A84 132 DO13 is baseboard OutputConfigC A84 136 AO14 is baseboard OutputConfigC A84 144 AO15 Is baseboard OutputConfigC A84 160 Tristate Heat is baseboard OutputConfigC A84 Option 3 0 DO Tristate heat stages before AO heat OutputConfigC A84 64 AO heat before DO Tristate heat stages Out...

Page 27: ...Voltage 0 AO14 is direct acting AOConfigD A286 4 AO14 is reverse acting AOConfigD A286 AO15 0 AO15 is 0 10 VDC AOConfigD A286 8 AO15 is 2 10 VDC AOConfigD A286 16 AO15 enter custom open and closed voltage AOConfigD A286 AO15 Voltage 0 AO15 is direct acting AOConfigD A286 32 AO15 is reverse acting AOConfigD A286 Note To configure multiple output settings add numbers together for AOConfigD A286 For ...

Page 28: ...tion Overview ABB 2022 All Rights Reserved Subject to change without notice WWW CYLON COM 28 MAN0139 rev 14 Initial K Factor Configuration Enter an initial K Factor if available from the factory Changes MeasuredFlow K A218 ...

Page 29: ...bject to change without notice WWW CYLON COM 29 MAN0139 rev 14 CFM Setpoint Configuration Set CFM flows Min Cooling Flow TABPriAirDbandStpt A210 Max Cooling Flow TABPriAirMaxStpt A211 Min Heating Flow TABPriAirMinHtgStpt A153 Max Heating Flow TABPriAirMaxHgtStpt A212 ...

Page 30: ...change without notice WWW CYLON COM 30 MAN0139 rev 14 Fan Configuration Min Fan Speed TABFanDbandStpt A224 Max Cool Fan Speed TABFanMaxStpt A225 Max Heat Fan Speed TABFanHtgMaxStpt A226 Min Heat Fan Speed TABFanHtgMinStpt A154 Standby Variable Fan Speed TABFanStandbyStpt A227 ...

Page 31: ...the cooling mode The primary air flow rate will be varied between its TABPriAirDbandStpt A210 or deadband setpoint and its maximum Flowrate setpoint TABPriAirMaxStpt A211 as required to maintain the zone at the cooling temperature setpoint When the zone temperature falls to the heating setpoint the controller will enter the heating mode and the primary air flow rate will be varied between its TabP...

Page 32: ...imum heating Flowrate setpoint Normally on a cooling only VAV box both the TabPriAirMinHtgStpt A153 and the TabPriAirMaxHgtStpt A212 will be the same to maintain a minimum rate of flow into the space while in the heating mode SERIES SINGLE SPEED FAN The fan DO 13 will operate continuously whenever the unit is in the occupied state or in another state and in the cooling or heating mode The fan cont...

Page 33: ...riAirMaxHgtStpt A212 or maximum heating Flowrate setpoint Normally on a cooling only VAV box both the TabPriAirMinHtgStpt A153 and the TabPriAirMaxHgtStpt A212 will be the same to maintain a minimum rate of flow into the space while in the heating mode SERIES VARIABLE SPEED FAN The variable fan speed will be controlled by modulating AO 15 default 0 10 Vdc As more cooling is required the fan speed ...

Page 34: ...ontroller will enter the heating mode and the primary air flow rate will be varied between its TabPriAirMinHtgStpt A153 and its TabPriAirMaxHgtStpt A212 or maximum heating Flowrate setpoint The stages of electric heat are then staged and optionally duty cycled PWM as required to maintain the zone at the heating temperature setpoint INPUT OUTPUT POINTS VAV Electric Reheat no fan IO POINTS DESCRIPTI...

Page 35: ...setpoint FAN CONTROL Parallel Single Speed Fan Option During the occupied mode the intermittent single speed fan will typically be energized in the heating mode The typical fan control matrix is as follows although other options are possible MODE COOLING DEADBAND HEATING Occupied Off Off On Unoccupied Off Off On Warm up Off Off Off Standby Off Off On Series Single Speed Fan Option The fan will ope...

Page 36: ...the heating temperature setpoint FAN CONTROL Parallel Variable Fan Speed Option The variable fan speed will be controlled by modulating AO 15 default 0 10 Vdc The fan will run in heating mode only As more heating is required the fan speed will increase See Fan Control on page 58 for more detail Series Variable Fan Speed Option The variable fan speed will be controlled by modulating AO 15 default 0...

Page 37: ...i state control mode where DO 11 drives the hot water valve open and DO 12 drives it closed There are additional options availablesuch as having AO 14 as first stage modulating heat and AO 15 as second stage modulating heat Input Output Points VAV Modulating HW Reheat no fan AO 0 10 Vdc IO POINTS DESCRIPTION UI 01 Zone Temperature with optional override button UI 02 Setpoint Adjustment optional 5K...

Page 38: ... modulating hot water reheat valve will then drive open to maintain the desired heating setpoint Typically the modulating heating valve may be controlled by either AO 14 or DO 11 and DO 12 in a tri state control mode where DO 11 drives the hot water valve open and DO 12 drives it closed There are additional options available such as having AO 14 as first stage modulating heat and AO 15 as second s...

Page 39: ...ol CBV 2U4 3T N only DO 10 Damper Control CBV 2U4 3T N only DO 11 DO 12 DO 13 Parallel or Series Fan AO 14 Modulating Heat Control 0 10 Vdc AO 15 AO 16 Damper Control CBV 2U4 3T only VAV Modulating HW Reheat with 1 speed fan Tri state IO POINTS DESCRIPTION UI 01 Zone Temperature with optional override button UI 02 Setpoint Adjustment optional 5K slider UI 03 Discharge Temperature optional UI 04 CO...

Page 40: ...ter valve open and DO 12 drives it closed There are additional options available such as having AO 14 as first stage modulating heat and AO 15 as second stage modulating heat FAN CONTROL Parallel Variable Fan Speed Option The variable fanspeed will be controlled by modulating AO 15 default 0 10 Vdc The fan will run in heating mode only As more heating is required the fan speed will increase See Fa...

Page 41: ...mperature with optional override button UI 02 Setpoint Adjustment optional 5K slider UI 03 Discharge Temperature optional UI 04 CO2 Humidity or occupancy signal all optional UI 08 Flowrate Sensor DO 09 Damper Control CBV 2U4 3T N only DO 10 Damper Control CBV 2U4 3T N only DO 11 Heat Valve Open DO 12 Heat Valve Close DO 13 AO 14 AO 15 Variable Speed Parallel or Series Fan Speed Command 0 10 Vdc AO...

Page 42: ... for occupancy with minimum energy utilization Primary Air State Command The primary air state command tells the CBV 2U4 3T N to expect hot or cold air While in the off condition primary air state is cold Primary Air Mode Primary Air Mode is either ON or OFF indicating the AHU fanstatus or command state The unit will only operate when Primary Air Mode is set OFF TEMPERATURE CONTROL Control Modes T...

Page 43: ...alculated by the CBV 2U4 3T N controller Primary Air Flow Reset CO2 The primary air flow setpoint will increase as CO2 increases above the local CO2 setpoint Primary Air Flow Reset Dehumidification The primary air flow setpoint will increase as relative humidity increases above the local dehumidification setpoint HEATING CONTROL Terminal Unit Heat The CBV 2U4 3T N controller has both analog and di...

Page 44: ...int Series fanpowered terminal unitfans will energize whenever thespace temperature falls below unoccupied heating or rises above unoccupied cooling setpoints if unoccupied cooling is used OccModeSts D186 RO point is off Non occ this indicates the CBV 2U4 3T N is in the unoccupied state PRIMARY AIR STATE COMMAND The primary air state command tells the CBV 2U4 3T N toexpect hot or cold air This com...

Page 45: ...e GroupXOccCode command R W StandbyModeSts D187 RO PRIMARY AIR MODE Primary Air Mode is either ON or OFF Typically the master controller writes this command to the CBV 2U4 3T N box based on AHU fan status or similar start stop logic By default the Primary Air Mode is OFF and the CBV 2U4 3T N will allow the damper to operate in unoccupied mode Included in the GroupXOccCode command R W PriAirModeEff...

Page 46: ...ws for multiple different values to be written tothe specified GroupXOccCode point at various priorities This is most commonly used for fire stop commands being written at priority 1 or purge command at priority 2 Writing a 1 or 0 to the correct corresponding GroupXOccCode will enable or disable the occupancy mode and in addition may also contain several other commands as follows Group0OccCode A90...

Page 47: ... to default then CBV 2U4 3T N may not go into the mode that it is being commanded to The following is a list of those points and their default settings POINT NAME DEFAULT VALUE OccCmd D184 1 Occ CmdPriAirMode D160 0 Enable CmdPriAirState D161 0 Cooling StandbyCmd D185 0 Off LoadShedEnable D211 0 Disable FireStopCmd D199 0 Disable Purge D213 0 Disable BACNET COMMUNICATIONS STATUS AND STAND ALONE OP...

Page 48: ...off parallel fans are off and series variable speed series fans are set to minimum COOLING AND HEATING OFFSETS These points will offset the EffCoolStpt A183 and the EffHeatStpt A182 at the zone temperature cooling and heating PIDs Whenvalue is entered intothe CoolingOffsetPID A39 point the zone temperature cooling control PID will enable when zone temperature rises above the EffCoolStpt A183 The c...

Page 49: ...meration A190 VALUE FUNCTION 0 Deadband 1 Occupied Heating 2 Unoccupied Heating 4 Occupied Cooling 8 Unoccupied Cooling 16 Standby ZONE TEMPERATURE ALARMS If the zone temperature goes above the EffCoolStpt A183 or below the EffHeatStpt A182 by the DegreesAbvBlwSPAlarm A371 setpoint default 2 degrees then a delay timer will be started TempAlarmOnDelay A373 default 60 minutes If the zone temperature...

Page 50: ... operation terminal units are provided with primary air which is cooler than the zone temperature setpoint therefore the CBV 2U4 3T N controller operates with a cold primary air state In this mode the primary air damper opens in direct proportion to the cooling load percentage calculated by the CBV 2U4 3T N controller When the primary air state is cold the primary air volume control is approximate...

Page 51: ...lowrate Setpoint is also TABPriAirDbandStpt A210 Primary Air Flow Reset CO2 Local CO2 Sensor If the local ZoneCO2ValueCV A67 goes above the LocalCO2Stpt A255 the primary air flow setpoint will modulate up tothe TABPriAirMaxStpt A211 or maximum Flowrate setpoint CO2 demand calculation canbe determined from point LocalRemoteSlaveC02Calc A76 If the CBV 2U4 3T N is in heat mode the heat will stage on ...

Page 52: ... Remote Dehumidification Sensor If the CBV 2U4 3T N is a slave VAV box and another controller is master and has a relative humidity sensor users can write the dehumidification calculated demand to the RemoteSlaveDehumidCmd A1 When configured for remote dehumidification this will calculate the Flowrate setpoint in the same manner as if it had a local relative humidity sensor Calculated Flowrate Ala...

Page 53: ...ll override the Flowrate setpoint for the primary air damper to the indicated value Group0TABCode A77 typical for all 4 groups BIT FUNCTION OFF VALUE ON VALUE OFF STATE ON STATE 0 DampMaxManEff D131 0 1 normal control damper to max Flowrate stpt 1 DampMinManEff D132 0 2 normal control damper to deadband Flowrate stpt 2 DampAuxManEff D133 0 4 normal control damper to aux heat Flowrate stpt 3 DampOp...

Page 54: ...t A211 1 2 Set to DampMaxMan D193 to TRUE 1 3 Set KFactSelect D204 to TRUE 1 4 Allow airflow PriAirFlowCV A194 to reach TABPriAirMaxStpt A211 1 5 Enter balancers airflow reading in CFM in MeasuredFlow K A218 1 6 Again allow airflow PriAirFlowCV A194 to reach TABPriAirMaxStpt A211 1 7 Repeat as necessary 1 8 Calculated K factor can be read at KFactorOut A215 1 9 Set DampMaxMan D193 to FALSE when co...

Page 55: ...troller heating setpoint the CBV 2U4 3T N controller will modulate the hot water valve open Various voltage ranges and direct or reverse action are available Note If the CBV 2U4 3T N has been configured for a series or parallel fan heat will not be energized until the fan has been commanded on BASEBOARD HEAT The CBV 2U4 3T N control outputs not being used for terminal unit heat may be used for bas...

Page 56: ...y be configured to run AO or DO heat including Tri state outputs first last or concurrently DIGITAL OUTPUT DIRECT REVERSE ACTION In the CBV 2U4 3T N the digital outputs could also be set for reverse acting This would be typically used for controlling normally closed heating valves DO11RevAct DS313 DO12RevAct DS314 DO13RevAct DS312 DIGITAL OUTPUT DISPLAY POSITION These points will display the heat ...

Page 57: ...OG OUTPUT DIRECT REVERSE ACTION Direct or reverse action may be chosen from the spreadsheet for each AO ANALOG OUTPUT DISPLAY POSITION These points will display the full range 0 100 logical control signal to the output point no matter what the physical configuration is direct reverse 2 10 V DC etc AO14DisplayPos A155 AO15DisplayPos A241 ...

Page 58: ...nDB A381 then parallel fan will be disabled Once Flowrate drops below TABParallelDisableFanSP A380 parallel fan will then be enabled This is used to prevent high Flowrates at the diffusers SERIES SINGLE SPEED FAN The terminal unit fan will operate continuously whenever the CBV 2U4 3T N is in the occupied state It will also run whenever the CBV 2U4 3T N is in the unoccupied heating or unoccupied co...

Page 59: ...urrent Cool or Heat demand percent to the range from min to max fan speed For instance with a Cooling demand of 50 and a series fan with amin deadband fanspeed setpoint of 20 and a maximum cool stpt fan speed setpoint of 70 EffFanSpeedCmd A176 is calculated as follows Fan Speed Setpoint Range 70 max 20 min 50 Cool Demand 50 50 demand X 50 range 25 signal EffFanSpeedCmd A176 signal min EffFanSpeedC...

Page 60: ...ed state It will also run whenever the CBV 2U4 3T N is in the unoccupied heating or unoccupied cooling modes Max Heat Fan Speed Setpoint is TABFanHtgMaxStpt A226 Min Heat Fan Speed Setpoint is TabFanHtgMinStpt A154 Deadband Fan Speed Setpoint is TABFanDbandStpt A224 Cooling Fan Speed Setpoint is TABFanMaxStpt A225 0 10 20 30 40 50 60 70 80 90 100 68 69 70 71 72 73 74 75 76 77 Occupied Fan Speed St...

Page 61: ...hms Ohms 3 Analog Input UI03 Supply or Discharge Air Temperature F C 4 Analog Input UI04 CO2 Humidity or Motion Detection Volts Volts 8 Analog Input UI08 Flowrate Sensor Pascals Pascals 14 Analog Output AO14 Modulating Heat Stage 1 15 Analog Output AO15 Modulating Heat Stage 2 or Variable Fan Speed Control 16 Analog Output AO16 Damper Command Position CBV 2U4 3T ONLY DIGITAL POINT POINT TYPE OBJEC...

Page 62: ...mperDelay A20 CBV 2U4 3T ONLY The minimum amount of time in seconds before an alarm is raise for a stuck damper 60 sec 60 sec 22 No AFS_PressurePa A22 Pressure Reading 0 pascals 0 pascals 24 No Damper Feedback A24 Feedback Position of Damper actuator CBV 2U4 3T ONLY 28 No AFS_PressureIn A28 Pressure Reading 0 inH20 Imperial Only Imperial Only 32 Yes HeatingOffsetPID A32 Offsets effective heating s...

Page 63: ... ZeroOffsetCalc Measured offset after air flow sensor has been zeroed 0 no units 0 no units 106 No Fusion_ZoneHumidity A106 with Actuator The space humidity as detected by the FusionAir sensor FA Variants only 0 rh 0 rh 109 No Fusion_CO2 A109 with Actuator The space CO2 as detected by the FusionAir sensor FA Variants only 0 ppm 0 ppm 112 Yes ElecHeatCFMTestTime A112 Amount of seconds current Flowr...

Page 64: ...ing mode 4 Occupied cooling mode 8 Unoccupied cooling mode 16 Standby mode 0 no units 0 no units 191 No EffZoneUnoccCoolStpt A191 Active unoccupied cooling setpoint 0 F 0 C 192 No EffZoneUnoccHeatStpt A192 Active unoccupied heating setpoint 0 F 0 C 193 No ZoneTempCV A193 Current zone control temperature 0 F 0 C 194 No PriAirFlowCV A194 Current primary airflow 0 CFM 0 l sec 197 No EffPriAirFlowStpt...

Page 65: ...tSelect D204 is True input measured flow from balancer When KfactSelect D204 is False input factory K factor 219 No PriDamperCmdEnumeration A219 Enumerated value for damper command state 0 Off 1 Open 2 Close 4 Close Flowrate high for series fan 8 Open manual 16 Close manual 32 Closed fire stop 0 no units 0 no units 221 Yes CBT_STAT_CFG A221 Enumerated value for CBT Stat operation 0 None 1 OccOvrd ...

Page 66: ...0 0 248 Yes CustomOpenVX10_AO14 A248 AO14 Open Value Custom Volts X 10 50 50 249 Yes TABPriAirEffMinStpt A249 Current effective minimum CFM setpoint Will read min heat CFM min cool CFM or 0 cfm L s 253 Yes UI04CO2SensorBase A253 CO2 Sensor Reading at 0 V DC 0 ppm 0 ppm 254 Yes UI04CO2SensorSpan A254 CO2 Sensor Reading at 10 V DC 2000 ppm 2000 ppm 255 Yes LocalCO2Stpt A255 Net Zone CO2 Setpoint 500...

Page 67: ...SP A380 Parallel fan is enabled when Flowrate is below this setpoint 3000 cfm 1500 l sec 381 Yes TABParallelFanDB A381 Parallel fan will be disabled when Flowrate is above this point TABParallelDisableFanSP A380 50 cfm 25 l sec 383 Yes SeriesFanStartLckOutSP A383 Series fan is disabled if Flowrate is above this setpoint when first energized If this occurs damper will drive shut and when Flowrate d...

Page 68: ... 123 No PriAirStateEffCmd D123 Current Primary Air State Command Heatin g Cooling 0 0 125 No FireStopEffCmd D125 Primary Air Mode Fire Stop Command Enable Disable 0 0 127 No DehumidControlRemote_Slave D127 Dehumidification Control Source ON Remote OFF Local Enable Disable 0 0 128 No DamperStuck CBV 2U4 3T ONLY If after stuck damper delay A20 seconds the actual damper is not within of stuck damper ...

Page 69: ...Enable Disable 0 0 204 Yes KFactSelect D204 True will allow measured flow to be entered at A218 False will allow factory K factor to be entered at A218 On Off 0 0 208 No LoadShedEffCmd D208 Load Shed Enable Effective Command Enable Disable 0 0 210 Yes FanHeatMinMan D210 Fan Commanded to Min Heat Speed Manual Mode On Off 0 0 211 Yes LoadShedEnable D211 Load Shed Enable Command Enable Disable 0 0 21...

Page 70: ...DamperPosReset D296 By default when VAV is in unoccupied mode and there is less than 10 CFM the damper will drive shut for 100 seconds to zero out damper position calculation Enable Disable 1 1 297 Yes FusionStatLockout D297 with Actuator When set to ON temperature adjustment will be disabled on the FusionAir sensor When set to OFF temperature adjustment is enabled on the FusionAir sensor FA Varia...

Page 71: ...s its initial address DIP ON 1 2 3 4 5 6 7 0000001 Address 1 DIP ON 1 2 3 4 5 6 7 0000010 Address 2 DIP ON 1 2 3 4 5 6 7 0000011 Address 3 DIP ON 1 2 3 4 5 6 7 0000100 Address 4 DIP ON 1 2 3 4 5 6 7 0000101 Address 5 DIP ON 1 2 3 4 5 6 7 0000110 Address 6 DIP ON 1 2 3 4 5 6 7 0000111 Address 7 DIP ON 1 2 3 4 5 6 7 0001000 Address 8 DIP ON 1 2 3 4 5 6 7 0001001 Address 9 DIP ON 1 2 3 4 5 6 7 000101...

Page 72: ...00 Address 40 DIP ON 1 2 3 4 5 6 7 0101001 Address 41 DIP ON 1 2 3 4 5 6 7 0101010 Address 42 DIP ON 1 2 3 4 5 6 7 0101011 Address 43 DIP ON 1 2 3 4 5 6 7 0101100 Address 44 DIP ON 1 2 3 4 5 6 7 0101101 Address 45 DIP ON 1 2 3 4 5 6 7 0101110 Address 46 DIP ON 1 2 3 4 5 6 7 0101111 Address 47 DIP ON 1 2 3 4 5 6 7 0110000 Address 48 DIP ON 1 2 3 4 5 6 7 0110001 Address 49 DIP ON 1 2 3 4 5 6 7 01100...

Page 73: ...Address 80 DIP ON 1 2 3 4 5 6 7 1010001 Address 81 DIP ON 1 2 3 4 5 6 7 1010010 Address 82 DIP ON 1 2 3 4 5 6 7 1010011 Address 83 DIP ON 1 2 3 4 5 6 7 1010100 Address 84 DIP ON 1 2 3 4 5 6 7 1010101 Address 85 DIP ON 1 2 3 4 5 6 7 1010110 Address 86 DIP ON 1 2 3 4 5 6 7 1010111 Address 87 DIP ON 1 2 3 4 5 6 7 1011000 Address 88 DIP ON 1 2 3 4 5 6 7 1011001 Address 89 DIP ON 1 2 3 4 5 6 7 1011010 ...

Page 74: ...3 4 5 6 7 1110000 Address 112 DIP ON 1 2 3 4 5 6 7 1110001 Address 113 DIP ON 1 2 3 4 5 6 7 1110010 Address 114 DIP ON 1 2 3 4 5 6 7 1110011 Address 115 DIP ON 1 2 3 4 5 6 7 1110100 Address 116 DIP ON 1 2 3 4 5 6 7 1110101 Address 117 DIP ON 1 2 3 4 5 6 7 1110110 Address 118 DIP ON 1 2 3 4 5 6 7 1110111 Address 119 DIP ON 1 2 3 4 5 6 7 1111000 Address 120 DIP ON 1 2 3 4 5 6 7 1111001 Address 121 D...

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Page 76: ... Clonshaugh Dublin 17 Ireland Tel 353 1 245 0500 Fax 353 1 245 0501 Email info cylon com ABB CYLON CONTROLS ONE TECHNOLOGY LANE EXPORT PA 15632 Tel 1 724 733 2000 Fax 1 724 327 6124 ABB 2022 All Rights Reserved Subject to change without notice WWW CYLON COM ...

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