United Technologies Carrier Unit Vent Open Integration Manual Download Page 31

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Appendix A: Unit Vent Network Points List

Unit Ventilator

Integration Guide

Commanded Points

Control Points

Display Name

Type /
Instance

Object Name

Display Name

Type /
Instance

Object Name

†System
Fire/Smoke

bv:1907

fire_shutdown

Fire/Smoke
Shutdown

bv:7007

fire_alarm

†System
Pressurization

bv:1906

press_override

Pressurization

bv:7038

press_alarm

BAS On/Off
[Occupancy]

msv:1001

keypad_ovrde

Occupancy Status

bv:2008

occ_status

†

Points do not apply to multi-protocol controllers.

Network points list for BACnet and Modbus

BACnet

Modbus

Point Name

Point
Access

Units

Default
Value

BACnet Point Name

BACnet Object
ID

Modbus
Register
Type

Modbus
Register #

Return Air
Temperature

°F

ra_temp

AV:1010

Input
Register
(Float)

Setpoint

R/W

°F

occ_cl_stpt

AV:3001

Holding
Register
(Float)

Setpoint

R/W

°F

occ_ht_stpt

AV:3002

Holding
Register
(Float)

Setpoint

R/W

°F

unocc_cl_stpt

AV:3003

Holding
Register
(Float)

Setpoint

R/W

°F

unocc_ht_stpt

AV:3004

Holding
Register
(Float)

Supply Fan
Status

Off
On

sfan_status

BV:1003

Discrete
Input

Supply Air
Temperature

°F

sa_temp

AV:1008

Input
Register
(Float)

109

Cooling Lockout
Temperature

R/W

°F

oat_cl_lockout

AV:9002

Holding
Register
(Float)

Cooling Output

clg_output

AV:2025

Input
Register
(Float)

Damper Lockout
Temp

R/W

°F

oatlecon

AV:4004

Holding
Register
(Float)

Damper Output

oa_dpr_pos

AV:2022

Input
Register

169

Summary of Contents for Carrier Unit Vent Open

Page 1: ...V Ve en nt ti il la at to or r I In nt te eg gr ra at ti io on n G Gu ui id de e CARRIER CORPORATION 2019 A member of the United Technologies Corporation family Stock symbol UTX Catalog No 11 808 513...

Page 2: ...ur local Carrier office Important changes are listed in Document revision history at the end of this document CARRIER CORPORATION 2019 All rights reserved throughout the world i Vu is a registered tra...

Page 3: ...for LonWorks communication 15 Troubleshooting LonWorks communication 16 Start up 16 Sequence of Operation 17 Scheduling 17 Supply fan 18 Cooling 19 Heating 20 Mixed air damper Modulating 22 Mixed air...

Page 4: ...rnal application programming provides optimum performance and energy efficiency Unit Vent enables the unit to run in 100 stand alone control mode or it can communicate to the Building Automation Syste...

Page 5: ...Contact Fan Status Dry Contact N A Freezestat BI IN 6 1 Gnd Low Limit Thermostat Dry Contact N A OA Damper AO AO 1 2 Gnd Mixed Air Damper 0 10 Vdc 2 10 Vdc N A Valve F B AO AO 2 4 Gnd Face Bypass Damp...

Page 6: ...Cnet MS TP N2 Modbus and through the Option Card port for the LonWorks Option Card NOTES Changing protocol requires no programming or point assignment by the installer or operator Power must be cycled...

Page 7: ...address Set the Tens 10 s switch to the tens digit of the address and set the Ones 1 s switch to the ones digit EXAMPLE If the controller s address is 25 point the arrow on the Tens 10 s switch to 2...

Page 8: ...imizes MS TP network communications by preventing token passes and poll for master requests to non existent Master nodes In the above example MAC address 16 knows to pass the token back to MAC address...

Page 9: ...the Equipment Touch interface navigate to the Properties Menu screen and click Login NOTE The following graphic is generic and not specific to your system 2 Type Touch for the password and click Done...

Page 10: ...tlined in this manual Review all of the steps and use the following list to check your settings Verify accuracy of the following Hardware settings for BACnet MS TP 8 Data bits No Parity and 1 Stop bit...

Page 11: ...it Vent recognizes its address only after power has been cycled 3 Set communications selector for BACnet ARC156 4 Set the both DIP switches 3 and 4 OFF for BACnet ARC156 NOTE The baud rate for BACnet...

Page 12: ...controller recognizes physical changes DIP switches rotary switches and jumpers upon power up If RX LED is solid then the terminations are incorrect If the network has greater than 32 devices or excee...

Page 13: ...00 feet 610 meters or 32 nodes Devices should be daisy chained and not star wired Attach the drain shield wire to both ends of the network segment and through every controller NOTE Use the same polari...

Page 14: ...hes rotary switches and jumpers upon power up Refer to Appendix A for the Network Points list Refer to Appendix D for the Protocol Implementation Conformance Statement Software settings defined throug...

Page 15: ...d 22 AWG shielded twisted pair wire EIA 485 Maximum wire length 2000 feet 610 meters or 32 nodes Devices should be daisy chained and not star wired Attach the drain shield wire to both ends of the net...

Page 16: ...y switches and jumpers upon power up Modbus Exception Codes that might be returned from this controller Codes Name Description 01 Illegal Function The Modbus function code used in the query is not sup...

Page 17: ...ique address Set the Tens 10 s switch to the tens digit of the address and set the Ones 1 s switch to the ones digit EXAMPLE If the controller s address is 25 point the arrow on the Tens 10 s switch t...

Page 18: ...system s network layout diagram This is done using the device s unique Neuron ID A network management tool such as Echelon s LonMaker is used to commission each device as well as to assign addressing...

Page 19: ...nterfaces to start up access information read sensor values and test the controller This interface Provides a Field Assistant application Runs on a laptop that connects to controller s Local Access po...

Page 20: ...source can be changed to one of the following Occupancy Schedules The controller is occupied 24 7 until you configure a time schedule using the Equipment Touch Field Assistant or the i Vu application...

Page 21: ...he space temperature failure alarm condensate overflow alarm or the test mode is active the fan shuts down immediately regardless of occupancy state or demand Automatic Fan Speed Control The Unit Vent...

Page 22: ...Fan Status Option The optional input can be configured as either an occupancy input or a fan status input If configured as fan status the controller compares the status of the fan to the desired comma...

Page 23: ...d Water The control can operate a modulating 0 10 Vdc or 2 10 Vdc type F B damper and an optional 2 position NO or NC chilled water valve to maintain the desired cooling setpoint The damper modulates...

Page 24: ...rolled to maintain the Heating Control Setpoint during heating and will not exceed the Maximum Heating SAT limit If the fan is off or a fan failure alarm occurs the valve modulates to maintain the Sup...

Page 25: ...is Modulating Space temperature reading is valid Supply Fan must be on and not in Alarm OAT is valid Heat mode is not active Fire Smoke Detector FSD is Normal OAT is less than Damper Lockout Temperatu...

Page 26: ...monitors the CO2 level and compares it to the configured setpoints and adjusts the minimum damper position as required The control provides proportional ventilation to meet the requirements of ASHRAE...

Page 27: ...DCV Override These can be adjusted to meet various specifications Demand Limiting The Unit Vent accepts 3 levels of demand limit from the network In response to a demand limit the unit decreases its h...

Page 28: ...interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at h...

Page 29: ...r in the navigation tree and go to Properties BACnet Objects tab When an i Vu Open controller or a third party system writes to any of the system points you must use BACnet Priority Level 16 and the v...

Page 30: ...ned the system point to its default value Therefore a BAS should never read back the system point s value to confirm the commanded value was successfully received To confirm a write refer to the table...

Page 31: ...Default Value BACnet Point Name BACnet Object ID Modbus Register Type Modbus Register Return Air Temperature R F ra_temp AV 1010 Input Register Float 65 Setpoint R W F occ_cl_stpt AV 3001 Holding Reg...

Page 32: ...AV 2026 Input Register Float 37 Occ Override Delay R W min 15 occ_ovr_delay AV 9028 Holding Register Float 63 Outdoor Air Temperature R F oa_temp AV 1003 Input Register Float 87 Override Time Remainin...

Page 33: ...7012 Discrete Input 39 Occupancy Status R Unoccupied Occupied occ_status BV 2008 Discrete Input 18 Outdoor Air Temperature R Normal Alarm oat_alarm BV 7036 Discrete Input 19 Reset Filter Alarm R W Off...

Page 34: ...Float 147 Maximum Heating SAT R W F 105 sat_ht_max AV 83004 Holding Register Float 41 Minimum Cooling SAT R W F 50 sat_cl_min AV 83003 Holding Register Float 61 Space Temp Source R 1 Sensor Failure 2...

Page 35: ...ADF 74 nvoOAVntDmpr Output active default Damper Setpoint Override Value R W F F ADF 19 nviDmpSetOvr Input passive default Economizer Purge Min Pos R W Open Open ADF 5 nviEcnPrgMin Input passive defa...

Page 36: ...Output active default Indoor Air Quality R Normal Alarm BI 33 nvoIAQAlm Output active default Indoor Air Quality Sensor R Normal Alarm BI 37 nvoIAQSensor Output active default Low Space Temperature R...

Page 37: ...default System Mode R 1 Off 2 Fan Only 3 Economize 4 Cooling 5 Heating 6 Cont Fan 7 Test 8 Start Delay 9 Temper SAT 10 Fire Shutdown 11 Shutdown 12 IAQ Override 12 Pre occ Purge ADI 13 nvoOpMode Outp...

Page 38: ...IER CORPORATION 2019 Integration Guide All rights reserved 35 The PIC statements are updated regularly Please refer to the BACnet website http www bacnetinternational net catalog index php m 28 for th...

Page 39: ...Is static device binding supported This is currently necessary for 2 way communication with MS TP slaves and certain other devices XX Yes Networking Options Router Clause 6 List all routing configura...

Page 40: ...Inputs BI Analog Outputs AO Binary Outputs BO Internal Floats ADF Internal Integers ADI Internal Bytes BD Protocol Commands Identify Device Type Write Analog Input Sync Time Write Binary Input Poll W...

Page 41: ...ete Outputs single 00001 09999 06 Preset Single Register Write Holding Registers single 40001 49999 15 Force Multiple Coils Write Discrete Outputs 00001 09999 16 Preset Multiple Coils Write Holding Re...

Page 42: ...SNVT_speed_mil SNVT_alarm_2 SNVT_evap_state SNVT_motor_state SNVT_state SNVT_amp SNVT_ex_control SNVT_muldiv SNVT_state_64 SNVT_amp_ac SNVT_file_pos SNVT_multiplier SNVT_str_asc SNVT_amp_f SNVT_file_...

Page 43: ...fr_mode SNVT_length_micr SNVT_res SNVT_volt_dbmv SNVT_defr_state SNVT_length_mil SNVT_res_f SNVT_volt_f SNVT_defr_term SNVT_lev_cont SNVT_res_kilo SNVT_volt_kilo SNVT_density SNVT_lev_cont_f SNVT_rpm...

Page 44: ...JN E RD 5 22 18 Troubleshooting BACnet MS TP Troubleshooting N2 Troubleshooting ARC156 Corrected BACnet Device Instance number C TS RD F 1 11 18 Sequence of Operation Supply Fan Section added on Conf...

Page 45: ...CARRIER CORPORATION 2019 A member of the United Technologies Corporation family Stock symbol UTX Catalog No 11 808 513 01 11 19 2019...

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