User Guide for ACCUREX models including: XDGX Make up Air Direct Gas, XDGX, Make up Air Direct Gas, Air Direct Gas, Direct Gas
Make-up Air Direct Gas - XDGX | Accurex
Make-up Air Modular Heated & Cooled - XMSX | Accurex
File Info : application/pdf, 11 Pages, 382.36KB
DocumentDocumentBACnet Quick Start Guide
1 W ire Network Connection
M S/ TP
A
TCP/ IP
A Ethernet Port Lights
c.pCO M ini Cont roller
2 Adjust BACnet Network Settings
M enu Structure Reference M ain M enu
Ct rl Variables Advanced Login Net w ork Set tings
2.1 Ent er User Password
2.2 BACnet M S/ TP Set tings 2.2 BACnet IP Set t ings
Ethernet Port Lights Green: Connect ed Yellow : On = 100M bps Off = 10 M bps
3 Command Unit Operation 1. Enable Unit 2. Cont rol Occupancy 3. Reset Alarms 4. Global Alarm Not ification 5. Cont rol Temperature Set point (o p t io n al)
Object
BV-2 BV-3 BV-4 BV-19
Object Nam e
Syst em_Enable BM S_Occupancy_Com mand Reset _All_Alarms Global_Alarm
AV-1 Tem perat ure_Set point
Object Descript ion
M ast er syst em enable/ disable point . Occupancy Command Alarm Reset Command Alarm Notificat ion (any alarm by default ) Set s the act ive t emperat ure set-point based on mode of operat ion (space set point , ret ur n setpoint or supply setpoint ). Not applicable for out side reset .
M UA BACnet Quick St art Guide
Act ive Text
Inact ive Text
Variable Type
Enabled
Disabled
Uno ccu p i ed
Occu pi ed
Reset
Nor m al
Alar m
Nor m al
Default = 72°F M in = 50°F; M ax = 100°F
January 2023
Document 485941 BACnet Int egrat ion Guide for
M akeup Air Systems
Reference Guide for BACnet Int egrat ion
Please read and save t hese inst ruct ions for fut ure reference. The information in t his guide assumes t he cont roller was already configured wit h BACnet based on t he original sales configuration. If t he cont roller does not have BACnet enabled, please cont act t he equipment represent ative t o get t he necessary licensing and configuration files t o allow BACnet communication t o be used.
M UA_01.001 Rev 2 Document Date: 01/ 2023
Basic Unit Int egration Below are the basic int egrat ion functions available on all equipment regardless of cont rol mode. Some feat ures are unit configurat ion dependent (heat ing t ype, cooling t ype, et c.). The cont roller's BM S point s list is st atic regardless of configurat ion to accommodat e field configurat ion changes, however, not all point s are applicable every unit . Once the required sensors are inst alled in t he equipment , the only mandat ory requirement s to make the unit operat ional are to enable t he unit , if it hasn't been enabled manually at t he cont roller, and to command occupancy as desired.
Object
Variable
De script ion
Active Text
Inactive Text
Unit Enable/ Disable Operation
If desired, t he unit can be enabled and disabled by the BM S syst em. In disabled mode, cert ain saf ety sequences may operat e t o prot ect the
building and/ or equipment but general heat ing, cooling and vent ilat ion operat ion will not funct ion.
BV-2 Syst em_Enable
M ast er syst em enable/ disable command
Enabled
Disabled
Unit Occupancy Control
By default , t he unit occupancy is expect ed t o be commanded by t he BM S occupancy point . Alt ernat ively, t he unit occupancy can be cont rolled
by an int ernal schedule, set t o always unoccupied, always occupied or cont rolled by a digit al input by changing t he occupancy m ode select ion
at t he cont roller. If t he cont roller is configured f or warm-up/ cool-dow n mode, aft er t he occupancy com mand is received t he unit will run in
unoccupied recirculat ion mode unt il reaching t he occupied t emperat ure set point or t he warm-up/ cool dow n t ime expires (default 30 minut es)
at which point the cont roller will ent er nor mal occupied mode operat ion.
BV-3 BM S_Occupancy_Command
Building Occupancy Command
Unoccupied
Occu p i ed
Alarms
The following point s allow t he not ificat ion of any alarm and t he last alarm t riggered to be r ead, as w ell as act ive alarms that t o be manually
reset remot ely. See t he unit 's full BM S point s list if specific alarm monit oring or t rending is desired.
BV-4 Reset _All_Alarms
Alarm Reset Command
Reset
Nor m al
BV-19 Global_Alarm
Global Alarm
Alarm
Nor m al
IV-9 Lat est Alm
M ost recent act ive alarm
See Alarm Table (0 = No Act ive Alarm)
M onitoring Unit Operation
Unit status
AV-41 Unit _St at us_M ode
Unit Operat ion M ode/ St at e
See St at us M ode Table
Fans and Dampers
BI-1
Exhaust _Fan_1_St at us_Digit al_Input
Exhaust Fan 1 St at us
Act ive
Inact ive
BI-2
Supply_Fan_1_St at us_Digit al_Input
Supply Fan 1 St at us
Act ive
Inact ive
AV-62 Out side_Airflow_M ask
Percent age of Out side Airflow
Real (%)
AV-63 Supply_Fan_Speed_Analog_Out put
Supply Fan Speed Analog Out put
Real (%)
Cooling
IV-15* Cooling_is_On (Bit 20)
Indicat es t hat the unit is cooling
Act ive
Inact ive
AV-43 Cooling_1_Ramp_Capacit y
Cooling Ramp 1 St at us Value
Real (%)
Heating
IV-15* Heat ing_is_On (Bit 21)
Indicat es t hat the unit is heat ing
Act ive
Inact ive
AV-46 Heat ing_Capacit y
Heat ing Ramp
Real (%)
Filters
IV-13* (Bit 3)
Filt er_Alarm_Digit al_Input
Filt er Alarm Digit al Input St at us
Alarm
Nor m al
Refrigeration System s
IV-10* (Bit 3)
Compr essor _1_Enable_Digit al_Out put
Compr essor 1 Enable Digit al Out put
Act ive
Inact ive
IV-10* (Bit 4)
Compr essor _2_Enable_Digit al_Out put
Compr essor 2 Enable Digit al Out put
Act ive
Inact ive
AV-64 M odulat ing_Compressor_Analog_Out put _BM S M odulat ing Compressor Analog Out put
Real (%)
BACnet Int egrat ion Guide M UA_01.001 Rev 2
Page | 1
Object
Variable
Chilled W ater Systems
AV-58 Chilled_Wat er_1_Valve_Analog_Out put
Evaporative Cooling Systems
IV-10* Evap_Valve_Enable_Digit _Out put (Bit 16)
IV-10* Evap_Pump_Enable_Digit _Out put (Bit 17)
Hot W ater Systems
AV-60 Hot _Wat er _Valve_1_Analog_Out put
IG Furnaces
IV-10* (Bit 7)
Furnace_1_St age_1_Digit al_Out put
IV-10* (Bit 8)
Furnace_1_St age_2_Digit al_Out put
IV-10* (Bit 9)
Furnace_2_St age_1_Digit al_Out put
IV-10* (Bit 10) Furnace_2_St age_2_Digit al_Out put
IV-10* (Bit 11)
Furnace_3_St age_1_Digit al_Out put
AV-61 M od_Gas_Furnace_1_Analog_Out put
Electric Post-Heat
IV-10* (Bit 15)
Elect ric_Heat er_St art _St op_Digit al_Out put
AV-59 Elect ric_Heat er_1_Analog_Out put
Direct Gas Burner
IV-10* Direct _Gas_Heat ing_Enable_Digit al_Out put
(Bit 14)
Sensor Values (w hen equipped)
AI-1 Space_Temp_Analog_Input
AI-2 Supply_Temp_Analog_Input
AI-3 Out side_Air_Temp_Analog_Input
AI-9 Space_St at ic_Pressure_Analog_Input
AI-10 Supply_Duct _St at ic_Pressure_Analog_Input
AI-11 Space_CO2_1_Analog_Input
AI-12 Ret urn_CO2_Analog_Input
AV-56 OAD_CFM _BM S
Active Setpoint s
AV-42 Supply_Temperat ure_Calculat ed_Set point
* Please see Binary Tables.
De script ion
Chilled Wat er 1 Valve Analog Out put
Evaporat ive Cooling Valve Enable Evaporat ive Cooling Pump Enable
Hot Wat er Valve 1 Analog Out put
Furnace 1 St age 1 Digit al Out put Furnace 1 St age 2 Digit al Out put Furnace 2 St age 1 Digit al Out put Furnace 2 St age 2 Digit al Out put Furnace 3 St age 1 Digit al Out put M od Gas Fur nace 1 Analog Out put
Elect ric Heat er Digit al Out put Elect ric Heat er 1 Analog Out put
Direct Gas Enable Digit al Out put
Space Air Temperat ure Supply(discharge) Air Temperat ure Out side Air Temperat ure Space St at ic Pressure Supply Duct St at ic Pressure Space 1 CO2 ppm Ret urn CO2 ppm Out door Air Damper CFM Act ive Supply Temperat ure Set point
Active Text
Inactive Text
Real (%)
Act ive Act ive
Inact ive Inact ive
Real (%)
Act ive
Inact ive
Act ive
Inact ive
Act ive
Inact ive
Act ive
Inact ive
Act ive
Inact ive
Real (%)
Real (%)
Act ive
Inact ive
Real (°F) Real (°F) Real (°F) Real (" wc) Real (" wc) Real (ppm) Real (ppm) Real (cfm)
Real (°F)
Unpacking Int eger Words to Binary Values Binary values can be combined to creat e an int eger word. By doing t his, more informat ion is available t o t he BM Sin a smaller number of point s and less net work traffic. These int eger words need t o be "unpacked" once t he BM S receives t he value.
Object
Variable
Packed Integer W ords
IV-10 Digit al_Out put _Word
IV-11 Cooling_Alarm_Word
IV-12 Device_Offline_Word
IV-13 Device_Alarm _Word
IV-14 Heat ing_Alarm_Word
IV-15 Unit _St at us_Word
De script ion
Digit al Out put Enables Cooling Device Alarms Device Communicat ion Alarms Device Alarms Heat ing Device Alarms Unit St at us Word
Reference Table
Bit Packed Word - See Binary Tables Bit Packed Word - See Binary Tables Bit Packed Word - See Binary Tables Bit Packed Word - See Binary Tables Bit Packed Word - See Binary Tables Bit Packed Word - See Binary Tables
To unpack the int eger word int o t he binary values, t he integer needs to be convert ed t o a binary number. The int egers in t he program are 32-bit , meaning up to 32 binary values are packed int o t he integer. Each bit can eit her be a 0 (Inact ive) or a 1 (Active).
The BM Sfront end may have a solut ion already int act t o pull individual bit s from an int eger. A " read bit " function looks t o return what value a cert ain bit is in an int eger. Bit number are 0-31 in a 32-bit int eger wit h 0 being t he low est bit and t he furt hest t o t he right in t he binary not at ion of the number. Bit 31 would be t he largest bit and t he furthest t o t he left in binary notat ion.
BACnet Int egrat ion Guide M UA_01.001 Rev 2
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If t he front end does not have a " read bit " or "bit ext ract" f unct ion, t he binary value of individual bit s can be det ermined by continually dividing t he quotient of t he int eger by 2, the remainder of t he division is t he value of t he bit (0 or 1). A funct ion called M odulo or " mod" and is commonly used to ret urn t he remainder of int eger division.
Equat ion: x = (round down(a/ 2b) )mod 2
· x is Boolean value for bit b, where 0 is inactive and 1 is active. · a is the int eger word value · b is t he bit of the binary number used as an exponent · The result of a/ 2b should round down t o a whole number, t runcating t he decimal. For example, 5/ 21 is 2.5,
however, only t he 2 is used.
Exam ple:
If t he Device_Offline_Word (IV-12) is a decimal value of 11, t he binary value would be 1011. This binary value would mean that Space Thermost ats 1, 2, and 4 are offline. The rest of t he bit s in t he binary number would be a Boolean value of 0. (Please see Binary Tables.)
· Bit 0 = 11/ 20 mod 2...t his result s in a Boolean of 1 or Active for bit 0. · Bit 1 = 11/ 21 mod 2...t his result s in a Boolean of 1 or Active for bit 1. · Bit 2 = 11/ 22 mod 2...t his result s in a Boolean of 0 or Inactive for bit 2. · Bit 3 = 11/ 23 mod 2...t his result s in a Boolean of 1 or Active for bit 3.
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
Val 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
1
M odifying Equipment Operat ion In addit ion t o commanding unit occupancy, some syst em level sequences may require feedback from t he BM S. Common BM Sadjusted sequences include it ems like supply air t emperature reset control, demand cont rol vent ilat ion for mult iple zones, and duct st atic pressure reset .
HEATING AND COOLING OPERATION SETPOINTS
Object
Variable
De script ion
Active Text
Inactive Text
Adjusting Temperature Setpoints
Cont roller Provided Sequences Occupied M ode
The cont roller has several st and-alone supply air temperat ure cont rol modes wit h set point s that can be modified by the BM S. These modes include a
st at ic supply air t emperat ure set point (no-reset) or allows for t he supply air temperat ure setpoint to be reset based on out side air t emperat ure, space
t emperat ure, or retur n air t emperat ure.
IV-1 Temperat ure_Reset _M ode
Commands t he reset mode during occupied oper at ion .
1 = No Reset , 2 = Space Reset 3 = Ret urn Reset, 4 = Out side Reset
Set s the t emperat ure set point based on mode
AV-1 Temperat ure_Set point
of operat ion (space set point , ret urn set point or supply set point ).
Real, Default = 72°F * M in = 50°F; M ax = 120°F
Not applicable for out side reset.
Heat / Cool Set pt Deadband w hen Space or
Real, Default = 4°F
AV-2 Temperat ure_Heat _Cool_Deadband
Ret urn reset cont rol is act ive. Ht g Set pt = Temp Set pt - Deadband / 2
M in = 0.1°F; M ax = 20°F [Space/ Ret urn Heat ing = 70°F,
Clg Set pt = Temp Set pt - Deadband / 2
Space/ Ret urn Cooling = 74°F]
Cont roller Provided Sequences Unoccupied M ode
When the unoccupied mode of operat ion is set t o night set back t emperat ure, normal operat ion wit h unoccupied setpoint s, or recirculat ion wit h
unoccupied set point s, t he following set point s cont rol unoccupied heat ing and cooling operat ion. If night set back is select ed as t he Unoccupied M ode
of operat ion, t he reset mode will not be available to change at t he cont roller and should be set to Space Reset (2).
IV-2 Temperat ure_Reset _M ode_Unoccupied
Commands t he reset mode during occupied oper at ion .
1 = No Reset , 2 = Space Reset 3 = Ret urn Reset, 4 = Out side Reset
Set s the t emperat ure set point based on mode
AV-3 Temperat ure_Set point _Unoccupied
of operat ion (space set point , ret urn set point or supply set point ).
Real, Default = 72.5°F * M in = 50°F; M ax = 120°F
Not applicable for out side reset.
* Typical range for st andard configurat ion unit, please verify at point min and max propert ies.
BACnet Int egrat ion Guide M UA_01.001 Rev 2
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Object
Variable
De script ion
Heat / Cool Set pt Deadband w hen Space or
AV-4
Ret urn reset cont rol is act ive. Temperat ure_Heat _Cool_Deadband_Unoccupied Unooc Clg Set pt = Deadband / 2 + Temp Set pt
Unocc Ht g Set pt = Deadband / 2 - Temp Setpt
BM SCont r olled Sequences
BM S cont rol over reset writ e t o t emp set point and have mode in No reset.
Active Text
Inactive Text
Real, Default = 15°F
M in = 0.1°F; M ax = 40°F
[Space/ Ret urn Heat ing = 65°F,
Space/ Ret urn Cooling = 80°F]
AIRFLOW OPERATION SETPOINTS
Object
Variable
De script ion
Active Text
Inactive Text
Airflow Setpoints
Airflow operat ion of supply fan, exhaust fan, and mixing dampers may use set point s from duct pressur e, space pressur e, CO2 sensors, or airflow
measuring st at ions t o properly cont rol airflow in an applicat ion. The Out side Air Damper M inimum Set point Occupied applies t o all unit s wit h
modulat ing out side air dampers. The setpoint is used t o est ablish an absolut e minimum posit ion for vent ilat ing t he space w hile allowing ot her cont r ol
modes t o open t he damper furt her as necessary. Out door and recirculat ing air dam pers operat e inversely using t he same signal.
AV-16 Space_St at ic_Pressure_Set point
Space St at ic Pressure Set point
Default = 0.05" w c M in = -0.5" w c; M ax = 0.5" w c
AV-17 Supply_Duct _St at ic_Pressure_Set point
Supply Duct St at ic Pressure Set point
Default = 1.0" w c M in = 0" wc; M ax = 5" wc
AV-18 Space_CO2_Set point
Space CO2 Set point
Default = 1,000 ppm M in = 0 ppm; M ax = 5,000 ppm
AV-19 Out side_Air_Damper _M inimum_Set point _Occ Out side Air Damper M inim um Set point Occupied
Default = 35% M in = 0%; M ax = 100%
BM SWat chdog Enabled Control
BM S W ATCHDOG
When direct ly commanding fans speeds, damper posit ions, or sending sensor values, the unit cont roller requires the BM SWat chdog point t o be writ t en t o on a recurring basis. This tells the unit controller that t he BM S is st ill actively com m u n i cat in g.
Object
Variable
De script ion
Active Text
Inactive Text
BM S W atchdog
The BM S Wat chdog must be writ t en to True (1) regularly t o verify communicat ion is est ablished between t he unit cont roller and t he BM S headend
syst em. If t he BM S Wat chdog value r emains False(0) for longer t han the Timeout Delay (15 minut es, adjust able), an alarm is generat ed and t he
cont r oller falls back t o local cont rol and sensor values, as applicable, inst ead of using BM S com manded values.
BV-1 BM S_Wat chdog
BM S Wat chdog command
Act ive
Inact ive
BV-20 BM S_Wat chdog_Act ive
St at us of t he BM S wat chdog ping.
Act ive
Inact ive
CONTROLLING AIRFLOW DEVICES
If desired, t he speeds and posit ions of airflow devices can be cont rolled directly using BACnet commandable point s. To cont rol t he devices via the BM S, t he BM SWat chdog requirement s must be sat isfied.
Object
Variable
De script ion
Active Text
Inactive Text
Fan Controls
Fan speeds can be cont rolled direct ly t hough BM S point s. The binary point s enable t he BM S t o t ake cont rol and t he analog values command the
speeds as a percent age bet ween t he allowed minim um and maximum values set in t he cont roller.
Supply Fan
BV-14 SF_Cont rol_Source_BM S
Allows t he BM S t o cont r ol supply fan speed
BM S
Local
AV-38 SF_Cont rol_Signal_BM S
Supply Fan Command Speed
Real (%) * M in=50%; M ax=100%
Outdoor Air/ Recirculation Air Damper Control
The out door air damper posit ion can be cont r olled direct ly by t he BM S to adjust the mixt ure of out door air and recirculat ion air on unit s configured for
recirculat ion. M inimum and maxim um values for occupied and unoccupied mode set at the unit cont r oller are enforced.
BV-15 OAD_Cont r ol_Source_BM S
Allows t he BM S t o cont r ol OAD posit ion
BM S
Local
AV-39 OAD_Cont r ol_Signal_BM S
Out side Air Damper Cont r ol Signal via BM S
Real (%) M in=0%; M ax=100%
* Typical range for st andard configurat ion unit, please verify at point min and max propert ies.
BACnet Int egrat ion Guide M UA_01.001 Rev 2
Page | 4
SENDING SENSOR VALUES
Sensor values required for sequence operat ion can be sent t o t he cont roller over dedicat ed BM S point s in place of a sensor wired t o the cont roller (local sensor). When values are communicated to t he cont roller over BM S, t he BM S Wat chdog must be satisfied. If t he wat chdog isn't sat isfied, t he controller revert s to the local sensor (if inst alled and valid) t o cont rol the unit or falls back t o local cont rol unt il t he BM S wat chdog is sat isfied.
Object
Variable
De scrip t ion
Active Text
Inactive Text
BM S W riteable Sensor Values
To writ e the sensor values over BM S, first command t he cont roller t o use t he BM Svalue using t he corresponding binary value and t hen use the corresponding analog value t o send t he sensor value.
Sensor Sources
BV-6 Out side_Temp_Source_BM S
Out side Temp Source Select ion
BM S
Local
BV-9 Space_1_CO2_Source_BM S
Space 1 CO2 Source Select ion
BM S
Local
BV-10 Ret urn_CO2_Source_BM S
Ret urn CO2 Source Select ion
BM S
Local
BV-12 Space_St at ic_Source_BM S
Space St at ic Source Select ion
BM S
Local
BV-13 Space_Temp_Source_BM S
Space Temp Source Select ion
BM S
Local
Sensor Values
AV-30 Out side_Temp_from_BM S
Out side Temp from BM S
Real (°F)
AV-33 Space_1_CO2_from_BM S
Space 1 CO2 from BM S
Real (ppm)
AV-34 Ret urn_CO2_from _BM S
Ret urn CO2 fr om BM S
Real (ppm)
AV-36 Space_St at ic_from_BM S
Space St at ic from BM S
Real (" w c)
AV-37 Space_Temp_from_BM S
Space Temp from BM S
Real (°F)
M enu Structure Reference M ain M enu Cont rol Variables Advanced Net work Set tings Advanced Set tings
Advanced BACnet Set tings
Addit ional set tings can be accessed in t he BACnet Advanced Set t ings menu including BACnet Broadcast M anagement Device (BBM D) configuration, relinquish default set t ings, Change of Value (COV) increment s and rest oring binary text values.
BBM D CONFIGURATION
To configure the cont roller t o operate wit h a BACnet Broadcast M anagement Device (BBM D) on IP networks, go t o t he advanced BACnet set t ings menu and ent er t he IP address of t he BBM D, foreign device configurat ion, and t ime t o live set tings.
COV INCREM ENTS
BACnet COV is an opt ional portion of BACnet t hat support s providing new values/ informat ion only aft er an increase or decrease of t he value is at least t he list ed COV increment . The controller's COV increment s are based on t he unit of measure. All variables wit h t he same unit of measure share t he same COV increment value. Values can be adjust ed on t his screen, or by writing t o t he COV increment propert y of any BACnet object .
BACnet Int egrat ion Guide M UA_01.001 Rev 2
Page | 5
RELINQUISH DEFAULT SETTINGS BINARY TEXT
When t he Ret urn t o Default funct ion is enabled, t he present value will not overwrite t he relinquish default value and on a loss of power t he controller will boot wit h last saved default values inst ead of last w rit ten values. This must also be enabled for t he BACnet Comm Loss relinquish default t o w ork.
When t he Enable Relinquish Default funct ion is enabled any value in t he priorit y array for binary values or analog values w ill be cleared if a communicat ion loss is det ect ed. All commandable point s will revert t o t he relinquish default value.
Communication loss is det ermined based on t he BM SWat chdog. The wat chdog funct ion must be enabled. The funct ion will execut e 5 minutes aft er t he wat chdog st at us goes inact ive.
This m ay be desired if t he BM Sis running a reset routine on t he set point s and would like t o revert t o a default st at e if communicat ion is lost. It is recommended t o be used wit h ret urn t o default enabled, and a known relinquish default is saved. When t his box is checked by a user, t he controller will write t he present value of variables t o t he relinquish default for all binary and analog value BACnet object s t hat are comm andable. The funct ion operat es in t he background and t akes approximately 30 seconds t o complet e.
This is desired t o save any Test and Balance set t ings adjust ed locally on t he cont roller t o be t he BACnet r elinquish default values. Alt ernatively, t hese values could be read and writ t en t o t he relinquish default variables by t he BM Ssyst em.
If for any reason, t he st ate text is missing from binary objects, checking t his box will cause the controller t o re-writ e t he act ive and inactive t ext values.
BACnet Int egrat ion Guide M UA_01.001 Rev 2
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M UA Reference Tables
STATUS M ODE TABLE
The following analog values can appear in t he point t o t ell the building aut omat ion the current mode of operat ion of the unit . Values may rotat e every t hree seconds.
Analog Value
0 1 2 3 5 6 7 8 9
M ode
Off/ St andby Unoccupied St art Occupied St art Opening Dampers Dampers Open Fan St art Delay Exhaust Fan St art Supply Fan St art St art up Delay
Status M ode Table (AV-41)
Analog Value
M ode
10
Syst em On
11
Soft Shut dow n
12
Syst em Disabled
13
Remot e Of f
14
Syst em Shut down Alarm
18
Unit Of f Flow Act ive
19
Fans Only
20
Eco n o m i zi n g
Analog Value
21 22 30 31 32 33 35 36
M ode
Cooling Heat ing Over r ides Expansion Offline Occupancy Overridden M ax Vent Sequence Act ive M orning Sequence Act ive Wint er Ramp Act ive
ALARM TABLE This table displays the lat est alarm t hat is active in the unit cont roller.
Alarm Table - Latest Alarm (IV-9)
0 No Act ive Alarms
27 IG Furnace 1 Combust Fan High Pressure Sw it ch
1 Supply Fan Run St at us Not Proven
28 IG Furnace 1 Ignit ion Cont roller Alarm
2 Exhaust Fan Run St at us Not Proven
29 IG Furnace 1 Pressure Sw it ch Fault Alarm
3 Filt ers are Dirt y Replace Filt ers
30 IG Furnace 1 Combust Fan Proving Alarm
4 Cond Drain Pan Full Check Drain
31 IG Furnace 1 M ax Retries
5 High Supply Duct St at ic Pressur e
32 IG Furnace 1 High Limit Trip
6 Out side Air Temp Sensor Value Not Valid
33 IG Furnace pCOe 1 Offline
7 Space Temperat ure Sensor Value Not Valid
34 IG Furnace 1 IC Fault Check IC->pCOe Wiring
8 Supply Air Temperat ure Sensor Value Not Valid
35 IG Furnace 1 Combust ion Fan Alarm
9 Out side Air GreenTrol Offline or Flow Error
36 IG Furnace pCOe 2 Offline
10 Hi/ Low Pressure Swit ch Circuit A
37 IG Furnace 2-No Flam e Alarm Aft er 3 Tries
11 Hi/ Low Pressure Swit ch Circuit B
38 IG Furnace 2 M ax Retries
12 Space CO2 Sensor Value Not Valid
39 IG Furnace 2 Ignit ion Cont roller Alarm
13 Ret urn CO2 Sensor Value Not Valid
40 IG Furnace 3-No Flam e Alarm Aft er 3 Tries
14 Space St at ic Pressure Sensor Value Not Valid
41 IG Furnace 3 M ax Retries
15 Supply Duct St at Press Sensor Value Not Valid
42 IG Furnace 3 Ignit ion Cont roller Alarm
16 Supply Air Temperat ure Low Limit Shut down
43 DG Flame Saf eguard General Refer ence
17 Supply Air Temperat ure High Limit Shut down
44 DG Flame Safeguard M anual Reset at FSG
18 Space High St at ic Pres Shut down
45 DG Pilot Flame Alarm Did Not Pr ove
19 BM S Offline Wat chdog is FALSE
46 DG Heat ing Saf ety Check Circuit
20 BACnet License Not Inst alled
47 DG Flame Saf eguard Check Funct ionalit y
21 Space Ther most at 1 Sensor Offline
48 DG Burner Diff erent ial Check Pressure
22 Space Ther most at 2 Sensor Offline
51 M ult i Devices per Ch Cont act Tech Support
23 Space Ther most at 3 Sensor Offline
52 Comp M aint enance Alarm Run Hours Set point Reached
24 Space Ther most at 4 Sensor Offline
54 Non-Volat ile M emory Er Cont act Tech Support
25 IG Furnace 1-No Flam e Alarm Aft er 3 Tries
55 Cooling Exp Boar d pCOe 3 Offline
26 IG Furnace 1 - Large No Flam e Aft er 3 Tries
59 Exp Boar d 4 St at us Board is Offline
BACnet Int egrat ion Guide M UA_01.001 Rev 2
Page | 7
BIT-PACKED INTEGER W ORD TABLES The following t ables are used t o unpack int eger words int o Boolean values.
Bit
Digit al_Out put _W ord
0 Supply Fan St art 1 Exhaust Fan St art 2 Exhaust Relief Enable 3 Compr essor 1 St art
4 Compr essor 2 St art 5 Condenser Fan St art 6 7 Furnace 1 St art 8 Furnace 1 St age 2 St art
9 Furnace 2 St art
10 Furnace 2 St age 2 St art
Digital Output Table (IV-10)
Bit
Digit al_Out put _W ord
Bit
11 Furnace 3 St art
22
12
23
13 Damper Act uat or Power Enable
24
14 Direct Gas St art
25
15 Elect ric Heat St art
26
16 Evaporat ive Cooling Valve Enable
27
17 Evaporat ive Cooling Pump Enable
28
18
29
19
30
20
31
21
Cooling Alarm Table (IV-11)
Bit
Cooling_Alarm_W ord
Bit
Cooling_Alarm_W ord
Bit
0 Circuit A High/ Low Pr essure Swit ch Alarm
11
22
1 Circuit B High/ Low Pr essure Swit ch Alarm
12
23
2
13
24
3
14
25
4
15
26
5
16
27
6
17
28
7
18
29
8
19
30
9
20
31
10
21
Device Offline Table (IV-12)
Bit
Device_Offline_W ord
Bit
Device_Offline_W ord
Bit
0 Space T-St at 1 Offline
11
22
1 Space T-St at 2 Offline
12
23
2 Space T-St at 3 Offline
13
24
3 Space T-St at 4 Offline
14
25
4 IG Furnace Cont roller 1 Offline
15
26
5 IG Furnace Cont roller 2 Offline
16
27
6 Cooling Cont roller Offline
17
28
7 GreenTrol Out side Air Offline
18
29
8 BM S Offline Alarm
19
30
9 Permanent M emory - Too M any Writ es
20
31
10
21
Digit al_Out put _W ord Cooling_Alarm_W ord Device_Offline_W ord
BACnet Int egrat ion Guide M UA_01.001 Rev 2
Page | 8
Bit
Device_Alarm _W ord
0 Supply Fan Alarm
1 Exhaust Fan Alarm
2 Drain Pan Alarm
3 Filt er Alarm
4 GreenTrol OAD AFM S Alarm
5 Out side Air Temp Sensor Alarm
6 Space CO2 Sensor Alarm
7 Supply Air Temp Sensor Alarm
8 Space Temperat ure Sensor Alarm
9 Supply Temp Low Limit Alarm
10 Supply Temp High Limit Alarm
Device Alarms Table (IV-13)
Bit
Device_Alarm _W ord
Bit
11 Supply High Duct St at ic Alarm
22
12 Supply Duct St at ic Sensor Alarm
23
13 Space St at ic Pressure Sensor Alarm
24
14 Space High St at ic Alarm
25
15 Ret urn CO2 Sensor Alarm
26
16
27
17 Shut down Input Alarm
28
18
29
19
30
20
31
21
Device_Alarm _W ord
Bit
Heat ing_Alarm _W ord
0 DG Flame Safeguard General Refer ence
1 DG Flame Safeguard M anual Reset at FSG
2 DG Pilot Flame Alarm Did Not Pr ove
3 DG Heat ing Saf ety Check Circuit
4 DG Flame Safeguard Check Funct ionalit y
5 DG Burner Diff erent ial Check Pressure
6 General IG Furnace Alarm
7 IG Furnace 1 No flame Alarm Aft er 3 Tries
8 IG Furnace 1 Large No Flame Aft er 3 Tries
IG Furnace 1 Combust Fan High Pressure
9
Swit ch
10 IG Furnace 1 Ignit ion Cont roller Alarm
Heating Alarm Table (IV-14)
Bit
Heat ing_Alarm _W ord
11 IG Furnace 1 Pressure Sw it ch Fault Alarm 12 IG Furnace 1 Combust Fan Proving Alarm 13 IG Furnace 1 M ax Retries
14 IG Furnace 1 High Limit Trip
15 IG Furnace 1 IC fault Check Furnace Wiring
16 IG Furnace 1 Combust ion Fan Alarm
17 IG Furnace 2-No Flam e Alarm Aft er 3 Tries
18 IG Furnace 2 M ax Retries 19 IG Furnace 2 Ignit ion Cont roller Alarm
20 IG Furnace 3-No Flam e Alarm Aft er 3 Tries
21 IG Furnace 3 M ax Retries
Bit
Heat ing_Alarm _W ord
22 IG Furnace 3 Ignit ion Cont roller Alarm
23
24
25
26
27
28
29
30
31
Bit
Unit _St at us_W ord
0 Off/ St andby
1 Unoccupied St art
2 Occupied St art
3 Opening Dampers 4 Dampers Open 5 Fan St art Delay 6 Exhaust Fan On
7 Supply Fan On
8 Syst em On 9 Soft Shut dow n 10 Syst em Disabled
Unit Status W ord Table (IV-11)
Bit
Unit _St at us_W ord
11 Remot e Of f
12 Syst em Shut down Alarm
13 Supply Fan Only
14 Exhaust Fan Only 15 Purge M ode (Supply and Exhaust Only) 16 Case Heat Act ive 17 Fans Only
18 Economizing
19 Energy Recovery Act ive 20 Cooling 21 Heat ing
Bit
Unit _St at us_W ord
22 Dehumidifying
23 Hot Gas Reheat Act ive
24 HGRH Purging
25 Dehum w/ Heat 26 Energy Recovery Defrost Act ive 27 Heat Pump Defrost Act ive 28 M orning Warm Up/ Cool Down Act ive
29 Wint er Ramp Act ive
30 31 Overrides Act ive
BACnet Int egrat ion Guide M UA_01.001 Rev 2
Page | 9
BACnet Int egrat ion Guide M UA_01.001 Rev 2
Page | 10
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