The following table lists the available BACnet points for the VRF indoor units (IDUs) as exposed by the VRF Smart Gateway.
BACnet Instance Number |
Object Name |
Object Description |
Object Type |
Contents of Information |
||||||
---|---|---|---|---|---|---|---|---|---|---|
4 |
UNIT-CAP |
Indoor Unit Capacity Code |
AI |
Value |
0 to 255 |
|||||
5 |
UNITEN-MODE |
Unit Enable Mode |
BO |
Setting |
Shutdown |
Enable |
– |
– |
– |
|
6 |
SYSTEM-MODE |
Command System Mode |
MO |
Setting |
Cool |
Dry |
Fan |
Heat |
Auto |
|
7 |
HtClg-REQ |
Heat/Cool Required |
BI |
Status |
False |
True |
– |
– |
– |
|
8 |
SF-SPEED-C |
Commanded Supply Fan Speed |
MO |
Setting |
Low |
Medium |
High |
Auto |
High 2 |
|
9 |
EXPV-% |
Expansion Valve Position |
AI |
Value |
0.0% to 100.0% |
|||||
10 |
LIQ-PIPE-T |
Liquid Pipe Temperature |
AI |
Value |
-50°C to 99°C (-58°F to 210°F) |
|||||
11 |
GAS-PIPE-T |
Gas Pipe Temperature |
AI |
Value |
-50°C to 99°C (-58°F to 210°F) |
|||||
12 |
RA-T |
Return Air Temperature |
AI |
Value |
-50°C to 99°C (-58°F to 210°F) |
|||||
13 |
DA-T |
Discharge Air Temperature |
AI |
Value |
-50°C to 99°C (-58°F to 210°F) |
|||||
14 |
DIFF-T |
Coil Differential Temperature |
AI |
Value |
-127°C to 127°C (-196°F to 260°F) |
|||||
15 |
ZN-SP |
Zone Temperature Setpoint |
AO |
Setting |
As per IDU factory settings. For example, Cool/Fan/Dry modes: 19°C to 30°C/66°F to 86°F) Heat mode: 17°C to 30°C (62°F to 86°F) |
|||||
16 |
RZN-T 1 |
Remote Zone Temperature |
AI |
Value |
-50°C to 99°C (-58°F to 210°F) |
|||||
17 |
COMP to REQ |
Requested Compressor Speed |
AI |
Value |
0 Hz to 255 Hz |
|||||
18 |
UNIT-STOP-CODE |
Unit Stop Code |
AI |
Value |
0 to 255 For information about individual code numbers, refer to the VRF equipment service manual. |
|||||
19 |
ALARM-CODE |
Alarm Code |
AI |
Value |
0 to 255 For information about individual code numbers, refer to the VRF equipment service manual. |
|||||
20 |
RMT-OPT |
Optional Room Thermostat |
BI |
Status |
False |
True |
– |
– |
– |
|
21 |
DEFROST-S |
Defrost Status |
BI |
Status |
False |
True |
– |
– |
– |
|
22 |
REM-CON |
Remote Control Connected |
BI |
Status |
False |
True |
– |
– |
– |
|
23 |
SF-S |
Supply Fan Status |
BI |
Status |
Off |
On |
– |
– |
– |
|
24 |
ALARM-S |
Unit Alarm Status |
BI |
Status |
Normal |
Alarm |
– |
– |
– |
|
25 |
SYSTEM-S |
Actual System Mode |
MI |
Status |
Cool |
Dry |
Fan |
Heat |
Stop |
– |
26 |
SF-SPD |
Actual Supply Fan Speed |
MI |
Status |
Stop |
Low |
Med |
High |
Soft |
High 2 |
27 |
ZN-T 2 |
Zone Temperature |
AI |
Value |
-50°C to 99°C (-58°F to 210°F) |
|||||
28 |
FILT-S |
Filter Status |
BI |
Status |
Clean |
Dirty |
– |
– |
– |
|
29 |
FILT-S-RESET |
Filter Status Reset |
BO |
Setting |
Off |
Reset |
– |
– |
– |
|
30 |
UNIT-LO |
Unit Lockout |
BO |
Setting |
Unlock |
Lock |
– |
– |
– |
|
31 |
FANCMD-LO |
Fan Command Lockout |
BO |
Setting |
Unlock |
Lock |
– |
– |
– |
|
32 |
SYSMODE-LO |
System Mode Lockout |
BO |
Setting |
Unlock |
Lock |
– |
– |
– |
|
33 |
ZNSP-LO |
Zone Temperature Setpoint Lockout |
BO |
Setting |
Unlock |
Lock |
– |
– |
– |
|
34 |
FANSPD-LO |
Fan Speed Lockout |
BO |
Setting |
Unlock |
Lock |
– |
– |
– |
|
35 |
LOUVER-LO |
Louver Position Lockout |
BO |
Setting |
Unlock |
Lock |
– |
– |
– |
The following table lists the IDU multi-state values for SYSTEM-MODE and SYSTEM-S.
State Value |
State String |
---|---|
1 |
Cool |
2 |
Dry |
3 |
Fan |
4 |
Heat |
5 |
Auto |
State Value |
State String |
---|---|
1 |
Cool |
2 |
Dry |
3 |
Fan |
4 |
Heat |
5 |
Stop |
The following table lists the IDU multi-state values for SF-SPEED-C and SF-SPD.
State Value |
State String |
---|---|
1 |
Low |
2 |
Med |
3 |
High |
4 |
Auto |
5 |
High2 |
State Value |
State String |
---|---|
1 |
Stop |
2 |
Low |
3 |
Med |
4 |
High |
5 |
Soft |
6 |
High2 |
The following table lists the available BACnet points for the VRF outdoor units (ODUs) as exposed by the VRF Smart Gateway.
BACnet Instance Number |
Object Name |
Object Description |
Object Type |
Contents of Information |
||||
---|---|---|---|---|---|---|---|---|
3 |
ALARM-CODE |
Alarm Code |
AI |
Value |
0 to 255 For information about individual code numbers, refer to the VRF equipment service manual. |
|||
6 |
SYSTEM-MODE |
System Mode |
MI |
Status |
None |
Heat |
Cool |
Auto |
7 |
SYSTEM-S |
System Status |
MI |
Status |
Refer to Table 8 |
|||
8 |
HX-STATE |
Heat Exchanger State |
MI |
Status |
Refer to Table 9 |
|||
9 |
INV-STATE |
Inverter State |
MI |
Status |
Refer to Table 10 |
|||
10 |
FAN-STATE |
Fan Controller State |
MI |
Status |
Refer to Table 10 |
|||
11 |
INV-HRS |
Inverter Compressor 1 Runtime |
AI |
Value |
0 Hours to 655,350 Hours |
|||
12 |
INV2-HRS |
Inverter Compressor 2 Runtime |
AI |
Value |
0 Hours to 655,350 Hours |
|||
13 |
INV-FREQ |
Inverter Compressor Frequency |
AI |
Value |
0 Hz to 255 Hz |
|||
14 |
TOTAL-FREQ |
Total Frequency |
AI |
Value |
0 Hz to 65,535 Hz |
|||
15 |
FAN-% |
Outdoor Fan Output |
AI |
Value |
0% to 100% |
|||
16 |
EXPV-% |
Expansion Valve Position |
AI |
Value |
0% to 100% |
|||
17 |
BYPEXPV-% |
Bypass Expansion Valve Position |
AI |
Value |
0% to 100% |
|||
18 |
DISCH-P |
Discharge Pressure |
AI |
Value |
0 psi to 3,698.5 psi |
|||
19 |
SUCT-P |
Suction Pressure |
AI |
Value |
0 psi to 369.8 psi |
|||
20 |
OA-T |
Outside Air Temperature |
AI |
Value |
-50°C to 99°C (-58°F to 210°F) |
|||
21 |
INV2ND-A |
Inverter Compressor Secondary Current |
AI |
Value |
0 A to 127.0 A |
|||
22 |
INVPRI-A |
Inverter Compressor Primary Current |
AI |
Value |
0 A to 127.0 A |
|||
23 |
INVPRI2-A |
Inverter Compressor Top 2 Temperature |
AI |
Value |
0 A to 127.0 A |
|||
24 |
INVTOP-T |
Inverter Compressor Top Temperature |
AI |
Value |
0°C to 99°C (32°F to 210°F) |
|||
25 |
INVTOP2-T |
Inverter Compressor Top 2 Temperature |
AI |
Value |
0°C to 99°C (32°F to 210°F) |
|||
26 |
PROT-CODE |
Protection Code |
MI |
Status |
Refer to Table 11 |
|||
27 |
DEFROST-S |
Defrost Status |
BI |
Status |
Off |
On |
– |
|
28 |
EMERGRUN-S |
Emergency Run Status |
BI |
Status |
Off |
On |
– |
|
29 |
INV-S |
Inverter Status |
BI |
Status |
Stop |
Run |
– |
|
30 |
FAN-S |
Fan Status |
BI |
Status |
Stop |
Run |
– |
|
81 |
HX2-STATE |
Heat Exchanger 2 State |
MI |
Value |
Refer to Table 12 |
|||
82 |
INV2-STATE |
Inverter 2 State |
MI |
Value |
Refer to Table 13 |
|||
83 |
FAN2-STATE |
Fan Controller 2 State |
MI |
Value |
Refer to Table 14 |
|||
84 |
INV2-FREQ |
Inverter Compressor 2 Frequency |
AI |
Value |
0 Hz ~ 255 Hz |
|||
85 |
EXPV2-% |
Expansion Value Position 2 |
AI |
Value |
0 Hz ~ 100% |
|||
86 |
INV2ND2-A |
Inverter Compressor Secondary Current |
AI |
Value |
0 Hz ~ 127 A |
|||
87 |
INV2-S |
Inverter 2 Status |
BI |
Status |
Stop |
Run |
- |
- |
88 |
FAN2-S |
Fan 2 Status |
BI |
Status |
Stop |
Run |
- |
- |
The following table lists the ODU multi-state values for SYSTEM-MODE.
State Value |
State String |
---|---|
1 |
None |
2 |
Heat |
3 |
Cool |
4 |
Auto |
The following table lists the ODU multi-state values for SYSTEM-S.
State Value |
State String |
---|---|
1 |
Stop |
2 |
Thermo off |
3 |
Pump down |
4 |
SW on start |
5 |
Thermo on start |
6 |
After defrost |
7 |
Start control 1 |
8 |
Start control 2 |
9 |
Normal |
10 |
Oil return |
11 |
Defrost ready 1 |
12 |
Defrost ready 2 |
13 |
Differential pressure control |
14 |
Defrost |
The following table lists the ODU multi-state values for HX-STATE.
State Value |
State String |
---|---|
0 |
None |
1 |
Evaporator Mode Low Pressure |
2 |
Condenser Mode High Pressure |
3 |
Evaporator Mode |
4 |
Condenser Mode |
The following table lists the ODU multi-state values for INV-STATE and FAN-STATE.
State Value |
State String |
---|---|
1 |
Normal stop |
2 |
IPM Fault |
3 |
Over current |
4 |
Fin temp |
5 |
Electronic thermal |
6 |
Undervoltage |
7 |
Overvoltage |
8 |
Communication error |
9 |
Current sensor abnormality |
10 |
Instantaneous power failure |
11 |
Na0 |
12 |
MPU reset |
13 |
Earth fault voltage |
14 |
Phase loss |
15 |
Na1 |
16 |
Reverse Driving |
17 |
INV is inoperative |
18 |
Control error |
19 |
Detect 63H |
20 |
63H detection circuit error |
21 |
63H early return |
22 |
Loss of synchronism |
23 |
Setting error |
24 |
Na2 |
25 |
Na3 |
26 |
Speed setting error |
27 |
Constant speed |
28 |
Normal acceleration |
29 |
Normal deceleration |
30 |
Acceleration after Overload |
31 |
Deceleration after Overload |
32 |
Constant speed after Overload |
33 |
Na4 |
34 |
Na5 |
35 |
Power supply unbalance |
36 |
Na6 |
37 |
Forced deceleration |
38 |
Prohibit Increase |
39 |
Reverse drive in |
The following table lists the ODU multi-state values for PROT-CODE.
State Value |
State String |
---|---|
1 |
None |
2 |
Pressure Ratio Control |
3 |
High Pressure Rise Protect |
4 |
Inv Current Protect |
5 |
Inv Fin Temp Rise Protect |
6 |
Compressor Top Overheat Protect |
7 |
Low Pressure Decrease Protect |
8 |
Na1 |
9 |
Na2 |
10 |
High Pressure Decrease Protect |
11 |
Demand Current Control |
12 |
Na3 |
13 |
Na4 |
14 |
Low Pressure Rise Protect |
15 |
Na5 |
16 |
Na6 |
17 |
Na7 |
18 |
Pressure Ratio Decrease Retry |
19 |
Low Pressure Rise Retry |
20 |
High Pressure Rise Retry |
21 |
Overcurrent Retry |
22 |
Vacuum Temp Increase Retry |
23 |
Vacuum Temp Decrease Retry |
24 |
Inverter Trip Retry |
25 |
Retry Related to inverter |
26 |
Na8 |
27 |
Na9 |
28 |
Na10 |
29 |
Na11 |
30 |
Na12 |
31 |
Na13 |
32 |
Na14 |
33 |
Na15 |
34 |
Na16 |
35 |
Na17 |
36 |
Na18 |
37 |
Na19 |
38 |
Na20 |
39 |
High Pressure Decrease Retry |
The following table lists the ODU custom enum values for Heat Exchanger 2 Status.
MetasysEnum Value | MetasysEnum String |
---|---|
1 |
None |
2 |
Evaporator Mode Low Pressure |
3 |
Condenser Mode High Pressure |
4 |
Evaporator Mode |
5 |
Condenser Mode |
The following table lists the ODU custum enum values for Inverter 2 status.
MetasysEnum Value | MetasysEnum String |
---|---|
1 |
Normal stop |
2 |
IPM Fault |
3 |
Over current |
4 |
Fin temp |
5 |
Electronic thermal |
6 |
Undervoltage |
7 |
Overvoltage |
8 |
Communication error |
9 |
Current sensor abnormality |
10 |
Instantaneous power failure |
11 |
Na0 |
12 |
MPU reset |
13 |
Earth fault voltage |
14 |
Phase loss |
15 |
Na1 |
16 |
Reverse Driving |
17 |
INV is inoperative |
18 |
Control error |
19 |
Detect 63H |
20 |
63H detection circuit error |
21 |
63H early return |
22 |
Loss of synchronism |
23 |
Setting error |
24 |
Na2 |
25 |
Na3 |
26 |
Speed setting error |
27 |
Constant speed |
28 |
Normal acceleration |
29 |
Normal deceleration |
30 |
Acceleration after Overload |
31 |
Deceleration after Overload |
32 |
Constant speed after Overload |
33 |
Na4 |
34 |
Na5 |
35 |
Power supply unbalance |
36 |
Na6 |
37 |
Forced deceleration |
38 |
Prohibit Increase |
39 |
Reverse drive in |
The following table lists the ODU custom enum values for FAN 2 status.
MetasysEnum Value | MetasysEnum String |
---|---|
1 | Normal stop |
2 | IPM Fault |
3 | Over current |
4 | Fin temp |
5 | Electronic thermal |
6 | Undervoltage |
7 | Overvoltage |
8 | Communication error |
9 | Current sensor abnormality |
10 | Instantaneous power failure |
11 | Na0 |
12 | MPU reset |
13 | Earth fault voltage |
14 | Phase loss |
15 | Na1 |
16 | Reverse Driving |
17 | INV is inoperative |
18 | Control error |
19 | Detect 63H |
20 | 63H detection circuit error |
21 | 63H early return |
22 | Loss of synchronism |
23 | Setting error |
24 | Na2 |
25 | Na3 |
26 | Speed setting error |
27 | Constant speed |
28 | Normal acceleration |
29 | Normal deceleration |
30 | Acceleration after Overload |
31 | Deceleration after Overload |
32 | Constant speed after Overload |
33 | Na4 |
34 | Na5 |
35 | Power supply unbalance |
36 | Na6 |
37 | Forced deceleration |
38 | Prohibit Increase |
39 | Reverse drive in |
The following table lists the IDU points used for Lockout commands and their meaning
IDU point on Metasys | Function |
---|---|
FANCMD-LO | For prohibiting unit On/Off setting from the remote controller |
FANSPD-LO | For prohibiting fan speed setting from the remote controller |
SYSMODE-LO | For prohibiting mode setting from the remote controller |
ZNSP-LO | For prohibiting temperature set point setting from the remote controller |
LOUVER-LO | For prohibiting the louver setting from the remote controller |
UNIT-LO |
For prohibiting all the above settings from the remote controller |