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Unit ventilator (terminal unit) controller · BACnet points list
Siemens BACnet PTEC Unit Vent Controller - Application 6677 (Heating and DX Cooling, ASHRAE Cycles I and II) BACnet points list
Updated 28 October 2026
Application 6677 controls a unit ventilator with DX cooling to ASHRAE Cycles I and II on a Siemens BACnet PTEC controller over BACnet MS/TP. In heating a room loop resets the discharge air setpoint (DISCH STPT between DSH MIN TEMP and DSH MAX TEMP) and the heating valve, face-bypass damper or electric stages hold it; in cooling the DX stage cycles with minimum on/off times. It also drives the outdoor air damper, auxiliary radiation, morning warm-up/cool-down, night override and free cooling.
This page lists 101 BACnet objects for the Siemens BACnet PTEC Unit Vent Controller - Application 6677 (Heating and DX Cooling, ASHRAE Cycles I and II) — 88 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Siemens’s own free documentation, linked below.
- Manufacturer
- Siemens
- Model
- BACnet PTEC Unit Vent Controller - Application 6677 (Heating and DX Cooling, ASHRAE Cycles I and II)
- Equipment
- Unit ventilator (terminal unit) controller
- Equipment type
- VAV boxes & fan coils
- BACnet objects
- 101 (88 writable)
- Transport
- BACnet MS/TP
- Firmware
- Newer than revision Bx40
- Also known as
- PTEC 6677, Application 6677, App 6677, 550-493PA, Siemens unit ventilator DX, ASHRAE Cycle II
BMS integration notes: Siemens BACnet PTEC Unit Vent Controller - Application 6677 (Heating and DX Cooling, ASHRAE Cycles I and II)
Address the controller on the BACnet MS/TP trunk (manually or with auto addressing), then release the unit to application control. The BMS commands occupancy with DAY.NGT (BO 29) and the day setpoints, turns free cooling on and off with FREE CLG (BO 23), and reads room temperature, fan and DX status, discharge air temperature, outdoor air damper position, the low temperature detector and the error status.
Minimum points to map
The short list most integrators start with — enough to run the unit from a BMS. Map more as the job needs.
| Object | Name | Why | Access |
|---|---|---|---|
| BO 29 | DAY.NGT | DAY = occupied, NIGHT = unoccupied | Command |
| BO 23 | FREE CLG | Free cooling / economizer enable | Command |
| AO 6 | DAY CLG STPT | Occupied cooling setpoint, °F | Command |
| AO 7 | DAY HTG STPT | Occupied heating setpoint, °F | Command |
| BO 5 | HEAT.COOL | Current mode: HEAT or COOL | Command |
| BO 50 | FAN | Fan on/off | Command |
| BO 44 | DX | DX cooling on/off | Command |
| AI 4 | ROOM TEMP | Space temperature | Read |
| BI 26 | LOW TEMP DET | Low temperature detection thermostat | Read |
| AO 99 | ERROR STATUS | Controller error code | Command |
Enable & remote start
Occupancy is DAY.NGT (BO 29). With a wall switch on DI 2 and WALL SWITCH (BO 18) = YES, the switch sets it; standalone with no switch the controller stays in day mode; on a network the field panel or BMS commands DAY.NGT. NGT OVRD (BO 21) shows a temporary night override from the room unit button.
Sensors & values from the BMS
The field panel (or PPCL) turns the free cooling/economizer function on and off by writing FREE CLG (BO 23).
Network setup
- BACnet MS/TP only. CTLR ADDRESS (AO 1) holds the MS/TP address; the factory value is 255.
- APPLICATION (AO 2) holds the application number; the point table lists its factory default as 6695.
Watch out for
- As shipped, the controller keeps all equipment OFF until it is released to application control (see Siemens start-up procedures).
- With a digital room unit (revision 26 and later), a command sent through the room unit puts the matching BACnet input Out Of Service.
- Loop gains, biases, output span/start settings and setup codes are commissioning values; don't write them from the BMS routinely.
- A low temperature detection thermostat on BI 26 is strongly recommended for hot water and steam coils.
- If the discharge air sensor fails, heat goes off and the outdoor air damper closes (or the unit shuts down); temperature control stops until it returns.
Siemens BACnet PTEC Unit Vent Controller - Application 6677 (Heating and DX Cooling, ASHRAE Cycles I and II) BACnet objects
Type: AI, AO, AV, BI, BO, BV, MI/MO/MV (multi-state) · Access: Read read-only, Write writable, Command writable with a priority array.
Note: the source document has no read/write column, so access here is inferred from the object type (inputs read-only, values writable). Confirm on the live controller before writing.
| Description | States | |||||
|---|---|---|---|---|---|---|
| AO | 1 | CTLR ADDRESS | Controller MS/TP address | Command | ||
| AO | 2 | APPLICATION | Application number running in the controller | Command | ||
| AO | 3 | TEMP OFFSET | Room temperature calibration offset | °F | Command | |
| AImin | 4 | ROOM TEMP | Room temperature from the room unit | °F | Read | |
| BOmin | 5 | HEAT.COOL | Current heating/cooling mode | Command | 0=COOL, 1=HEAT | |
| AOmin | 6 | DAY CLG STPT | Day (occupied) cooling setpoint | °F | Command | |
| AOmin | 7 | DAY HTG STPT | Day (occupied) heating setpoint | °F | Command | |
| AO | 8 | NGT CLG STPT | Night (unoccupied) cooling setpoint | °F | Command | |
| AO | 9 | NGT HTG STPT | Night (unoccupied) heating setpoint | °F | Command | |
| AO | 10 | OADPR MINPOS | Outdoor air damper minimum position | % | Command | |
| AO | 11 | RM STPT MIN | Lowest setpoint allowed from the room unit | °F | Command | |
| AO | 12 | RM STPT MAX | Highest setpoint allowed from the room unit | °F | Command | |
| AI | 13 | RM STPT DIAL | Setpoint from the room unit dial or keypad | °F | Read | |
| BO | 14 | STPT DIAL | Use the room unit setpoint dial | Command | 0=NO, 1=YES | |
| AI | 15 | DISCH TEMP | Discharge air temperature | °F | Read | |
| BO | 17 | FBP.MODVALVE | Coil control: face-bypass damper or modulating valve | Command | 0=VALVE, 1=FBP | |
| BO | 18 | WALL SWITCH | Wall switch connected to DI 2 | Command | 0=NO, 1=YES | |
| BI | 19 | DI OVRD SW | Room unit night override button | Read | 0=OFF, 1=ON | |
| AO | 20 | OVRD TIME | Night override duration | h | Command | |
| BO | 21 | NGT OVRD | Night override status | Command | 0=DAY, 1=NIGHT | |
| BO | 22 | AUX.NOAUX | Auxiliary radiation used (AUX) or not | Command | 0=NOAUX, 1=AUX | |
| BOmin | 23 | FREE CLG | Free cooling (economizer) enable | Command | 0=DISABL, 1=ENABLE | |
| BI | 24 | DI 2 | Digital input 2 | Read | 0=OFF, 1=ON | |
| BI | 25 | DI 5 | Digital input 5 | Read | 0=OFF, 1=ON | |
| BImin | 26 | LOW TEMP DET | Low temperature detection thermostat (LTDT) | Read | 0=ON, 1=OFF | |
| BO | 27 | ELEC.NOELEC | Heating coil is electric (ELEC) or not | Command | 0=NOELEC, 1=ELEC | |
| BO | 28 | FBP.2PSVCTL | 2-position valve control with face-bypass damper | Command | 0=DISABL, 1=ENABLE | |
| BOmin | 29 | DAY.NGT | Day/night (occupancy) mode | Command | 0=DAY, 1=NIGHT | |
| BO | 30 | WRMUP.COOLDN | Morning warm-up / cool-down | Command | 0=OFF, 1=ON | |
| AO | 31 | AOV1 SPAN | AOV1 output span | V | Command | |
| AO | 32 | AOV1 START | AOV1 output start voltage | V | Command | |
| AO | 33 | AOV2 SPAN | AOV2 output span | V | Command | |
| AO | 34 | AOV2 START | AOV2 output start voltage | V | Command | |
| AO | 35 | AOV3 SPAN | AOV3 output span | V | Command | |
| AO | 36 | AOV3 START | AOV3 output start voltage | V | Command | |
| AO | 37 | AO DIR.REV | Analog output direction reverse (additive code) | Command | ||
| AO | 38 | AOV1 | Analog output 1 (0-10 V) | V | Command | |
| AO | 39 | AOV2 | Analog output 2 (0-10 V) | V | Command | |
| AO | 40 | AOV3 | Analog output 3 (0-10 V) | V | Command | |
| BO | 41 | AUX RAD | Auxiliary radiation output (contact or 2-position valve) | Command | 0=OFF, 1=ON | |
| BO | 42 | DO 2 | Digital output 2 | Command | 0=OFF, 1=ON | |
| BO | 43 | HTG 2POS VLV | 2-position heating valve output | Command | 0=OFF, 1=ON | |
| BOmin | 44 | DX | DX cooling output | Command | 0=OFF, 1=ON | |
| BO | 45 | EHEAT 1 | Electric heat stage 1 output | Command | 0=OFF, 1=ON | |
| BO | 46 | EHEAT 2 | Electric heat stage 2 output | Command | 0=OFF, 1=ON | |
| BO | 47 | EHEAT 3 | Electric heat stage 3 output | Command | 0=OFF, 1=ON | |
| AI | 48 | AI 3 | Spare analog input 3 | % | Read | |
| AI | 49 | AUX TEMP AI4 | Auxiliary temperature input on AI 4 | °F | Read | |
| BOmin | 50 | FAN | Fan command | Command | 0=OFF, 1=ON | |
| BI | 51 | DI 3 | Digital input 3 | Read | 0=OFF, 1=ON | |
| BI | 52 | DI 4 | Digital input 4 | Read | 0=OFF, 1=ON | |
| BO | 53 | NGT HW HTG | Hot water coil at night (YES) or steam (NO) | Command | 0=NO, 1=YES | |
| BO | 54 | NGT CLG MODE | Cooling allowed in night mode | Command | 0=NO, 1=YES | |
| AO | 55 | AUX OUTPUT | Auxiliary radiation output | % | Command | |
| AO | 57 | AUX HTG TIME | Auxiliary radiation cycle time | min | Command | |
| AO | 58 | EHT STG DELY | Minimum time between electric heat stage changes | s | Command | |
| AO | 59 | DO DIR.REV | Digital output direction reverse (additive code) | Command | ||
| AO | 60 | HTG OUTPUT | Heating coil output | % | Command | |
| AO | 61 | CLG OUTPUT | Cooling coil output | % | Command | |
| AO | 62 | OA DMPR POS | Outdoor air damper position | % | Command | |
| AO | 63 | CLG P GAIN | Cooling loop proportional gain | Command | ||
| AO | 64 | CLG I GAIN | Cooling loop integral gain | Command | ||
| AO | 65 | CLG D GAIN | Cooling loop derivative gain | Command | ||
| AO | 66 | CLG BIAS | Cooling loop bias | % | Command | |
| AO | 67 | HTG P GAIN | Heating loop proportional gain | Command | ||
| AO | 68 | HTG I GAIN | Heating loop integral gain | Command | ||
| AO | 69 | HTG D GAIN | Heating loop derivative gain | Command | ||
| AO | 70 | HTG BIAS | Heating loop bias | % | Command | |
| AO | 71 | ROOM P GAIN | Room loop proportional gain | Command | ||
| AO | 72 | ROOM I GAIN | Room loop integral gain | Command | ||
| AO | 73 | ROOM D GAIN | Room loop derivative gain | Command | ||
| AO | 74 | ROOM BIAS | Room loop bias | °F | Command | |
| AO | 75 | CMP MIN OFF | Compressor minimum off time | min | Command | |
| AO | 76 | CMP MIN ON | Compressor minimum on time | min | Command | |
| AO | 77 | AUX LOOPOUT | Auxiliary radiation loop output | % | Command | |
| AO | 78 | CTL TEMP | Temperature the controller is controlling to | °F | Command | |
| AO | 79 | CLG LOOPOUT | Cooling loop output | % | Command | |
| AO | 80 | HTG LOOPOUT | Heating loop output | % | Command | |
| AO | 81 | AUX P GAIN | Auxiliary loop proportional gain | Command | ||
| AO | 82 | AUX I GAIN | Auxiliary loop integral gain | Command | ||
| AO | 83 | AUX D GAIN | Auxiliary loop derivative gain | Command | ||
| AO | 84 | AUX BIAS | Auxiliary loop bias | % | Command | |
| AO | 85 | SWITCH LIMIT | Loop output below which mode may switch | % | Command | |
| AO | 86 | SWITCH TIME | Minimum time before heat/cool switchover | min | Command | |
| AO | 88 | NGT DBAND | Night mode fan deadband | °F | Command | |
| AO | 89 | MORN DBAND | Morning warm-up / cool-down deadband | °F | Command | |
| AO | 90 | SWITCH DBAND | Temperature deadband for heat/cool switchover | °F | Command | |
| AO | 91 | AUX DSH STPT | Discharge setpoint reference for auxiliary radiation | °F | Command | |
| AO | 92 | CTL STPT | Active control setpoint | °F | Command | |
| AO | 93 | DISCH STPT | Discharge air setpoint, reset by the room loop | °F | Command | |
| AO | 94 | DSH MIN TEMP | Lowest discharge air setpoint allowed | °F | Command | |
| AO | 95 | DSH MAX TEMP | Highest discharge air setpoint allowed | °F | Command | |
| AO | 98 | LOOP TIME | Control loop interval | s | Command | |
| AOmin | 99 | ERROR STATUS | Controller error status code | Command | ||
| AO | 106 | STPT SPAN | Room unit setpoint adjustment span | °F | Command | |
| AO | 121 | DEW POINT | Room dew point | °F | Command | |
| AO | 122 | ENTHALPY | Room enthalpy | Btu/lb | Command | |
| AO | 124 | SENSOR SEL | Room unit / sensor select code (additive) | Command | ||
| AI | 125 | RM CO2 | Room CO2 | ppm | Read | |
| AI | 126 | RM RH | Room relative humidity | % | Read | |
| BO | 127 | PPCL STATE | PPCL program loaded or empty | Command | 0=EMPTY, 1=LOADED |
No points match these filters.
Integration notes
- AI and BI objects are read-only. AO and BO objects are BACnet output objects with a priority array; the guide has no access column, so access is inferred from object type. Many AOs are calculated status values, not commands.
- Instances shown in braces in the guide may be unbundled at a field panel; that marking is not reproduced here.
- Units are given in US units (°F, Btu/lb); the guide also lists SI factory defaults.
- The guide covers controllers with firmware newer than revision Bx40; older firmware has separate documentation.
- LOW TEMP DET (BI 26) state texts are printed as Active = OFF and Inactive = ON; they are kept as printed.
- Cooling-only units are run by holding HEAT.COOL at COOL.
Check it against the live device. A points list tells you what the controller can expose; the unit in front of you may differ by firmware or installed options. Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the BACnet PTEC Unit Vent Controller - Application 6677 (Heating and DX Cooling, ASHRAE Cycles I and II) and exports what it actually has to Excel — free. New to BACnet? Start with what a BACnet points list is and what the object types mean.
Questions about the Siemens BACnet PTEC Unit Vent Controller - Application 6677 (Heating and DX Cooling, ASHRAE Cycles I and II)
How many BACnet points does the Siemens BACnet PTEC Unit Vent Controller - Application 6677 (Heating and DX Cooling, ASHRAE Cycles I and II) have?
This list has 101 BACnet objects: 7 analog inputs, 66 analog outputs, 6 binary inputs, 22 binary outputs. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Siemens BACnet PTEC Unit Vent Controller - Application 6677 (Heating and DX Cooling, ASHRAE Cycles I and II) BACnet points are writable?
88 of the 101 objects accept a write. Points marked Command have a priority array: a write holds until it is released, so release it back to automatic when you are done. The source has no read/write column, so this is inferred from object type.
Where is the official Siemens BACnet PTEC Unit Vent Controller - Application 6677 (Heating and DX Cooling, ASHRAE Cycles I and II) BACnet documentation?
The source is BACnet PTEC Controller Unit Vent - Heating and DX Cooling, ASHRAE Cycles I and II, Application 6677, Application Note (140-1182), revision 2018-01-23, published free by Siemens at https://sid.siemens.com/api/khub/documents/MFVQZau2lm3VGnPJvGYXgQ/content.
What are the minimum BACnet points to integrate the Siemens BACnet PTEC Unit Vent Controller - Application 6677 (Heating and DX Cooling, ASHRAE Cycles I and II)?
Start with BO 29 DAY.NGT (DAY = occupied, NIGHT = unoccupied); BO 23 FREE CLG (Free cooling / economizer enable); AO 6 DAY CLG STPT (Occupied cooling setpoint, °F); AO 7 DAY HTG STPT (Occupied heating setpoint, °F); BO 5 HEAT.COOL (Current mode: HEAT or COOL); BO 50 FAN (Fan on/off); BO 44 DX (DX cooling on/off); AI 4 ROOM TEMP (Space temperature); BI 26 LOW TEMP DET (Low temperature detection thermostat); AO 99 ERROR STATUS (Controller error code).
How do I enable BMS control of the Siemens BACnet PTEC Unit Vent Controller - Application 6677 (Heating and DX Cooling, ASHRAE Cycles I and II)?
Occupancy is DAY.NGT (BO 29). With a wall switch on DI 2 and WALL SWITCH (BO 18) = YES, the switch sets it; standalone with no switch the controller stays in day mode; on a network the field panel or BMS commands DAY.NGT. NGT OVRD (BO 21) shows a temporary night override from the room unit button.
Can the BMS supply sensor values to the Siemens BACnet PTEC Unit Vent Controller - Application 6677 (Heating and DX Cooling, ASHRAE Cycles I and II)?
The field panel (or PPCL) turns the free cooling/economizer function on and off by writing FREE CLG (BO 23).
How do I check these points on the real BACnet PTEC Unit Vent Controller - Application 6677 (Heating and DX Cooling, ASHRAE Cycles I and II)?
Scan the network with a BACnet IP browser such as Easy BACnet, open the device and compare its object list with this table. Anything missing is usually an option that isn't installed or a point that is disabled in the controller's configuration.
More Siemens BACnet points lists
- VAV terminal unit controller
Siemens BACnet ATEC VAV Controller - Application 6630 (VAV Cooling Only)
Pressure-independent cooling-only single-duct VAV boxes on the Siemens BACnet ATEC actuating terminal equipment controller (550-430PA / 550-431PA).
Also known as: ATEC 6630, Application 6630, App 6630, 550-430PA, 550-431PA - VAV terminal unit controller
Siemens BACnet ATEC VAV Controller - Application 6631 (VAV Cooling and Heating, Changeover)
Pressure-independent single-duct VAV boxes on changeover systems (cool air in cooling, warm air in heating) on the Siemens BACnet ATEC controller (550-430PA / 550-431PA).
Also known as: ATEC 6631, Application 6631, App 6631, 550-430PA, 550-431PA - VAV terminal unit controller
Siemens BACnet ATEC VAV Controller - Application 6632 (VAV with Electric Heat or Baseboard Radiation)
Single-duct VAV boxes with up to three stages of electric reheat, or baseboard / perimeter heat (electric or 2-position valve), on the Siemens BACnet ATEC controller (550-430PA / 550-431PA).
Also known as: ATEC 6632, Application 6632, App 6632, 550-430PA, 550-431PA - VAV terminal unit controller
Siemens BACnet ATEC VAV Controller - Application 6633 (VAV with Hot Water Heat)
Single-duct VAV boxes with one or two hot water reheat valves (floating or 0-10 V) on the Siemens BACnet ATEC controller (550-430PA / 550-431PA).
Also known as: ATEC 6633, Application 6633, App 6633, 550-430PA, 550-431PA - Fan-powered VAV terminal unit controller
Siemens BACnet ATEC VAV Controller - Application 6635 (Series Fan with Hot Water Reheat)
Series fan-powered VAV boxes with a hot water reheat valve on the Siemens BACnet ATEC controller (550-430PA / 550-431PA).
Also known as: ATEC 6635, Application 6635, App 6635, 550-430PA, 550-431PA - Fan-powered VAV terminal unit controller
Siemens BACnet ATEC VAV Controller - Application 6637 (Parallel Fan with Hot Water Reheat)
Parallel fan-powered VAV boxes with a hot water reheat valve on the Siemens BACnet ATEC controller (550-430PA / 550-431PA).
Also known as: ATEC 6637, Application 6637, App 6637, 550-430PA, 550-431PA - Fan-powered VAV terminal unit controller
Siemens BACnet ATEC VAV Controller - Applications 6634/6636 (Series or Parallel Fan with Electric Heat)
Series (6634) or parallel (6636) fan-powered VAV boxes with up to three stages of electric heat on the Siemens BACnet ATEC controller (550-430PA / 550-431PA).
Also known as: ATEC 6634, ATEC 6636, Application 6634, Application 6636, App 6634, App 6636, 550-430PA, 550-431PA - Constant volume terminal unit controller
Siemens BACnet PTEC Constant Volume Controller - Application 6660 (Constant Volume Cooling Only)
Cooling-only constant volume terminal boxes on the Siemens BACnet PTEC constant volume controller 550-498PA.
Also known as: PTEC 6660, Application 6660, App 6660, 550-498PA, Siemens constant volume box - Constant volume terminal unit controller
Siemens BACnet PTEC Constant Volume Controller - Application 6662 (Constant Volume with Electric Heat)
Constant volume terminal boxes with up to three stages of electric reheat on the Siemens BACnet PTEC constant volume controller 550-498PA.
Also known as: PTEC 6662, Application 6662, App 6662, 550-498PA, Siemens constant volume electric reheat - Constant volume terminal unit controller
Siemens BACnet PTEC Constant Volume Controller - Application 6663 (Constant Volume with Hot Water Heat)
Constant volume terminal boxes with an airflow sensor and a hot water reheat valve on the Siemens BACnet PTEC constant volume controller 550-498PA.
Also known as: PTEC 6663, Application 6663, App 6663, 550-498PA, Siemens constant volume box, CAV box - Dual duct VAV terminal unit controller
Siemens BACnet PTEC Dual Duct Controller - Application 6667 (2 Air Velocity Sensors, VAV Two Inlets, Optional Reheat)
Dual duct VAV boxes with an air velocity sensor in each inlet and optional hot water or electric reheat on the Siemens BACnet PTEC dual duct controller 550-497PA.
Also known as: PTEC 6667, Application 6667, App 6667, 550-497PA, Siemens dual duct VAV - Dual duct VAV terminal unit controller
Siemens BACnet PTEC Dual Duct Controller - Application 6669 (2 Air Velocity Sensors, VAV Changeover)
Dual duct VAV boxes with hot and cold duct dampers, two air velocity sensors and optional hot water or electric reheat on the Siemens BACnet PTEC controller 550-497PA.
Also known as: PTEC 6669, Application 6669, App 6669, 550-497PA, Siemens dual duct VAV - Heat pump unit controller
Siemens BACnet PTEC Heat Pump Controller - Application 6673 (Multi-Compressor, Mixed Air, Reversing Valve)
Water-to-air and other packaged heat pumps with up to three compressors, a reversing valve, optional electric heat and mixed air damper on the Siemens BACnet PTEC heat pump multi-stage controller 550-490PA.
Also known as: PTEC 6673, Application 6673, App 6673, 550-490PA, Siemens PTEC heat pump, Application 2583 - Heat pump unit controller
Siemens BACnet PTEC Heat Pump Controller - Application 6674 (Multiple Heating and Cooling, Mixed Air, Internal Reversing Valve)
Heat pumps with an internally controlled reversing valve, up to two heating and two cooling compressor outputs, optional electric heat and mixed air damper, on the Siemens BACnet PTEC heat pump multi-stage controller 550-490PA; also small air handlers with 2-position heating and cooling.
Also known as: PTEC 6674, Application 6674, App 6674, 550-490PA, Siemens PTEC heat pump, Application 2584 - VAV terminal unit controller
Siemens BACnet PTEC Unit Conditioner - Application 6642 (VAV Pressure Dependent Cooling or Heating)
Pressure-dependent VAV boxes (no airflow sensor) that get cool or warm supply air from the air handler, on the Siemens BACnet PTEC unit conditioner controller 550-496PA.
Also known as: PTEC 6642, Application 6642, App 6642, 550-496PA, Siemens pressure dependent VAV - Pressure-dependent VAV terminal unit controller
Siemens BACnet PTEC Unit Conditioner - Application 6643 (VAV Pressure Dependent with Hot Water Heat)
Pressure-dependent VAV boxes with one or two hot water reheat valves, run on the Siemens BACnet PTEC unit conditioner controller 550-496PA.
Also known as: PTEC 6643, Application 6643, App 6643, 550-496PA, Siemens pressure dependent VAV - Fan coil unit controller
Siemens BACnet PTEC Unit Conditioner - Application 6644 (Two-Pipe Fan Coil Unit Cooling or Heating)
Two-pipe changeover fan coil units with one valve for heating or cooling and an optional second heating valve, on the Siemens BACnet PTEC unit conditioner controller 550-496PA.
Also known as: PTEC 6644, Application 6644, App 6644, 550-496PA, Siemens 2-pipe fan coil, Unit Conditioner - Fan coil unit controller
Siemens BACnet PTEC Unit Conditioner - Application 6645 (Fan Coil Unit Cooling and Heating)
Four-pipe fan coil units with separate cooling and heating valves on the Siemens BACnet PTEC unit conditioner controller 550-496PA.
Also known as: PTEC 6645, Application 6645, App 6645, 550-496PA, Siemens PTEC fan coil, Unit Conditioner - Fan coil unit controller
Siemens BACnet PTEC Unit Conditioner - Application 6646 (Fan Coil Unit Two-Stage Cooling and Electric Heat)
Fan coil units with up to two cooling stages (2-position valves or compressors) and up to three electric heat stages, on the Siemens BACnet PTEC unit conditioner controller 550-496PA.
Also known as: PTEC 6646, Application 6646, App 6646, 550-496PA, Siemens fan coil electric heat, Unit Conditioner - Fan coil unit controller
Siemens BACnet PTEC Unit Conditioner - Application 6648 (Fan Coil Cooling and Electric Heat or VAV Pressure Dependent with Electric Heat)
Fan coil units with a floating cooling valve and up to three electric heat stages, or pressure-dependent VAV boxes with a cooling damper and electric heat, on the Siemens BACnet PTEC unit conditioner controller 550-496PA.
Also known as: PTEC 6648, Application 6648, App 6648, 550-496PA, Siemens fan coil electric heat, Unit Conditioner - Unit ventilator (terminal unit) controller
Siemens BACnet PTEC Unit Vent Controller - Application 6676 (Heating and/or Chilled Water Cooling, ASHRAE Cycle III)
Unit ventilators with a chilled water coil and/or a hot water, steam or electric heating coil, run to ASHRAE Cycle III on the Siemens BACnet PTEC unit vent controller 550-493PA.
Also known as: PTEC 6676, Application 6676, App 6676, 550-493PA, Siemens unit ventilator, ASHRAE Cycle III - Unit ventilator (terminal unit) controller
Siemens BACnet PTEC Unit Vent Controller - Application 6679 (Heating and Cooling, Nesbitt Cycle W)
Classroom unit ventilators with a hot water or steam heating coil, optional chilled water or DX cooling and an outdoor air damper, run to Nesbitt Cycle W on the Siemens BACnet PTEC unit vent controller 550-493PA.
Also known as: PTEC 6679, Application 6679, App 6679, 550-493PA, Siemens unit ventilator, Nesbitt Cycle W - VAV terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6600 (VAV Cooling Only)
Pressure-independent single-duct cooling-only VAV boxes on the Siemens BACnet PTEC terminal box controller 550-495PA.
Also known as: PTEC 6600, Application 6600, App 6600, 550-495PA, Siemens VAV cooling only - VAV terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6601 (VAV Heating or Cooling)
Pressure-independent single-duct VAV boxes (cooling or heating with changeover supply air) on the Siemens BACnet PTEC terminal box controller 550-495PA.
Also known as: PTEC 6601, Application 6601, App 6601, 550-495PA, Siemens PTEC VAV - VAV terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6602 (VAV with Electric Reheat or Baseboard Radiation)
Pressure-independent single-duct VAV boxes with up to three stages of electric reheat or baseboard radiation on the Siemens BACnet PTEC terminal box controller 550-495PA.
Also known as: PTEC 6602, Application 6602, App 6602, 550-495PA, Siemens VAV electric reheat - VAV terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6603 (VAV with Hot Water Reheat)
Pressure-independent single-duct VAV boxes with one or two floating hot water reheat valves on the Siemens BACnet PTEC terminal box controller 550-495PA.
Also known as: PTEC 6603, Application 6603, App 6603, 550-495PA, Siemens VAV hot water reheat - Fan-powered VAV terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6606 (Parallel Fan with Electric Heat)
Parallel fan-powered VAV boxes with up to three stages of electric heat on the Siemens BACnet PTEC terminal box controller 550-495PA.
Also known as: PTEC 6606, Application 6606, App 6606, 550-495PA, Siemens parallel fan VAV, fan-powered VAV electric heat - Fan-powered VAV terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6607 (Parallel Fan with Hot Water Reheat)
Parallel fan-powered VAV boxes with a floating hot water reheat valve on the Siemens BACnet PTEC terminal box controller 550-495PA.
Also known as: PTEC 6607, Application 6607, App 6607, 550-495PA, Siemens parallel fan VAV hot water - VAV / chilled beam terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6659 (VAV / Chilled Beam with CO2 Demand Control Ventilation)
Single-duct VAV boxes and active chilled beams with a chilled water valve, a hot water valve and room CO2 demand control ventilation on the Siemens BACnet PTEC controller 550-494PA.
Also known as: PTEC 6659, Application 6659, App 6659, 550-494PA, Siemens chilled beam controller, Siemens VAV demand control ventilation - VAV terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6680 (VAV with CO2 Monitoring, AOV or Floating Reheat)
Single-duct VAV boxes with one or two 0-10 V or floating heating devices and optional room CO2 monitoring on the Siemens BACnet PTEC controller 550-499PA.
Also known as: PTEC 6680, Application 6680, App 6680, 550-499PA, Siemens VAV CO2 monitoring - Fan-powered VAV terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6681 (Series Fan, CO2 Monitoring, AOV or Floating Reheat)
Series fan-powered VAV boxes with 0-10 V or floating reheat and optional CO2 monitoring on the Siemens BACnet PTEC controller 550-499PA.
Also known as: PTEC 6681, Application 6681, App 6681, 550-499PA, Siemens series fan VAV - Fan-powered VAV terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6682 (Parallel Fan, CO2 Monitoring, AOV or Floating Reheat)
Parallel fan-powered VAV boxes with one or two 0-10 V or floating heating devices and optional room CO2 monitoring on the Siemens BACnet PTEC controller 550-499PA.
Also known as: PTEC 6682, Application 6682, App 6682, 550-499PA, Siemens parallel fan VAV CO2 - Room pressure monitor
Siemens BACnet Room Pressure Monitor (RPM / SRCM)
The Siemens BACnet Room Pressure Monitor (SRCM device) for single-room differential pressure monitoring with door input and alarm relay.
Also known as: Siemens RPM, SRCM, Setra SRCM, Room Condition Monitor - Variable frequency drive (HVAC)
Siemens BT300 HVAC drive (BACnet)
Siemens Building Technologies BT300 HVAC variable frequency drives, all voltage and power ranges, BACnet firmware 1.1.
Also known as: BT300, Siemens BT300, BT300 VFD, BT300 frequency converter, BT300 HVAC drive - Networked room thermostat
Siemens RDY2000BN BACnet Commercial Thermostat (Applications 14900 / 14901)
Siemens RDY2000BN 24 Vac commercial thermostats for conventional staged rooftop units (application 14900) and heat pumps (application 14901).
Also known as: RDY2000BN, RDY2000, Application 14900, Application 14901 - Variable frequency drive (HVAC)
Siemens SINAMICS G120 CU230P-2 HVAC (BACnet MS/TP)
SINAMICS G120 / G120P inverters with the CU230P-2 HVAC control unit using its RS-485 port for BACnet MS/TP.
Also known as: G120P, SINAMICS G120P, CU230P-2, CU230P-2 HVAC, 6SL3243-0BB30-1HA3, A5E02430659B
Source: BACnet PTEC Controller Unit Vent - Heating and DX Cooling, ASHRAE Cycles I and II, Application 6677, Application Note · 140-1182 · rev. 2018-01-23. Object names, instances and units are reproduced as published; descriptions are our own.