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Heat pump unit controller · BACnet points list
Siemens BACnet PTEC Heat Pump Controller - Application 6674 (Multiple Heating and Cooling, Mixed Air, Internal Reversing Valve) BACnet points list
Updated 28 October 2026
Application 6674 runs a heat pump whose reversing valve is switched inside the unit, on a Siemens BACnet PTEC controller over BACnet MS/TP. It has separate outputs for up to two heating and two cooling compressor stages, optional electric auxiliary heat, and an optional mixed air damper for ventilation and free cooling. It is based on application 2584 of the earlier Siemens BACnet heat pump controller.
This page lists 103 BACnet objects for the Siemens BACnet PTEC Heat Pump Controller - Application 6674 (Multiple Heating and Cooling, Mixed Air, Internal Reversing Valve) — 90 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 Heat Pump Controller - Application 6674 (Multiple Heating and Cooling, Mixed Air, Internal Reversing Valve)
- Equipment
- Heat pump unit controller
- Equipment type
- Heat pumps
- BACnet objects
- 103 (90 writable)
- Transport
- BACnet MS/TP
- Firmware
- Newer than revision Bx40
- Also known as
- PTEC 6674, Application 6674, App 6674, 550-490PA, Siemens PTEC heat pump, Application 2584
BMS integration notes: Siemens BACnet PTEC Heat Pump Controller - Application 6674 (Multiple Heating and Cooling, Mixed Air, Internal Reversing Valve)
Address the controller on the BACnet MS/TP trunk (manually or with auto addressing). The BMS commands occupancy with DAY.NGT (BO 29) and the day setpoints, enables free cooling with FREE CLG (BO 23) when outdoor air is suitable, and reads room temperature, fan and compressor status, the heat pump alarm input 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 allowed (outdoor air cool enough) | Command |
| AO 6 | DAY CLG STPT | Occupied cooling setpoint, °F | Command |
| AO 7 | DAY HTG STPT | Occupied heating setpoint, °F | Command |
| BO 50 | FAN | Fan on/off | Command |
| BO 46 | CLG CMP 1 | Cooling compressor 1 on/off | Command |
| BO 44 | HTG CMP 1 | Heating compressor 1 on/off | Command |
| AI 4 | ROOM TEMP | Space temperature | Read |
| BI 26 | DI 6 | Heat pump alarm input, if wired to DI 6 | 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
FREE CLG (BO 23) is set by the field panel to say whether outdoor air is cool enough for free cooling; with it DISABL the damper stays at minimum (day) or closed (night).
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 6690.
Watch out for
- 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, motor timing, rotation angles and setup codes are commissioning values; don't write them from the BMS routinely.
- Fan and compressor outputs ignore BACnet commands unless HP DO OVRD (BO 69) is ENABLE; by default operators cannot command them.
- After a power failure the compressors and electric heat stay off, with the fan on, until the controller's power failure recovery period ends.
Siemens BACnet PTEC Heat Pump Controller - Application 6674 (Multiple Heating and Cooling, Mixed Air, Internal Reversing Valve) 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 | RETURN DELAY | Restart delay after power failure | min | Command | |
| AImin | 4 | ROOM TEMP | Room temperature from the room unit | °F | Read | |
| BO | 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 | DMPR MIN POS | Mixed 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 | MA TEMP | Mixed air temperature | °F | Read | |
| AO | 16 | HTG CMP2 ON | Heating loop % that starts heating compressor 2 | % | Command | |
| AO | 17 | HTG CMP2 OFF | Heating loop % that stops heating compressor 2 | % | Command | |
| 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 | |
| AO | 22 | RMTMP OFFSET | Room temperature calibration offset | °F | Command | |
| 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 | DI 6 | Digital input 6 (heat pump alarm, optional) | Read | 0=OFF, 1=ON | |
| AO | 27 | HTG2 MIN OFF | Heating compressor 2 minimum off time | min | Command | |
| AO | 28 | HTG2 MIN ON | Heating compressor 2 minimum on time | min | Command | |
| BOmin | 29 | DAY.NGT | Day/night (occupancy) mode | Command | 0=DAY, 1=NIGHT | |
| AO | 30 | CLG CMP1 ON | Cooling loop % that starts cooling compressor 1 | % | Command | |
| AO | 31 | CLG CMP1 OFF | Cooling loop % that stops cooling compressor 1 | % | Command | |
| AO | 32 | CLG1 MIN OFF | Cooling compressor 1 minimum off time | min | Command | |
| AO | 33 | CLG1 MIN ON | Cooling compressor 1 minimum on time | min | Command | |
| AO | 34 | CLG CMP2 ON | Cooling loop % that starts cooling compressor 2 | % | Command | |
| AO | 35 | CLG CMP2 OFF | Cooling loop % that stops cooling compressor 2 | % | Command | |
| AO | 36 | CLG2 MIN OFF | Cooling compressor 2 minimum off time | min | Command | |
| AO | 37 | CLG2 MIN ON | Cooling compressor 2 minimum on time | min | Command | |
| BO | 38 | DAMPER TYPE | Mixed air damper actuator: spring return or floating | Command | 0=FLOAT, 1=SPRING | |
| AO | 39 | AO DIR.REV | Analog output direction reverse (additive code) | Command | ||
| AO | 40 | AOV1 | Analog output 1 (0-10 V) | V | Command | |
| BO | 41 | DO 1 | Digital output 1 | Command | 0=OFF, 1=ON | |
| BO | 42 | DO 2 | Digital output 2 | Command | 0=OFF, 1=ON | |
| BO | 43 | ELEC HEAT | Electric heat output | Command | 0=OFF, 1=ON | |
| BOmin | 44 | HTG CMP 1 | Heating compressor 1 output | Command | 0=OFF, 1=ON | |
| BO | 45 | HTG CMP 2 | Heating compressor 2 output | Command | 0=OFF, 1=ON | |
| BOmin | 46 | CLG CMP 1 | Cooling compressor 1 output | Command | 0=OFF, 1=ON | |
| BO | 47 | CLG CMP 2 | Cooling compressor 2 output | Command | 0=OFF, 1=ON | |
| AO | 48 | DMPR COMD | Mixed air damper command | % | Command | |
| AO | 49 | DMPR POS | Mixed air damper position (calculated) | % | Command | |
| BOmin | 50 | FAN | Fan command | Command | 0=OFF, 1=ON | |
| AO | 51 | MTR TIMING | Damper motor full-stroke time | s | Command | |
| AI | 52 | AI 3 | Spare analog input 3 | % | Read | |
| AI | 53 | AI 4 | Spare analog input 4 | °F | Read | |
| AO | 54 | AOV2 | Analog output 2 (0-10 V) | V | Command | |
| BI | 55 | DI 3 | Digital input 3 | Read | 0=OFF, 1=ON | |
| AO | 56 | DMPR ROT ANG | Damper rotation angle | Command | ||
| BI | 57 | DI 4 | Digital input 4 | Read | 0=OFF, 1=ON | |
| AO | 58 | MTR SETUP | Motor enable/reverse setup (additive code) | Command | ||
| AO | 59 | DO DIR.REV | Digital output direction reverse (additive code) | Command | ||
| BO | 60 | CYCLE FAN | Cycle the fan with demand in day mode | Command | 0=NO, 1=YES | |
| AO | 61 | FREE CLG ON | Cooling loop output that starts free cooling | % | Command | |
| AO | 62 | FREE CLG OFF | Cooling loop output that stops free cooling | % | Command | |
| AO | 63 | CLG P GAIN | Cooling loop proportional gain | Command | ||
| AO | 64 | CLG I GAIN | Cooling loop integral gain | Command | ||
| AO | 65 | STPT SPAN | Room unit setpoint adjustment span | °F | Command | |
| AO | 67 | HTG P GAIN | Heating loop proportional gain | Command | ||
| AO | 68 | HTG I GAIN | Heating loop integral gain | Command | ||
| BO | 69 | HP DO OVRD | Allow BACnet commands to fan, compressor, reversing valve | Command | 0=DISABL, 1=ENABLE | |
| AO | 71 | MA P GAIN | Mixed air loop proportional gain | Command | ||
| AO | 72 | MA I GAIN | Mixed air loop integral gain | Command | ||
| AO | 73 | MA D GAIN | Mixed air loop derivative gain | Command | ||
| AO | 74 | MA BIAS | Mixed air loop bias | % | Command | |
| AO | 75 | HTG CMP TOTL | Number of heating compressors (0-2) | Command | ||
| AO | 76 | EHTG STG CNT | Number of electric heat stages | Command | ||
| AO | 77 | CLG CMP TOTL | Number of cooling compressors (0-2) | 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 | ELEC HEAT ON | Heating loop % that starts electric heat | % | Command | |
| AO | 82 | HTG CMP1 ON | Heating loop % that starts heating compressor 1 | % | Command | |
| AO | 83 | HTG CMP1 OFF | Heating loop % that stops heating compressor 1 | % | 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 | 87 | HTG1 MIN OFF | Heating compressor 1 minimum off time | min | Command | |
| AO | 88 | HTG1 MIN ON | Heating compressor 1 minimum on time | min | Command | |
| AO | 90 | SWITCH DBAND | Temperature deadband for heat/cool switchover | °F | Command | |
| BO | 91 | NGT MA CTL | Mixed air control at night | Command | 0=NO, 1=YES | |
| AO | 92 | CTL STPT | Active control setpoint | °F | Command | |
| AO | 93 | MA SETPT | Mixed air temperature setpoint | °F | Command | |
| AO | 96 | CAL TIMER | Calibration timer (not described in the guide) | h | Command | |
| AO | 97 | AOV3 | Analog output 3 (0-10 V) | V | Command | |
| AO | 98 | LOOP TIME | Control loop interval | s | Command | |
| AOmin | 99 | ERROR STATUS | Controller error status code | Command | ||
| AO | 101 | CLG BIAS | Cooling loop bias | % | Command | |
| AO | 102 | HTG BIAS | Heating loop bias | % | Command | |
| AO | 103 | CLG D GAIN | Cooling loop derivative gain | Command | ||
| AO | 104 | HTG D GAIN | Heating loop derivative gain | Command | ||
| AO | 120 | ENTHALPY | Room enthalpy | Btu/lb | Command | |
| AO | 121 | DEW POINT | Room dew point | °F | Command | |
| BO | 122 | PPCL STATE | PPCL program loaded or empty | Command | 0=EMPTY, 1=LOADED | |
| AI | 123 | RM CO2 | Room CO2 | ppm | Read | |
| AO | 126 | SENSOR SEL | Room unit / sensor select code (additive) | Command | ||
| AI | 127 | RM RH | Room relative humidity | % | Read |
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.
- DI 6 (BI 26) can be wired to the heat pump alarm contact for central alarm monitoring.
- HTG CMP TOTL (AO 75) and CLG CMP TOTL (AO 77) set 0-2 heating and 0-2 cooling compressors.
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 Heat Pump Controller - Application 6674 (Multiple Heating and Cooling, Mixed Air, Internal Reversing Valve) 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 Heat Pump Controller - Application 6674 (Multiple Heating and Cooling, Mixed Air, Internal Reversing Valve)
How many BACnet points does the Siemens BACnet PTEC Heat Pump Controller - Application 6674 (Multiple Heating and Cooling, Mixed Air, Internal Reversing Valve) have?
This list has 103 BACnet objects: 7 analog inputs, 71 analog outputs, 6 binary inputs, 19 binary outputs. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Siemens BACnet PTEC Heat Pump Controller - Application 6674 (Multiple Heating and Cooling, Mixed Air, Internal Reversing Valve) BACnet points are writable?
90 of the 103 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 Heat Pump Controller - Application 6674 (Multiple Heating and Cooling, Mixed Air, Internal Reversing Valve) BACnet documentation?
The source is BACnet PTEC Controller Heat Pump - Multiple Heating and Cooling Heat Pump with Mixed Air Control and Internal Reversing Valve Control, Application 6674, Application Note (140-1151), revision 2014-07-17, published free by Siemens at https://sid.siemens.com/api/khub/documents/2U1efd1GhNfXwXL45IKzzg/content.
What are the minimum BACnet points to integrate the Siemens BACnet PTEC Heat Pump Controller - Application 6674 (Multiple Heating and Cooling, Mixed Air, Internal Reversing Valve)?
Start with BO 29 DAY.NGT (DAY = occupied, NIGHT = unoccupied); BO 23 FREE CLG (Free cooling allowed (outdoor air cool enough)); AO 6 DAY CLG STPT (Occupied cooling setpoint, °F); AO 7 DAY HTG STPT (Occupied heating setpoint, °F); BO 50 FAN (Fan on/off); BO 46 CLG CMP 1 (Cooling compressor 1 on/off); BO 44 HTG CMP 1 (Heating compressor 1 on/off); AI 4 ROOM TEMP (Space temperature); BI 26 DI 6 (Heat pump alarm input, if wired to DI 6); AO 99 ERROR STATUS (Controller error code).
How do I enable BMS control of the Siemens BACnet PTEC Heat Pump Controller - Application 6674 (Multiple Heating and Cooling, Mixed Air, Internal Reversing Valve)?
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 Heat Pump Controller - Application 6674 (Multiple Heating and Cooling, Mixed Air, Internal Reversing Valve)?
FREE CLG (BO 23) is set by the field panel to say whether outdoor air is cool enough for free cooling; with it DISABL the damper stays at minimum (day) or closed (night).
How do I check these points on the real BACnet PTEC Heat Pump Controller - Application 6674 (Multiple Heating and Cooling, Mixed Air, Internal Reversing Valve)?
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 - 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 6677 (Heating and DX Cooling, ASHRAE Cycles I and II)
Unit ventilators with a DX cooling coil and/or a hot water, steam or electric heating coil, run to ASHRAE Cycles I and II on the Siemens BACnet PTEC unit vent controller 550-493PA.
Also known as: PTEC 6677, Application 6677, App 6677, 550-493PA, Siemens unit ventilator DX, ASHRAE Cycle II - 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 Heat Pump - Multiple Heating and Cooling Heat Pump with Mixed Air Control and Internal Reversing Valve Control, Application 6674, Application Note · 140-1151 · rev. 2014-07-17. Object names, instances and units are reproduced as published; descriptions are our own.