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Novelan heat pump controller GLT (BACnet IP)

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ait-deutschland Novelan heat pump controller GLT (BACnet IP) BACnet points list

Updated 12 November 2026Unofficial source

Short answer

The GLT option turns on BACnet IP (or Modbus TCP) on the Ethernet port of the ait-deutschland heating and heat pump controller used in Novelan heat pumps. Every data point is an Analog Input, Multistate Input, Binary Input or Accumulator; the writable ones also appear as Analog Values or Multistate Values with their own instance numbers (outdoor temperature, return and mixing-circuit setpoints, DHW setpoint, heating curves, operating modes, compressor release) and Binary Outputs reset faults or force pumps on. The guide lists data point names in German.

This page lists 144 BACnet objects for the ait-deutschland Novelan heat pump controller GLT (BACnet IP) — 37 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from a copy of ait-deutschland’s documentation hosted by ioBroker forum, not by ait-deutschland itself, so treat it as unofficial.

Manufacturer: ait-deutschland
Model: Novelan heat pump controller GLT (BACnet IP)
Equipment: Heat pump controller
Equipment type: Heat pumps
BACnet objects: 144 (37 writable)
Transport: BACnet IP
Firmware: Controller software V1.60 or later (BACnet IP)
Also known as: Novelan GLT, GLT, Novelan GLT Tool, Novelan, 83055703hDE
Source document: Betriebsanleitung Zubehör für Wärmepumpen - Anbindung an eine Gebäudeleittechnik via BACnet/IP | ModBus/TCP - Novelan GLT · 83055703hDE (unofficial copy, hosted by ioBroker forum)

Download CSV 144 rows Download EDE B.I.G.-EU JSON Source PDF (unofficial copy) ↗ Compare with your scan Download Easy BACnet Mobile App Google Play

Reference only, provided as-is: verify against ait-deutschland’s current documentation and the live device before use. Not official ait-deutschland information. Terms of use.

BMS integration notes: ait-deutschland Novelan heat pump controller GLT (BACnet IP)

Integration in brief

Release the heat pump with MV 1, set the heating and hot water modes (MV 2 / MV 3) and write setpoints such as the DHW setpoint (AV 6) or a mixing circuit flow setpoint. Read the operating state (MI 1), flow and return temperatures, and the two fault BIs; reset latching faults with BO 1.

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
MV 1	Sperre / Freigabe Wärmepumpe	Lock heat pump (1) or release 1 / 2 compressors (2 / 3)	Write
MV 2	Betriebsart Heizen	Heating mode (1 = Automatik, 5 = Aus)	Write
MV 3	Betriebsart Trinkwarmwasser	Hot water mode (1 = Automatik, 5 = Aus)	Write
AV 6	Trinkwarmwasser Wunschwert	Hot water setpoint, °C	Write
BO 1	Fehlerreset	Fault reset (1 = reset)	Write
MI 1	Betriebszustand	Operating state (heating, DHW, defrost, off ...)	Read
AI 1	Vorlauftemperatur	Flow temperature	Read
AI 2	Rücklauftemperatur	Return temperature	Read
BI 1	Selbst zurücksetzende Störung	Self-resetting fault active	Read
BI 2	Nicht selbst zurücksetzende Störung	Latching fault active	Read

Enable & remote start

MV 1 (Sperre / Freigabe Wärmepumpe) locks the heat pump or releases one or two compressors; the operating modes for heating, DHW, mixing circuits, cooling, ventilation and pool are set with MV 2-10.

Sensors & values from the BMS

The outdoor temperature can be written to AV 1 (Außentemperatur); the guide says to disconnect the heat pump's own outdoor sensor when doing so.

Network setup

BACnet IP on UDP 47808 over the controller's Ethernet port; IP settings via DHCP server, DHCP client or manual entry on the controller (Service > Systemsteuerung).
Device name, device ID, model name and location are set with the Novelan GLT Tool; the device ID must be unique on the network.
A wrong broadcast address stops the heat pump being found over BACnet IP.

Watch out for

Software older than V1.74/V2.74/V3.76/V4.76 supports only BACnet IP, not Modbus TCP; switching between them needs the GLT Tool.
BO 1 Fehlerreset returns to 0 by itself after a 1 is written.

ait-deutschland Novelan heat pump controller GLT (BACnet IP) 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.

144 of 144 shown

Type

Other

Access

Units

Show

ait-deutschland Novelan heat pump controller GLT (BACnet IP) BACnet Points List
			Description			States
AImin	1	Vorlauftemperatur	Flow temperature	°C	Read
AImin	2	Rücklauftemperatur	Return temperature	°C	Read
AI	3	Heissgastemperatur	Hot gas temperature	°C	Read
AI	4	Wärmequelle Eintritt	Heat source inlet temperature	°C	Read
AI	5	Wärmequelle Austritt	Heat source outlet temperature	°C	Read
AI	6	Mischkreis 1 Vorlauf	Mixing circuit 1 flow temperature	°C	Read
AI	7	Rücklauf extern	External return temperature	°C	Read
AI	8	Raumfernversteller 1	Remote room adjuster 1	°C	Read
AI	9	Mischkreis 2 Vorlauf	Mixing circuit 2 flow temperature	°C	Read
AI	10	Raumfernversteller 2	Remote room adjuster 2	°C	Read
AI	11	Mischkreis 3 Vorlauf	Mixing circuit 3 flow temperature	°C	Read
AI	12	Raumfernversteller 3	Remote room adjuster 3	°C	Read
AI	13	Solarkollektor	Solar collector temperature	°C	Read
AI	14	Solarspeicher	Solar storage tank temperature	°C	Read
AI	15	Externe Energiequelle	External energy source temperature	°C	Read
AI	16	Außentemperatur	Outdoor temperature	°C	Read
AI	17	Rücklauf Sollwert	Return temperature setpoint	°C	Read
AI	18	Mischkreis 1 Sollwert Vorlauf	Mixing circuit 1 flow setpoint	°C	Read
AI	19	Mischkreis 2 Sollwert Vorlauf	Mixing circuit 2 flow setpoint	°C	Read
AI	20	Mischkreis 3 Sollwert Vorlauf	Mixing circuit 3 flow setpoint	°C	Read
AI	21	Zulufttemperatur	Supply air temperature	°C	Read
AI	22	Trinkwarmwasser Ist-Temperatur	Domestic hot water actual temperature	°C	Read
AI	23	Trinkwarmwasser Wunschwert	Domestic hot water setpoint	°C	Read
AI	24	Ansaugtemperatur Verdichter	Compressor suction temperature	°C	Read
AI	25	Ansaugtemperatur Verdampfer	Evaporator suction temperature	°C	Read
AI	26	Temperatur Verdichterheizung	Compressor heater temperature	°C	Read
AI	27	Überhitzung	Superheat	K	Read
AI	28	Überhitzung Soll	Superheat setpoint	K	Read
AI	29	Druck HD (Hochdruck)	High pressure	bar	Read
AI	30	Druck ND (Niederdruck)	Low pressure	bar	Read
AI	31	RBE Raumtemperatur Ist	Room unit actual temperature	°C	Read
AI	32	RBE Raumtemperatur Soll	Room unit temperature setpoint	°C	Read
AI	33	Aktueller Durchfluss	Current flow rate	l/h	Read
AI	34	Heizkurve Heizung Endpunkt	Heating curve end point	°C	Read
AI	35	Heizkurve Heizung Parallelverschiebung	Heating curve parallel shift	°C	Read
AI	36	Heizkurve Mischkreis 1 Endpunkt	Mixing circuit 1 curve end point	°C	Read
AI	37	Heizkurve Mischkreis 1 Parallelverschiebung	Mixing circuit 1 curve parallel shift	°C	Read
AI	38	Heizkurve Mischkreis 2 Endpunkt	Mixing circuit 2 curve end point	°C	Read
AI	39	Heizkurve Mischkreis 2 Parallelverschiebung	Mixing circuit 2 curve parallel shift	°C	Read
AI	40	Heizkurve Mischkreis 3 Endpunkt	Mixing circuit 3 curve end point	°C	Read
AI	41	Heizkurve Mischkreis 3 Parallelverschiebung	Mixing circuit 3 curve parallel shift	°C	Read
AI	42	Temperatur + –	Temperature +/- offset	°C	Read
AI	43	Leistung Ist	Actual output	kW	Read
AV	1	Außentemperatur	Outdoor temperature (write)	°C	Write
AV	2	Rücklauf Sollwert	Return temperature setpoint (write)	°C	Write
AV	3	Mischkreis 1 Sollwert Vorlauf	Mixing circuit 1 flow setpoint (write)	°C	Write
AV	4	Mischkreis 2 Sollwert Vorlauf	Mixing circuit 2 flow setpoint (write)	°C	Write
AV	5	Mischkreis 3 Sollwert Vorlauf	Mixing circuit 3 flow setpoint (write)	°C	Write
AVmin	6	Trinkwarmwasser Wunschwert	Domestic hot water setpoint (write)	°C	Write
AV	7	Heizkurve Heizung Endpunkt	Heating curve end point (write)	°C	Write
AV	8	Heizkurve Heizung Parallelverschiebung	Heating curve parallel shift (write)	°C	Write
AV	9	Heizkurve Mischkreis 1 Endpunkt	Mixing circuit 1 curve end point (write)	°C	Write
AV	10	Heizkurve Mischkreis 1 Parallelverschiebung	Mixing circuit 1 curve parallel shift (write)	°C	Write
AV	11	Heizkurve Mischkreis 2 Endpunkt	Mixing circuit 2 curve end point (write)	°C	Write
AV	12	Heizkurve Mischkreis 2 Parallelverschiebung	Mixing circuit 2 curve parallel shift (write)	°C	Write
AV	13	Heizkurve Mischkreis 3 Endpunkt	Mixing circuit 3 curve end point (write)	°C	Write
AV	14	Heizkurve Mischkreis 3 Parallelverschiebung	Mixing circuit 3 curve parallel shift (write)	°C	Write
AV	15	Temperatur + –	Temperature +/- offset (write)	°C	Write
MImin	1	Betriebszustand	Operating state		Read	1=Heizbetrieb, 2=Trinkwarmwasser, 3=Schwimmbad, 4=EVU-Sperre, 5=Abtauen, 6=Aus, 7=Externe Energiequelle, 8=Kühlung
MI	2	Aus / mit Anzahl aktiver Verdichter	Off / number of compressors running		Read	1=Aus, 2=1 Verdichter läuft, 3=2 Verdichter laufen
MVmin	1	Sperre / Freigabe Wärmepumpe	Heat pump lock / compressors released (write)		Write	1=Sperre Wärmepumpe, 2=Freigabe 1 Verdichter, 3=Freigabe 2 Verdichter
MI	3	Betriebsart Heizen	Heating operating mode		Read	1=Automatik, 2=Zusätzlicher Wärmeerzeuger, 3=Party, 4=Ferien, 5=Aus
MVmin	2	Betriebsart Heizen	Heating operating mode (write)		Write	1=Automatik, 2=Zusätzlicher Wärmeerzeuger, 3=Party, 4=Ferien, 5=Aus
MI	4	Betriebsart Trinkwarmwasser	Domestic hot water operating mode		Read	1=Automatik, 2=Zusätzlicher Wärmeerzeuger, 3=Party, 4=Ferien, 5=Aus
MVmin	3	Betriebsart Trinkwarmwasser	Domestic hot water operating mode (write)		Write	1=Automatik, 2=Zusätzlicher Wärmeerzeuger, 3=Party, 4=Ferien, 5=Aus
MI	6	Betriebsart Mischkreis 2	Mixing circuit 2 operating mode		Read	1=Automatik, 2=Zusätzlicher Wärmeerzeuger, 3=Party, 4=Ferien, 5=Aus
MV	5	Betriebsart Mischkreis 2	Mixing circuit 2 operating mode (write)		Write	1=Automatik, 2=Zusätzlicher Wärmeerzeuger, 3=Party, 4=Ferien, 5=Aus
MI	7	Betriebsart Mischkreis 3	Mixing circuit 3 operating mode		Read	1=Automatik, 2=Zusätzlicher Wärmeerzeuger, 3=Party, 4=Ferien, 5=Aus
MV	6	Betriebsart Mischkreis 3	Mixing circuit 3 operating mode (write)		Write	1=Automatik, 2=Zusätzlicher Wärmeerzeuger, 3=Party, 4=Ferien, 5=Aus
MI	8	Betriebsart Kühlung	Cooling operating mode		Read	1=Aus, 2=Automatik
MV	7	Betriebsart Kühlung	Cooling operating mode (write)		Write	1=Aus, 2=Automatik
MI	9	Betriebsart Lüftung	Ventilation operating mode		Read	1=Automatik, 2=Party, 3=Ferien, 4=Aus
MV	8	Betriebsart Lüftung	Ventilation operating mode (write)		Write	1=Automatik, 2=Party, 3=Ferien, 4=Aus
MI	10	Betriebsart Schwimmbad	Pool operating mode		Read	1=Automatik, 2=nicht benutzt, 3=Party, 4=Ferien, 5=Aus
MV	9	Betriebsart Schwimmbad	Pool operating mode (write)		Write	1=Automatik, 2=nicht benutzt, 3=Party, 4=Ferien, 5=Aus
MI	11	Smart Grid	Smart Grid state		Read	1=EVU-Sperre, 2=Smart Grid Low, 3=Standard, 4=Smart Grid High
MV	10	Smart Grid	Smart Grid state (write)		Write	1=EVU-Sperre, 2=Smart Grid Low, 3=Standard, 4=Smart Grid High
BImin	1	Selbst zurücksetzende Störung	Self-resetting fault (fault number in Active_Text)		Read	0=Inactive (no fault), 1=Active (self-resetting fault)
BImin	2	Nicht selbst zurücksetzende Störung	Latching fault (fault number in Active_Text)		Read	0=Inactive (no fault), 1=Active (fault)
BI	3	HUP	Heating circulation pump		Read	0=Aus, 1=An
BI	4	VEN	Fan		Read	0=Aus, 1=An
BI	5	ZUP	Additional circulation pump		Read	0=Aus, 1=An
BI	6	BUP	DHW circulation pump		Read	0=Aus, 1=An
BI	7	Ventil_BOSUP	Fan / well or brine circulation pump		Read	0=Aus, 1=An
BI	8	ZIP	Recirculation pump		Read	0=Aus, 1=An
BI	9	FUP2	Floor heating pump 2		Read	0=Aus, 1=An
BI	10	FUP3	Floor heating pump 3		Read	0=Aus, 1=An
BI	11	SLP	Solar charging pump		Read	0=Aus, 1=An
BI	12	SUP	Pool circulation pump		Read	0=Aus, 1=An
BI	13	VSK	Bypass damper		Read	0=Aus, 1=An
BI	14	FRH	Defrost heater contactor		Read	0=Aus, 1=An
BI	15	Verdichter 1	Compressor 1		Read	0=Aus, 1=An
BI	16	Verdichter 2	Compressor 2		Read	0=Aus, 1=An
BI	17	ZWE1	Additional heat generator 1		Read	0=Aus, 1=An
BI	18	ZWE2_SST	Additional heat generator 2 / fault output		Read	0=Aus, 1=An
BI	19	ZWE3	Additional heat generator 3		Read	0=Aus, 1=An
BI	20	ASD	Defrost, brine pressure, flow input		Read	0=Aus, 1=An
BI	21	BWT	DHW thermostat input		Read	0=Aus, 1=An
BI	22	EVU	Utility lock-out input		Read	0=Aus, 1=An
BI	23	HD	High pressure switch		Read	0=Aus, 1=An
BI	24	MOT	Motor protection		Read	0=Aus, 1=An
BI	25	ND	Low pressure switch		Read	0=Aus, 1=An
BI	26	PEX	Impressed-current anode monitor		Read	0=Aus, 1=An
BI	27	SWT	Pool thermostat input		Read	0=Aus, 1=An
BI	28	SAX	Remote control: boost ventilation		Read	0=Aus, 1=An
BI	29	SPL	Ventilation shut-off contact		Read	0=Aus, 1=An
BI	30	EVU2	Smart Grid input (with EVU)		Read	0=Reduced mode (EVU=0) / EVU lock-out (EVU=1), 1=Normal mode (EVU=0) / raised mode (EVU=1)
BOmin	1	Fehlerreset	Fault reset; returns to 0 after a 1 is sent		Write	0=ohne Wirkung, 1=Reset auslösen
BO	3	HUP	Heating circulation pump output override		Write	0=Automatisch, 1=An
BO	4	VEN	Fan output override		Write	0=Automatisch, 1=An
BO	5	ZUP	Additional circulation pump output override		Write	0=Automatisch, 1=An
BO	6	BUP	DHW circulation pump output override		Write	0=Automatisch, 1=An
BO	7	Ventil_BOSUP	Fan / well or brine circulation pump output override		Write	0=Automatisch, 1=An
BO	8	ZIP	Recirculation pump output override		Write	0=Automatisch, 1=An
BO	9	FUP2	Floor heating pump 2 output override		Write	0=Automatisch, 1=An
BO	10	FUP3	Floor heating pump 3 output override		Write	0=Automatisch, 1=An
BO	11	SLP	Solar charging pump output override		Write	0=Automatisch, 1=An
BO	12	SUP	Pool circulation pump output override		Write	0=Automatisch, 1=An
BO	13	VSK	Bypass damper output override		Write	0=Automatisch, 1=An
BO	14	FRH	Defrost heater contactor output override		Write	0=Automatisch, 1=An
ACC	1	Wärmemenge Heizung	Heat quantity, heating	kWh	Read
ACC	2	Wärmemenge Trinkwarmwasser	Heat quantity, DHW	kWh	Read
ACC	3	Wärmemenge Schwimmbad	Heat quantity, pool	kWh	Read
ACC	4	Wärmemenge gesamt	Heat quantity, total	kWh	Read
ACC	5	Betriebstund. VD1	Compressor 1 run hours	h	Read
ACC	6	Impulse Verdichter 1	Compressor 1 starts		Read
ACC	7	Betriebstund. VD2	Compressor 2 run hours	h	Read
ACC	8	Impulse Verdichter 2	Compressor 2 starts		Read
ACC	9	Betriebstunden ZWE1	Additional heater 1 run hours	h	Read
ACC	10	Betriebstunden ZWE2	Additional heater 2 run hours	h	Read
ACC	11	Betriebstunden ZWE3	Additional heater 3 run hours	h	Read
ACC	12	Betriebstunden WP	Heat pump run hours	h	Read
ACC	13	Betriebstunden Heiz.	Heating run hours	h	Read
ACC	14	Betriebstunden WW	DHW run hours	h	Read
ACC	15	Betriebstunden Kuehl	Cooling run hours	h	Read
ACC	16	Betriebstunden SWoPV	Pool or PV run hours	h	Read
ACC	17	Betriebstunden Solar	Solar run hours	h	Read
ACC	18	Fehlerspeicher	Current fault (fault memory)		Read
ACC	19	Wärmemenge Kühlung	Heat quantity, cooling	kWh	Read
ACC	20	Eingesetzte Energie Heizung	Energy used, heating	kWh	Read
ACC	21	Eingesetzte Energie Trinkwarmwasser	Energy used, DHW	kWh	Read
ACC	22	Eingesetzte Energie Kühlung	Energy used, cooling	kWh	Read
ACC	23	Eingesetzte Energie Schwimmbad	Energy used, pool	kWh	Read
ACC	24	Eingesetzte Energie gesamt	Energy used, total	kWh	Read

Object ID lookup: ait-deutschland Novelan heat pump controller GLT point IDs by name

AI1Vorlauftemperatur
AI2Rücklauftemperatur
AI3Heissgastemperatur
AI4Wärmequelle Eintritt
AI5Wärmequelle Austritt
AI6Mischkreis 1 Vorlauf
AI7Rücklauf extern
AI8Raumfernversteller 1
AI9Mischkreis 2 Vorlauf
AI10Raumfernversteller 2
AI11Mischkreis 3 Vorlauf
AI12Raumfernversteller 3
AI13Solarkollektor
AI14Solarspeicher
AI15Externe Energiequelle
AI16Außentemperatur
AI17Rücklauf Sollwert
AI18Mischkreis 1 Sollwert Vorlauf
AI19Mischkreis 2 Sollwert Vorlauf
AI20Mischkreis 3 Sollwert Vorlauf
AI21Zulufttemperatur
AI22Trinkwarmwasser Ist-Temperatur
AI23Trinkwarmwasser Wunschwert
AI24Ansaugtemperatur Verdichter
AI25Ansaugtemperatur Verdampfer
AI26Temperatur Verdichterheizung
AI27Überhitzung
AI28Überhitzung Soll
AI29Druck HD (Hochdruck)
AI30Druck ND (Niederdruck)
AI31RBE Raumtemperatur Ist
AI32RBE Raumtemperatur Soll
AI33Aktueller Durchfluss
AI34Heizkurve Heizung Endpunkt
AI35Heizkurve Heizung Parallelverschiebung
AI36Heizkurve Mischkreis 1 Endpunkt
AI37Heizkurve Mischkreis 1 Parallelverschiebung
AI38Heizkurve Mischkreis 2 Endpunkt
AI39Heizkurve Mischkreis 2 Parallelverschiebung
AI40Heizkurve Mischkreis 3 Endpunkt
AI41Heizkurve Mischkreis 3 Parallelverschiebung
AI42Temperatur + –
AI43Leistung Ist
AV1Außentemperatur
AV2Rücklauf Sollwert
AV3Mischkreis 1 Sollwert Vorlauf
AV4Mischkreis 2 Sollwert Vorlauf
AV5Mischkreis 3 Sollwert Vorlauf
AV6Trinkwarmwasser Wunschwert
AV7Heizkurve Heizung Endpunkt
AV8Heizkurve Heizung Parallelverschiebung
AV9Heizkurve Mischkreis 1 Endpunkt
AV10Heizkurve Mischkreis 1 Parallelverschiebung
AV11Heizkurve Mischkreis 2 Endpunkt
AV12Heizkurve Mischkreis 2 Parallelverschiebung
AV13Heizkurve Mischkreis 3 Endpunkt
AV14Heizkurve Mischkreis 3 Parallelverschiebung
AV15Temperatur + –
MI1Betriebszustand
MI2Aus / mit Anzahl aktiver Verdichter
MV1Sperre / Freigabe Wärmepumpe
MI3Betriebsart Heizen
MV2Betriebsart Heizen
MI4Betriebsart Trinkwarmwasser
MV3Betriebsart Trinkwarmwasser
MI6Betriebsart Mischkreis 2
MV5Betriebsart Mischkreis 2
MI7Betriebsart Mischkreis 3
MV6Betriebsart Mischkreis 3
MI8Betriebsart Kühlung
MV7Betriebsart Kühlung
MI9Betriebsart Lüftung
MV8Betriebsart Lüftung
MI10Betriebsart Schwimmbad
MV9Betriebsart Schwimmbad
MI11Smart Grid
MV10Smart Grid
BI1Selbst zurücksetzende Störung
BI2Nicht selbst zurücksetzende Störung
BI3HUP
BI4VEN
BI5ZUP
BI6BUP
BI7Ventil_BOSUP
BI8ZIP
BI9FUP2
BI10FUP3
BI11SLP
BI12SUP
BI13VSK
BI14FRH
BI15Verdichter 1
BI16Verdichter 2
BI17ZWE1
BI18ZWE2_SST
BI19ZWE3
BI20ASD
BI21BWT
BI22EVU
BI23HD
BI24MOT
BI25ND
BI26PEX
BI27SWT
BI28SAX
BI29SPL
BI30EVU2
BO1Fehlerreset
BO3HUP
BO4VEN
BO5ZUP
BO6BUP
BO7Ventil_BOSUP
BO8ZIP
BO9FUP2
BO10FUP3
BO11SLP
BO12SUP
BO13VSK
BO14FRH
ACC1Wärmemenge Heizung
ACC2Wärmemenge Trinkwarmwasser
ACC3Wärmemenge Schwimmbad
ACC4Wärmemenge gesamt
ACC5Betriebstund. VD1
ACC6Impulse Verdichter 1
ACC7Betriebstund. VD2
ACC8Impulse Verdichter 2
ACC9Betriebstunden ZWE1
ACC10Betriebstunden ZWE2
ACC11Betriebstunden ZWE3
ACC12Betriebstunden WP
ACC13Betriebstunden Heiz.
ACC14Betriebstunden WW
ACC15Betriebstunden Kuehl
ACC16Betriebstunden SWoPV
ACC17Betriebstunden Solar
ACC18Fehlerspeicher
ACC19Wärmemenge Kühlung
ACC20Eingesetzte Energie Heizung
ACC21Eingesetzte Energie Trinkwarmwasser
ACC22Eingesetzte Energie Kühlung
ACC23Eingesetzte Energie Schwimmbad
ACC24Eingesetzte Energie gesamt

Integration notes

The guide gives one table per object type with an Analog Input / Analog Value (or Multistate Input / Value) instance pair per row; AV and MV objects are the writable copies.
Names are the guide's German data point labels; descriptions are ours in English. Abbreviations follow the guide's list (HUP heating pump, BUP DHW pump, ZWE additional heat generator, EVU utility lock-out).
Points shaded in the guide need a comfort / expansion or ventilation board; points marked * apply to units with LIN or Modbus parts. Values not shown on the controller's display are invalid.
There is no MI 5 / MV 4 or BO 2 in the guide.
Resolution is 0.1 for temperatures, 0.01 for pressures and power.
GLT runs for 4 hours as a test after setup with the Novelan GLT Tool and is enabled permanently with a licence from the supplied USB dongle.

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. This list is provided as-is for reference only and may contain mistakes — confirming it before you write, map or commission anything is up to you (terms). Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the Novelan heat pump controller GLT (BACnet IP) 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 ait-deutschland Novelan heat pump controller GLT (BACnet IP)

How many BACnet points does the ait-deutschland Novelan heat pump controller GLT (BACnet IP) have?

This list has 144 BACnet objects: 43 analog inputs, 15 analog values, 30 binary inputs, 13 binary outputs, 10 multi-state inputs, 9 multi-state values, 24 accumulators. The exact set on a given unit depends on its firmware, installed options and configuration.

Which ait-deutschland Novelan heat pump controller GLT (BACnet IP) BACnet points are writable?

37 of the 144 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 ait-deutschland Novelan heat pump controller GLT (BACnet IP) BACnet documentation?

ait-deutschland does not publish it on its own website. This list comes from Betriebsanleitung Zubehör für Wärmepumpen - Anbindung an eine Gebäudeleittechnik via BACnet/IP | ModBus/TCP - Novelan GLT (83055703hDE), a copy hosted by ioBroker forum at https://forum.iobroker.net/assets/uploads/files/1732701258966-83055703hde_novelan_glt.pdf. Ask ait-deutschland or its representative for the current revision.

What are the minimum BACnet points to integrate the ait-deutschland Novelan heat pump controller GLT (BACnet IP)?

Start with MV 1 Sperre / Freigabe Wärmepumpe (Lock heat pump (1) or release 1 / 2 compressors (2 / 3)); MV 2 Betriebsart Heizen (Heating mode (1 = Automatik, 5 = Aus)); MV 3 Betriebsart Trinkwarmwasser (Hot water mode (1 = Automatik, 5 = Aus)); AV 6 Trinkwarmwasser Wunschwert (Hot water setpoint, °C); BO 1 Fehlerreset (Fault reset (1 = reset)); MI 1 Betriebszustand (Operating state (heating, DHW, defrost, off ...)); AI 1 Vorlauftemperatur (Flow temperature); AI 2 Rücklauftemperatur (Return temperature); BI 1 Selbst zurücksetzende Störung (Self-resetting fault active); BI 2 Nicht selbst zurücksetzende Störung (Latching fault active).

How do I enable BMS control of the ait-deutschland Novelan heat pump controller GLT (BACnet IP)?

MV 1 (Sperre / Freigabe Wärmepumpe) locks the heat pump or releases one or two compressors; the operating modes for heating, DHW, mixing circuits, cooling, ventilation and pool are set with MV 2-10.

Can the BMS supply sensor values to the ait-deutschland Novelan heat pump controller GLT (BACnet IP)?

The outdoor temperature can be written to AV 1 (Außentemperatur); the guide says to disconnect the heat pump's own outdoor sensor when doing so.

How do I check these points on the real Novelan heat pump controller GLT (BACnet IP)?

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.

Source: Betriebsanleitung Zubehör für Wärmepumpen - Anbindung an eine Gebäudeleittechnik via BACnet/IP | ModBus/TCP - Novelan GLT · 83055703hDE. Object names, instances and units are reproduced as published; descriptions are our own.