Photo: Viessmann

Air/water monoblocR290

Viessmann Vitocal 250-A

Air-to-water monoblock · 9 models

Monoblock with an R290 outdoor unit (ODU 250-A, 230 V or 400 V) and a wall-mounted hydraulic indoor unit (IDU-A, with built-in heating-water flow heater up to 8 kW). The Vitocal 250-A Compact adds a 190 l cylinder and was formerly sold as Vitocal 252-A; a hybrid function with Vitodens boilers is available over CAN bus.

Output4–9 kW

SCOP 35 °C4.44–5.27

SCOP 55 °C3.33–4.18

Max. flow70 °C

Datasheet Product page All Viessmann heat pumps

Grant lists

Grants depend on the exact model being on the official list. The counts below are the entries of this series we found in each list.

BAFA WEP (Germany)

159 models listed

159 models of this series are eligible in the BAFA Wärmeerzeuger-Portal, the list the German BEG heat pump grant depends on.

checked November 4, 2026 · See the entries

ZUM (Poland)

76 models listed

76 models of this series are on the Lista ZUM, which the Polish Czyste Powietrze grant requires.

checked November 4, 2026 · See the entries

Specifications

Type	Air-to-water monoblock
Heating output (datasheet)	4–9 kW
Design heat load Pdesignh (35 °C)	3.4–24.8 kW
SCOP at 35 °C	4.44–5.27
SCOP at 55 °C	3.33–4.18
Refrigerant	R290 (GWP 0.02)
Outdoor sound power	46–50 dB(A)
Max. flow temperature	70 °C
Built-in backup heater	8 kW

Heating output is the figure in the manufacturer's datasheet; the basis (nominal output at A7/W35 or B0/W35, or design heat load) differs between brands, so check the datasheet before comparing. * = design heat load Pdesignh at 35 °C from the BAFA portal.

Control and connectivity

SG Ready	Yes
Modbus	Not documented
EEBUS	Not documented
Cloud API	open API (Viessmann Developer Portal) – free Basic plan after online registration (API key, OAuth2)
§14a EnWG control	not confirmed
Local interfaces	SG Ready

Source: community.viessmann.de/viessmann/attachments/viessmann/cu...

Zerofy

Native

Zerofy controls Viessmann heat pumps natively, through the manufacturer's cloud, and moves heating and hot water into hours with surplus solar power or low prices.

Viessmann in Zerofy Setup guide

Models in this series

Model codes as the manufacturer documents them. The official list entries, with their own naming, follow below.

Vitocal 250-AVitocal 250-A CompactVitocal 252-AVitocal 250-AHIDU-AIDU-A CompactIDU-A ModularIDU-A HybridODU 250-A

Models on the BAFA list 159

Eligible in the BAFA Wärmeerzeuger-Portal on November 4, 2026. Anlagennummer is the entry's number in the portal; SCOP at 55 °C is derived from the portal's ηs value.

Model	Anlagennummer	SCOP 35 °C	SCOP 55 °C	Sound	Refrigerant	SG Ready
IDU-A 2C AWMIW.A1.19-V055 / ODU 250-A AWMOF-251.A1.04-230-V001	16017953	4.57	3.33	46.0 dB(A)	R290	Yes
IDU-A 2C AWMIW.A1.19-V055 / ODU 250-A AWMOF-251.A1.04-230-V002	16017954	4.57	3.33	46.0 dB(A)	R290	Yes
IDU-A 2C AWMIW.A1.19-V055 / ODU 250-A AWMOF-251.A1.06-230-V001	16017965	4.71	3.6	47.0 dB(A)	R290	Yes
IDU-A 2C AWMIW.A1.19-V055 / ODU 250-A AWMOF-251.A1.06-230-V002	16017966	4.71	3.6	47.0 dB(A)	R290	Yes
IDU-A 2C AWMIW.A1.19-V055 / ODU 250-A AWMOF-251.A1.08-230-V001	16017977	4.44	3.58	48.0 dB(A)	R290	Yes
IDU-A 2C AWMIW.A1.19-V055 / ODU 250-A AWMOF-251.A1.08-230-V002	16017978	4.44	3.58	48.0 dB(A)	R290	Yes
IDU-A 2C AWMIW.A1.19-V055 / ODU 250-A AWMOF-251.A1.10-230-V001	16017857	5.01	3.88	49.0 dB(A)	R290	Yes
IDU-A 2C AWMIW.A1.19-V055 / ODU 250-A AWMOF-251.A1.10-230-V002	16017858	5.01	3.88	49.0 dB(A)	R290	Yes
IDU-A 2C AWMIW.A1.19-V055 / ODU 250-A AWMOF-251.A1.10-400-V001	16017881	5.27	4.18	49.0 dB(A)	R290	Yes
IDU-A 2C AWMIW.A1.19-V055 / ODU 250-A AWMOF-251.A1.10-400-V002	16017882	5.27	4.18	49.0 dB(A)	R290	Yes
IDU-A 2C AWMIW.A1.19-V055 / ODU 250-A AWMOF-251.A1.13-230-V001	16017869	4.96	3.93	50.0 dB(A)	R290	Yes
IDU-A 2C AWMIW.A1.19-V055 / ODU 250-A AWMOF-251.A1.13-230-V002	16017870	4.96	3.93	50.0 dB(A)	R290	Yes
IDU-A 2C AWMIW.A1.19-V055 / ODU 250-A AWMOF-251.A1.13-400-V001	16017893	5.09	4.13	50.0 dB(A)	R290	Yes
IDU-A 2C AWMIW.A1.19-V055 / ODU 250-A AWMOF-251.A1.13-400-V002	16017894	5.09	4.13	50.0 dB(A)	R290	Yes
IDU-A 2C AWMIW.A1.19-V055 ODU 250-A AWMOF-251.A1.16-400-V001	16017833	4.85	3.9	48.0 dB(A)	R290	Yes
IDU-A 2C AWMIW.A1.19-V055 ODU 250-A AWMOF-251.A1.16-400-V002	16017836	4.85	3.9	48.0 dB(A)	R290	Yes
IDU-A 2C AWMIW.A1.19-V055 ODU 250-A AWMOF-251.A1.19-400-V001	16017845	4.86	3.88	48.0 dB(A)	R290	Yes
IDU-A 2C AWMIW.A1.19-V055 ODU 250-A AWMOF-251.A1.19-400-V002	16017848	4.86	3.88	48.0 dB(A)	R290	Yes
IDU-A AWMIW.A1.19-V052 / ODU 250-A AWMOF-251.A1.04-230-V001	16017951	4.57	3.33	46.0 dB(A)	R290	Yes
IDU-A AWMIW.A1.19-V052 / ODU 250-A AWMOF-251.A1.04-230-V002	16017952	4.57	3.33	46.0 dB(A)	R290	Yes
IDU-A AWMIW.A1.19-V052 / ODU 250-A AWMOF-251.A1.06-230-V001	16017963	4.71	3.6	47.0 dB(A)	R290	Yes
IDU-A AWMIW.A1.19-V052 / ODU 250-A AWMOF-251.A1.06-230-V002	16017964	4.71	3.6	47.0 dB(A)	R290	Yes
IDU-A AWMIW.A1.19-V052 / ODU 250-A AWMOF-251.A1.08-230-V001	16017975	4.44	3.58	48.0 dB(A)	R290	Yes
IDU-A AWMIW.A1.19-V052 / ODU 250-A AWMOF-251.A1.08-230-V002	16017976	4.44	3.58	48.0 dB(A)	R290	Yes
IDU-A AWMIW.A1.19-V052 / ODU 250-A AWMOF-251.A1.10-230-V001	16017855	5.01	3.88	49.0 dB(A)	R290	Yes
IDU-A AWMIW.A1.19-V052 / ODU 250-A AWMOF-251.A1.10-230-V002	16017856	5.01	3.88	49.0 dB(A)	R290	Yes
IDU-A AWMIW.A1.19-V052 / ODU 250-A AWMOF-251.A1.10-400-V001	16017879	5.27	4.18	49.0 dB(A)	R290	Yes
IDU-A AWMIW.A1.19-V052 / ODU 250-A AWMOF-251.A1.10-400-V002	16017880	5.27	4.18	49.0 dB(A)	R290	Yes
IDU-A AWMIW.A1.19-V052 / ODU 250-A AWMOF-251.A1.13-230-V001	16017867	4.96	3.93	50.0 dB(A)	R290	Yes
IDU-A AWMIW.A1.19-V052 / ODU 250-A AWMOF-251.A1.13-230-V002	16017868	4.96	3.93	50.0 dB(A)	R290	Yes
IDU-A AWMIW.A1.19-V052 / ODU 250-A AWMOF-251.A1.13-400-V001	16017891	5.09	4.13	50.0 dB(A)	R290	Yes
IDU-A AWMIW.A1.19-V052 / ODU 250-A AWMOF-251.A1.13-400-V002	16017892	5.09	4.13	50.0 dB(A)	R290	Yes
IDU-A AWMIW.A1.19-V052 ODU 250-A AWMOF-251.A1.16-400-V001	16017831	4.86	3.88	48.0 dB(A)	R290	Yes
IDU-A AWMIW.A1.19-V052 ODU 250-A AWMOF-251.A1.16-400-V002	16017834	4.85	3.9	48.0 dB(A)	R290	Yes
IDU-A AWMIW.A1.19-V052 ODU 250-A AWMOF-251.A1.19-400-V001	16017843	4.86	3.88	48.0 dB(A)	R290	Yes
IDU-A AWMIW.A1.19-V052 ODU 250-A AWMOF-251.A1.19-400-V002	16017846	4.86	3.88	48.0 dB(A)	R290	Yes
IDU-A Compact 2C AWMIT.A1.19-V056 / ODU 250-A AWMOF-251.A1.04-230-V001	16017957	4.57	3.33	46.0 dB(A)	R290	Yes
IDU-A Compact 2C AWMIT.A1.19-V056 / ODU 250-A AWMOF-251.A1.04-230-V002	16017958	4.57	3.33	46.0 dB(A)	R290	Yes
IDU-A Compact 2C AWMIT.A1.19-V056 / ODU 250-A AWMOF-251.A1.06-230-V001	16017969	4.71	3.6	47.0 dB(A)	R290	Yes
IDU-A Compact 2C AWMIT.A1.19-V056 / ODU 250-A AWMOF-251.A1.06-230-V002	16017970	4.71	3.6	47.0 dB(A)	R290	Yes
IDU-A Compact 2C AWMIT.A1.19-V056 / ODU 250-A AWMOF-251.A1.08-230-V001	16017981	4.44	3.58	48.0 dB(A)	R290	Yes
IDU-A Compact 2C AWMIT.A1.19-V056 / ODU 250-A AWMOF-251.A1.08-230-V002	16017982	4.44	3.58	48.0 dB(A)	R290	Yes
IDU-A Compact 2C AWMIT.A1.19-V056 / ODU 250-A AWMOF-251.A1.10-230-V001	16017861	5.01	3.88	49.0 dB(A)	R290	Yes
IDU-A Compact 2C AWMIT.A1.19-V056 / ODU 250-A AWMOF-251.A1.10-230-V002	16017862	5.01	3.88	49.0 dB(A)	R290	Yes
IDU-A Compact 2C AWMIT.A1.19-V056 / ODU 250-A AWMOF-251.A1.10-400-V001	16017885	5.27	4.18	49.0 dB(A)	R290	Yes
IDU-A Compact 2C AWMIT.A1.19-V056 / ODU 250-A AWMOF-251.A1.10-400-V002	16017886	5.27	4.18	49.0 dB(A)	R290	Yes
IDU-A Compact 2C AWMIT.A1.19-V056 / ODU 250-A AWMOF-251.A1.13-230-V001	16017873	4.96	3.93	50.0 dB(A)	R290	Yes
IDU-A Compact 2C AWMIT.A1.19-V056 / ODU 250-A AWMOF-251.A1.13-230-V002	16017874	4.96	3.93	50.0 dB(A)	R290	Yes
IDU-A Compact 2C AWMIT.A1.19-V056 / ODU 250-A AWMOF-251.A1.13-400-V001	16017897	5.09	4.13	50.0 dB(A)	R290	Yes
IDU-A Compact 2C AWMIT.A1.19-V056 / ODU 250-A AWMOF-251.A1.13-400-V002	16017898	5.09	4.13	50.0 dB(A)	R290	Yes
IDU-A Compact 2C AWMIT.A1.19-V056 ODU 250-A AWMOF-251.A1.16-400-V001	16017838	4.85	3.9	48.0 dB(A)	R290	Yes
IDU-A Compact 2C AWMIT.A1.19-V056 ODU 250-A AWMOF-251.A1.16-400-V002	16017840	4.85	3.9	48.0 dB(A)	R290	Yes
IDU-A Compact 2C AWMIT.A1.19-V056 ODU 250-A AWMOF-251.A1.19-400-V001	16017850	4.86	3.88	48.0 dB(A)	R290	Yes
IDU-A Compact 2C AWMIT.A1.19-V056 ODU 250-A AWMOF-251.A1.19-400-V002	16017852	4.86	3.88	48.0 dB(A)	R290	Yes
IDU-A Compact AWMIT.A1.19-V053 / ODU 250-A AWMOF-251.A1.04-230-V001	16017955	4.57	3.33	46.0 dB(A)	R290	Yes
IDU-A Compact AWMIT.A1.19-V053 / ODU 250-A AWMOF-251.A1.04-230-V002	16017956	4.57	3.33	46.0 dB(A)	R290	Yes
IDU-A Compact AWMIT.A1.19-V053 / ODU 250-A AWMOF-251.A1.06-230-V001	16017967	4.71	3.6	47.0 dB(A)	R290	Yes
IDU-A Compact AWMIT.A1.19-V053 / ODU 250-A AWMOF-251.A1.06-230-V002	16017968	4.71	3.6	47.0 dB(A)	R290	Yes
IDU-A Compact AWMIT.A1.19-V053 / ODU 250-A AWMOF-251.A1.08-230-V001	16017979	4.44	3.58	48.0 dB(A)	R290	Yes
IDU-A Compact AWMIT.A1.19-V053 / ODU 250-A AWMOF-251.A1.08-230-V002	16017980	4.44	3.58	48.0 dB(A)	R290	Yes
IDU-A Compact AWMIT.A1.19-V053 / ODU 250-A AWMOF-251.A1.10-230-V001	16017859	5.01	3.88	49.0 dB(A)	R290	Yes
IDU-A Compact AWMIT.A1.19-V053 / ODU 250-A AWMOF-251.A1.10-230-V002	16017860	5.01	3.88	49.0 dB(A)	R290	Yes
IDU-A Compact AWMIT.A1.19-V053 / ODU 250-A AWMOF-251.A1.10-400-V001	16017883	5.27	4.18	49.0 dB(A)	R290	Yes
IDU-A Compact AWMIT.A1.19-V053 / ODU 250-A AWMOF-251.A1.10-400-V002	16017884	5.27	4.18	49.0 dB(A)	R290	Yes
IDU-A Compact AWMIT.A1.19-V053 / ODU 250-A AWMOF-251.A1.13-230-V001	16017871	4.96	3.93	50.0 dB(A)	R290	Yes
IDU-A Compact AWMIT.A1.19-V053 / ODU 250-A AWMOF-251.A1.13-230-V002	16017872	4.96	3.93	50.0 dB(A)	R290	Yes
IDU-A Compact AWMIT.A1.19-V053 / ODU 250-A AWMOF-251.A1.13-400-V001	16017895	5.09	4.13	50.0 dB(A)	R290	Yes
IDU-A Compact AWMIT.A1.19-V053 / ODU 250-A AWMOF-251.A1.13-400-V002	16017896	5.09	4.13	50.0 dB(A)	R290	Yes
IDU-A Compact AWMIT.A1.19-V053 ODU 250-A AWMOF-251.A1.16-400-V001	16017837	4.85	3.9	48.0 dB(A)	R290	Yes
IDU-A Compact AWMIT.A1.19-V053 ODU 250-A AWMOF-251.A1.16-400-V002	16017839	4.85	3.9	48.0 dB(A)	R290	Yes
IDU-A Compact AWMIT.A1.19-V053 ODU 250-A AWMOF-251.A1.19-400-V001	16017849	4.86	3.88	48.0 dB(A)	R290	Yes
IDU-A Compact AWMIT.A1.19-V053 ODU 250-A AWMOF-251.A1.19-400-V002	16017851	4.86	3.88	48.0 dB(A)	R290	Yes
IDU-A Hybrid HWMIW.A1.19-V054 / ODU 250-A AWMOF-251.A1.04-230-V001	16017961	4.57	3.33	46.0 dB(A)	R290	Yes
IDU-A Hybrid HWMIW.A1.19-V054 / ODU 250-A AWMOF-251.A1.04-230-V002	16017962	4.57	3.33	46.0 dB(A)	R290	Yes
IDU-A Hybrid HWMIW.A1.19-V054 / ODU 250-A AWMOF-251.A1.06-230-V001	16017973	4.71	3.6	47.0 dB(A)	R290	Yes
IDU-A Hybrid HWMIW.A1.19-V054 / ODU 250-A AWMOF-251.A1.06-230-V002	16017974	4.71	3.6	47.0 dB(A)	R290	Yes
IDU-A Hybrid HWMIW.A1.19-V054 / ODU 250-A AWMOF-251.A1.08-230-V001	16017985	4.44	3.58	48.0 dB(A)	R290	Yes
IDU-A Hybrid HWMIW.A1.19-V054 / ODU 250-A AWMOF-251.A1.08-230-V002	16017986	4.44	3.58	48.0 dB(A)	R290	Yes
IDU-A Hybrid HWMIW.A1.19-V054 / ODU 250-A AWMOF-251.A1.10-230-V001	16017865	5.01	3.88	49.0 dB(A)	R290	Yes
IDU-A Hybrid HWMIW.A1.19-V054 / ODU 250-A AWMOF-251.A1.10-230-V002	16017866	5.01	3.88	49.0 dB(A)	R290	Yes
IDU-A Hybrid HWMIW.A1.19-V054 / ODU 250-A AWMOF-251.A1.10-400-V001	16017889	5.27	4.18	49.0 dB(A)	R290	Yes
IDU-A Hybrid HWMIW.A1.19-V054 / ODU 250-A AWMOF-251.A1.10-400-V002	16017890	5.27	4.18	49.0 dB(A)	R290	Yes
IDU-A Hybrid HWMIW.A1.19-V054 / ODU 250-A AWMOF-251.A1.13-230-V001	16017877	4.96	3.93	50.0 dB(A)	R290	Yes
IDU-A Hybrid HWMIW.A1.19-V054 / ODU 250-A AWMOF-251.A1.13-230-V002	16017878	4.96	3.93	50.0 dB(A)	R290	Yes
IDU-A Hybrid HWMIW.A1.19-V054 / ODU 250-A AWMOF-251.A1.13-400-V001	16017901	5.09	4.13	50.0 dB(A)	R290	Yes
IDU-A Hybrid HWMIW.A1.19-V054 / ODU 250-A AWMOF-251.A1.13-400-V002	16017902	5.09	4.13	50.0 dB(A)	R290	Yes
IDU-A Hybrid HWMIW.A1.19-V054 ODU 250-A AWMOF-251.A1.16-400-V001	16017841	4.85	3.9	48.0 dB(A)	R290	Yes
IDU-A Hybrid HWMIW.A1.19-V054 ODU 250-A AWMOF-251.A1.16-400-V002	16017842	4.85	3.9	48.0 dB(A)	R290	Yes
IDU-A Hybrid HWMIW.A1.19-V054 ODU 250-A AWMOF-251.A1.19-400-V001	16017853	4.86	3.88	48.0 dB(A)	R290	Yes
IDU-A Hybrid HWMIW.A1.19-V054 ODU 250-A AWMOF-251.A1.19-400-V002	16017854	4.86	3.88	48.0 dB(A)	R290	Yes
IDU-A Modular AWMIW.A1.19-V051 / ODU 250-A AWMOF-251.A1.04-230-V001	16017959	4.57	3.33	46.0 dB(A)	R290	Yes
IDU-A Modular AWMIW.A1.19-V051 / ODU 250-A AWMOF-251.A1.04-230-V002	16017960	4.57	3.33	46.0 dB(A)	R290	Yes
IDU-A Modular AWMIW.A1.19-V051 / ODU 250-A AWMOF-251.A1.06-230-V001	16017971	4.71	3.6	47.0 dB(A)	R290	Yes
IDU-A Modular AWMIW.A1.19-V051 / ODU 250-A AWMOF-251.A1.06-230-V002	16017972	4.71	3.6	47.0 dB(A)	R290	Yes
IDU-A Modular AWMIW.A1.19-V051 / ODU 250-A AWMOF-251.A1.08-230-V001	16017983	4.44	3.58	48.0 dB(A)	R290	Yes
IDU-A Modular AWMIW.A1.19-V051 / ODU 250-A AWMOF-251.A1.08-230-V002	16017984	4.44	3.58	48.0 dB(A)	R290	Yes
IDU-A Modular AWMIW.A1.19-V051 / ODU 250-A AWMOF-251.A1.10-230-V001	16017863	5.01	3.88	49.0 dB(A)	R290	Yes
IDU-A Modular AWMIW.A1.19-V051 / ODU 250-A AWMOF-251.A1.10-230-V002	16017864	5.01	3.88	49.0 dB(A)	R290	Yes
IDU-A Modular AWMIW.A1.19-V051 / ODU 250-A AWMOF-251.A1.10-400-V001	16017887	5.27	4.18	49.0 dB(A)	R290	Yes
IDU-A Modular AWMIW.A1.19-V051 / ODU 250-A AWMOF-251.A1.10-400-V002	16017888	5.27	4.18	49.0 dB(A)	R290	Yes
IDU-A Modular AWMIW.A1.19-V051 / ODU 250-A AWMOF-251.A1.13-230-V001	16017875	4.96	3.93	50.0 dB(A)	R290	Yes
IDU-A Modular AWMIW.A1.19-V051 / ODU 250-A AWMOF-251.A1.13-230-V002	16017876	4.96	3.93	50.0 dB(A)	R290	Yes
IDU-A Modular AWMIW.A1.19-V051 / ODU 250-A AWMOF-251.A1.13-400-V001	16017899	5.09	4.13	50.0 dB(A)	R290	Yes
IDU-A Modular AWMIW.A1.19-V051 / ODU 250-A AWMOF-251.A1.13-400-V002	16017900	5.09	4.13	50.0 dB(A)	R290	Yes
IDU-A Modular AWMIW.A1.19-V051 ODU 250-A AWMOF-251.A1.16-400-V001	16017832	4.85	3.9	48.0 dB(A)	R290	Yes
IDU-A Modular AWMIW.A1.19-V051 ODU 250-A AWMOF-251.A1.16-400-V002	16017835	4.85	3.9	48.0 dB(A)	R290	Yes
IDU-A Modular AWMIW.A1.19-V051 ODU 250-A AWMOF-251.A1.19-400-V001	16017844	4.86	3.88	48.0 dB(A)	R290	Yes
IDU-A Modular AWMIW.A1.19-V051 ODU 250-A AWMOF-251.A1.19-400-V002	16017847	4.86	3.88	48.0 dB(A)	R290	Yes
Vitocal 250-A AWO-E-AC 251.A16	16014378	4.85	3.9	48.0 dB(A)	R290	Yes
Vitocal 250-A AWO-E-AC 251.A16 2C	16014380	4.85	3.9	48.0 dB(A)	R290	Yes
Vitocal 250-A AWO-E-AC 251.A19	16014379	4.86	3.88	48.0 dB(A)	R290	Yes
Vitocal 250-A AWO-E-AC 251.A19 2C	16014381	4.86	3.88	48.0 dB(A)	R290	Yes
Vitocal 250-A AWO-E-AC-AF 251.A16	16014382	4.85	3.9	48.0 dB(A)	R290	Yes
Vitocal 250-A AWO-E-AC-AF 251.A16 2C	16014384	4.85	3.9	48.0 dB(A)	R290	Yes
Vitocal 250-A AWO-E-AC-AF 251.A19	16014383	4.86	3.88	48.0 dB(A)	R290	Yes
Vitocal 250-A AWO-E-AC-AF 251.A19 2C	16014385	4.86	3.88	48.0 dB(A)	R290	Yes
Vitocal 250-A PRO, Typ AWO-AC-AF 251.A40	16015066	4.85	3.85	58.2 dB(A)	R290	Yes
Vitocal 250-A PRO, Typ AWO-AC-AF 251.B40	16017525	4.85	3.85	58.2 dB(A)	R290	Yes
Vitocal 250-A Typ AWO(-M)-E-AC/AWO(-M)-E-AC-(AF) 251.A10	16002828	5.01	3.88	49.0 dB(A)	R290	Yes
Vitocal 250-A Typ AWO(-M)-E-AC/AWO(-M)-E-AC-(AF) 251.A10 2C	16002829	5.01	3.88	49.0 dB(A)	R290	Yes
Vitocal 250-A Typ AWO(-M)-E-AC/AWO(-M)-E-AC-(AF) 251.A13	16002832	4.96	3.93	50.0 dB(A)	R290	Yes
Vitocal 250-A Typ AWO(-M)-E-AC/AWO(-M)-E-AC-(AF) 251.A13 2C	16002833	4.96	3.93	50.0 dB(A)	R290	Yes
Vitocal 250-A Typ AWO-M-E-AC/AWO-M-E-AC-AF 251.A04	16010932	4.57	3.33	46.0 dB(A)	R290	Yes
Vitocal 250-A Typ AWO-M-E-AC/AWO-M-E-AC-AF 251.A04 2C	16010935	4.57	3.33	46.0 dB(A)	R290	Yes
Vitocal 250-A Typ AWO-M-E-AC/AWO-M-E-AC-AF 251.A06	16010933	4.71	3.6	47.0 dB(A)	R290	Yes
Vitocal 250-A Typ AWO-M-E-AC/AWO-M-E-AC-AF 251.A06 2C	16010936	4.71	3.6	47.0 dB(A)	R290	Yes
Vitocal 250-A Typ AWO-M-E-AC/AWO-M-E-AC-AF 251.A08	16010934	4.44	3.58	48.0 dB(A)	R290	Yes
Vitocal 250-A Typ AWO-M-E-AC/AWO-M-E-AC-AF 251.A08 2C	16010937	4.44	3.58	48.0 dB(A)	R290	Yes
Vitocal 250-AH HAWO-AC 252.A10	16002915	5.01	3.88	49.0 dB(A)	R290	Yes
Vitocal 250-AH HAWO-AC 252.A13	16002917	4.96	3.93	50.0 dB(A)	R290	Yes
Vitocal 250-AH HAWO-AC 252.A16	16014394	4.85	3.9	48.0 dB(A)	R290	Yes
Vitocal 250-AH HAWO-AC 252.A19	16014395	4.86	3.88	48.0 dB(A)	R290	Yes
Vitocal 250-AH HAWO-AC-AF 252.A10	16002916	5.01	3.88	49.0 dB(A)	R290	Yes
Vitocal 250-AH HAWO-AC-AF 252.A13	16002918	4.96	3.93	50.0 dB(A)	R290	Yes
Vitocal 250-AH HAWO-AC-AF 252.A16	16014396	4.85	3.9	48.0 dB(A)	R290	Yes
Vitocal 250-AH HAWO-AC-AF 252.A19	16014397	4.86	3.88	48.0 dB(A)	R290	Yes
Vitocal 250-AH HAWO-M-AC 252.A10	16002913	5.01	3.88	49.0 dB(A)	R290	Yes
Vitocal 250-AH HAWO-M-AC-AF 252.A10	16002914	5.01	3.88	49.0 dB(A)	R290	Yes
Vitocal 250-AH Typ HAWO-M-AC/HAWO-M-AC-AF 252.A04	16011880	4.57	3.33	46.0 dB(A)	R290	Yes
Vitocal 250-AH Typ HAWO-M-AC/HAWO-M-AC-AF 252.A06	16011881	4.71	3.6	47.0 dB(A)	R290	Yes
Vitocal 250-AH Typ HAWO-M-AC/HAWO-M-AC-AF 252.A08	16011882	4.44	3.58	48.0 dB(A)	R290	Yes
Vitocal 252-A AWOT-E-AC 251.A16	16014386	4.85	3.9	48.0 dB(A)	R290	Yes
Vitocal 252-A AWOT-E-AC 251.A16 2C	16014388	4.85	3.9	48.0 dB(A)	R290	Yes
Vitocal 252-A AWOT-E-AC 251.A19	16014387	4.86	3.88	48.0 dB(A)	R290	Yes
Vitocal 252-A AWOT-E-AC 251.A19 2C	16014389	4.86	3.88	48.0 dB(A)	R290	Yes
Vitocal 252-A AWOT-E-AC-AF 251.A16	16014390	4.85	3.9	48.0 dB(A)	R290	Yes
Vitocal 252-A AWOT-E-AC-AF 251.A16 2C	16014392	4.85	3.9	48.0 dB(A)	R290	Yes
Vitocal 252-A AWOT-E-AC-AF 251.A19	16014391	4.86	3.88	48.0 dB(A)	R290	Yes
Vitocal 252-A AWOT-E-AC-AF 251.A19 2C	16014393	4.86	3.88	48.0 dB(A)	R290	Yes
Vitocal 252-A Typ AWOT(-M)-E-AC/AWOT(-M)-E-AC-(AF) 251.A10	16002830	5.01	3.88	49.0 dB(A)	R290	Yes
Vitocal 252-A Typ AWOT(-M)-E-AC/AWOT(-M)-E-AC-(AF) 251.A10 2C	16002831	5.01	3.88	49.0 dB(A)	R290	Yes
Vitocal 252-A Typ AWOT(-M)-E-AC/AWOT(-M)-E-AC-(AF) 251.A13	16002834	4.96	3.93	50.0 dB(A)	R290	Yes
Vitocal 252-A Typ AWOT(-M)-E-AC/AWOT(-M)-E-AC-(AF) 251.A13 2C	16002835	4.96	3.93	50.0 dB(A)	R290	Yes
Vitocal 252-A Typ AWOT-M-E-AC/AWOT-M-E-AC-AF 251.A04	16010938	4.57	3.33	46.0 dB(A)	R290	Yes
Vitocal 252-A Typ AWOT-M-E-AC/AWOT-M-E-AC-AF 251.A04 2C	16010941	4.57	3.33	46.0 dB(A)	R290	Yes
Vitocal 252-A Typ AWOT-M-E-AC/AWOT-M-E-AC-AF 251.A06	16010939	4.71	3.6	47.0 dB(A)	R290	Yes
Vitocal 252-A Typ AWOT-M-E-AC/AWOT-M-E-AC-AF 251.A06 2C	16010942	4.71	3.6	47.0 dB(A)	R290	Yes
Vitocal 252-A Typ AWOT-M-E-AC/AWOT-M-E-AC-AF 251.A08	16010940	4.44	3.58	48.0 dB(A)	R290	Yes
Vitocal 252-A Typ AWOT-M-E-AC/AWOT-M-E-AC-AF 251.A08 2C	16011246	4.44	3.58	48.0 dB(A)	R290	Yes

Models on the ZUM list 76

On the Lista ZUM on November 4, 2026, with the list's own device number.

Model	ZUM id
AWMIT.A 1.19-V053/ AWMOF- 251.A1.16 -400-V002	PW-919009
AWMIT.A 1.19-V053/ AWMOF- 251.A1.19 -400-V002	PW-719010
AWMIT.A 1.19-V056/ AWMOF- 251.A1.16 -400-V002	PW-119013
AWMIT.A 1.19-V056/ AWMOF- 251.A1.19 -400-V002	PW-319012
AWMIT.A1.19-V053/ AWMOF-251.A1.04-230-V002	PW-818977
AWMIT.A1.19-V053/ AWMOF-251.A1.06-230-V002	PW-018976
AWMIT.A1.19-V053/ AWMOF-251.A1.08-230-V002	PW-218975
AWMIT.A1.19-V056/ AWMOF-251.A1.04-230-V002	PW-518974
AWMIT.A1.19-V056/ AWMOF-251.A1.06-230-V002	PW-718973
AWMIT.A1.19-V056/ AWMOF-251.A1.08-230-V002	PW-918972
AWMIW.A 1.19-V051,AWMOF- 251.A1.10-400-V002	PW-518894
AWMIW.A 1.19-V051,AWMOF- 251.A1.13 -400-V002	PW-218895
AWMIW.A 1.19-V051/ AWMOF- 251.A1.16 -400-V002	PW-219003
AWMIW.A 1.19-V051/ AWMOF- 251.A1.19 -400-V002	PW-019004
AWMIW.A1.19-V051/ AWMOF-251.A1.04-230-V002	PW-218980
AWMIW.A1.19-V051/ AWMOF-251.A1.06-230-V002	PW-418979
AWMIW.A1.19-V051/ AWMOF-251.A1.08-230-V002	PW-618978
AWMOF-2 51.A1.04- 230-V002 AWMIW.A 1.19-V055	PW-918991
AWMOF-2 51.A1.10- 400-V002, AWMIW.A 1.19-V052	PW-618898
AWMOF-2 51.A1.10- 400-V002, AWMIW.A 1.19-V055	PW-018900
AWMOF-2 51.A1.10- 400-V002, HWMIW.A 1.19-V054	PW-018896
AWMOF-2 51.A1.13- 400-V002, AWMIW.A 1.19-V052	PW-418899
AWMOF-2 51.A1.13- 400-V002, AWMIW.A 1.19-V055	PW-818901
AWMOF-2 51.A1.19- 400-V002/ AWMIW.A 1.19-V055	PW-819000
AWMOF-2 51.A1.19- 400-V002/ HWMIW.A 1.19-V054	PW-419002
AWMOF-251.A1.04-230-V002/ AWMIW.A1.19-V052	PW-918986
AWMOF-251.A1.04-230-V002/ HWMIW.A1.19-V054	PW-618983
AWMOF-251.A1.06-230-V002/ AWMIW.A1.19-V052	PW-118985
AWMOF-251.A1.06-230-V002/ AWMIW.A1.19-V055	PW-118990
AWMOF-251.A1.06-230-V002/ HWMIW.A1.19-V054	PW-818982
AWMOF-251.A1.08-230-V002/ AWMIW.A1.19-V052	PW-418984
AWMOF-251.A1.08-230-V002/ AWMIW.A1.19-V055	PW-718987
AWMOF-251.A1.08-230-V002/ HWMIW.A1.19-V054	PW-018981
AWMOF-251.A1.10-400-V002/ AWMIT.A1.19-V053	PW-818835
AWMOF-251.A1.10-400-V002/ AWMIT.A1.19-V056	PW-618841
AWMOF-251.A1.13- 400-V002, HWMIW.A 1.19-V054	PW-818897
AWMOF-251.A1.13-400-V002/ AWMIT.A1.19-V053	PW-618836
AWMOF-251.A1.13-400-V002/ AWMIT.A1.19-V056	PW-418842
AWMOF-251.A1.16- 400-V002/ AWMIW.A 1.19-V052	PW-018995
AWMOF-251.A1.16- 400-V002/ AWMIW.A 1.19-V055	PW-218999
AWMOF-251.A1.16- 400-V002/ HWMIW.A 1.19-V054	PW-619001
AWMOF-251.A1.19- 400-V002/ AWMIW.A 1.19-V052	PW-618997
Vitocal 250-A/ AWO-E-AC-AF 251.A10	PW-816855
Vitocal 250-A/ AWO-E-AC-AF 251.A10 2C	PW-616856
Vitocal 250-A/ AWO-E-AC-AF 251.A13	PW-016859
Vitocal 250-A/ AWO-E-AC-AF 251.A13 2C	PW-616861
Vitocal 250-A/ AWO-E-AC-AF 251.A16	PW-617040
Vitocal 250-A/ AWO-E-AC-AF 251.A16 2C	PW-417041
Vitocal 250-A/ AWO-E-AC-AF 251.A19	PW-917034
Vitocal 250-A/ AWO-E-AC-AF 251.A19 2C	PW-617035
Vitocal 250-A/ AWO-M-E-AC-AF 251.A04	PW-812616
Vitocal 250-A/ AWO-M-E-AC-AF 251.A04 2C	PW-212619
Vitocal 250-A/ AWO-M-E-AC-AF 251.A06	PW-612617
Vitocal 250-A/ AWO-M-E-AC-AF 251.A06 2C	PW-012620
Vitocal 250-A/ AWO-M-E-AC-AF 251.A08	PW-412618
Vitocal 250-A/ AWO-M-E-AC-AF 251.A08 2C	PW-812621
Vitocal 250-AH HAWO-AC-AF 252.A16	PW-217037
Vitocal 250-AH HAWO-AC-AF 252.A19	PW-417036
Vitocal 250-AH/ HAWO-AC-AF 252.A13	PW-216863
Vitocal 250-AH/ HAWO-M-AC-AF 252.A04	PW-112747
Vitocal 250-AH/ HAWO-M-AC-AF 252.A06	PW-912748
Vitocal 250-AH/ HAWO-M-AC-AF 252.A08	PW-712749
Vitocal 252-A/ AWOT-E-AC-AF 251.A10	PW-716851
Vitocal 252-A/ AWOT-E-AC-AF 251.A10 2C	PW-516852
Vitocal 252-A/ AWOT-E-AC-AF 251.A13	PW-316853
Vitocal 252-A/ AWOT-E-AC-AF 251.A13 2C	PW-116854
Vitocal 252-A/ AWOT-E-AC-AF 251.A16	PW-017038
Vitocal 252-A/ AWOT-E-AC-AF 251.A16 2C	PW-817039
Vitocal 252-A/ AWOT-E-AC-AF 251.A19	PW-317032
Vitocal 252-A/ AWOT-E-AC-AF 251.A19 2C	PW-117033
Vitocal 252-A/ AWOT-M-E-AC-AF 251.A04	PW-612622
Vitocal 252-A/ AWOT-M-E-AC-AF 251.A04 2C	PW-512627
Vitocal 252-A/ AWOT-M-E-AC-AF 251.A06	PW-412623
Vitocal 252-A/ AWOT-M-E-AC-AF 251.A06 2C	PW-712626
Vitocal 252-A/ AWOT-M-E-AC-AF 251.A08	PW-212624
Vitocal 252-A/ AWOT-M-E-AC-AF 251.A08 2C	PW-912625

Entries as published in the official lists on the date shown; names and numbers are copied verbatim. Check the list for your exact model before you order.

More Viessmann heat pumps

Viessmann Vitocal 150-A Air/water monobloc · R290 BAFA 84 models listed

Viessmann Vitocal 200-A / 200-A ie Air/water monobloc · R290 BAFA 11 models listed

Viessmann Vitocal 200-S / 222-S Air/water split · R32 BAFA 38 models listed

Viessmann Vitocal 300-G ie Ground source · R290 BAFA 6 models listed

Viessmann Vitocal 222-G / 333-G Ground source · R410A BAFA 6 models listed

Viessmann Vitocal 350-G Ground source · R410A BAFA 4 models listed

Viessmann Vitocal 262-A Hot water · R290 BAFA Not confirmed

Viessmann Vitocal 060-A Hot water · R290 BAFA Not confirmed

All Viessmann heat pumps

Sources

Datasheet: www.viessmann.de/content/dam/public-brands/master/products/heat-pump/vitocal-...
Product page: www.viessmann.de/de/produkte/waermepumpe/vitocal-250-a.html
Control and connectivity: community.viessmann.de/viessmann/attachments/viessmann/customers-heatpump-hyb...
BAFA Wärmeerzeuger-Portal – Wärmepumpen – checked November 4, 2026
Lista ZUM (Instytut Ochrony Środowiska) – checked November 4, 2026
EEBUS certified devices – checked November 2, 2026

All figures are taken from the manufacturers' datasheets and the official BAFA and ZUM lists on the date shown and may have changed since. This is not grant advice – check the list and your grant conditions before you order. Zerofy is not affiliated with any of the manufacturers listed.

SG Ready is a label of the Bundesverband Wärmepumpe (BWP) e.V.; “Yes” means the manufacturer documents the two-input interface or declares it on the BAFA portal, not that the series carries the BWP label – the label list is at waermepumpe.de. EEBUS is a standard of the EEBus Initiative e.V.; Modbus is a registered trademark of Schneider Electric, licensed to the Modbus Organization. Product names, logos and photos belong to their manufacturers and are shown to identify the products. Grant data: BAFA Wärmeerzeuger-Portal and Lista ZUM (IOŚ-PIB) as of the dates shown; the SCOP at 55 °C in the BAFA tables is calculated by Zerofy from the portal's ηs value.

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