Viessmann Vitocal 150-A (AWO-M-E-AC-AF 151.A13) 13kW kit

£7,412.40 inc. VAT

[£6,177.00 exc. VAT]
For assistance call us on: 01260 228 822

SKU: Z023213 Categories: , , Tags: ,

Standard Installation Pack

Premium Installation Pack

Connection Set


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Vitocal 150‑A Air Source Heat Pump.

Type AWO-M-E-AC-AF 151.A

Vitocal 150‑A Heat Pump with electric drive in monoblock version with outdoor and indoor unit:

  • For room heating/cooling and DHW heating, up to 70 °C flow temperature
  • Monoblock indoor unit with heat pump control unit
  • High efficiency circulation pump for the secondary circuit
  • 4-3-way diverter valve and safety assembly
  • Integral instantaneous heating water heater
  • Integral buffer cylinder and overflow valve

Heat pump control unit for weather-compensated operation.

  • 7-inch colour touchscreen with energy cockpit
  • WiFi hotspot for local service without internet connection
  • Internet connection via WiFi
  • Control of a DHW circulation pump
  • Control of an instantaneous heating water heater
  • Active cooling control function
  • Integral heat meter
  • Setting of low-noise mode for the outdoor unit
  • Optimised energy management, e.g. in conjunction with photovoltaic system, power storage system
  • Display of energy flows in the ViCare app and ViGuide

AF Version:

  • With integral electric ribbon heater in the condensate pan
  • Permissible operating pressure: Heating water 3 bar (0.3 MPa)
  • Colour of indoor unit: Vitopearlwhite
  • Colour of outdoor unit: Vitosilver
  • Low running costs thanks to high COP (coefficient of performance) to EN 14511: Up to 5.0 at A7/W35
  • Output control and DC inverter for high efficiency in partial load operation
  • A maximum flow temperature of up to 70 °C at an outside temperature of -10 °C enables use in both new build and modernisation projects.
  • Self-optimising control of the flow rate via Viessmann Hydro AutoControl
  • Environmentally responsible, natural refrigerant R290 with a particularly low GWP of 0 (GWP = Global Warming Potential)
  • Convenient reversible design for heating and cooling
  • Especially quiet operation thanks to Advanced Acoustic Design (AAD)
  • Web-enabled through integral WiFi or service link
  • Operation, optimisation, maintenance and service via ViCare app and ViGuide
  • Guided commissioning via ViGuide

Standard delivery:

Complete heat pump in monoblock version, comprising an indoor and outdoor unit.

Indoor unit:

  • Integral 4/3-way valve for central heating/DHW heating/bypass
  • Integral high efficiency circulation pump for the secondary circuit
  • Integral instantaneous heating water heater
  • Integral 16 litre buffer cylinder
  • Integral safety valve and digital pressure gauge
  • Weather-compensated heat pump control unit with outside temperature sensor
  • Flow sensor
  • Wall mounting bracket, standard connection pipes
  • 10 l diaphragm expansion vessel

Outdoor unit:

  • Inverter-controlled compressor, 4-way diverter valve, electronic expansion valve, evaporator, condenser, EC fan
  • Factory-filled with refrigerant R290
  • Heating water filter upstream of condenser
  • Transport aid for outdoor unit
  • AF version: With integral electric ribbon heater for the condensate pan

Important Vitocal 150‑A Heat Pump Notes.

  • Heat pumps must be commissioned by Viessmann Technical Service or a specialist heat pump contractor certified by Viessmann
  • A hydraulic connection set must also be ordered to install the appliances; see “Accessories”
  • If the heat pump is being installed to modernise a heating system, a dirt separator with magnet is essential; see “Accessories”

see Technical Guide




Standard Installation Pack:
Rubber feet, flexi pipe connection set 2 x 500mm, BUS communication cable 15m, pre-plumbing jig with valves, electrical accessories for pre-plumbing jig, DHW cylinder temperature sensor, compression union connection set and 2 reducing bushes

Premium Installation Pack:
All accessories in standard pack plus outdoor unit rail end caps, AC isolator 1 phase, energy meter 1 phase and dirt separator magnetic

Connection Set:
flat face to compression union adapters for indoor unit (4 x 28mm & 2 x 22mm), reducing bush set for outdoor unit (2 x 1.25″”M – 1″”F)



Buying into Viessmann.

Viessmann Vitocal heat pumps provide customers with the comfort and peace of mind of a free parts and labour repair service subject to the terms and conditions below and the warranty period of your heat pump.
During the period of the warranty, Viessmann will at their option, repair or replace a heat pump free of charge where it suffers a mechanical or an electrical breakdown as a result of defective workmanship or materials, subject to the following conditions and exclusions.

Warranty qualification requirements

For standard warranty of 2 years, you or your installer can register the installation, using the online option available at

Great Britain:

In order for your heat pump to qualify for a warranty longer than 2 years, your installation must be registered with Viessmann within 30 days, the model must be valid for a longer warranty and must be installed by a Viessmann Trained Installer.
For the sale of extended warranties, your heat pump installer must be registered as trained by Viessmann, your installer must register your installation within 30 days using the online option available and you must pay for the extended warranty.