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Vitotrans 353

Viessmann Residential Water Heater
Vitotrans 353
Freshwater Module

Vitotrans 353

Freshwater module for DHW heating using the instantaneous water heating principle, draw-off rate up to 68 l/min depending on model

  • High draw-off rate
  • Instantaneous water heating principle
  • For wall or cylinder mounting
  • Compact design
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Features

High Draw‑Off Rate

Delivers excellent DHW performance, making it suitable for detached and two‑family houses, sports facilities, care homes, and similar buildings with variable hot water demand.

Instantaneous Water Heating Principle

Drinking water is heated only when required, ensuring constant freshness and eliminating stagnation risks.

Quick & Easy Mounting

Can be mounted on the wall or directly on the buffer cylinder. The module is pre‑installed, with the control unit and high‑efficiency circulation pump already integrated and connected.

Cascade Capability

Multiple modules can be linked in cascade (types PBMA, PBMA‑S, PBLA, PBLA‑S) without an additional external control unit, enabling scalable DHW capacity.

Control / Integrations

Integrated Control Unit

The built‑in control automatically regulates DHW temperature and flow for stable, comfortable operation.

Seamless Buffer Tank Integration

Optimised for use with Viessmann heating water buffer tanks, enabling efficient decoupling of heat generation and DHW demand.

Renewable‑Ready

Particularly suitable for integration with:

Solar thermal systems
Heat pumps
Biomass boilers
Hybrid heating systems

Flexible System Expansion

Cascade capability allows straightforward expansion to meet higher or growing hot water demand.

Technical Documents

Document Name Description Document Type Language Action
Operating Instructions Control unit for Vitotrans 353 PDF English Download

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