Compact gas condensing technology with high hot water comfort
The Vitodens 343‑F combines efficient gas condensing heating with integrated hot water storage, intelligent control, and smart connectivity—delivering reliable comfort, low emissions, and advanced digital operation for modern homes.
Digital boiler and heating circuit control with sliding reduced boiler water temperature.
Suitable for:
One direct heating circuit (without mixer)
Up to three mixed heating circuits via extension sets (package or accessories)
Two pump outputs for:
Accumulator charge pump (factory‑connected)
Secondary heating circuit pump or DHW circulation pump (depending on hydraulics)
Separate schedules for:
Heating circuits
DHW heating
DHW circulation
Includes holiday, holiday‑at‑home, summer economy, screed drying, and hygiene functions.
| Document Name | Description | Document Type | Language | Action |
|---|---|---|---|---|
| System Design Guideline | Vitodens 343‑F | English | Download |
Our experts can help you choose the right commercial, residential, or light commercial HVAC solution from Carrier, Toshiba, and Viessmann.
ahi@ahi-carrier.com
+971 650 45700
Sharjah Research Technology and Innovation Park First Floor, Wing B – Sharjah United Arab Emirates
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