# DEDIETRICH cMix regulator for two heating circuits S103303 — dual-circuit heating controller

**URL:** https://aio.lv/en/product--dedietrich-s103303--11867910
**Data updated:** 2026-03-09 17:44 (EET)
**Category:** Control Systems
**Manufacturer:** DEDIETRICH
**Manufacturer code:** S103303
**EAN:** 3661238549517
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 349.49 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 288.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dedietrich-s103303--11867910

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

DEDIETRICH cMix S103303 is a regulator designed for controlling two independent heating circuits. It provides temperature management, mixing and switching between circuits, and interfaces with boiler control systems for coordinated operation. Suitable for residential or light-commercial hydronic heating installations requiring dual-circuit control and efficient temperature regulation.

## Long description

DEDIETRICH cMix S103303 is a dual-circuit regulator designed to manage two independent heating circuits in hydronic systems. It controls mixing valves and switching functions, provides temperature regulation for each circuit, and integrates with boiler controls to ensure coordinated operation. The regulator is intended for residential and light-commercial installations where separate temperature control and efficient heat distribution are required.
Advantages
The cMix regulator supports independent temperature control of two heating circuits, enabling precise management of different zones. It coordinates mixing and switching actions to maintain target temperatures and to optimize boiler interaction, which helps to stabilize system performance. Compact integration and straightforward interface allow easier commissioning and integration into existing hydronic systems without extensive reconfiguration.
Suitable for
Residential hydronic heating with two independent zones (e.g., radiators and underfloor heating)
Light-commercial buildings requiring separate temperature management for different areas
Systems that require mixing valve control and coordinated boiler connection
Upgrades where dual-circuit regulation is needed for improved comfort and energy distribution
Key specifications
Dual-circuit control: independently manages two heating circuits
Temperature management: setpoint control for each circuit
Mixing and switching: supports control of mixing valves and actuator switching
Boiler interface: designed to coordinate with boiler control systems for synchronized operation
Application: suitable for residential and light-commercial hydronic installations
How to use
Install the cMix regulator according to the system layout so each circuit’s flow and return are connected to the appropriate inputs and outputs, and the mixing valves or actuators are wired to the designated control outputs. Configure the desired temperature setpoints for each circuit through the regulator interface and verify communication with the boiler control. Commission the system by monitoring temperatures and adjusting PID or timing parameters if available to achieve stable regulation and proper coordination between circuits and the boiler.
Usage recommendations
Use the regulator with compatible mixing valves and actuators rated for the system’s hydraulic parameters, and ensure boiler controls are configured to accept external regulation signals. For best results, perform a full system commissioning, including leak checks, flow balancing, and temperature verification for each zone.

## FAQ

### How much does the DEDIETRICH cMix regulator for two heating circuits S103303 cost, and is it available for purchase?

The price is 349.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 15.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can DEDIETRICH cMix regulator for two heating circuits S103303 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All DEDIETRICH products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized DEDIETRICH service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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