# Vaillant multifunction module for Doutwin Condens boiler model 0020045084

**URL:** https://aio.lv/en/product--vaillant-0020045084--11825872
**Data updated:** 2026-03-09 11:15 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** Vaillant
**Manufacturer code:** 0020045084
**EAN:** 3532040893023
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 93.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 77.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--vaillant-0020045084--11825872

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Multifunction module by Vaillant for Doutwin Condens boilers, model 0020045084. Designed to expand and manage boiler functions including system control, signal interfacing and connectivity with compatible heating equipment. Intended for installation by qualified technicians to enable additional control options and integration within domestic or commercial heating systems.

## Long description

The Vaillant multifunction module for Doutwin Condens boiler model 0020045084 is an expansion and interface unit engineered to add control and connectivity options to compatible Vaillant Condens boilers. It provides additional inputs and outputs for system monitoring, signal conversion and communication with external controls or peripherals. The module is intended for professional installation and integration within domestic or light commercial heating systems to extend the boiler's functional capabilities.
Advantages
The multifunction module offers centralized management of additional signals and peripherals, allowing streamlined control of the heating system without modifying the main boiler electronics. It supports reliable signal interfacing and improves compatibility with external thermostats, sensors and control units. Designed to meet Vaillant installation and safety standards, the module facilitates easier upgrades and system expansions while maintaining factory system integrity.
Suitable for
Expanding control options on Doutwin Condens series boilers
Integrating external thermostats, room sensors or control panels
Connecting peripheral devices such as zone valves or pump controls
Upgrading domestic or light commercial heating systems for additional automation
Key specifications
Function: signal interfacing and control expansion for compatible boilers
Connectivity: multiple input/output terminals for sensors, thermostats and actuators
Installation: designed for internal mounting in the boiler housing or designated module slot
Compatibility: specific to Doutwin Condens family boilers and compatible Vaillant control systems
Operation: passive and active signal handling to support digital and analogue inputs
How to use
Installation and wiring must be performed by a qualified heating engineer or electrician following Vaillant technical documentation and local regulations. The module is mounted in the appropriate slot or internal compartment of the boiler, then wired to the boiler control board and the external devices to be controlled. After physical installation, configure the boiler control settings as specified in the service manual to enable the new inputs and outputs. Perform functional tests to confirm correct signal routing and safe operation before leaving the system in service.
Usage recommendations
Use only approved compatible sensors and control devices and follow Vaillant's installation guidelines. Regularly inspect wiring connections and update control settings whenever system changes occur. For troubleshooting or firmware/configuration updates, consult a certified Vaillant service technician.

## FAQ

### How much does the Vaillant multifunction module 0020045084 cost, and is it available for purchase?

The price is 93.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 06.07.2026 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 Vaillant multifunction module 0020045084 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 Vaillant 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 Vaillant 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

https://aio.lv/img/cache/product/11825872/67227482_large.webp