# Room thermostat Vaillant VRC 9642 — wired wall thermostat for heating control (model 9642)

**URL:** https://aio.lv/en/product--vaillant-9642--7248247
**Data updated:** 2026-03-07 15:16 (EET)
**Category:** Control Systems
**Manufacturer:** Vaillant
**Manufacturer code:** 9642
**EAN:** 4024074041260
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 125.99 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 104.12 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--vaillant-9642--7248247

## 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

Vaillant VRC 9642 is a wired room thermostat designed for wall mounting to control residential heating systems. The unit provides basic temperature regulation and setpoint control for boilers or heating controllers compatible with Vaillant systems. It is used to maintain indoor comfort, schedule heating periods, and integrate with central heating equipment where a simple, reliable room sensor and manual setpoint adjustment are required.

## Long description

Vaillant VRC 9642 is a wired wall-mounted room thermostat designed to provide simple and reliable temperature control for residential heating systems. The unit allows manual setpoint adjustment and acts as a room sensor to maintain a stable indoor temperature by sending on/off or control signals to compatible boilers and heating controllers. The thermostat is intended for straightforward integration into Vaillant-compatible central heating installations where a basic, robust room control device is required.
Advantages
The VRC 9642 offers straightforward operation with a clear manual interface for setting the desired room temperature. Its wired connection ensures consistent communication with the heating system, avoiding interference or battery dependence. Built for wall mounting, the device provides accurate local temperature measurement and simple setpoint control, which supports energy-efficient operation when used with a compatible boiler or controller.
Suitable for
Single-family homes with conventional boilers
Apartments and flats requiring basic room temperature control
Replacement of existing wired room thermostats in Vaillant systems
Installations where a fixed wall-mounted temperature sensor and manual setpoint are preferred
Key specifications
Mounting type: wall-mounted wired thermostat
Control type: manual setpoint temperature control and room sensing
Compatibility: designed to work with Vaillant heating controllers and boilers supporting wired room thermostats
Signal type: low-voltage wired control output suitable for standard boiler inputs
User interface: simple rotary or push control for adjusting temperature setpoint (local control)
Environment: intended for indoor use in living spaces
How to use
Mount the thermostat on an interior wall away from direct sunlight, drafts, or heat sources to ensure accurate room temperature measurement. Connect the device to the heating system following the wiring diagram provided by Vaillant or a qualified installer, ensuring power and control circuits are compatible. Set the desired temperature using the thermostat’s manual control; the device will communicate with the boiler or controller to maintain the setpoint by activating heating output as required.
Usage recommendations
Position the thermostat at typical room height (about 1.5 m above the floor) and avoid installing it on exterior walls or near doors to prevent distorted readings. For reliable operation and warranty compliance, have the thermostat installed and wired by a qualified heating technician familiar with Vaillant systems. Combine the thermostat with an appropriate Vaillant controller or boiler interface to achieve proper scheduling and optimal energy use.

## FAQ

### How much does the Room thermostat Vaillant VRC 9642 cost, and is it available for purchase?

The price is 125.99 € (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 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 Room thermostat Vaillant VRC 9642 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/7248247/68519918_large.webp