# Pump Controller TECH ST-19 for Central Heating (CO), anti-stop function, black

**URL:** https://aio.lv/en/product--tech-st19bk--10712273
**Data updated:** 2026-03-07 17:59 (EET)
**Category:** Control Systems
**Manufacturer:** TECH
**Manufacturer code:** ST19BK
**EAN:** 5901445470005
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 44.99 €
**Prices and availability valid until:** 2026-07-06 23:59
**Price without VAT (21%):** 37.18 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tech-st19bk--10712273

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.06.2026 | free |
| Pickup points | 03.07.2026 | 1.99 EUR |
| Courier delivery to door | 03.07.2026 | 4.99 EUR |

## Summary description

TECH ST-19 is a pump controller for central heating (CO) systems designed to manage circulation pumps. The unit includes an anti-stop (antystop) feature to prevent pump seizure during inactivity and comes in black. It is intended for use in residential and light-commercial heating installations to control pump operation and improve reliability.

## Long description

TECH ST-19 is a pump controller for central heating (CO) systems designed to manage circulation pump operation in residential and light-commercial installations. The compact black housing contains control electronics that start and stop the pump according to system demand and include an anti-stop function to actuate the pump at intervals, reducing the risk of seizure during prolonged inactivity.
Advantages
The controller provides reliable automatic pump control with a simple installation footprint and straightforward wiring compatible with typical heating circuits. Its anti-stop feature periodically runs the pump to prevent blockages and bearing damage, improving pump longevity and reducing maintenance needs. The black enclosure offers a neutral appearance that integrates with common boiler and pump assemblies.
Suitable for
Managing circulation pumps in domestic central heating systems
Light-commercial heating circuits with standard pump motors
Retrofit projects where anti-stop protection is required
Systems where compact controller mounting is needed near the pump or boiler
Key specifications
Function: automatic pump start/stop control for central heating
Anti-stop feature: periodic pump activation to prevent seizure
Housing colour: black
Compatibility: intended for standard circulation pump motors used in CO systems
Application: residential and light-commercial heating installations
How to use
Install the TECH ST-19 controller according to local electrical and heating codes, mounting it close to the circulation pump or boiler for convenient wiring. Connect supply and pump control conductors following the wiring diagram provided by the manufacturer. Once powered, the controller will automatically run the pump based on system signals or its internal control logic and will activate the anti-stop routine during extended idle periods. Verify correct operation at initial start-up and after commissioning by observing pump behavior during normal heating cycles and anti-stop intervals.
Usage recommendations
Use only with compatible circulation pumps and within the electrical ratings specified by the system installer or manufacturer. Periodically inspect wiring and mounting for signs of wear or corrosion and test the anti-stop function after long idle periods or seasonal shutdowns to ensure continued protection.

## FAQ

### How much does the Pump Controller TECH ST-19 cost, and is it available for purchase?

The price is 44.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 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 30.06.2026 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. All transactions are 100% secure and encrypted.

### 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 TECH 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 TECH 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/10712273/59773708_large.webp