# ICMA Filling Unit PN20 Series 1/2 inch

**URL:** https://aio.lv/en/product--icma-91249ad05--10805414
**Data updated:** 2026-06-10 09:37 (EEST)
**Category:** Home Appliance Accessories
**Manufacturer:** ICMA
**Manufacturer code:** 91249AD05
**EAN:** 8033123157285
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 20.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 17.35 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--icma-91249ad05--10805414

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Friday | free |
| Pickup points | 08.07.2026 | 1.89 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

The ICMA PN20 Series filling unit is a high-quality component designed for heating and cooling systems. With a 1/2 inch connection, this unit facilitates the automatic filling and pressure maintenance of closed-loop circuits. It ensures reliable operation and system stability by maintaining the required pressure levels, making it an essential part for professional HVAC installations and maintenance.

## Long description

The ICMA Filling Unit PN20 Series 1/2 inch is a precision-engineered component designed for the automatic filling and pressure maintenance of closed-loop heating and cooling systems. This unit serves as a critical control element, ensuring that the system remains at the required operating pressure by automatically replenishing fluid when the pressure drops below the set threshold. Its robust construction and reliable internal mechanism make it a standard choice for maintaining system stability and preventing air accumulation in HVAC circuits.
Advantages
This filling unit offers consistent performance by automating the pressure regulation process, which eliminates the need for manual intervention during routine system maintenance. The high-quality materials used in its construction ensure long-term durability and resistance to the stresses of thermal expansion and contraction within heating systems. By maintaining a constant pressure, the unit helps to optimize heat transfer efficiency and protects system components from the risks associated with low-pressure operation, such as cavitation or air ingress.
Suitable for
Closed-loop residential and commercial heating systems
Chilled water cooling circuits
HVAC installations requiring automatic pressure regulation
Systems where consistent fluid levels are critical for boiler safety
When it may not be suitable
This unit is not designed for use in open-vented systems or potable water supply lines where backflow prevention standards for drinking water are required. It is also not suitable for high-pressure industrial applications that exceed the PN20 pressure rating.
Key specifications
Connection size: 1/2 inch
Pressure rating: PN20
Function: Automatic filling and pressure maintenance
Application: Closed-loop HVAC systems
How to use
The unit should be installed on the cold water supply line feeding the heating or cooling circuit. Ensure that the flow direction indicated on the valve body matches the direction of the water supply. Once installed, the pressure setting should be adjusted according to the specific requirements of the heating system. The unit will then automatically monitor the system pressure and open to allow water flow whenever the internal pressure falls below the pre-set value, closing automatically once the target pressure is restored.
What to consider before purchase
Verify that the 1/2 inch connection size is compatible with your existing piping infrastructure.
Ensure the system pressure requirements align with the PN20 rating of the unit.
Check local regulations regarding the installation of filling valves in heating circuits.
Usage recommendations
Regularly inspect the unit for any signs of leakage or debris accumulation that might affect the internal valve seat. It is recommended to have the system pressure checked by a qualified technician during annual maintenance to ensure the filling unit remains calibrated to the manufacturer's specifications.

## FAQ

### How much does the ICMA PN20 Series 1/2 Filling Unit cost, and is it available for purchase?

The price is 20.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 12 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 Friday 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 ICMA 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 ICMA 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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