# Heating manifold with coupling 3 circuits VIESSMANN 7773837

**URL:** https://aio.lv/en/product--viessmann-7773837--11829203
**Data updated:** 2026-03-09 14:38 (EET)
**Category:** Heating Radiators
**Manufacturer:** VIESSMANN
**Manufacturer code:** 7773837
**EAN:** 4054465672957
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 501.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 414.87 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--viessmann-7773837--11829203

## 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 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Heating manifold with coupling for three heating circuits by VIESSMANN, model 7773837. Designed to distribute and balance hot water flow between three separate circuits, it includes coupling for hydraulic connection. Suited for multi-zone central heating systems, underfloor heating or radiator groups, enabling independent control and reliable circuit separation.

## Long description

The VIESSMANN Heating manifold with coupling for three circuits is a compact hydraulic assembly designed to distribute and balance hot water flow between three independent heating circuits. Intended for use in multi-zone central heating systems, underfloor heating manifolds or radiator groups, the unit provides hydraulic separation and a coupling point for connection to the primary heating loop. The manifold allows straightforward integration into domestic or light-commercial heating installations where independent circuit control and even heat distribution are required.
Advantages
This 3-circuit manifold offers precise flow distribution across three separate circuits, improving temperature consistency and system efficiency. Integrated coupling simplifies hydraulic connection to the primary loop and reduces installation time. The compact design conserves space in plant rooms or service cupboards while maintaining access for valves and metering equipment. Materials and construction are selected to ensure reliable operation under typical residential heating conditions.
Suitable for
Multi-zone central heating systems
Underfloor heating installations with three circuits
Groups of radiators requiring separate control
Renovation projects where hydraulic separation is needed
Key specifications
Number of heating circuits: 3
Function: distribution and hydraulic coupling between primary and secondary circuits
Application: domestic and light commercial heating systems, underfloor heating, radiator groups
Design: compact manifold assembly with coupling for primary connection
Control compatibility: suitable for integration with circuit valves, flow meters and balancing devices
Installation orientation: fixed horizontal mounting in a heating plant or manifold cabinet
How to use
Install the manifold according to the system design and local regulations, positioning the coupling to connect to the boiler or primary loop. Connect each of the three secondary circuit outlets to their respective heating zones, and fit balancing valves, flow meters or actuators as required for control and commissioning. Flush and fill the heating system, vent air from the circuits, then perform hydraulic balancing and leak checks before commissioning. Follow manufacturer and local codes for pipe sizing, insulation and pressure testing.
Usage recommendations
For reliable operation, use appropriate balancing valves and flow measurement when commissioning three separate circuits. Regularly inspect joints and fittings for leaks and maintain system water quality to minimize corrosion and ensure long service life.

## FAQ

### How much does the Heating manifold 3-circuit VIESSMANN 7773837 cost, and is it available for purchase?

The price is 501.99 € (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 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 Heating manifold 3-circuit VIESSMANN 7773837 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 VIESSMANN 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 VIESSMANN 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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