Maxiflame HB SOLAR XL solar group – double pipe for high flow systems
The Maxiflame HB SOLAR XL is a complete solar station designed for the control, circulation and management of the heat transfer fluid in solar thermal systems.
In practice, it is the operational heart of the solar system : the component that allows the heat to be transferred from the solar panels to the storage tank (boiler or buffer tank), ensuring efficiency, safety and consistent performance over time.
What it is and what it is used for
HB SOLAR XL is a high flow double tube solar group , designed for:
- manage the heat produced by solar collectors
- transfer it to the ACS boiler or inertial storage tank
- check the flow and pressure of the circuit
In a solar thermal system, without this group:
- heat is not distributed properly
- the system loses efficiency
- the risk of malfunctions increases
Where to use it
It is designed for:
- advanced domestic solar thermal systems
- systems with multiple solar collectors
- systems for the production of domestic hot water (DHW)
- systems with storage (puffer or boiler)
It is particularly suitable for:
- large houses
- accommodation facilities
- centralized systems
In fact, it is designed for high flow and higher power systems
How it works
The operation is simple but fundamental:
Solar panels heat the heat transfer fluid The HB SOLAR XL group activates the circulation pump
The hot fluid is transferred to the storage tank The system regulates:
- flow rate (flowmeter)
- pressure
- safety
Everything happens in a controlled and continuous manner.
The installation data sheet (attached) clearly shows the central role of the group between collectors and boiler.
Why it is advantageous
This module integrates into a single system:
- circulation pump
- flowmeter for flow control
- safety valve and pressure gauge
- venting systems and gravity brakes
In this way:
- optimizes heat transfer
- improves system efficiency
- reduces consumption and waste
- increases safety and durability over time
It is particularly advantageous in systems with multiple collectors or high flow rates, where precise and stable control is required.
Installation
The HB SOLAR XL group is installed between the solar collectors and the storage tank , becoming the central point of the solar circuit.
It mounts to the wall in a vertical position and connects:
- to the panel circuit (solar flow and return)
- to the accumulation (boiler or buffer)
- to the regulation system (control unit, optional)
Installation must be performed by qualified personnel to ensure safety and correct operation.
TECHNICAL CHARACTERISTICS
- Connections: 1”
- Flowmeter range: 5–35 l/min
- System power: up to 35 kW
- Collector surface area: up to 70 m² (high flow)
- Pump: Wilo Para 15/8 STG
- Max pressure: 6–10 bar
- Max temperature:
- flow rate: 140°C
- return: 120°C
- Power supply: 230V
- Dimensions: 377 x 440 x 220 mm
NB: FOR FURTHER DETAILS WE RECOMMEND VIEWING THE TECHNICAL DATA SHEET ATTACHED.
WARRANTY
The warranty is the official Maxiflame Italia one and lasts 2 years.
