
All product information at a glance
Product Description
Sunex hydraulic module for monoblock heat pumps Hydra Box M EVI 4kW electric heating element
Hydraulic module Hydra Box:
The Hydra Box M EVI is a compact indoor module for heat pumps, combining all essential hydraulic components for the safe, efficient, and rapid operation of heating and domestic hot water systems. The pre-assembled system significantly simplifies installation, and the space-saving design allows optimal access for maintenance and servicing.

Technical highlights
- Functionality and application of Insyg Alfa ( Insyg Cloud module integrated )
- Equipped with:
Three-way valve for switching between central heating and hot water circuit - Continuous heating element (4kW, 6kW)
- Magnetic filter with dirt separator
- Expansion vessel and safety valve, filling connections
- Integrated circulation pump
- It is designed for the NEXUS M EVI pumps.
- Dimensions (W x D x H): 375 × 600 × 825 mm
- Weight: only 45 kg – ideal for quick assembly and easy handling
- Installation location: Indoor
- Application: Heating and hot water support for heat pumps with EVI technology
Features & Functions
- Integrated hydraulic unit: Contains all essential components for operational reliability and efficient system integration.
- Elegant, compact design: Saves valuable space and blends discreetly into modern utility rooms.
- Maintenance-friendly: Thoughtful design for easy access to all important components.
- Intelligent control: Comprehensive system controller for controlling heat pumps, heating and domestic hot water preparation – also with remote access option depending on the version.
Advantages at a glance
- Quick & easy installation – factory pre-assembled
- Space-saving and easy to maintain – ideal for single-family homes
- Compatible with Sunex split heat pumps (e.g. Nexus Split EVI)
- Modern design & low weight – 45 kg

Technical data
- Application example: Nexus M8 EVI, Nexus M13 EVI
- Circulation pump: Grundfos UPM3L
- Electric heating element: 4kW
Important NOTE!
The installation and commissioning of the equipment must be carried out exclusively by qualified personnel. In the event of a complaint, proof of proper installation by qualified specialists (certificate of professional qualification and special qualifications) must be provided. If no such proof is provided, all warranties and guarantees will be void.
Technical specifications subject to change without notice. Errors and omissions excepted. Subject to prior sale. Image may differ from actual product.
Technical Data
| Data sheet | Download PDF |
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Installation
Notes
Manufacturer Information
SUNEX SA Ziegelweg 7 02906 Niesky Poland service@sunex-deutschland.de https://sunex-deutschland.de/
Our Services at a Glance
At Clima-Air, we see ourselves primarily as a service provider.
That’s why our service doesn’t end with delivery.
Individual and professional consultation
Installation and commissioning of air conditioning systems
Annual maintenance and service of your air conditioner
Do you have questions or need assistance?
Feel free to use the form on our contact page to send us a message or call us directly using the number below. Our customer service team will do their best to answer all inquiries promptly.
