Heat Pump Hydraulic Module

Compact. Smart

Indoor unit for R290 heat pumps with a built-in expansion tank (5 L), electric heater, three-way valve, automatic air vent, and AC contactors. It reduces installation time and simplifies the installation of monoblock heat pumps.

Performance & Efficiency

Excellent energy efficiency

Optimized performance for maximum energy savings — reduces operating costs for both heating and hot water.

Water outlet temperature up to 75 °C

High-temperature output suitable for both radiators and underfloor heating in any building.

Electric auxiliary heating 3 kW / 6 kW

The built-in electric heater ensures reliable hot water supply even under extreme conditions.

Smart Control & Easy Installation

Built-in Wi-Fi

Remote monitoring and control of the system from any device—anywhere, anytime.

Color LED display

Intuitive controls with a clear menu — seven operating modes, including hot water, heating, and cooling.

Quick and easy installation

The all-in-one system significantly reduces installation time—the expansion tank, three-way valve, and air vent are built directly into the module.

Hydrobox – Heat Pump Partner

This is a compact, all-in-one indoor unit. It can be used with various heat pump systems, ensuring a steady supply of hot water and efficient home heating. It serves as a control center for heating, cooling, and hot water throughout the entire house.

Technical specifications

Parameter NHB-02 NHB3N-01
Power Supply 220–240V / 50–60Hz 380–415V / 50Hz
Expansion Tank 5 L 5 L
Electric Heater 3 kW 6 kW
AC Contactor 1 (Main Board) 16 A 16 A
AC Contactor 2 (DHW Heater) 63 A 25 A
AC Contactor 3 (Heating) 63 A 25 A
AC Contactor 4 (Inner Heater) 16 A 25 A
3-Way Valve Yes Yes
Automatic Air Release Valve Yes Yes
Water Connection G1″ G1″
Communication Cable Length 15 m 15 m
Temperature Sensor Cable Length 5 m 5 m
Product Dimensions (mm) 610 × 420 × 250 610 × 420 × 250
Package Type Cardboard Box Cardboard Box
Package Dimensions (mm) 700 × 480 × 312 700 × 480 × 312
Wooden Package Cost $16 $16
Wooden Package Dimensions (mm) 735 × 515 × 440 735 × 515 × 440
Compatibility All All