resideo Braukmann - User Manual

EN1H-2615GE25 R1020
50093594-001 Rev. C
INSTALLATION, COMMISSIONING AND OPERATING INSTRUCTIONS
Unit as delivered
Unit completed with optional components
Contents
Contents ..................................................................................................1
Safety Guidelines ....................................................................................2
General Warnings ...................................................................................2
Before Installation ...................................................................................2
Wiring .......................................................................................................2
Description ..............................................................................................2
Dimensions and details .........................................................................3
Hydraulic diagram ...................................................................................3
Technical data .........................................................................................3
Mounting ..................................................................................................4
External casing dismounting-mounting ...............................................4
Wall mounting .........................................................................................4
Fixing electrical cables ...........................................................................5
Electrical connections ............................................................................5
Activation .................................................................................................5
Display and keypad ................................................................................5
Programming for Technician .................................................................6
Deactivation of unit functions ...............................................................6
Unit electrical disconnection .................................................................6
Control and regulations .........................................................................6
DHW temperature ....................................................................................6
Spare parts ..............................................................................................7
Metering ...................................................................................................7
Backflow preventer .................................................................................7
Unit Components ....................................................................................7
Braukmann
HyBo - Hydraulic Interface Unit
AMBIENT HEATING AND DOMESTIC HOT WATER PRODUCTION FOR
CENTRAL HEATING SYSTEM UNIT CODE EHIU1

Summary

Safety Guidelines

General Warnings

Provides essential safety precautions and user responsibilities during installation and operation.

Before Installation

Details pre-installation checks, unpacking, and equipment inspection before mounting.

Wiring

Outlines safety measures and requirements for electrical wiring connections.

Description

Notices about domestic hot water

Advises on water quality, scale reduction, and pH value for optimal DHW production.

Technical Specifications

Dimensions and details

Illustrates the physical size and layout of the unit.

Hydraulic diagram

Presents the schematic of the unit's water flow and connections.

Technical data

Lists key performance parameters, materials, and operating limits.

Mounting and Installation

External casing dismounting-mounting

Instructions for removing and reattaching the unit's external casing.

Wall mounting

Guidelines for securely fixing the unit to a suitable wall.

System Preparation and Pipe Connection

Emphasizes flushing systems and proper pipe connection before installation.

Electrical Installation

Fixing electrical cables

Details on routing and securing power and thermostat cables to the unit.

Electrical connections

Specifics for connecting the supply cable and room thermostat.

Activation

Steps to power on and activate the unit after installation is complete.

Display and keypad

Explains the unit's digital display and button functions for operation.

Operation and Programming

Programming for Technician

Advanced settings and parameter adjustments for technical personnel.

Deactivation of unit functions

Methods for disabling heating or domestic hot water functions.

DHW temperature

How to adjust the domestic hot water supply temperature using the keypad.

Unit electrical disconnection

Procedures for safely disconnecting the unit from the electrical supply.

System Integration and Components

Balancing

Information on static balancing valves and differential pressure balancing.

Metering

Guidance on installing energy and water meters, including safety warnings.

Backflow preventer

Requirement to install a backflow preventer on the cold water inlet.

Unit Components

Diagram and list identifying the various parts of the unit.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The Resideo Braukmann HyBo - Hydraulic Interface Unit (HIU) is designed for ambient heating and domestic hot water (DHW) production within central heating systems. This wall-hanging unit, with an optional external casing, is intended for indoor installation in suitable ambient conditions, with an operating temperature range of 5-55°C and humidity between 25-85%.

Function Description:

The HyBo HIU provides both central heating and instantaneous domestic hot water. DHW production takes priority over heating service. The unit integrates a plate heat exchanger, modulating motorized valve for DHW control, and an ON/OFF motorized valve for heating control. It features a control panel with a digital display and keypad for adjusting DHW temperature and accessing technician programming.

The unit operates by drawing supply from a centralized system. For heating, it circulates water to and from the apartment. For DHW, it takes cold sanitary water, heats it via the plate heat exchanger, and delivers hot sanitary water. The DHW production flow activates at 3.5 l/min and deactivates at 2.5 l/min.

A key feature is the "anti-burns function," which intervenes if the hot sanitary water delivery temperature exceeds a setpoint plus a programmed delta temperature (P3 value). In this scenario, the modulating 2-way valve closes to interrupt thermal energy, preventing scalding. Once the temperature drops, normal DHW production resumes. Additionally, a "warmed heat exchanger function" (P5=0) can be activated to maintain the primary circuit of the heat exchanger at a constant temperature, even without DHW drawing, to reduce delay time in DHW production.

Important Technical Specifications:

• Heating Circuit:
  • Kind of fluid: Water VDI2035, max. glycol 30%
  • Max. temperature: 90°C
  • Max. operating pressure: 6 bar
• Domestic Water Line:
  • Kind of fluid: Water max hardness 15dGH and pH 7-9, pH value 7-9
  • Max. temperature: 30°C
  • Max. operating pressure: 6 bar
  • Max. flow rate: 1.5 m³/h
  • Nominal flow rate: 1.25 m³/h
• DHW/Exchanger Secondary Circuit:
  • Max. setting temperature: 60°C
  • Max. operating pressure: 6 bar
  • DHW production flow activation: 3.5 l/min
  • DHW production flow deactivation: 2.5 l/min
  • Max. flow rate: 22 l/min (physical limit for quiet operation, real max flow depends on target system parameters)
• Pipes:
  • Material: Copper
  • Size: Ø18 mm
• Hydraulic Connections:
  • Material: Brass
  • Size: G 3/4" M
• Electrical Supply:
  • Voltage: 230V +/- 10%
  • Frequency: 50 Hz
  • Max. power consumption: 10W
  • IP protection: 20
  • Electronic board protected by a 1 Ampere fuse.
• Motorized Valve:
  • Operation time ON/OFF type: 15 sec
  • Operation time Modulating type: 15 sec
• Dimensions: 529mm (height) x 491mm (width) x ~183mm (depth)

Usage Features:

• Digital Display and Keypad: The unit features a digital display that shows the current temperature and status indicators (LEDs for hot water temperature control system). The keypad allows users to turn the unit ON/OFF, adjust DHW temperature, and access technician programming.
• DHW Temperature Adjustment: Users can adjust the set supply temperature of the hot sanitary water via the keypad. The display shows a value from 0 to 10, corresponding to approximately 40°C to 60°C.
• Technician Programming: Access to a programming menu (P1-P5) allows technicians to configure various parameters:
  • P1: Time of sampling temperature (1.0-10.0 sec, default 1.0/1.3 sec depending on heat exchanger type).
  • P2: Delay time for DHW production activation by flow meter signal (0-5 sec, default 0 sec).
  • P3: Delta temperature added to setpoint for anti-burns function (5-50°C, default 5°C).
  • P4: Delay time for anti-burns function intervention (0-30 sec, default 0 sec).
  • P5: Boolean variable to activate/deactivate warmed heat exchanger function (0=activated, 1=deactivated, default 1).
• Metering Capabilities: The unit can be equipped with energy and water meters (not included). Stub pieces are provided for easy installation. Heatmeter 1 measures total energy consumption (heating and DHW), while Heatmeter 2 measures apartment heating only. DHW energy consumption can be derived from the difference between Heatmeter 1 and Heatmeter 2 readings.
• Balancing Valve: Equipped with a static balancing valve, with provisions for adding a diaphragm for differential pressure balancing (not included).

Maintenance Features:

• No Regular Maintenance Required: The device generally does not require maintenance.
• Strainer Cleaning: After 6 months of usage, it is recommended to clean the strainer.
• Pre-installation Flushing: Before installation, centralized and apartment systems must be cleansed and flushed to prevent fouling of the unit with impurities. This is crucial to avoid unsatisfactory working and potential damage to components.
• Connection Seals: Care must be taken not to damage or break connection seals during installation. Pipe connection torque must not exceed 50 Nm.
• Backflow Preventer: As required by regulations, a backflow preventer should be inserted on the domestic cold water inlet (not included with the unit).
• Water Quality: If supply water hardness exceeds 15°f (dGH), a suitable scale reducing device (softener) is recommended. Setting sanitary water temperature slightly above operating temperature can also reduce scale formation.
• Electrical Disconnection: For maintenance or disconnection, the unit must be electrically isolated by first disconnecting the ambient thermostat, pressing the ON/OFF button, waiting for motorized valves to close, and then moving the bi-polar switch to the OFF position. It's important to note that the bi-polar switch does not interrupt power from the ambient thermostat.

resideo Braukmann Specifications

General

Brand	resideo
Model	Braukmann
Category	Recording Equipment
Language	English