Rotex GSU 25 User Manual

ROTEX GasSolarUnit:
Gas fired condensing boiler with solar stratification cylinder.
ROTEX GasCompactUnit:
Gas fired condensing boiler with high performance domestic hot water cylinder.
Installation and maintenance instructions for contractors.
Type Rated thermal load
ROTEX GSU 25 5–25 kW modulating
ROTEX GSU 35 8-35 kW modulating
ROTEX GCU 25 5–25 kW modulating
ROTEX GCU 35 8–35 kW modulating
Serial number
Customer
GB
0085 BM0065
★★★★

Rotex GSU 25 Specifications

General

Type	Gas condensing boiler
Seasonal energy efficiency class	A
Heating Capacity	25 kW
Efficiency	98%
Fuel Type	Natural Gas / LPG

Summary

Chapter 1: Safety Instructions and Warranty

Chapter 3: Positioning and Installation

3.3 Positioning

3.4 Connecting the GasSolarUnit

Details how to connect the flue gas and ventilation air lines for the unit.

Gas and Water Connections

3.5 Filling

Step-by-step instructions for filling the heating system and cylinder.

Chapter 5: Technology

5.1 Gas Burner

Detailed description and diagrams of the gas burner unit.

5.2 Cylinder

5.3 Hydraulic System Connection

Provides hydraulic diagrams and explanations for connecting the system.

Chapter 6: Inspection and Maintenance

6.1 Inspection and Maintenance Work

Outlines the annual inspection and maintenance procedures for the heating system.

Chapter 7: Troubleshooting

Troubleshooting Overview

General information on fault detection and interpretation of fault codes.

List of Possible Fault Codes

A table detailing fault codes, descriptions, types of faults, and comments.

Fault Removal Guide

Chapter 9: For the Flue Gas Inspector

Flue Sizing Details and Check Measurement