Key facts
- Manuals
- 1
- Languages
- EN
- Last added
- 2023-10-17
Featured GAH manuals
GAH Dualstream System Installation and User Guide
This manual provides installation and operational instructions for GAH’s Dualstream domestic hot and cold water system. It covers safety precautions, system components, layout options, sizing requirements, and commissioning procedures. The system includes an unvented cylinder, accumulator, combination valve, and expansion relief valve to maintain consistent pressure and flow. Safety measures include electrical isolation, protective gear, and compliance with regulations. The guide also addresses system features like reduced pipework, no loft tank, and green technology.
The Dualstream system is designed for properties with low mains pressure (minimum 1 Bar at 9 L/min) and offers balanced hot and cold water supply. It includes optional solar integration and auxiliary heating. Installation must comply with building regulations and include proper valve placement and pressure settings. The manual includes diagrams and notes for correct setup and troubleshooting.
Covers: Introduction · System Layout · System Requirements · Operator Controls · Technical Information · Installation
Latest GAH manuals
GAH Dualstream System Installation and User Guide
Installation Guide 36 pages · 1.5 MB · ENInstallation and operating guide for GAH Dualstream domestic hot and cold water systems, including safety, components, and commissioning.
Which document do I need?
Installation Guide
Mounting, wiring and first power-up. Read it before the hardware goes in.
Questions answered in GAH manuals
What is the minimum mains pressure required for Dualstream?
The system requires a minimum of 1 Bar at 9 litres per minute, as per local water authority standards.
What is the purpose of the accumulator in the Dualstream system?
The accumulator stores cold water at mains pressure using a butyl diaphragm, maintaining pressure to hot and cold outlets when multiple taps are used.