GAH ITD 130 Technical And Installation Manual Download

Page: 20 / 37

44444

4-1

Building Control

INST

INSTALLA

ALLA

ALLATION 4

TION 4

4-2

Installation

Note
In some areas it is a criminal offence to
install an unvented hot water storage
system without notifying the local authority,
or without the relevant licence.

To install a Dualstream System the installer must be fully competent, suitably qualified
and hold a relevant unvented certificate and any applicable licence that may be required
by the local inspectorate for installation of an unvented hot water storage system.
In some areas the Local Authority may require notification by means of a building notice
or by the submission of full plans for the proposed installation of an unvented hot water
storage system.

4-1.1 Regulations

The W

Water Bye-laws

ater Bye-laws

ater Bye-laws and Curr

Curr

Current Building R

ent Building R

ent Building Regulations

egulations

egulations (paying particular attention to G3

and Part L 1 & 2) and HSE

HSE

HSE requirements should be considered when installing a

Dualstream System.

4-1.2 Electrical Regulations

All wiring should carried out to and comply with the curr

All wiring should carried out to and comply with the current IEE Wiring R

ent IEE Wiring R

ent IEE Wiring Regulations.

egulations.

All electrical work must comply with any r

All electrical work must comply with any relevant r

elevant r

elevant regulations that apply at the time of

egulations that apply at the time of

the installation.

4-1.3 Electrical Work

All electrical installation and maintenance of the Dualstream must be carried out by a
competent qualified installer.
All electrical work must be installed to the requirements of these ‘User and Installation
Instructions’.

4-2.1 Unvented Hot Water Cylinder

The cylinder may be installed at any convenient above ground location within the
dwelling. As Dualstream is a sealed system, the cylinder is equally effective on any floor.
The cylinder must always be installed vertically.
Avoid positioning the cylinder where it may be subjected to frost.
The floor must give adequate support to the filled cylinder.
Cylinders with legs are supplied with self-tapping screws for floor fixing.
For maintenance purposes leave at least 500mm at the front of the cylinder.
The cylinder may be installed below ground i.e. in a basement, providing that the
expansion relief discharge pipe is plumbed to a metal receptacle with a suitable pump
and switch arrangement, current Building Regulations give details of this. An alternative
is to use a Hepworth HepvO Self Sealing Waste Valve, this must be installed to the
manufacturers specification and building regulations.

4-2.2 Cylinder Thermostat

The combined Cylinder Thermostat and Thermal Cut-Out Thermostat supplied should be
inserted into the socket provided in the cylinder. A screw is provided to clamp the unit in
place.
Wire the unit as wiring diagram 3-3c.

Fig. 4-2a Cylinder Thermostat

Note
GAH offer full unvented training packages
contact GAH (HEATING PRODUCTS).