Page 3
INTRODUCTION
DESIGN
These instructions should be read in conjunction with the Installation and Servicing
Instructions issued by the manufacturers of the heat pump used.
Any water distribution and central heating installation must comply with the relevant
recommendations of the current version of the Regulations and British Standards
listed below:-
Gas Safety Regulations
Building Regulations
I.E.E. Requirements for Electrical Installations
Water Regulations
British Standards
BS6798, BS5449, BS5546, BS5440:1, BS5440:2, CP331:3, BS6700, BS5258, BS7593:1993
and BS7671.
It must be installed by a competent person as stated in the Gas Safety Regulations
where applicable. Manufacturers notes must NOT be taken as over-riding statutory
obligations.
Torrent HP is not covered by Section G3 of the current Building Regulations but the
installation is notifi able to building control unless it is carried out under an approved
competent person self-certifi cation scheme.
Although the secondary supply (domestic) is at mains pressure, it is not necessary to
fi t an expansion chamber, pressure or temperature relief valve, the plumbing should
allow any unusual build up of pressure to be relieved at the ball valve.
The information in this manual is provided to assist generally in the selection of
equipment. The responsibility for the selection and specifi cation of the equipment
must however remain that of the customer and any Designers or Consultants
concerned with the design and installation.
Please Note: We do not therefore accept any responsibility for matters of design,
selection or specifi cation or for the effectiveness of an installation containing one of
our products unless we have been specifi cally requested to do so.
All goods are sold subject to our Conditions of Sale and Warranty Terms, which
are set out at the rear of this manual.
In the interest of continuously improving the Torrent HP range, Gledhill Building
Products Ltd reserve the right to modify the product without notice, and in these
circumstances this document, which is accurate at the time of printing, should be
disregarded. It will however be updated as soon as possible after the change has
occurred.
Description
The Torrent HP is a directly heated, open vented
thermal store designed for use with an air
source or a ground source heat pump. Although
the thermal store is open vented, the mains
pressure hot water is heated instantaneously
by means of heat exchangers inside the store
(Figures 1 & 2).
The Torrent HP range of primary thermal stores
are only suitable for open vented heating
systems but they provide mains pressure hot
water without the requirements of a pressure
and temperature relief valve. Notification
to Building Control to comply with Section
G3 of the Building Regulations is therefore
not required. This is because the thermal
store is vented in the normal way and unlike
an unvented storage cylinder, the Torrent
HP range require no regular maintenance
or annual inspection. This reduces running
costs for the home-owner while offering high
performance showers and high fl ow rates to
fi ll baths rapidly.
Because this product does not require a safety
discharge from the temperature and pressure
relief valve, any installation will be easy to
incorporate into the building and will not suffer
from the problems associated with using soil
stacks to take the high temperature discharge
from unvented cylinders.
Summary of Contents for THP180 sol
Page 21: ...Page 21 APPENDIX APPENDIX B ...
