Horne Engineering Ltd
Issue 4 June 2016
1
Horne Engineering Ltd
Po Box 7, Rankine Street
Johnstone, Renfrewshire
Scotland, PA5 8BD
Tel: 01505 321455
Fax: 01505 336287
Email:
Web: www.horne.co.uk
TSV1-3 THERMOSTATIC SHOWER VALVE
WITH AUTOMATIC DIVERTER VALVE (T605A & variants)
INSTALLATION, OPERATING & MAINTENANCE INSTRUCTIONS
Installation requirements and specifications
Approvals
The TSV1-3 Thermostatic Shower Valve within the panel has been independently tested by the WRc and
approved to all the requirements of NHS Model Engineering Specifications D08 Thermostatic Mixing Valves
(Healthcare Premises) to the following designations and for the following applications:
HP-S
Shower with supply pressures of 1
– 5 bar and unrestricted flow rate
LP-S
Shower with supply pressures of 0.2
– 1 bar and unrestricted flow rate
Supply Water Pressure requirements
The minimum water pressure required to achieve a satisfactory spray at each spray-head is a dynamic head of
20m (30 psi, 2 bar) measured from the spray head.
Note that dynamic head is measured with the water running.
The maximum recommended supply pressure is 6 bar (90 psi, 60m head) for hot and 10 bar (150 psi, 100m
head) for the cold.
Supply Water Temperature Requirements
Max. Hot Water Temperature*
65°C
Min. Hot Water Temperature#
55°C
Max. Cold Water Temperature#
20°C
A minimum temperature differential of 5°C should exist between the mixed water temperature and each inlet
temperature.
Note that requirements marked * originate from WRAS approval of non-metallic components, and those marked
# originate from HTM 04:01, Part A, 2007.
Temperature Adjustment Range
The mixed water temperature can be adjusted from cool through to a top limit (which can be preset during
installation
– factory set to approx. 41°C - with full anti-scald protection throughout the range).
Water and Energy Conservation
The TSV1 range of shower panels is fitted with a flow regulator at the shower outlet to reduce the flow rate and
conserve water and energy. The drawing at the end of this document provides information for accessing the
flow regulator for removal or replacement.
Every HORNE TSV1-3 is supplied with an integral WRAS approved single check valve and integral large
surface area strainer. The Shower Panel terminates in 15mm copper pipes for hot and cold supplies. The hot
pipe is on the left, cold on the right, when viewed from the user’s perspective.
