TFC Group TMV User Manual

Thermostatic mixing valves

INSTALLATION AND OPERATING INSTRUCTIONS

FOR THERMOSTATIC MIXING VALVES COMPLYING WITH

N.H.S ESTATES MODEL ENGINEERING SPECIFICATION D08

THE VALVE COVERED IN THIS BOOKLET HAS BEEN DESIGNED AND MANUFACTURED

TO COMPLY WITH N.H.S ESTATES MODEL ENGINEERING SPECIFICATION D08

IT MAY PERFORM SATISFACTORILY OUTSIDE THE LIMITS SPECIFIED HOWEVER

THIS IS OUTSIDE THE SCOPE OF THE TMV2 AND TMV3 SCHEME

TEMPERATURE STABILISED

THERMOSTATIC MIXING VALVE

INTRODUCTION

It has been recognized that users of hot water in care establishments are at risk from scalding.
This risk has been reduced by the use of thermostatic mixing valves.
In order to assure the performance of thermostatic mixing valves N.H.S. Estates Model
Engineering Specification D08 was created. The valve listed in the following pages has been
designed and manufactured to this standard for use within the Build Cert scheme designated
applications.

This Thermostatic mixing valve has also been designed to the TMV2 scheme which is manufactured
to comply with BS EN 1287(LP) and BS EN 1111(HP)

The following abbreviated designation codes are used throughout this booklet. Detailed descriptions
are given below.

HP High pressure
LP Low pressure
S Shower
B Bidet
W Washbasin
T44 Bath with fill temperature of 44°C max
T46 Bath with fill temperature of 46°C max
BE Bidet with economy flow rate
SE Shower with economy flow rate
WE Washbasin with economy flow rate

DESIGNED FOR USE IN THE FOLLOWING DESIGNATIONS

CODE OPERATING PRESSURE APPLICATION

HP-B HIGH PRESSURE BIDET
HP-S HIGH PRESSURE SHOWER
HP-W HIGH PRESSURE WASH BASIN
LP-B LOW PRESSURE BIDET
LP-S LOW PRESSURE SHOWER
LP-W LOW PRESSURE WASH BASIN
HP-T44 HIGH PRESSURE BATH FILL WITH TEMPERATURE UP TO 44°C

TFC GROUP LLP Tower House, Vale Rise, Tonbridge, Kent TN9 1TB

Tel: [phone] Email: [e-mail] Web: www.tfc-group.co.uk

Thermostatic mixing valves

NOTE: ALL INSTALLATION AND MAINTENANCE PROCEDURES SHOULD
BE CARRIED OUT IN ACCORDANCE WITH THESE GUIDELINES.
PLEASE READ THESE GUIDELINES BEFORE COMMENCING ANY
NEW INSTALLATION OR SERVICING OF EXISTING UNITS.

INSTALLATION RECOMMENDATIONS
The following general recommendations should be observed.

1) Always install isolating valves to facilitate servicing.

2) Always flush both supply pipes fully before connecting mixing valve to ensure no pipe debris
enters the inlets. Always fit filters provided.

3) All installations must comply with current local water company regulations.

TO CLEAN

1. Soak all metal parts in de-scaler, wash off in clean water.

2. Lightly grease all metal parts with silicone grease.

3. Replace worn and damaged ‘O’ rings.

TEMPERATURE SETTING

1. Turn adjustment screw clockwise for cooler temperature,
Anti-clockwise for warmer temperature. Replace head cover.

CONDITIONS FOR NORMAL USE
In order to give compliance with N.H.S. specification D08 and TMV2 scheme, the table below lists
the conditions for normal use, the valves may perform adequately outside these parameters but the
scope of the TMV2 and TMV3 scheme does not apply. If they are required to work with other supply
conditions an engineer must carry out a risk assessment and satisfy themselves that the units are
still suitable for use.

TFC GROUP LLP Tower House, Vale Rise, Tonbridge, Kent TN9 1TB

Tel: [phone] Email: [e-mail] Web: www.tfc-group.co.uk