PEGLER Terrier Two Way Thermostatic Radiator Valve Installation Guide

Terrier Two Way Thermostatic Radiator Valve
Installation Guide 

INSTALLATION

Directions for use:
Angle TRV
The universal terrier TRV is designed to operate with water flow in either direction. The 15mm size may be fitted in either the horizontal OR vertical position. The most  ffective position is to have the head in  a horizontal position where the greatest efficiency will be obtained.
Straight TRV
Straight bodied valves should not be used in the top connection of a radiator as heat from the radiator will affect the sensor.
Correct installations
Correct installation and maximum performance will be achieved if: The thermostatic head is not concealed behind furniture, curtains or drapes, hidden under shelves,  anelling or in a recess where air pockets can occur.
The thermostatic head is not exposed to direct sunlight or draughts.

Fitting

1. Thoroughly clean any pipe work to be connected to the valve.
2. Drain down existing system, connecting a hosepipe to the lowest drain off point available.
3. Screw 1/2” BSP tail into radiator tapping, using suitable jointing material e.g. PTFE tape.
4. Connect valve body to tail and tighten nut.
5. Cut and fit copper tube to valve body – tightening nut and cone.
6. Remove manual shut off cap and store safely.
7. Turn Sensor head to indicate “5” in setting window.
8. Position sensor head so that setting window can be viewed and hand tighten securing ring to valve body.
9. Set sensor head to required temperature setting.
10. When fitting a lock shield valve, this must be set to control the water flow through the radiator to the correct level.

PLEASE NOTE:
To avoid the problem of hydronic (water flow) noise it is recommended that the differential pressure does not exceed 0.2 bar. It is strongly  recommeded that a differential   ressure valve should be fitted to any system with TRV’s (Pegler order code for differential pressure valve 678021/22mm) will be suitable for most domestic installations. Larger sizes are available if required.
USER INSTRUCTIONS

1. Operating Description
   The influence of uncontrolled heat gains from cooking, lighting and sunshine etc., can lead to wasteful overheating. The terrier TRV is designed to react to temperature fluctuations and allow you to control individual room temperature.
   The sensor head contains a powerful wax-filled sensor which senses temperature changes. These variations cause expansion and contraction of the thermal element which is transmitted to a valve seat which regulates the water flow to the radiator

2. Setting the TRV
   Initially set the TRV to the required room temperature from the table below e.g. Position 3/ 20°C. The TRV should be left for at least 1 hour to allow the temperature to stabilise. If a higher or lower room temperature is required simply adjust the setting accordingly and repeat the process.

3. Temperature Settings
   The TRV settings are factory calibrated as indicated in the table below.

Note: These temperatures may vary slightly, depending upon the nature of the installation

4. Range Limiting or Fixed Set Temperature The terrier TRV has the facility for fixing the thermal head at a set temperature or to limit the range of operation.

5. How to use limiting pins To obtain a fixed set point, locate a peg in the slot either side of the selected setting and push home. To set a limited range for temperature control, first locate a peg in the slot to the right of the viewing window for the lowest temperature setting required. Adjust the valve head to display the maximum temperature desired. Locate a peg in the slot to the left side of the viewing window. Push both pegs home. The head will now be adjustable between the selected range of temperature.
   ‘ If you require this facility please call 0870 1200281 and order your free pins on order code 850888.

6. Frost Protection If you plan to be away from home for any length of time the TRY can be turned to the frost protection setting “V. If the temperature falls below 71 the valve will automatically open giving protection against freezing. (Provided that the boiler remains in operation via a frost stag

7. Removal of Radiator
   The “0” Setting on the TRV is a positive “Off” position. This will enable a radiator to be removed for maintenance purposes. To avoid accidental operating of the valve or damage whilst decorating the manual shut off cap may be used for added security instead of the TRY head. In this case, remove the TRV sensor head by unscrewing the securing ring and replacing with the manual cap BEFORE removing the radiator.

 TECHNICAL DATA

Aalberts Integrated Piping Systems Ltd
St. Catherine’s Avenue. Doncaster
South Yorkshire. DN4 8DF England
Tel: +44 (0)1302 560   560
Fax: +44 (0)1302 560 203
Email: info@siSpegler.co.uk

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