Thermaco TESC Information Booklet

Remote gas valve

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TESC

REMOTE GAS VALVE

INFORMATION BOOKLET

Thermaco Ltd

Table of Contents

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Kevin Cooke

February 18, 2025

Why do the batteries drain so quickly in the TESC Valve

Summary of Contents for Thermaco TESC

Page 1 TESC REMOTE GAS VALVE INFORMATION BOOKLET Thermaco Ltd...
Page 2 BASIC COMPONENTS TESC VALVE ISPLAY DISPLAY ANDSET ANDSET...
Page 3: Table Of Contents
CONTENTS SECTION 1 CARE AND MAINTENANCE OF THE FIRE CONTROL PAGE What you should do? How do you know when to replace the batteries? What happens if I do not replace the batteries? How to replace the batteries. What is the meaning of the red indicator (non-display handset, valve, or switch) What should I do if valve indicating an error? SECTION 2...
Page 4: What You Should Do
SECTION 1 – C ARE AND AINTENANCE 1.0 W HAT SHOULD YOU DO • Replacing the batteries at least every 12 months will help prevent damage to the valve and handset through leaking batteries. • Only use new, high quality, alkaline batteries. •...
Page 5: What Is The Meaning Of The Red Indicator
HEN REMOVING AND REPLACING BATTERIES ENSURE NOT TO BEND OR DISPLACE BATTERY CONTACTS THE BATTERIES SHOULD BE HELD FIRMLY IN PLACE BY THE METAL CONTACTS T IS IMPORTANT TO ENSURE CONTACTS ARE CLEAN AND FREE FROM ANY CONTAMINANTS OR “+” SURFACE DAMAGE AY CLOSE ATTENTION TO THE ORIENTATION MARKINGS ON BATTERIES AND EQUIPMENT ENSURE THAT SYMBOL...
Page 6: Frequently Asked Questions
SECTION 2 – F REQUENTLY SKED UESTIONS NOTE: USE THIS GUIDE IN ASSOCIATION WITH YOUR GAS FIRE USER HANDBOOK, ONLY ATTEMPT WORK AS RECOMMENDED IN THOSE INSTRUCTIONS AND WHERE SUITABLY QUALIFIED 2.0 W HAT SHOULD DO IF MY FIRE DOES NOT LIGHT OR STAY LIT •...
Page 7: Restoring Communication With A Display Type Handset
A video companion for this process is available here, or search “TESC Gas Control - Display Handset - Factory reset - to enable it to be paired again”. The handset has now been reset to factory settings and is ready to receive a new pairing instruction (section...
Page 8: Pairing The Handset With A Display Type Handset
This indicates the handset is in fire operation mode, and has established good communication with the valve. A video companion for this process is available here, or search “TESC Gas Control - Display handset pairing (May 2014 onwards)”.
Page 9: Using The Display Type Handset
2.4 U SING THE DISPLAY HANDSET IMPORTANT USER INFORMATION – READ THIS BEFORE ATTEMPTING TO OPERATE THE FIRE NOTE: The handset is paired to the fire during manufacture. DO NOT ALTER THE PAIRING. For safety reasons, the handset is designed so as to avoid accidental operation. If, during proper use, the handset fails to communicate with the valve there is a possibility that the pairing has been inadvertently altered –...
Page 10: Restoring Communication With A Standard Non-Display Handset
5. Hold handset to activate buttons, the green light should now be flashing multiple times per second meaning it is ready to be paired with the valve. A video companion for this process is available here, or search “TESC Gas Control - Displayless Handset factory reset (to enable to be paired again)”.
Page 11: Using The Standard Non-Display Handset
If you wish to start the fire again you must wait for light to stop flashing before trying to re-start. A video companion for this process is available here, or search “TESC Gas Control - using Non Display Handset”.
Page 12: Gas Engineer Servicing Information
HE HANDSET IS CONSCIOUSLY DESIGNED TO MINIMIZE THE RISK OF ACCIDENTAL OPERATION AND CAN THEREFORE TAKE A LITTLE TIME TO LEARN TO USE COMFORTABLY • LEASE READ SECTION AND EXPLAIN TO THE CUSTOMER TO ENSURE UNDERSTANDING OF EACH PARTICULAR HANDSET • : TESC G HERE ARE COMPANION VIDEOS AVAILABLE ON SEARCH ONTROL • –...
Page 13 ASSESSMENT. Ensure fire is cool before commencing any work. Ensure batteries are new, mounted correctly, and connections are good. Start with the valve in standby position – slide switch in ON (I) position, red light on valve off, and fire burner also off.
Page 14: Error Codes
3.2 E RROR CODES Error codes are produced to assist diagnosis of why the fire cannot/will not start. They appear if the control detects abnormal conditions with the fire, environment, installation, components, or internal electronics. Even if a display handset is not connected, checking for the below faults is still valid. The illuminated red LED on the valve body shows the valve is in error state.
Page 15 Indicates that there is a possibility that the level of CO in ambient atmosphere is too high. This error will usually be generated when there had been a good electronic flame signal, and the temperature of the thermocouple was hot enough, but has since become cooler. Possible reasons:- •...
Page 16 Problem with internal contacts of slide switch (sliding on/off multiple times may clear this issue). • Batteries mounted incorrectly. E08, E09, E10, E51 Indicates a device connected to TESC extension socket does not work correctly. Possible reasons:- • If nothing connected – are links missing, in wrong position, or connected badly? •...
Page 17 E19, E20, E27, E50, E54, E57, E58, E59, E60, E61 Indicates internal CPU diagnostic self-test has returned invalid results. Possible reasons:- • EMC issue (try twisting ignition cable around thermocouple wire several times to quench radiated EMC emissions). • Spark tracking out somewhere other than at electrode causing unusual interference. E21, E22 NOT APPLICABLE.
Page 18 E33, E34, E35, E36, E37, E38, E39, E40, E41, E42 Indicates internal piston is not moving freely. Possible reasons:- • Contamination of valve inlet/outlet with debris from supply pipe or other. • Mechanical damage of valve. NOTE: After cleaning and before resetting error codes, ensure fire has been allowed to fully cool. Upon starting the valve will reinitialize and perform a re-calibration.
Page 19: Pilot Information And Servicing
3.3 P ILOT INFORMATION AND SERVICING Under normal circumstances, changing the pilot every 12 months forms part of any warranty applicable to the fire. The pilot is a critical part for continued safety and good operation. Cleaning of the pilot may be required more frequently than just the annual service, depending on the fire construction and installation.
Page 20 DUST BLOCKING AIR INLET APERTURE EFFECT ON PILOT FLAME IF AIR INLET BLOCKED CORRECT APPEARANCE OF PILOT FLAME BOTH ELECTRODE TIP AND THERMOCOUPLE TIP IN BLUE FLAME...
Page 21 THINGS TO CHECK! PILOT ASSEMBLY. • Check for blockage in gas pipe to pilot, or injector inside pilot. • Check for a contaminated pilot assembly. NOTE: The pilot is an integral part of the safe operation of the fire and MUST be changed at every annual service to ensure safe operation of the fire, this will also help to reduce the risk of problems during operation.
Page 22: Other Useful Information
3.4 O THER USEFUL INFORMATION CORRECT POSITION OF THERMOCOUPLE CONNECTIONS ON THE VALVE...
Page 23 BATTERY INFORMATION. If a display handset is paired with the valve, the display will show the battery level in both the valve and the handset (by toggling between FC [fire control] and RC [remote control]). • Battery symbol shows full battery indication and letters FC – meaning the Fire Control batteries are in good condition.
Page 24: Where To Obtain Spares
3.6 W HERE TO OBTAIN MORE INFORMATION The gas appliance manufacturer should provide further details on their own website, but companion videos for handset processes are available on YouTube (search for TESC Gas Control or subscribe to TESC Help channel).