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SECTION 3 – GAS ENGINEER SERVICING INFORMATION
3.0 IMPORTANT INFORMATION FOR INSTALLERS.
THE INFORMATION CONTAINED IN THIS SECTION IS FOR EXCLUSIVE USE OF QUALIFIED AND
APPROVED SERVICE PERSONNEL.
• THE HANDSET IS SUPPLIED PAIRED TO THE VALVE BY FIRE MANUFACTURER. DO NOT ALTER PAIRING.
• THE HANDSET IS CONSCIOUSLY DESIGNED TO MINIMIZE THE RISK OF ACCIDENTAL OPERATION AND CAN THEREFORE TAKE
A LITTLE TIME TO LEARN TO USE COMFORTABLY.
• PLEASE READ SECTION 2 AND EXPLAIN TO THE CUSTOMER TO ENSURE UNDERSTANDING OF EACH PARTICULAR HANDSET.
• THERE ARE COMPANION VIDEOS AVAILABLE ON YOUTUBE (SEARCH: TESC GAS CONTROL)
• IF PAIRING HAS BEEN INADVERTENTLY ALTERED THE HANDSET WILL NOT WORK, IT WILL NEED A FACTORY RESET –
FOLLOW INSTRUCTIONS IN SECTION 2.
MOST COMMON CAUSES FOR FAULT.
• BATTERIES NEED REPLACING.
• BATTERIES MOUNTED INCORRECTLY.
• CONTAMINATION OF BATTERY CONTACTS (CLEAN WHERE POSSIBLE, REPLACE VALVE/HANDSET IF NECESSARY).
• CONTAMINATION OF PILOT (SEE BELOW).
• CONTAMINATION OF VALVE INTERNALS FROM GAS PIPE PARTICLES.
• FAULTY GAS SUPPLY.
• FAULTY THERMOCOUPLE OR CONNECTIONS.
• CONTAMINATION IN GAS SUPPLY.
3.1 SYSTEM OPERATION EXPLANATION.
The gas control valve is one component, containing the gas valve, control electronics, ignition unit, and battery
box.
It is a full sequential ignition system (with no standing pilot).
It utilizes both a conventional thermoelectric thermocouple, and electronic flame sensing for its operation.
The ignition phase (first 15-30 seconds) operates with the thermocouple excluded from the circuit, subsequently
the thermocouple holds the valve magnet open, as per a conventional system. (If the burner stays lit only for
this duration, it is a sign of no thermocouple current, or insufficient thermocouple current reaching the valve).
The electronic flame sensing device is in constant operation whilst the valve is in operation.
It is important that, at all times, the pilot flame is in good order, both the thermocouple tip and electrode tip are
immersed within the pilot flame, and the ignition cable is undamaged & well connected to the valve.
The handset is not essential for operation, it is a wireless interface, it is not the control.
When problem solving it is important to check operation using the buttons on the valve itself, this should be
done in the first case, DO NOT rely on the handset.
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