ISO 23551-6-2014 pdf free download

ISO 23551-6-2014 pdf free download.Safety and control devices for gas burners and gas-burning appliances Particular requirements Part 6:Thermoelectric flame supervision controls
Dispositifs de corn mande et de sécurité pour brâleurs a gaz et appareils a gaz — Exigences particulières — Partie 6: Equipements thermoélectriques de surveillance deflarnine.
If the manufacturer supplies a knob together with the control, the operating torque shall not exceed 0,017 Nm per mm of knob diameter.
The force or pressure required to operate a push-button directly by hand shall not exceed 30 N for nominal size of controls up to, and including DN 10, and 45 N for nominal size of controls exceeding ON 10, or 0.5 N/mm2, whichever is smaller.
7.6.10 1.2 Test for operating torque and force
The operating torque is measured to check for compliance with 7.6.101.1.
Carry out the opening and closing movement with a constant angular velocity of approximately 1,5 rad/s.
The operating force is measured to check for compliance with 7.6.101.1.
7.6.102 Interlocks
7.6.102.1 Requirement
If present, an ignition interlock shall prevent ignition as long as the closure member to the main burner is open.
If present, a re-start interlock shall prevent the re-opening of the closure member controlling the main burner or the main burner and the pilot burner until the armature plate has separated from the magnetic element.
7.6.102.2 Test for interlocks
The applicable test shall be carried out five times.
Using ignition interlock, verify that ignition can only take place when the pilot gas way is open and the closure member of the main gas way is closed. Thereafter, with the closure member of the main gas way opened, it shall not be possible to operate the ignition device.
To check a re-start interlock, energize the control with electrical means and bring the control in the normal operating position with closure member opened. Verify under these conditions that a re-start attempt is not possible as long as the closure member is in the open position.
7.6.103 Sealing force
7.6.103.1 Requirement.ISO 23551-6-2014 pdf free download.