OPERATION AND MAINTENANCE MANUAL mcr LAM vents
Page 12 of 20
Figure 13. Connection of union with a copper/steel air tube
IMPORTANT: For safety reasons, the thermal release valve fitted in the vent is not
engaged before shipping. Therefore, the valve must be engaged once the vent has been
installed on the roof.
Figure 14. Thermal release valve
Enabling the thermal release valve
-
check if the tension spring of the puncture
assembly (1) is unscrewed and, if not, unscrew it by
hand until it would not turn any more,
-
fit the thermo bulb (2) in the gas flow regulator,
with the pointed tip towards the body, tighten the bulb
press screw by hand,
-
insert the valve slider (4),
-
manually tighten the piercing assembly spring by
turning the tension screw (1) until it would not turn any
more,
-
check if the piercing needle is withdrawn and if
there is a seal in the bottle seat,
-
screw in the CO
2
bottle (3) by hand.
Figure 15. Pneumatic actuator – lock releasing direction
Nut
Air tube
Compression ring
Copper tube
Compression ring
Nut
Body
5 Actuator locks
