5.2.
Replacement of electrical thermal element.
Disconnect the trigger from electric installation and disconnect connections of the trigger at the valve.
After unscrewing two M5 screws (item 4 Fig. to section 5.3.) (optionally nut M6), remove the entire
electrical thermal element from the valve with the plate (item 1), as presented in the drawing below. In
order to replace the thermal element (item 2), unscrew the brass cylinder or nut (item 3), place new
thermal element in the opening or onto the shank (as presented in the drawing), and again screw on
the cylinder on the micro-switch shank (item 5).
Assemble the whole to the valve in the reverse order, not forgetting to place the sealing cushion (item
6). Connect the trigger to the electric installation and open the valve.
5.3.
Replacement of the spring.
Before replacing the spring, unscrew the screw (Fig. to section 5.4., item 3) fixing the manual lever on
the drive shaft, set the valve partition in the closed position so that the spring tension is minimum
(lever item 1 resting on the limiter, item 4), and next remove lever (item 1) and damaged spring (item
2). Place the spring on the middle opening in the manual lever and place the whole on drive shaft,
item 5. During placement on drive shaft, manual lever must be set vertically, namely it should rest on
the limiter on the drive board. Set the manual lever in the appropriate distance from the drive board
and screw the screw fixing the lever on the drive shaft. Hook the spring on one of the catches (item 6)
on the drive board, and assess the strength with which the partition is closed.
If necessary, change the spring hooking on the drive board or manual lever,
and again assess correct closing of the valve. Repeat these activities until
your assessment is positive. Correct valve closure occurs where valve
partition freely closes, and the manual lever meets resistance on the drive
board without excess noise. After replacement of the manual lever,
depending on valve version, reassemble the previously removed elements,
and check for their correct operation.
Electrical glass thermal
element for valves type
RK370M
Electrical soldered
thermal element for
valves type RK370M
Fig. to section 5.2.
Fig. to s.5.3.
