Mendota ML39 Assembly, Installation And Operating Instructions page 55

Pressure Regulator Conversion
WARNING: Failure to position the parts in accordance
with these diagrams or failu re to use only parts
specifically approved with this appliance may result in
property damage or personal inj ury.
1. See Figure 3-12-1: Using a Torx T20 (supplied) or slotted
screwdriver, remove and discard the two pressure-regulator
mounting screws (A); pressure-regulator tower (B); and the
spring and diaphragm assembly (C), if applicable.
2. See Figure 3-12-Figure 2: Ensure the rubber gasket (D) is
properly positioned. The rubber gasket is pre-fitted as part of
assembly (E).
3. See Figure 3-12-Figures 3 and Figure 3-12-4: Install the new
stepper motor pressure regulator assemble. Use the provided
screws (F), M4 x 0.7 threaded; length of thread L= (16mm + 0 –
0.5mm), steel material, resistance class 8.8 (Figure 3-12-5).
4. Manually thread the two-conversion kit mounting screws into
the valve body. Use a standard screwdriver or T20 Torx bit and
tighten to the screws with a fixing torque of 25lb-in, plus or
minus 5.
Note: If the threads of the value are stripped or damaged,
replace the valve.
5. Install the enclosed identification label (G) to the valve body
where is can be easily seen.
Warning: Installation should be carried out i n a clean
environment.
Warning: This modulating conversion kit must only be
applied as part of a conversion kit supplied by the
fireplace manufacturer for specific fireplace and type
of gas being converted.
Warning: Correct operation of the system cannot be
guaranteed if the conversion kit or value have been
dropped or sustained strong impact.
85-03-01136
Figure 4-13 Pressure Regulator Conversion
ML39 Page 55