Thermador PROFESSIONAL Pro Harmony PRD305PH Manuel D'instructions page 7

5. Insert the venturi into the burner pedestals. Secure with
the black T-30 Torx screws, starting both before fully
securing either screw. Ensure that the venturi does not
'lock down'. The venturi should be pulled out smoothly
and easily once the pedestals have been secured.
6. For the single piece ignitor, reconnect the ignitor wire to
the electrode on the burner base. Carefully feed the
ignitor wires back through their burner pedestals while
setting the burner bases back into place. Ensure that
the wires do not crimp or bunch.
For the two piece ignitor, set the burner bases back on
the burner pedestals (wire feed not necessary).
7. Secure with the burner bases with T-30 Torx screws,
starting both before fully securing either screw.
8. Replace burner caps and grates.
Setting Valve Screws
Valve Screw
Remove the protective cap before use.
1. SHUT OFF THE GAS SUPPLY TO THE APPLIANCE.
2. DISCONNECT THE ELECTRICAL POWER.
3. Remove knob from the valve stem by slowly pulling
knob straight out, away from the control panel.
4. Remove the bezel-mounting
A flat-head screwdriver with
an 1/8" [3.0 mm] wide, .020"
[0.50 mm] thickness tip
(included) is used to
reposition the valve screws
for minimum flow settings
on manual valves.
screw located to the right of
the valve stem, using a T-20
Torx driver.
5. To engage the valve screw,
6. FOR STANDARD BURNERS, adjust the valve screw
by turning the valve screw clockwise about an
1/8 turn. Adjust the valve screw as little as required to
reach satisfactory simmer results. Due to normal
fluctuations in gas pressure, over-adjustment of valve
screw may affect flame stability.
7. FOR EXTRALOW BURNERS, auto-cycling of the
®
XLO burners allows for exceptional simmer results
and adjustment is not required. However, adjustment
to the valve screw may be performed to suit individual
preference. Always turn OFF the power to the
appliance before adjusting flame settings. Turn the
valve stem to the LOW position for proper access to
the valve screws through clearance holes in the
potentiometers.
By-pass screw access By-pass screw access By-pass screw access
hole with valve in OFF hole with valve in OFF hole with valve in OFF
position. position. position.
insert the included flat-blade
screwdriver with 1/8'' blade
into the hole in the bezel
created by removal of the
mounting screw. You should
feel the engagement of the
screwdriver and the valve
screw.
By-pass screw access By-pass screw access By-pass screw access
hole with valve in LOW hole with valve in LOW hole with valve in LOW
position. position. position.
English 5