Blodgett KTT-G Series Installation Operation & Maintenance page 21

Thermostat and gasket installation detail.
Maintenance
c. Disconnect electrical power from the kettle.
d. Disconnect wiring from the gas valve.
e. Disconnect valve to burner tube using a ½" in-line wrench.
f. Remove 90° elbow.
g. Remove burner cover by removing three screws on cover flange
and two hex head bolts located inside electrical box.
h. Disconnect union on gas piping located under burner cover.
i. Remove gas valve.
16. Installation of gas valve
a. Remove piping from old valve and install on new valve.
b. Reconnect the union under burner cover.
c. Reinstall burner cover.
d. Reinstall gas piping removed in step 19.
e. Insure rubber grommet is properly installed.
f. Reconnect electrical wiring in the following order:
i. Black to PV
ii. Yellow to MV-PV
iii. Blue to MV (TH)
g. Reinstall right hand side cover as stated in Section #2 above.
17. Removal of thermostat
a. Remove thermostat knob by pulling straight out.
b. Remove the two mounting screws.
c. Remove thermostat shroud.
d. Tilt kettle to 90°.
e. Remove bottom cover.
f. Remove blue and red wires from thermostat.
g. Unscrew temperature bulb from kettle body being careful not to
damage adjacent pressure switch.
18. Installation of thermostat
a. Tilt kettle 90°.
b. Install thermostat gasket in opening in skirt.
c. Install second gasket on thermostat and align the screw holes
with the holes in the gasket.
d. Place the thermostat through the hole in the kettle skirt and align
screw holes.
e. Replace plastic spacer on thermostat shaft.
f. Replace the stainless knob shroud and align holes.
g. Start both screws but do not tighten.
h. Put Teflon tape on the screw threads of the thermostat bulb and
insert into bottom of kettle. Tighten hand tight plus one turn.
i. Install bottom cover on skirt. Tighten screws and gasket to 10-12
in-lb torque.
j. Turn the kettle upright and tighten the two thermostat mounting
screws.
k. Install knob by pushing straight on shaft.
l. If the knob appears loose, remove and gently spread the two
prongs of the shaft and reinstall knob.
m. Check water level.
n. Remove air from jacket.
OM-KTT/KTC-G 19