To Replace A Platinel Ii Thermocouple - Barnstead 30400 Operation Manual

c. Loosen the screws and nuts on the terminals of
the element to be replaced.
d. Open the door and pull the defective element
out.
e. Slide the new element into place, threading the
leads through the insulating porcelain bushing on
the back of the furnace.
f. Cut off any excess lead wire. Be careful not to
nick element lead wires. Reinstall terminal con-
nections and tighten screws and nuts securely.
g. Replace the back terminal cover.
h. Reconnect furnace to power supply.
i. Test operation of furnace.
To Replace a Platinel II
Thermocouple
a. Disconnect furnace from power supply.
b. Remove the back terminal cover of the furnace.
(Note placement and connection of T/C lead
wires).
c. Remove the screws on the thermocouple termi-
nals and pull the thermocouple straight out.
d. Insert the new thermocouple into the furnace
with colored beaded lead connected to the posi-
tive (+) marked terminal and other lead to nega-
tive (-) terminal.
e. Secure connections with screws removed earlier.
f. Replace the back terminal cover.
g. Reconnect the furnace to power supply.
h. Test operation of furnace.
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