SCP SCIENCE
80
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2. Peel the heater off of the graphite block and
ensure there is a Tefl on sheet between the
heater and the graphite block. Check the
integrity of the Tefl on sheet. Clean any
particles off the surface with alcohol.
3. Apply silicon sealant to the Tefl on sheet.
4. Using a smooth but rigid piece of material, spread
the silicon sealant evenly so that a thin layer covers
the surface where the heater will rest.
5. Place the new heater on the surface of the
Tefl on sheet and remove any air bubbles
between the Tefl on sheet and the heater
by planing a smooth but rigid piece of material
across the surface.
6. Reconnect the wiring of the new heater to the
wires originally cut in section 1; there is
no polarity to the black wires as they are AC.
Use the following table to connect the correct
colors to the correct locations:
1a
White wire
Connects to neutral of the heater pad
1b
Parallel connection
Between jumper from 2a
and black heater wire (live)
2
Parallel connection
Between black heater wire (live) and
over-temperature protection switch
7. Check the resistance of the heater between
pin 7 and pin 9 to ensure that the heater has
been properly reconnected. Consult the
following table of resistances to ensure the
correct values:
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