Furnace Replacement - Ametek Dycor CG1000-RTP User Manual

Furnace Replacement

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Removing the Old Furnace
Figure 7-4. Furnace assembly.
1. Remove the cell mount nut (see the "Cell Replacement" section for
help). The cell and inlet tube can be removed as a single unit.
2. Disconnect thermocouple wires from TB2, TC+ and TC- on the back-
plane board.
3. Disconnect the furnace wires from TB1, AC and AC on the backplane
board.
4. Remove all inlet tubing. Remove the T-fitting from stainless steel ex-
haust tubing.
5. Place a nut driver on the left and right of the furnace. Take the nut
driver on the left and loosen it until the kep nut can be removed. Pull
the plate, acorn nut, and all-thread piece out to the right and remove.
disconnect the power cord from the analyzer when servicing system
components. High voltages are present inside the analyzer when
power is applied.
The furnace is hot, even after power has been removed from the ana-
lyzer. use caution and wear appropriate gloves if removing the furnace
insulation cover to access the furnace.
Always use a backup wrench when working on sensor plumbing. This
helps to prevent damaging welds and distorting sensor plumbing
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Parts Replacement 7-5