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18.8) REMOVING AIR INLET PLATE
Fig. 45
1. Disconnect tubing from both brass pressure test fittings.
2. Remove brass nut from pressure test fitting.
3. Disassemble components from the control box.
18.9) REMOVING THE FAN
Fig. 46
1. Disconnect the electrical wires from the fan (see Section 12.0 for connection details.
2. If a flued installation, disconnect the flue from the Fan.
3. Loosen the nuts of the Torctite Coupling securing the Fan Connector to the Radiant Tube and draw the
Fan Assembly off the Radiant Tube.
4. Unscrew the three M6 x 12 setscrews and washers securing the Connector and Orifice Plate to the fan.
5. Inspect the main impeller and secondary cooling impeller and remove any dust by brushing with a soft
brush. Check that the impeller rotates freely and that there is no excessive play in the bearings. The
bearings are pre-lubricated and require no attention.
6. When re-assembling the Orifice Plate and Connector, a new Gasket must be fitted between the Fan
housing and Orifice Plate (see Fig. 46).
Form #4420110
Oct 2019
-61-
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