Thermo Scientific BF51841BC, Руководство по эксплуатации

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Thermo Scientific 4-1
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Installation
Location
Locate your furnace in a level area which is free from vibration. Allow a minimum
of three (3) inches of space at sides and (12) inches above for air flow around the
unit. Access to the furnace for routine maintenance should also be considered,
especially when the furnace is wired.
Wiring
Thermo Fisher Scientific model BF51841 furnaces are designed for operation on
240 VAC. The furnaces will operate on 208 volts, but will have reduced heat up
rates.
Power and ground wires are not provided with the furnaces.
1. Suitable lengths of properly sized wires must be acquired prior to the
installation of your furnace. The BF51841 will draw approximately 20 amps on
240 VAC. Minimum recommended wire gauge size is 14 gauge. A high
temperature (150 °C) wire casing is also recommended. A ground wire should
be provided per local code.
2. Remove the right panel (side with High Voltage label) of the furnace by
removing the appropriate screws. Removing the side panel allows for access
to the terminal block and grounding screw, located at the base of the unit.
3. The 7/8 inch diameter hole located on the lower rear panel may be used to
mount a standard 1/2 inch electrical conduit connector.
4. Thread two properly sized power wires and one properly sized ground wire
through the conduit hole. The wires should be marked L1, L2, and ground.
Insert power leads L1 and L2 into the terminal block and tighten down
securely. Ground on the provided ground screw.
5. Check that the thermocouple (top left of rear of furnace chamber) is securely
mounted and that it is not damaged. Remove small cover on Rear panel of
furnace to check thermocouple wiring connections. Red is always negative
.
Refer Figure 2. “Thermocouple”.
6. As a final inspection step, check that all electrical connections are secure and
verify that the door stop bracket properly contacts the power interrupt switch