CAUTION
Risk of leaks. DO not overtighten EPC supply line ferrules. Damaged ferrules can release
flammable gasses creating a fire or explosion hazard
The ferrules connected on the gas supply side of the EPC manifold are composed of vespel-
graphite. To prevent damage, these ferrules must NOT be over-tightened. Proper tightness is
typically ½ turn past finger-tight.
4.2 Preparing and Inspecting the Oven
1. Ensure that all caps from vents on the sides of the oven (outside) have been removed.
WARNING
Follow proper venting practices. Failure to correctly vent can result in serious injury or
death.
All vent lines and oven exhaust should be vented outside the shelter. The vents should be
connected to a location where the pressure is atmospheric. Connection of oven or analyzer
vents to a variable pressure source such as a flare header should not be done as
chromatographic performance will be severely affected. Backpressure on the oven vent
could cause the T-rating of the instrument to be exceeded, which might become an ignition
source. In addition, in some situations it may be possible for backpressure on oven vents
to force hazardous gases into the shelter. Refer to the comments on Hazardous gases in
the Hazardous Gasses (Page 10) section.
2. Continuing with the main power still off, open the oven door and carefully remove all
shipping material, if present. If columns were removed for shipment, these should be
installed in the oven.
3. For the modular oven it will be necessary to remove the module from the device in order to
remove its cover and perform inspections.
CAUTION
Do not allow the analytical module plate to be scratched.
When removing analytical modules from the modular oven, take care not to scratch the
base plate surface that connects to the manifold. Only set the module on a very clean, dry
surface. It is preferable to use plastic base plate cover when setting the module on a
surface for maintenance.
4. Check for any crimped or broken tubing.
5. Finger test fittings to make sure they are tight.
Initial Startup Procedures
4.2 Preparing and Inspecting the Oven
Installation Manual
38 Installation Manual, 12/2019, 2000595 Rev 1
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