Service Line Connection - Labconco Cell Logic+ B2 User Manual

Service Line Connection

Service fixtures are not pre-installed on all models. If your model does not include a
service fixture, this step may be skipped. A service fixture can be field installed at any
time, the service fixture kit will contain instructions for installing the fixture. Follow the
instructions below to make the plumbing connection to the service fixture.
Safe for use with vacuum, air, carbon dioxide, nitrogen, and argon. Not for use with
water, steam or high purity gasses like oxygen and hydrogen. Contact Labconco for
additional valve options.
Note: Some models have a solenoid valve connected to the service valve on the right
side, rear position. The solenoid prevents gas from flowing to the service valve when
the cabinet's blower is off, or there is a loss of electrical power. It is the only service
valve position that can be fitted with a solenoid valve. Connect the gas service to the
solenoid valve.
The incoming service line(s) should be connected to the tube compression fitting(s) on
the outside of the liner wall as shown in Figure 4-5. Open the side panel, then:
1. Ensure that the tubing is ¼ inch O.D., soft metal, and that the end has been
completely deburred.
2. Route the tubing from the rear of the cabinet, ensuring that it will line up with the slot
in the back of the side panel. The slot is located from 8 ¾ to 11 ¼ inches (222 to 288
mm) from the bottom of the cabinet.
Note: Make sure that the tube routing will not contact any electrical wires. DO NOT
loop service line tubing within the side panels of the cabinet.
3. Make sure that the nut on the 90 degree tube fitting is loose, but do not remove it.
Make sure the tube ferrule is in the fitting.
4. Push the tube into the fitting until it is properly seated. The tube will go
approximately ¾ inch (19 mm) into the fitting.
5. Tighten the tube fitting nut hand
tight and then, using a 7/16-inch
wrench, tighten it at least ¾ turn
more.
6. Close the service valve in the
cabinet and then slowly open the
shutoff valve on the service valve.
Test all fittings for leakage. Tighten
the tube nut slightly if needed.
Petcock valve
(pre-installed)
Coupling
(pre-installed)
28
Figure 4-5
90 degree fitting
(included)