Spectra Watermakers CATALINA 300 MPC-5000, Installation & Owner'S Manual

Page: 17 / 63

17
Membrane Pressure Vessel Relocation
Use ONLY Dayco Imperial Nylo-Seal 88-NSR-
1
/
2
tubing for high pressure connections. Pay
attention to the direction and flow path of the tubing before disassembly. Make sure that you
reinstall the tubing in the same manner. Rotate the 90 degree high pressure tube fittings on the
Clark Pump for ideal tube runs. The high pressure fittings are typically pre-installed at the fac-
tory. These fittings seal with an O-ring and require no Teflon tape or pipe dope. Loosen the
backing nut rotate the fitting and reseat the backing nut.
Follow the high pressure tube connection instructions on the next page. Connect the tubes to
one of the components, secure the tube runs, and then trim and connect to the other component.
A 90 degree bend in a tube is better than a 90 degree fitting. A tube, when mounted, should
have at least
one gentle bend to allow for expansion. Do not connect a tube straight between
hard mounted fittings.
When connecting the tubes to their components, be sure to hold the fitting body with a wrench
during the final tightening. Of special note are the stainless steel tube fittings on the membrane
housing which seal with an O-ring and should be seated all the way in. Hold the fitting with a
wrench while installing the tube.
The fittings on the Clark pump have an O-ring seal and can be re-oriented by backing out the
O-ring Stop nut. Rotate the fitting to align with the tube and tighten the nut
just past hand
tight. DO NOT over tighten!