Algas SDI VAPORAIRE M-Series, Operation & Maintenance Manual

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Installation
2-16
Algas-SDI Operations & Maintenance Manual – P/N - 54264
INSTALLATION INSTRUCTIONS FOR ALL LPG-AIR/VAPOR MIXERS
Refer to the installation diagrams for both mixer series on the previous pages.
1. Algas-SDI mixing systems are normally installed outside of plant buildings on
a level concrete pad.
Refer to the typical installation diagrams
for both types
of mixers. Secure the system to the concrete pad using four 3/8” anchor
bolts to a concrete pad at least 6" thick. Protect the equipment against
damage from moving vehicles by using an appropriate barrier.
2.
Vapor piping between the vaporizer and mixer should be kept as short
as possible
and should slope constantly upward from the vaporizer outlet to
the mixer. This installation arrangement allows re-condensing liquid to run
back into the vaporizer. Provide a shutoff valve between the vaporizer and
the vapor inlet header.
3. An electrical service connection must be available to the control box mounted
on the mixing system.
Refer to the Data Sheet
for electrical service
requirements. All wiring should be in accordance with NFPA 70, suitable for
the proper area classification. A conduit seal
MUST
be installed within 18" of
the control box. A disconnect should be provided by the installer outside of
the classified area. Provide and connect a proper electrical ground to the
unit.
4. A shut-off valve and check valve should be installed between the connection
point of the natural gas line and the surge/accumulator outlet.
5. Clean all pipelines prior to making final connections. Welding slag can jam
solenoid valves. If water is used for hydrostatic testing, make sure
ALL
water
is removed from piping. All joints require a pipe sealant suitable for LPG.
Test for leaks using an inert gas such as carbon dioxide or nitrogen to
operating pressure. Check all connections using an appropriate leak
detection solution or device. Any leak is unacceptable.
Eliminate all leaks
prior to operation
.
NOTE
Heat tracing on the inlet pipes may be required to prevent
re-condensation of LP-gas in cold climates.