Startup - Emerson FISHER CS200 Series Instruction Manual

General Installation Instructions
Before installing the regulator,
• Check for damage, which might have occurred
during shipment.
• Check for and remove any dirt or foreign material,
which may have accumulated in the regulator body.
• Blow out any debris, dirt or copper sulfate in copper
tubing and the pipeline.
• Apply pipe compound to the external threads of the
pipe before installing the regulator.
• Make sure gas flow through the regulator is in the
same direction as the arrow on the body. "Inlet" and
"Outlet" connections are clearly marked.
Installation Location
• The installed regulator should be adequately
protected from vehicular traffic and damage from
other external sources.
• Install the regulator with the vent pointed vertically
down, see Figure 4. If the vent cannot be installed
in a vertically down position, the regulator must be
installed under a separate protective cover. Installing
the regulator with the vent down allows condensation
to drain, minimizes the entry of water or other debris
from entering the vent, and minimizes vent blockage
from freezing precipitation.
• Do not install the regulator in a location where
there can be excessive water accumulation or ice
formation, such as directly beneath a downspout,
gutter, or roof line of building. Even a protective
hood may not provide adequate protection in
these instances.
• Install the Regulator so that any gas discharge through
the vent or vent assembly is over 3 feet / 0.91 m away
from any building opening.
Regulators Subjected to Heavy
Snow Conditions
Some installations, such as in areas with heavy snowfall,
may require a hood or enclosure to protect the regulator
from snow load and vent freeze over.
Installation with External
Overpressure Protection
If the regulator is used in conjunction with a Type 289H
relief valve, it should be installed as shown in Figure 4.
The outside end of the vent line should be protected with
a rainproof assembly.
The Type 289H is typically set 10-inches w.c. / 25 mbar
higher than the outlet pressure setting of the regulator, up
to 30 inches w.c. / 75 mbar outlet pressure. For pressure
greater than this, set the Type 289H 0.75 psi / 0.05 bar
higher than the outlet pressure setting of the regulator.
CS200 SERIES
REGULATOR
REGULATOR VENT
POINTED DOWNWARD
Figure 4. CS200 Series Regulator Installed with Vent Pointed
Downward and with a Type 289H Relief Valve
for High Capacity Relief
Vent Line Installation
The CS200 Series regulators have a 1 NPT screened
vent opening in the spring case. If necessary to vent
escaping gas away from the regulator, install a remote
vent line in the spring case tapping. Vent piping should
be as short and direct as possible with a minimum
number of bends and elbows. The remote vent line
should have the largest practical diameter. Vent piping
on regulators with internal relief must be large enough
to vent all relief valve discharge to atmosphere without
excessive backpressure and resulting excessive pressure
in the regulator.
Periodically check all vent openings to be sure that they
are not plugged or obstructed.
Outlet pressure ranges are shown on Table 3. Outlet
pressure greater than 5 psi / 0.34 bar above the setpoint
may damage internal parts such as the diaphragm head
and valve disk. The maximum emergency (casing)
outlet pressure is 25 psig / 1.7 bar.

Startup

CAUTION
Pressure gauges must always be used
to monitor downstream pressure during
startup. Procedures used in putting this
regulator into operation must be planned
accordingly if the downstream system is
pressurized by another regulator or by a
manual bypass.
CS200 Series
PROTECT VENT PIPE
WITH RAIN CAP
TYPE 289H
RELIEF VALVE
7