Emerson CSB400 Manual de Instruções descarregar pdf (Página 14)

CSB400 Series

Installation Location

• The installed regulator should be adequately

protected from vehicular trafc and damage from

other external sources.

• Install the regulator with the vent pointed vertically

down, see Figures 7 through 10. 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 0.91 m /

3 feet 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.

Downstream Control Line Installation

WARNING

Failure to install a downstream control

line could result in a hazardous condition.

Install downstream control line(s) to the

slam-shut device when construction uses

external pressure registration.

The regulator and slam-shut device

will not control pressure or shutoff if a

downstream control line is not installed

on those constructions where external

pressure registration is required.

CSB400 Series regulators with an “ET” or “EN” in the

type number use external pressure registration. To

communicate the downstream pressure to the regulator,

connect a downstream control line tubing to the 3/4 NPT

control line tapping in the lower diaphragm casing and

connect the other end of the tubing downstream of the

regulator outlet with a minimum distance of 4 times the

outlet pipe diameter.

For Types CSB400 and CSB404 with external control

lines, use tubing with an outer diameter of 9.5 mm /

0.375 inch or larger. For Types CSB420, CSB424,

CSB450 and CSB454 with external control lines, use

tubing with an outer diameter of 13 mm / 0.5 inch or larger.

The Types CSB410, CSB414, CSB430 and CSB434

are dedicated wide-open monitoring regulators and are

installed upstream of a primary working regulator. Refer

to Figure 8 for installation of the downstream control

line. To communicate the downstream pressure to the

wide-open monitor regulator, connect a downstream

control line tubing to the 3/4 NPT control line tapping in

the lower diaphragm casing of the monitor regulator and

connect the other end of the tubing downstream of the

regulator outlet with a minimum distance of 4 times the

outlet pipe diameter.

For Types CSB410 and CSB414, use tubing with an

outer diameter of 9.5 mm / 0.375 inch or larger.

For Types CSB430 and CSB434, use tubing with an

outer diameter of 13 mm / 0.5 inch or larger.

Downstream Control Line Installation with

Integral True-Monitor™

Refer to Figure 9. When installing the Types CSB403

and CSB423 regulators, connect downstream control

line tubing to the lower casing of the primary regulator,

and run the tubing downstream of the regulator outlet

with a minimum distance of 4 times the outlet pipe

diameter. Connect a second, separate downstream

control line tubing to the lower casing of the Integral

True-Monitor, and run the tubing downstream of the

regulator outlet with a minimum distance of 4 times the

outlet pipe diameter.

For Type CSB403 with external control lines, use tubing

with an outer diameter of 9.5 mm / 0.375 inch or larger

for both the primary regulator and Integral True-Monitor.

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Emerson CSB400 Manual de Instruções Página 14

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