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R600 and HSRL Series LP-Gas Regulators
5
Figure 3. Tank Installation
Figure 4. Basement Installation
VENT OPENING
MUST BE AT
LEAST 3 ft / 0.91 m
HORIZONTALLY
FROM ANY
BUILDING OPENING
BELOW IT
VENT
ASSEMBLY
TO
APPLIANCE
VENT LINE
BASEMENT
FROM FIRST
STAGE REGULATOR
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.
Horizontally Installed Regulators
Horizontally mounted regulators, such as found in single
cylinder installations and ASME tanks, must be installed
beneath a protective cover or under the ASME tank dome,
refer to Figure 3. If possible, slope or turn the vent down
sufficiently to allow any condensation to drain out of the
spring case. Be careful that the slot in the tank dome or
protective cover for the regulator’s outlet piping does not
expose the vent to the elements. The first stage vent on the
Types R632A and R632E should be pointed down.
Meter Installations
Type R642 regulators have an angle body that makes it easy
to install on to a gas meter instead of piping leading directly
into a building.
Meter and Type R642 with Vent over
Regulator Inlet:
Install the regulator per instructions given in the previous
section “Installation Location”.
Meter and Type R642 with Vent over the Regulator
Outlet and Installed over the Top of the Meter:
This installation orientation will put the Type R642 regulator
vent in a vertical down position, but very close to the top
of the gas meter. The regulator vent may become blocked
T14445-A2
T14447-A2
during a freezing rain storm or heavy snows. Therefore,
some type of protective cover should be installed over the
regulator and meter or vent piping should be installed so that
the vent remains open.
Meter and Type R642 Regulator Installed Indoors:
Pipe the regulator vent per the section “Indoor Installations”.
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