Honeywell HON 5020 User And Maintenance Manual page 38

HON 642a operating and
measuring impulse lines
that are pre-installed and
that need to be installed
Preparing the
materials
Installing the operating
and measuring impulse
lines
Final checks
HON 5020 gas pressure regulator with HON 640a / HON 642a pilot
Figure
Some of the measuring impulse lines will come pre-installed:
Figure
Imperial HON 642a:
Prepare the following materials:
 Pipes, connecting pieces, and fittings as per the specifications in the Technical specifica-
tions (see page 17)
 Shut-off devices for the operating and measuring impulse lines, as well as other acces-
sories, as required, as per the Basics for installing the device in a pipe (see page 28) sec-
tion.
The installation of the operating and measuring impulse lines depends on the local conditions
and the gas regulating line in which the gas pressure regulator is being used. Please refer to
the Basics for installing the device in a pipe (see page 28) section for more information on
what needs to be ensured without fail in the corresponding design and implementation.
Conduct a final inspection to check whether the following criteria are met:
 All threaded joints on the connection lines have been checked to ensure that they have
a secure fit.
Transport and installation
No. Designation, category, installation condi-
tion
No. Designation, category, installation condi-
tion
1 Inlet pressure line,
operating line,
pre-installed
2 Motorization line,
operating line,
pre-installed
3 Outlet pressure line,
operating line,
pre-installed
4 Vent line,
operating line,
needs to be installed
5 Inlet pressure measuring impulse line,
Measuring impulse line,
needs to be installed
38