Installing The Device Connections - Honeywell HON 512 User And Maintenance Manual

5.3

Installing the device connections

Categories of connection
lines between pilot,
actuator assembly, and
gas regulating unit
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
Install the electrical
connection for the op-
tional displacement
transducer
HON 512 with HON 650 pilot user manual
The connection lines are categorized as follows:
▪ Measuring impulse lines
The pressure of a gas is found inside measuring impulse lines. Gas does not flow
through these lines.
▪ Operating lines
A gas flows through operating lines. The specific operating lines are as
follows:
▪ Vent lines
▪ Blowdown lines
▪ Bleed lines
▪ Return lines
Some of the measuring impulse lines will come pre-installed:
Figure
Prepare the following materials:
▪ Pipes, connecting pieces, and fittings as per the specifications in the Technical specifica-
tions (see page 22)
▪ Shut-off devices for the operating and measuring impulse lines, as well as other acces-
sories as required.
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 36) section for more information on
what needs to be ensured without fail in the corresponding design and implementation.
Transport, installation and start-up
No. Designation, category, installation condi-
tion
1 Inlet pressure line,
operating line,
pre-installed
2 Bleed line,
operating line,
pre-installed
3 Return line,
operating line,
needs to be installed
4 Motorization line,
operating line,
pre-installed
5 Vent line,
operating line,
needs to be installed
6 Outlet pressure measuring impulse line,
Measuring impulse line,
needs to be installed
48