Honeywell HON 670 Guide

HON 670 / HON 671
Controllers
Component documentation,
Maintenance manual and spare parts

Contents
HON 670 / HON 671 Controllers Component Documentation 2
Contents
1General considerations 3
1.1 About this component documentation 3
1.2 About the safety notices 5
2Description 6
2.1 Intended use 6
2.2 Device models 7
2.3 Labels/Markings 7
2.4 Physical design and operation 9
2.5 Technical specifications 13
3Safety 15
3.1 Basic safety rules 15
3.2 Requirements concerning the workforce, personal protective gear, workplaces 16
4Maintenance 17
4.1 Maintenance schedule 17
4.2 Preparing for the maintenance 17
4.3 Removing the pressure unit from the controller 18
4.4 Maintenance on the controller with diaphragm measuring unit 19
4.5 Maintenance on the controller with metal bellows measuring unit 27
4.6 Maintenance on the pressure unit 35
4.7 Mounting the pressure unit on the controller 38
4.8 Completing the maintenance 38
5Storage and disposal 39
5.1 Storing the device 39
5.2 Disposing of the device 40
6Appendix 41
6.1 Re-engage differential 41
6.2 Additional information regarding spare parts 42
6.3 K16, K17, K18, K19: Spare parts drawing for baseplate and connections 44
6.4 K16: Spare parts drawing for diaphragm measuring unit 45
6.5 K16: Spare parts drawing for diaphragm measuring unit with ball guide sleeve 48
6.6 K17: Spare parts drawing for diaphragm measuring unit 51
6.7 K17: Spare parts drawing for diaphragm measuring unit with ball guide sleeve 53
6.8 K18: Spare parts drawing for metal bellows measuring unit 55
6.9 K19: Spare parts drawing for metal bellows measuring unit 58
6.10 K16, K17, K18, K19: Spare parts drawing for pressure unit 60
6.11 Maintenance and servicing parts for the controllers 60
6.12 Lubricants, threadlockers, and special tools 65

General considerations
HON 670 / HON 671 Controllers Component Documentation 3
1General considerations
Topic Page
About this component documentation 3
About the safety notices 5
1.1 About this component documentation
This component documentation applies for the controllers HON 670 / HON 671.
This component documentation provides all individuals with the information required in
order to safely handle the device in connection with the following tasks:
▪Maintenance and servicing
▪Storage and disposal
This component documentation is intended for anyone who requires the following infor-
mation concerning the product:
▪Intended use
▪Device models
▪Technical specifications
▪How it works
▪Maintenance manual
▪Spare parts drawings and spare parts lists
Honeywell offers products with identical functions in a number of different sizes. For this
reason, we are unable to guarantee that the illustrations in this documentation will match the
dimensions of your product. In these cases, the illustrations should be viewed as a concept
sketch.
Failing to observe the information provided in this document may lead to injuries, including
death and material damages.
To ensure the safety, any persons handling the product must have read and understood the
following parts of this document before they start with any work involving it:
▪the chapter entitled Safety
▪the chapters that describe the work to be done
Unless explicitly permitted, the disclosure as well as duplication of this document, the exploi-
tation and communication of its contents are prohibited. Any breach or infringement will
result in liability for damages. All rights reserved in the event of patent, utility model or
registered design registration.
Contents
Validity and purpose
Target group
Illustration
Safety
Copyright notice

General considerations
HON 670 / HON 671 Controllers Component Documentation 4
© Copyright 2021 by
Honeywell Process Solutions
Honeywell Gas Technologies GmbH
Osterholzstraße 45
34123 Kassel
GERMANY
Tel: [phone]
Phone number for service: [phone]
Fax: [phone]
Fax number for service: [phone]
E-mail: [e-mail]
Website:
www.honeywellprocess.com
www.hongastec.de
Printed in Germany
The manufacturer will not be liable for damages and malfunctions arising from failure to
observe this component documentation and other applicable documents.
The written approval from Honeywell Gas Technologies GmbH, Kassel, is required for any
modifications and additions to the product. Any violation will void the legal liability for con-
sequences arising thereof.
Copyright
Details about the manu-
facturer’s liability
Constructive changes

General considerations
HON 670 / HON 671 Controllers Component Documentation 5
1.2 About the safety notices
The information contained in the safety notices is intended to prevent personal injury. Safety
notices contain the following information:
▪Nature and source of the danger
▪Possible consequences associated with the non-observance of the notice
▪Procedures for the prevention of personal injury
This document contains the following types of safety notices:
Type of safety notice
Description
Sign
Basic safety notices
Superordinate safety notices not relating to a
specific task:
▪They contain a summarized description of
hazards, risks and safety procedures associ-
ated with the handling of the device.
▪Their purpose is to inform and educate the
user about an existing danger and about
practicing behavioral safety.
▪They are suitable as safety instruction for all
employees handling the device.
Recognizable by the heading
of the chapter
Instruction-related
safety notices
Safety notices containing specific instructions
relating to the entire manual or a group of
manuals
Step-related safety
notices
Safety notices containing specific instructions
relating only to the step
DANGER
WARNING
CAUTION
Additional safety
notice
Instruction to observe certain safety notices
with reference to a location in the document
where safety notices containing specific
information about dangers, risks and specific
instructions for safety procedures can be found
The safety notices containing specific instructions are identified with a signal word. The signal
word represents a certain danger level:
Danger level
If you fail to follow the instruction, then …
And the consequence is …
DANGER
an accident will happen
serious bodily injury or
death.
WARNING
an accident may happen
possible serious bodily
injury or death.
CAUTION
an accident may or will happen.
minor or moderate bodily
injury.
Warnings about possible material damages are identified with the word Attention in this
document.
Meaning
Types of safety notices
Danger levels
Warnings about material
damages

Description
HON 670 / HON 671 Controllers Component Documentation 6
2Description
Topic Page
Intended use 6
Device models 7
Labels/Markings 7
Physical design and operation 9
Technical specifications 13
2.1 Intended use
The controllers HON 670 / HON 671 are used to trigger safety equipment within a controlled
gas system.
The controllers can be used for neutral, non-aggressive gases and the gases specified in
DVWG Code of Practice G260.
Note: The device’s operating limits concerning the gas, the operating pressure, and the
operating temperature can be found either on the rating plate affixed to the device or in the
device’s technical specifications.
The use under different operating conditions must be coordinated in consultation with the
manufacturer.
The controllers HON670 / HON671, which conform to DIN EN 334 / DIN EN 14382, are in-
tended to be used for the following gas pressure regulators:
▪HON 372
▪HON 402
▪HON 408
▪HON 503
▪HON 512
▪HON 530
▪HON 703
▪HON 704
▪HON 711
▪HON 721
▪HON 5020
Please observe the following limitations of use:
▪Do not use the device for any media other than those mentioned in the intended use or
those discussed with and approved by the manufacturer.
▪Do not use the device in any installation position other than the one documented in
this component documentation.
▪Do not use the device against the direction of flow specified on the device and in the
component documentation.
▪When replacing defective parts, only use original spare parts or manufacturer-approved
standard parts.
▪Do not attempt to modify or remodel the device on your own.
Contents
Intended use
Limitations of use

Description
HON 670 / HON 671 Controllers Component Documentation 7
2.2 Device models
The configuration levels of the controllers HON 670 / HON 671 can be varied in some respects
using individual components.
The following individual components are always part of the device:
▪Spring adjuster of the pilot spring
▪Amplifying valve
▪Comparator stage
▪Base plate
▪Pressure unit
The following individual components are installed in some versions of the device:
▪Comparator stage
▪Diaphragm measuring unit
▪Diaphragm assembly with ball guide sleeve
▪Metal bellows measuring unit
The comparator stage as an individual component is executed in three models with different
designs in dependence on the control range (Wd) of the controller:
Series
Designfor upper response pres-
sure
Control range Wdso
Thread type
[bar]
[psi]
K16: Diaphragm measuring unit
0.8 - 20
11.6 - 290
HON 670
K16: Diaphragm assembly with ball
guide sleeve
10 - 40
145 - 580
Metric, imperial
K18: Metal bellows measuring unit
20 - 90
290 - 1305
Series
Design for lower response pres-
sure
Control range Wdsu
Thread type
[bar]
[psi]
K17: Diaphragm measuring unit
2.0 - 20
29 - 290
HON 671
K17: Diaphragm assembly with ball
guide sleeve
10 - 40
145 - 580
Metric
K19: Metal bellows measuring unit
20 - 90
290 - 1305
The designs that use the imperial system of measurement feature ports that conform to
Anglo-American thread standards and use inches as a unit.
The designs that use the metric system of measurement feature ports that conform to Euro-
pean thread standards and use metric units.
The technical specifications and the spare parts lists and spare parts drawings in the appendix
describe all the models of the HON 670 / HON 671 controllers.
The Maintenance section describes the controller using the example of the models with a
diaphragm measuring unit and a metal bellows measuring unit. It does not explicitly describe
every single version and design.
If you have trouble understanding the information in this documentation, contact the manu-
facturer without fail before starting any work on the device.
2.3 Labels/Markings
Variants of the controllers
HON 670 / HON 671
Controllers HON 670 /
HON 671 models
Versions and designs in
this component docu-
mentation
Illegible labels

Description
HON 670 / HON 671 Controllers Component Documentation 8
Illegible information on the device poses a risk of injury due to resulting erroneous opera-
tion, use, or installation.
Labels, as well as inscriptions and stamping on the device, can eventually become soiled or
otherwise unrecognizable to such an extent that users will not be warned effectively of
hazards and may be unable to follow required operating instructions. This will pose a risk of
injury.
Make sure to always keep all relevant labels in good condition so that they will be easily
legible.
Immediately replace damaged and missing labels.
Make sure you have the right component documentation for your device.
To identify your device, look at the nameplate.
Make sure that the conditions on site correlate with the information on the type plate and
the technical specifications.
Technical specifications
The monitoring device type plate locations are as follows:
Figure
No.
Description
1
Type plate onthe side of the monitoring
device
2
Additional type plate on the side of the
monitoring device
The details on the type plate have the following meaning:
Figure
No.
Description
1
Manufacturer ID
2
Manufacturer’s address
3
Type designation
4
Serial number
5
PS = Maximum allowable pressure
Identifying the device
Verifying the technical
specifications
Locating the monitoring
device’s type plates
Interpreting the type
plate on the monitoring
device

Description
HON 670 / HON 671 Controllers Component Documentation 9
The details on the additional type plate mean the following:
Figure
No.
Description
1
Specific adjustment range [bar]
Wdso = Excess pressure
2
Specific adjustment range [bar]
Wdso = Insufficient pressure
3
Setpoint to be set [bar]
pdso = Upper response pressure value
4
Setpoint to be set [bar]; see configuration
pdsu = Lower response pressure value
Small color-coded text labels must be used to mark the controller’s connection lines based on
what the lines are used for.
2.4 Physical design and operation
The controller is made up of the following individual components:
Figure
No.
Description
1
Spring adjuster
2
Pilot spring
3
Comparator stage with diaphragm meas-
uring unit
4
Amplifying valve
5
Base plate
Interpreting the addi-
tional type plate on the
monitoring device
Labels on connection
lines
Physical design of the
controllers K16 / K17

Description
HON 670 / HON 671 Controllers Component Documentation 10
The controller is made up of the following individual components:
Figure
No.
Description
1
Spring adjuster
2
Pilot spring
3
Ball guide sleeve
4
Comparator stage with diaphragm meas-
uring unit with ball guide sleeve
5
Amplifying valve
6
Base plate
The controller is made up of the following individual components:
Figure
No.
Description
1
Spring adjuster
2
Pilot spring
3
Ball guide sleeve
4
Amplifying valve
5
Comparator stage with metal bellows
measuring unit
6
Base plate
Physical design of the
controllers K16 / K17 with
ball guide sleeve
Physical design of the
controllers K18 / K19