Caution
!
Danger of damage to property and/
or the environment
Important additional information
Eye catcher         Used for:
Danger
!
Danger to life and limb
1.  General information
  All persons involved with the assembly, operation and/or maintenance of the HON 372 gas pressure regulator must read and 
understand all of the following documents:
  -   Technical product information 372.00 — this Honeywell document contains the technical data and dimensions of the 
equipment as well as instructions concerning construction and mode of operation.
  -  General operating manual for gas pressure regulators and safety devices– this Honeywell document contains information 
on assembly and operation as well as general information on troubleshooting.
  -   Operating and maintenance instructions/spare parts 372.20 – this Honeywell document contains more detailed information 
on assembly and operation of the gas pressure regulator. 
  There are national laws and regulations for all sorts of jobs on gas pressure governors, from planning to maintenance. Be sure to 
comply. (In Germany, for instance, DVGW work sheets G 600, G 459/II, G 491 and G 495.)
  Inspection and maintenance intervals depend mostly on operating conditions and the nature and properties of the gas. There 
are no general rules or recommendations for intervals. For Germany, we recommend to consider maintenance intervals as 
stated in DVGW work sheet G 495 in a rst instance. However, in the mid-term, intervals must be adapted to the requirements of 
each specic equipment.
  During maintenance, components must be cleaned and then checked thoroughly. This is necessary even if there have not been 
any unusual observations during operation and/or functional testing. Checks must focus, in particular, on diaphragms and seals 
and all movable parts and their respective bearings. Any and all defective parts must be replaced with new ones. The same 
applies to 
O rings removed during disassembly.
  Do not use any spare/wear parts and/or oils & lubricants not specically recommended in the Honeywell operating and 
maintenance instructions for spare parts.
  In the event spare/wear parts and/or lubricants & oils other than those specically recommended are used, Honeywell shall not 
be liable for any defects and/or consecutive damages attributable to such use of illegal parts, lubricants, oils etc.
  Item numbers mentioned in the specic operating and maintenance instructions correspond with the numbers in the spare 
parts lists and drawings.
  Some parts in the lists and drawings are marked with a letter "W". We recommend to always have a reserve of those parts in 
stock for maintenance purposes. Those spare parts are put together in another separate list at the end of the spare parts list.
1.1  Safety information
  In this manual, safety information is highlighted by means of the following titles and eye catchers: