Commissioning Of The Hon Cocon - Honeywell HON COCON 13 Operator's Manual

4.4 – Commissioning of the HON Cocon
Start at 4.3.2.1(first time only)
1 Check if regulator & line pressures are set to the approximate set points. The
regulator should be preset slightly below the grid pressure.
2 Crack upstream & downstream block valves in the following order.
3 Gradually open the downstream isolation valve of the HON Cocon. A short
pressure peak could occur at this point. To avoid triggering of the slam shut
valve, depress and hold the reset button at this point until fully open.
4 Gradually open downstream block valve.
5 Gradually open upstream isolation valve of the HON Cocon.
6 Gradually open the upstream block valve.
7 Increase the regulator pilot spring tension by adjusting the screw inwards until the required set point is
reached in the outlet piping.
8 Fine tune the regulator if necessary.
Notes:
 Change pressure spring of pilot for next higher in range to increase damping if necessary.
 Install a flow restrictor in the motorization line of the pilot to increase damping further if required. (Check with
manufacturer for advise)
 To take the unit out of operation, close the upstream block valve first
 Do not forget to connect all data‐transmitting devices
 Clean and grease the seal/sealings surfaces before mounting the covers.
Operators manual underground gas pressure reducing station
Operators manual
© 2017 Honeywell International Inc.
Type: HON COCON 13
Page 25