2- Relief Valve; 3- Regulator(S); 4- Gas Control Module - Honeywell HON COCON 13 Operator's Manual

15 Relatch the ssd controller (take note of the minimal relatching differential) by first backing out the adjust
screw of the regulator pilot and then decreasing the downstream pressure by opening & closing the purge
valve. Equalize pressure over the closing member by using the built‐in bypass (push the reset‐button as
previously described) Finally relatch the SSV by pushing the button all the way to its stop (push twice)
16 Re‐check the upper trip pressure and fine‐adjust if necessary by repeating actions 13 to 15
Note: re‐latch the ssd controller each time at approximately the same set pressure
4.3.2.2 – Relief Valve (optional)
Start at 4.3.2.1 (first time only)
1 Check if the discharge line of the relief valve has been provided with an
open indicator
2 Increase the downstream pressure to the desired set point of the relief valve
2a if necessary decrease initially the downstream pressure by opening & closing the purge valve
2b by advancing the adjust screw (CW) of the regulator pilot (do not open the hand relief)
3 Slowly decrease the opening pressure spring tension
3a by backing out the adjust screw (CCW) of the relief valve
3b until the relief valve opens (use an indicator)
4 Close the relief valve (mind the minimum closing difference)
4a by first backing out the adjust screw of the regulator pilot
4b decrease the downstream pressure by opening & closing the purge valve
5 Check the discharge line for lockup
6 Check the opening pressure and fine‐adjust if necessary
6a by repeating action 2 u/i 4
If applicable remove the opening indicator & restore any changes made to the tubing
4.3.2.3 – Active and Monitor Regulator
Start at 4.3.2.1 (first time only)
1 Decrease the downstream pressure to just below the set point of the regulator. This can be done by opening
& closing the hand relief valve.(purge)
1a Then advance the adjusting screw (CW) of the regulator pilot (do not open the purge valve) until the set
point of the regulator is reached.
2 Check the downstream pressure for lockup.
4.3.2.4 – Gas Control Module
1 Check the atmospheric upper chamber for leakages with a leak detector before commissioning.
Operators manual underground gas pressure reducing station
Operators manual
© 2017 Honeywell International Inc.
Type: HON COCON 13
Page 24