Control System Adjustment - Sullair LS-25S Operator's Manual And Parts List

Section 6
MAINTENANCE
8. Reinsert the separator elements with gaskets at-
tached into the sump taking care not to dent it
against the tank opening. DO NOT remove
grounding staples.
9. Clean the underside of the separator tank cover
and remove any rust. DO NOT remove the sta-
ples from the gaskets.
10. Replace the
capscrews. Torque to 200 ft.---lbs. (271 Nm).
11. Reconnect all piping making sure return line
tubes extend to the bottom or !@ 4 in./6mm above
the bottom of the separator element. This will
assure proper fluid return flow to the compres-
sor.
12. Check the return line strainer before restarting
the compressor (order replacement kit number
241772 if required).

CONTROL SYSTEM ADJUSTMENT

Refer to Figure 6 ---
sor, but with power applied, press the PROG pad
on the Supervisor panel three times to enter the
PROGRAMMING mode. Continue pressing the
PROG pad until "MAX PRESS P2A" is displayed.
Use the cursor (UP arrow) pad to set the desired
Figure 6 ---4 Sullicon Control (P/N 011682 ---003)
* Repair Kit P/N 250020---353
30
cover plate, washers
4. Before starting the c ompres -
Figure 6 ---5 Standard Thermal Valve
(P/N 041299)
24KT Thermal Valve
(P/N 02250043 ---433)
and
* Repair Kit P/N 001084 --- Standard
* Repair Kit P/N 001149 --- 24KT
UNLOAD pressure (110 psig [7.6 bar]). Note that
pressing the pad for over 2 seconds will initiate fast
scrolling of the value being set.
Once the correct value is selected, press the PROG
pad to proceed to the display "PRES DIF P2A". This
value is used to set the LOAD pressure where the
compressor will begin building pressure (10 psid
[0.7 bar]). This will provide LOAD/UNLOAD opera-
tion at 100 to 110 psig [6.7 to 7.6 bar]). These val-
ues will be entered when the display is returned to
operating mode condition by continuing to press
PROG through the end of the PROGRAMMING
menu or allowing the display to automatically re-
turn to operating mode status after 5 seconds of in-
activity. While scrolling with the PROG pad, all exist-
ing user programmable values will be displayed.
FOR DIFFERENTIAL PRESSURE REGULATOR
ADJUSTMENT:
The differential pressure regulators are adjusted by
loosening the adjusting screw on the end of the
cone shaped cover of the pressure regulator (refer