Kenco Engineering KPS - Manual

KENCO ENGINEERING COMPANY
P.O. BOX 470426 TULSA, OK 74147-0426
PHONE(918) 663-4406 FAX: (918) 663-4480
www.kenco-eng.com e-mail:[email protected]
INSTALLATION INSTRUCTIONS FOR MODEL KPS OIL LEVEL SWITCH
WITH ADAPTERS (INCLUDING HIGH PRESSURE MODELS)
Note: For fire safe oil level controllers (KPS-FS) see additional instructions in this work sheet covering installation of fire safe
valves.
PNEUMATIC SWITCH INSTALLATION:
•
Connect the supply line of air pressure to the ¼” pipe thread located at the top of the air valve (D)
Note: Acceptable air pressure range is 10 psi to 100 psi. Air pressure greater than 100 psi will prevent the switch from operating.
• The exhaust vent is located at the base of the air valve (E) and is 1/8” pipe thread.
Note: If an exhaust line is used to carry gas away from the pneumatic switch, this line must be short, undamaged and trap free.
COMMON PROBLEMS AND SOLUTIONS:
•
Leaking switch may be caused by dirt. Wash the assembly in solvent to remove any foreign material.
• The switch is not tripping. Check for excessive restriction from a long exhaust line, a damaged line or a line with moisture
traps, or excessive pressure from the supply line.
• The switch is not properly tripping. Check the pressure coming into the switch. The switch may need adjustment. See below:
PNEUMATIC SWITCH ADJUSTMENT: The switch is factory set at 60 psi with a trip point of 5/8” to ¾” oil drop.
•
Remove the controller from the housing.
• Connect the supply pressure to the pneumatic valve (D).
• With the switch float arm against the magnet, adjust screw (C) until there is no leakage from the pneumatic valve.
• To adjust for a higher or lower level release lock nut (A) and backing screw (B) out.
• For a lower level, turn screw (B) in and readjust screw (C).
Note: Screw (C) must be adjusted until there is no leakage from the valve with the float assembly resting against the magnet.
Figure 1- Pneumatic Switch Adjustment