B24-1B10-CKP datasheet(21/36 Pages) MAGNETROL

21 / 36 page

46-630 Boiler External Cage Liquid Level Switches

2. Check the chamber mounting within 3° of vertical after

the boiler installation.

3. Raise level in the vessel sufficient to raise the float and trip

the switch. Lower level in the vessel sufficient to lower

float and reset the switch. Confirm switch trips and resets

at expected levels (contact Magnetrol for specific informa-

tion on trip points; please have the serial number of the

unit readily available).

4.2

What to do — every 12 months (minimum)

4.2.1 Switch Corrosion Inspection

For every 12 months in service, conduct the following

maintenance and inspection checks in addition to cus-

tomer specific or code requirements.

NOTE: For applications where the switches are exposed to corrosive

environments this inspection should be conducted every 3

months.

1. Disconnect power to the switch.

2. Remove switch housing cover to inspect switch mecha-

nisms for visible signs of corrosion on terminals and wires.

NOTE: If cover is difficult to remove, secure base to prevent it from

moving while loosening it. Loosen set screws securing the

base to the enclosing tube prior to using a cross-bar or ham-

mer to loosen cover. Loosening the set screws will prevent

the enclosing tube from loosening resulting in possible leaks.

3. Switches should be inspected for excessive wear on actuat-

ing lever or misalignment of adjustment screw at point of

contact between screw and lever. Such wear can cause false

switch actuating levels. Adjust switch mechanism to

compensate (if possible) or replace switch.

B24-1B10-CKP Datasheet(PDF) 21 Page - Magnetrol International, Inc.