CONTROL UNIT MOUNTED ON PROBE
FIG. 3
LWCO
FIG. 4
1. Be sure the probe is installed above the
minimum safe
water
level, as previously determined from the boiler manufacturer’s
literature.
2. Be sure the probe extends into the boiler cavity or piping so that
contact with the water is made. Do not install in locations where
air can be trapped.
3. Be sure the exposed portion of the stainless steel probe is a
minimum
of 1/4” from any grounding surface inside the boiler
to prevent the probe from shorting (see Fig 1).
INSTALLATION
IMPORTANT NOTES FOR PROBE INSTALLATION:
Control Unit Mounting onto Probe (See Fig. 3):
1. Tighten the probe into the tapped location of the boiler with a
wrench, using the bushing flats provided.
2. Make sure the heads of the two mounting screws in the probe
bushing are loosened approximately 1/8” from the bushing
surface.
3. Then remove the first lock washer/nut from the probe threads.
4. Orient the slotted holes in the control unit over the heads of the
mounting screws of the probe and turn control unit counter-
clockwise so that the ends of the slots are fully under the mounting
screw heads. Tighten mounting screws.
5. Replace the probe locknut onto the electrode threads and tighten.
Only use pipe thread sealant for sealing probe threads. Do
not use Teflon tape. Use of Teflon tape can insulate probe
electrically and can cause improper device operation and
damage to equipment or property.
DWG# 3576-3
AMBER “SERVICE”
TEST BUTTON
BI-COLOR “STATUS”
GROUND SCREW
PROBE
TERMINAL BLOCK
FACTORY INSTALLED JUMPER
(REMOVE IF LWCO POWER
SOURCE IS DIFFERENT THAN
BURNER POWER SOURCE)
PROBE
LOCKNUT
DWG# 3576-2
MOUNTING
SCREWS
DWG# 3576-4
3/4 NPT FITTING
LWCO OUTLINE DRAWING
FIG. 5
