Xylem MM 284D Series PSE-800 Probe Type Low Water Cut-Off for Steam Boilers - Manual (Page 3)

A
D
a. Based on the following criteria locate a suitable position for the probe:
b. Sparingly, apply pipe sealant to the ext
threads (D) of the (A).
For all Applications:
1. Refer to boiler manufacturers instructions to
determine suitable tapping for the probe.
2. Make sure probe is installed above minimum
safe water line as determined by the boiler
manufacturer.
3. Make sure that ends and sides of the probe
are at least 1/4” (6.4mm) from all internal
metal surfaces.
4. sure the probe is positioned to shut off
the boiler before the water level falls below
the lowest visible part of the gauge
STEP 1 - Locating and Installing the Probe
3
c. Using a wrench, tighten the probe (A) into the
tapped connection (E) that was determined in Step
1 of these instructions. Tighten to 47 ft•lb (64 N•m).
NOTE: Be sure to align the probe so that the
mounting screws (F) are in a horizontal position.
IMPORTANT: Do not use tape. Only use
pipe sealant.
Probe
Control
Minimum Safe
Water Level
(May vary
by boiler
manufacturer)
Steam
Boiler
INSTALLATION
TOOLS NEEDED:
One (1) flathead screwdriver, and one (1) pipe wrench.
For Remote Installations a level and power drill will be required.
STEP 2 - Installing Control Box
G
a. Using a flathead screwdriver, loosen the two (2) screws
that secure the cover (G) to the control about 1-1/2
turns and remove cover.
probe
ernal
Make
glass.
04&%
E
A
F
A
1/4"
(6mm)
1/4"
(6mm)
3
1
4