©Copyright Task Force Tips LLC 2021
11
LIY-350 January 13, 2021 Rev00
4.5 NOZZLE INSTALLATION
Screw the nozzle onto the monitor’s exit threads.
4.6 PRESSURE GAUGE PORT
There is a ¼” NPT female threaded hole on the back of the monitor and the exit elbow
. The holes are plugged from the
factory. If a pressure gauge is desired, unscrew the plug and install the gage using pipe sealant. Make sure the gauge does not interfere
with operation.
4.7 AUTOMATIC DRAIN
An automatic drain is included to empty water from a low point in the monitor piping to prevent
freezing and help empty hose lines. The valve is designed to close automatically when pressure in
the monitor exceeds approximately 5 psi, and open again when the pressure drops to that point.
The automatic drain may be disabled if not desired for your application.
To disable the drain valve:
1. Unscrew the drain assembly and remove the screw and washer.
2. Flip over the rubber drain valve so the raised edge is against the face of the housing.
Reassemble the screw and washer and reinstall the drain valve assembly.
CAUTION
Mismatched or damaged waterway connections may cause equipment to leak or uncouple under
pressure. Failure could result in injury. Equipment must be mated to matched connections.
CAUTION
Dissimilar metals coupled together can cause galvanic corrosion that can result in the inability to
uncouple the connection, or complete loss of engagement over time. Failure could cause injury. Per
NFPA 1962, if dissimilar metals are left coupled together, an anti-corrosive lubricant should be
applied to the connection and the coupling should be disconnected and inspected at least
quarterly.
WARNING
Monitors, valves, and piping may be damaged if frozen while containing sufficient amounts of
water. Such damage may be difficult to detect visually and can lead to possible damage, injury, or
death. Equipment that may be exposed to freezing conditions must be drained immediately
following use to prevent damage.
CAUTION
Structural damage from corrosion can result from failure to drain appliance between uses. Damage
from corrosion can cause injury due to equipment failure. Always drain appliance between uses.
Figure 4.7
Flip this part
over to disable
the drain valve.
