15
If your relief valve does not have flow-through port, you
must add a “T” fitting.
NOTE: To assure a good connection
and avoid corrosion, coat electrical connections with
silicone grease.
The relief valve connection can be used to relieve system
pressure when section valves are turned off. When all the
sections are turned off, or when HOLD is selected with
the master switch, +12VDC is energized at the relief valve
connection and the relief valve opens. Use Illustration on the
right as your pattern for proper installation if your relief valve
has a flow-through port. DO NOT install the relief valve closer
than 12” to the flowmeter.
Electrical connection:
Locate the end of the violet wire under the heat shrink on the
14320 cable. See
Illustration 10
below. Pull the violet wire out
of the wrap, crimp on a connector, and connect this lead to the
relief valve positive terminal. Connect the other terminal on the
relief valve to ground.
“T” Fitting
Servo
Valve
Relief
Solenoid
Installation (cont.)
Electric Relief Valve
Care & Maintenance of your MT-3405F
TM
II Console
Store the console in a cool dry location if it will not be used for an extended period of time, such as during the off-season.
As with any electronic equipment, use care in cleaning so that water or other liquids do not enter the case.
Thoroughly rinse Flowmeter with clean water, install plastic shipping plugs and keep from freezing.
PRECAUTIONS
•
Do not exceed rated input pressures on flowmeters or other system components.
•
Avoid excessive liquid temperatures - some components could be damaged by liquid temperatures exceeding 130
°
F (55
°
C).
•
Some chemicals could damage certain non-metallic or nylon parts, depending on your system. If you are in doubt,
contact the chemical manufacturer.
14320 Cable
Violet wire
Illustration 10
