©Copyright Task Force Tips LLC 2014-2019
LIA-208 August 12, 2019 Rev04
15
Valve Seat Bore
Size
Max Acceptable
Torque
Max. Acceptable
Force on Knob
5.25 in
133 mm
30 ft-lb
41 N-m
137 lb
62 kg
Exceeding 45 ft-lb will cause one side of the crank shaft to shear off . This is intentional to prevent further damage to the gearbox. If
the shaft shears off , the valve can be operated temporarily using a wrench on the ½” hex on the opposite side of the crankshaft. For
repair instructions, see section 9.2 CRANKSHAFT OVERRIDE AND REPLACEMENT.
5.3 BALL INTAKE VALVE RC OPERATION
POWER
LED
POSITION
INDICATOR
CONTROL BUTTONS
Figure 5.3
RC Operation
Power LED:
LED will be solid green when power is present
Position Indicator:
5 LEDs indicate valve position. One for full close (red at far right), one for full open
(green at far left), three yellow for 25%, 50%, and 75% open. Two LEDs will light
when position is between two percentages.
Note: The position indicator will lose position if the manual override is used while
the power is off . Position location is restored after the fi rst cycle of electric operation.
All 5 position LED’s blinking indicates a fault with the motors encoder.
Control Buttons:
Manual Mode
When OPEN or CLOSE button is pressed, valve opens or closes until button is
released.
Automatic Mode
When OPEN or CLOSE button is momentarily pressed, valve opens or closes fully.
During valve movement if STOP or the other direction is momentarily pressed the
motor will stop.
Changing Modes (Unit is shipped from factory in the Auto Mode)
Press CLOSE and STOP buttons together and hold for 3 seconds to change to
Automatic Mode.
Press OPEN and STOP buttons together and hold for 3 seconds to change to manual
mode.
5.4 AIR VENT AND WATER DRAIN
CAUTION
Loss of prime can interrupt water fl ow and cause injury or death. Always bleed out air with air
valve to prevent possible loss of prime.
The BIV-LP comes with an Air Vent/Drain Valve situated on the front of the valve. There is a second plugged port on the top of the
valve. To use a diff erent port position, relocate the factory supplied Air Vent/Drain Valve or install an additional Air Vent/Drain Valve.
If the Air Vent/Drain Valve is being relocated, use a ¾” NPT plug to seal the empty port.
5.5 PRESSURE RELIEF VALVE
WARNING
Do not leave the pressure relief valve in the OFF position. The pressure relief valve is disabled in
the OFF position and off ers no protection against over pressurization. The OFF position may be
used for controlled pump testing but should not be used for service conditions. Exercise great
care to avoid water hammer or other pressure spikes when the pressure relief valve is in the OFF
position.
WARNING
The Pressure Relief Valve may be damaged if frozen while containing signifi cant amounts of
water. Such damage may to diffi
cult to detect visually and can lead to possible injury or death.
Any time the Pressure Relief Valve is subject to possible damage due to freezing, it must be
hydrostatically tested by qualifi ed personnel before being considered safe for use.
LDH valved appliances may be equipped with a pressure relief valve that can be set to any pressure between 90 and 300 psi. Its
function is to protect the pump and supply hose from excess pressure. An optional threaded outlet (TFT #A1114) is available for
connecting a hose to discharge opening to direct water away from valve. Consult factory for thread options.
See
LIA-202
Pressure Relief Valve Instructions for Safe Operation and Maintenance.
