Liquid Controls Optical Air Eliminator US Patent 7000628 Refined Fuels Applications A8981 & A8981A - Manual (Page 6)

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Installation
Retrofit Installations
Depending on the existing configuration, adding an optical
air eliminator valve may require modification of the vent
piping, modification or change of the outlet valve, and
modification or change of the register.
The optical air eliminator requires the following compo-
nents to operate:
• LectroCount LCR/LCR-II Electronic Register with
internal CPU board Part Number 81920 or LC³ with
CPU board Part Number 81924.
• Electronically-controlled outlet valve such as the
A2982-11 or A2848-11.
Refer to the manuals accompanying these items for proper
installation and configuration.
! WARNING
Before disassembly of any meter or accessory component, ALL INTERNAL PRESSURES MUST BE RELIEVED
AND ALL LIQUID DRAINED FROM THE SYSTEM IN ACCORDANCE WITH ALL APPLICABLE PROCEDURES.
Pressure must be 0 (zero) psi. Close all liquid and vapor lines between the meter and liquid source.
Failure to follow this warning could result in property damage, personal injury, or death from fire and/or explosion, or
other hazards that may be associated with this type of equipment.
New Installations
When ordered with a new meter, the optical air elimina-
tor is supplied mounted atop a strainer on the inlet side
of the meter. An example is the meter with high-capacity
strainer, two-stage valve, and LectroCount LCR-II ® Elec-
tronic Register shown in the figure to the right.
A vent line must be connected from the output port of the
optical air eliminator. This connection is ½” NPT. The vent
line must be connected to an appropriate receptacle such
as an overflow tank on a truck.
The optical air eliminator solenoid valve and optical sen-
sor are supplied pre-wired to the LectroCount Electronic
Register.
½" NPT Port
Figure 7: New Assembly