IBC Water AST1041TC-CL, Инструкция по установке и эксплуатации

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AS1041TC-CL Page
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The PC board powers the motor. The PC board’s two-
prong jack connects wires to the direct current (DC)
motor. The motor is held in place on the drive bracket
by a spring-loaded clip and a small bulge in the
plastic, which fits in one of the slots on the motor
housing. The motor turns drive gears that drive the
piston to cycle positions for backwashing,
regeneration, rinsing, refill or service. The motor is
fully reversible (turns both ways) and changes
direction of rotation to change the direction of piston
motion. The motor is easily replaced if necessary.
There are three drive gears held in place by the drive
gear cover. All three drive gears are the same size. A
reflective coating is applied to the gears. As the
centre drive gear turns a light shines on the coating
and a light sensing diode determines if a light pulse
was returned. The PC board counts the pulses and
determines when to stop driving the motor.
Drive Cap Assembly, Main Piston
and Regenerant Piston
The drive gears turn the main gear of the drive cap
assembly, which moves the piston. The screw-driven,
horizontally moving piston stops at specific positions
to direct the flow of water to backwash, regenerate,
rinse or refill. The PC board determines the position
of the piston by counting pulses produced when the
piston is moved. An optical sensor looking at one of
the reduction drive gears generates these pulses.
Each cycle position is defined by a number of pulses.
The counter is zeroed each time the valve goes to the
service position. The PC board finds the service
position by noting the increase in current delivered to
the motor when the mechanical stop at the service
position is reached. This method of controlling the
piston position allows for greater flexibility and
requires no switches or cams (U.S. Patent 6,444,127).
Spacer Stack Assembly
The spacer stack assembly provides the necessary
flow passage for water during the different cycles.
The all-plastic spacer stack assembly (U.S. Patent
6402944) is a one-piece design which allows the
stack to be removed using your fingers.
The exterior of the stack is sealed against the body
bore with self lubricating EPDM o-rings, while the
interior surface is sealed against the piston using
slippery self cleaning silicone lip seals. The lip seals
are clear in colour and have a special slippery coating
so that the piston does not need to be lubricated.
Injector Cap, Screen, Injector Plug
and Injector
The screen, injector and/or injector plug(s) are
installed under the injector cap in an easy to access
location on top of the valve. The injector cap contains
four slots so no water accumulates in the cap. The
injector cap is designed to be hand tightened.
Under the injector cap there is an easy to clean
removable screen to prevent fouling of the injector.
There are two holes under the injector cap labelled
“DN” and “UP”. The injector is in the “DN” hole and
the “Up” hole is plugged.
The injector lets water pass through the pathway. The
self-priming injector increases the velocity of the
water, creating a zone of negative pressure that
draws in the concentrated liquid regenerant sodium
chloride (brine). The regenerant blends with the
stream of water which passes through the media to
regenerate the resin bed.
The injector provides a consistent regenerant/water
mixture ratio over the entire operating pressure range
of the control valve. The injector provides good
performance in a variety of applications. The injector
fitted has been used to suit a wide range of operating
pressures. But requires a minimum of 330 kpa to
function correctly.
Injector Order Information
Injector order
number
Injector
colour
Typical tank
Diameter*
V3010-1B Brown 7”
V3010-1D Red 9”
*V3010-1E/F White/Blue 10”
V3010-1G Yellow 12”
V3010-1I Orange 13”
V3010-1K Light Green 14”
* May vary with Tank Resin Volume Check with
Factory
Refill Flow Control Assembly or
Refill Port Plug
The refill flow control assembly consists of a refill flow
elbow, refill flow control retainer assembly, refill flow
control, polytube insert and nut assembly. The refill
flow control retainer fits in the refill elbow. The refill
flow control retainer houses the refill flow control
which controls the flow rate when the regenerant tank
is being refilled. The refill flow control is a flexible
washer-like part with a small orifice and a precision
moulded contour that delivers a steady 1.91pm (0.5
gpm) regenerant tank refill rate at varying inlet
pressures. Refill is accomplished with treated water.