Toro Aqua-Clear Fiberglass Sand Filters Installation and User's Guide
Aqua-Clear
Fiberglass Sand Filters
Addendum to the Installation & Users Guide
Automatic Backwash Filter Assembly
See Installatio n & U s er’s Guide for Import ant Safety
Instructions
System Contents ........................................................................................................................ 3
Overview .................................................................................................................................... 5
Assembly of the Automatic Backwash valves ............................................................................. 5
Hydraulic Control Filter Assembly .............................................................................................. 6
Manifold Assembly ..................................................................................................................... 7
Assembly of the Air Vents .......................................................................................................... 9
Connection of the Hydraulic Command Tubing .........................................................................10
Operation of the Automatic Filters .............................................................................................11
Programming the Automatic Backwash Controller ....................................................................12
Wiring the Controller .................................................................................................................16
Appendix 1: Manifold Construction Detail .................................................................................19
Aqua-Clear Automatic Backwash (ENG/SPA) pg. 2
Table 2
ACS-218-12VDCL ACS-224-12VDCL ACS-230-12VDCL ACS-236-12VDCL
ACS-218-24VAC ACS-224-24VAC ACS-230-24VAC ACS-236-24VAC
Aqua-Clear Automat ic Filter St
Qty 2 x 18" 2 x 24" 2 x 30" 2 x 36"
Filter Body 2 AC-40 AC-60 AC-100 AC-140
Aqua-Clear Hydraulic Kit 1
Backwash Controller - 12v DCL
Backwash Controller - 24v AC
Backwash Valve (12v DCL)
Backwash Valve (24v AC)
3" Fitting Kit
2
Operations Manual Addendum
1
System
Part
Numbers
ALT227
ALT227
2
either
AC or DC
B2x2350S551DSPBZVI
B3x3350S551DSPBZVI
B2x2350S554RCPBZVI
B3x3350S554RCPBZVI
n/a
ACK-3F
ACK-HYD1
ACK-HYD1
1
either
AC or DC
B-EXFP111002DP
B-EXFP111002DP
B-EXFP211002DP
B-EXFP211002DP
Table 1
ACX-118-12VDCL ACX-124-12VDCL ACX-130-12VDCL ACX-136-12VDCL
ACX-118-24VAC ACX-124-24VAC ACX-130-24VAC ACX-136-24VAC
Aqua-Clear - Expansion Filter
Qty 1 x 18" 1 x 24" 1 x 30" 1 x 36"
Filter Body 1 AC-40 AC-60 AC-100 AC-140
Bulkhead Adapters (2") 1
3" Fitting Kit
Air release valve 1
Tee, Plastic [8mm Compression] 1
8MM Hydraulic Tube - 10' Coil 1
Operations Manual 1
Backwash Valve (12v DCL)
Backwash Valve (24v AC)
Controller Expansion board (12v DCL)
Controller Expansion board (24v AC)
1
either
AC or DC
B-S-TG-0208
B-S-TG-0208
B-S-TG-0215
B-S-TG-0215
System
Part
Numbers
B-8MMHYD-10
B-8MMHYD-10
ALT227
ALT227
1
either
AC or DC
B2x2350S551DSPBZVI
B3x3350S551DSPBZVI
B2x2350S554RCPBZVI
B3x3350S554RCPBZVI
n/a
ACK-3F
ARV-BBK1
ARV-BBK1
B-FT98-T
B-FT98-T
AC-BHA-2
AC-BHA-2
Automatic Backwash Filter
Operating Manual Addendum
System Contents
Please check immediately to see that you have received all the parts for the system. For two
filter systems, reference Table 1. For one filter expansion systems, reference Table 2. Systems
may contain kits, the detailed contents of which appear in Table 3.
Aqua-Clear Automatic Backwash (ENG/SPA) pg. 3
Table 3
H ydraulic Kit Contains:
Description
Qty SKU
Pressure gauge (0-100 psi) 2 GPM0100
8MM Hydraulic Tube - 10' Coil 2 B-8MMHYD-10
3/4" disc filter 1 ALFD75150-L
Air release valve 2 ARV-BBK1
Reducing Bushing 1/4" x 1/8", Brass 2 28-102
Tee, Plastic [8mm Compression X 1/8" NPT] 1 B-FT98-1T
Elbow, Plastic [8mm Compression X 1/8" NPT] 1 B-FT28-EL
Tee, Plastic [8mm Compression] 1 B-FT98-T
Bulkhead Adapters (2") 2 AC-BHA2
3" Fitting Kit
Grooved Couplings (3") 3 B-DS-V2030
Grooved Nipples 3 VG03PE
Air V ent Cover Adapter 1 T-60403
The Aqua Clear Hydraulic Kit is
included with the Filter station; Part
numbers are provided here for
parts reference.
The Aqua Clear Hydraulic Kit is
included with the Filter station; Part
numbers are provided here for
parts reference.
System Contents (cont.)
Aqua-Clear Automatic Backwash (ENG/SPA) pg. 4
Overview
Construct the manifold system shown below, using only schedule 40 PVC pipe and fittings.
VERY IMPORTANT to always support the PVC manifolds or any long runs to prevent any
added stress on the filter bulkheads and glue joints. In general, use as short a length of PVC
pipe as practical, and do not add unnecessary fittings and elbows; this will prevent unnecessary
pressure losses and improve efficiency.
Figure 1
Assembly of the Automatic Backwash valves
1. The 3” backwash valve model has grooved fittings. The valve will need to be assembled
to PVC grooved adapters (included). Basic assembly instructions for grooved fittings
follow (See Figure 2):
• Use a light coating of non-petroleum based lubricant, and slide the rubber gasket all
the way onto the valve body.
Aqua-Clear Automatic Backwash (ENG/SPA) pg. 5
• Position the valve connection to the PVC
grooved adapter.
• Slide the gasket toward the PVC fitting so
that it equally straddles the grooved fitting on
the valve, and the grooved fitting on the
adapter.
• Clamp the Grooved fitting over the rubber
gasket, tightening the two bolts equally.
• Some flexibility of this joint when complete is
normal; it is one of the advantages of a
grooved fitting connection.
Hydraulic Control Filter Assembly
See Figure 3 for detail on construction of Hydraulic
Control Filter Assembly
Figure 2 Grooved Fitting Assembly
Figure 3 Hydraulic Control Filter Assembly
Aqua-Clear Automatic Backwash (ENG/SPA) pg. 6
Manifold Assembly
Be certain to allow sufficient clearance to allow the installation of all three manifolds (see Figure
4)
It is Very Important to support manifolds to prevent stresses to bulkhead fittings on filters.
Excessive stress can lead to failure of the filter.
A chart showing the basic recommended fittings and pipe lengths is in Table 4.
Figure 4 Manifold Clearance Recommendation
Aqua-Clear Automatic Backwash (ENG/SPA) pg. 7
Table 4 Parts toSource Locally
A detailed assembly diagram for these parts is in the appendix.
Aqua-Clear Automatic Backwash (ENG/SPA) pg. 8
Assembly of the Air Vents
See Figure 5.
For the 18” and 24” models, the air vent
is attached to the ¼” threaded nipple
which comes attached to the manual air
bleed assembly. The rest of the manual
air bleed assembly is not needed. This
¼” threaded nipple is then installed onto
the 6” closure on top of the filter.
For the 30” and 36” models, the air vent
adapter should first be installed on the
8” closure on top of the filter. The A ir
Vent can then be threaded onto this
adapter. Note: This fitting is reverse
thread, so to tighten, twist the nut
counterclockwise.
There is a plastic air relief tube (item #9
on the Replacement Parts diagram of
the Filter Manual) inside the filter
attached to the Lower Piping Assembly;
it has a small screen filter on the upper
end. This tube is not attached to any
part of the external Air Vent structure.
The tube with the screen filter should be
placed inside the dome of the top cover
during final assembly.
NOTE: For all threaded connections, be
certain to use adequate amount of
Teflon tape or paste to create a good
seal.
Aqua-Clear Automatic Backwash (ENG/SPA) pg. 9
Figure 5 Automatic Air Vent Installation
Figure 6
Connection of the Hydraulic Command Tubing
Figure 7 Hydraulic Command Tube Connections
Aqua-Clear Automatic Backwash (ENG/SPA) pg. 10
Hydraulic command tube serves two purposes in an automatic backwash system:
1. It communicates the pressure levels to the controller, which manages the backwash
2. It provides the pressure to open and close the backwash valves.
Follow the circuit diagram in
Figures 6,7 to connect the
Hydraulic Command Tubing.
The filter on the Hydraulic
Command assembly assures
that the water used to control
the valves is clean of debris.
This filter will become clogged
over time, and should be
cleaned. Closing the ball
valve upstream of the filter will
allow you to clean the filter
even when the system is in
operation. Cleaning this filter
should be a routine
maintenance check, and a
troubleshooting step any time
the backwash is not occurring
as it should.
Operation of the Automatic Filters
The top illustration in Figure 8
shows the filters operating in
“filtration” mode. The lower
illustration shows the water
flow when Filter #1 is in
“backwash” mode. After Filter
#1 has been backwashed, the
controller will backwash Filter
#2.
Figure 8 Filter Operation
Aqua-Clear Automatic Backwash (ENG/SPA) pg. 11
Figure 9 Enter
Key
Programming the Automatic Backwash Controller
General Information
The controller comes with its own manual which provides good detail. The information below is
abbreviated, and explains some terms found in the controller manual.
The general function of the backwash controller is to sense the need for the filters to be
backwashed, and to manage a backwash cycle in which each filt er is individually flushed.
As the filters become dirty and need to be flushed, the pressure loss through filters increases.
The controller senses the need for the filters to be backwashed by tracking the pressure of the
system both upstream, and downstream of the filters. The controller is physically connected by
hydraulic tube to a point upstream of the filters, and also downstream of the filters. This
difference in the upstream and downstream pressure is called the pressure differential
(sometimes abbreviated PD, or DP). The controller can be instructed to initiate a backwash
sequence when the PD hits a specified limit (typically 5-7 psi).
The controller will also initiate a backwash sequence after a specified period of time has
elapsed, whether the PD sensor has called for a backwash or not. This is typically operated as
a backup trigger to the PD actuation, in case of a sensor failure.
The controller also keeps track of the number of backwashes that have occurred between
resets, enabling the operator to evaluate the operation of the system over time.
Getting Started
There are two stages to programming. Steps 1-4 of this section assign values to commonly
manipulated settings: how long, when, and how frequently to backwash, as well as some
readouts from the controller on how many times the filter has backwashed.
Steps 5-13 of this section are sometimes referred to as ‘configuration’. You will be instructing
the controller what values to use for the various functions it can perform, and some information
about the system being controlled. Typically the system is configured once at the initial
assembly stage, however, it can be re-configured at any time.
Basic Program
To perform steps 1-4, briefly press the ENTER key. After entering the
desired value for a function, press the ENTER key to move to the
next function to be programmed. For each function, the + and – keys
will scroll through the available selections for that function. See the
steps which follow for explanation of function and typical settings.
Initial Configuration
After performing the Basic Program entry, press and hold the enter key for 3 seconds, and you
will enter the configuration stage, steps 5-13. . After entering the desired value for a function,
press the ENTER key to move to the next function to be programmed. For each function, the +
and – keys will scroll through the available selections for that function. See the steps which
follow for explanation of function and typical settings.
Aqua-Clear Automatic Backwash (ENG/SPA) pg. 12
Loading...