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HE 1.5 Progressive Flow Systems
HE 1.5 filters may be set up to use either INTERNALLY or EXTERNALLY blocked progressive flow.
NOTE
Single HE 1.5" Filters bypass the flow of raw water through the tank during a regeneration. This means
untreated water would be flowing to service during the regeneration unless an external blocking
system is installed. Follow the instructions in this section for the external blocking diaphragm and
solenoid to prevent any bypass flow during a regeneration. Progressive flow systems already have a
no hard water bypass setup so no adjustments are necessary. A single progressive flow system can be
used on a single tank system and provide non-hardwater bypass during regeneration.
Internally Blocked Progressive Flow
In an internally blocked progressive flow system, no blocking solenoids and no blocking diaphragm valves are required.
Instead, these systems use special progressive flow control valves which are capable of internally blocking the flow of wa-
ter when the unit is in regeneration or in standby. The progressive flow control is identical to a standard downflow control,
except that it has a special progressive flow gearbox instead of a standard downflow gearbox, and the valve has an added
flow connector installed as shown in
HE 1.5 Progressive Flow Filters. For example, to build an internally blocked triplex progressive flow system you would
order three HE-060-PF filters and then connect these three systems together with two communications cables.
The programming setup for internal and external progressive flow is identical and is explained in the GBE Programming
for Commercial Softeners and Filters, except HF xN (P/N 01027295).
Internally blocked progressive flow is easier to install and maintain and has a lower total hardware cost compared to
externally blocked progressive flow. Culligan recommends that all HE 1.5 progressive flow systems be set up as internally
blocked systems. The only time when it is advantageous to use HE1.5 externally blocked progressive flow is:
a.
If the progressive flow system must use Upflow regeneration, then you must use externally blocked
progressive flow.
b.
If you are building a progressive flow system using non-progressive flow controllers, it may be easier to
use externally blocked progressive flow instead of purchasing and installing the conversion kits.
c.
HE 1.5 filters manufactured prior to November 2011 are not able to accept the connector tubing shown
in
Figure
Externally Blocked Progressive Flow
In externally blocked systems, wire a solenoid valve to the AUX 4 output of each filter as shown in
29
and use this solenoid valve to control a diaphragm blocking valve as shown in
nally blocked progressive flow, order standard HE 1.5" single filters. To build an externally blocked triplex progressive flow
system, order three HE-060 filters and then order two communication cables to connect the three softeners together.
Blocking Solenoid Valve For External Blocking Multi-tank Operation
NOTE
The solenoid valve is required only for multiple unit alternating or progressive flow systems.
Multi-Tank systems use communication cables (P/N 01024363). A Duplex system will
need 2 communication cables and a Triplex system will need 3 communication cables.
The communication cable should be used with the diaphragm valves of your choice,
such as the 1.5" plastic diaphragm valve (P/N 00445981).
Figure 31
illustrates the sequence of operation. Each valve in the system will require its
own solenoid valve and blocking valve. These solenoids are tubed as follows:
• From solenoid valve port number 1 to blocking valve port in head.
• From solenoid valve port number 2 teed into a pressurized source of water from
feed line.
• From solenoid valve port number 3 to a drain.
Cat. No. 01024514
Figure
33. In order to use internally blocked progressive flow, it is necessary to order
33. These systems cannot use internally blocked progressive flow.
Installing Accessories
Figure 35 on page
Figure 8 on page
13. To use exter-
Figure 29.
Installing Accessories
Solenoid Valve.
25
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