Hydrotech SL948-10-5600 Residential Scaleless System - Manual (Page 4)

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Installation Instructions
All government codes and regulations governing the installation of these devices must be observed.
CAUTION: If the ground from the electrical panel or breaker box to the water meter or underground copper pipe is tied to
the copper water lines and these lines are cut during installation of the Noryl bypass valve and/or poly pipe, an approved
grounding strap must be used between the two lines that have been cut in order to maintain continuity. The length of the
grounding strap will depend upon the number of units being installed and/or the amount of copper pipe being replaced
with poly. See Figure 1.
In all cases where metal pipe was originally used and is later interrupted by poly pipe or the Noryl bypass valve as
in Figure 1 or by physical separation as in Figure 2, an
approved ground clamp with no less than #6 copper
conductor must be used for continuity, to maintain proper
metallic pipe bonding.
Check your local electrical code for the correct clamp and
cable size.
1. Determine the best location for your water filter, bearing
in mind the location of your water supply lines, drain
line and 120 volt AC electrical outlet. Subjecting the
filter to freezing or temperatures above 43°C (110°F)
will void the warranty.
Media Installation (When Necessary)
• For installation of stack distributor, remove the old
scaleless stack/ or conventional distributor tube from the
tank after removing the media from the tank. Install the
new Scaleless stack (come complete with lower basket
and distibutor tube). Cut grey distributor tube so that the
scaleless stack and control valve fits in the tank.
• Remove the valve from the mineral tank.
• Temporarily plug the open end of the riser tube to ensure
that no resin or gravel falls down into the distribution.
• Fill mineral tank one quarter full of water to protect
distribution during gravel installation.
Figure 1
Electrical Panel
Ground Strap
Poly Pipe
Ground
From
Panel
Poly Pipe
Filter
c/w Plastic Bypass
Copper Pipe
Water Meter
Figure 2
Outside Water Line For Outside & 3rd Tap Comes From Meter
Filtered Water Line in Home
Unfiltered Water Bypass
Loop Cut & Capped
Ground Strap Required
Because of Break in Continuity
Day of the Week Control
This control regenerates the system on a weekly schedule. The schedule is defined in Master Programming by setting
each day to either “off” or “on.” The control will initiates a regeneration cycle on days that have been set to “on” at the
specified regeneration time.
Control Operation During a Power Failure
The SXT includes integral power backup. In the event of power failure, the control shifts into a power-saving mode. The
control stops monitoring water usage, and the display and motor shut down, but it continues to keep track of the time and
day for a minimum of 48 hours.
The system configuration settings are stored in a non-volatile memory and are stored indefinitely with or without line
power. The Time of Day flashes when there has been a power failure. Press any button to stop the Time of Day from
flashing.
If power fails while the unit is in regeneration, the control will save the current valve position before it shuts down. When
power is restored, the control will resume the regeneration cycle from the point where power failed. Note that if power
fails during a regeneration cycle, the valve will remain in it’s current position until power is restored. The valve system
should include all required safety components to prevent overflows resulting from a power failure during regeneration.
The control will not start a new regeneration cycle without line power. If the valve misses a scheduled regeneration
due to a power failure, it will queue a regeneration. Once power is restored, the control will initiate a regeneration cycle
the next time that the Time of Day equals the programmed regeneration time. Typically, this means that the valve will
regenerate one day after it was originally scheduled. If the treated water output is important and power interruptions are
expected, the system should be setup with a sufficient reserve capacity to compensate for regeneration delays.