Pentair AUTOTROL LOGIX 764, Руководство по обслуживанию

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Grounding the Plumbing
It is important that the plumbing system be electrically
grounded. When a water softener is installed, a non-metallic
bypass valve may interrupt the grounding. To maintain
continuity, a grounding strap can be purchased at a hardware
store (Figure 2). When installed, the strap will connect the
inlet plumbing to the outlet plumbing to properly ground the
system.
If you have other water treating equipment such as a
chlorinator, sediment filter, neutralizer, iron filter, or taste
and odor filter, they should be installed upstream of a water
softener.
You may wish to consult a water professional if additional
water treating equipment is to be installed.
Figure 2
Bypass Valve
A bypass valve system should be installed on all water
conditioning systems. Bypass valves isolate the conditioner
from the water system and allow unconditioned water to be
used. Service or routine maintenance procedures may also
require that the system is bypassed. Figures 3 and 4 show the
two common bypass methods.
Normal Operation
In Bypass
Water
Conditioner
In
Out
Water
Conditioner
In
Out
Figure 3 Series 1265 Bypass for Use
with Performa Valve Bodies
Water
Conditioner
Water
Conditioner
Normal Operation In Bypass
Figure 4 Typical Globe Valve Bypass System
Brine Tank
Normally one brine tank is needed for each media tank. The
use of block salt or rock salt is not recommended. If a brine
shelf is used, two brine tanks are required. This is due to
the increased time needed to produce a concentrated brine
solution when using a salt shelf. If rapid multiple exhaustions
and regenerations are anticipated, do not use a salt shelf even
if two brine tanks are used.
Drain Line Connection
NOTE:
Standard commercial practices are expressed here.
Local codes may require changes to the following
suggestions. Check with local authorities before
installing a water conditioning system.
• The unit should be above and not more than 20'
(6.1 m) from the drain. Connect an appropriate adapter
fitting and 3/4" (1.9 cm) plastic tubing to the drain line
connection on the rear of the control valve.
• If the backwash flow rate exceeds 5 gpm (22.7 Lpm) or if
the unit is located 20-40' (6.1-12.2 m) from drain, use 1"
(2.5 cm) tubing. Use appropriate fittings to connect the
tubing to the drain connection on valve.
• If the unit is located where the drain line must be
elevated, the drain line may be elevated up to 5' (1.5 m),
provided the run does not exceed 15' (4.6 m) and water
pressure at the system is not less than 40 psi (2.76
bar). Elevation can be increased by 2' (61 cm) for each
additional 10 psi (.69 bar) of water pressure at the drain
connector.
• When the drain line is elevated, but empties into a drain
below the level of the control valve, form a 7" (18 cm) loop
at the far end of the line so that the bottom of the loop is
level with the drain line connection. This will provide an
adequate siphon trap. When the drain empties into an
overhead sewer line, a sink-type trap must be used.
Secure the end of the drain line to prevent it from moving (see
Figure 5 Drain Line Connection):
1" AIR GAP
INCORRECT
Construct air gap as shown or purchase air
gap device as used with clothes washers.
CORRECT
Figure 5 Drain Line Connection
NOTE:
Waste connections or the drain outlet should be
designed and constructed to provide for connection to
the sanitary waste system through an air gap of two
pipe diameters or 1" (22 mm), whichever is larger.
WARNING: Never insert a drain line directly into a drain,
sewer line, or trap (Figure 5 Drain Line
Connection). Always allow an air gap between
the drain line and the wastewater to prevent
the possibility of sewage being back-siphoned
into the softener.
EQUIPMENT INSTALLATION CONTINUED
4 • AUTOTROL
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Logix 764 Control Performa Cv Series Valves (273, 278) Service Manual