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5.3.5. Mechanical
•
Do not use PTFE (plumber's tape) lubricants such as vaseline, oils, or hydrocarbon-based
lubricants. Use only 100% silicone lubricants;
•
All plastic connections should be hand tightened. PTFE (plumber's tape) may be used on
connections that do not use an O-ring seal. Do not use pliers or pipe wrenches;
•
All plumbing must be completed according to local codes;
•
Soldering near the drain line should be done before connecting the drain line to the valve.
Excessive heat will cause interior damage to the valve;
•
Observe the drain line requirements:
Maximum 1 m (3 ft 3 in) high at 2 bars (29 psi) inlet pressure. Add 50 cm (1 ft 7 in) for each
additional 1 bar (14.5 psi) inlet pressure;
•
Do not use lead-based solder for sweat solder connections;
•
The drain line must be a minimum of 12.7 mm (½") in diameter. Use 19 mm (¾") pipe if the
backwash flow rate is greater than 26.5 lpm (5.83 gpm) or the pipe length is greater than 6 m
(19 ft 8 in);
•
Do not support the weight of the system on the control valve fittings, plumbing, or the bypass;
•
It is not recommended to use sealants on the threads. Use PTFE (plumber's tape) on the threads
of the 2" BSP or in any other threaded connection in the valve.
5.3.6. Integration constraints
The location of a water treatment system is important. The following conditions are required:
•
Level platform or floor;
•
Room to access equipment for maintenance and adding brine (salt) to tank;
•
Total minimum pipe run to water heater of 3 m (10 ft) to prevent backup of hot water into system;
•
Always install a check valve to protect the softener from hot water return;
•
Local drain for discharge as close as possible;
•
Water line connections with shut off or bypass valves;
•
Must meet any local and state codes for the installation site;
•
The valve is designed for minor plumbing misalignments. Do not support the weight of the
system on the plumbing;
•
Make sure all soldered pipes are fully cooled before attaching plastic valves to the plumbing;
•
The existing plumbing should be in a good condition and free from limescale. If in doubt, replace
it. The installation of a pre-filter is always advised.
Ref. MKT-IM-003 / B - 19.04.2017
Installer manual Siata V132 - SFE - Installation
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