Pentair Evolio 255 10, Installer Manual

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Installer manual Evolio 255 740-760 - Installation
Ref. MKT-IM-037 / D - 25.10.2021 33 / 90
• in the same way, using lubricant* [ → Page 33] on the valve thread is not allowed and will void
the warranty for the valve and tank. Indeed using lubricant there will cause the valve to be
over-torqued, which may lead to valve thread or tank thread damage even if the connection to
piping has been done following the above procedure.
*Note: Use of petroleum-based grease and mineral based lubricant is totally forbidden, not only
on the valve thread, since plastics used (especially Noryl) will highly suffer from contact with this
type of grease, leading into structural damage hence to potential failures.
4.5.6.2 Bypassing
A bypass valve system should be installed on all water conditioning systems. Bypass valves isolate
the softener from the water system and allow unconditioned water to be used. Service or routine
maintenance procedures may also require that the system is bypassed.
Normal operation
In
In Bypass
In
In Out Out
CAUTION
Do not solder pipes with lead-based solder.
Do not use tools to tighten plastic fittings.
Over time, stress may break the connections. When the 256 bypass valve is used, only
hand tighten the plastic nuts.
CAUTION
Do not use petroleum grease on gaskets when connecting bypass plumbing. Use only
100% silicone grease products when installing any plastic valve.
Non-silicone grease may cause plastic components to fail over time.
4.5.7 Drain line connection
Info
Standard commercial practices are expressed here.
Local codes may require changes to the following suggestions.
Check with local authorities before installing a system.