Water; Electrical; Mechanical - Pentair FLECK 2910 NXT Installer Manual

Installer Manual Fleck 2910 - NXT - Installation
• When installing the water connection (bypass or manifold), first connect to the plumbing system.
Allow heated parts to cool and cemented parts to set before installing any plastic parts. Do not
get primer or solvent on O-rings, nuts, or the valve.

5.3.2. Water

• Water temperature must not exceed 43°C for standard, 65°C for volumetric and 82°C for time
clock.
• A minimum of 1.8 bar of water pressure is required for the regeneration valve to operate
effectively.
A
Mandatory
Do not exceed a maximum of 8.6 bar inlet pressure. In such cases, it is necessary to install
a pressure regulator upstream the system.

5.3.3. Electrical

There are no user-serviceable parts in the AC adapter, motor, or controller. In the event of a failure,
these should be replaced.
• All electrical connections must be completed according to local codes.
• Use only the power AC adapter that is supplied.
A
Mandatory
The use of any other power adapter than the one supplied void the warranty of all electronic
parts of the valve.
• The power outlet must be grounded.
• To disconnect power, unplug the AC adapter from its power source.
• An uninterrupted current supply is required. Please make sure that the voltage supply is
compatible with the unit before installation.
• Make sure the controller power source is plugged in.
• If the electrical cable is damaged, it is imperative that it is replaced by a qualified personal.

5.3.4. Mechanical

• Do not use petroleum-based 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.
• Existing plumbing should be in a good shape and free from limescale. In case of doubt, it is
preferable to replace it.
• All plumbing must be completed according to local codes and installed without tension or
bending stresses.
• 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.
• Do not use lead-based solder for sweat solder connections.
• The distribution tube should be cut 6 to 19 mm below the top of the tank. Slightly bevel the ridge
in order to avoid deterioration of the seal whilst fitting the valve.
• The drain line must be a minimum of 25.4 mm (1") in diameter.
34 / 98 Ref. MKT-IM-002 / A - 18.11.2016