Description; Technical Specifications - Pentair FLECK 2910 NXT Installer Manual

Installer Manual Fleck 2910 - NXT - Description
3.

Description

3.1.

Technical specifications

Design specifications/ratings
Valve body ............................................... Brass
Rubber components ............................... EP or EPDM
Weight (valve with controller) ................ 21 kg (max)
Recommended operating pressure ....... 1.8 - 8.6 bar
Maximum inlet pressure ........................ 8.6 bar
Hydrostatic test pressure....................... 20 bar
Water temperature std........................... 1 - 43°C
Water temperature for HW volumetric .. 1 - 65°C
Water temperature for HW time clock... 1 - 82°C
Ambient temperature ............................. 5 - 40°C
Flow rates (3.5 bar inlet - 16°C - valve only)
Continuous (Δp = 1 bar) .......................... 24.0 m
Peak (Δp = 1.8 bar)................................. 31.0 m
Cv*........................................................... 27.0
Kv*........................................................... 23.4
Maximum backwash (Δp = 1.8 bar) ........ 8.0 m
*Cv : Flow rate in gpm across the valve at a pressure drop of 1 psi at 60°F.
*Kv : Flow rate in m 3 /h across the valve at a pressure drop of 1 bar at 16°C.
Valve connections
Tank adapter thread ............................... 4"8UN
Inlet/Outlet ............................................. Female 2" (DN40) BSP
Distributor tube ...................................... 50 mm O.D. [DN40]
Drain line ................................................ 1" 11NPT
Brine line (1600/1650) ............................ ⅜"
Brine line [1700/1710] ............................ ½"
Electrical
Controller operating voltage .................. 24 VAC
Input supply frequency ........................... 50 or 60 Hz (controller configuration dependent)
Transformer voltage............................... 24 VAC
Motor input voltage................................. 24 VAC
Controller power consumption ............. 60 W
Protection rating..................................... IP 22
Power supply .......................................... 230 Vac, 50/60 Hz,30 VA, Class II
Transient overvoltages ........................... within the limits of category II
Pollution Degree..................................... 3
Temporary overvoltages must be limited in duration and in frequency.
12 / 98
3
/h
3
/h
3
/h
Ref. MKT-IM-002 / A - 18.11.2016