First Sales FBW10 Installation Instructions Manual page 5

Pre-installation Instructions (cont.)
Location Considerations
The proper location to install the FBW/FBW ARSENIC will ensure optimum filter performance and satisfactory
water quality. The following factors should be considered in selecting the location of this system.
1. The FBW/FBW ARSENIC must be installed after the pressure tank (private well system only).
2. The system should be installed as close as possible (preferably within 15') to an adequate floor or
laundry drain capable of handling the backwash cycle volume and flow rate (refer to unit
specifications). An air gap should be provided between the FBW drain line and plumbing drain.
3. All water conditioning equipment should be installed at least 10' prior to the water heater. Water
temperatures exceeding 100°F can damage the internal components of the control valve and filter
tank. An expansion tank may need to be installed in the line to the water heater in order to allow for
thermal expansion and comply with local plumbing codes.
4. Water pressure must not exceed the range of 25 - 100 psi.
5. The system must not be subject to freezing temperatures.
6. The control valve requires 115/120 V, 60 Hz electricity from a three prong outlet that is not wired to
a switch.
7. Never install a cartridge type filter prior to the FBW/FBW ARSENIC. Any cartridge or in-line filter (if
desired) may be installed after the FBW/FBW ARSENIC system. This will prevent restricting the
water flow and pressure available for backwash.
8. Appliances requiring extended periods of continuous or high flow water use (i.e. geothermal heat
pumps, swimming pools, lawn irrigation, outside hose bibs, etc.) should bypass the filter.
Typical Installation
Treated Water
Water Heater
Grounding Strap
Filtered Hard Water
Brine Tank Softener
FIGURE 1: Typical Installation
FBW/FBW
Iron Filter
(if required)
ARSENIC
4
Untreated Water for
geothermal heat pumps,
swimming pools, lawn
irrigation, hose bibs etc.
Untreated Water
Pressure Tank
Tank