Aqua-Pure APIF100 - Manual (Page 19)

CAUTION
To reduce the risk associated with property damage due to water leakage:
• Installation and use MUST comply with existing state or local plumbing codes;
Special Instructions for Split-Stream and Public Water Supply Type Installations:
For a split-stream type installation, a secondary air-to-water pressure tank must be installed as in Figure 1. On a public water supply type installation, a pressure
tank must be installed as in Figure 1. It is recommended in both applications to use a standard air-to-water type pressure tank with a deep well air volume con-
trol (air release valve). The pressure tank should be of same capacity as would normally be installed if the water system were a standard private well. Also note,
both applications require a 1” normally-closed solenoid valve. Follow standard installation procedures above with the following additions and modifi cations.
1) Install a secondary air-to-water pressure tank in Figure 1 as indicated by the appropriate diagram.
2) Install a normally-closed solenoid valve, 110, 60Hz after water meter and after a line split for untreated water (if there is one). The use of a check valve
in the water line is highly recommended.
3) On both types of installation, install the hydro-charger between the normally-closed solenoid valve and pressure tank (secondary air-to-water pressure
tank on split-stream type installation) maintaining a minimum of 10” on both inlet and outlet of hydrocharger.
4) Install the pressure switch after hydro-charger and wire it to the secondary pressure switch on the split-stream. Power for the secondary pressure
switch should be provided by a separate 110V, 60 Hz source for the split stream installation. For public water supply installation, power for the pres-
sure switch should also be provided by a separate 110V, 60 Hz power source. Set the high pressure on the pressure switch (which controls opening and
closing of solenoid valve) 2 to 3 psi lower than low pressure on primary pressure switch. Example: if the primary pressure switch is set at 40/60 psi, set
the secondary pressure switch at 20/38 psi. For public water supply type installations, contact your local water department or plant operator and ask
what the normal low system pressure is. Set the high pressure on the pressure switch 2 to 3 psi lower than this figure.
IMPORTANT NOTE
Failure to set PRESSURE SWITCH as described above will NOT allow proper closing of SOLENOID VALVE during periods of low system pressure. Im-
proper function of SOLENOID VALVE will cause total failure of system.
Special Service Instructions:
Under normal circumstances removal of valve should never be required. However, if it must be removed, it can be done by rotating the valve head assembly to the
left (counter-clockwise). Pressure should be relieved before attempting any disassembly. Upon reassembly, all O-rings should be lubricated with silicone grease.
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