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18
INSTALLATION
continued
4.
Hand tighten the injection fitting into the FNPT fitting.
25 psi Max. Model (includes injection fitting)
a.
Install connecting nut and ferrule to the pump discharge line. Insert discharge
line into injection fitting until it reaches base of fitting.
b.
Finger tighten connecting nut to fitting.
100 psi Max. Model (includes injection check valve)
a.
Prior to connection, test injection check valve and NPT threads for leaks by
pressurizing system. If necessary, tighten an additional 1/4 turn.
b.
Install connecting nut and ferrule to the pump discharge line. Insert discharge
line into check valve body until it reaches base of body.
c.
Finger tighten connecting nut to fitting.
5.
Depress and hold the prime button and allow pump to fully prime. The prime button will
run the pump and when released the pump will return to automatic mode.
6.
Re-pressurize system, observe chemical flow as actuated by system and check all
connections for leaks.
7.
After suitable amount of dosing time, perform tests for desired chemical readings. If
necessary, fine tune dosing levels by adjusting solution strength.
The injection point and fitting require periodic maintenance to clean any
deposits or buildup. To allow quick access to the point of injection, Stenner
recommends the installation of shut-off valves.