Operations; Bypass Operation - Hydro Systems Twist II Clean Mode D'emploi

Clicking Sound is Normal
Fluid  owing through the injector will automatically cause
the injector to "click" and inject a set amount of solution
into the  uid line. The higher the  ow rate the more frequent
the "clicking". The injector is designed to inject solution
proportionally (at the same set ratio) regardless of  uid  ow.
Service Fluid Flow
Fluid  ow and pressure must be within the established
speci cations (see Speci cation on page 6) for your model.
Change Feed (Injection) Rate
The feed rate on the injector is adjustable EVEN WHILE
OPERATING AND UNDER PRESSURE. To change feed rate see
(Fig. 1). Do not remove #79 when injector is under pressure.
Rotate Ratio Adjuster (#61) (Fig 1) up or down using the
Setting Indicator Mark (Fig 1a) to select the desired feed rate.
NOTE: Do not screw Ratio Adjuster Sleeve below lowest
setting line. Measure outlet  uid to assure desired feed rate
is being delivered.
#79
Fig. 1a
English: 8

Operations

Fig. 1
A
#61

Bypass Operation

Injecting solution into the  uid line can be TEMPORARILY
stopped with the On/Off feature (Fig. 2). Moving the
On/Off Lever to the OFF position allows service  uid to
pass through the injector without injecting chemical. No
"clicking" will be heard.
With the On/Off lever set to the ON position the injector
will operate as normal and "clicking" will be heard when
 uid is  owing. It is recommended to use the three-valve
bypass (see Fig. 4), for continued bypassing or servicing
of the injector.
Fig. 2
Off Position
(not clicking)
A
Run Position
(clicking)
Fig. 3
Typical wall
mounting