Pentair CHALLENGER VS2 Guide D'installation page 13

13
Priming
This pump is shipped with Priming mode ENABLED. Unless the Priming settings are changed in the menu, be aware
that the pump will speed up to the priming speed when the pump is powered on for the first time, and the
start/stop button is pressed.
Before turning the pump ON, be sure the following conditions are met:
1. Open filter air relief valve.
2. Open valves.
3. Pool return is completely open and clear of any blockages.
4. Water in the pump basket.
5. Stand clear of the filter or other pressurized vessels.
DO NOT run the pump dry. If the pump is run dry, the mechanical seal will be damaged and the pump will start leaking.
If this occurs, the damaged seal must be replaced. ALWAYS maintain proper water level in your pool (half way up
skimmer opening). If the water level falls below the skimmer opening, the pump will draw air through the skimmer, losing the prime and
causing the pump to run dry, resulting in a damaged seal. Continued operation in this manner could cause a loss of pressure, resulting
in damage to the pump case, impeller and seal and may cause property and personal injury.
Priming will automatically run when the VS2 Variable
Speed Pump is started from a stopped state, except
when running in Quick Clean mode. Priming will run
at 2850 RPM by default, and will last for 5 minutes.
The drive's screen will display and cycle through
the following things "PrI - Priming Speed, PrI --
Remaining Time".
Once priming has begun, the speed can be adjusted
between 3450 and 1700 RPM using the "+" and "-"
arrows. If it is adjusted below 1700 RPM, Priming
mode will be disabled and the pump will immediately
begin to run the scheduled speed.
When priming is disabled and the pump is started
from a stopped state, the screen will display, "PrI
- OFF" for 10 seconds while running the scheduled
speed (See Figure 11). This allows the user time to
enable priming mode by pressing the "+" arrow. If the
user chooses to re-enable priming mode, the pump
will then transition from the scheduled speed to 1700
RPM. The user can increase the priming speed from
1700 RPM by pressing the "+" arrow. The 5 minute
priming countdown timer starts when priming is first
engaged.
PrI
Figure 11: Priming Deactivation
The installer should set the priming speed to be
sufficient for priming the pump from a fresh install,
but not so fast that there is a substantial waste of
energy during the 5 minute priming window. The time
the pump needs to achieve prime can change based
on local environmental conditions such as water
temperature, atmospheric pressure, and your pool's
water level. All of these things should be taken into
consideration when setting the priming speed, however
in most cases the pump will not need to run at 2850
RPM to successfully prime itself.
Please test and verify chosen priming speeds more
than once, letting the water drain from the system in
between each test.
Note: The pump strainer basket should always remain
full to the bottom of the inlet in order to prevent air from
entering the system.
OFF