Fittings And Valves; Electrical Requirements - Pentair CHALLENGER VS2 Guide D'installation

6
Only a qualified plumbing professional should install the VS2 Variable Speed Pump. Refer to "Pump Warning
And Safety Instructions" on pages ii-iii for additional installation and safety information.
Location
Note: Do not install this pump within an outer enclosure
or beneath the skirt of a hot tub or spa unless marked
accordingly.
Note: Ensure that the pump is mechanically secured to
the equipment pad.
Be sure the pump location meets the following
requirements:
1. Install the pump as close to the pool or spa as
possible. To reduce friction loss and improve
efficiency, use short, direct suction and return piping.
2. Install a minimum of 1.5 meters from the inside wall
of the pool and spa.
3. Install the pump a minimum of 1 meter from the
heater outlet.
4. Do not install the pump more than 3 meters above
the water level.
5. Install the pump in a well ventilated location protected
from excess moisture (i.e. rain gutter downspouts,
sprinklers, etc.).
6. Install the pump with a rear clearance of at least
10 cm so that the motor can be removed easily for
maintenance and repair. See Figure 1.
Piping
1. For improved pool plumbing, it is recommended to
use a larger pipe size.
2. Piping on the suction side of the pump should be
the same or larger than the return line diameter.
3. Plumbing on the suction side of the pump should
be as short as possible.
4. For most installations Pentair recommends installing
a valve on both the pump suction and return lines
so that the pump can be isolated during routine
maintenance. However, we also recommend that
a valve, elbow or tee installed in the suction line
should be no closer to the front of the pump than
five (5) times the suction line diameter. See Figure 2.
Example: A 2.5 inch pipe requires a 12.5 inch
(31.8 cm) straight run in front of the suction inlet
of the pump. This will help the pump prime faster
and last longer.
Note: DO NOT install 90° elbows directly into the
pump inlet or outlet.
Figure 1.
5 x SUCTION PIPE DIAMETER
ELBOW

Fittings and Valves

1. Do not install 90° elbows directly into pump inlet.
2. Flooded suction systems should have gate
valves installed on suction and discharge pipes
for maintenance, however, the suction gate valve
should be no closer than five times the suction pipe
diameter as described in this section.
3. Use a check valve in the discharge line when
using this pump for any application where there is
significant height to the plumbing after the pump.
4. Be sure to install check valves when plumbing in
parallel with another pump. This helps prevent
reverse rotation of the impeller and motor.

Electrical Requirements

• Install all equipment in accordance with the your
national electrical code and all applicable local
codes and ordinances.
• A means for disconnection must be incorporated in
the fixed wiring in accordance with the wiring rules.
INSTALLATION
15.2 CM
MINIMUM
10 CM
MINIMUM
Figure 2.