Fittings And Valves; Electrical Requirements - Pentair VS2 Guia De Instalacion

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.