Pool Pump Suction Requirements - STA-RITE DYNA-PRO MPRA Series Owner's Manual

Pump mount must:
Be located away from corrosive or flammable liquids.
Have enough ventilation to maintain air temperature at
less than the maximum ambient temperature rating (Max.
Amb.) listed on the motor model plate. If this pump is
installed in an enclosure/pump house, the enclosure must
have adequate ventilation and air circulation to keep the
temperature in the enclosure at or below the motor's rated
ambient temperature whenever the pump is running.
Be solid - Level - Rigid - Vibration free. (To reduce
vibration and pipe stress, bolt pump to mount.)
Allow pump suction inlet height to be as close to water
level as possible. Pump will not lift water more than
10'(3m).
Allow use of short, direct suction pipe (To reduce friction
losses).
Allow for gate valves in suction and discharge piping.
Have adequate floor drainage to prevent flooding.
Be protected from excess moisture.
Allow adequate access for servicing pump and piping.
Fire and burn hazard. Modern motors run
at high temperatures. To reduce the risk of
fire, do not allow leaves, debris, or foreign matter to
collect around the pump motor. To avoid burns when
handling the motor, let it cool for 20 minutes before
trying to work on it.
NOTICE: When connecting threaded pipe directly to
pump, use threaded seal tape to seal connections. Do not
use pipe dope; pipe dope causes cracking in some plastics
and may damage components in piping system.
When connecting pipe to pump with union half, use
threaded seal tape between pipe and union adapter.
Union collar to pump should be assembled dry and
hand-tight.
NOTICE: Pump suction and discharge connections
have molded in thread stops. DO NOT try to screw pipe
in beyond these stops.
Taping Instructions:
Use only new or clean PVC pipe fittings.
Wrap male pipe threads with one to two layers of
threaded seal tape. Cover entire threaded portion of
pipe.
Do not overtighten or tighten past thread stop in pump
port!
If leaks occur, remove pipe, clean off old tape, rewrap
with one to two additional layers of tape and remake the
connection.
NOTICE: Support all piping connected with pump!
Piping:
Use at least 2" (51mm) pipe.
Increase size if a long run is
needed.
To avoid strains on the pump,
support both suction and
discharge pipes
independently. Place these
supports near the pump.
To avoid a strain left by a gap
at the last connection, start all
piping at the pump and run
pipe away from the pump.
To avoid airlocking, slope
suction pipe slightly upward
toward the pump.
NOTICE: To prevent flooding
when removing pump for
service, all flooded suction systems must have gate
valves in suction and discharge pipes.
POOL PUMP SUCTION
REQUIREMENTS
Pump suction is hazardous and can trap and
drown or disembowel bathers. Do not use or operate
swimming pools, spas, or hot tubs if a suction outlet
cover is missing, broken, or loose. Follow the guidelines
below for a pump installation which minimizes risk to
users of pools, spas, and hot tubs.
Entrapment Protection
The pump suction system must provide protection
against the hazard of
suction entrapment or hair entrapment/entanglement.
Suction Outlet Covers
All suction outlet covers must be maintained. They must
be replaced if cracked, broken, or missing.
See Page 5 for outlet cover certification requirements.
All suction outlets must have correctly installed, screw-
fastened covers in place.
4
Hazardous suction.
Can trap hair or
body parts, causing
severe injury
or death.
Do not block
suction.