Pentair STA-RITE DS3 Series User Manual

8
S536 (11-25-19)
OPERATIONS/MAINTENANCE
PRIMING THE PUMP
‘Priming’ refers to the pump expelling all air in the system and
beginning to move water from its source out into the system. It does
not refer only to pouring water into the pump (although pouring water
in is usually the first step).
NEVER run pump dry. Running pump without adequate water will
damage seals and can melt impeller and diffuser. To prevent damage,
fill pump with water before starting.
1. Remove priming plug (Figure 9).
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2. Make sure suction and discharge valves and any hoses on
discharge side of pump are open.
3. Fill pump and suction pipe with water.
NOTICE: If a priming tee and plug have been provided for a long
horizontal run, be sure to fill suction pipe through this tee and
replace plug. (Do not forget to PTFE pipe thread sealant tape the
plug.)
4. Replace priming plug, using PTFE pipe thread sealant tape on
thread, and tighten plug.
5. Start pump. Water should be produced within 10 minutes,
depending on depth of water (not more than 20’) and length of
horizontal run (10’ of horizontal suction pipe = 1’ of vertical lift due
to friction losses in the pipe).
If no water is produced within 10 minutes:
• Stop pump
• Release all pressure
• Remove priming plug
• Refill and try again.
Hazardous pressure and risk of ex plo sion and
scalding. If pump is run con ti nu ously at no flow (that is, with discharge
shut off or without priming), water may boil in pump and piping
system. Under steam pressure, pipes may rupture, blow off of fittings
or blow out of pump ports and scald anyone near.
To prevent explosion, do the following:
A. Be sure discharge (valve, pistol grip hose nozzle, etc.) is open
whenever pump is running.
B. When priming, monitor pump and piping tempera ture. If pump or
piping begin to feel warm to the touch, shut off pump and allow
system to cool off. Release all pressure in system and refill pump
and piping with cold water.
C. If pump fails to produce water when attempting to prime, release
all pressure, drain pump and refill with cold water after every two
attempts.
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80
60
40
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To avoid electrical
shock hazard, use
insulated-handle
screwdriver to short
capacitor terminals
as shown.
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Figure 10: Slide Motor
Figure 11: Remove Diffuser
Figure 12: Hold Shaft
Figure 9: Remove Priming Plug and Fill Pump Before
Starting

Pentair STA-RITE DS3 Series Specifications

General

Brand	Pentair
Model	STA-RITE DS3 Series
Category	Water Pump
Language	English