Blue Angel Pumps BWST50 - Manual (Page 3)

3
BWST, BWSF and BWSCAP Series
www.blueangelpumps.com
specifications for cut-in/out levels.
The pump will recycle thereafter as
required.
5. Do not operate the pump unless it
is submerged in water. Dry running
causes pump failure.
6. The motor is equipped with an
automatic reset thermal protector.
7. While the pump is draining the pit,
verify that the discharge piping is
carrying the water to a point several
feet away from the foundation.
8. If pump discharge line is exposed to
freezing temperature, the exposed
line must be pitched to drain.
Trapped water will freeze and
damage the pump.
FOR BWSCAP MODELS ONLY:
9. Sump pump will turn on, when
water is about 1.5 inch from the top
of the switch.
10. Sump pump will run a minimum of 4
seconds, to a maximum of 16 before
stopping.
11. Sump pump run time will be
determined by the sump pit size and
water flow rate into the sump pit.
12. Under flooding conditions, the sump
pump will stop for 1 second, every
16 seconds, and automatically turn
back on.
Maintenance
Always
disconnect
the electrical supply before
attempting to install, service,
relocate or perform any
maintenance. If the power source is out
of sight, lock and tag in the open (off)
position to prevent unexpected power
application. Failure to do so could result
in fatal electrical shock.
Only qualifi ed electricians should repair
this unit. Improper repair could result in
fatal electrical shock.
1. Let the pump cool for a minimum of
two hours before servicing because
the pump contains hot oil under
pressure and the motor is hot.
2. Disassembly of the motor prior to
expiration of warranty will void the
warranty. If repairs are required, see
troubleshooting chart.
3. Inlet should be kept clean and free
of all foreign objects and inspect
annually. A clogged inlet will
damage pump.
4. Pump should be checked monthly for
proper operation.
This pump contains
dielectric oil for
cooling. This oil can be harmful to
the environment. Check the state
environmental laws before disposing
this oil.
Specifications
Power supply requirements 120V, 60 hz
Motor Single phase, oil filled
Liquid temperature range 40°F to 120°F
Circuit requirements 15 amps (min)
Dimensions 11 in. high x 9 in. base
Cut-in level (factory set) BWST = 14" BWSF = 7”
Cut-out level (factory set) BWST = 7” BWSF = 2-1/2”
Construction
Motor housing Glass reinforced thermoplastic
Volute Thermoplastic
Impeller Glass reinforced thermoplastic
Shaft 416 Stainless steel
Seals Buna N
Discharge 11/2” NPT
Figure 5
Working
surface to
be kept
free of
foreign
material