TP32-80/2 Installation and operating instructions

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Minimum Pumping Rates:
TP32,TP40,TP50 . . . . . . . . . . . . . . . . . . . .8 GPM
TP80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 GPM
TP100 . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 GPM
The bypass should be routed back to a heat
dissipating source or to drain, depending
on the liquid being pumped and local codes.
2.3 Installing the Pump
2.3.1 Pump Location
The pump should be installed in a dry,
well-ventilated area which is not subject to
freezing or large variations in temperature.
The pump should never be mounted
within six inches of any obstruction or hot
surface.
Pumps to be installed outdoors or in a
dusty environment should be ordered with
a totally-enclosed-fan-cooled motor (TEFC)
attached to prevent motor failure.
2.3.2 Position in Piping System
Do not mount the pump at the highest or
lowest point in the piping system.
If the pump is installed at the highest point
in the piping system, it may experience
reduced performance and increased noise
due to air trapped in the pump.
If the pump is located at the lowest point
in the piping system, the dirt and sediment
in the system may collect inside the pump,
causing premature wear to the shaft seal.
2.3.3 Proper Orientation
VersaFlo TP pumps can be mounted either
vertically or horizontally, and all positions
in between. However, the motor shaft
must never fall below the horizontal plane.
Recommended
DO NOT mount motor
with shaft below
horizontal plane
X
2.3.4 Direction of Flow for Specific
Applications
Arrows on the flanges of the pump volute
show the flow direction of water through
the pump.
Pumps used to circulate domestic water
should ALWAYS be installed in a vertical
section of the circulating pipe and pump
upwards, and an effective air vent should
be used in the same vertical section of pipe.
If the pump must be installed in a vertical
pipe pumping down, an air vent should be
installed at the highest point before the
pump.
2.3.5 Suggested Accessories
Isolation valves — should be installed on
each side of the pump to avoid having to
drain the system if the pump needs to be
cleaned or repaired.
Check valve — should be installed in the
discharge pipe.
Plugged tee or capped pipe — should be
installed in the suction line to fill the pump
and pipe before start-up, especially if the
system is not pressurized.
Vibration isolators — should be used in
noise-sensitive areas to prevent vibra-tion
from being transmitted to the structure.
Relief valve of bypass line — should be
installed to allow sufficient water to
circulate through the pump to provide
adequate cooling and lubrication of the
pump's bearings and seals.
2.4 Electrical Hookup
Turn the incoming POWER OFF and make
the proper electrical connections according
to the diagram on the motor and the latest
edition of the National Electrical Code.
Do not start the pump — even to check
the direction of rotation — until it has
been filled with water. The pump may be
seriously damaged if it is run dry.
3. Starting the Pump the First Time
3.1 Prime the Pump
3.1.1. In Closed/Open System Where Water
Source is Above the Pump
1. Close the pump isolation valves and
open the air vent screw.
2. Gradually open the suction isolation
valve until a steady stream of airless
water runs out the air vent hole.
Fig. 7
1. Burned contacts on motor starter.
2. Loose terminals in starter/terminal box
or possible wire defect.
3. Too high or too low supply voltage.
4. Motor windings are shorted or
grounded. Check winding and insulation
resistances.
5. Pump is damaged causing a motor
overload.
5.1.3 Winding Resistance
5.1.3.1 How to Measure
Turn off power and disconnect the
supply power leads in the pump terminal
box. Using an ohmmeter, set the scale
selector to R x 1 and zero adjust the meter
by touching the two ohmmeter leads
together.
Touch the leads of the ohmmeter to two
motor leads.
Fig. 8
Single phase motors - touching the leads
of the ohmmeter to the two outgoing "hot"
motor leads (either a single motor lead or
combination of leads joined together) will
measure the main winding's resistance.
Three phase motors - touching the leads
of the ohmmeter to any two hot leads will
measure that winding's resistance. Repeat
for all three possible lead combinations (L
1
and L
2
, L
2
and L
3
, L
1
and L
3
).
5.1.3.2 Evaluation
If all ohm values are normal, the motor
windings are neither shorted nor open.
If any one ohm value is less than normal
(-25%), that motor winding may be starting
too short. If any one ohm value is greater
than normal (+25%), the winding may
be starting too open. If some values are
high and some are low, the leads may be
connected incorrectly, or they may have a
break in the insulating jacket.
5.1.4 Insulation Resistance (Lead to
Ground)
5.1.4.1 How to Measure
Turn off power and disconnect the supply
power leads in the pump terminal box.
Using an ohmmeter, set the scale selector
to R x 100 and zero adjust the meter
by touching the two ohmmeter leads
together. Touch one ohmmeter lead to a
motor lead and one to ground. Repeat for
each lead.
Fig. 9
5.1.4.2 Evaluation
The resistance values for new motors must
exceed 1,000,000 ohms. If they do not,
replace the motor.