TP32-80/2 Installation and operating instructions

134
Safety Warning
Read This Booklet
This booklet is designed to help a certified
installer begin operation of and trouble-
shoot Grundfos VersaFlo
™
TP pumps. This
booklet should be left with the owner of
the pump for future reference and infor-
mation regarding its operation. Should the
owner experience any problems with the
pump, a certified professional should be
contacted.
Electrical Work
All electrical work should be performed by
a qualified electrician in accordance with
the latest edition of the National Electrical
Code, local codes and regulations.
Shock Hazard
A faulty motor or wiring can
cause electrical shock that
could be fatal, whether
touched directly or conducted
through standing water. For this reason,
proper grounding of the pump to the pow-
er supply's grounding terminal is required
for safe installation and operation.
The ground wire should be a copper
conductor at least the size of the circuit
conductors supplying power to the motor.
Do not ground to a gas supply line.
In all installations, the above-ground metal
plumbing should be connected to the
power supply ground as described in Article
250-80 of the National Electrical Code.
1. Pre-Installation Checklist
1.1 Confirm You Have the Right Pump
• Read the pump nameplate to make sure
that it is the correct one.
• Compare the pump's nameplate data
and its performance curve (for head,
GPM, etc.) with the application in which
you plan to install it.
• Will the pump do what you expect it to
do?
• The nomenclature for the VersaFlo TP
line of Grundfos pumps is:
Nominal diameter (suction
& discharge) of ports in mm
Circulator Pump
Maximum head in dm
Bronze
TP 50 80 B
1.2 Check the Condition of the Pump
The shipping carton your pump came in
is designed around your pump during pro-
duction to prevent damage. As a precau-
tion, it should remain in the carton until
you are ready to install it. At that point,
look at the pump and examine it for any
damage that may have occurred during
shipping. Examine any other parts of the
shipment as well for any visible damage.
1.3 Electrical Requirements
Check the motor nameplate to determine
the proper voltage, phase, and frequency
required. The voltage must be within ± 10%
of the specified motor nameplate voltage.
Dual volt-age motors must be internally
wired to match the electrical supply. A
wiring connection diagram is affixed to the
motor.
Fig. 1
1.4 Is the Application Correct for This Pump?
Compare the pump's nameplate data or its
performance curve with the application in
which you plan to install it. Will it perform
the way you want it to perform? Also,
make sure the application falls within the
following limits:
Approved applications:
• Open or closed water systems
• Glycol solutions up to 50% (requires
optional RUVV mechanical seal)
• HVAC hot and cooled water
• Condenser or cooling tower heat
exchanger circulation
• Commercial solar
• Commercial heating and fan coil
systems
• Geothermal systems
• Agricultural temperature conditioning
• Snow melting
SPEC
FRAME
H.P.
VOLTS
AMPS
R.P.M.
HZ
SE R F
RATING
CAT. NO.
FULL LOAD EF F.
SER
P.F.
PH
DES
CLASS
CODE
LO
W
VOLTAGE
HOOKUP
HIGH
VOLTAGE
HOOKUP
®
Nameplate
Wiring
Diagram
(in this case, for
a dual voltage
motor)
Correct it by...
If no voltage at motor, check feeder panel for tripped circuits.
Replace blown fuses or reset circuit breaker. If new fuses blow or circuit breaker trips, the terminal box wiring must be
checked.
Replace burned heaters or reset. Inspect starter for other damage. If heater trips again, check the supply voltage and
starter holding coil.
If no voltage, check the control circuit fuses. If there is voltage, check the holding coil for shorts. Replace bad coil.
Replace worn or defective parts.
If the motor windings are open or grounded, replace the motor.
When the meter is connected, the needle should jump toward “0” ohms and slowly drift back to infinity. Replace
capacitor if defective.
Correct wiring and change leads as required.
Refill the pump, replace lug and start the pump. Long suction lines must be filled before starting the pump.
Clean and replace. Re-prime the pump.
Reduce suction lift by lowering pump, increasing suction line size or by removing high friction-loss fittings.
Repair all leaks and retighten all loose fittings.
Convert PSI to feet (PSI x 2.31 = _____ ft.). Refer to the specific pump curve for shutoff head for that pump model. If
actual head is close to curve, the pump is probably OK. If not, remove pump and inspect.
Readjust switch or replace if defective.
Readjust setting (refer to level control manufacturer’s data). Replace if defective.
Check diaphragm for leak. Check tank and piping for leaks with soap and water solution. Check air-to-water volume.
Tank volume should be approximately 10 gal. for each gpm of pump capacity. The normal air volume is 2/3 of the total
tank volume at the pump cut-in pressure.
If voltage varies more than ±10%, contact power company. Check wire sizing.
Increase heater size or adjust trip setting.
Must be within ±5%. If not, check motor and wiring.
If an open or grounded winding is found, repair or replace the motor.
Tighten loose terminals. Replace damaged wire.
If shaft does not rotate, remove pump and inspect. Disassemble and repair.
When the ohmmeter is connected to the capacitor, the needle should jump towards “0” ohms and slowly drift back to
infinity; or, with the capacitor meter the UF reading should be ±10% of capacitor rating. Replace if defective.