Xylem IM194 R02 GRINDER PUMPS 1 AND 3 11?4 DISCHARGE User Manual

Page 6

INSTALLATION

Connect the pump(s) to the guide rail pump adapters or to the

discharge piping. Guide rail bases should be anchored to the

wetwell floor.
Complete all wiring per the control panel wiring diagrams

and NEC, Canadian, state, provincial and/or local codes.

This a good time to check for proper rotation of the

motors/impellers.

DO NOT PLACE HANDS IN PUMP

SUCTION WHILE CHECKING

MOTOR ROTATION. TO DO SO WILL

CAUSE SEVERE PERSONAL INJURY.
Always verify correct rotation. Correct

rotation is indicated on the pump casing.

Three phase motors are reversible. It is

allowable to bump or jog the motor for a

few seconds to check impeller rotation. It

is easier to check rotation before installing

the pump. Switch any two power leads to

reverse rotation.

Lower the pump(s) into the wetwell.
Check to insure that the floats will operate freely and not

contact the piping.

OPERATION

Once the piping connections are made and checked you can

run the pumps.
Control Panel Operation – Fill the wetwell with clear water.

Use the pump H-O-A (Hand-Off-Automatic) switches

in Hand to test the pumps. If they operate well in Hand

proceed to test Automatic operation. If the pumps run but

fail to pump, they are probably air locked, drill the relief holes

per the instructions in the Piping Section.
Place Control Panel switch(es) in Automatic position and

thoroughly test the operation of the ON, OFF, and

Alarm floats by filling the wetwell with clear water.

Important: Failure to provide a Neutral from the power

supply to a 1Ø, 230 volt Control Panel will not allow the

panel control circuit to operate. The Neutral is necessary

to complete the 115 volt control circuit.
Check voltage and amperage and record the data on the front

of this manual for future reference. Compare the amperage

readings to the pump nameplate maximum amperage. If

higher than nameplate amperage investigate cause. Operating

the pump off the curve, i.e. with too little head or with high

or low voltage will increase amperage. The motor will operate

properly with voltage not more than 10% above or below

pump nameplate ratings. Performance within this range will

not necessarily be the same as the published performance at

the exact rated nameplate frequency and voltage. Correct the

problem before proceeding. Three phase unbalance is also a

possible cause. See Three Phase Power Unbalance and follow

the instructions.
Reset the Alarm circuit, place pump switch(es) in the Au-

tomatic position and Control Switch in ON position. The

system is now ready for automatic operation.
Explain the operation of the pumps, controls and alarms to

the end user. Leave the paperwork with the owner or at the

control panel if in a dry, secure location.

OPERATION

INSTALLATION

DANGER

Hazardous Machinery

1st, 2nd and 3rd Characters – Discharge Size and Type

1GD = 1¼" discharge, grinder, dual seal
4th Character – Mechanical Seals

5 = silicon carbide/silicon carbide/BUNA – lower seal and

carbon/ceramic/BUNA – upper seal (standard)

3 = silicon carbide/tungsten carbide/BUNA – lower seal

and carbon/ceramic/BUNA – upper seal (optional)
5th Character – Cycle/RPM

1 = 60 Hz/3500 RPM

5 = 50 Hz/2900 RPM
6th Character – Horsepower

G = 2 HP
7th Character – Phase/Voltage

1 = single phase, 230 V

2 = three phase, 200 V

3 = three phase, 230 V

4 = three phase, 460 V

5 = three phase, 575 V

6 = three phase, 380 V

8 = single phase, 208 V

NOMENCLATURE DESCRIPTION

8th Character – Impeller Diameter

A = 5

⁄

", Standard

C = 4¾"

B = 5¼"

D = 4¼"

9th Character – Cord Length (Power and Sensor)

A = 20' (standard)

G = 75'

D = 30'

J = 100'

F = 50'
10th Character – Options

S = Seal fail, moisture sensing circuit

E = Epoxy paint
Last Character – Option

H = Pilot duty thermal sensors

These options add a 2-wire or 4-wire sensor cord to the pump and

require optional control panel circuits to operate. See panel options

on control panel bulletin BCP5.