Install Instructions

ManualsBrandsBell & Gossett ManualsCirculator Pumps2/5 HP, PL-55B Bronze Pump, Lead Free

PERIODIC INSPECTION

Bell & Gossett Booster Pumps are designed to provide years

of trouble free service. It is recommended that periodic in-

spections be made to check for potential problems with the

PERIODIC INSPECTION

pump. If any leakage or evidence of leakage is present repair

or replace the unit.

FIG. 5

REAR

BEARING

CONDUIT BOX

SHAFT SLEEVE

PUMP BODY

BODY GASKET

COVER PLATE ASM

IMPELLER ASM

W/THREADED HUB

SEAL ASM

FRONT BEARING

HOUSING/STATOR ASM

SHAFT/ROTOR ASM

Reposition the face plate on the motor housing. Gently

tap the face plate evenly around its diameter to drive it

into the recess provided in the motor housing.

18. Clean the shaft and sleeve before installing the new seal.

19. Slide the new carbon seal head onto the shaft sleeve until

it contacts the seal seat. Slide the new “O-Ring” and

back-up ring along the shaft sleeve until they fit inside the

counter bore in the seal head. Place the seal spring

between the back-up ring and the seal cage while posi-

tioning the seal cage flush with the end of the sleeve.

Place the small end of the spring against the back-up ring.

The three driving legs of the seal cage should engage the

three slots on the seal head. While holding the rotor

assembly with the screwdriver, thread the impeller onto the

shaft in a counter clockwise direction. Tighten the impeller

with light hand pressure. Take care to avoid bending a

rotor cooling fin or damaging the shaft sleeve.

10. Clean the recess in the pump body and install a new body

gasket.

11. Install the pump in the body and secure with four cap-

screws. Apply torque evenly in a criss cross pattern in 40

in-lb (4.52 N

•

m) increments to a torque of 80 in-lb (9.04 N

•

m).

12. Reinstall into the system using new flange gaskets. For

instructions, see sections “PUMP INSTALLATION” and

“WIRING INSTRUCTIONS” on pages 2 and 3.

INSTRUCTIONS FOR REPAIRING

MECHANICAL SEAL

11. Follow steps 1 through 4 of section titled “REMOVAL OF

PUMP FROM EXISTING SYSTEM FOR REPLACEMENT.”

12. Loosen the four capscrews that hold the motor housing to

the pump body. Remove these screws and remove the

housing from the pump body.

13. Place the pump on a flat work surface and insert a screw-

driver into one of the endplate ventilation slots until it

engages one of the rotor cooling fins. While holding the

rotor with the screwdriver, turn the impeller clockwise.

Note that the impeller is molded around a metal hub with a

left hand thread. Remove the impeller from the shaft.

14. Remove the seal assembly from the shaft by sliding it off

the shaft sleeve.

15. Clean the seal seat with a clean rag and inspect for groov-

ing or cracks. If it shows no grooving or cracks, it may be

cleaned and reused.

16. If the seal seat is to be replaced, the face plate must be

removed from the motor housing. Remove it by gently pry-

ing it away from the housing.

17. Remove the seal seat and cup. Lubricate the cup with

soapy water and install new parts in the face plate recess.

SEAL

CAGE

SEAL

SPRING

BACK-

RING

O-RING

CARBON

SEAL HEAD

SEAL

SEAT

SEAL

CUP

Packaged together

as an assembly

SEAL

COMPONENTS

P L

™

Booster Pumps

INSTALLER:

PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE.

NOTE: Bell & Gossett recommends Bronze Booster Pumps

be used for pumping potable water.

This pump is nonsubmersible, for indoor use only.

SAFETY

INSTRUCTIONS

This safety alert symbol will be used in this manual and on the

pump safety instructions decal to draw attention to safety

related instructions. When used, the safety alert symbol

means ATTENTION! BECOME ALERT! YOUR SAFETY IS

INVOLVED! FAILURE TO FOLLOW THE INSTRUCTIONS MAY

RESULT IN A SAFETY HAZARD.

Your Series PL

™

Booster Pump should have the warning/

caution label and nonsubmersible warning label (Fig. 1)

displayed on the pump conduit box. If this warning and cau-

tion is missing or illegible, contact your local Bell & Gossett

Representative for a replacement.

DESCRIPTION

The Series PL

™

Booster Pump features permanently lubricated

bearings, non-overloading permanent split capacitor motor

with thermal protection and quiet operating construction.

PUMP APPLICATION

The Series PL

™

Booster Pump may be used for water circulat-

ing applications in hydronic and solar systems.

It has not been investigated, nor is it intended for use in swim-

ming pool and marine areas.

OPERATIONAL LIMITS

These pumps are designed to pump liquids compatible

with their iron or bronze body construction.

Maximum Working Pressure: 150 psi (10 bar)

Maximum Operating Temperature: 225°F (107°C)

Electrical Rating: 115V, 60 Hz, 1PH

230V, 60 Hz, 1PH

Do not exceed these values.

WARNING

BEFORE INSTALLING, USING

OR SERVICING THIS PRO-

DUCT, READ THE INSTRUC-

TIONS. TO REDUCE RISK

OF ELECTRICAL SHOCK

SEE INSTRUCTIONS FOR

PROPER INSTALLATION.

CAUTION

FOR SUPPLY CONNECTIONS

USE WIRE SUITABLE FOR AT

LEAST 90°C. USE COPPER

CONDUCTORS ONLY.

EMPLOYER DES FILS

’

ALIMENTATION ADEQUATS

POUR 90°C. FOR INDOOR USE

ONLY. EMPLOYER UNIQUE-

MENT A L’INTERIEUR.

FIG. 1

P48405

C US

LISTED

WARNING

RISK OF ELECTRIC SHOCK;

THIS PUMP HAS NOT

BEEN INVESTIGATED FOR

USE IN SWIMMING POOL

AND MARINE AREAS.

-NONSUBMERSIBLE PUMP-

P86313

INSTRUCTION MANUAL

P81884G

Summary of content (4 pages)

PAGE 1
INSTRUCTION MANUAL P81884G UL C ® US ® LISTED P L™ Booster Pumps INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE. SAFETY INSTRUCTIONS This safety alert symbol will be used in this manual and on the pump safety instructions decal to draw attention to safety related instructions. When used, the safety alert symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED! FAILURE TO FOLLOW THE INSTRUCTIONS MAY RESULT IN A SAFETY HAZARD.
PAGE 2
SAFETY REQUIREMENTS MECHANICAL SAFETY ELECTRICAL SAFETY WARNING: EXCESSIVE SYSTEM PRESSURE HAZARD The maximum working pressure of the pump is listed on the nameplate – DO NOT EXCEED THIS PRESSURE. Failure to follow these instructions could result in serious personal injury, death and/or property damage. WARNING: ELECTRICAL SHOCK HAZARD Electrical connections are to be made by a qualified electrician in accordance with all applicable codes, ordinances and good practices.
PAGE 3
SAFETY REQUIREMENTS MECHANICAL SAFETY ELECTRICAL SAFETY WARNING: EXCESSIVE SYSTEM PRESSURE HAZARD The maximum working pressure of the pump is listed on the nameplate – DO NOT EXCEED THIS PRESSURE. Failure to follow these instructions could result in serious personal injury, death and/or property damage. WARNING: ELECTRICAL SHOCK HAZARD Electrical connections are to be made by a qualified electrician in accordance with all applicable codes, ordinances and good practices.
PAGE 4
CONDUIT BOX SHAFT SLEEVE SEAL COMPONENTS PUMP BODY BODY GASKET COVER PLATE ASM REAR BEARING IMPELLER ASM W/THREADED HUB SEAL CUP SEAL SEAT SEAL SPRING O-RING BACKUP RING SEAL ASM FRONT BEARING SHAFT/ROTOR ASM CARBON SEAL HEAD SEAL CAGE Packaged together as an assembly HOUSING/STATOR ASM FIG. 5 INSTRUCTIONS FOR REPAIRING MECHANICAL SEAL 11. Follow steps 1 through 4 of section titled “REMOVAL OF PUMP FROM EXISTING SYSTEM FOR REPLACEMENT.” 12.