Bell & Gossett DN0141D User Manual
Domestic® Pump
2’ NPSH Horizontal Pumps
INSTRUCTION MANUAL
DN0141
REVISION D
Series HB17,™ HB35,™ DB,™ DB-F
™
SERIES DB
INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE.
SERIES DBF
SAFETY
INSTRUCTIONS
This safety alert symbol will be used in this manual and on
the unit safety instruction decals to draw attention to safety
related instructions. When used, the safety alert symbol means
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT
IN A SAFETY HAZARD.
WARNING
ROTATING COMPONENTS
DISCONNECT AND LOCK OUT
POWER BEFORE SERVICING.
DO NOT OPERATE WITHOUT
ALL GUARDS IN PLACE.
CONSULT INSTALLATION
AND SERVICE INSTRUCTION
SHEET BEFORE OPERATING
OR SERVICING.
FAILURE TO FOLLOW
INSTRUCTIONS COULD
RESULT IN INJURY
OR DEATH.
P70642
WARNING
EYEBOLTS OR LIFTING
LUGS IF PROVIDED ARE
FOR LIFTING ONLY THE
COMPONENTS TO WHICH
THEY ARE ATTACHED.
FAILURE TO FOLLOW
INSTRUCTIONS COULD
RESULT IN INJURY
OR DEATH.
P70643
CAUTION
DO NOT RUN PUMP DRY,
SEAL DAMAGE MAY OCCUR.
INSPECT PUMP SEAL
REGULARLY FOR LEAKS,
REPLACE AS REQUIRED.
FOR LUBRICATION
REQUIREMENTS, CONSULT
SERVICE INSTRUCTIONS.
FAILURE TO FOLLOW
INSTRUCTIONS COULD
RESULT IN INJURY OR
PROPERTY DAMAGE.
P70644
If the decals as noted below are missing or are illegible contact
your local B&G representative for a replacement.
1. Electrical connections to be made by qualified Electrician in
accordance with all National, State and Local codes.
2. Motor must have properly sized starter with properly sized
heaters to provide overload and undervoltage protection.
3. If pump, motor or piping are operating at extremely high or
low temperatures, guarding or insulation is required.
4. Operating personnel should be trained in the operation of
pumps and associated systems (condensate, boiler feed, etc.).
TM
SERIES
MODEL
SERIAL
GPM PSI PUMP
CFM IN HG. PUMP
DWGS
POWER V. PH. HZ60
CONTROL V. PH. 1 HZ60
TOTAL LARGEST MOTOR
F.L. AMP F.L. AMP
DN0016
TM
Morton Grove, Illinois 60053
DOMESTIC® PUMPS
SERIES
SERIAL
DN0024
TM
GPM
PSI
Morton Grove, Illinois 60053
®
DESCRIPTION
FOUNDATION BOLT
PIPE SLEEVE
WASHER
BUILT-UP
CONCRETE FOUNDATION
These horizontal end suction pumps feature a flow inducing
propeller and one or two impellers in series. These pumps
are supplied with or without mounting base (except for the
DB-F which requires a mounting base). All pumps are constructed with mechanical seals intended for high temperature
operations.
All models are bronze fitted with replaceable bronze wear rings.
APPLICATION
The 2' NPSHR rating of these pumps makes them uniquely
suited to pumping hot water. With 2 feet of static suction head,
the pumps will pump boiling water. Typical applications are on
condensate return and boiler feed systems.
These pumps are also well suited for general pumping service
of benign liquids.
WARNING: EXPLOSIBLE
Maximum suction pressure is 35 psi unless otherwise
specified by manufacturer. Do not exceed this pressure.
Failure to follow these instructions could result in serious
injury or death.
PRELIMINARY INSPECTION
Assure that there is no shipping damage.
Assure that nameplate ratings agree with job specifications and
actual conditions.
LOCATION
The best pump location for sound and vibration absorption
is on a concrete floor with sub soil underneath. If the pump
location is overhead, special precautions should be undertaken to reduce possible sound transmission, consult a sound
specialist.
If the pump is not installed on a closed system, it should be
placed as near as possible to the source of the liquid supply,
and located to permit installation with the fewest number of
bends or elbows in the suction pipe.
The installation must be evaluated to determine that the Net
Positive Suction Head Available (NPSHA) meets or exceeds the
Net Positive Suction Head Required (NPSHR) as stated by the
pump performance curve.
INSTALLATION
This pump is built to provide years of service if installed properly and attached to a suitable foundation. A base of concrete
weighing 21/2 times the weight of the pump is recommended.
(Check the shipping ticket for pump weight.)
If possible, tie the concrete pad in with the finished floor. Retain
access to pump mounting screws of DB-F pumps.
CAUTION: NOT A CHEMICAL PUMP
Inject boiler feed compounds from chemical feed tank
into boiler feed piping – never into pump suction. Failure to
follow these instructions could result in injury or property
damage.
PUMP LOCATION
Locate the pump so there is sufficient room for inspection,
maintenance and service. If the use of a hoist or tackle is
needed, allow ample head room.
WARNING: Eyebolts or lifting lugs if provided are for
lifting only the components to which they are
attached. If lifting of the entire pump is required, do so with
slings placed under the pump assembly as shown. Failure
to follow these instructions could result in injury or death.
To facilitate easy servicing, some type of expansion fitting
should be utilized. The female portion should be inserted into a
suitable hole in the floor so that its top surface is flush with the
floor surface. Thus, when the hold-down bolts are removed,
the motor can be removed by sliding it back from the pump.
(See below.)
2
LEVELING
NOTE:
TO KEEP SHIMS IN PLACE
ALLOW NON-SHRINKING
GROUT TO FLOW AROUND
HOLD DOWN LUGS
ALLOW 1" FOR SHIMS.
PLACE ON BOTH SIDES
OF ANCHOR BOLTS
APPROX.
1" GAP
GROUT ONLY TO
TOP OF BASE RAIL
PUMP BASE RAIL
CONCRETE FOUNDATION
GROUT
PUMP BASE
STRAIGHT EDGE
.015 MAX
DISTANCES ACROSS
COUPLER FLANGES
SHOULD BE EQUAL
(CHECK 4 PLACES)
Place the pump on its concrete foundation supporting it with
steel wedges or shims totaling 1" in thickness. These wedges
or shims should be put on both sides of each anchor-bolt to
provide a means of leveling the base. (See below.)
IT IS VERY IMPORTANT THAT THE PUMP-BASE BE SET
LEVEL TO AVOID ANY MECHANICAL DIFFICULTIES WITH
THE MOTOR OR PUMP. THIS PUMP WAS PROPERLY
ALIGNED (IF FURNISHED WITH A MOTOR) AT THE FACTORY.
LEVELING OF PUMP BASE
ON CONCRETE FOUNDATION
HOWEVER, SINCE ALL PUMP BASES ARE FLEXIBLE THEY
MAY SPRING AND TWIST DURING SHIPMENT. DON’T PIPE
THE PUMP UNTIL IT IS REALIGNED. AFTER PIPING IS
COMPLETED AND AFTER THE PUMP IS GROUTED IN AND
BOLTED-DOWN, ALIGN IT AGAIN. IT MAY BE NECESSARY
TO RE-ADJUST THE ALIGNMENT FROM TIME TO TIME
WHILE THE UNIT AND FOUNDATION ARE NEW.
FLEXIBLE COUPLING ALIGNMENT
(SERIES DB-F PUMPS ONLY)
Check parallel alignment by placing a straight edge across the
two coupling flanges and measuring the maximum offset at
various points around the periphery of the coupling. DO NOT
rotate the coupling. If the maximum offset exceeds the .015,
realign the coupling.
Check angular alignment with a micrometer or caliper. Measure
from the outside of one flange to the outside of the other at
intervals around the periphery of the coupling. DO NOT rotate
the coupling. The difference between the maximum and minimum must not exceed .056".
If a correction is necessary, be sure to recheck the parallel
alignment.
(Note: For maximum life, keep misalignment values as near to
zero as possible.)
If the coupling employs the two-piece sleeve with the wire ring,
force the ring into its groove in the center of the sleeve. It
may be necessary to pry the ring into position with a blunt
screwdriver.
All alignment should be done by moving or shimming the motor
only. Adjustments in one direction may alter alignment in
another. Therefore, check alignment in all directions after a correction is made.
If couplings are to operate at speeds higher than 1800 RPM,
greater accuracy of shaft alignment will be required. A dial indicator should then be used.
CHECK PARALLEL ALIGNMENT
ANGULAR ALIGNMENT CHECK
3
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