Bell & Gossett LD3, HD3, PD35, PD37 Instruction Manual
Booster Pumps
INSTRUCTIONS FOR THE
FOLLOWING B&G PRODUCTS:
21/2", LD3, HD3, PD35, PD37, 1HP & 11/2HP
INSTRUCTION MANUAL
P76966F
INSTALLER:
PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE.
DESCRIPTION
or applications requiring higher flow and head pressures, Bell
F
& Gossett provides an entire range of booster pumps. The
designs of these pumps are based on three-part configuration
which offers complete field repairability and compact construction. All Bell & Gossett boosters are equipped with the
incomparable B&G manufactured motor for quiet and efficient
operation.
These pumps are for indoor use only.
This product can expose you to chemicals including
Lead, which is know to the State of California to cause
cancer and birth defects or other reproductive harm.
For more information go to:
www.P65Warnings.ca.gov.
PUMP APPLICATION
Bell & Gossett Booster Pumps may be used for hydronic heating and cooling systems, domestic water, industrial applications and general service operations. Bell & Gossett recommends that bronze constructed pumps be used for pumping
potable water.
OPERATIONAL LIMITS
These pumps are designed to pump liquids compatible with
their iron or bronze body construction. This pump line delivers
maximum capacities from 100 GPM to 150 GPM. Unless special provisions have been made by Bell & Gossett, the
operational limits for Series 21/2", LD3, HD3, PD35, PD37,
PD38 & PD40 Pumps are listed below.
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.
WARNING
BEFORE INSTALLING, USING OR
SERVICING THIS PRODUCT,
READ THE WARNING NOTES
AND INSTRUCTIONS IN
INSTRUCTION MANUAL.
FAILURE TO DO SO MAY
RESULT IN SERIOUS INJURY
OR PROPERTY DAMAGE
V56845
Your Booster Pump should have this warning label affixed to
the pump near the conduit box cover. If this warning is
missing or illegible, contact your local Bell & Gossett
Representative for a replacement.
Max. Working Pressure: 125 psi
Max. Operating Temperature: 225°F
Electrical Rating: 115/230V, 60 Hz, 1PH
1
(
/4 HP only) 115V or 230V, 60 Hz, 1PH
Motors with special electrical characteristics are available on
request. Contact your local Bell & Gossett Representative for
details.
208-230/460V, 60 Hz, 3PH
ELECTRICAL SAFETYMECHANICAL 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: EXCESSIVE PRESSURE HAZARD –
VOLUMETRIC EXPANSION
The heating of water and other fluids causes volumetric
expansion. The associated forces may cause failure of system components and the release of high temperature fluids.
This can be prevented by installing properly sized and
located compression tanks and pressure relief valves.
Failure to follow these instructions could result in serious
personal injury, death and/or property damage.
WARNING: EXTREME TEMPERATURE HAZARD
If the pump, motor or piping are operating at extremely
high or low temperature, guarding or insulation is required.
Failure to follow these instructions could result in serious
personal injury, death and/or property damage.
THERMAL SAFETY
WARNING: ELECTRICAL GROUNDING HAZARD
Adequate electrical grounding is required for the safe
operation of B&G Pumps. The use of grounded metal conduit assures this requirement. If the means of connection to
the supply-connection box (wiring compartment) is other
than grounded metal conduit, ground the pump back to the
service by connecting a copper conductor at least the size
of the circuit conductors supplying the pump to the green
grounding screw provided within the wiring compartment.
Failure to follow these instructions could result in serious
personal injury, death and/or property damage.
WARNING: ELECTRICAL SHOCK HAZARD
Disconnect and lockout the power before servicing.
Failure to follow these instructions could result in serious
personal injury or death.
REMOVAL OF THE PUMP FROM EXISTING SYSTEM FOR REPLACEMENT
1. Close the valves on the suction and discharge sides of
the pump. If no valves have been installed, it may be necessary to drain the system.
WARNING: HOT WATER HAZARD
Before draining the system, allow water to cool to
100°F max., open the drain valve (take precautions against
water damage) and leave the drain valve open until servicing is complete. Failure to follow these instructions could
result in serious personal injury, death and/or property
damage.
WARNING: ELECTRICAL SHOCK HAZARD
Be certain the electrical power is not present at the
motor leads before continuing. Failure to follow these instructions could result in serious personal injury or death.
2. Loosen the conduit box cover screw and remove the cover.
3. Disconnect the electrical supply lines to the pump
.
WARNING: HIGH PRESSURE HAZARD
Pressure may be present in the pump body. This
pressure can be relieved by loosening the flange bolts and
shifting the pump assembly slightly to allow the pressurized water to escape. Failure to follow these instructions
could result in serious personal injury or death.
4. Remove the flange bolts and nuts and then remove the
pump from the piping.
WARNING: ELECTRICAL SHOCK HAZARD
Electrical connections are to be made by a qualified
electrician in accordance with all applicable codes, ordinances and good practices. Failure to follow these instructions could result in serious personal injury, death and/or
property damage.
SAFETY REQUIREMENTS
WARNING: ELECTRICAL OVERLOAD HAZARD
Three phase motors must have properly sized
heaters to provide overload and under voltage protection.
Single phase motors have built-in overload protectors.
Failure to follow these instructions could result in serious
personal injury, death and/or property damage.
2
WARNING: HOT WATER HAZARD
When disassembling a gasketed joint, always use a
new gasket upon reassembly. NEVER REUSE OLD GASKETS. Failure to follow these instructions could result in
serious personal injury, death and/or property damage.
WARNING: UNEXPECTED START-UP HAZARD
Single phase motors are equipped with automatic
reset overload protectors. The pump can restart without
warning. Disconnect and lockout power before servicing.
Failure to follow these instructions could result in serious
personal injury, death and/or property damage.
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