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NRF
-25, 36,45 / NBF
Installation, Operation & Service Instructions
INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER'S USE.
NOTE: Bell & Gossett recommends Bronze or Stainless Steel
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 Instruction 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 NRF/NBF Booster Pump should have the warning/caution
labels displayed to the right (Fig. 1) on the pump conduit box. If
the warning and caution labels are missing or illegible, contact
your local B&G Representative for a replacement.
DESCRIPTION
The Model NRF/NBF Circulator Pump features system liquid lubri-
cated bearings, non-overloading permanent split capacitor motor
with thermal, or impedance protection and quiet operation.
PUMP APPLICATION
The Model NRF/NBF Booster Pump may be used for water
circulating applications in hydronic and solar systems.
It has not been investigated, nor is it intended for use in swim-
ming pool and marine areas.
Bell & Gossett
Instruction Manual P86203C
™
-25, 36,45 Circulator
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
D'ALIMENTATION ADEQUATS
POUR 90°C. FOR INDOOR USE
ONLY. EMPLOYER UNIQUE-
MENT A L'INTERIEUR.
OPERATIONAL LIMITS
These pumps are designed to pump liquids compatible with
their iron or bronze body constructions.
Maximum Operating Pressure: 150 PSI (10 bars)
Maximum Operating Temperature: 225°F (107°C)
Electrical Rating: 115V, 60Hz, 1Ø; 230V, 60Hz, 1Ø
U L
C
US
®
LISTED
WARNING
RISK OF ELECTRIC SHOCK;
THIS PUMP HAS NOT
BEEN INVESTIGATED FOR
USE IN SWIMMING POOL
AND MARINE AREAS.
-NONSUBMERSIBLE PUMP-
FIG. 1
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Related Manuals for Bell and Gossett NRF-25
Summary of Contents for Bell and Gossett NRF-25
- Page 1 Bell & Gossett Instruction Manual P86203C ® LISTED ™ ™ -25, 36,45 / NBF -25, 36,45 Circulator Installation, Operation & Service Instructions INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE. NOTE: Bell & Gossett recommends Bronze or Stainless Steel Booster Pumps be used for pumping potable water.
-
Page 2: Pump Installation
SAFETY REQUIREMENTS MECHANICAL SAFETY ELECTRICAL SAFETY WARNING: EXCESSIVE SYSTEM WARNING: ELECTRICAL SHOCK HAZARD PRESSURE HAZARD Electrical connections are to be made by a qualified The maximum working pressure of the pump is listed on electrician in accordance with all applicable codes, the nameplate –... -
Page 3: Wiring Instructions
WARNING: HOT WATER HAZARD WARNING: ELECTRICAL SHOCK HAZARD When disassembling a gasketed joint, always use a Disconnect and lock out the power before making new gasket upon reassembly. NEVER RE-USE OLD electrical connections. Failure to follow these instructions GASKETS. Failure to follow these instructions could result could result in serious personal injury or death. - Page 4 (m3/hr) (l/s) (l/s) PERFORMANCE CHARACTERISTIC CURVE PERFORMANCE CHARACTERISTIC CURVE (kPa) (M) (FT) CENTRIFUGAL PUMP SERIES NRF-25 WITH CHECK VALVE CENTRIFUGAL PUMP SERIES NRF-36 (kPa) (M) (FT) CENTRIFUGAL PUMP SERIES NRF-25 WITHOUT CHECK VALVE CENTRIFUGAL PUMP SERIES NRF-36 SPEED 3 SPEED 3...
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