Little Giant CMD-100-3B User manual

INTRODUCTION
The Little Giant pumps are carefully packaged, inspected and tested to insure safe operation and delivery. When you re-
ceive your pump, examine it carefully to determine that there are no broken or damaged parts that may have occurred
during shipment. If damage has occurred, make notation and notify the firm from which you purchased the pump. They
will assist you in replacement or repair of the pump.
CMD SERIES
The CMD Series of pumps have been specifically designed for solar heat recirculation, domestic and commercial hot
water loops. The CMD pumps are efficient brass booster pumps designed for water loops handling pressures to 150° PSI.
Both the -3B and -5B can be used on all types of domestic solar and hydronic recirculation applications for residences,
apartments or commercial usage. Pumps have brass volute, Ryton®impeller with exclusive nylon magnet design that will
handle fluid temperatures to 212° F. Pumps have ½" MNPT connections and the volute can be rotated 90° intervals. The
design permits servicing of motor without losing liquids or draining system. For use in nonflammable liquids compatible
with pump component material.
SAFETY GUIDELINES
1. CAUTION: To reduce the risk of electric shock, disconnect motor from power source before servicing the pump.
2. Read all instructions and safety guidelines thoroughly. Failure to follow the guidelines and instructions could result in
serious bodily injury and/or property damage.
3. Do not pump flammable liquids such as gasoline or fuel oil.
4. During operation, the area around the pump may be covered with water. Take care when handling the pump. Do not
disconnect plumbing connections when pump is in operation.
5. Do not stand in water when changing fuses.
LITTLE GIANT CIRCULATOR PUMP®
Little
Pump Company
GIANT
·ASSEMBLY
·INSTALLATION
·OPERATION
·REPAIR PARTS
·SAFETY
CMD-100-3B CMD-100-5B
OWNER'S MANUAL
FOR
CMD-100-3B
CMD-100-5B
CMD-100-5BY
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ELECTRICAL CONNECTIONS
1. If the pump is supplied with a three prong electrical plug, the third prong is to ground the motor to prevent possible
electrical shock hazard. Do not remove the third prong from the plug. The receptacle should be the three prong
polarized type with an internal ground. A separate branch circuit is recommended. Do not use an extension cord.
Do not cut plug from cord, this will void the warranty.
2. If the motor has either individual lead wires and conduit connection box, or power cord with stripped lead wires, be
sure that the wires are connected to proper power supply source. Use the conduit box on motor (if applicable) to
connect conduit pipe to protect individual lead wires. Color code will either be: black: (live) white (common)
green (ground) or brown (live) blue (common) green/yellow (ground).
IMPORTANT – Read pump label for correct voltage of pump motor. Make sure proper voltage is supplied to motor.
SERVICE
Very little service is required by the CMD-100 pumps. Sleeve bearing motors require lubrication once a year at the begin-
ning of the season using an SAE 20 weight non detergent oil. If the pump is to be used year round; it should be oiled
every six months. Do not over oil. Three or four drops should be sufficient. No lubrication is necessary for ball bearing mo-
tor models. Position motor so oiler tubes are located on upper portion of motor.
The circulator pump is comprised of two main sections, (1) the pumping head and (2) the drive motor. The pumping head
includes: the volute, thrust bearing, impeller shaft, o-ring seal, impeller assembly, stainless steel backplate and housing.
The drive motor includes the motor and the drive magnet assembly. To separate the two sections, remove the three
screws which attach the pump head to the motor. Only three screws have been used by the factory to permit easy assem-
bly and disassembly. Liquid will still be contained on the pumping head, and will not be drained unless you loosen the four
screws that attach the brass volute to the housing. The pump head must be realigned on the motor drive assembly before
the pump is put back into service.
SPECIFICATIONS
Catalog No. Model No.
Flow
@ 1 Ft.
(GPM)
Max.
Head
(Ft.)
Max.
PSI
Inlet/
Outlet
(MNPT)
Imp.
Dia.
Motor Data Wt.
Total
(Lbs.)
Volts Hertz RPM Phase HP Watts Amps
579000 CMD-100-3B 3 4.0 1.73 1/2" 2.00" 115 60 1550 1 1/125 35 .43 4.8
579200 CMD-100-5B 6.2 12.0 5.2 1/2" 1.69" 115 60 3000 1 1/25 81 .60 6.5
CMD-100-5B
CMD-100-3B
·1550 RPM MOTOR
·BRASS PUMP HEAD
·CONDUIT BOX
·DUAL FAN
·15" LEAD WIRES
·3000 RPM MOTOR
·BRASS PUMP HEAD
·BASE BRACKET
·DUAL FAN
·6 FT. SJT CORD ON 115V
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OVERALL DIMENSIONS
LITTLE GIANT WARRANTY STATEMENT
Your Little Giant product is guaranteed to be in perfect condition when it leaves our Factory. It is warranted against defective materials and
workmanship for a period of 12 months (90 day warranty on Models: 1-AA-OM, GKPK-SC, PP-1, PPS-1, PP-12, PPS-12 , PP-230 and Cooler King)
from date of purchase by the user. No warranty on brush wear in Model 35-OM and impeller or cam in Models PP-1, PP-12, and PP-230. Any
product that should fail for either of the above two reasons and is still within the warranty period will be repaired or replaced if returned prepaid to our
Factory. All defective products returned under warranty will be fully inspected to determine "CAUSE OF FAILURE" before any warranty is approved.
Little Giant will honor the warranty within the warranty time period specified on satisfactory written proof of purchase.
DISCLAIMER: Any oral statements about the product made by the seller, the manufacturer, the representatives or any other parties, do not constitute
warranties, shall not be relied upon by the user, and are not part of the contract for sale. Seller’s and manufacturer’s only obligation, and buyer’s only remedy,
shall be the replacement and/or repair by the manufacturer of the product as described above. Neither seller nor the manufacturer shall be liable for any injury,
loss or damage, direct, incidental or consequential (including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or
property, or any other incidental or consequential loss), arising out of the use or the inability to use the product, and the user agrees that no other remedy shall
be available to it. Before using, the user shall determine the suitability of the product for his intended use, and user assumes all risk of liability whatsoever in
connection therewith. The warranty and remedy described in this limited warranty is an EXCLUSIVE warranty and remedy and is IN LIEU OF any other
warranty or remedy, expressed or implied, which other warranties and remedies are hereby expressly EXCLUDED, including but not limited to any implied
warranty of MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow the exclusive or limitation of incidental or
consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other
rights which vary from state to state.
Warranty will be VOID if any of the following conditions are found:
1. Sealed motor housing opened.
2. Product connected to voltage other than indicated on name plate.
3. Cord cut off to a length less than three feet.
4. Pump allowed to operate dry (fluid supply cut off).
5. Pump used to circulate anything other than fresh water, light oils, or other mild liquids at approximately room temperature.
6. Product abuse by customer.
The National Electric Code requires a Ground Fault Circuit Interrupter (GFCI) be installed in the branch circuit supplying fountain
equipment rated above 15 volts. Part number 599335, GCI-1, is in stock and we recommend each pump be used with a GCI.
LIMITED
WARRANTY
LIMITED
WARRANTY KEEP THIS FOLDER
File this for safe keeping. It may be valuable to you for service
under the term of the warranty.
Date of Purchase _______________________________________
Name of Dealer ________________________________________
Little Pump Company
GIANT
Little Giant Pump Company
P.O. Box 12010
Oklahoma City, OK 73157-2010
[phone] • Fax: [phone]
TOTAL HEAD IN FEET
CAPACITY IN U.S. GALLONS PER MINUTE
PUMP PERFORMANCE CURVE*
CMD-100 SERIES
115 VOLTS, AC 60 HZ.
A = CMD-100-3B
B = CMD-100-5B
*Pumping Room Temperature (23° C) water
For Replacement Parts, contact:
Grainger Parts
1657 Shermer Road
North Brook, IL 60062-5362
Phone: [phone]
Fax: [phone]
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PARTS LIST MODEL & CATALOG NO.
ITEM NO. PART NO. DESCRIPTION CMD-100-3B CMD-100-5B
1 977441 MOTOR, 115V l
1 977448 MOTOR, 115V l
2 179002 VOLUTE, BRASS ll
3 179030 HOUSING ll
4 179010 BACKPLATE ll
5 179040 DRIVE MAG. ASS’Y ll
6 179021 IMPELLER ASS’Y l
6 179028 IMPELLER ASS’Y l
7 179023 SHAFT, IMPELLER ll
8 921094 BEARING, THRUST ll
9 924031 O-RING ll
10 901430 SCREW, 8-32 X 1 1/4“LG 44
11 901424 SCREW, 8-32 X 1/2" LG 33
12 921059 WASHER, LOCK #8 77
LITTLE GIANT PUMP COMPANY
Telephone [phone] l3810 N. Tulsa St. lOklahoma City, OK 73112
©Copyright 2003 Little Giant Pump Company Form #993149 – 12/03:
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