© MDM INC.
WWW.MDMINC.COM
Efficiency and Longevity.
PROUDLY MADE
IN THE USA
© MDM INC.
WWW.MDMINC.COM
Efficiency and Longevity.
PROUDLY MADE
IN THE USA
INSTALLATION AND SERVICE MANUAL
TYPE:
SELF PRIMING CENTRIFUGAL
MOTOR:
NEMA 56Y
HORSEPOWER:
1/3, 1/2 (1750 RPM) 2 (3450 RPM)
PRIMER ALPHA:
2” FNPT INLET AND DISCHARGE WITH 2” & 2 1/2” SLIP ADAPTERS
PRIMER CHAMPION:
2” FNPT INLET AND DISCHARGE WITH 2” SLIP ADAPTERS
MATERIAL:
GLASS-FILLED POLYPROPYLENE
HARDWARE:
STAINLESS STEEL HARDWARE
OPTIONS:
SALTWATER SERVICE
ACCESORIES:
SWING CHECK VALVES (1.5”, 2”, 3”)
WARNING:
Please read completely before you install or operate your new pump. This is an external “out-of-pond” pump.
It is NOT submersible. Do NOT allow this pump to become submerged. Never run dry.
Model
3700PRM21 4900PRM21 6600PRM24 6800PRM19
7800PRM24
6300PRM77
8100PRM81
9300PRM83
INLET
2”
2”
2”
2”
2”
2”
2”
2”
DISCHARGE
2”
2”
2”
2”
2”
2”
2”
2”
MAX FLOW (gph)
3700
4900
6600
6800
7800
6300
8100
9300
MAX HEAD (feet)
21’
21’
24’
19’
24’
77’
81’
83”
MAX POWER (watts)
228
310
457
369
504
1496
1807
2222
MAX CURRENT (amps)
2.76 @115V
3.37 @115V 4.61 @115V 3.93 @115V
5.02 @115V
8.7 @ 230
9.8 @ 230
11.4 @ 230
VOLTS
115/230
115/230
115/230
115/230
115/230
230 /115
230 /115
230 /115
MOTOR HP
1/2, 1/3
1/2, 1/3
1/2, 1/3
1/2, 1/3
1/2, 1/3
2
2
2
MOTOR TYPE
56Y
56Y
56Y
56Y
56Y
56Y
56Y
56Y
MOTOR ENCLOSURE
TEFC
TEFC
TEFC
TEFC
TEFC
ODP
ODP
ODP
®
PRIMER
®
PRIMER
MAINTENANCE WARNING: EYE PROTECTION IS STRONGLY RECOMMENED
Lubrication
Motor - Permanently Lubricated ball bearings - no service required.
Rotary Seal - Requires no lubrication after assembly.
Symptom
Problem
Resolution
No Flow
Insufficient Prime
Prime system with water and purge all air from suction piping.
Install check valve.
Insufficient Power
Verify power supply and connection from panel to pump.
Verify proper voltage. Some models are dual voltage (115/230).
Flow Restriction
Ensure valves are open.
Ensure plumbing is clear, including suction strainers, check valves, etc.
Verify check valve orientation and direction of permitted flow.
Clean out leaves or other debris from basket strainer (if applicable).
Insufficient Prime
Prime system with water and purge all air from suction piping. The primer series pumps use low
RPM motors and achieving full system prime could take multiple hours.
*This resolution pertains
only to the Primer Champion and the Primer Alpha models.
Air leak
Fix air leaks at fittings, connections, priming pot lid, etc. This typically occurs on the intake side.
The priming pot lid o-ring can be lubricated with silicone grease.
System Incompatibility
Verify hydraulic compatibility: i.e. pump & pipe are sized for the system.
Low Flow
Air leak
Fix air leaks at fittings, connections, priming pot lid, etc. This typically occurs on the intake side.
The priming pot lid o-ring can be lubricated with silicone grease.
System Incompatibility
Verify hydraulic compatibility: i.e. pump & pipe are sized for the system.
Insufficient Power
Verify power supply and connection from panel to pump.
Verify proper voltage. Some models are dual voltage (115/230).
Flow Restriction
Ensure valves are open.
Ensure plumbing is clear, including suction strainers, check valves, etc.
Clean out leaves or other debris from basket strainer (if applicable).
Insufficient Prime
Prime system with water and purge all air from suction piping.
Cavitation
Verify airtight plumbing on the suction plumbing especially fittings.
Clean out leaves or other debris from basket strainer (if applicable).
Increase pipe size where possible.
Decrease suction pipe length, reduce the number of elbows, etc.
Verify hydraulic compatibility: i.e. pump and pipe are sized for the system.
Sporadic Operation
Insufficient Power
Verify power supply and connection from panel to pump.
Verify proper voltage. Some models are dual voltage (115/230).
Poor Ventilation
Ensure adequate aiflow over motor to prevent overheating.
Excessive Noise
Cavitation
Verify airtight plumbing on the suction plumbing especially fittings.
Clean out leaves or other debris from basket strainer (if applicable).
Increase pipe size where possible.
Decrease suction pipe length, reduce the number of elbows, etc.
Verify hydraulic compatibility: i.e. pump and pipe are sized for the system.
Insufficient Power
Verify power supply and connection from panel to pump.
Verify proper voltage. Some models are dual voltage (115/230).
Flow Restriction
Ensure valves are open.
Ensure plumbing is clear, including suction strainers, check valves, etc.
Verify check valve orientation and direction of permitted flow.
PRIMER ALPHA
PRIMER CHAMPION
S/N: XXXX-XXXXXX
XXXXPRMXX
PRIMER CHAMPION
PRIMER ALPHA
PRIMER POWER
Gasgacinch
®
is a registered trademark of Porter Manufacturing. Noryl
®
is a registered trademark of the General
Electric Company. Teflon
®
is a registered trademark of DuPont Company. Sequence
®
is a registered trademark of
MDM Incorporated.
Compilation Installation Manual 2017.indd Adobe Indesign CC 03-28-17
PLEASE FILL IN FOR FUTURE REFERENCE:
MODEL:
___________________________
SERIAL NUMBER:
____________________
DATE PURCHASED:
___________________
* PLEASE FILL OUT THE WARRANTY REGISTRATION
CARD INCLUDED WITH THIS PRODUCT OR ONLINE
AT: WWW.MDMINC.COM
*The pump must be drained before servicing or if stored below freezing
temperatures. Periodic replacement of seals may be required due to normal
carbon wear.
MDM INCORPORATED
3345 N. Cascade Ave • Colorado Springs, CO • 80907
Toll Free Phone (800) 447-8342 • Fax (866) 425-1346
www.mdminc.com • [email protected]
