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WWW.MDMINC.COM
Reliable. Efficient.
PROUDLY MADE
IN THE USA
®
750
We congratulate you on your choice of the Sequence
®
750 centrifugal pump. Its leading edge design provides you with high output at a minimal operating cost. It
is carefully constructed to give you long term, reliable service. To insure proper performance, we urge you to carefully follow the instructions in this manual. If you
have any questions, please call your supplier for assistance or visit www.mdminc.com/support.
INSTALLATION
Please read carefully. When properly installed, the Sequence
®
750 will provide dependable, trouble-free service.
1. Do not submerse the unit in water - it is not a submersible pump. Do not allow the pump to become submerged during transient periods, such as heavy rain, run-off, etc.
2. Locate the pump as near the water source as possible. A flooded suction is preferred.
3. The pump is not self-priming. Therefore, if the fluid level is below the pump, a swing check valve must be installed below water level. The pump and inlet line
must be primed prior to start up. A strainer basket is recommended for non-flooded installations.
4. Mount the motor base to a secure, immobile foundation.
5. Use only plastic fittings on both the inlet and discharge ports. Seal the inlet and discharge fittings with Teflon
®
pipe dope. These fittings should be self-
supported and in neutral alignment with each port (i.e., Fittings must not be forced into port alignment which may cause premature line failure or damage to
the pump volute).
6. Never restrict the inlet. Keep both inlet and discharge lines as free of elbows and valves as possible. Always use pipe of adequate diameter. This will reduce
friction losses and maximize output. Never use an inlet line of smaller diameter than the discharge line. Minimize the suction lift.
ELECTRICAL HOOK-UP
Carefully examine the power cord before use. Do not use this power cord if there is any visible damage. Do not use this power cord in water or if the motor or
electrical receptacle is in contact with any standing water. This power cord should only be plugged into a properly installed 115 VAC GFI receptacle. Always test
cycle a GFI receptacle to determine its condition before use.
PUMP
PUMP
BALL VAL
BALL VALVE
VE
BALL VA
BALL VALV
LVEE
SUCTION LIFT
SUCTION LIFT
FLOODED SUCTION
FLOODED SUCTION
SWING CHECK VA
SWING CHECK VALV
LVEE
P.2
WARNING: DO NOT RUN DRY
WARNING: ALWAYS SHUT OFF ELECTRICAL POWER BEFORE INSTALLATION AND / OR SERVICING THIS PUMP.
ALL ELECTRICAL WIRING SHOULD MEET STATE AND LOCAL ORDINANCES. THE SEQUENCE
®
750 PUMP MOTOR IS DESIGNED FOR
115 VAC 60HZ POWER ONLY. 230V 50HZ MOTORS ARE AVAILABLE. CONTACT YOUR SUPPLIER FOR INFORMATION.
