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056255661 (02-01-22)
A full flow (ball or gate) shut off valve must be installed to
prevent back flow of effluent if the pump must be removed for
service. A check valve must be installed on pressure sewer
systems and on other systems where conditions allow to
prevent backflow and to reduce wear on the pump system.
A high water alarm must be installed on a separate circuit from
the pump circuit. The alarm should have the ability to be tested
for proper operation.
SPECIAL INSTRUCTIONS FOR THREE PHASE PUMPS
1. Hydromatic recommends three phase pumps to be installed
by qualified personnel.
2.
Risk of electric shock.
Do not remove cord and
strain relief. Do not connect conduit to pump.
3. Three phase pumps are always installed with control boxes
having magnetic starters with 3 leg overload protection. DO
NOT TRY TO RUN THREE PHASE PUMPS DIRECTLY ACROSS
THE LINE.
4. To Connect Pump:
Run wire from pump to the bottom
of control box or appropriate junction box suitable for
enclosing splice connections. A hole must be cut into the
control box for the wires. With power to control box off,
connect green (ground) line to ground lug. Connect black
(power) wires to power lead terminals.Note: for a typical CE
style control box, these terminals are marked M1, M2 and
M3. Make sure that all wires are inside control box and not in
a position to be pinched or shorted when the door is closed.
5. All three phase motors can run either direction. ROTATION
can be changed by interchanging any two line leads at
magnetic starter. BE SURE CIRCUIT BREAKER IS OFF
BEFORE MAKING THIS CHANGE. To find if rotation is
correct operate pumps and check delivery operation. If flow
and head is low (refer to pump curves shown in this manual)
the rotation is wrong. With duplex pumps, check operation
of both pumps.
6. All pump impellers, either single or three phase, must turn
counterclockwise when looking into pump inlet. If uncertain
of rotation, TURN OFF POWER and lift pump from basin with
cord connected and lay pump on side so impeller can be
seen. Turn on power and start pump using hand position of
H-O-A switch. Turn on and off fast so that coast of impeller
can be seen. NEVER PUT HAND OR FINGERS ON THE
IMPELLER. Interchange any two l line leads at the magnetic
starter to change rotation.
POINTS TO CHECK IF PUMP DOES NOT RUN OR DOES NOT RUN
PROPERLY
1. Pump does not run or start when water is up in tank.
Check for blown fuse or tripped circuit breaker.
Check for defective level switch.
Where control panel is used be sure H-O-A switch
is in the AUTO position. If it does not run, turn switch
to the HAND position and if the pump runs then the
trouble is in the automatic electrical system. Have an
ELECTRICIAN make electrical checks.
Check for burned out motor. Occasionally lightning
can damage a motor even with lightning protection.
Where plug-in cords are used, be sure contact blades
are clean and making good contact. DO NOT USE
PLUG-IN CORDS INSIDE A SUMP OR WET WELL.
Level control ball or weight may be stuck on side of
basin. Be sure it floats freely.
2. Pump runs but does not deliver flow.
Check air lock. Start and stop pump several times; if
this does not help it may be necessary to loosen a
union in the discharge line to relieve air lock.
Check valve may be installed backwards. Check flow
arrow on valve body. Check shut-off valve. It may be
closed.
Check vertical elevation. It may be higher than pump
can develop. (See pump curve).
Pump inlet may be plugged. Remove pump to check.
Risk of electric shock.
Always unplug power cords
or turn off all main and branch circuit breakers before doing
any work on the pump. If control panel is remote from pump,
disconnect lead wires to motor so that no one can turn the
circuit breaker back on. If motor is three phase, mark the leads
so they can be replaced in the same order.
INSTALLATION
