Single phase pumps with capacitor
start have a run and a start winding
each drawing a different current.
To adequately protect these
windings with the appropriate
heaters, consult the factory.
NOTE: Red lead is always
start wind
ing of pump using
single phase.
not connect the power until after
this test.
Clean all trash and sticks from
sump and connect pump to piping.
A check valve must be installed
on each pump. A gate or plug
valve in each pump discharge is
highly rec om mend ed. This valve
should be installed on the
discharge side of the check valve
so if necessary to service the
check valve, the line pressure can
be cut off. Sin gle pump systems
are sometimes installed without a
check valve where it is de sir able
to self-drain the dis charge line to
prevent freezing. This can be done
only with short discharge lines;
oth er wise water will return to the
sump and cause short cycling
of the pump.
Making Electrical Connections:
All electrical wiring must be in
ac
cor
dance with local code, and
only qual i fied electricians should
make the in stal la tions. Complete
wiring di a grams are included for
use in making the installation.
All wires should be checked
for shorts to ground with an
ohmmeter or Megger after the
con
nec
tions are made. This is
important, as one grounded wire
can cause con sid er able trouble.
IMPORTANT: If equipment
is not properly wired and
protected as recommended,
Hydromatic war ran ty is void.
See Page 5.
Heat Sensor and Seal Failure
Connections:
If a Hydromatic control panel
is used, terminal blocks are
provided for heat sensor, seal
failure connections (See Panel
Schematic). If a control panel
is supplied by others, it must
allow heat sensor and seal
failure ter mi na tions.
Pump
Operations
Starting System:
1.
Double check all wire
connections.
2. Turn pumps to Off position on
H-O-A switch es.
3. Turn on breakers.
4A.When using single phase
pumps, make sure red pump
lead is con nect ed to capacitor
circuit, con
nect amprobe to
pump power cord and turn
pump on. Pump will show high
amp draw mo men tari ly, then
as pump comes off start
wirings, amps will drop to
normal nameplate amps.
4B.When using three phase
pumps (230/460/575), turn
H-O-A switch to Hand
po
si
tion on one pump and
notice op
er
a
tion. If pump is
noisy and vi brates, rotation is
wrong. To change rotation,
interchange any two line leads
to pump. Do not in
ter
change
main incoming lines. Check
rotation of all pumps in this
same manner.
5. Now set both H-O-A switches
to Auto po
si
tion and allow
water to rise in sump until one
pump starts. Allow pump to
operate until the level drops
to turn-off point.
6. Allow sump level to rise to
start other pump(s). Notice run
lights to panel. Pumps should
alternate on each successive
cycle of op er a tion.
7. Turn both H-O-A switches
to Off position and allow sump
to fill to the override control
level(s).
Pump
Installation
Installing Sump Level Controls
Float Controls:
In either simplex, duplex or
triplex systems the lower or
turn-off control is to be set to
maintain a minimum level in the
sump. This level shall be no more
than 3
1
⁄
4
" from the top of the
motor housing down to the
surface of the sewage.
The second or turn-on control is
set above the lower turn-off
control. The exact distance
between the two floats must be a
compromise between a fre
quent
pumping cycle (10 starts per hour
max.) to control septicity, solids
and a slower cycle for energy
econ o my. This distance should be
de
ter
mined by the engineer or
con sult ing engineer de pend ing on
the con di tions of the application.
For installation of Hydromatic
supplied level con
trols refer to
your sys
tem’s installation and
service manual.
Installing Pump in Sump:
Before installing pump in sump,
lay it on side and rotate impeller.
Impeller may be slightly stuck
due to factory test water so it must
be broken loose with small bar or
screwdriver in edge of vanes. The
impeller should turn freely.
Do
3
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