Pentair Pool Products HYDROMATIC H4QX, Installation And Service Manual

Page: 3 / 20

Starting System:
1. Double check all wire
con nec tions.
2. Turn pumps to Off position on
H-O-A switch es.
3. Turn on breakers.
4. 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, ro ta tion is
wrong. To change ro ta tion,
interchange any two line leads
to pump. Do not in ter change
main incoming lines. Check
ro ta tion of all pumps in this
same man ner.
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).
8. Turn switches to Auto position,
and pumps should start and
op er ate together until level
drops to turn-off point.
9. Repeat this operation cycle
sev er al times before leaving job.
10.Check voltage when pumps
are operating, and check the
amp draw of each pump. Check
amps on each wire as sometimes
a high leg will exist. One leg
can be some what higher by 5
to 10 per cent without causing
trouble. For excessive amp draw
on one leg, the electric utility
company should be consulted.
3
protect these windings with the
appropriate heaters, consult the
factory.
NOTE: red lead is always
start wind ing of pump using
single phase.
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
installing Sump Level Control
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
sup plied level con trols refer to
your sys tems 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 not connect the power until
after this test.
Pump
Installation