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SPECIAL INSTRUCTION FOR TWO
SPEED ENERGY MASTER HYDROPUMP:
The performance of this pump will be the same at
high speed as the same model single speed pump,
both hydraulically and prime wise. At low speed the
pump will produce one half the flow and the pressure
will drop GREATLY which is due to much lower sys-
tem friction. These lower friction losses result in
GREAT energy savings. On low speed the electrical
energy savings are 60%.
Turn motor to high speed for vacuuming the pool,
reading the pressure gauge to determine if cleaning
or back washing of filter is required, for fast clean-up
of pool water, and for priming the system to rid it of all
air. Turn motor to lo
w speed for quiet operation and
electrical cost savings. Since the pump should be
operated mostly at low speed for cost savings, minor
adjustments may be required in the automatic chlo-
rine dispenser, the skimmers and the heater due to
the lower flow. (See the equipment manufacturers
operation manuals).
All electrical work MUST be done by a licensed
electrician. Before working on motors be certain that
the electrical power is OFF at the main junction
box. TWO SPEED pumps have SINGLE VOLTAGE
motors which cannot be changed. See the motor
nameplate for the motor being installed. ALL electri-
cal connections should be made in the SIDE BOX
which also includes a prewired HI-LO switch. See
Diagram 1.
If an automatic timer is installed to change
speeds, the wiring connected to the switch should be
removed and the BLACK wire discarded. See
Diagram 2. The timer should then be installed and
connected to the motor as follows:
TIMER INSTALLATION FOR HI-LO SWITCHING
OF 2 SPEED HYDROPUMP
®
An intermatic timer with single pole, double throw
switch may be used to automatically switch the
HYDROPUMP
®
between the high and low speed
modes at present intervals.
1) Check to see that timer voltage is the same as
that of the HYDROPUMP
®
motor. The following
intermatic timers should be used.
Hydropump H.P. Voltage Timer Model
3/4 115 T175*
1, 1 1/2, 2 230 T176*
*These models have skip-a-day wheel. Remove skip
screws if not needed.
2) Connect the timer to the motor following Diagram
3. All electrical connections to the motor should
be made in the side box.
NOTE: When time switch is ON
- pump is on HI.
When time switch is OFF
- pump is on LO.
CAUTION: Manual switch on motor side box must be
disconnected when HYDROPUMP
®
is being con-
trolled by the timer or the motor will be damaged.
TIMER INSTALLATION FOR PROGRAMMED
ON-OFF, HI-LO SWITCHING OF 2 SPEED
HYDROPUMP
®
Automatic on-off and hi speed-lo speed control of
the ENERGYMASTER 2 speed pump can be
obtained by properly installing two appropriate
timers. One timer must have a single-pole, double
throw switch and the other must have a single-pole,
single throw switch. Both timers and the HYDRO-
PUMP
®
motor must be designed to operate on the
same voltage.
Only Intermatic timers are discussed below, but
other types may be used if desired. The following
timers are recommended for this installation:
Intermatic
Hydropump Timer Model No.
H.P. Voltage S.P.D.T. S.P.S.T.
3/4 115 T175* T101
1, 1 1/2, 2 230 T176* T102
•These models have skip-a-day wheel. Remove skip
screws if not needed.
1) Mount the timers side by side, between the power
supply and the HYDRO-PUMP
®
an Intermatic 2-
in-1 raintight case is ideal for this installation.
2) Timer No. 1 will be used to control the hi speed-
lo speed switching of the motor.
3) Timer No. 2 will be used to automatically switch
the HYDRO-PUMP
®
on and off.
The clocks of both timers must run continuously
for the proper operation of the switching circuits.
Therefore it is necessary to make a connection
between line 1 and the clock input of timer No.1.(See
Diagram 4.)
NOTE: When time switch 1 is ON - pump is on HI.
When time s
witch 1 is OFF - pump is on LO
.
All wiring connections should be made with 12
A.W
.G.
or larger wire siz
e
.
All wiring connections to
the HYDRO-PUMP
®
should be made inside the
motor side box. The 2 speed motor is designed to
oper
ate on the v
oltage stamped on the nameplate
only. Wiring with a different line voltage will damage
the motor.
OPERATING INSTRUCTIONS
1) Set both clock dials to the exact time of day.
2) Locate the trippers on the clock dial of timer No.
2 to switch the HYDRO-PUMP
®
on and off at the
desired times.
3) Locate the trippers on the clock dial of timer No.
1 to switch the HYDRO-PUMP
®
between hi and
lo speed at the desired time. The timers should
always be programmed so that the HYDRO-
PUMP
®
will always operate for 10 minutes mini-
mum at hi speed when it is switched on. This
allows priming of the pump and evacuation of air
from the piping system.
4) The pump may be manually switched between hi
and lo speed by flipping the manual lever of timer
No. 1, and may be switched on and off by flipping
the manual lever of timer No. 2.
CAUTION: Always turn power off at main panel
before servicing switches or pumps.
CAUTION: Be certain the wiring CANNO
T allow both
the HI and LO speed motor windings to be energized
at the same time.
CAUTION: This pump is for use with permanently
installed pools and may also be used with hot tubs
and spas if so marked. Do not use with storable
pools. A permanently installed pool is constructed in
or on the ground or in a building such that it cannot
be readily disassembled for storage. A storable pool
is constructed so that it may be readily disassembled
for storage and reassembled to its original integrity
and has a maximum dimension of 18 feet and a max-
imum wall height of 42 inches.
Do not install within an outer enclosure or
beneath the skirt of a hot tub or spa unless so
marked.
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