Pump Installation; Emergency Power; Recommended Fusing And Wiring Data; Horizontal Piping From Well To Pump - Craftsman HYDROGLASS 390.252282 Owner's Manual

Hydroglass convertible deep well jet pump
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INSTALLATION
"
I--
I
A CAUTION
INEVER run pump
dry. Running pump with-
out water may-overheat
unit, damaging
seals and possibly
burning persons
handling
pump.
IAWARNING]_
run
pump
against
closed
dis-
charge.
To do so can boil water
inside pump,
causing
haz-
ardous
pressure
in unit and possible
scalding
to persons
handling
pump.
Be sure the total lift from
the pumping
water
level to the
pump
does not exceed
20 feet if the pump
is over the well,
or less if the pump
is offset from the well. Both figures
are
for sea level - the maximum
lift at which
the pump
can op-
erate
satisfactorily,
decreases
with
the elevation
at the ap-
proximate
rate of 1 foot per 1,000 feet of elevation;
thus, ff
the lift is 17 feet and your elevation
is 3,000 feet above
sea
level,
you would
then be pumping
17 plus
3 or 20 feet,
which
is still satisfactory
for shallow
well pumping.
Horizontal
Piping
From Well
To Pump
On well point
installations
where
the horizontal
piping
is
more
than
25 feet,
a check
valve
should
be installed
as
shown
in Figures 3 and 4, Page 5.
When
the pump
is offset
more than 25 feet from
the well,
horizontal
piping
should
be increased
in size to reduced
fric-
tion losses.
In no case should
the offset
piping
be smaller
than the suction
tapping
of the pump.
Horizontal
Offset Piping
Sizes
S_ . ha!!..Qw,_W.ell J ets
1-1/4"
1-1/2"
2"
Up to 25 Ft.
25 to 50 Ft.
50 to 200 Ft.
Horizontal
Offset Piping
Sizes
Deep Well Jets
Up to 50 Ft.
50 to 100 Ft.
100 to 300 Ft.
Suct.
Drive
Suct.
Drive
Suct.
Drive
1-1/4
1
1-1/2
1-1/4
2
1-1/2
Discharge
Pipe Sizes
When the pump is set a distance from the house, barns, or
other points of water use, the discharge pipe size should be
increased to reduce pressure losses.
1"
1-1/4"
Up to 25 Ft.
25 to 100 Ft.
1-1/2"
100 to 600 Ft.
PUMP
INSTALLATION
SEARS jet pumps
can be used with
Captive Air* Tanks
as
shown
in Figure 1, Page 4, and Figure 3, Page 5.
For mounting
pump
to tank, order tank fittings Kit No. 2788.
Captive
_
Tanks
are pre-charged
with
air at the factory.
Check
operating
instructions
with
tank to determine
if air
charge
needs
adjustment.
Model
390.251182
requires
30 pounds
air charge
for
proper
operation
and
Models
390.251982
and
390.252282
require
40 pounds
for proper
operation.
EMERGENCY
POWER
In some
areas
and with
some
installations,
an emergency
power
supply
to guard against
power
failure
is a good idea.
If you install an engine-generator
set for emergency
backup
power
for your pump,
supply
the generator
set manufac-
turer with the nameplate
data from the pump
motor.
He will
then be able to provide
a generator
of the correct
size to
power
your pump.
Also, be sure to add the load from
any
other
accessories
(such as lights)
that may be on the same
circuit.
Recommended
Fusing and Wiring
Data
Pump
Model
390.251182
390.251982
390.252282
Motor
Horse-
power
1/2
3/4
Volts
115
230
115
230
115
230
Max.
Load
Amperes
9.4
4.7
12.2
6.1
14.8
7.4
Branch*
Delayed
Fuse
Rating
Amps
15.0
15.0
15.0
15.0
20.0
15.0
Distance in Feet From
Motor to Meter
0
51
101
201
.to
to
to
to
50
100
200
300
Wire Size
--
14
14
10
10
14
14
14
14
12
12
10
8
14
14
14
14
12
12
8
6
14
14
14
14
* Time delayed fuses are recommended instead of fuses in any motor circuit.

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