Installation (Continued)
(drawdown) than the same size
standard tank, a physically smaller
tank can do the same job. The
drawdown (water delivered
between pump cycles) is the
common factor when comparing
precharged to standard tanks; total
volume of each tank is not
comparable.
10.
A Waterlogged Tank:
The purpose
of the pressure tank is to allow a
certain amount of water to be
drawn before the pressure drops
enough to cause the pump to start.
Without a pressure tank, the pump
is controlled only by the pressure
switch. Just one use of the water tap
would cause the pump to rapidly
start and stop numerous times,
resulting in premature failure of the
pump motor. The same condition
occurs when a tank is waterlogged.
The air supply in the tank is
gradually absorbed by the water,
leaving little or no water available
for drawdown. The pump must cycle
with increasing frequency to deliver
the same amount of water.
Waterlogging can be caused by
either failure of the air volume
control on a standard tank system or
rupture of the bladder in a
precharged tank system.
NOTE:
Should you be replacing your
pump, be sure that the tank system is in
good operating condition, as a
waterlogged tank may have caused
your pump failure.
Maintenance
SERVICING SUBMERSIBLE MOTOR
AND CONTROLS
The following is included to assist in
motor installation and servicing. These
procedures are limited to the motor
and control system; they do not include
pump requirements.
CABLE IDENTIFICATION WHEN
COLOR CODE IS LOST (3-WIRE ONLY)
If the colors on the individual drop
cables cannot be determined and the
leads cannot be positively identified,
proceed as follows:
1. Disconnect all three drop cables
from the control box. For temporary
identification, tie a numbered tag to
each cable (1, 2, 3).
2. Using an ohmmeter, check the
resistance between cables as follows:
Unknown Value:
Cable 1 to Cable 2
Cable 1 to Cable 3
Cable 2 to Cable 3
Known Value:
Lowest - Black to Yellow
Intermediate - Red to Yellow
Highest - Black to Red
NOTE:
The “yellow” cable is that giving
lowest and intermediate readings and
the “red” cable gives highest and
intermediate readings.
Example:
1 to 2 gives 7 Ohms (highest reading)
1 to 3 gives 5 Ohms (intermediate
reading)
2 to 3 gives 2 Ohms (lowest reading)
Cable 3 gave both intermediate and
lowest reading.
12
Teel Operating Instructions and Parts Manual
Teel Deep Well Submersible Pumps
®
E
N
G
L
I
S
H
Insulation Resistance
New Motor (without drop cable)
20.0
20,000,000 or more
Used Motor which can be reinstalled in a well
10.0
10,000,000 or more
Motor in Well (Readings Are for Drop Cable Plus Motor)
New motor in the well
2.0
2,000,000 or more
Motor in reasonably good condition
0.5-2.0
500,000 to 2,000,000
Motor may have damaged leads or have been damaged by lightning.
Does not need to be pulled
0.02-0.5
20,000 to 500,000
Motor definitely damaged or with damaged cable.
Should pull pump and repair or replace motor or cable.
Motor will probably not continue to operate for long.
0.01-0.02
10,000 to 20,000
Motor has failed or cable insulation has been completely destroyed.
Pull pump and repair or replace motor and/or cable.
Motor will not run in this condition.
0-0.1
< 10,000
Insulation Resistance in Ohms and Megohms for all motors
values between leads and ground
Condition of Motor and Leads
Megohms
Ohms
4P847A thru 4P851A, 4P852 thru 4P865, 4RH01 thru 4RH06,
4RG76 thru 4RG84, 4RG94 thru 4RG97 and 4RG99
