Xylem Jabsco 31820-0492 Manual De Instrucciones página 3

OPERATING INSTRUCTIONS
WARNING. Explosion hazard.
Do not pump gasoline or other flam-
mable liquids. To do so can cause an
explosion resulting in injury or death.
WARNING. Fire hazard.
Wiring must comply with
applicable electrical standards and
include a properly sized fuse or circuit breaker.
Improper wiring can cause a fire resulting
in injury or death.
1. MOUNTING – JABSCO diaphragm pumps are self-prim-
ing and may be located in a dry location above or below
the fluid supply. To vertically mount these units, it is
best to do so with the motor on top. This will prevent
fluid dripping on the motor in the event of a leak. Place
pump on a solid surface and secure with four mounting
screws being careful not to fully compress the rubber
grommets which act as shock absorbers.
2. PLUMBING – Port adaptors are supplied to fit 1/2" (13
mm) dia. ID hose or 1/2" (13 mm) dia. straight pipe
threads. Use Teflon* (PTFE) type tape when threading
straight pipe threads to tapered pipe threads. Select
two of the port adaptors supplied to match your plumb-
ing system. Flexible hose or tubing is recommended
instead of rigid piping at pump.
If you choose to use rigid piping, provide a short length
of hose between pipe and the pump to avoid noise and
vibration. Use clamps at both ends of hose to prevent
air leaks. NOTE: Intake hose should be at least 1/2" (13
mm) ID reinforced hose.
A "Pumpgard" 36400-Series 1/2" (13 mm) or 36200-Se-
ries 3/4" (19 mm) in-line strainer should be installed
between pump and fluid supply to keep debris out of
system. Avoid any kinks or fittings which could cause
excessive restrictions. Remember to periodically clean
"Pumpgard" screens.
3. WIRING DC MODELS – In an easily accessible location,
install an "on-off" switch (Jabsco 44960-Series) to con-
trol electricity to the pump. Turn the pump off when
not used for extended periods, or when fluid supply is
depleted.
The electrical circuit should be protected with an over -
current protection device in the positive lead. See chart for
proper size. The pump circuit should not include any other
electrical loads. Black Wire from the motor is negative, or-
ange is positive.
If you are not familiar with applicable electrical stan-
dards, have the unit installed by a qualified electrician.
After installation, check the voltage at the pump motor.
Voltage should be checked when pump is operating. Full
voltage must be available at the pump motor at all times.
Select wire size from chart below. Use total length of wire
from electrical source to pump and return. Chart allows for
3% voltage drop. If in doubt, use next larger wire size.
Total wire 0-20 ft
length (0-6 m)
12 volt #14 AWG
(2.5 mm²)
#16 AWG
24 volt
(1.5 mm²)
* TEFLON is a registered trademark of E.I. DuPont de Nemours and Company.
4. SELF-PRIMING – Pump is self-priming. Vertical dry
lift capacity is 10 ft (3 m) (wet) 5 ft (1.5 m) (dry) min.
Be sure suction piping is airtight or pump will not self-
prime.
5. RUNNING DRY – Pump can run dry indefinitely with-
out damage.
6. CHEMICAL COMPATIBILITY – Fluids being pumped
must be compatible with the materials of construc-
tion. Consult factory for Chemical Compatibility Guide.
Pump should be flushed with clean water or neutraliz-
ing solution after each use to prolong pump life.
7. PRESSURE – Maximum continuous duty discharge
pressure is 40 psi with an ambient temperature no
greater than 130°F (55°C). NOTE: If the system operat-
ing pressure exceeds 50 psi, an external pressure relief
value should be installed in the system.
8. TEMPERATURE – The maximum recommended fluid
temperature is 130°F (54°C). Minimum recommended
fluid temperature is 45°F (7°C).
9. VISCOSITY – The maximum pumped fluid viscosity is
250 centipoise.
10. DUTY CYCLE – Motor and pump are designed for con-
tinuous operation in a 130°F (55°C) environment while
pumping against 40 psi (2.8 bar) discharge pressure.
Beyond these parameters, an intermitted duty cycle is
recommended to maximize pump life. In normal oper-
ation, motor case will get hot. Prolonged contact with
motor could cause a burn on human skin.
11. START-UP AND OPERATION – Check level of fluid in
supply tank. Open all valves in system. Switch pump
electrical circuit to "on" position. Flow will become
steady as air is bled from system. For pumps equipped
with pressure switch, close discharge valve after flow
becomes steady fluid stream. Pump should shut off
soon after closing valve. Pump is now ready for auto-
matic operation. Pump will start when valve is opened
and stop upon closure of valve. If pump is to be inop-
erative for a considerable period of time, flush pump
with water, turn off electrical circuit to pump, and bleed
system pressure by opening discharge valve.
3
20-35 ft 35-55 ft
(6-11 m) (11-17 m)
#12 AWG #10 AWG
(4 mm²) (6 mm²)
#14 AWG #12 AWG
(2.5 mm²) (4 mm²)