Pentair TRAIL KING II 4029 Serie Manual De Instalación Y Operación página 2

PUMP W/ ADJUSTABLE
PRESSURE SWITCH
"OPERATION"
Restrictions in a plumbing system may
cause the pump to rapid cycle (ON/OFF
within 2 sec.) during low flow demands.
Cycling should be minimized to prevent
pulsating flow and to achieve maximum
pump life. To determine if adjustment if
necessary, turn tap on to lower than aver-
age flow of water. The pump should cycle,
but its "OFF time" must be 2 seconds
or longer. If the cycling is correct, leave
well enough alone. If the pump is cycling
rapidly increase the setting by turn-
ing the screw clockwise (1/2 TURN to ¾
TURN MAX.) until the pump operates for 1
second with at least 2 seconds "OFF time".
If cycling cannot be minimized consider
removing plumbing restrictions or simply
install a SHURFLO Accumulator.
MAINTENANCE
Checking and cleaning the strainer,
normal sanitizing and winterizing and
occasional checking all plumbing hard-
ware and fittings for tightness is all that is
normally required. Lack of sanitizing is the
number one reason for premature pump
failure and poor performance over time.
Lack of sanitizing will cause scale build-up
on the diaphragm and valves, causing low
flow and leak back (occasionally pump
cycling with no faucets open or tank filling
up when hooked up to city water).
2
PUMP W/ ADJUSTABLE BY-
PASS & ADJUSTABLE PRESSURE
SWITCH "OPERATION"
The pump operates normally up to about
1 Bar [15 psi] by-pass pressure, where a
spring-loaded by-pass valve opens, allow-
ing flow back from the output side to the
input side, providing smooth, steady flow
with virtually no cycling, all the way down
to a trickle. As a faucet is opened, the
pressure will drop, the by-pass will close
and full flow is achieved. This allows good
flow, even with today's commonly used
restrictive showers and pullout sprayer
faucets. Performance will vary, of course,
depending on the voltage to the pump:
lower voltage = lower flow, higher voltage
= higher flow. Always be cautious and
practice electrical safety. It is always best
to shut off power to the pump when leav-
ing the RV/Caravan unattended.
SANITIZING
Potable water systems require periodic
maintenance to keep components working
properly and deliver a consistent flow of
fresh water. Sanitizing is recommended:
prior to storing, after a period of stor-
age, or any time the system is opened or
contaminated, as follows: NOTE: Check
your Vehicle Owner's Manual for spe-
cific instructions. By-pass any filters or
remove filter cartridges.
1. Determine the amount of common
household bleach needed to sanitize the
tank.
A) 2 ounces of bleach per 15 gallons
tank size: 60 gallon tank [15 x 4] = 4 x 2
ounces = 8 ounces of bleach.
B) I ml bleach per 1 liter tank size: 300
liter tank = 300 milliliters of bleach.
2. Mix the bleach with water in a con-
tainer such as a gallon jug. If tank is filled
through a pressurized fitting, pour the
bleach into the hose before attaching the
hose to the city water entry.
3. Pour the bleach solution into the tank
and fill the tank with potable water. Rock
the RV back and forth to coat top and sides
of potable water tank.
4. Open all faucets (Hot & Cold) allowing
the water to run until the odor of chlorine
is detected. Allow four (4) hours of contact
time to disinfect completely. Doubling the
solution concentration allows for a contact
time of one (1) hour.
5. Drain the tank. Refill the tank and flush
the system once or twice until the odor has
decreased. The residual chlorine odor and
taste is not harmful.
ABOUT THE BY-PASS
The by-pass is a spring loaded diaphragm
that, when open allows water from the
discharge side back to the inlet side. If the
switch or by-pass are adjusted too much,
the by-pass and switch shut-off can over-
lap and THE PUMP WILL NOT SHUT OFF.
Screwing the switch screw in clockwise
will raise the shut-off pressure. Unscrew-
ing the switch screw counterclockwise will
lower the pump shut-off pressure. Screw-
ing the by-pass screw in will raise the
pressure at which the by-pass starts and
raise the full by-pass pressure. Unscrew-
ing the by-pass screw counterclockwise
will lower the pressure at which by-pass
starts and lower the full by-pass pressure.
WARNING: If full by-pass is reached
before the shut-off setting, the pump will
not shut off. Full by-pass pressure setting
should be at least 0.48 bars [7 psi] higher
than pump shut off pressure.
WINTERIZING
Refer to the vehicle owner's manual for
specific winterizing instructions.
If water is allowed to freeze in the system,
serious damage to the plumbing and pump
may occur. Failures of this type will void
the warranty. The best guarantee against
damage is to completely drain the pump
and perform the following:
1. Drain the water tank. If the tank doesn't
have a drain valve, open all faucets allow-
ing the pump to operate until the tank is
empty.
2. Open all the faucets (including the low-
est valve or drain in the plumbing), allow
the pump to purge the water from the
plumbing, and then turn the pump OFF.
3. Using a pan to catch the remaining
water, remove the plumbing at the pump's
inlet/outlet ports. Turn the pump ON,
allowing it to operate until the water is
expelled. Turn OFF power to the pump
once the plumbing is emptied. Do not re-
connect the pump plumbing. Make a note
at tank filler as a reminder: "Plumbing is
disconnected".
4. All faucets must be left open to guard
against any damage.
5. Potable anti-freeze may be poured down
drains and toilets to protect p-traps and
toilet seals. Sanitize the plumbing system
before putting the plumbing system back
in service.