Operation; Trouble Shooting; Air Charge In Tank And Pressure Switch Setting - ALTAMIRA PRO-XLB Serie Manual De Instalación

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Before you operate the system you must check your water system
tank and system to ensure proper operation.
A l l w t a r e s s y e t m a t n
The final precharge pressure should always be 2 to 3 psi
below the cut-in (pump turns on) pressure of the pressure
switch. Release air or add air as required using the following
procedure.
1. Determine the pump cut-in pressure setting. The pressure
switch should have this information located on/in the cover.
2. With no water in the tank, measure the precharge of the
water system tank using an accurate pressure gauge at
the air valve (similar to an auto tire gauge).
IF YOU THINK YOU HAVE A PROBLEM WITH YOUR WATER
SYSTEM TANK, YOU SHOULD MAKE THE FOLLOWING
TESTS AND OBSERVATIONS BEFORE YOU CALL YOUR
PROFESSIONAL DEALER.
1. Observe water system operation and note any unusual
occurrence such as water spurting from a faucet rather than
a steady flow (indicates air in the system) or short cycling of
the pump (rapid starts and stops).
2. In the event that evidence of a small leak near the water
fitting appears, check at elbow. The introduction of cold
water to a warm tank may form condensation especially
in warmer climates. It is important to provide adequate
drainage.
3. The tank drawndown is governed by the air pressure in the tank
and the cut-in and cut-out pressure settings on the pressure
switch. If you have concerns about the drawndown, you should
check those settings as follows:
This water tank is designed for cold
(ambient temperature) water systems
at a maximum pressure of 125 PSI
(PRO-XLB and PRO-XLT series). Any
use with other than cold water or at a
sustained or instantaneous pressure in
excess of specified pressure.
A pressure relief valve of adequate
size must be incorporated into the
system. Failure to follow these instruc-
tions can cause the tank to explode
and result in death, serious bodily
injury, or property damage.
s k a e r p e r c h a g r e d o t 3 8 p i s t a h t

TROUBLE SHOOTING

OPERATION

3. Release air or add air to the tank to make the pressure in
the tank 2 to 3 psi LESS than the pump cut-in pressure
setting.
4. It will be necessary to expel air from the piping system
on new installations. To do this open all faucets and
turn on the pump. Observe that a mixture of water and
air will sputter from the faucet. Run the system until a
steady flow of water exists. Open and close the faucets
several times to assure that all air has been removed. If
streams do not become steady, an air leak may exist.
Check for leaks on suction side piping.
5. It may be necessary to make final adjustments on the
system pressure switch setting because at times the actual
pressure switch setting will vary from what is stated on the
cover. Such variation, though not harmful, could cause a
momentary lag of water delivery. To make this adjustment
follow these steps:
a. Fill the system until the pump shuts off.
b. Open a faucet and drain the water system tank until
the pump starts.
e a f c o t . y r
c. If there is a pause in the water flow from the time
the water system tank is emptied and the pump
starts up again, decrease the air pressure in the
tank until it is 2 to 3 psi below the cut-in pressure
setting. See Trouble Shooting section 3(a-b) for
procedure.
d. Close the faucets and refill the water system tank.
Repeat steps (b) and (c) if necessary until there is no
longer a pause in water flow.
a. Air charge in Tank. Turn off electric power to the pump.
Open faucet nearby and drain the tank completely. Check
the pressure in the water system tank using a standard, high
quality tire gauge. If the air pressure in the tank is below the
pump cut-in setting by more than 3 psi, add air to the tank to
make it 2 psi less than the cut-in setting. Replace the valve
stem cap. Check around the air stem using a soapy solution
to check for leaks around weld seams on the remainder of
the tank. If a leak appears on the tank itself then replacement
of the tank will be necessary.
b. Pressure Switch Setting. Start the pump and allow the
system pressure to shut off pump. Note both the cut-in and
cut-off pressure values on gauge. The difference should not
exceed 25 psi. Adjust the pressure switch if necessary after
shutting off the electric power to show a difference of 20 psi.
Instructions from the pressure switch manufacturer will explain
how to do this. Test the system after adjusting the limits. If the
pressure switch can't maintain the proper differential then it
may need replacement rather than the tank.
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