Tacmina PW Series, Operation Manual

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10
Installation
Installing the product
(1) Twist the pump head and solenoid-box part (upper part) counterclockwise by about 30 degrees, and lift slightly (by 2
to 3 cm).
Solenoid box part (upper part)
Circuit box part (lower part)
✽
Ensure that the wiring is not pinched.
✽
Check whether
the O-ring is
fitted into place
here.
(2) Twist the upper part in the desired direction, align the groove in the coupling of the upper part and the protrusion in
the coupling of the lower part, and insert.
(3) Twist the upper part clockwise, and secure.
IMPORTANT
•
The upper part and lower part are connected by wires. When lifting the upper part, lift it until the upper part and lower
part are separated just slightly (by a gap of 2 or 3 cm). The wires may be broken if the parts are separated too far.
• When twisting the upper part, do not apply pressure to the pump head and especially not to the joint
area and operation panel cover. Otherwise, the parts may be damaged.
•
The fixed part of the pump is made of plastic so refrain from applying excessive force to it. Doing so may damage it.
• Do not excessively twist the wires or pinch them between parts of the pump.
• The assembly directions are left, rear and right as seen from the control panel (only 90 degrees). The
pump cannot be assembled at any midway points.
•
During assembly, twist the upper part firmly until the protrusion touches the right end, and check that it is secured.
NOTE
• It is easier to twist the upper part if you press down on it.
•
When the pump is shipped, it is assembled so that the pump head is facing the left side as seen from the control panel.
Piping
! CAUTION
• Connect the pipes to the pump properly.
• Do not connect the pipes above a passageway. Do not install the pipes where the chemical may splash
onto people even if the hose/tube should break.
• When using a pump with a relief-valve function, always attach a hose for relief purposes, and lead the
end of the pipe back to a tank or other container.
•
It is dangerous to operate a pump with the discharge side pipe closed off due to valve closing or
clogging with foreign matter, for example, because abnormal pressure will buildup inside the pipe. As a
safety measure, take the action in I or II, whichever is applicable.
I.
When the pump is provided with a relief-valve function
Connect a relief hose to the air-release port, bring the end of the hose back to the chemical liquid tank
and secure it.
II. When the pump is not provided with a relief valve function
Attach a relief hose and relief valve to the discharge side pipe, and bring the end of the hose back to
the chemical liquid tank and secure it.
•
When using the pump in cold regions, the chemical may freeze inside the pump head or pipes, possibly
damaging the pump and its surroundings. Be absolutely sure to install a heating unit or heat-insulating unit.
•
When the hoses/tubes become very hot, their ability to withstand pressure will deteriorate. When using
hoses/tubes available on the market, be absolutely sure to use the ones which are resistant to chemical
and which can withstand the temperatures and pressures under which the pump will be used.
•
The durability of a hose/tube differs significantly depending on the chemicals with which it is used, on the temperatures
and pressures and on the presence of ultraviolet rays. Inspect the hoses/tubes, and replace them if they have deteriorated.
Bear in mind the following points when connecting the pipes.
08-32̲EM-127̲PW(E).indd 10 2014/11/17 11:43:52