Yoshitake MD-71, Руководство по эксплуатации

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7.3 Warnings and cautions in installing the product
7.3.1 Warnings and cautions with the control panel and shut-off valves
Warnings
(1)Since the control panel and the shut-off valves are heavy weights, use a hoisting device or
a n e q u i v a l e n t t o d e f i n i t e l y s u p p o r t t h e p r o d u c t w h e n i n s t a l l i n g t h e m .
*A drop can possibly cause an injury.
*A drop can possibly damage a function.
(2)The control panel and the shut-off valves do not have an explosion-proof structure. Avoid
using the unit in the atmosphere of corrosive gas or volatile gas, in an accumulation place, or
in an explosive atmosphere.
(3)Allow a skilled and specialized worker to implement the construction of electric wiring.
(4)Before connection, make sure that the power supply is not turned on.
*The operator can get an electric shock.
(5)Before connection, check the rated voltage and conduct it appropriately according to the
connection instructions. (Also, see page 8).
*Improper connection can possibly cause an electric shock or fire.
*If used with any other than the specified power supply, the unit can possibly generate
smoke or fire.
(6)For the connected portion, ensure to adopt definite insulation treatment measures.
*Insufficient treatment can possibly cause an electric shock or fire.
(7)If the unit is used outdoors, adopt waterproof measures on the connected portion.
*A short circuit can possibly occur.
(8)Make sure that the control panel and the electric operator interior are free from water
intrusion.
*An electric shock can possibly be given.
(9)Avoid access to the terminal portion and connected portion out of the connection work.
*An electric shock can possibly be given.
(10)Connect the pump protection intent output terminal and the pump intent control panel
(interlock terminal inside the pump intent control panel) in such a manner that the pump will
definitely stop running when the shut-off valve closes the valve.
*The pump can possibly idle without water supply to the pump inlet side to burn out the
motor, resulting in a pump failure or fire
.
(11)Do not remove the electric actuator from the shut-off valve bodies when connecting the
shut-off valves to the piping
* This can possibly cause loss of parts or a malfunction.
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Cautions
(1)Avoid disassembling the control panel and the shut-off valves.
*Careless disassembly prevents the product from functioning.
(2)Use the electric wire material as specified in "7.1 Sample piping diagram."
In addition, make sure that the wiring is free from an unreasonable force.
(3)If the unit is used outdoors, avoid connecting the lines in a rain.
*An electric shock can possibly be given.
(4)Note that the maximum wiring distance between the control panel and the shut-off valves is
50 meters.
*If the wiring distance exceeds 50 meters, the shut-off valves can possibly fail in working.
(1)When wireways or Prica tubes are used, they must fully be sealed so that no rain water
would intrude or dew condensation will not result.
(2)Adopt electric shock preventive measures such as grounding.