iii
CAUTION
Do not peel off the pipe connection port seals until immediately before
you connect the piping. Doing so might allow foreign objects to enter the
connector port and cause defective operation.
If pipes may contain rust, welding fumes, slag, water droplets, oil mist or dust,
install a filter upstream to prevent foreign matter from entering the device.
Foreign matter may cause faulty operation.
When wiring, take care not to tug on the display. The components inside
might become damaged.
When replacing a fuse, be sure the replacement fuse has the correct amperage
rating. Use of a fuse with the wrong rating will prevent the safety circuit from
functioning properly.
Be sure to check that the wiring is correct before you turn the power ON.
Incorrect wiring may cause damage or malfunction.
Connect the power supply last. Otherwise touching terminals by mistake may
cause electric shock or damage the device.
Make sure that the load to be connected to terminals does not exceed the
rating indicated in the specifications.
Supply power at the voltage indicated on the model number label on the
device.
Take the necessary countermeasures with the instrumentation to prevent
the occurrence of backfire and to avoid any influence to the device even if
backfiring occurs. Pressure increase in the piping or fire caused by backfire of
the burner could damage the device.
When disposing of the device, observe local regulations.
