Handling Precautions
If the above temperature range is not observed, this may cause the tube unit •
or shutter unit assembled to this unit to malfunction or unnecessary shut-off.
When this unit is not being used to detect a flame, do not allow the ambi-•
ent temperature to exceed 100 °C.
While power is being supplied, an ambient temperature over 100
°C causes
breakdown of the insulation on the internal coil and, when the unit resumes
operation (flame detection), faulty shutter operation (failure to open).
If the actual temperature may exceed the operating temperature range, •
put an appropriate thermal insulation plate between the combustion
chamber and this unit or carry out the air purging to put the temperature
within the operating temperature range.
Vibration ●
Mountthisunitinaplacewheretheaccelerationis4.9m/s
2
orless.
Handling Precautions
The vibration may cause the service life of the tube unit or shutter unit to •
be shortened, improper operation, or malfunction.
Outdoors ●
Whenusingthisunitinanoutdoorplace,mountappropriateroofsoreavesto
avoidrainwater.
Handling Precautions
The surface color of the case may change due to the influence of sunshine •
or other causes. However, this will not affect the functioning of the product.
Mounting posture ■
Mountthisdevicewiththeopeningfortheelectricalwiringconduitfacingdown-
ward,alignedinaverticalplane.
Mounting pipe
Mounting nut
Conduit tube connection port
Front side
Vertical plane mounting
Do not tilt
OK
Do not mount
horizontally
Do not
mount upside-down