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Chapter 2. Installation, Wiring
Installation method
WARNING
Before mounting, removing, or wiring, be sure to turn off the power to this device and all connected
devices. Failure to do so may result in an electric shock.
CAUTION
Installation, wiring, maintenance, inspection, and adjustment must be carried out by a professional
with technical training in combustion equipment and combustion safety equipment.
Do not install where exposed to any of the following:
• Certain chemicals or corrosive gases (ammonia, sulfur, chlorine, ethylene compounds, acid, etc.)
• Splashing water or excessive humidity.
• High temperatures
• Prolonged vibration
For mounting and wiring, follow the instructions in this user's manual or in manuals provided by
the combustion equipment manufacturer.
A fuse is built into the control load line of this device. Do not connect a load exceeding the rated
power to the control load terminals (6, 7, 8) of this device, or short the load terminals. Doing so will
burn the fuse out, making this device unusable.
When using this device as a burner control system, install it to a control panel that supports IP40 or
more. If IP40 is required for this single device, also use a side board (sold separately). The protective
structure of this device is equivalent to IP10.
Cautions regarding installation
•
Take space 50 mm above and below, 50 mm to the left and right, and 80 mm to
the front, as space for removal, wiring, and maintenance. Also, do not install this
device close to electric power devices or other sources of heat.
•
This device must be installed in a grounded and conductive control panel to
ensure safety.
•
Do not pull the wiring while it is attached to the device. Doing so can cause
failures of the connectors or the device itself.
80 mm
Front
Wiring, ducts, etc.
AUR890
main unit
50 mm
50 mm
50 mm
50 mm
50 mm
50 mm
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