© 2021 Carrier
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7.
Maximum wire lengths:
a)
Terminal inputs (operating limits, interlocks, valves, etc.): 200 feet (61 meters).
b)
Remote reset line voltage input: 500 feet (152 meters) NOTE: A normally open remote reset pushbutton
should be used and must remain within sight and sound of the burner.
c)
Modbus via RS-485: 1000 feet (305 meter).
8.
A good grounding system should be provided to minimize the effects of poor quality AC voltage. A
properly designed grounding system meeting all the safety requirements will ensure that any quality
problems (spikes, surges or impulses) have a low impedance path to ground. A low impedance path to
ground is required to ensure that stray currents paths created will drain to ground instead of through
equipment and causing potential damage.
9.
Failure to follow these instructions can cause a hazardous condition and/or equipment damage.
10. Before installation, ensure that the control is suitable for your application by verifying all ratings and
functionality.
11. After installation, verify all control operation as provided in these instructions.
Published load ratings assume that the internal contacts will only get switched once every 15 seconds.
Using inputs which exceed this duty cycle can lead to premature control failure. Following the
tripping of a circuit breaker, a blown fuse or any known instance of excessive contact cycling, the
control should be operated with the fuel shut off as a test to ensure proper functionality.
WIRING CONNECTIONS
CAUTION:
Ensure that electric power is turned off. Refer to SN-100 for recommended
grounding techniques. Be aware that power to some interlocks (operating controls, air
flow switches, modulating circuits, etc.) may be derived from sources other than what is
controlling the BurnerPRO.
Summary of Contents for 60-2991 Series
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