The rotary switch on the controller, located in the
upper left corner, needs to be set to the proper
protocol (1=MSTP, 2=ARCnet, 3=Modbus). Contact
your BMS engineer for information of which
protocol is being used.
1. On the
Router
screen make sure to change
PORT S1 value to specific network number for
communication protocol.
2. On the
IP
screen make sure to set the IP
Network to
0
if not already.
Safety switches
•
High pressure switch (HPS1)
: If HPS1 is open,
compressor #1 will turn off and the controller
will issue an alarm. After manually resetting
HPS1, the HPS1 alarm will reset. Following
a minimum time off delay, compressor #1
will turn on. If the controller records 3 high
pressure start/restart failure incidents within
1 hour, compressor #1 is locked out and the
controller will issue an alarm. The compressor
lock-out can be reset in the EQ2 display pad or
by cycling the power of the controller. Refer to
the IOM for more information.
• For systems with two circuits, this is the same
for compressor #2, Y2 and HPS2.
•
Low pressure switch (LPS1)
: If LPS1 is open
after the LPS1 by-pass time, the controller
will issue an alarm and compressor #1 turns
off. After 30 seconds (fixed), the LPS1 alarm
will reset. Following the minimum time-off
delay, the compressor #1 will turn on. If the
controller records 3 low pressure start/restart
failure incidents within 1 hour, compressor #1
is locked out and the controller will issue an
alarm. The compressor lock-out can be reset
in the EQ2 display pad or by cycling the power
of the controller. Refer to the IOM for more
information.
• For systems with two circuits, this is the same
for compressor #2, Y2 and LPS2.
Safety shutdowns
•
Smoke detector (optional)
: When a smoke
detector (SD) is provided, it is wired directly
to the controller. If smoke is detected, the
controller will shut down the unit. The alarm
can be reset in the EQ2 display pad or by
cycling the power of the controller.
• If a compressor fails to start 3 times in an
hour due to high pressure switch lock out. The
alarm can be reset in the EQ2 display pad or by
cycling the power of the controller.
• If a compressor fails to start 3 times in an
hour due to low pressure switch lock out. The
alarm can be reset in the EQ2 display pad or by
cycling the power of the controller.
• If a compressor fails to start 3 times in an hour
due to DX LAT or suction line temperature lock
out. The alarm can be reset in the EQ2 display
pad or by cycling the power of the controller.
If the controller detects an SAT sensor failure. The
alarm can be reset in the EQ2 display pad or by
cycling the power of the controller.
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without notice. 100 JCI Way, York, Pennsylvania USA 17406-8469.
