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ANALOG
INPUT
-- +
ANALOG
INPUT
SETPOINT
+mA +V
(c)
OUTDOOR AIR
TEMPERATURE
ALTERNATE
SETPOINT
SETPOINT
RANGE ALARM
ALL LIMIT
POINTS ALARM
PUMP
DELAY
CUSTOMER
CONNECTIONS
FLAME SAFETY
ALARM
# 1 START
INTERLOCK
# 2 START
INTERLOCK
IRI Unit - Local & Remote Control w Options - Logic Diagram