ONICON System-30 BTU - Manual (Page 15)

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System-30 BTU Measurement System Manual 05/14 - 0667-2 / 18335
Page 15
Temperature Sensor/ Mode of Operation Relationship with Meter in Supply Line
Supply Temp Temperature 1 Sensor (Internal Sensor)
Return Temp Temperature 2 Sensor (External Sensor)
Mode 1 Total Heating (Supply Temp > Return Temp)
Mode 2 Total Cooling (Supply Temp < Return Temp)
ISOLATION VALVE
Normally Open
ISOLATION VALVE
Normally Open
BYPASS VALVE Normally Closed
20"
5"
CHILLED W
ATER
SUPPL
Y
Y Strainer Upstream
Of Flow Meter
CHILLED W
ATER
RETURN
CONTROL
SYSTEM
BACnet MS/TP
NETWORK
24 V
AC POWER
FAN COIL
UNIT
OR
AIR HANDLING UNIT
RETURN
TEMP
FLOW
DIAGNOSTIC
LED’S