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THX9321 PRESTIGE
®
2.0 AND THX9421 PRESTIGE
®
IAQ 2.0 WITH EIM
7 68-0311—01
Return Air Temperature Sensor
Mounting Location
1. Install the Return Air Temperature Sensor on the return
duct in a location where the air is mixed well. Mount the
Return Air Temperature Sensor downstream of a Bypass
Humidifier, Dehumidifier or Ventilator. See Fig. 5–9.
Fig. 5.
Fig. 6.
Fig. 7.
Fig. 8.
MOUNT DISCHARGE
SENSOR HERE
M33074
HEAT
EXCHANGER
BLOWER
VENTILATOR
OR
DEHUMIDIFIER
MOUNT RETURN
SENSOR HERE
DOWNSTREAM OF
VENTILATOR OR
DEHUMIDIFIER
A-COIL
M33075A
HEAT
EXCHANGER
BLOWER
STEAM OR
FAN
POWERED
HUMIDIFIER
ALTERNATE MOUNTING LOCATION FOR DISCHARGE
SENSOR. WHEN SETTING THE LIMITS, BE SURE TO
CONSIDER THE AFFECT THAT THE HUMIDIFIER HAS
ON DELTA T.
MOUNT RETURN
SENSOR HERE
DOWNSTREAM OF
VENTILATOR OR
DEHUMIDIFIER
MOUNT
DISCHARGE
SENSOR HERE
ABOVE CENTER
OF A-COIL
UPSTREAM OF
STEAM OR FAN
POWERED
HUMIDIFIER
VENTILATOR
OR
DEHUMIDIFIER
M33076A
HEAT
EXCHANGER
BLOWER
MOUNT RETURN
SENSOR HERE
DOWNSTREAM OF
DEHUMIDIFIER
ALTERNATE MOUNTING LOCATION FOR DISCHARGE
SENSOR. WHEN SETTING THE LIMITS, BE SURE
TO CONSIDER THE AFFECT THAT THE DEHUMIDIFIER
HAS ON DELTA T.
MOUNT
DISCHARGE
SENSOR HERE
ABOVE CENTER
OF A-COIL
UPSTREAM OF
DEHUMIDIFIER
DEHUMIDIFIER
MOUNT RETURN
SENSOR HERE
MOUNT DOWNSTREAM
OF BYPASS HUMIDIFIER,
DEHUMIDIFIER OR
VENTILATOR
HEAT
EXCHANGER
BLOWER
VENTILATOR
OR
DEHUMIDIFIER
MOUNT
DISCHARGE
SENSOR HERE
MOUNT
DOWNSTREAM
OF BYPASS
HUMIDIFIER
BYPASS
HUMIDIFIER
M33078A