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1.800.627.4499
Premium Commercial Controls
ERV
UNIT CONFIGURATION
4.2.2 I/O Configuration
If using CO2, VOC, Room Static Pressure or Duct Static Pressure to control the fans, enable the
sensors here and adjust the scaling if needed. These are user supplied sensors.
If either heating or cooling was enabled, the unit also requires a CA Temperature sensor in the
discharge air duct. This may be included with RD units if heating or cooling was ordered with
the unit but will have to be placed in the duct. The sensor may also be included with heating
units purchased from RenewAire.
4.2.3 Field-Installed Sensors and General Wiring
All sensors are wired to an intermediate terminal, as shown. They factory wiring connects to the
controller itself. It is shown for troubleshooting purposes but should not be changed.
FIGURE 4.2.0 X3 TERMINALS
21
22
23
24
25
26
27
28
SENSOR 24VAC
CO2 LEVEL
SPACE PRESSURE
DUCT PRESSURE
CA TEMPERATURE
SENSOR COMMON
30
29
VOC LEVEL
FACTORY WIRING
FIELD WIRING
NOTE: If you choose
EV450 you will only
see information for
the supply fan as
both fans are run from
one motor.
