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ERV
12
OVERVIEW
1.3 TEMPERATURE SENSORS
There are four temperature sensors installed in each ERV. These are NTC sensors that have
a Carel curve. The curve characteristics can be found in the Reference section. They are
located at:
u
One at the inlet side of the EA Fan cone
u
One at the inlet side of the SA Fan cone
u
One at the entrance of the air intake to measure outdoor air (OA) temperature
u
One at the entering RA duct of the unit
If a unit has heating and/or cooling, there is also a fifth CA sensor that is included but needs to
be installed down the duct past the heating and cooling.
Humidity transducers are mounted in the OA and RA compartments and provide an output from
0–10VDC that is proportional to 0–100% Relative Humidity.
FIGURE 1.3.0 DUCT TEMPERATURE SENSOR
FIGURE 1.4.0 TEMPERATURE AND HUMIDITY SENSOR
1.4 COMBINATION TEMPERATURE AND HUMIDITY SENSORS
NOTE: If an optional
internal heating
device is selected
the CA duct sensor
may need to be installed at
least three duct diameters
away from the ERV unit
CA outlet.
