RT-SVD03G-EN 103
Economizer Damper Enthalpy Layout
Table 38. Choice of Enthalpy Method
Method used to
determine economizer
effectiveness Required Data
Comparative Enthalpy
MAS, OAT, OAH,
RAT, RAH
Reference Enthalpy MAS, OAT, OAH
Reference Dry Bulb MAS, OAT
Unit will not economize
MAS or OAT data
is invalid or
unavailable
Figure 60. Economizer
Return Air Humidity Sensor
Return Air Temp Sensor
Outside Air Humidity Sensor
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