Page 42
LGH/LCH420, 480, 540, 600
FIGURE 35
RT16 AND RT17 SENSORS
RT17
OUTDOOR AIR SENSOR
(access through the
control area)
RT16
RETURN
AIR SENSOR
FIGURE 36
RT6 SENSOR
RT6
DISCHARGE
AIR SENSOR
TABLE 19
TITLE 24 COMPLIANCE FREE COOLING SETPOINT
Climate Zone
Setpoint
(Single Sensible)
Setpoint
(Differential Sensible)
1, 3, 5, 11-16
75F 0F
2, 4, 10
73F 2F
6, 8, 9
71F 4F
7
69F 6F
1.5. Enthalpy Set Point
This setting pertains to the single enthalpy free cooling
mode only. The M3 Unit Controller will enable free cooling
when outdoor air enthalpy (A7) is less than the enthalpy set
point (Parameter 162 - ECON FREECL ENTH SP). Figure
37 shows the approximate enthalpy sensor output at
various temperatures and percentage of relative humidity.