53
LEGEND
RH — Relative Humidity
Fig. 48 — Psychrometric Chart for Enthalpy Control
NOTE: Partitions shown indicate both side supply (AW,AY,EW,EY) and vertical supply (AJ,AK,EJ,EK) units.
Fig. 49 — Economizer Details
CONTROL
CURVE
CONTROL POINT
(APPROX. DEG.)
AT 50% RH F (C)
A
73 (23)
B
70 (21)
C
67 (19)
D
63 (17)
