21
+
+
+
+
S
S
TAN
TAN
VIOLET
VIOLET
S
O
S
R
ECONOMISER2 CONTROLLER
TR
TR1
Fig. 30 — Enthalpy Changeover Set Points
NOTE: Remove the 620-ohm resistor between SR and + before installing a differential enthalpy or adjustable dry bulb sensor.
Fig. 31 — Differential Enthalpy Wiring