Carrier 48TM016-028 Installation, Start-Up And Service Instructions Manual page 26

LEGEND
DCV — Demand Controlled Ventilation
IAQ — Indoor Air Quality
LALS — Low Temperature Compressor
Lockout Switch
OAT — Outdoor-Air Temperature
POT — Potentiometer
NOTE 1
RUN
NOTE 2
50HJ540573
ACTUATOR
ASSEMBLY
DIRECT DRIVE
ACTUATOR
LEGEND
OAT — Outdoor Air Temperature Sensor
NOTES:
1. Switch on actuator must be in run position for economizer to operate.
2. 50HJ540573 actuator consists of the 50HJ540567 actuator and a harness with 500-ohm resistor.
Potentiometer Default Settings:
Power Exhaust Middle
Minimum Pos. Fully Closed
DCV Max. Middle
DCV Set Middle
Enthalpy C Setting
Fig. 36 — EconoMi$erIV Wiring
500 OHM
RESISTOR
Fig. 37 — EconoMi$er2 Wiring
NOTES:
1. 620 ohm, 1 watt 5% resistor should be removed only when using differential
enthalpy or dry bulb.
2. If a separate field-supplied 24 v transformer is used for the IAQ sensor power
supply, it cannot have the secondary of the transformer grounded.
3. For field-installed remote minimum position POT, remove black wire jumper
between P and P1 and set control minimum position POT to the minimum
position.
PINK
BLUE
OA T
26
4
3
7
RED
2
8
6
5
BLACK
1
10
11
9
WHITE
12
ECONOMISER2 PLUG