Fig. 36 — economiser2 wiring, Fig. 35 — economi$erlv wiring – Carrier 48TJ016-028 User Manual
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LEGEND
DCV
— Demand Controlled Ventilation
lAQ
— Indoor Air Quality
LALS
— Low Temperature Compressor
Lockout Switch
OAT
— Outdoor-Air Temperature
POT
— Potentiometer
Potentiometer Detault Settings:
Power Exhaust Middle
Minimum Pos,
DCV Max.
DCV Set
Enthalpy
Fully Closed
Middle
Middle
C Setting
NOTES:
1. 620 ohm, 1 watt 5% resistor should be removed only when using differential
enthalpy or dry bulb.
2. If a separate field-supplied 24 v transformer is used for the lAQ sensor power
supply, it cannot have the secondary of the transformer grounded.
3.
For field-installed remote minimum position POT, remove black wire jumper
between P and PI and set control minimum position POT to the minimum
position.
Fig. 35 — EconoMI$erlV Wiring
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.
Fig. 36 — EconoMiSer2 Wiring
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