Carrier WeatherMaster 48HC04 Service And Maintenance Instructions page 47

8
7
LEGEND
DCV — Demand Controlled Ventilation
IAQ — Indoor Air Quality
LA — Low Ambient Lockout Device
OAT — Outdoor-Air Temperature
POT — Potentiometer
RAT — Return-Air Temperature
Potentiometer Defaults Settings:
Power Exhaust Middle
Minimum Pos. Fully Closed
DCV Max. Middle
DCV Set Middle
Enthalpy C Setting
FOR OCCUPANCY CONTROL
REPLACE JUMPER WITH
FIELD-SUPPLIED TIME CLOCK
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 trans-
former 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.
Fig. 67 — EconoMi$er IV Wiring
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