Typical Accessory Wiring; Econo Mizer W Iring--50H Eq003-006, 50Hjq004-012, 50Tfq004-012; Economiser Iv Wiring - 50Hjq014,016 Units - Carrier 50HJQ004-016 Product Data

TYPICAL ACCESSORY WIRING

ECONO MIZER W IRING--50H EQ003-006, 50HJQ004-012, 50TFQ004-012

LEGEND
IAQ — Indoor Air Quality
LA — Low Ambient Lockout Device
POT — Potentiometer
OAT — Outdoor-Air Temperature
RAT — Return-Air Temperature
AL — Ambient Limit
ECB — Economizer Control Board
IA — Indoor Air
IAQ — Indoor Air Quality
NOTE:
Potentiometer Defaults Settings:
Power Exhaust Middle
Minimum Pos. Fully Closed
DCV Max. Middle
DCV Set Middle
Enthalpy C Setting
ECONOMI$ER IV WIRING - 50HJQ014,016 UNITS
LEGEND
OA — Outdoor Air
OAS — Outdoor Air Sensor
RAS — Return Air Sensor
SAT — Supply Air Temperature
NOTES:
1. 620 ohm, 1 watt 5% resister should be removed only when using differen-
tial enthalpy or dry bulb.
2. If a separate field-supplied 24v 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.
176
C06076
C06093