LG ARNU363DDA4 Installation Manual page 32

ECONOMIZER CONTROLLER
Menu Structure
Table 5: Menu Structure, continued.
Menu Parameter
MAT SET
LOW T LOCK
DRYBLB SET
DRYBLB DIF
(Available firmware 1.15,
June 2018 and later
ENTH CURVE
DCV SET
MIN POS
MIN POS L
MIN POS H
VENTMAX L
VENTMAX H
VENTMIN L
VENTMIN H
ERV OAT SP
EXH1 SET
EXH1 L SET
EXH1 H SET
EXH2 L SET
EXH2 H SET
32
Parameter Parameter Range and
Default Value Increment
38° to 70°F (3° to
53°F (12°C)
18°C); increment by 1
-45° to +80°F (-43° to
32°F (0°C) +27°C); increment
by 1
48° to 80°F (9° to 27°C);
63°F (17°C)
increment by 1
0°F 0 to 6°F; increment by 2
ES1, ES2, ES3, ES4, or
ES3
ES5
500 to 2000 ppm;
1100 ppm
increment by 100
2.8 V 2 to 10 Vdc
3.2 V 2 to 10 Vdc
2.8 V 2 to 10 Vdc
2.8 V 2 to 10 Vdc
4.4 V 2 to 10 Vdc
2.25 V 2 to 10 Vdc
2.8 V 2 to 10 Vdc
0° to 50°F (-18° to
32°F (0°C)
+10°C); increment by 1
50% 0 to 100%
0 to 100%; increment
65%
by 1
0 to 100%; increment
50%
by 1
0 to 100%; increment
80%
by 1
0 to 100%; increment
75%
by 1
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
MIXED AIR SETPOINT
Setpoint determines where the economizer will modulate the OA
damper to maintain the mixed air temperature.
COMPRESSOR LOW TEMPERATURE LOCKOUT Setpoint determines
outdoor temperature when the mechanical cooling cannot be
turned on.
OA DRY BULB TEMPERATURE CHANGEOVER SETPOINT
Setpoint determines where the economizer will assume outdoor air
temperature is good for free cooling; e.g.: at 63°F (17°C), unit will
economize at 62°F (16.7°C) and below and not economize at 64°F
(17.8°C) and above. There is a 2°F (1.1°C) deadband. DRYBULB SET
is only displayed if the economizer has a single dry bulb sensor.
Drybulb Differential will only show if using dual drybulb, i.e., when
an outdoor air temperature sensor C7250 is attached to OAT terminals,
and a C7400S enthalpy sensor is wired to S-Bus and configured for
RAT (return air). Free cooling will be assumed whenever OA temp is at
or below RAT minus this drybulb differential setting.
ENTHALPY CHANGEOVER CURVE (Requires enthalpy sensor option)
Enthalpy boundary "curves" for economizing using single enthalpy.
DEMAND CONTROL VENTILATION SETPOINT Displays only if CO2
sensor is connected. Setpoint for Demand Control Ventilation of space.
Above the setpoint, the OA dampers will modulate open to bring in
additional OA to maintain a space ppm level below the setpoint
VENTILATION MINIMUM POSITION. Only displayed if controller is set
for single speed unit under FANTYPE, and if DCV is NOT used.
VENTILATION MINIMUM POSITION AT LOW SPEED Displays ONLY if
used on 2 speed units and CO2 sensor is NOT used.
VENTILATION MINIMUM POSITION AT HIGH SPEED Displays ONLY
if used on 2 speed units and CO2 sensor is NOT used.
DCV MAXIMUM DAMPER POSITION AT LOW SPEED (Requires CO2
sensor connected)
DCV MAXIMUM DAMPER POSITION AT HIGH SPEED (Requires CO2
sensor connected)
DCV MINIMUM DAMPER POSITION AT LOW SPEED (Requires CO2
sensor connected)
DCV MINIMUM DAMPER POSITION AT HIGH SPEED (Requires CO2
sensor connected)
ENERGY RECOVERY VENTILATION UNIT OUTDOOR AIR
TEMPERATURE SETPOINT Only displayed when AUX1 O = ERV
Exhaust fan set point for single speed units. Based on OA Damper
position to activate power exhaust.
EXHAUST FAN SETPOINT AT LOW SPEED (on 2 speed unit) Setpoint
for OA damper position when exhaust fan is powered by the economizer
EXHAUST FAN SETPOINT AT HIGH SPEED (on 2 speed unit) Setpoint
for OA damper position when exhaust fan is powered by the economizer
EXHAUST FAN STAGE 2 SETPOINT AT LOW SPEED Setpoint
for OA damper position when exhaust fan 1 is powered by the
economizer� Only used when AUX1-O is set to EHX2�
power exhaust kits have only 1 speed, therefore EXH2 is not applicable.
EXHAUST FAN STAGE 2 SETPOINT AT HIGH SPEED Setpoint
for OA damper position when exhaust fan 1 is powered by the
economizer� Only used when AUX1-O is set to EHX2�
power exhaust kits have only 1 speed, therefore EXH2 is not applicable.
Notes
Standard
Standard