LG ARNU363DDA4 Installation Manual page 30

Economizer for split rooftop units (rtu)
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ECONOMIZER CONTROLLER
Menu Structure
Table 7: Standard JADE W7220 Controller Configuration.
Category
Controller Menu
MAT SET
LOW T LOCK
DRYBULB SET
ENTH CURVE
MIN POS
MIN POS H
MIN POS L
INSTALL
EQUIPMENT
AUX2 I
FAN TYPE
AUX1 OUT
OCC I
*Available on Firmware 1.15 June 2018 and later.
• The default setting on the W7220 controller is for a "Fan Type" with 2 speeds� It should be changed to 1 speed� The setting under SYSTEM
SETUP > FAN TYPE must be changed to 1 Speed�
• The default setting on the W7220 controller is for a "STG3 DLY" with 2�0h� It should be changed to OFF�
• The default setting on the W7220 controller is for a "MIN POS" with 4�4V� LG RTU can cover 4�4V or less�
• Table 8 illustrates the complete hierarchy� Menu parameters may be different depending on computer configuration�
Table 8: Menu Structure.
Parameter
Menu
Parameter
Default Value
ECON AVAIL
ECONOMIZING
OCCUPIED
HEAT PUMP
COOL Y1─IN
COOL Y1─OUT
COOL Y2─IN
COOL Y2─OUT
MA TEMP
nn°F (or °C)
30
Item Default
53°F
32°F
63°F
ES3
2.8 Vdc
NA
NA
1/1/2010
CONV
W1*
2 speed*
NONE
INPUT
Parameter Range
and Increment
ECONOMIZING AVAILABLE YES = economizing available; the system can
NO
YES/NO
use outside air for free cooling when required.
ECONOMIZING ACTIVE
YES = Outside air being used for 1st stage cooling.
NO
YES/NO
NO = Economizing not active.
OCCUPIED
YES = OCC signal received from space thermostat or unitary controller.
NO
YES/NO
YES = 24 Vac on terminal OCC.
NO = 0 Vac on terminal OCC.
HEAT PUMP MODE
COOL
n/a
(Not available on 2-Speed configuration)
HEAT
FIRST STAGE COOLING DEMAND (Y1---IN)
Y1-I signal from space thermostat or unitary controller for Cooling Stage 1.
OFF
ON/OFF
ON = 24 Vac on terminal Y1-I
OFF = 0 Vac on terminal Y1-I
FIRST STAGE COOLING RELAY OUTPUT
OFF
ON/OFF
ON = 24 Vac on terminal Y1-O; Stage 1 mechanical cooling called on.
OFF = 0 Vac on terminal Y1-O; no mechanical cooling.
SECOND STAGE COOLING DEMAND (Y2---IN)
Y2-I signal from space thermostat or unitary controller for Cooling Stage 2.
OFF
ON/OFF
ON = 24 Vac on terminal Y2-I
OFF = 0 Vac on terminal Y2-I
SECOND STAGE COOLING RELAY OUTPUT
OFF
ON/OFF
ON = 24 Vac on terminal Y2-O; Stage 2 mechanical cooling called on.
OFF = 0 Vac on terminal Y2-O; no Stage 2 mechanical cooling
MIXED AIR TEMPERATURE, Cooling Mode
0 to 140°F
Displays value of measured mixed/cooled air from MAT sensor in fan section.
(-18 to +60°C)
Displays --.- if not connected, short or out-of-range.
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.
Set To:
38° to 70°F
-45° to +80°F
48° to 80°F
Only displayed if using single DB OA sensor
ES1 to ES5
Only displayed if using a single enthalpy OA sensor
2 to 10 Vdc
Only displayed if set up for single speed unit
NA
Only displayed if set up for 2 speed unit
NA
Only displayed if set up for 2 speed unit
Current date
CONV
W1
1 speed
SYS
Set to SYS for remote FDD monitoring
INPUT
Note
Always set to CONV
Always set to W1
Always set to 1 Speed
Always set to INPUT
Notes

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