LG PDRYCB320 Dry Contact for Thermostat User Guide
- June 6, 2024
- LG
Table of Contents
PDRYCB320
Dry Contact for Thermostat
Electrical:
Power Supply| 12 VDC (from indoor unit)
Surrounding Conditions:
Operating Temperature| 14 to 1580F
Storage Temperature| ‐4 to 1760F
Humidity| 0 to 98% (non‐condensing)
Unit Data:
Dimensions| 4‐1/8″ W x 3‐1/16″ H x 1‐3/8″ D
Contact Rating| 3A @ 125 VAC
Connectivity:
LG Communications| 30” Wiring Harness (included)
Standard Features:
- Control indoor unit operation with 3rd party thermostat or controller
- Inputs for control of Unit On/Off, Thermo On/Off, Mode (Cool/HeaFan), and Fan Speed (Low, Med, High).
- Universal input to set a desired setpoint using DC Voltage or resistance.
- Setpoint Tracking Logic for improved inverter utilization.
- Outputs for Operation and Error Status.
- Compatible with all Multi V and select DFS units.
Notes:
- For a complete list of compatible IDUs, contact your LG representative.
- Must follow installation instructions in the applicable LG installation manual.
Wiring:
For setting desired temperature using Universal Input:
2.5 ‐ 8.5 VDC (640F to 860F)
2.8 ‐ 8.5 (kOhm) (640F to 860F)
Parts Description:
CN_INDOOR: Connector for indoor unit.- VS_SW: Switch to select External Voltage or Non-Voltage for input contact signal.
- CN_OUT (O1, O2): Output terminal to show whether the indoor unit is operating (Relay contact).
- CN_OUT (E3, E4): Output terminal to show whether there is an error with the indoor unit (Relay contact).
- TEMP_SW: Switch to set the desired temperature of the indoor unit.
- OPER_SW: Switch to select whether to use a set function of Dry contact.
- CN_OPER: Input terminal for thermo & operation signal.
- CN_MODE: Input terminal for Mode signal.
- CN_WIND: Input terminal for Windsignal.
- LD01: LED to display the status of Dry contact Module.
- RST_SW: Reset switch.
- CN_AI: Input terminal for Universal Input. 13.SETTING_SW: Switch to select the Universal Input.
For input contact voltage: DC 5‐12 V, 24 V~
SB_DryContact_Therm_PDRYCB320_2020_01_30_093624
or continual product development, LG reserves the right to change specifications without notice. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG Life’s Good” is a registered trademark of LG Corp. /www.lghvac.com
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