Related Manuals for LG ARND DCR4 Series
Summary of Contents for LG ARND DCR4 Series
- Page 1 LG SPLIT COMPACT DEDICATED OUTDOOR AIR SYSTEM (DOAS) INSTALLATION MANUAL Variable Refrigerant Flow Split Compact DOAS ARND***DCR4 Series (1,500 and 2,000 CFM)
- Page 2 4. For more technical materials such as submittals, catalogs, engineering manuals, and forms, visit www.lghvac.com. For continual product development, LG Electronics U.S.A., Inc. reserves the right to change specifications without notice. © LG Electronics U.S.A., Inc.
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Page 3: Table Of Contents
AC Smart / ACP Controller Setup ..................................52-53 BACnet / Modbus Point List ....................................54-57 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. -
Page 4: Safety Precautions
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. - Page 5 DOAS fan assembly. Doing so may cause product malfunction. 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.
- Page 6 Failure to carefully read and follow all instructions in this manual can result in equipment malfunction or property damage. 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.
- Page 7 There is risk of unit failure. 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.
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Page 8: Unit Nomenclature
R = Without Energy Recovery Wheel Generation 4 = Fourth 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. -
Page 9: Product Data
Hot Gas 3D Plug Fan Reheat Coil ECM Motor 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. -
Page 10: General Data
Actual discharge air temperatures may vary from discharge air temperature set-point due to changes in outdoor air processing loads. 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. -
Page 11: Electrical Data
MOP : Maximum Overcurrent Protection. applicable local and national codes. 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. -
Page 12: Installation
2. Rotate the fan wheel(s) by hand to ensure parts are not in contact with one another and are causing friction / damage. Assemblies • Blower - One plenum-type fans (LG 3D Plug). All units are equipped with a plenum fan for supply air. • Coils - Evaporator Coil and Reheat Coil. -
Page 13: Service Clearances, Lifting
Failure to follow proper instructions could result in property damage. 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. -
Page 14: Ductwork, Access Holes, Condensate Drain Connection
Y-45 fitting. 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. -
Page 15: Condensate Drain Connection / Drain Piping
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. -
Page 16: Common Drainage System
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. -
Page 17: General Refrigerant Piping System
LG offers, free of charge, LG Air Conditioner Technical Solution (LATS) software—a total design solution for LG air conditioning systems. To reduce the risk of designing an improper applied system or one that will not operate correctly, LG requires that LATS software be used on all projects. -
Page 18: Lg Air Conditioner Technical Solution (Lats)
LATS can generate an Excel GERP report that can imported into the LG SOPS pricing and ordering system. -
Page 19: Refrigerant Safety / Selecting Piping
• Remove the smallest space from the system and serve it with a smaller mini-split system. Selecting Field-Supplied Copper Piping For DOAS Units LG prefers the use of hard drawn copper in pipe segments connecting a Dedicated Outdoor Air System (DOAS) product and a heat recovery outdoor unit. -
Page 20: Piping Handling
1 hour. 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. -
Page 21: Brazing Procedure
ARND153DCR4 ARND203DCR4 Liquid Low Pressure 1-1/8 1-1/8 High Pressure 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. -
Page 22: Doas Layout Example / Selecting The Piping Size
REFRIGERANT PIPING SYSTEM INSTALLATION DOAS Layout Example / Selecting the Piping Size erant system rules, review the information in this entire piping section, see the LG Split Compact DOAS Engineering Manual, and follow the LATS diagram. Example: Triple-Frame Multi V 5 Heat Recovery System with Three (3) DOAS Units Connected Figure 11: DOAS Layout Example / Pipe Sizing. - Page 23 Y-branch and the DOAS unit must be calculated by two. • feet. 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.
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Page 24: Insulation
PVC, aluminum vapor barrier, or alternatively placed in a weather-resistant enclosure such as a pipe rack with a top cover; and meet local codes. LG-provided Y-branches are shipped from the factory with pre-formed peel-and-stick foam insulation jackets, with a 1.84 lb./ft3 density, 1/2 inch thickness, and meet UL94 MF-1 flammability. -
Page 25: Electrical System
Failure to properly provide a NEC-approved earth ground can result in property damage and equipment malfunction. • sors and other components. 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. -
Page 26: Wiring / Connections
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. -
Page 27: Internal Routing
Do not include splices or wire nuts in the communication cable. 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. -
Page 28: Outdoor Unit To Doas Wiring / Cable System
Figure 18: Communications Cable Between Main Outdoor Unit and Sub Unit. Outdoor Unit. 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. - Page 29 Operating the system in reverse phase may break the compressor and other unit com- ponents. 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.
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Page 30: Electrical Components
RS-485 1 RS-485 2 Relay 1 Relay 2 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. -
Page 31: Terminal Connections For Electrical Components
• See the wiring schematics shipped with the unit for factory-configured terminal connection points for all units. Figure 19: CAREL Control Board Layout. 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. - Page 32 If the fan is operating, it indicates as unit on. 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.
- Page 33 Space / Return Duct Relative Humidity (Field Option) 0 – 10Vdc -130-210°F 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.
- Page 34 Outdoor Air Temperature After Wheel NTC 10k -130-210°F 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.
- Page 35 Reheat Coil EEV Step Control 0 - 1,350 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.
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Page 36: Field-Mounted Sensors
Check the upper and lower limits of the sensor range. To display the correct temperature value, the upper and lower limit values of the range must be set through the controller. Example: CO 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. -
Page 37: Pre-Commissioning
• Do not apply power to the units sections of the piping system, making the leak test inconclusive. Contact your LG Applied Rep or service technician for the procedure to if the power has been applied. • For multi-frame outdoor units, connect the nitrogen cylinder regulator to the gauge manifold, then connect the gauge manifold to the Schrader port on the service port of only one outdoor unit, preferably the Sub outdoor unit that is farthest away from the refrigerant piping system and connected indoor units / heat recovery units. - Page 38 Farthest Sub outdoor unit is the Sub outdoor unit installed farthest away from the refrigerant piping system / DOAS unit. 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.
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Page 39: Triple Evacuation
Do not open the outdoor unit service valves and release the factory refrigerant charge until the LG trained commissioner authorizes to do so. The system must be left in vacuum until the LG trained commissioner verifies the quality of the evacuation. - Page 40 If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle will malfunction and the unit will be damaged. 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.
- Page 41 Farthest Sub outdoor unit is the Sub outdoor unit installed farthest away from the refrigerant piping system / DOAS unit. 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.
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Page 42: Refrigerant Charge Worksheet
Improper installation could result in physical injury and / or death. 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. -
Page 43: Start-Up / Checks
14. Record the installation date: Record the installation date on the accessory REQUEST FOR THE INDICATION label and attach the label on the back of the front panel. 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. -
Page 44: Doas Controller Setup
3. Type in IP address 192.168.1.101 (factory-configured). Figure 29: Connecting to the Web UI. 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. - Page 45 DOAS Unit Address Settings LG DOAS can be connected up to a maximum of four (4) units on a Multi V 5 heat recovery outdoor unit system. If more than two (2) DOAS units are installed, the DOAS / heat recovery unit (integral part of the Split Compact DOAS) addresses must match. Factory set value is 0.
- Page 46 Modbus Sub Address: 5 Sub 2 Modbus Sub Address: 3 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.
- Page 47 2. Sequentially click two keypad buttons (Main, Alarm, Escape, Up, Enter, Down). 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.
- Page 48 Supply air fan status. Rotation indicates airflow; static blades indicate no airflow. Cooling Heating Economizing Dehumidifying Defrost 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.
- Page 49 Navigation section for instructions about moving through menu screens. Figure 36: Menu Map. 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.
- Page 50 Figure 43: Checking the Software Version (Step 8). 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.
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Page 51: Central Controller Setting
CAREL Modbus SubAddress = 18 (Hex), and AC Smart or ACP Address = 12 (Hex) (For ARND**DC DOAS models) Figure 45: Device I.D. Screen. 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. -
Page 52: Ac Smart / Acp Controller Setup
Figure 51: Clicking “Send All” to Finish Adding Devices (Step 6). 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. - Page 53 Figure 54: Selecting “View Details” (Step 9). Figure 55: Selecting “Info” (Step 10). 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.
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Page 54: Bacnet / Modbus Point List
Opening Position of I072_MXDamperOpenRate ReadCOV_NoWrite 30073 Input Recirculation Air Damper 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. - Page 55 ODU Main Inverter #2 Phase I9043_ODU1_Inv2PhaseCT Read_NoWrite 39044 Input Current 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.
- Page 56 ODU Sub #1 Inverter #2 DC Link Read_NoWrite 39148 Input 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.
- Page 57 Read_ C001_Occupancy Unit Occupancy Occupied Unoccupied Coil Commandable 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.
- Page 58 20001747 ISO 9001: 2008 LG ELECTRONICS INC. LG Electronics, U.S.A., Inc. Air Conditioning Technologies 4300 North Point Parkway Alpharetta, Georgia 30022 New Issue: IM_Split_Compact_DOAS_02_21 www.lghvac.com...