General Data - LG Multi V Water V ARWM072CAS5 Engineering Manual

PRODUCT FEATURES AND BENEFITS
MULTI V Water V Water Source Outdoor Units
Simplified Installation
Cooling and heating systems that use the
LG MULTI V Water V simplify and reduce the mechanical and control system design time. The designer no longer has to be concerned with
interconnecting chilled and condenser water piping, air-distribution duct systems, matching and selecting chillers, towers, pumps, coils, fans,
air handlers, or Variable Air Volume (VAV) boxes.
System integration with existing building management systems has never been easier. Because all of the MULTI V Water V system compo-
nents are engineered and provided by LG, the system components and controls come pre-engineered and do not need custom programming
from third-party contractors.
Operating Range
The MULTI V Water V product line includes capacities from six (6.0) to forty-eight (48.0) tons, and features a connected indoor unit combina-
tion ratio of 50% to 130%. Operating ranges include:
Entering Water Temperatures
• 23–113 °F for cooling mode
• 14–113 °F for heating mode
• 23–113 °F for synchronous mode (heat recovery systems only)
Compact Size
All Multi V Water V 575V water source unit frames have the same physical footprint: 30-3/8" wide by 21-1/2" deep. Systems can be designed
with one, two, or a maximum of three water source unit frames.
Other Features
• Inverter Scroll Compressors
• Elevation Advantage
• Smaller Footprint
• Precision Load Matching
• AHRI 1230 Certification
Figure 5: Triple Frame MULTI V Water V Water Source Unit.
© LG Electronics Canada, Inc., North York, ON Canada. All rights reserved. "LG" is a registered trademark of LG Corp.
12 | WSU PRODUCT DATA
Table 1: Multi V Water V 575V Units
6.0 Ton
Combination Unit Model Number
ARWM072CAS5 ARWM096CAS5
Individual Component Model Numbers –
Cooling Performance
Nominal Cooling Capacity (Btu/h) 72,000
1
Heating Performance
Nominal Heating Capacity (Btu/h) 81,000
1
Operating Range (Entering Water Temperature)
Cooling (°F) 23 – 113
2
Heating (°F) 14 – 113
Synchronous Operation (°F) 23 – 113
Compressor
Inverter Quantity
Oil/Type
Unit Data
Refrigerant Type
R410A Refrigerant Factory Charge (lbs) 9.9
Refrigerant Control/Location
Max. Number Indoor Units/System 13
2
Sound Press dB(A) 3 Cooling/Heating 46
Net Unit Weight (lbs.) 348
Shipping Weight (lbs.) 370
Communication Cables
5,6
Heat Exchanger (Stainless Steel Plate)
Maximum Pressure Resistance (psi) 640
Flow at Rated Condition (GPM) 20.3
Range of Flow (GPM) 10.2 – 30.5
Total Heat of Rejection (Btu/h) 94,100
Total Heat of Absorption (Btu/h) 74,200
Pressure Drop (ft-wg) 2.34
Δt 4 (°F) 9.3
Piping for Heat Recovery Operation
7
Liquid Line Connection (in., OD) 3/8 Braze
Low Press Vapor Line Conn (in., OD) 3/4 Braze
High Press Vapor Line Conn (in., OD) 5/8 Braze
Piping for Heat Pump Operation 7
Liquid Line Connection (in., OD) 3/8 Braze
Low Pressure Vapor Line Conn (in., OD) 3/4 Braze
Piping for Water
7
Water Inlet/Outlet Connection (in) 1-1/2 Fem
Condensate Drain (in) 3/4 Female
1 Rated capacity is certified under AHRI Standard 1230. Ratings are subject to change without notice. Current certified ratings are
available at www.ahridirectory.org.
2 When entering water temperature is lower than 59ºF, variable water flow control kit PWFCKN000 is required.
Sound pressure levels are tested in an anechoic chamber under ISO 3745 standard.
3
Value is calculated as follows: Δt = Total Heat of Rejection/(Nominal Flow Rate x 500).
4
Communication cable between Master ODU to Slave ODU(s), and Master ODU to IDUs / HRUs to be 18 AWG, 2-conductor,
5
© LG Electronics Canada, Inc., North York, ON Canada. All rights reserved. "LG" is a registered trademark of LG Corp.

GENERAL DATA

Multi V Water V 575V Unit Specifications
8.0 Ton 10.0 Ton 12.0
16.0 Ton
ARWM192CAS5
ARWM021CAS5 ARWM144CAS5
– – – –
96,000 119,700 144,000 192,000
108,000 135,000 162,000 216,000
23 – 113 23 – 113 23 – 113 23 – 113
14 – 113 14 – 113 14 – 113 14 – 113
23 – 113 23 – 113 23 – 113 23 – 113
HSS DC Scroll x 1
PVE/FVC68D
R410A
9.9 9.9 9.9 9.9
EEV/Indoor Unit
16 20 23 32
48 54 54 58
348 348 348 348
370 370 370 370
2 x 18 AWG
640 640 640 640
25.4 30.4 35.5 50.7
12.7 – 38.1 15.2 – 45.6 17.8 – 53.3 25.4 – 76.1
125,900 157,900 190,100 253,500
98,600 122,700 146,800 193,600
3.51 4.94 6.50 12.61
9.9 10.4 10.7 10.0
3/8 Braze 1/2 Braze 1/2 Braze 5/8 Braze
7/8 Braze 1-1/8 Braze 1-1/8 Braze 1-1/8 Braze
3/4 Braze 3/4 Braze 7/8 Braze 1-1/8 Braze
3/8 Braze 1/2 Braze 1/2 Braze 5/8 Braze
7/8 Braze 1-1/8 Braze 1-1/8 Braze 1-1/8 Braze
1-1/2 Fem 1-1/2 Fem 1-1/2 Fem 1-1/2 Fem
3/4 Female 3/4 Female 3/4 Female 3/4 Female
twisted, stranded, shielded. Ensure the communication cable shield is properly grounded to the Master ODU chassis only.
Do not ground the ODU to IDUs / HRUs communication cable at any other point. Wiring must comply with all applicable local and
national codes.
6 Power wiring is field provided, solid or stranded, and must comply with the applicable local and national codes.
LG requires that LATS software be used on all projects to ensure correct line sizing. Designer must verify the shop drawing design
7
against the as built design using LATS. Contractor must also use LG manufactured Y-Branch and Header Kits only.
WSU PRODUCT DATA | 13