14 | WSU PRODUCT DATA
WSU PRODUCT DATA | 15
W
ater Source Unit Product Data
MUL
TI V W
ater V W
ater Source Unit Engineering Manual
© LG Electronics Canada, Inc., North York, ON Canada. All rights reserved. “LG” is a registered trademark of LG Corp.
© LG Electronics Canada, Inc., North York, ON Canada. All rights reserved. “LG” is a registered trademark of LG Corp.
Table 2: Multi V Water V 575V Units
Combination Unit Model Number
20.0
ARWM240CAS5
24.0
ARWM288CAS5
28.0 Ton
ARWM336CAS5
Individual Component Model Numbers
ARWM096CAS5 x 1
ARWM144CAS5 x 1
ARWM144CAS5 x 2
ARWM1
ARWM192CAS5
Cooling Performance
Nominal Cooling Capacity (Btu/h)
1
239,400
287,700
336,000
Heating Performance
Nominal Heating Capacity (Btu/h)
1
269,000
324,000
378,000
Operating Range (Entering Water Temperature)
Cooling (°F)
2
23 – 113
23 – 113
23 – 113
Heating (°F)
14 – 113
14 – 113
14 – 113
Synchronous Operation (°F)
23 – 113
23 – 113
23 – 113
Compressor
Inverter Quantity
HSS DC Scroll x 2
Oil/Type
PVE/FVC68D
Unit Data
Refrigerant Type
R410A
R410A Refrigerant Factory Charge (lbs)
9.9 + 9.9
9.9 + 9.9
9.9 + 9.9
Refrigerant Control/Location
EEV/Indoor Unit
Max. Number Indoor Units/System
2
39
45
55
Sound Pressure dB(A)
3
Cooling/Heating
55
57
59
Net Unit Weight (lbs.)
348 + 348
348 + 348
348 + 348 309 + 309
Shipping Weight (lbs.)
370 + 370
370 + 370
370 + 370
Communication Cables
5,6
2 x 18 AWG
Heat Exchanger (Stainless Steel Plate)
Maximum Pressure Resistance (psi)
640
640
640
Flow at Rated Condition (GPM)
25.4 + 35.5
35.5 + 35.5
35.5 + 50.7
Range of Flow (GPM)
30.5 – 91.4
35.5 - 106.5
43.1 - 129.3
Total Heat of Rejection (Btu/h)
316,000
380,200
443,600
Total Heat of Absorption (Btu/h)
245,400
293,600
340,400
Pressure Drop (ft-wg)
3.51 + 6.50
6.50 + 6.50
6.50 + 12.61
Δt
4
(°F)
10.4
10.7
10.3
Piping for Heat Recovery Operation7
Liquid Line Connection (in., OD)
3/8 + 1/2 Braze
1/2 + 1/2 Braze
1/2 + 5/8 Braze
Low Pressure Vapor Line Conn (in., OD)
7/8 + 1-1/8 Braze
1-1/8 + 1-1/8 Braze
1-1/8 + 1-1/8 Braze
High Pressure Vapor Line Conn (in., OD)
3/4 + 7/8 Braze
7/8 + 7/8 Braze
7/8 + 1-1/8 Braze
Piping for Heat Pump Operation
7
Liquid Line Connection (in., OD)
3/8 + 1/2 Braze
1/2 + 1/2 Braze
5/8 + 5/8 Braze
Low Pressure Vapor Line Conn (in., OD)
7/8 + 1-1/8 Braze
1-1/8 + 1-1/8 Braze
1-1/8 + 1-1/8 Braze
Piping for Water
7
Water Inlet/Outlet Connection Size (in)
(1-1/2 + 1-1/2 Fem) x2
(1-1/2 + 1-1/2 Fem) x2 (1-1/2 + 1-1/2 Fem) x2
Condensate Drain (in)
3/4 Female
3/4 Female
3/4 Female
Multi V Water V 575V Unit Specifications
GENERAL DATA
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.
3
Sound pressure levels are tested in an anechoic chamber under ISO 3745 standard.
4
Value is calculated as follows: Δt = Total Heat of Rejection/(Nominal Flow Rate x 500).
5
Communication cable between Master ODU to Slave ODU(s), and Master ODU to IDUs / HRUs to be 18 AWG, 2-conductor,
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.
7
LG requires that LATS software be used on all projects to ensure correct line sizing. Designer must verify the shop drawing design
against the as built design using LATS. Contractor must also use LG manufactured Y-Branch and Header Kits only.
Table 3: Multi V Water V 575V Units
Combination Unit Model Number
36.0 Ton
ARWM432CAS5
40.0 Ton
ARWM480CAS5
48.0
ARWM576CAS5
Individual Component Model Numbers
ARWM144CAS5 x 3
ARWM144CAS5 x 2
+ARWM192CAS5 x 1
ARWM192CAS5 x 3
Cooling Performance
Nominal Cooling Capacity (Btu/h)
1
430,500
472,500
571,200
Heating Performance
Nominal Heating Capacity (Btu/h)
1
486,000
536,000
642,000
Operating Range (Entering Water Temperature)
Cooling (°F)
2
23 – 113
23 – 113
23 – 113
Heating (°F)
14 – 113
14 – 113
14 – 113
Synchronous Operation (°F)
23 – 113
23 – 113
23 – 113
Compressor
Inverter Quantity
HSS DC Scroll x 3
Oil/Type
PVE/FVC68D
Unit Data
Refrigerant Type
R410A
R410A Refrigerant Factory Charge (lbs)
9.9 + 9.9 + 9.9
9.9 + 9.9 + 9.9
9.9 + 9.9 + 9.9
Refrigerant Control/Location
EEV/Indoor Unit
Max. Number Indoor Units/System
2
64
64
64
Sound Pressure dB(A)
3
Cooling/Heating
59
61
63
Net Unit Weight (lbs.)
348 + 348 + 348
348 + 348 + 348
348 + 348 + 348
Shipping Weight (lbs.)
370 + 370 + 370
370 + 370 + 370
370 + 370 + 370
Communication Cables
5,6
2 x 18 AWG
Heat Exchanger (Stainless Steel Plate)
Maximum Pressure Resistance (psi)
640
640
640
Flow at Rated Condition (GPM)
35.5 + 35.5 + 35.5
35.5 + 35.5 + 50.7
50.7 + 50.7 + 50.7
Range of Flow (GPM)
53.3 - 159.8
60.9 – 182.6
76.1 – 228.2
Total Heat of Rejection (Btu/h)
570,300
633,700
760,500
Total Heat of Absorption (Btu/h)
440,400
487,200
580,800
Pressure Drop (ft-wg)
6.50 + 6.50 + 6.50
6.50 + 6.50 + 12.61
12.61 + 12.61 + 12.61
Δt
4
(°F)
10.7
10.4
10.0
Piping for Heat Recovery Operation
7
Liquid Line Connection (in., OD)
1/2 + 1/2 + 1/2 Braze
1/2 + 1/2 + 5/8 Braze
5/8 + 5/8 + 5/8 Braze
Low Pressure Vapor Line Conn (in., OD)
1-1/8 + 1-1/8 + 1-1/8 Braze
1-1/8 + 1-1/8 + 1-1/8 Braze
1-1/8 + 1-1/8 + 1-1/8 Braze
High Pressure Vapor Line Conn (in., OD)
7/8 + 7/8 + 7/8 Braze
7/8 + 7/8 + 1-1/8 Braze
1-1/8 + 1-1/8 + 1-1/8 Braze
Piping for Heat Pump Operation
7
Liquid Line Connection (in., OD)
1/2 + 1/2 + 1/2 Braze
1/2 + 1/2 + 5/8 Braze
5/8 + 5/8 + 5/8 Braze
Low Pressure Vapor Line Conn (in., OD)
1-1/8 + 1-1/8 + 1-1/8 Braze
1-1/8 + 1-1/8 + 1-1/8 Braze
1-1/8 + 1-1/8 + 1-1/8 Braze
Piping for Water
7
Water Inlet/Outlet Connection Size (in)
(1-1/2 + 1-1/2 Fem) x3
(1-1/2 + 1-1/2 Fem) x3
(1-1/2 + 1-1/2 Fem) x3
Condensate Drain (in)
3/4 Female
3/4 Female
3/4 Female
Multi V Water V 575V Unit Specifications
GENERAL DATA
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.
3
Sound pressure levels are tested in an anechoic chamber under ISO 3745 standard.
4
Value is calculated as follows: Δt = Total Heat of Rejection/(Nominal Flow Rate x 500).
5
Communication cable between Master ODU to Slave ODU(s), and Master ODU to IDUs / HRUs to be 18 AWG, 2-con-
ductor, 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.
7
LG requires that LATS software be used on all projects to ensure correct line sizing. Designer must verify the shop
drawing design against the as built design using LATS. Contractor must also use LG manufactured Y-Branch and Header
Kits only.