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Table 1: General Data—ARWN038GA2, ARWN048GA2, ARWN053GA2 Water Mini Units.
Model Number
Nominal Capacity / Input Power
Cooling Capacity (Btu/h)
1
Cooling Input Power (kW)
Heating Capacity (Btu/h)
1
Heating Input Power (kW)
Compressor
Type
Power Supply (volt/hz/phase)
MCA (A)
MOP (A)
System Data
Sound Pressure (dBA)
3
Heat Rejected to Equipment Room (Btu/h)
Net Weight (lbs)
Shipping Weight (lbs)
Dimensions (W x H x D)
Max. Qty Indoor Units
Refrigerant Piping Connections
Vapor Line OD (in)
Liquid Line OD (in)
Expansion Device
Factory Refrigerant Charge (R410A [lbs])
Water Side
Heat Exchanger
Water Volume in Heat Exchanger (gal.)
Water Inlet/Outlet Connection
Size (in)
Nominal Flow Rate Total (GPM)
Range of Flow (GPM)
Entering water temp. range (°F)– Cooling
Entering water temp. range (°F)– Heating
Total Heat of Rejection (Btu/h)
Total Heat of Absorption (Btu/h)
Pressure Drop (ft)
Maximum Water Pressure (psi)
ΔT (°F)
5
Cooling – Indoor 80°F DB/66°F WB, Water Temp. Entering 86°F;
1
Heating- Indoor 68°F DB, Water Temp. Entering 68°F.
Voltage tolerance is ±10%.
2
Sound pressure levels as tested in anechoic chamber under ISO
3
Standard 3745.
Table 2: 208-230V, 60Hz, 1-Phase Water Mini Unit Electrical Characteristics.
Nominal Tons
Unit Model No.
3.0
ARWN038GA2
4.0
ARWN048GA2
4.4
ARWN053GA2
MCA = Minimum Circuit Ampacity.
MOP = Maximum Overcurrent Protection is calculated as follows: (Largest motor FLA x 2.25) + (Sum of
other motor FLA) rounded down to the nearest standard fuse size.
Allowable voltage range is between 208–230 volts only (tolerance is 10%).
Maximum allowable voltage imbalance is 2%.
Water Mini Unit Specifications and Electrical Data
3.0 Ton
ARWN038GA2
38,200
2.1
42,600
2.2
Inverter Rotary
208-230 / 60 / 1
2
26
45
52
512
168
181
20-5/8 x 42-1/2 x 13-1/8
4
3/4 Braze
3/8 Braze
Electronically Controlled (EEV) Electronically Controlled (EEV) Electronically Controlled (EEV)
2.2
Stainless Steel Plate
0.2
1-1/4 FPT
10.6
5.5-13.3
50-113
23-113
44,330
35,087
4.7
640
Refer to the Refrigerant Piping Section of this manual for correct
4
line sizing. Contractor MUST use LG manufactured Y-branch fittings
only. Designer must verify refrigerant piping design configuration
using LG's computerized refrigerant piping CAD/calculation (LATS)
Software to layout and design the refrigerant piping system.
Compressor Qty.
1
1
1
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.
4.0 Ton
ARWN048GA2
47,800
54,600
Inverter Rotary
208-230 / 60 / 1
20-5/8 x 42-1/2 x 13-1/8
6
3/4 Braze
3/8 Braze
Stainless Steel Plate
1-1/4 FPT
6.9-16.5
50-113
23-113
55,550
44,697
8
Compressor Motor RLA
20.8
21.2
21.6
Power wiring to be sized to meet local or NEC codes.
Measurements are taken with no attenuation and units operating at full load nominal operating
condition.
Measurements are taken 4.9 feet above the finished floor and a distance of 3.3 feet from the face of the
fan discharge.
GENERAL DATA
4.4 Ton
ARWN053GA2
2.7
2.9
Inverter Rotary
208-230 / 60 / 1
26.5
45
53
512
168
181
20-5/8 x 42-1/2 x 13-1/8
8
3/4 Braze
3/8 Braze
2.2
Stainless Steel Plate
0.2
1-1/4 FPT
13.2
8.3-19.9
6.9
640
8
Calculated from ∆T = Total Heat of Rejection / (Nominal flow rate
5
x 500).
MSC
MCA
-
26
-
26.5
-
27
52,900
3.2
61,400
3.5
27
45
54
512
168
181
9
2.2
0.2
15.9
50-113
23-113
56,640
49,448
9.5
640
7
MOP
45
45
45
9
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