11
Product Data
Due to our policy of continuous product innovation, some specifications may change without notification.
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1
Nominal capacity is outside of AHRI Standard 1230 and based on the following conditions:
• Cooling – Indoor 80°F DB / 66°F WB
Water Temperature Entering: 86°F
• Heating – Indoor 68°F DB
Water Temperature Entering: 68°F
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
Refer to the Refrigerant Piping section of this manual for correct line sizing. Contractor must use LG
manufactured Y-Branch and Header Kits only. Designer must verify refrigerant piping design configura-
tion using LG’s computerized refrigerant piping software (LATS Multi V) to validate the pipe design.
Table 3: Triple-Frame 208-230V Heat Pump Units.
GENERAL DATA
ARWN Series Heat Pump Water Source Unit Specications
Combination Unit Model Number
30.0 Ton
ARWN360BAS4
36.0 Ton
ARWN432BAS4
Individual Component Model Numbers
ARWN072BAS4 x 1 + ARWN144BAS4 x 2 ARWN144BAS4 x 3
Cooling Performance
Nominal Cooling Capacity (Btu/h)
1
360,000 432,000
Heating Performance
Nominal Heating Capacity (Btu/h)
1
405,000 486,000
Operating Range (Entering Water Temperature)
Cooling (°F)
2
23 – 113 23 – 113
Heating (°F)
14 – 113 14 – 113
Compressor
Inverter Quantity
HSS DC Scroll x 3 HSS DC Scroll x 3
Oil/Type
PVE/FVC68D PVE/FVC68D
Unit Data
Refrigerant Type
R410A R410A
R410A Refrigerant Factory Charge (lbs)
12.8 + 12.8 + 12.8 12.8 + 12.8 + 12.8
Refrigerant Control/Location
EEV/Indoor Unit EEV/Indoor Unit
Max. Number Indoor Units/System
58 64
Sound Pressure dB(A)
3
Cooling/Heating
56/57 58/62
Net Unit Weight (lbs.)
280 + 280 + 280 280 + 280 + 280
Shipping Weight (lbs.)
302 + 302 + 302 302 + 302 + 302
Communication Cables
2 x 18 AWG 2 x 18 AWG
Heat Rejected to Equipment Room (Btu/h)
7,480 7,992
Heat Exchanger (Stainless Steel Plate)
Maximum Pressure Resistance (psi)
640 640
Flow at Rated Condition (GPM)
20.3 + 35.5 + 35.5 35.5 + 35.5 + 35.5
Range of Flow (GPM)
36.5 – 137 42.6 – 159.8
Total Heat of Rejection (Btu/h)
94,400 + 190,100 + 190,100 190,100 + 190,100 + 190,100
Total Heat of Absorption (Btu/h)
73,200 + 145,200 + 145,200 145,200 + 145,200 + 145,200
Pressure Drop (ft-wg)
3.7 + 9.2 + 9.2 9.2 + 9.2 + 9.2
Δt
4
(°F)
10.4 10.7
Piping
5
Liquid Line Connection (in., OD)
3/8 + 1/2+1/2 Braze 1/2+1/2+1/2 Braze
Vapor Line Connection (in., OD)
7/8 + 1-1/8 +1-1/8 Braze 1-1/8 +1-1/8 + 1-1/8 Braze
Water Inlet/Outlet Connection Size (in)
(1-1/2 + 1-1/2 Female) x3 (1-1/2 + 1-1/2 Female) x3
Condensate Drain (in)
3/4 Female 3/4 Female