15
Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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GENERAL DATA
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Type
Standard Wall-Mounted – SC Chassis Standard Wall-Mounted – SV Chassis
ARNU183SCL4 ARNU243SCL4 ARNU303SVA4 ARNU363SVA4
Cooling Mode Performance
Capacity (Btu/h) 19,100 24,200 30,000 35,500
Power Input
1
(W) 39.5 39.5 67.0 104.0
Heating Mode Performance
Capacity (Btu/h) 21,500 27,300 32 000 37 000
Power Input
1
(W) 39.5 39.5 67.0 104.0
Entering Mixed Air
Cooling Max (°F WB) 76 76 76 76
Heating Min (°F DB) 59 59 59 59
Unit Data
Refrigerant Type
2
R410A R410A R410A R410A
Refrigerant Control EEV EEV EEV EEV
Sound Pressure
3
dB(A) (H/M/L) 38 / 35 / 33 43 / 39 / 35 49 / 44 / 42 52 / 47 / 43
Net Unit Weight (lbs.) 31 31 37 37
Shipping Weight (lbs.) 37 37 48 48
Communication Cable
4
(No. x AWG) 2 x 18 2 x 18 2 x 18 2 x 18
Fan
Type Cross Flow Cross Flow Cross Flow Cross Flow
Quantity 1111
Motor/Drive Brushless Digitally Controlled / Direct
Airflow Rate H/M/L (CFM) 441 / 424 / 399 494 / 449 / 406 812 / 706 / 600 918 / 812 / 671
Piping
Liquid Line (in., O.D.) 1/4 Flare 3/8 Flare 3/8 Flare 3/8 Flare
Vapor Line (in., O.D.) 1/2 Flare 5/8 Flare 5/8 Flare 5/8 Flare
Condensate Line (in., I.D.) 5/8 5/8 5/8 5/8
EEV: Electronic Expansion Valve
Power wiring is field supplied and must comply with the applicable local and national
codes.
This unit comes with a dry nitrogen charge.
This data is rated 0 ft above sea level, with 25 ft of refrigerant line per indoor unit and a 0 ft
level difference between outdoor and indoor units. All capacities are net with a combina-
tion ratio between 95-105%.
Cooling capacity rating obtained with air entering the indoor coil at 80ºF dry bulb (DB) and
67ºF wet bulb (WB) and outdoor ambient conditions of 95ºF dry bulb (DB).
Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and
outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
1
Power Input is rated at high speed.
2
Take appropriate actions at the end of HVAC equipment life to recover, recycle, reclaim or
destroy R410A refrigerant according to applicable regulations (40 CFR Part 82, Subpart F)
under section 608 of CAA.
3
Sound Pressure levels are tested in an anechoic chamber under ISO Standard 3745.
4
All communication cable to be minimum 18 AWG, 2-conductor, stranded, shielded and
must comply with applicable and national code. Ensure the communication cable is prop-
erly grounded at the master outdoor unit only.
Do not ground the ODU-IDU communica-
tion cable at any other point.
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