14
Multi V Ducted Indoor Units
Due to our policy of continuous product innovation, some specifications may change without notification.
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GENERAL DATA
Specications − High-Static M2 and M3 Chassis
Table 5: Ducted High Static M2 and M3 Indoor Unit General Data.
Model No. ARNU243M2A4 ARNU283M3A4
Cooling Mode Performance
Capacity (Btu/h)
24,200 28,000
Max Power Input
1
(W)
430 650
L/M/H Power Input at Factory Default (W)
34 / 43 / 67 60 / 83 / 109
Heating Mode Performance
Capacity (Btu/h)
27,300 31,500
Max Power Input
1
(W)
450 650
L/M/H Power Input at Factory Default (W)
34 / 43 / 67 60 / 83 / 109
Entering Mixed Air
Cooling Max. (°F WB)
76 76
Heating Min. (°F DB)
2
59 59
Unit Data
Refrigerant Type
3
R410A R410A
Refrigerant Control
EEV EEV
Sound Power
4
dB(A) (H-M-L, @0.24” ESP)
44 / 42 / 42 51 / 50 / 50
Sound Pressure
5
dB(A) (H/M/L, @0.24” ESP)
39 / 38 / 37 40 / 39 / 37
Net Unit Weight (lbs.)
82.9 96.1
Shipping Weight (lbs.)
95.5 105.4
Communication Cable
6
(No. x AWG)
2 x 18 2 x 18
Fan
Type
Sirocco Sirocco
Motor
1 1
Housing
2 2
Motor/Drive
Brushless Digitally Controlled / Direct
Airflow Rate H/M/L (CFM)
High Mode (Factory Set)
673 / 512 / 425 1,250 / 1,017 / 837
External Static Pressure (in. wg)
High Mode (Factory Set)
0.24 0.23
Piping
Liquid Line (in., O.D.)
3/8 Flare 3/8 Flare
Vapor Line (in., O.D.)
5/8 Flare 5/8 Flare
Condensate Line (in., I.D.)
1 1
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.
All capacities are net with a combination ratio between 95-105%.
Rated capacity is certified under AHRI Standard 1230. Ratings are subject to change
without notice. Current certified ratings are available at www.ahridirectory.org.
1
Max. power input is rated at maximum setting value.
2
Low ambient performance with LGRED° heat technology is included in Multi V 5 Air
Source Units produced after February 2019.
3
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.
4
Sound Power level is measured using rated conditions, and tested in a reverberation room
per AHRI 260.
5
Sound Pressure levels are tested in an anechoic chamber under ISO Standard 3745.
6
All communication cable to be minimum 18 AWG, 2-conductor, twisted, stranded, shielded
and must comply with applicable local and national codes. Ensure the communication
cable is properly grounded at the main outdoor unit only. Do not ground the ODU-IDU
communication cable at any other point.
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