13
Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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Model No.
ARNU073TUD4
ARNU093TUD4
ARNU123TUD4
ARNU183TTD4
ARNU243TTD4
Cooling Mode Performance
Capacity (Btu/h)
7,500
9,600
12,300
19,100
24,200
Max. Power Input
1
(W)
40
40
40
70
70
L/M/H Power Input at Factory Default (W)
16 / 18 / 20
18 / 20 / 22
20 / 22 / 24
24 / 28 / 38
26 / 33 / 51
Heating Mode Performance
Capacity (Btu/h)
8,500
10,900
13,600
21,500
24,200
Max. Power Input
1
(W)
40
40
40
70
70
L/M/H Power Input at Factory Default (W)
16 / 18 / 20
18 / 20 / 22
20 / 22 / 24
24 / 28 / 38
26 / 33 / 51
Entering Mixed Air
Cooling Max (°F WB)
76
76
76
76
76
Heating Min (°F DB)
59
59
59
59
59
Unit Data
Refrigerant Type
2
R410A
R410A
R410A
R410A
R410A
Refrigerant Control
EEV
EEV
EEV
EEV
EEV
Sound Pressure
3
dB(A) (H/M/L)
32 / 29 / 25
35 / 34 / 32
38 / 35 / 32
40 / 37 / 35
43 / 40 / 36
Net Unit Weight (lbs.)
33
33
33
42
42
Shipping Weight (lbs.)
40
40
40
49
49
Grille Weight (lbs)
10
10
10
13
13
Grille Shipping Weight (lbs)
16
16
16
20
20
Communication Cable
4
(No. x AWG)
2 x 18
2 x 18
2 x 18
2 x 18
2 x 18
Fan
Type
Cross Flow
Cross Flow
Cross Flow
Cross Flow
Cross Flow
Quantity
1
1
1
1
1
Motor/Drive
Brushless Digitally Controlled / Direct
Airflow Rate H/M/L (CFM)
290 / 258 / 226
325 / 304 / 290
353 / 325 / 290
470 / 427 / 385
515 / 470 / 406
Piping
Liquid Line (in., O.D.)
1/4 Flare
1/4 Flare
1/4 Flare
1/4 Flare
3/8 Flare
Vapor Line (in., O.D.)
1/2 Flare
1/2 Flare
1/2 Flare
1/2 Flare
5/8 Flare
Condensate Line (in., I.D.)
1
1
1
1
1
Table 4: One-Way Ceiling Cassette (TU and TT Frames) Indoor Unit General Data.
GENERAL DATA
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codes. See page 18 for detailed electrical data.
This unit comes with a dry nitrogen charge.
All capacities are net with a combination ratio between 95-105%.
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1
Max. power input is rated at maximum setting value.
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
Communication cable between Main ODU to IDUs / HRUs to be 18 AWG, 2-conductor,
twisted, stranded, shielded. Ensure the communication cable shield is properly grounded
to the Main 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.
