LGRED Installation Manual

MULTI
F
MAX
MULTI
F
WITH
9
Product Data
Due to our policy of continuous product innovation, some specifications may change without notification.
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GENERAL DATA
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Model Number LMU180HHV LMU240HHV LMU300HHV
Capacity
Nominal 18,000 24,000 30,000
Cooling (Btu/h) (Min.~Rated~ Max.)
1
8,400 ~ 18,000 ~ 19,980 8,400 ~ 24,000 ~ 30,000 8,400 ~ 28,400 ~ 34,080
Cooling Power Input (kW) (Min.~Rated~ Max.) 0.88 ~ 1.33 ~ 1.87 0.94 ~ 1.78 ~ 2.49 0.95 ~ 2.27 ~ 3.18
Cooling Running Current (A) (Min.~Rated~ Max.) 4.0 ~ 6.0 ~ 8.5 4.3 ~ 8.1 ~ 11.3 4.3 ~ 10.3 ~ 14.5
Heating (Btu/h) (Min.~Rated~ Max.)
1
10,248~22,000~24,000 10,248~26,000~31,200 10,248~28,600~34,320
Heating Power Input (kW) (Min.~Rated~ Max.) 1.25 ~ 2.22 ~ 3.11 1.26 ~ 2.12 ~ 2.96 1.30 ~ 2.33 ~ 3.26
Heating Running Current (A) (Min.~Rated~ Max.) 5.7 ~ 10.1 ~ 14.1 5.7 ~ 9.6 ~ 13.5 5.9 ~ 10.6 ~ 14.8
Operating Range
Cooling (°F DB)
2
14 to +118
Heating (°F WB) -13 to +64
Compressor
Inverter Quantity Twin Rotary x 1
Oil / Type FVC68D
Fan (Side Discharge)
Type Propeller
Motor Output (W) x Qty. 124.2 x 1
Motor / Drive Brushless Digitally Controlled / Direct
Maximum Air Flow Rate (ft.
3
/ min.) 2,295
Unit Data
Refrigerant Type R410A
Refrigerant Control / Location Electronic Expansion Valve / Outdoor Unit
Min. Number Indoor Units/System
3
222
Max. Number Indoor Units/System
3
234
Maximum Allowable Total Indoor Unit Connected Capacity (Btu/h) 24,000 33,000 40,000
Sound Pressure ±3 dB(A) (Cooling / Heating) dB(A)
4
50 / 54 52 / 55 52 / 55
Dimensions (W x H x D [inch]) 37-13/32 x 32-27/32 x 13
Net Unit Weight (lbs.) 147.7 152.1 152.1
Power Supply (V, Phase, Hz) 208 / 230V, 1, 60
Communication / Connection (Power) Cable (No. x AWG)
5,6
4C x 14
Heat Exchanger
Material and Fin Coating Copper Tube/Aluminum Fin and GoldFin™ / Hydrophilic
Rows/Columns / Fins per inch x Qty. (3 x 38 x 16) x 1
Piping
Liquid Line Connection (in., O.D.) x Qty. Ø1/4 x 2 Ø1/4 x 3 Ø1/4 x 4
Vapor Line Connection (in., O.D.) x Qty. Ø3/8 x 2 Ø3/8 x 3 Ø3/8 x 4
Factory Charge oz. of R410A 98.8 112.8
Additional Charging Volume (oz. / ft.) 0.22
Piping Lengths
Maximum Total Piping (ft.)
7
164 246.1
Maximum Outdoor Unit to Indoor Unit Piping (ft.) 82.0
Piping Length (No Additional Refrigerant [ft.]) 49.2 73.8 98.4
Maximum Elevation between Outdoor Unit and Indoor Unit (ft.) 49.2
Maximum Elevation between Indoor Unit and Indoor Unit (ft.) 24.6
Table 1: 0XOWL)ZLWK/*5('2XWGRRU8QLW6SHFL¿FDWLRQV
1
Capacity is rated with non-ducted IDUs, 0 ft. above sea level, with a 0 ft. level difference
between ODU and IDUs, and the following refrigerant pipe lengths:
LMU180HHV: 16.4 ft. x 2 = 32.8 ft.
LMU240HHV: 16.4 ft. x 3 = 49.2 ft.
LMU300HHV: 16.4 ft. x 4 = 65.6 ft.
All capacities are net with a combination ratio between 95 – 105%.
Rated cooling capacity obtained with air entering the indoor unit at 80ºF dry bulb (DB) and
67ºF wet bulb (WB) and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet
bulb (WB).
Rated heating capacity obtained with air entering the indoor unit at 70ºF dry bulb (DB) and
60ºF wet bulb (WB) and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet
bulb (WB).
2
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3
At least two indoor units must be connected. For allocated capacity information, see the
combination tables in the "Multi F / Multi F MAX with LGRED Combination Data Manual" on
www.lghvac.com. For performance data, see "Multi F / Multi F MAX with LGRED Perfor-
mance Data Manual" on www.lghvac.com.
4
Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745 and
are the same in both cooling and heating mode. These values can increase due to ambient
conditions during operation.
5
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with all the applicable local and national codes. For detailed information, please refer to
electrical characteristics on page 10.
6
Communication / connection (power) cable from the outdoor units to the indoor units must
be a minimum of 14 AWG, 4-conductor stranded, shielded or unshielded (if shielded, it
must be grounded to the chassis of the outdoor unit only), and must comply with applicable
local and national codes. For detailed electrical information, please refer to electric charac-
teristics on page 10.
7
Piping lengths are equivalent.