Specifications - Lennox LGA Series Unit Information

General
Data
Cooling Gross Cooling Capacity − Btuh (kW)
Performance
1
Net Cooling Capacity − Btuh (kW)
ARI Rated Air Flow − cfm (L/s)
2
Integrated Part Load Value (Btuh/Watt)
Refrigerant Charge
Furnished
Compressor Type (no.)
Gas Heating Options Available − See Page 7
Outdoor Net face area − sq. ft. (m
Coils
Tube diameter − in. (mm)
Outdoor Coil
Fans
Total Air volume − cfm (L/s)
Indoor Net face area − sq. ft. (m
Coils
Tube diameter − in. (mm)
Condensate Drain − number & size
3
Indoor
Blower and
Max. usable motor output (US Only)
Drive
Selection
Blower wheel nominal dia. x width
Filters
Number and size − in. (mm)
Electrical characteristics
NOTE − Net capacity includes evaporator blower motor heat deduction. Gross capacity does not include evaporator blower motor heat deduction.
1
Tested at conditions included in with ARI Standard 340/360; 95_F (35_C) outdoor air temperature and 80_F (27_C) db/67_F (19_C) wb entering evaporator air; minimum
external duct static pressure.
2
Integrated Part Load Value tested at 80_F (27_C) outdoor air temperature.
3
Using total air volume and system static pressure requirements determine from blower performance tables rpm and motor output required. Maximum usable output of
motors furnished are shown. In Canada, nominal motor output is also maximum usable motor output. If motors of comparable output are used, be sure to keep
within the service factor limitations outlined on the motor nameplate.
SPECIFICATIONS LGA/LCA
Nominal Tonnage (kW)
Model No.
Efficiency Type
Blower Type Constant Air
Volume (CAV)
257,000 (75.3)
248,000 (72.6)
8,000 (3775)
Total Unit Power (kW)
1
EER (Btuh/Watt)
Refrigerant Type
Circuit 1
Circuit 2
Circuit 3
Circuit 4
2
) total
Number of rows
Fins per inch (m)
Motor horsepower (W) (6) 1/3 (249)
Motor rpm
Total Motor watts
Diameter − in. (mm)
Number of blades
21,500 (10,145)
2
) total
Number of rows
Fins per inch (m)
Expansion device type
Nominal motor output
Motor − Drive kit
Type of filter
21 Ton 21 Ton
248H2B 248H4B
High High
Constant Air
Volume (CAV)
257,000 (75.3)
248,000 (72.6)
8,000 (3775)
21.2 21.2
11.7 11.7
12.3 12.7
R−22 R−410A
12 lbs. 8 oz. 13 lbs. 0 oz.
(5.67 kg) (5.90 kg)
12 lbs. 8 oz. 13 lbs. 0 oz.
(5.67 kg) (5.90 kg)
12 lbs. 8 oz. 13 lbs. 0 oz.
(5.67 kg) (5.90 kg)
12 lbs. 8 oz. 13 lbs. 0 oz.
(5.67 kg) (5.90 kg)
Scroll (4) Scroll (4)
Standard (2 Stage), Medium (2 Stage), or High (2 Stage)
70.6 (6.6) 70.6 (6.6)
3/8 (9.5) 3/8 (9.5)
2 2
20 (787) 20 (787)
(6) 1/3 (249)
1075 1075
2500 2500
(6) 24 (610) (6) 24 (610)
3 3
21,500 (10,145)
33.3 (3.1) 33.3 (3.1)
3/8 (9.5) 3/8 (9.5)
3 3
14 (551) 14 (551)
(1) 1 in. NPT coupling
Balanced Port Thermostatic Expansion Valve, removeable power head
5 hp (3.7 kW) − 7.5 hp (5.6 kW) − 10 hp (7.5 kW)
5.75 hp (4.3 kW) − 8.63 hp (6.4 kW) − 11.5 hp (8.6 kW)
5 hp
kit #1 − 660−810 rpm
kit #2 − 770−965 rpm
kit #6 − 560−710 rpm
7.5 hp
kit #3 − 715−880 rpm
kit #4 − 770−965 rpm
10 hp
kit #3 − 715−880 rpm
kit #5 − 850−1045 rpm
(2) 18 x 15 in. (457 x 381 mm)
Disposable, pleated MERV 7 (standard) or MERV 11 (optional)
(12) 20 x 20 x 2 (508 x 508 x 51)
208/230V, 460V or 575V − 60 hertz − 3 phase
Page 3
21 Ton 21 Ton
248H2V 248H4V
High High
Variable Air Variable Air
Volume (VAV) Volume (VAV)
257,000 (75.3) 257,000 (75.3)
248,000 (72.6) 248,000 (72.6)
8,000 (3775) 8,000 (3775)
21.2 21.8
11.7 11.4
14.0 14.2
R−22 R−410A
12 lbs. 8 oz. 13 lbs. 0 oz.
(5.67 kg) (5.90 kg)
12 lbs. 8 oz. 13 lbs. 0 oz.
(5.67 kg) (5.90 kg)
12 lbs. 8 oz. 13 lbs. 0 oz.
(5.67 kg) (5.90 kg)
12 lbs. 8 oz. 13 lbs. 0 oz.
(5.67 kg) (5.90 kg)
Scroll (4) Scroll (4)
70.6 (6.6) 70.6 (6.6)
3/8 (9.5) 3/8 (9.5)
2 2
20 (787) 20 (787)
(6) 1/3 (249) (6) 1/3 (249)
1075 1075
2500 2500
(6) 24 (610) (6) 24 (610)
3 3
21,500 (10,145) 21,500 (10,145)
33.3 (3.1) 33.3 (3.1)
3/8 (9.5) 3/8 (9.5)
3 3
14 (551) 14 (551)
5 hp
kit #7 − 965 rpm
7.5 hp
kit #8 − 965 rpm
10 hp
kit #9 − 1045 rpm