Lennox LGA Series Unit Information page 3

Model No.
Cooling Efficiency type
Gross Cooling Capacity — Btuh (kW)
¡Net Cooling Capacity — Btuh (kW)
Cooling Cooling
Ratings Ratings Ratings
Total Unit Power (kW)
¡SEER (Btuh/Watt)
EER (Btuh/Watt)
©Sound Rating Number (db)
Refrigerant Charge Furnished (HCFC-22)
LGA Models LGA Models
Only Only
Heat Input Type
Two Stage Two Stage
Input (low) — Btuh (kW)
Heating Heating
Capacity Capacity
Output (low) — Btuh (kW)
(Natural or (Natural or
Input (High) — Btuh (kW)
LPG/Propane LPG/Propane
Output (High) — Btuh (kW)
Gas (at Sea Gas (at Sea
Level) Level)
A.G.A./C.G.A. Thermal Efficiency / AFUE
Gas Supply Connections npt — in. - Natural or LPG/Propane
Recommended Gas Supply Recommended Gas Supply
Pressure — wc. in. (kPa) Pressure — wc. in. (kPa)
Blower wheel nomi-
nal dia. x width — in. (mm)
Direct Drive Direct Drive
Motor Motor
1.5 hp 1.5 hp
(1.1 kW) (1.1 kW)
¢Motor & ¢Motor &
Motor &
Evaporator Evaporator
Drives Drives
Blower Blower
and Drive and Drive
2 hp 2 hp
Selection Selection
(1.5 kW) (1.5 kW)
¢Motor & ¢Motor &
Motor &
Drives Drives
3 hp 3 hp
(2.2 kW) (2.2 kW)
¢Motor & ¢Motor &
Motor &
Drives Drives
Net face area — sq. ft. (m
Tube diameter — in. (mm) & No. of rows
Fins per inch (m)
Evaporator Evaporator
Coil Coil
Drain connection no. & size - in. (mm)
fpt
Expansion device type
Net face area — sq. ft. (m
Condenser Condenser
Tube diameter — in. (mm) & No. of rows
Coil Coil
Fins per inch (m)
Diameter — in. (mm) & No. of blades
Total Air volume — cfm (L/s)
Condenser Condenser
Motor horsepower (W)
Fans Fans
Motor rpm
Total Motor watts
Type of filter
Filters Filters
(furnished) (furnished)
No. and size — in. (mm)
Electrical characteristics
¡Rated in accordance with ARI Standard 210/240 and certified to ARI; 95_F (35_C) outdoor air temperature and 80_F (27_C) db/67_F (19_C) wb entering evaporator air; mini-
mum external duct static pressure.
©Sound Rating Number rated in accordance with test conditions included in ARI Standard 270.
¢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 by Lennox 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.
NOTE — Net capacity includes evaporator blower motor heat deduction. Gross capacity does not include evaporator blower motor heat deduction.
SPECIFICATIONS 3-4 TON
38,000 (11.1) 38,000 (11.1) 44,200 (12.9) 44,500 (13.0) 50,500 (14.8)
36,000 (10.6) 35,800 (10.5) 42,000 (12.3) 42,500 (12.5)
6 lbs. 10 oz.
Model No.
Natural
LPG/Propane
Nominal Motor output hp (W)
Voltage & phase
Nominal
Motor output Motor output
hp(kW) hp(kW)
Max. usable
Voltage & phase
(Drive kit #) RPM range
Nominal
Motor output Motor output
hp (kW) hp (kW)
Max. usable
Voltage & phase
(Drive kit #) RPM range
Nominal
Motor output Motor output
hp (kW) hp (kW)
Max. usable
Voltage & phase
(Drive kit #) RPM range
2
)
2
)
3/8 (9.5) - 1.3 3/8 (9.5) - 2
LCA/LGA036
Standard High Standard
3.9 3.4
10.0 12.0
9.2 10.5
8 lbs. 6 oz. 6 lbs. 10 oz.
(3.01 kg) (3.80 kg) (3.01 kg)
LGA036
Standard Standard
- - - -
- - - -
78,000 (22.9) 78,000 (22.9) 125,000 (36.6) 78,000 (22.9) 125,000 (36.6)
61,600 (18.1) 61,600 (18.1) 98,750 (29.0) 61,600 (18.1)
11-1/2 X 9 (292 X 229)
208/230v - 1ph or 3 ph or 460v, 575v-3ph
208/230v - 1ph, 208/230v, 460v or 575v-3ph
(1) 615 - 920 or (2) 800-1105
208/230v, 460v or 575v-3ph
208/230v, 460v or 575v-3ph
3/8 (9.5) - 2
Balanced Port Thermostatic Expansion Valve, removeable power head
3/8 (9.5) - 1.3
4000 (1890)
320
Disposable Commercial Grade Pleated
(2) 16 x 25 x 2 (406 x 635 x 51)
208/203v -— 60 hertz — 1 phase
208/230v, 460v or 575v — 60 hertz — 3 phase
Page 3
LCA/LGA042
High Standard
48,000 (14.1)
4.6 4.0 5.0
10.0 12.0 10.0
9.1 10.6 9.6
82
8 lbs. 13 oz. 7 lbs. 9 oz.
(4.00 kg) (3.43 kg)
LGA042
Dual or High Standard
- - - - 92,000 (27.0) - - - -
- - - - 72,700 (21.3) - - - -
80.0% / 78.0%
1/2
7 (1.7)
11 (2.7)
.75 (560)
1.5 (1.1)
1.72 (1.3)
2 (1.5)
2.3 (1.7)
(3) 920 - 1230
3 (2.2)
3.45 (2.6)
(4) 1070 - 1325
6.25 (0.58)
3/8 (9.5) - 3 3/8 (9.5) - 2
15 (591)
(1) 3/4 (19)
14.6 (1.35)
3/8 (9.5) - 2
20 (787)
24 (610) - 3
1/3 (224)
1075
LCA/LGA048
High
50,200 (14.7)
48,000 (14.1)
4.6
12.0
10.4
9 lbs. 8 oz.
(4.31 kg)
LGA048
Dual or High
92,000 (27.0)
72,700 (21.3)
98,750 (29.0)
3/8 (9.5) - 3
4200 (1980)
360