Lennox LGM Series - Roof Curb Options; Ceiling Diffuser Options


SPECIFICATIONS UNIT
General Data Nominal Tonnage 3 Ton 4 Ton 5 Ton 6 Ton
E󰀩ciency Type Ultra-High Ultra-High Ultra-High Ultra-High
Model Number LGM036U4E LGM048U4E LGM060U4E LGM074U4E
Blower Type DirectPlus™
ECM Direct Drive
with MSAV
®
DirectPlus™
ECM Direct Drive
with MSAV
®
DirectPlus™
ECM Direct Drive
with MSAV
®
DirectPlus™
ECM Direct Drive
with MSAV
®
Model Number LGM036U4P LGM048U4P LGM060U4P LGM074U4P
Blower Type DirectPlus™
ECM Direct Drive
with VAV
DirectPlus™
ECM Direct Drive
with VAV
DirectPlus™
ECM Direct Drive
with VAV
DirectPlus™
ECM Direct Drive
with VAV
Cooling
Performance
Gross Cooling Capacity - Btuh 34,600 47,000  71,000
Net Cooling Capacity - Btuh 34,000 46,000  69,000
AHRI Rated Air Flow - cfm 1200  1800 
Total Unit Power - kW 2.3 3.3 4.4 
SEER (Btuh/Watt) - 208/230V-3ph
1

1
21.0
1
20.0 - - -
SEER (Btuh/Watt) - 460V-3ph
1
22.0
1
20.2
1
 - - -

1
22.0
1
20.2
1
 - - -
IEER (Btuh/Watt) - 208/230V-3ph - - - - - - - - -
2
23.3
IEER (Btuh/Watt) - 460V-3ph - - - - - - - - -
2
23.3
 - - - - - - - - -
2
23.3
EER (Btuh/Watt) - 208/230V-3ph
1

1
14.0
1
13.0
2
12.0
EER (Btuh/Watt) - 460V-3ph
1

1
13.7
1

2
12.0

1

1
13.7
1

2
12.0
Refrigerant
Charge
Refrigerant Type R-410A R-410A R-410A R-410A
Without Reheat Option 17 lbs. 0 oz. 17 lbs. 0 oz. 16 lbs. 8 oz. 16 lbs. 8 oz.
With Reheat Option 17 lbs. 2 oz. 17 lbs. 2 oz. 16 lbs. 13 oz. 16 lbs. 13 oz.
Gas Heating Options Standard
(2 stage)
Medium (2 stage)
Standard (2 stage)
Medium (2 stage)
High (2 Stage)
Compressor Type (Number) Variable Capacity Scroll (1)
Outdoor Coil Net face area (total) - sq. ft. 19.3 19.3 19.3 19.3
Tube diameter - in. 3/8 3/8 3/8 3/8
Number of rows 2 2 2 2
Fins per inch 20 20 20 20
Outdoor Coil
Fans
Motor - (No.) HP (1) 1/3 (ECM) (1) 1/3 (ECM) (1) 1/3 (ECM) (1) 1/3 (ECM)
Motor rpm  600 - 900  
Total Motor watts  80 - 236 120 - 272 120 - 360
Diameter - (No.) in. (1) 24 (1) 24 (1) 24 (1) 24
Number of blades 3 3 3 3
Total air volume - cfm   3200 - 4300 3200 - 4700
Indoor
Coil
Net face area (total) - sq. ft. 9.72 9.72 9.72 9.72
Tube diameter - in. 3/8 3/8 3/8 3/8
Number of rows 3 3 4 4
Fins per inch 14 14 14 14
Drain connection - Number and size 1 in. NPT coupling
Expansion device type Balance port TXV
Indoor
Blower
Nominal motor output    
Blower wheel nominal diameter x width - in.    
Filters  Disposable
Number and size - in. (4) 20 x 20 x 2
Electrical characteristics 
NOTE - Net capacity includes evaporator blower motor heat deduction. Gross capacity does not include evaporator blower motor heat deduction.
1, 2

1
210/240 or
2

pressure.