Lennox LGM240 - General Data & Cooling Performance


SPECIFICATIONS 13 TON
General Data Nominal Tonnage 13 Ton 13 Ton
Model Number LGM156U4M LGM156U4V
󰀩 Ultra-High Ultra-High
Blower Type SZVAV
(Single Zone
Variable Air Volume)
VAV
(Variable Air
Volume)
Cooling
Performance
Gross Cooling Capacity - Btuh 154,000 154,000
1
Net Cooling Capacity - Btuh 150,000 150,000
1
AHRI Rated Air Flow - cfm 4250 4250
Total Unit Power - kW 12.5 12.5
1
IEER (Btuh/Watt)  18.5
1
EER (Btuh/Watt) 12.0 12.0
Refrigerant
Charge
Refrigerant Type R-410A R-410A
Without Reheat Circuit 1  
Circuit 2  
Circuit 3  
With Reheat Circuit 1 21 lbs. 3 oz. - - -
Circuit 2 12 lbs. 8 oz. - - -
Circuit 3  - - -
Gas Heating Options Available 
 Variable Capacity Scroll (1)
Fixed Capacity Scroll (2)
Outdoor Coils Net face area (total) - sq. ft. 55.2 55.2
Tube diameter - in. 3/8 3/8
Number of rows 2 2
Fins per inch 20 20
Outdoor Coil
Fans
Motor - (No.) horsepower (4) 1/3 ECM (4) 1/3 ECM
Motor rpm 450-1075 450-1075
Total Motor watts 155 - 1150 155 - 1150
Diameter - (No.) in. (4) 24 (4) 24
Number of blades 3 3
Total Air volume - cfm  
Indoor Coils Net face area (total) - sq. ft. 21.40 21.40
Tube diameter - in. 3/8 3/8
Number of rows 3 3
Fins per inch 14 14
Drain connection - No. and size (1) 1 in. FPT (1) 1 in. FPT
Expansion device type Balance port TXV, removable head
2
Indoor
Blower
and
Drive
Selection
Nominal motor output 2 hp, 3 hp, 5 hp
Max. usable motor output (US) 2.3 hp, 3.45 hp, 5.75 hp
Motor - Drive kit number 2 hp
Kit 1 535-725 rpm
Kit 2
3 hp
Kit 1 535-725 rpm
Kit 2
5 hp
Kit 3
Kit 4 850-1045 rpm
Kit 5
Blower wheel nominal D x W - in. (2) 15 x 15 in. (2) 15 x 15 in.
Filters  Fiberglass, disposable
Number and size - in. 
Electrical characteristics 
NOTE - Net capacity includes evaporator blower motor heat deduction. Gross capacity does not include evaporator blower motor heat deduction.
1

2
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.
NOTE – Blower motor service factor = 1.0.