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SPECIFICATIONS 20 TON | 25 TON
General Data Nominal Tonnage 20 Ton 20 Ton 25 Ton 25 Ton
Model Number LGM240U4M LGM240U4V LGM300U4M LGM300U4V
Ultra-High Ultra-High Ultra-High Ultra-High
Blower Type SZVAV
(Single Zone
Variable Air Volume)
VAV
(Variable Air
Volume)
SZVAV
(Single Zone
Variable Air Volume)
VAV
(Variable Air
Volume)
Cooling
Performance
Gross Cooling Capacity - Btuh 235,000 235,000 277,000 277,000
1
Net Cooling Capacity - Btuh 228,000 228,000 270,000 270,000
1
AHRI Rated Air Flow - cfm 7400 7400
Total Unit Power - kW
1
IEER (Btuh/Watt) 18.4 17.5 17.5
1
EER (Btuh/Watt) 12.0 12.0
Refrigerant
Charge
Refrigerant Type R-410A R-410A R-410A R-410A
Without Reheat Circuit 1 12 lbs. 2 oz. 12 lbs. 2 oz. 12 lbs. 8 oz. 12 lbs. 8 oz.
Circuit 2 12 lbs. 7 oz. 12 lbs. 7 oz. 11 lbs. 8 oz. 11 lbs. 8 oz.
Circuit 3 12 lbs. 0 oz. 12 lbs. 0 oz. 14 lbs. 8 oz. 14 lbs. 8 oz.
Circuit 4 12 lbs. 10 oz. 12 lbs. 10 oz. 11 lbs. 8 oz. 11 lbs. 8 oz.
With Reheat Circuit 1 13 lbs. 4 oz. - - - 17 lbs. 2 oz. - - -
Circuit 2 13 lbs. 12 oz. - - - 17 lbs. 5 oz. - - -
Circuit 3 12 lbs. 0 oz. - - - 14 lbs. 8 oz. - - -
Circuit 4 12 lbs. 10 oz. - - - 11 lbs. 8 oz. - - -
Gas Heating Options Available
Variable Capacity Scroll (1)
Fixed Capacity Scroll (3)
Outdoor Coils
Net face area (total) - sq. ft. 55.2 55.2 55.2 55.2
Tube diameter - in. 3/8 3/8 3/8 3/8
Number of rows 3 3 3 3
Fins per inch 20 20 20 20
Outdoor Coil
Fans
Motor - (No.) horsepower
Motor rpm 515 - 1000 515 - 1000
Total Motor watts 130 -1530 130 -1530 180 - 1730 180 - 1730
Diameter - (No.) in.
Number of blades 3 3 3 3
Total Air volume - cfm 18,000 18,000 18,300 18,300
Indoor Coils Net face area (total) - sq. ft. 21.40 21.40 21.40 21.40
Tube diameter - in. 3/8 3/8 3/8 3/8
Number of rows 4 4 4 4
Fins per inch 14 14 14 14
Drain connection - No. and size (1) 1 in. FPT (1) 1 in. FPT (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 5 hp, 7.5 hp, 10 hp
Max. usable motor output (US)
Motor - Drive kit number 5 hp
Kit 3
Kit 4 850-1045 rpm
Kit 5
7.5 hp
Kit 6 850-1045 rpm
Kit 7
Kit 8 1045-1285 rpm
10 hp
Kit 7
Kit 10 1045-1285 rpm
Kit 11
Blower wheel nominal D x W - in. (2) 15 x 15
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.
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