12
General
Data
Table 12-1  General Data  43 Tons
TC*500 (42Tons)
Cooling Performance 1
Nominal Gross Capacity(Btuh) 505,000 (148 kW)
System Power kW 52.9
Compressor
Number/Type 3/Scroll
Nominal Motor HP (ea) 12.5
Motor RPM 2875
Natural Gas Heat2Low High
Heating Input(Btuh) 335,000 (98.2 kW) 670,000 (196 kW)
First Stage 300,000 (87.9 kW) 600,000 (176 kW)
Heating Output(Btuh) 271,350 (79.5 kW) 542,700 (159 kW)
First Stage 243,500 (71.4 kW) 486,000 (166 kW)
Steady State Efficiency(%)381
No. Burners/No. Stages 1/2
Gas Connect Pipe Size (in) 0.75 (19 mm)
Outdoor Coil - Type LANCED
Tube Size OD (in) 0.375 (10 mm)
Face Area(sq ft) 69.8 (6.5 sq m)
Rows/Fins Per Inch (25mm) 2/16
Indoor Coil - Type HI-PERFORM
Tube Size OD (in) 0.500 (13 mm)
Face Area (sq ft) 37.5 (3.5 sq m)
Rows/Fins Per Inch (25mm) 3/13
Refrigerant Control TXV
PVC Drain Connect No./Size (in) 1/1.25 (1/32 mm)
Outdoor Fan Type PROP FAN
No. Used 4
Diameter (in.) 28.0 (711 mm)
Drive Type/No. Speeds DIRECT/1
Cfm 26,200 (12,400 L/s)
No. Motors (RPM) 4 (940)
Motor HP 0.75 (0.56 kW)
Indoor Fan Type/No. Used FC/1
Diameter (in) 25.0 (635 mm)
Width (in) 25.0 (635 mm)
Drive Type BELT
No. Speeds/No. Motors 1/1
Motor HP 10.0 (7.5 kW)
Motor RPM/Frame Size 1460/215T
Filters - Type THROWAWAY
Furnished/No. Yes/17
Recommended Size (in) 16x20x2 (406x508x51mm)
Refrigerant Type R-22
Factory Charge Circuit #1 (lbs) 423.9 (10.8 kg)
Factory Charge Circuit #1 49.4 (22.5 kg )
Notes:
1. Cooling Performance is rated at 95°F (35°C) ambient, 80°F (27°C) entering dry bulb, 67°F (19°C) entering
wet bulb. Gross capacity does not include the effect of fan motor heat.
2. Heating Performance Limit settings and ratings data were established and approved under laboratory
test conditions using American National Standards.
3. Steady State Efficiency is rated in accordance with DOE test procedures.
4. Refrigerant charge is an approximate value. For a more precise value, see unit nameplate and service
instructions.
Table 12-2  Economizer Outdoor Air Damper Leakage (Of Rated Airflow)
∆P Across Dampers (In. WC) (Pa)
0.5 In. (124.5 Pa) 1.0 In. (249 Pa)
Standard 1.5% 2.5%
Optional Low Leak 0.5% 1.0%
Note: Above data based on tests completed in accordance with AMCA Standard 575.