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17RT-PRC007-EN
General Data
50 Ton
Cooling Performance
1
Nominal Gross Capacity 616,000
Natural Gas Heat
2
Low High
Heating Input (BTUH) 400,000 800,000
First Stage 300,000 600,000
Heating Output (BTUH) 324,000 648,000
First Stage 243,000 486,000
Steady State Efficiency (%)
3
81.00 81.00
No. Burners 1 2
No. Stages 2 2
Gas Connection Pipe Size (in.)
3
/
4
1
Electric Heat
KW Range
5
41-108
Capacity Steps: 2
Compressor
Number/Type 3/Scroll
Size (nominal) 14
Unit Capacity Steps (%) 100/67/33
Motor RPM 3450
Outdoor Coil — Type Lanced
Tube Size (in.) OD
3
/
8
Face Area (sq. ft.) 69.79
Rows/Fins Per Inch 2/16
Indoor Coil — Type Hi-Performance
Tube Size (in.) OD
1
/
2
Face Area (sq. ft.) 37.50
Rows/Fins Per Foot 4/164
Refrigerant Control TXV
No. of Circuits 2
Drain Connection No./Size (in) 1/1.25
Type PVC
Outdoor Fan Type Propeller
No. Used/Diameter 4/28.00
Drive Type/No. Speeds Direct/1
CFM 31,700
No. Motors/HP/RPM 4/1.10/1125
Indoor Fan Type FC
No. Used 1
Diameter/Width (in) 25.00/25.00
Drive Type/No. Speeds Belt/1
No. Motors/HP 1/10.00/15.00/20.00
Motor RPM 1760
Motor Frame Size 215/254/256T
Exhaust Fan Type Propeller
No. Used/Diameter (in) 2/26.00
Drive Type/No. Speeds/Motors Direct/2/2
Motor HP/RPM 1.0/1075
Motor Frame Size 48
Filters — Type Furnished Throwaway
No./Recommended Size (in)
6
17/16 x 20 x 2
Refrigerant Charge (Lbs of R-22)
4
25.70/54.30 per circuit
Minimum Outside Air Temperature
For Mechanical Cooling 0 F
Table GD-3— General Data — 50 Ton
Table GD-4 — Economizer Outdoor Air
Damper Leakage (Of Rated Airflow)
Notes:
1. Cooling Performance is rated at 95 F ambient, 80 F entering dry bulb, 67 F entering wet bulb. Gross capacity does
not include the effect of fan motor heat. Rated and tested in accordance with the Unitary Large Equipment
certification program, which is based on ARI Standard 340/360-93.
2. Heating Performance limit settings and rating data were established and approved under laboratory test conditions
using American National Standards Institute standards. Ratings shown are for elevations up to 4,500 feet.
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.
5. Maximum KW @ 208V = 41, @ 240V = 54.
6. Filter dimensions listed are nominal. For actual filter and rack sizes see the Unit Installation, Operation,
Maintenance Guide.
∆P Across Dampers (In. WC)
0.5 (In.) 1.0 (In.)
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.