21
RT-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 Supply Pressure (in. w.c.)
Natural or LP (minimum/maximum)
2.5/14.0
2.5/14.0
Gas Connection Pipe Size (in.)
3
/
4
1
Electric Heat
KW Range
5
41-108
5
Capacity Steps:
2
Compressor
Number/Type
3/Scroll
Size (nominal)
14
Unit Capacity Steps (%)
100/67/33
Motor RPM
3450
Outdoor Coil
Standard Efficiency
High Efficiency
Type
Lanced
Lanced
Tube Size (in.) OD
3
/
8
3
/
8
Face Area (sq. ft.)
69.79
75.00
Rows/Fins Per Inch
2/16
3/16
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 (Std./Hi Eff Cond Coil)
(Lbs of R-22)
4
(Std.) 30.7/54.3 per circuit
(High) 36.0/72.0 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. For Electric
heat KW range per specific voltage, see table PD-10.
6. Filter dimensions listed are nominal. For actual filter
and rack sizes see the Unit Installation, Operation,
Maintenance Guide.
Δ
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 5
00
.
60 Hz