Sterlco 30RA Outdoor Air Cooled Central Chillers 10-60 Tons - Manual (Page 5)

5
Table 1C — Physical Data, 30RA — 60 Hz SI
Table 1D — Physical Data, 30RA — 50 Hz SI
LEGEND
TXV — Thermostatic Expansion Valve
*Flow switch and strainer are standard on all units, with or without hydronic package.
NOMINAL INPUT HP FOR COMPRESSORS
UNIT 30RA 010 015 018 022 025 030 035 040 045 050 055
REFRIGERANT TYPE R-22, TXV Controlled System
Refrigerant Charge (kg) Ckt A/Ckt B 8.2/— 12.2/— 16.3/— 16.8/— 17.2/— 21.8/— 20.0/13.6 20.4/13.6 20.0/20.0 20.4/20.4 25.0/25.0
COMPRESSORS Scroll, Hermetic
Quantity 1 1 2 2 2 2 3 3 4 4 4
Speed (r/s) 58.3
(Qty) Ckt A
(1) SM125 (1) SM185 (2) SM110
(1) SM115,
(1) SM160
(2) SM160 (2) SM185
(1) SM115,
(1) SM160
(2) SM160
(1) SM125,
(1) SM160
(2) SM160 (2) SM185
(Qty) Ckt B
— — — — — — (1) SM185 (1) SM185
(1) SM125,
(1) SM160
(2) SM160 (2) SM185
Oil Charge (Compressor/L) SM110/2.7, SM115/3.2, SM125/3.2, SM160/3.3, SM185/5.5
No. Capacity Steps
Standard 1 1 2 2 2 2 3 3 4 4 4
Optional (Maximum) 2 2 3 3 3 3 4 4 5 5 5
Minimum Capacity Step (%)
Standard 100 100 50 42 50 50 25 32 22 25 25
Optional 69 79 32 27 38 39 16 24 15 19 20
COOLER Welded, Direct-Expansion Plate Heat Exchanger
Net Fluid Volume (L) 4.22 6.08 7.03 9.12 10.75 12.84 23.84 26.49 24.79 28.12 32.34
Maximum Refrigerant Pressure (kPa) 3103 3103 3103 3103 3103 3103 3103 3103 3103 3103 3103
Maximum Fluid Side Pressure
Without Pump(s) (kPa)
1034 1034 1034 1034 1034 1034 1034 1034 1034 1034 1034
Maximum Fluid Side Pressure
With Pump(s) (kPa)
1034 1034 1034 1034 1034 1034 1034 1034 1034 1034 1034
FLUID CONNECTIONS (mm)
Inlet and Outlet, FPT 50.8 50.8 50.8 50.8 50.8 50.8 63.5 63.5 63.5 63.5 63.5
Drain (NPT) 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7
CONDENSER FANS
Standard Low Noise Type
Fan Speed (r/s)
Standard/Low Noise
19/9.5 19/9.5 19/9.5 —/14.2 —/14.2 —/14.2 —/14.2 —/14.2 —/14.2 —/14.2 —/14.2
No. Blades...Diameter (mm)
Ckt A/Ckt B
15...762/— 15...762/— 15...762/— 11...762/— 11...762/— 11...762/—
11...762/
15...762
11...762/
15...762
11...762/
11...762
11...762/
11...762
11...762/
11...762
No. Fans...Total kW 1...1.8 1...1.8 1...1.8 2...2.0 2...2.0 2...2.0
2...2.0 (A),
1...1.8 (B)
2...2.0 (A),
1...1.8 (B)
4...4.0 4...4.0 4...4.0
Total Airflow (L/s) 4,955 4,955 4,955 6,419 6,419 6,843 9,595 9,595 12,884 12,884 13,687
CONDENSER COILS
Quantity...No. Rows 1...2 1...3 1...3 1...3 1...3 1...3 2...3 2...3 2...3 2...3 2...3
Total Face Area (sq m) 2.14 2.14 2.14 2.97 2.97 3.72 5.11 5.11 5.95 5.95 7.43
HYDRONIC MODULE (Optional)* Pump(s), Strainer W/Blowdown Valve, Expansion Tank, Pressure Gages, Drain and Vent Plugs, Flow Switch, and Balance Valve
Pump Single or Dual, Close-Coupled Centrifugal Pump(s), 58.3 r/s
Expansion Tank Volume (L) 16.5 39
UNIT 30RA 010 015 018 022 025 032 035 042 045
REFRIGERANT TYPE R-22, TXV Controlled System
Refrigerant Charge (kg) Ckt A/Ckt B 8.2/— 12.2/— 16.3/— 16.8/— 17.2/— 20.0/13.6 20.0/13.6 20.0/20.0 20.0/20.0
COMPRESSORS Scroll, Hermetic
Quantity 1 2 2 2 2 3 3 4 4
Speed (r/s) 48.3
Quantity — Ckt A
(1) SM160 (2) SM110 (2) SM125 (2) SM160 (2) SM185
(1) SM115,
(1) SM160
(2) SM185 (2) SM160 (2) SM185
Quantity — Ckt B — — — — — (1) SM185 (1) SM185 (2) SM160 (2) SM185
Oil Charge (Compressor/L) SM110/2.7, SM115/3.2, SM125/3.2, SM160/3.3, SM185/5.5
No. Capacity Steps
Standard 1 2 2 2 2 3 3 4 4
Optional (Maximum) 2 3 3 3 3 4 4 5 5
Minimum Capacity Step (%)
Standard 100 50 50 50 50 25 33 25 25
Optional 71 28 31 35 37 15 25 18 19
COOLER Welded, Direct-Expansion Plate Heat Exchanger
Net Fluid Volume (L) 4.22 6.08 7.03 9.12 10.75 21.82 24.77 21.82 24.77
Maximum Refrigerant Pressure (psig) 3103 3103 3103 3103 3103 3103 3103 3103 3103
Maximum Fluid Side Pressure
Without Pump(s) (kPa)
1034 1034 1034 1034 1034 1034 1034 1034 1034
Maximum Fluid Side Pressure
With Pump(s) (kPa)
1034 1034 1034 1034 1034 1034 1034 1034 1034
FLUID CONNECTIONS (mm)
Inlet and Outlet, FPT 50.8 50.8 50.8 50.8 50.8 63.5 63.5 63.5 63.5
Drain (NPT) 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7
CONDENSER FANS
Standard Low Noise Type
Fan Speed (r/s)
Standard/Low Noise
15.8/7.9 15.8/7.9 15.8/7.9 —/11.7 —/11.7 —/11.7 —/11.7 —/11.7 —/11.7
No. Blades...Diameter (mm)
Ckt A/Ckt B
15...762/— 15...762/— 15...762/— 11...762/— 11...762/—
11...762/
11...762
11...762/
15...762
11...762/
15...762
11...762/
11...762
No. Fans...Total kW 1...1.8 1...1.8 1...1.8 2...2.0 2...2.0
2...2.0 (A),
1...1.8 (B)
2...2.0 (A),
1...1.8 (B)
4...4.0 4...4.0
Total Airflow (L/s) 4,130 4,130 4,130 5,349 5,349 7,995 7,995 10,737 10,737
CONDENSER COILS
Quantity...No. Rows 1...2 1...3 1...3 1...3 1...3 2...3 2...3 2...3 2...3
Total Face Area (sq m) 2.14 2.14 2.14 2.97 2.97 5.11 5.11 5.95 5.95
HYDRONIC MODULE (Optional)* Pump(s), Strainer W/Blowdown Valve, Expansion Tank, Pressure Gages, Drain and Vent Plugs, Flow Switch, and Balance Valve
Pump Single or Dual, Close-Coupled Centrifugal Pump(s), 48.3 r/s
Expansion Tank Volume (L) 16.5 39
COMPRESSOR 60 Hz 50 Hz
SM110 12.5 10.5
SM115 13.5 11.2
SM125 14.7 12.0
SM160 19.1 15.6
SM185 21.8 18.3