Sterling RTAA-70, RTAA-90, RTAA-80, RTAA-IOM-4A, RTAA-IOM-4 User Manual
...Specifications and Main Features
- Rotary Liquid Chillers of the Model RTAA Series R®
- The unit is available in a capacity range of 70 to 125 tons.
- The unit employs Dual helically rotary compressor types with two independent refrigerant circuits.
- Refrigerant used is HCFC-22.
- Standard unit uses ambient air in a temp range of 15°F to 125°F, whereas low ambient models can use temp of up to -10°F.
- Water Tank Capacity (in gallons):
- RTAA-70: 39.8 gallons (150.6 liters)
- RTAA-80: 37.8 gallons (143.1 liters)
- RTAA-90: 34.4 gallons (130.2 liters)
- RTAA-100: 32.1 gallons (121.5 liters)
- RTAA-110: 53.4 gallons (202.1 liters)
- RTAA-125: 45.8 gallons (173.4 liters)
- Min. Chilled Water Flow (GPM):
- RTAA-70: 84 GPM
- RTAA-80: 96 GPM
- RTAA-90: 198 GPM
- RTAA-100: 123 GPM
- RTAA-110: 132 GPM
- RTAA-125: 140 GPM
- Max. Chilled Water Flow (GPM):
- RTAA-70: 252 GPM
- RTAA-80: 288 GPM
- RTAA-90: 324 GPM
- RTAA-100: 360 GPM
- RTAA-110: 396 GPM
- RTAA-125: 450 GPM
- Number of Coils: 4
- Height of the Coil: 42 inches
- The length of the coil is as follows:
- RTAA-70: 13 feet
- RTAA-80: 13 feet
- RTAA-90: 14 feet
- RTAA-100: 14 feet
- RTAA-110: 17 feet
- RTAA-125: 17 feet
- Depending on the model, it has 4 to 5 Fans which are 30 inches in diameter
- Electrical Data:
- The unit operates on 200/230/460/575 volts
- Most Applicable Full Load Amp: each models respective data table.
- Logic Control: Employs Adaptive Control™ featuring a Clear Language Display Engine.
- There are model basis settings for compressor overload dip switches.
- There is an option to use a remote display unit that can be connected to the unit to display its operations from a distance.
- Type of Package Unit: Oil and Refrigerant Charged, wired in the factory, leak tested and dehydrated.
Frequently Asked Questions
Q1: Nominal capacity limits for RTAA series can be in what metric ton range?
A1: Between 70-125 tons.
Q2: Which refrigerant does the RTAA series cold water product use?
A2: It incorporates HCFC-22 as a refrigerant.
Q3: What is the normal ambient temperature range for standard units in operation?
A3: For standard units post 15F ambient temperature it becomes feasible to operate them.
Q4: Is there a configuration available to supervise RTAA unit from a different location?
A4: Yes, a remote display can be operated to monitor unit's operation from a different location.
Q5: What is the procedure for charging the equipment to ensure there's no leakage?
A5: Equipment is charged with refrigerant and oil in factory before sending for shipment.
Q6: RTAA Units nMaintainance kya door hoing protectors
A6: Kool cleaning, oil checking and refrigerant charge monitoring is little bit regular maintenance.
Q7: What Power Supply is required to the RTAA series.
A7: RTAA series Power supply is needed for 3-phase supply with 200 VBox, 230, 460 and 575 volts.
User Manual
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