Air-Cooled | Portable Water Chiller | Blower | 20 Ton

Water Chiller Portable | Air-Cooled

Model MG-20AB shown. Image shown is typical. Actual unit appearance will vary according specifications and options.

Air-Cooled | Portable Water Chiller | Blower | 20 Ton

MG-20AB
  • Mechanical refrigeration to cool recirculated fluids that support industrial process cooling applications.
  • Include an internal pumping system and reservoir system.
  • Can be moved between use points as needed.
  • Use indoor ambient air to dissipate the heat from the refrigeration system.
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18.3 TonsCooling Capacity
48Gallons/Minute (GPM)
  • Specifications
  • Features
  • Options
  • Control Instrument
  • Support Documents

Specifications

Unit Cooling Capacity
Tons: 18.3
kW: 64.36
Compressor
Horsepower: 20
Quantity: 1
Type: Tandem Scroll
Condenser
Type: Air-Cooled
Air Flow By: Blower
CFM: 20000
Ambient: 95°F
Refrigerant
Type: R-454B
Classification: A2L (Lower Toxicity, Mildly Flammable)
Low Global Warming Potential (GWP)
Process Pump
Horsepower: 3
GPM: 48
PSI: 43
Type: Centrifugal
Construction: Stainless Steel
Reservoir
Capacity: 65 Gallons
Auto Make Up: Standard
Process Connections
To Process: 2"
From Process: 2"
Water Make-Up: ½"
Full Load Amperage
230/3/60: 115
460/3/60: 57.5
575/3/60: 46
Dimensions
Height: 96"
Width: 74"
Depth: 70"
Weight
Shipping: 2,600 LBS
Specification Notes:
  1. Since product innovation and improvement is our constant goal, all features and specifications are subject to change without notice or liability. Selection of certain optional features may change listed specifications.
  2. Cooling capacity: Rated tons at 12,000 BTU/hr/ton @ 50°F LWT Operating at temperatures below 50° will reduce chiller capacity. The minimum recommended operating temperature when no glycol is used is 48°F.
  3. Ambient conditions: Loss of capacity and/or difficulty operating may occur at higher ambient temperatures. The minimum recommended ambient temperature is 60°F.

Features

Refrigerant Circuit

  • R-454B refrigerant
  • Scroll compressor
  • Microprocessor controlled 50% hot gas by-pass capacity control system
  • Suction service valve
  • Discharge service valve
  • Air-Cooled condenser
  • Internal to Unit
  • Centrifugal blower induced air flow
  • Brazed plate evaporator
  • Stainless steel plates
  • Copper brazing material
  • Refrigerant sight glass with moisture indicator
  • Filter-drier
  • Thermostatic expansion valve
  • Liquid line solenoid valve

Electrical

  • Nema 1 control cabinet
  • Process pump motor starter
  • Branch Circuit Fusing
  • Compressor contactor
  • Power entry terminal block

Pressure Gauges

  • Pressure is shown on the MG instrument display
  • Refrigerant head
  • Refrigerant low
  • Coolant

Coolant Circuit

  • High flow centrifugal pump
  • Internal Reservoir
  • Insulated
  • Non-ferrous polyethylene construction
  • Reservoir lid is standard on this model
  • Reservoir level sight glass
  • Standard NPT process fittings

System Limit Devices

  • High refrigerant pressure
  • Low refrigerant pressure
  • Process pump motor overload

Frame Construction

  • Powder coated steel upright frame
  • Glavanized steel cross frame
  • Powder coated steel cabinetry
  • Lift-off side panels
  • Castors – for portability
  • Designed for indoor installation

Warranty

  • 1 year covering parts and labor
  • Free preventative maintenance check in the 2nd year.
  • Warranty Document

Options

Electrical

  • UL508A Enclosed Electrical Panel
  • Emergency Stop Button

Refrigerant Circuit

  • Condenser Screen

Alarms

  • Audible Alarm
  • Beacon Alarm

Control Instrument

  • MRC-1 Remote Located Control System
  • MRC-1 with Audible & Visual Alarms
  • Communications Upgrade : Modbus TCP

Coolant Circuit

  • Overhead Piping Kit
  • Reverse Flow Circuit
  • Process Line Shut Off Valves
  • Pump Upgrade to 5 HP
  • Pump Upgrade to 7.5 HP
  • Pump Upgrade to 10 HP
  • Full Flow Bag Filter

Warranty

  • 4 year extended : 20 ton compressor (parts only)

Control Instrument

MG Series Control Instrument
  • Graphic LCD display with Intuitive Navigation
  • Digital refrigerant pressure display
  • Digital water pressure display
  • Plain language error message reporting
  • Controls hot gas bypass or digital scroll compressor for Capacity Control
  • Alarm output with audible signal
  • Industry 4.0 ready with Modbus RTU or SPI communication included, Modbus TCP communication optional
  • High water temperature shut down feature

Support Documents

Literature
Literature PDF for MG-20AB
Download
Updated on March 2019
Manual
Operating Manual for MG-20AB
Download
Updated on August 8, 2021