Central Water Chiller | Outdoor Installation | 7.5 Ton

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Air-Cooled Outdoor Central Chiller System

Model OACS-7.5S-MG-APT shown. Image shown is typical. Actual unit appearance will vary according specifications and options.

Central Water Chiller | Outdoor Installation | 7.5 Ton

OACS-7.5S-MG-APT

These air-cooled central chillers use mechanical refrigeration to cool recirculated fluid that support industrial process cooling applications.
20°F to 70°F fluid temperature range.
Air-cooled water chillers use ambient air to dissipate process heat and efficiently runs in air temperature between -20°F to 95°F.
These systems are designed for outdoor installation in most types of climates. The air-cooled condenser, chiller zones, reservoir and pumping system are delivered as a complete package.

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7 TonsCooling Capacity

18 GPMProcess Flow

1# of Zones

Specifications
Features
Options
Control Instrument
Support Documents

Specifications

Refrigerant Zones

Quantity: 1

Capacity

Tons: 7.1
kW: 24.9

Compressor

Type: Digital Scroll

Refrigerant

Type: R-454B

Air-Cooled Condenser

Quantity of Fans: 1

Evaporator

Type: Brazed Plate

Connection Sizes

Type: NPT
Size: 1¼"

Full Load Amperage

460/3/60: 23

Dimensions

Height: 86"
Width: 54"
Depth: 78"

Specification Notes:

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.
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.
Ambient conditions for condenser: Loss of capacity and/or difficulty operating may occur at higher ambient temperatures. The minimum recommended ambient temperature is -20°F.
Dimensions are approximate and should be confirmed with the factory prior to construction planning.

Features

Refrigerant Circuit

R-454B refrigerant
Scroll compressor
Microprocessor controlled 50% hot gas by-pass capacity control system
Suction service valve
Discharge service valve
Brazed plate evaporator
Stainless steel plates
Copper brazing material
Refrigerant sight glass with moisture indicator
Filter-drier
Thermostatic expansion valve
Liquid line solenoid valve

Condenser

Air-Cooled
Condenser shipped separately and requires field installation.
Remote, located outdoors
Heavy gauge galvanized steel cabinet on heavy duty legs
Enhanced copper tubing
with aluminum fins
with aluminum fins
Energy efficient motors
Direct drive fans
with quiet “swept wing” blades
with quiet “swept wing” blades
Non-fused power disconnect

Electrical

UL listed electrical components
UL508A enclosed electrical cabinet
Branch circuit protection of components
Fused transformer
Compressor motor starter
Power entry terminal block
Electrical circuit has a standard SSCR rating of 5 kA

Pressure Gauges

Refrigerant (per zone)
Refrigerant head
Refrigerant low
Coolant
To Process

System Limit Devices

Refrigerant (per zone)
High refrigerant pressure
Low refrigerant pressure
Coolant
Coolant freezestat
Evaporator flow

Warranty

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

Options

Refrigerant Circuit

Condensers utilizing all EC fan motors for higher energy efficiency
Oversized condensers for higher efficiency and full rated performance in higher ambient conditions

Electrical

Main power disconnect switch

Control Instrument

Modbus TCP/IP RJ45

Frame Construction

External Filters

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