COLDZONE A2L R-SERIES NEXT-GEN MINICON
1/2 to 6 HP Air Cooled Condensing Units
Introduction
The Next-Gen MiniCon R-Series, ranging from ½ to 6 HP, are engineered for increased efficiency, enhanced features, ease of service, and a wider array of cataloged options. These units are suitable for various commercial applications, including cafeterias, convenience stores, restaurants, and fast-food outlets, offering versatility across many other applications. Constructed from high-quality materials, they provide increased flexibility and significantly improved efficiency, leading to lower long-term operating costs.
The small profile product line is designed to utilize refrigerants R454A, R454C, and R455A. Available with scroll compressors, the standard Next-Gen R-Series is rated for operation in ambient air temperatures up to 110° F.
Integral Sub-Cooling Circuit
All Next-Gen MiniCon units feature an integral sub-cooling circuit. This circuit allows saturated liquid to flow from the receiver to the condenser, where the refrigerant is sub-cooled by ambient air. This process provides an average of 3 to 5° F of sub-cooling, enhancing efficiency and ensuring optimal expansion device operation.
Diagram Description: The system diagram illustrates the flow of refrigerant, showing components like Discharge Gas, Liquid to Receiver, Receiver, Saturated Gas, Sight Glass, Saturated Liquid, Subcooled Liquid to Expansion Valve, and Condenser Coil.
Visual Description: An image depicts a typical Next-Gen MiniCon condensing unit.
Features and Options
The units offer a range of features and options, categorized as Standard, Optional, or Not Available. Key features include Scroll Compressors, generously sized high-efficiency condensers with enhanced copper tubes/aluminum fins, suction line piping, larger electrical panels, crankcase heaters, and various pressure controls.
| DESCRIPTION | MEDIUM & LOW TEMPERATURE |
|---|---|
| Scroll Compressors | ● Standard |
| Generously Sized High Efficiency Condenser, Enhanced Copper Tubes/Aluminum Fins | ● Standard |
| Suction Line Piping | ● Standard |
| Larger Electrical Panel With Hinged/Removable Door | ● Standard |
| Crankcase Heater | ● Standard |
| Fixed High/Adjustable Low-Pressure Control | ● Standard |
| Liquid Line With Components: Sealed Filter & Sight Glass | ● Standard |
| All-Weather Galvanized Steel Painted Housing | ● Standard |
| Refrigerant Receiver With Isolation Valve And Pressure Relief Plug | ● Standard |
| Integral Liquid Sub-Cooling Circuit | ● Standard |
| Quick Access Shut Off Valves | ● Standard |
| Easy Access Control Panel Door | ● Standard |
| Color-Coded/Numbered Point-To-Point Wiring | ● Standard |
| Flooded Head Pressure Control | ● Flooded Models |
| Pressure Fan Cycle Control | ● Non-Flooded Models |
| EC Fan Motors | ● Standard |
| Dual Pressure Control | ● FM1 - FM3 |
| Adjustable Head Pressure Control Valve | ○ Optional |
| Liquid Line Without Components: Pipe Only | ○ Optional |
| Liquid Line With Premium Components: Replaceable Core Filter/Drier & Sight Glass | ○ FM4 Cabinet |
| Suction Line Components: Sealed Filter | ○ FM4 Cabinet |
| Suction Line Components: Replaceable Core Filter | ○ FM4 Cabinet |
| Suction Line Accumulator | ○ Optional |
| Additional compressor cooling (Medium Temp): Dual pressure control, insulated suction line components and piping, liquid injection, and suction accumulator. | ○ Optional |
| Additional compressor cooling (Low Temp): Dual pressure control, insulated suction line components and piping. | ○ Optional |
| Oil Separator | ○ Optional |
| Oversized Receiver | ○ Optional |
| Pump-Down Toggle Switch | ○ Optional |
| Heated & Insulated Receiver | ○ Optional |
| Phase Loss Monitor | ○ Optional |
| Single Point Power | ○ Optional |
| Thru-The-Door Non-Fused Disconnect Switch | ○ Optional |
| Copper Fins Or Electro Fin/Bronze Glow Coated Coil | ○ Optional |
| 316 Stainless Steel Cabinet | ○ Optional |
Factory Installed Options & Shipped Loose Accessories
Factory Installed Options // Common Defrost Components
| DESCRIPTION | MEDIUM TEMPERATURE | LOW TEMPERATURE |
|---|---|---|
| Electronic Air Defrost Timer | ● Standard | ● Standard |
| Mechanical Air Defrost Timer | ○ Optional | ○ Optional |
| Defrost Kit | ○ Optional | ○ Optional |
Shipped Loose Accessories
| DESCRIPTION | MEDIUM & LOW TEMPERATURE |
|---|---|
| External Fused Disconnect | ○ Optional |
| Snow/Hail Guards | ○ Optional |
| Snow Legs | ○ Optional |
| Crankcase Pressure Regulating Valve | ○ Optional |
| Two-Tiered Stacking Rack | ○ Optional |
Visual Descriptions:
- An image highlights the easy access/removable control panel door.
- Color-coded and numbered point-to-point wiring is shown for easy maintenance.
- Quick access to shut-off valves from the cabinet exterior is noted.
- Replaceable core liquid and suction filters are available as an option for FM4 flooded and non-flooded models.
Model Nomenclature
The model nomenclature system provides a structured way to identify unit configurations. It breaks down into 'Configurable Base Model' and 'Pre-Configuration Codes'. Key elements include Brand (Coldzone), Style (Flooded/Non-Flooded), Compressor Style (Scroll), Compressor Configuration, Horsepower (1/2 to 6 HP), Temperature Range (Extended Medium, Low, Medium), Refrigerant (R454A, R454C, R455A), Voltage, and Vintage. Pre-Assembly Codes, such as 'NT' for No Defrost Timer/Kit, are also included.
Performance Data and Specifications Summary
This document provides comprehensive technical data for the A2L R-Series Next-Gen Minicon units. Detailed capacity data (BTUH) is presented in extensive tables for various models, refrigerants (R454A, R454C, R455A), and operating conditions, covering a wide range of ambient and suction temperatures.
Electrical data, including Rated Load Amps (RLA), Locked Rotor Amps (LRA), Minimum Circuit Ampacity (MCA), and Maximum Overcurrent Protection (MOPD), is detailed for different voltage configurations (208-230V/1/60 Hz, 200-220V/1/50 Hz, 208-230V/3/60 Hz, 200-220V/3/50 Hz, 460V/3/60 Hz, 380V/3/50 Hz) and includes information on defrost provisions and electric defrost kits.
Specifications cover unit dimensions (Depth, Width, Height), cabinet sizes (FM1 to FM4), fan quantities, approximate shipping weights, and sound levels (dBA) for both medium and low-temperature models. Department of Energy Annual Walk-In Energy Factor (AWEF) ratings are also provided, indicating energy efficiency for different refrigerant and temperature configurations.
Dimensional Drawings Summary
Dimensional drawings are available for cabinet sizes FM1, FM2, FM3, and FM4. These drawings provide detailed views (Depth View and Width View) of the units, including dimensions for Air, Liquid Out, Suction, Control Panel connections, and mounting holes. All dimensions are provided in inches.
