Amana RHE30A2A - User Manual

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Summary

Product Specifications

Cooling Capacity

Nominal cooling capacity in BTUH for the heat pump unit.

Compressor Specifications

Details on compressor performance including R.L. Amps and L.R. Amps.

Condenser Fan Motor

Specifications for the condenser fan motor, including horsepower and amp ratings.

Refrigerant Line Sizes

Dimensions for the liquid and suction line diameters in inches.

Refrigerant Charge

The nominal amount of refrigerant charged in ounces.

Power Supply Requirements

Electrical power supply voltage, frequency, phase, and required circuit protection.

Shipping Weight

The approximate shipping weight of the unit in pounds.

Standard Unit Features

Filtration and Valves

Includes Bi-Flow Liquid Line Filter-Drier and Front Seating Valves.

Compressor Technology

Features a Scroll Compressor for efficient operation.

Safety and Protection Features

Automatic reset switches for high pressure and loss of charge, plus anti-short cycle protection.

Operational Enhancements

Includes Adaptive Demand Defrost, Spring Loaded Check Valves, Eight Pole Motor, and Dual Defrost Sensors.

Optional Accessories

Fuel Kits and Blankets

Optional Fossil Fuel Kit and Compressor Sound Blanket for enhanced performance.

Performance Enhancement Kits

Includes Ambient Temperature Kit, Hard Start Kit, and Freeze Protector Kit.

Heat Pump Performance Data

ARI Performance Data Table

Presents cooling performance data across various outdoor ambient and indoor wet bulb temperatures.

Summary

Product Specifications

Cooling Capacity

Nominal cooling capacity in BTUH for the heat pump unit.

Compressor Specifications

Details on compressor performance including R.L. Amps and L.R. Amps.

Condenser Fan Motor

Specifications for the condenser fan motor, including horsepower and amp ratings.

Refrigerant Line Sizes

Dimensions for the liquid and suction line diameters in inches.

Refrigerant Charge

The nominal amount of refrigerant charged in ounces.

Power Supply Requirements

Electrical power supply voltage, frequency, phase, and required circuit protection.

Shipping Weight

The approximate shipping weight of the unit in pounds.

Standard Unit Features

Filtration and Valves

Includes Bi-Flow Liquid Line Filter-Drier and Front Seating Valves.

Compressor Technology

Features a Scroll Compressor for efficient operation.

Safety and Protection Features

Automatic reset switches for high pressure and loss of charge, plus anti-short cycle protection.

Operational Enhancements

Includes Adaptive Demand Defrost, Spring Loaded Check Valves, Eight Pole Motor, and Dual Defrost Sensors.

Optional Accessories

Fuel Kits and Blankets

Optional Fossil Fuel Kit and Compressor Sound Blanket for enhanced performance.

Performance Enhancement Kits

Includes Ambient Temperature Kit, Hard Start Kit, and Freeze Protector Kit.

Heat Pump Performance Data

ARI Performance Data Table

Presents cooling performance data across various outdoor ambient and indoor wet bulb temperatures.

The Amana RHE30A2A is a remote heat pump designed for residential or light commercial heating and air conditioning applications. It is part of Amana's "Built Better Than It Has To Be" product line, emphasizing durability and performance.

Function Description:

The RHE30A2A operates as a heat pump, providing both cooling and heating capabilities. In cooling mode, it extracts heat from the indoor air and expels it outdoors, effectively lowering the indoor temperature. In heating mode, it reverses the process, extracting heat from the outdoor air (even at low temperatures) and transferring it indoors to warm the space. This dual functionality makes it an energy-efficient solution for year-round comfort, as it can be more efficient than traditional furnaces in milder heating conditions. The "remote" designation indicates that this unit is the outdoor component of a split-system heat pump, requiring an indoor coil (air handler or furnace coil) to complete the system.

Important Technical Specifications:

Cooling Capacity (Nominal): 30,000 BTUH (British Thermal Units per Hour). This indicates its cooling power, suitable for medium-sized spaces.
Compressor:
- R.L. Amps: 13.5 A (Rated Load Amps). This is the current drawn by the compressor during normal operation.
- L.R. Amps: 72.5 A (Locked Rotor Amps). This is the high current drawn by the compressor momentarily during startup.
- Type: Scroll Compressor. Scroll compressors are known for their efficiency, quiet operation, and durability compared to older reciprocating compressors.
Condenser Fan Motor:
- Horsepower: 1/6 HP.
- R.L. Amps: 1.1 A.
- L.R. Amps: 2.1 A.
Refrigerant Lines:
- Liquid Line (O.D.): 3/8 inches.
- Suction Line (O.D.): 3/4 inches. These are the recommended sizes for the refrigerant piping connecting the outdoor unit to the indoor coil.
Refrigerant Charge: 189.5 oz. This is the factory-specified amount of refrigerant (likely R-22, given the age of the document, though not explicitly stated) required for optimal performance.
Power Supply: 208/230-60-1 (208 or 230 Volts, 60 Hz, Single Phase). This specifies the electrical requirements for the unit.
Electrical Requirements:
- Min Circuit Ampacity: 18.1 A. This is the minimum current-carrying capacity required for the electrical circuit.
- Max Overcurrent Device: 30.0 A. This is the maximum size for the fuse or circuit breaker protecting the unit.
Electric Conduit Size:
- Power Supply: 1/2 or 3/4 inches.
- Low Voltage: 1/2 inches.
Approximate Shipping Weight: 218 lbs.

Usage Features:

Standard Features for Reliability and Performance:
- Bi-Flow Liquid Line Filter-Drier (Shipped Loose): This component is crucial for maintaining the cleanliness and dryness of the refrigerant system, protecting the compressor from contaminants and moisture. It's bi-flow, meaning it functions effectively in both cooling and heating modes.
- Front Seating Valves: These valves allow for isolation of the refrigerant charge within the outdoor unit, simplifying service and maintenance procedures.
- 5 Minute Anti-Short Cycle Protection: This feature prevents the compressor from rapidly cycling on and off, which can damage the compressor and reduce its lifespan. It ensures a minimum off-time between cycles.
- Automatic Reset High Pressure Switch: This safety device automatically shuts down the compressor if refrigerant pressure becomes too high, preventing damage to the system. It resets automatically once the pressure returns to a safe level.
- Automatic Reset Loss Of Charge Switch: This switch detects if the refrigerant charge is too low, which can lead to compressor damage due to lack of lubrication and cooling. It automatically shuts down the unit and resets when the charge is restored.
- Adaptive Demand Defrost: This intelligent defrost system monitors various parameters to determine when defrosting is necessary, optimizing energy efficiency by only defrosting when ice accumulation impacts performance.
- Spring Loaded Check Valves: These valves ensure proper refrigerant flow direction in both heating and cooling modes, critical for heat pump operation.
- Eight Pole Motor: Refers to the condenser fan motor, often indicating a design for quieter operation and potentially better efficiency.
- Dual Defrost Sensors: Enhance the accuracy and reliability of the adaptive defrost system.
Accessories for Enhanced Functionality and Protection:
- Fossil Fuel Kit (FFK03A): Allows the heat pump to be integrated with a fossil fuel furnace for dual-fuel heating systems, providing optimal efficiency by using the heat pump in milder conditions and the furnace in colder conditions.
- Compressor Sound Blanket (CSB08A): Reduces operational noise from the compressor, leading to quieter outdoor unit operation.
- Ambient Temperature Kit (ATK05A): Likely used to extend the operating range or improve performance in specific ambient temperature conditions.
- Hard Start Kit (HSK10A): Provides an extra boost of power to the compressor during startup, which can be beneficial in areas with low voltage or for older compressors, reducing startup stress.
- Freeze Protector Kit (FSK01A) (Installed on Indoor Coil): This kit protects the indoor coil from freezing, which can occur if airflow is restricted or refrigerant charge is low, preventing damage to the coil.
Restrictor Orifice Note: When pairing with a restrictor orifice indoor coil, specific orifice part numbers (B1443808 or 11076306) with a 0.069 diameter are required. This ensures proper refrigerant metering and system performance.

Maintenance Features:

Electrical Connection Note: Emphasizes the importance of proper electrical connection, fuse/circuit breaker sizing, and wire sizing according to national and local electrical codes. It specifically states to "Use copper wire only," which is a standard safety and performance requirement.
Front Seating Valves: As mentioned, these valves facilitate isolation of the refrigerant charge, making it easier and safer for technicians to perform service or repairs without needing to recover the entire system charge.
Filter-Drier: The inclusion of a filter-drier is a key maintenance feature, as it helps to keep the refrigerant system clean and dry, reducing the likelihood of blockages or corrosion that could lead to costly repairs. Regular replacement of the filter-drier during major service can extend the life of the system.
Automatic Reset Safety Switches: The automatic reset high pressure and loss of charge switches are not just operational features but also maintenance aids. They protect the system from damage and, by resetting automatically, can allow the unit to resume operation once the underlying issue (e.g., temporary high pressure, minor charge fluctuation) resolves itself, though persistent issues would still require professional diagnosis.
Performance Data Tables: The included "Heat Pump Performance Data" tables (Outdoor Ambient Temperature vs. various operational parameters like Amps, HI PR, LO PR, Delta T) are invaluable for technicians during installation and troubleshooting. They allow for verification of system performance against expected values, aiding in diagnosis of issues like incorrect refrigerant charge, airflow problems, or component malfunctions. The note about "nominal CFM and 70° F indoor dry bulb" provides a baseline for these measurements.
ARI Rating Conditions: The shaded area in the performance data tables indicates ARI (Air-Conditioning, Heating, and Refrigeration Institute) rating conditions. This allows for comparison of the unit's performance against industry standards and ensures that the unit meets specified efficiency ratings.
Pressure Measurement Notes: "All Pressures are PSIG. Low pressures are measured at suction service port, high pressures are measured at liquid valve port." This provides clear instructions for technicians on how and where to take accurate pressure readings for diagnostic purposes.