This document describes the Rheem RRKA- Standard Efficiency 10-SEER Series Gas Heat/Electric Cooling Package Units, designed for commercial rooftop applications. These units are available in nominal sizes ranging from 3 to 5 tons [10.6-17.6 kW] and are exclusively for 3-phase models.
Function Description:
The Rheem RRKA- series units combine gas heating and electric cooling in a single package, making them suitable for rooftop installations where both heating and cooling capabilities are required. They are designed for standard efficiency operation, meeting 10-SEER (Seasonal Energy Efficiency Ratio) standards. The units are equipped with Copeland® Scroll® compressors for efficient and quiet operation, and feature a tubular heat exchanger design for improved efficiency and durability in heating. Direct-spark ignition and remote flame sensors enhance reliability and efficiency for the gas heating section. The units offer flexible airflow options, including side and down discharge, to accommodate various installation requirements.
Important Technical Specifications:
- Gross Cooling Capacity: 37,400 BTU [11 kW] for 3-ton models, up to 60,500 BTU [17.7 kW] for 5-ton models.
- EER/SEER: 9/10 for 3-ton models, 8.7/10 for 4-ton models, and 9/10 for 5-ton models.
- Nominal CFM/ARI Rated CFM: Ranges from 1200/1200 [566/566] L/s for 3-ton models to 1900/2000 [897/944] L/s for 5-ton models.
- Net Cooling Capacity: Ranges from 36,000 BTU [10.5 kW] to 58,000 BTU [17 kW].
- Net Sensible Capacity: Ranges from 24,723 BTU [7.2 kW] to 40,000 BTU [11.7 kW].
- Net Latent Capacity: Ranges from 11,277 BTU [3.3 kW] to 18,000 BTU [5.3 kW].
- Net System Power: Ranges from 4 kW to 6.4 kW.
- Outdoor Coil: Louvered fin type with smooth copper tubes (0.375 in. [9.5 mm] OD), 10.5 sq. ft. [0.98 sq. m] face area for 3-ton models, and 12.76 sq. ft. [1.19 sq. m] for 4-5 ton models. Rows/FPI: 1/18 [7] for 3-ton, 1/22 [9] for 4-ton, and 2/22 [9] for 5-ton.
- Indoor Coil: Louvered fin type with rifled copper tubes (0.3125 in. [7.9 mm] OD), 7.6 sq. ft. [0.71 sq. m] face area for 3-ton models, 10.13 sq. ft. [0.94 sq. m] for 4-ton models, and 12.67 sq. ft. [1.18 sq. m] for 5-ton models. Rows/FPI: 1/18 [7].
- Refrigerant Control: Capillary Tubes for 3-ton models, TX Valves for 4-5 ton models.
- Refrigerant Charge: 62 oz. [1758 g] for 3-ton models, 74 oz. [2098 g] for 4-ton models, and 119 oz. [3374 g] for 5-ton models.
- Heating Input: Ranges from 40,000 BTU [11.7 kW] to 100,000 BTU [29.3 kW].
- Heating Output: Ranges from 32,400 BTU [9.5 kW] to 81,000 BTU [23.8 kW].
- Temperature Rise Range: 20-50°F [11.1/27.8°C] to 45-85°F [25/47.2°C].
- AFUE (%): 80% for all models.
- Steady State Efficiency (%): 77.6% to 78.3%.
- California Seasonal Efficiency (%): 75.1% to 77.3%.
- No. Burners: 2 to 5, depending on heating capacity.
- No. Stages: 1.
- Gas Connection Pipe Size: 0.5 in. [12.7 mm].
Electrical Data:
- Unit Operating Voltage Range: 187-253V.
- Minimum Circuit Ampacity: 20/20 to 30/30.
- Maximum Overcurrent Protection Device Size: 30/30 to 45/45.
- Compressor Motor: 3-phase, 3450 RPM. Horsepower ranges from 3 1/3 HP to 5 HP. RLA: 12.5/12.5 to 18.6/18.6. LRA: 88/88 to 128/128.
- Condenser Motor: 1-phase, 208/230V. Horsepower ranges from 1/5 HP to 1/3 HP. FLA: 1.3 to 1.7. LRA: 2.3 to 4.7.
- Evaporator Fan Motor: 1-phase, 208/230V. Horsepower ranges from 1/2 HP to 3/4 HP. FLA: 2.4 to 4.4. LRA: 4.8 to 9.6.
Physical Dimensions & Weights:
- Net Weight: Ranges from 412 lbs. [187 kg] to 532 lbs. [241 kg].
- Ship Weight: Ranges from 452 lbs. [205 kg] to 577 lbs. [262 kg].
- Dimensions (approximate): 47-5/8" [1209.7 mm] to 50-7/8" [1292.2 mm] width, 47-5/8" [1209.8 mm] to 50-7/8" [1292.2 mm] depth, and 33-5/8" [854.1 mm] to 38-3/4" [984.3 mm] height.
Usage Features:
- Copeland® Scroll® Compressors: Provide maximum efficiency and quiet operation.
- Louvered Condenser Compartment: Protects the coil from yard hazards and weather extremes.
- One-Piece Top with Deep Flange: Helps keep water out of the unit.
- Flanged Air Openings: Supply and return air openings feature a one-inch tall flange to prevent water migration into the ductwork.
- Access Panels with "Weep Holes" and Channels: Further manage water run-off.
- Side and Down Discharge Options: Available on all models for installation flexibility.
- Easily Accessible Blower Section: Features a slide-out blower for easy maintenance.
- MultiFlex® Coil: System-matched coil with low static pressure drop and excellent cooling capacities.
- Convenient Refrigerant Connections: Located for easy service diagnostics.
- Enhanced Fins and Rifled Copper Tubing: Condenser and evaporator coils feature these for better heat transfer and greater efficiency.
- Draft Inducer Motor: Located inside the furnace compartment, designed for quiet, reliable operation.
- In-Shot Gas Burners and Manifold: Efficiently regulate gas flow for combustion.
- Direct-Spark Ignition and Remote Flame Sensors: Provide added reliability and efficiency for the gas heating section.
- Internal Condensate Trap: Eliminates the need for an on-site external trap.
- Easily Accessible Control Box: Simplifies troubleshooting and maintenance.
- Single Point Wiring: Makes installation easier.
- Tubular Heat Exchanger: More efficient and durable than older clamshell designs, backed by a 10-year limited warranty.
Maintenance Features:
- Easy Access Panels: Allow for quick inspection and servicing of internal components.
- Slide-Out Blower Section: Simplifies maintenance and replacement of the blower.
- Convenient Refrigerant Connections: Facilitate easy service diagnostics.
- Easily Accessible Control Box: Streamlines electrical troubleshooting.
- Filter Kit Installation (RXRY-B01): Allows for the use of 1" [25.4 mm] or 2" [50.8 mm] disposable filters, with recommended sizes ranging from 16x20x1 to 24x30x1 depending on cooling capacity. Airflow pressure drop data is provided for both filter types.
- Roofcurb (Full Perimeter) (RXSG-AAA08, RXSG-AAA14, RXSG-AAA24): Hinged corners for fast, easy set-up, simplifying rooftop installation and maintenance access.
- Duct Adapters (RXMC-CA02, RXMC-CA03, RXMC-BA01): Rectangular to round transitions for downflow and sideflow applications, provided with thermal insulation and gaskets for proper sealing.
- Fresh Air Damper (RXRF-FAA1, RXRF-FAB1): Fixed (0-35%) or motorized (0-35%) options to control outside air intake, replacing the unit return air duct cover.
- Economizers (RXRE-CAA30, RXRD-CAM10): Available for downflow units, with 3-position or fully modulating control, enthalpy control, and mixed air sensor, allowing for efficient fresh air intake and management.
- LP Conversion Kits (RXGJ-EP84W, RXGJ-EP85H): For converting units to operate on LP (propane) gas, including necessary orifices and instructions for de-rating input for Canadian applications at high altitudes.
- Canadian High Altitude Kit (RXRX-AH01): For natural gas operation at high altitudes.
- Lift Kit (RXML-A01): Includes 4 lift brackets for temporary installation while lifting the unit into position.
Limited Warranty:
- Factory Standard Heat Exchanger: Ten (10) Years.
- Factory Option Stainless Steel Heat Exchanger: Twenty (20) Years for 3-phase commercial installations, Limited Lifetime for single-phase residential installations.
- Condenser Coil and Evaporator Coil Leaks (factory defects): Five (5) Years.
- Compressor (3-phase models): Five (5) Years.
- Any Other Part: One (1) Year.
- All other parts and components: Five (5) Years, provided they are single-phase products installed in a residential application.
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