Durastar DRUM4260S2A & DRU1H48S2A 48,000 BTU 16.5 SEER2 Multi-Position Air Handler Sirius Heat Heat Pump System - R454B

Durastar DRUM4260S2A & DRU1H48S2A – 48,000 BTU R-454B Multi-Position Air Handler Mini-Split Heat Pump System
The Durastar DRUM4260S2A and DRU1H48S2A system delivers 48,000 BTU of ducted comfort with Sirius Heat™ technology, providing reliable heating down to –22 °F for large residential or light commercial spaces. Multi-position installation and inverter performance ensure efficient, quiet operation year-round.

General Information
System Type: Multi-position air handler mini-split heat pump system (indoor & outdoor)
Indoor Model: DRUM4260S2A
Outdoor Model: DRU1H48S2A
Capacity: 48,000 BTU Heating & Cooling
Room Size: Large homes or commercial applications
Operating Modes: Cool, Heat, Aux Heat, Dry, Fan, Auto
ENERGY STAR®: Several certified pairings available (varies by AHRI)
Refrigerant/Lines: R-454B; liquid 3/8″, gas 3/4″

Key Features
• Sirius Heat™: Full heating at 0 °F; operation to –22 °F
• Inverter Technology: Variable-speed compressor for efficiency and comfort
• Multi-Position Installation: Vertical upflow/downflow or horizontal (L/R)
• Quiet Operation: Indoor as low as 34 dB(A); outdoor 65 dB(A)
• Coil Protection: All-aluminum coil with Golden Fin coating
• Built-In Base Pan Heater for winter readiness
• Safety: A2L refrigerant leak detection and auto-protection features
• IAQ Ready: Humidifier ports; 24 V thermostat compatibility; DRSTAT101 included
• Optional Electric Heat: Compatible with 5–15 kW kits
• Moisture Removal: Up to 195.3 pints/day

Specifications (Rated Conditions)
Cooling Capacity (Rated/Range): 48,000 BTU | 15,600–51,000 BTU
Heating Capacity (Rated/Range): 50,000 BTU | 15,500–57,300 BTU
SEER2 / EER2: 16.5 / 10.5
HSPF2 (Region 4 / Region 5): 9.5 / 8.0
COP (47 °F / 17 °F / 5 °F): 3.4 / 2.7 / 1.9
Indoor Airflow (CFM – Turbo/Hi/Mid/Lo): 1601.0 / 1471.5 / 1283.1 / 1094.8
Operating Temp Range (Cooling/Heating): –22 °F–122 °F / –22 °F–75 °F
Electrical: Indoor 115/208/230 V • 1-Ph • 60 Hz; Outdoor 208/230 V • 1-Ph • 60 Hz
Max Line Length/Height Diff: 246 ft / 98.4 ft
Indoor Unit Dimensions/Weight: 53″H × 24-1/2″W × 22-5/8″D • 162.9 lb
Outdoor Unit Dimensions/Weight: 38-9/16″W × 16-3/8″D × 38-3/8″H • 201.1 lb

Included Components
• DRUM4260S2A multi-position air handler
• DRU1H48S2A Sirius Heat™ outdoor condenser
• DRSTAT101 programmable wired thermostat
• Built-in base pan heater

Ideal For
Contractors, property managers, and homeowners needing a high-capacity, cold-climate ducted solution. This pairing offers flexible installation, durable construction, and dependable performance in extreme temperatures.