Durastar DRUM4260S2A & DRU1H49S2A 49,000 BTU 16.3 SEER2 Multi-Position Air Handler Sirius Heat Heat Pump System - R454B

Durastar DRUM4260S2A & DRU1H49S2A – 49,000 BTU R-454B Multi-Position Air Handler Mini-Split Heat Pump System
The Durastar DRUM4260S2A and DRU1H49S2A system delivers high-capacity, ducted comfort with Sirius Heat™ technology for dependable cold-climate performance down to –22 °F. A multi-position air handler and inverter-driven outdoor unit provide efficient, quiet, year-round operation for large residential or light commercial spaces.

General Information
System Type: Multi-position air handler mini-split heat pump system (indoor & outdoor)
Indoor Model: DRUM4260S2A • Outdoor Model: DRU1H49S2A
Capacity: 49,000 BTU Heating & Cooling (rated heating 56,000 BTU; rated cooling 48,000 BTU)
Operating Modes: Cool, Heat, Aux, Dry, Fan, Auto
ENERGY STAR®: Several certified pairings available overall (pairing-specific status not listed in submittal)
Refrigerant/Lines: R-454B; liquid 3/8″, gas 3/4″; max line 246 ft; max lift 98.4 ft

Key Features
• Sirius Heat™: High heating capacity at 0 °F; operation to –22 °F (heating & cooling)
• Inverter Technology: Twin-rotary inverter compressor on 49K model for efficiency and stability
• Multi-Position Installation: Vertical upflow/downflow or horizontal left/right
• Quiet Operation: Indoor as low as 34.5 dB(A) (Lo); outdoor 65 dB(A) (Hi)
• Advanced Coil Protection: All-aluminum coil with anti-corrosive fin coating (Golden Fin)
• Cold-Weather Readiness: Base pan heater installed on outdoor unit
• Safety & Diagnostics: A2L refrigerant leak detection; auto protections
• IAQ Ready & Controls: Built-in humidifier/IAQ ports; 24 V thermostat compatible; DRSTAT101 included

Specifications (Rated Conditions)
Cooling (Rated/Range): 48,000 BTU | 11,400–56,300 BTU • SEER2/EER2: 16.3/11.7
Heating (Rated/Range): 56,000 BTU | 8,100–64,500 BTU • HSPF2 (R4/R5): 9.0/8.0 • COP @ 47 °F: 3.1
Low-Temp Heating: 45,000 BTU @ 17 °F , 52,000 BTU @ 5 °F , 31,900 BTU @ –22 °F (H32/H42 data)
Indoor Airflow (CFM): 1807/1583/1359/1136 (Turbo/Hi/Mid/Lo)
Indoor Noise (dB[A]): 54.5/52/49.5/34.5 (Turbo/Hi/Mid/Lo) • Outdoor Noise: 65 dB(A)
Operating Range (Cooling/Heating): –22 °F–122 °F / –22 °F–75 °F
Electrical: Indoor 115/208/230 V ; Outdoor 208/230 V , 1-Ph, 60 Hz • Outdoor MCA/MOCP: 40 A/40 A
Refrigerant Charge (ODU): 183.42 oz (5.2 kg) ; Addl. charge 0.69 oz/ft (65 g/m)

Dimensions & Weights
Indoor (DRUM4260S2A): 53″ H × 24-1/2″ W × 22-5/8″ D ; Net 162.92 lb
Outdoor (DRU1H49S2A): 37-1/2″ W × 52-1/2″ H × 16-3/8″ D ; Net 242.95 lb

Included Components
• DRUM4260S2A multi-position air handler • DRU1H49S2A Sirius Heat™ outdoor condenser • DRSTAT101 programmable wired thermostat • Built-in base pan heater

Ideal For
Contractors and property owners needing a high-capacity, cold-climate ducted solution for large homes or light commercial spaces, with flexible installation, durable construction, and verified low-temperature performance.