Durastar DRAM18F2A & DRA1H18S2A 18,000 BTU 18.0 SEER2 Multi-Position Air Handler Sirius Heat Heat Pump System - R454B

Durastar DRAM18F2A & DRA1H18S2A – 18,000 BTU R‑454B Multi-Position Air Handler Mini‑Split Heat Pump System
The Durastar DRAM18F2A and DRA1H18S2A mini-split system provides 18,000 BTU of efficient, whole-home comfort with Sirius Heat™ performance down to –22 °F. Designed with a flexible multi-position air handler and advanced inverter technology, this ENERGY STAR® system offers versatile installation, smart climate control, and reliable year-round performance for cold-climate applications.

General Information
System Type: Multi-position air handler mini-split heat pump system (indoor & outdoor)
Indoor Model: DRAM18F2A
Outdoor Model: DRA1H18S2A
Capacity: 18,000 BTU Heating & Cooling
Room Size: Ideal for medium to large or whole-home comfort
Operating Modes: Cool, Heat, Aux Heat, Dry, Fan, Auto
ENERGY STAR®: Yes
Refrigerant: R‑454B, low-GWP, pre-charged (liquid 1/4″, suction 1/2″)

Key Features
• Sirius Heat™ Technology: Cold-climate operation down to –22 °F
• Inverter Compressor: Smooth, energy-efficient DC rotary performance
• Multi-Position Installation: Horizontal (L/R) or vertical (up/down)
• Quiet Operation: Indoor as low as 30 dB(A); outdoor 59 dB(A)
• Programmable Thermostat: DRSTAT101 included
• Auto Airflow Configuration: Adjusts for optimal comfort
• All-Aluminum Coil: With Golden Fin anti-corrosive protection
• Safety Ready: Built-in A2L refrigerant leak detection system
• Optional Electric Heat: Compatible with 3kW–10kW aux heat kits
• IAQ Ready: Built-in humidifier, condensate switch, and 24V thermostat compatibility
• Moisture Removal: Up to 86 pints/day

Specifications (Rated Conditions)
Cooling Capacity (Rated/Range): 18,000 BTU | 6,000 – 20,400 BTU
Heating Capacity (Rated/Range): 19,500 BTU | 5,000 – 21,600 BTU
SEER2 / EER2: 18.0 / 12.0
HSPF2: 10.0
COP (47°F / 17°F / 5°F): 3.64 / 2.60 / 2.20
Airflow (Indoor - CFM): 489 (Low) to 618 (Turbo)
Operating Temp Range (Cooling/Heating): –22 °F – 122 °F / –22 °F – 75 °F
Electrical: 208/230 V • 1‑Phase • 60 Hz
Indoor Unit Dimensions/Weight: 21″W × 17.5″D × 45″H • 104.7 lb
Outdoor Unit Dimensions/Weight: 35-1/16″W × 13-7/16″D × 26-1/2″H • 99.9 lb

Included Components
• DRAM18F2A multi-position air handler
• DRA1H18S2A Sirius Heat™ outdoor condenser
• Programmable wired thermostat (DRSTAT101)
• Built-in base pan heater

Ideal For
Homeowners, builders, and HVAC pros looking for an efficient, cold-climate ducted solution with smart controls, flexible installation, and powerful year-round performance in larger spaces.