MRCOOL
MRCOOL Signature 18,000 BTU Split System Air Handler Stud Mount
1.5 Ton | R-454B | 208/230V
- 1.5 Ton capacity
- Uses R-454B refrigerant
- Runs on 208/230V power
Key Specifications
Product Overview
Enhance your HVAC setup with the MRCOOL® Signature Series 18K Stud Mount Air Handler—designed for exceptional versatility, efficiency, and simplified installation. Built to fit between standard wall studs, this compact and space-saving unit is ideal for areas where traditional air handlers can't be installed, offering flexible solutions for a variety of applications.
Though slim in design, this air handler delivers robust heating and cooling performance when matched with a compatible heat pump or condenser. It offers both front and bottom return air configurations, allowing you to tailor the setup to your specific space and airflow needs.
Constructed with a durable galvanized steel cabinet and featuring advanced blower technology, the MRCOOL® Signature Series 18k Stud Mount Air Handler ensures quiet operation and long-lasting reliability. Full cabinet insulation helps reduce condensation and energy loss, while the high-efficiency ECM motor provides consistent airflow and improved energy savings throughout your home.
A built-in filter rack allows for quick and easy filter changes, and optional electric heat kits are available to boost performance during colder months.
Backed by a 10-year limited parts warranty, this unit delivers peace of mind along with performance. Whether you're remodeling, upgrading, or building new, the MRCOOL® Signature Series 18k Stud Mount Air Handler is a dependable, space-conscious solution built for comfort and convenience.
Additional specifications
| UPC | 840255595919 |
|---|---|
| Series | Signature Series Stud Mount Air Handler |
| Configuration | Stud Mount |
| Airflow (CFM) | 685 |
| Cycle (Hz) | 60 |
| Min circuit ampacity (A) | 2.5 |
| Max fuse / breaker (A) | 3 |
| Blower motor type | ECM |
| Blower motor HP | 1/3 |
| Blower speeds | 5 |
| Metering device | Orifice |
| Drain connection (in) | 3/4 |
| Filter type | Replaceable |
| Filter size | 15 * 19 * 1 |
| Mount type | Stud Mount |
| Aux heater included | No |
| Aux heater available | Yes |
| Aux heater sizes (kW) | 5kW, 7.5kW, 10kW |
| AHRI certified | Yes |
| ENERGY STAR certified | No |
| UL listed | Yes |
| ETL listed | Yes |
| Parts warranty (years) | 10 Year |
| Compressor warranty (yrs) | Limited Lifetime |
| Shipping W x H x D (in) | 23.22 x 39.375 x 18.11 |
| Shipping weight (lbs) | 97 |
Documents
WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.
Technical Specifications
Performance
| System Type | Air Handler |
|---|---|
| Tonnage | 1.5 Ton |
| Sound Level | 53 dBA |
Electrical & Fuel
| Voltage | 208/230V |
|---|---|
| Phase | Single Phase |
| Refrigerant | R-454B |
| Connection Size | Liquid 3/8" / Suction 3/4" |
Physical & Certifications
| Dimensions (W x H x D) | 20.5 x 36 x 15 |
|---|---|
| Weight | 88 lb |
| Color / Finish | Grey |
Shipping & Delivery
Manufacturer Warranty
Covered by MRCOOL's limited warranty. Warranty terms are set by MRCOOL and differ by product line — whether registration is required, and whether the installation has to be performed by a state-licensed HVAC contractor, is not the same across the range. In every case coverage depends on the unit being installed according to MRCOOL's instructions and all applicable codes and permits. MRCOOL's warranty document for this model is the controlling source; ask us and we'll send you the one that applies.
Professional Installation Recommended
Most HVAC equipment must be installed and connected by a licensed professional to remain safe, code-compliant, and eligible for manufacturer warranty coverage. If you're unsure about installation requirements, contact us before you order.
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