MRCOOL Signature 18,000 BTU Split System Air Handler (Stud‑Mount)

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$1,077.03

The MRCOOL Signature 18000 BTU Stud‑Mount Air Handler delivers efficient, reliable airflow in a compact, space‑saving design. Built to fit between standard wall studs, this unit is ideal for tight installations and pairs with MRCOOL Signature condensers for dependable comfort.

Description

Compact 18000 BTU Stud‑Mount Air Handler for Tight Installations

The MRCOOL Signature 18000 BTU Stud‑Mount Air Handler is engineered for homes that need full central‑ducted performance in a compact footprint. Designed to fit between standard wall studs, this air handler is ideal for interior wall installations, small mechanical spaces, and retrofit applications where a traditional air handler won’t fit.

This stud‑mount model is not multi‑positional. It is designed for vertical installation only, ensuring proper airflow and condensate management. When paired with a compatible MRCOOL Signature condenser, it delivers efficient cooling performance, quiet operation, and long‑term reliability.

Features

  • 18,000 BTU Airflow Capacity Ideal for small homes, apartments, and matched 1.5‑ton systems.
  • Stud‑Mount Vertical Installation Fits between standard wall studs for compact, space‑saving placement.
  • Vertical Orientation Only Not designed for horizontal or downflow configurations.
  • R‑454B Compatible Built for modern, environmentally friendly refrigerant systems.
  • High‑Efficiency ECM Blower Motor Provides quiet, energy‑efficient airflow.
  • Insulated, Low‑Noise Cabinet Reduces sound and prevents condensation.
  • Factory‑Installed TXV Ensures proper refrigerant control and optimal system performance.
  • Pairs With MRCOOL Signature Condensers Ensures proper system performance and SEER2 efficiency ratings.

Why Choose a 118000 BTU Stud‑Mount Air Handler?

Stud‑mount air handlers are ideal for:

  • Homes with limited mechanical space
  • Wall‑cavity installations
  • Apartments and small homes
  • Retrofit projects
  • Tight closets or utility areas

They provide full central‑ducted performance in a compact footprint.

Specifications Table

Feature Details
Airflow Capacity 18,000 BTU
System Type Stud‑Mount Split System Air Handler
Installation Vertical Only
Refrigerant R‑454B Compatible
Blower Motor High‑Efficiency ECM
TXV Factory Installed
Application Compact Central Ducted Homes
Cabinet Fully Insulated
Compatibility MRCOOL Signature Condensers

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Proposition 65 Warning California Residents Only

⚠ California Proposition 65 Warning This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. These warnings are provided in accordance with California law to help consumers make informed decisions. For more information, visit www.P65Warnings.ca.gov (p65warnings.ca.gov in Bing).

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WORKS WITH Signature Series Top Discharge Condensers
CFM 685
TONNAGE 1.5
VOLTAGE (V) 208/230
PHASE 1
CYCLE 60
MAX FUSE BREAKER (A) 3
MIN CIRCUIT AMPACITY (A) 2.5
MOUNT TYPE Stud Mount
COLOR Grey
REFRIGERANT TYPE R-454B
DECIBEL RATING (DBA) 53
AIR FLOW DIRECTION Upflow
DRAIN CONNECTION SIZE 3/4
LIQUID LINE SIZE 3/8
SUCTION LINE SIZE 3/4
BLOWER MOTOR TYPE ECM
BLOWER MOTOR HP 1/3
BLOWER MOTOR SPEEDS 5
BLOWER MOTOR RPM 960
FILTER TYPE Replaceable
FILTER SIZE 15 * 19 * 1
METERING DEVICE Orifice
AUXILIARY HEATER INCLUDED No
AUXILIARY HEATER AVAILABLE Yes
AUXILIARY HEATER SIZES 5kW, 7.5kW, 10kW
UL LISTED Yes
CSA LISTED Yes
ETL LISTED Yes
ENERGY STAR CERTIFIED No
AHRI CERTIFIED Yes
BASE WARRANTY 10 Year Parts, Limited Lifetime Compressor Warranty
BASE PARTS WARRANTY 10 Year
BASE COMPRESSOR WARRANTY Limited Lifetime
CONTAINS ELECTRONICS Yes
CONTAINS CHEMICALS Yes
CONTAINS COMPRESSED GAS Yes
PROPOSITION 65 WARNING Yes
NET DEPTH (IN) 15
NET HEIGHT (IN) 36
NET WIDTH (IN) 20.5
NET WEIGHT (LBS) 88
GROSS DEPTH (IN) 18.11
GROSS HEIGHT (IN) 39.375
GROSS WIDTH (IN) 23.22
GROSS WEIGHT (LBS) 97