MRCOOL 9,000 BTU Wall Mount Air Handler – O-09-HP-WMAH-230C-O
$434.12
-
Product Details
- Model Number
- O-09-HP-WMAH-230C-O
- Brand
- MRCOOL
- Condition
- New
Description
* {
box-sizing: border-box;
margin: 0;
padding: 0;
}
#product-container {
font-family: ‘Segoe UI’, Tahoma, Geneva, Verdana, sans-serif;
max-width: 1200px;
margin: 0 auto;
padding: 20px;
color: #000000;
background: #fff;
}
#product-container h1 {
font-size: 2.5em;
color: #D53938;
margin-bottom: 10px;
padding-bottom: 15px;
border-bottom: 3px solid #D53938;
font-weight: 700;
}
#product-container h2 {
font-size: 1.8em;
color: #D53938;
margin: 30px 0 15px 0;
font-weight: 600;
}
#product-container h3 {
font-size: 1.4em;
color: #57A9F9;
margin: 25px 0 12px 0;
font-weight: 600;
}
#product-container p {
line-height: 1.8;
margin-bottom: 15px;
font-size: 1.05em;
color: #000000;
}
.intro-section {
background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
padding: 25px;
border-radius: 8px;
margin: 25px 0;
border-left: 5px solid #D53938;
}
/* Regulatory / shipping / commercial notices. Until 2026-08-06 these colors
were written as inline style attributes by build_notice_section(), which put
brand identity in the body markup and meant two brands’ documents differed
outside the block. See LAYOUT_CONTRACT.md (“Brand theme”). */
.notice-card {
margin: 25px 0;
padding: 18px;
border-left: 4px solid #D53938;
background: #fff4f2;
border-radius: 6px;
}
.notice-card h3 {
margin-bottom: 10px;
color: #D53938;
}
.notice-card ul {
margin: 0 0 0 18px;
padding: 0;
line-height: 1.6;
color: #333;
}
.notice-card p {
line-height: 1.6;
color: #333;
}
.specs-table {
width: 100%;
border-collapse: collapse;
margin: 20px 0;
box-shadow: 0 2px 8px rgba(0,0,0,0.1);
border-radius: 8px;
overflow: hidden;
}
.specs-table thead {
background: linear-gradient(135deg, #D53938 0%, #b32d2c 100%);
color: white;
}
.specs-table th {
padding: 15px;
text-align: left;
font-weight: 600;
font-size: 1.1em;
}
.specs-table td {
padding: 12px 15px;
border-bottom: 1px solid #e0e0e0;
}
.specs-table tbody tr {
background: #fff;
transition: all 0.3s ease;
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.specs-table tbody tr:nth-child(even) {
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.specs-table tbody tr:hover {
background: linear-gradient(90deg, #D53938 0%, #b32d2c 100%) !important;
color: white;
transform: scale(1.01);
box-shadow: 0 4px 12px rgba(213, 57, 56, 0.3);
}
.specs-table tbody tr:hover td {
color: white;
}
.warranty-section {
background: linear-gradient(135deg, #F8F9FA 0%, #e9ecef 100%);
padding: 50px 30px;
border-radius: 15px;
margin: 50px 0;
}
.warranty-section h2 {
color: #D53938;
text-align: center;
margin-bottom: 40px;
font-size: 28px;
}
.warranty-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
gap: 30px;
max-width: 800px;
margin: 0 auto;
}
.warranty-card {
background: white;
padding: 30px;
border-radius: 12px;
text-align: center;
border: 2px solid rgba(213,57,56,0.3);
transition: all 0.3s ease;
}
.warranty-card:hover {
background: rgba(213,57,56,0.05);
border-color: #D53938;
transform: translateY(-5px);
}
.warranty-years {
font-size: 48px;
font-weight: 700;
color: #D53938;
}
.warranty-label {
color: #333;
font-size: 14px;
font-weight: 600;
}
.cta-section {
background: linear-gradient(135deg, #F8F9FA 0%, #e9ecef 100%);
padding: 60px 30px;
border-radius: 15px;
margin-top: 50px;
box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}
.cta-content {
text-align: center;
margin-bottom: 40px;
}
.cta-section h2 {
color: #D53938;
margin: 0 0 15px 0;
font-size: 28px;
font-weight: 700;
}
.cta-section p {
color: #333;
margin: 0;
font-size: 16px;
max-width: 700px;
margin-left: auto;
margin-right: auto;
line-height: 1.6;
}
/* Small print under a warranty grid and under the CTA. Both were written as
inline style attributes until 2026-08-06 — core/layout.py emits bare
classes now, so the whole document’s styling lives in this block.
See LAYOUT_CONTRACT.md (“Brand theme”). */
.warranty-note {
margin-top: 15px;
text-align: center;
color: #666;
font-size: 0.9em;
}
.cta-note {
margin-top: 20px;
text-align: center;
color: #666;
font-size: 0.9em;
}
.compliance-badge {
background: rgba(213,57,56,0.05);
border: 2px solid #D53938;
border-radius: 12px;
padding: 25px 30px;
display: flex;
align-items: center;
gap: 20px;
max-width: 700px;
margin: 0 auto;
transition: all 0.3s ease;
}
.compliance-badge:hover {
background: rgba(87,169,249,0.05);
transform: translateY(-2px);
box-shadow: 0 8px 20px rgba(213,57,56,0.2);
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.badge-icon {
font-size: 32px;
color: #D53938;
font-weight: 700;
background: rgba(213,57,56,0.2);
width: 50px;
height: 50px;
border-radius: 50%;
display: flex;
align-items: center;
justify-content: center;
flex-shrink: 0;
}
.badge-content {
text-align: left;
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.badge-content h3 {
color: #D53938;
margin: 0 0 8px 0;
font-size: 18px;
font-weight: 700;
}
.badge-content p {
color: #555;
margin: 0;
font-size: 14px;
line-height: 1.5;
}
/* CSS-only tabs – no JavaScript required */
.tab-container {
margin: 30px 0;
}
.tab-radio {
display: none;
}
.tab-label {
display: inline-block;
padding: 12px 24px;
background: #f8f9fa;
border: 2px solid #ddd;
border-radius: 8px 8px 0 0;
cursor: pointer;
font-size: 1em;
font-weight: 600;
color: #333;
transition: all 0.3s ease;
margin-right: 5px;
margin-bottom: -2px;
position: relative;
}
.tab-label:hover {
background: #e9ecef;
border-color: #57A9F9;
}
.tab-radio:checked + .tab-label {
background: linear-gradient(135deg, #D53938 0%, #b32d2c 100%);
color: white;
border-color: #D53938;
border-bottom-color: #D53938;
z-index: 2;
}
.tab-panels {
border: 2px solid #ddd;
border-radius: 0 8px 8px 8px;
padding: 20px;
background: #fff;
position: relative;
z-index: 1;
}
.tab-panel {
display: none;
}
/* Show panel based on which radio is checked – supports up to 5 tabs */
.tab-radio:nth-of-type(1):checked ~ .tab-panels .tab-panel:nth-of-type(1),
.tab-radio:nth-of-type(2):checked ~ .tab-panels .tab-panel:nth-of-type(2),
.tab-radio:nth-of-type(3):checked ~ .tab-panels .tab-panel:nth-of-type(3),
.tab-radio:nth-of-type(4):checked ~ .tab-panels .tab-panel:nth-of-type(4),
.tab-radio:nth-of-type(5):checked ~ .tab-panels .tab-panel:nth-of-type(5) {
display: block;
}
@media (max-width: 768px) {
#product-container {
padding: 15px;
}
#product-container h1 {
font-size: 1.8em;
}
#product-container h2 {
font-size: 1.4em;
}
.specs-table {
font-size: 0.9em;
}
.specs-table th,
.specs-table td {
padding: 10px;
}
.compliance-badge {
flex-direction: column;
text-align: center;
padding: 20px;
}
.badge-content {
text-align: center;
}
.cta-section {
padding: 40px 20px;
}
.tab-label {
display: block;
width: 100%;
margin-right: 0;
margin-bottom: 5px;
border-radius: 8px;
}
.tab-panels {
border-radius: 8px;
}
}
MRCOOL 9,000 BTU Wall Mount Air Handler – O-09-HP-WMAH-230C-O
Enjoy reliable heating and cooling with the MRCOOL® OLYMPUS ESTAR® 9k Series air handler, designed to deliver year-round comfort for spaces up to 400 square feet—ideal for single rooms, home offices, garages, and more. Its compact size allows for quick and easy installation, making setup a breeze for your installer.
Equipped with the MRCOOL® Smart HVAC app, this unit offers convenient Wi-Fi connectivity, letting you control it from your smartphone or tablet, no matter where you are. Prefer a more traditional approach? Use the included remote control for simple access to your preferred settings.
Built with efficiency in mind, the unit boasts impressive performance ratings: SEER2 of 25.8, EER2 of 14.9, and HSPF2-4 of 12.5—helping you cut down on energy costs. With multiple indoor fan speeds and whisper-quiet operation at just 47 dB, you’ll barely notice it’s there while enjoying consistent comfort.
Now using eco-friendly R-454B refrigerant, this system is better for the environment without compromising on power or performance.
You’ll also enjoy versatile control options, including voice command compatibility with Amazon Alexa and Google Assistant. Backed by an industry-leading warranty—including a 7-year compressor coverage and a 5-year parts warranty—the MRCOOL® OLYMPUS ESTAR® 9k Series offers advanced technology, dependable performance, and personalized climate control for years to come.
Technical Specifications
| Specification | Value |
|---|---|
| Manufacturer | MRCOOL |
| Model Number | O-09-HP-WMAH-230C-O |
| Product Type | Wall Mount Air Handler |
| Series | Olympus 4th Gen Air Handlers |
| Tonnage | 0.75 |
| Max Coverage Area | Up to 400 |
| Refrigerant | R-454B |
| Voltage | 208/230 V |
| Phase | 1 |
| Mount Type | Wall |
| Color | White |
| Unit Dimensions | 11.81″H x 33.74″W x 9.09″D |
| Shipping Weight | 29.98 lb |
| Parts Warranty | 5-Year |
Compliance & Shipping Notices
- WARNING: This product can expose you to chemicals which are 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.
- Shipping restrictions apply in: GU, PR, VI
Warranty Coverage
5-Year
Professional Installation Required
Certified HVAC technician installation ensures optimal performance, safety compliance, and full warranty protection.
Important: Check state and local codes and ordinances before purchasing. Product availability and compliance requirements may vary by region.
Where the O-09-HP-WMAH-230C-O fits
This is the indoor unit by itself — a wall-mount head. It pairs with a matching MRCOOL outdoor condenser. It is rated at 9,000 BTU. This line is meant for professional installation, with evacuation and charging done by a licensed technician.
See the rest of the range in MRCOOL mini splits, or run the numbers with our HVAC sizing tool. Not sure what pairs with what? Call (877) 843-4822 and we will check it before you buy.
Additional information
| Weight | 29.98 lbs |
|---|---|
| Dimensions | 0.00 × 0.00 × 0.00 in |
| System Type | Mini Split |
| Brand | MRCOOL |
| Tonnage | 0.75 Ton |
| Refrigerant | R-454B |
| Voltage | 208/230V |
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