This is a single-zone ductless mini split system for cooling and heating one room without ductwork. It's built for homeowners adding comfort to a bedroom, office, or addition that the central system doesn't reach well.
The Air-Con Serene Series ASRCI4H4S09 / ASREM4H4S09 is a matched outdoor-indoor pair, wall-mounted for straightforward placement above a doorway or on an exterior wall, per Air-Con's published ODU/IDU pairing tables. The system carries AHRI certification and Energy Star qualification per manufacturer data. Note: If you would like to review the manufacturer Product Specifications, Warranty, Brochure, etc., for this system, please refer to the "Resources (System Manuals and Warranty)" Tab above on this page.
System Components
- Outdoor condenser unit: Model ASRCI4H4S09
- Indoor wall-mounted unit: Model ASREM4H4S09
Installation Requirements & Accessories
- Voltage: 208-230V — this system is NOT compatible with 115V-only circuits
- Line set size: [NEEDS VERIFICATION] — not confirmed in manufacturer data provided
- Line Set Sold Separately: professional-grade flare line sets and wiring are required for installation; confirm sizing with your installer before ordering
- This is a standard flare-connection system — not a pre-charged DIY quick-connect kit
- Not a listed match for indoor/outdoor model families outside the ASRCI4H4S09 / ASREM4H4S09 pairing
Pro-Installer Tip
Flare connections on 9,000 BTU wall-mount systems are a common source of slow refrigerant leaks when the flare nut is under- or over-torqued. Confirm every flare joint with a Digital Torque Wrench set to the manufacturer's specified value, then pull the system down below 500 microns with a calibrated vacuum gauge before opening the service valves. Skipping this step leaves moisture and non-condensables in the line set, which shows up later as poor cooling performance or an "E1" communication fault at the indoor head. This work falls under EPA Section 608 refrigerant handling requirements — only a certified technician should open, evacuate, or charge the system.
Key Benefits
- 16 SEER rated efficiency on the 9,000 BTU model per manufacturer data
- Wall-mounted indoor head for flexible room placement
- AHRI-certified matched outdoor/indoor pairing
- Energy Star qualified per manufacturer data
Technical Table
| Spec | Value | Unit |
|---|---|---|
| Cooling Capacity | 9,000 | BTU/h |
| SEER | 16 | SEER |
| Voltage | 208-230 | V |
| Energy Star Certified | Yes | — |
| AHRI Certified | Yes | — |
| Indoor Unit Architecture | Wall Mounted | — |
| Zone Count | 1 | — |
| Outdoor Unit Model | ASRCI4H4S09 | — |
| Indoor Unit Model | ASREM4H4S09 | — |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
Compatibility & Fitment
- Indoor unit ASREM4H4S09 is matched and AHRI-certified only with outdoor unit ASRCI4H4S09
- Compatible with dedicated 208-230V single-phase circuits
- Not compatible with 115V-only circuits
- Line set and wiring are not included as a pre-charged kit — this is a flare-connection system requiring field-installed line set and professional vacuum evacuation
- Not a listed match for other Air-Con Serene Series capacities (12,000 / 18,000 / 24,000 BTU) — each capacity pairs only with its own listed indoor/outdoor model numbers
FAQ
What breaker size do I need for this system?
Breaker size is [NEEDS VERIFICATION]. Manufacturer data confirms a 208-230V power supply for this system; consult the unit's nameplate or installation manual for the exact breaker and wire sizing before running a dedicated circuit.
Is professional installation required to keep the warranty valid, or is this a true DIY kit?
This is a standard flare-connection system, not a DIY pre-charged kit. Professional installation by a licensed HVAC technician is required to maintain the manufacturer warranty.
Is the line set included, and if not, what size do I need to buy?
Line set sizing is [NEEDS VERIFICATION] in the manufacturer data provided. This is a flare-connection system requiring a licensed installer to select and install the correct line set diameter for a 9,000 BTU application.
Does this system work in cold climates (low-ambient heating)?
Low-ambient heating performance and operating temperature range are [NEEDS VERIFICATION] in the manufacturer data provided for this model.
Compliance & Warranty
Installation by a licensed HVAC professional is required to maintain warranty. Warranty term length and coverage details are [NEEDS VERIFICATION] — refer to the "Resources (System Manuals and Warranty)" Tab above for the manufacturer's full warranty documentation.
