
Cooper&Hunter Astoria Wall Mount Indoor Unit — 12,000 BTU • CH-12MASTWM-230VI
Service-friendly top-tier wall mount for single- or multi-zone systems with enhanced airflow and smart control capability.
Overview
The Cooper&Hunter Astoria wall-mounted indoor unit is built for both single-zone and multi-zone applications. This 12,000 BTU model (CH-12MASTWM-230VI) is designed for convenient service access (easy-to-remove blower wheel, front E-Box/PCB access, and front cover kickstand) and improved comfort with a larger inlet/outlet and auto-swing vertical + horizontal louvers. Control options include the included remote, optional wired thermostat, and Smart Kit connectivity for app control.
Highlights
- Convenient service access: designed for quick disassembly and access to key internal components.
- Better airflow coverage: larger inlet/outlet plus auto-swing louvers for smoother distribution.
- Control flexibility: remote included; optional wired thermostat and Smart Kit app control supported.
- Efficiency: listed performance metrics include 14.0 EER2 and system ratings up to 25.5 SEER2 (pairing dependent).
What's Included
- Indoor wall-mounted unit: CH-12MASTWM-230VI
- Handheld remote control
- Smart Kit (for app control), as described
Indoor Specs
| Spec | Details |
|---|---|
| System Type | Single/Multi-zone unit |
| BTU Rated | 12,000 |
| Power Source | 208–230V, 1Ph, 60Hz |
| Voltage Range | 187–253 V |
| Dehumidification | 2.73 pints/day |
| Efficiency | EER2: 14 • SEER2: 25.5 |
| Controller | RG10K-exclusive remote |
| Refrigerant Piping (Liquid / Gas) | 1/4" - 1/2" |
| Unit Dimensions (W×H×D) | 33.66 × 9.09 × 11.69 in |
| Packing Dimensions (W×D×H) | 36.22 × 12.20 × 14.57 in |
| Unit Net / Gross Weight | 22.93 / 28.88 lb |
| Operating Range (Heating) | 32–86°F |
| Operating Range (Cooling) | 60–90°F |
| Minimum Circuit Ampacity (MCA) | 3 A |
| Max Fuse | 15 A |
| Indoor Noise Level (H/M/L) | 38 / 33.5 / 23.5 dB(A) |
| Indoor Air Flow | 382.35 / 335.29 / 229.41 / 176.47 |
| Drainage Pipe Diameter | 5/8" |
Documents & Downloads
- Submittal — Multi — CH-12MASTWM (PDF)
- Submittal — CH-ES12-230VO + CH-12MASTWM-230VI (PDF)
- Submittal — CH-HPR12-230VO + CH-12MASTWM-230VI (PDF)
- Astoria Leaflet 2023 (PDF)
- Accessories Leaflet 2023 (PDF)
- Quick Start Guide (PDF)
- Astoria User Manual (PDF)
- Astoria Owner’s Manual (PDF)
- Remote Manual Content (PDF)
- Multi-Zone Combination — HYPER (PDF)
- Multi-Zone Combination — Regular (PDF)
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- Cooper&Hunter Astoria Wall Mount 2022
Important
Professional installation is recommended. This listing is for the indoor unit only. System efficiency ratings (SEER2) depend on the outdoor unit pairing, line set length, and installation conditions. Verify compatibility and line sizes prior to ordering.
FAQs
Is this indoor unit single-zone or multi-zone?
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