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Cooper&Hunter

Cooper&Hunter One-way Ceiling Cassette Ductless Mini Split AC Indoor Unit – 18000 BTU

SKU: CH-RSH18MCT1W

System highlights
AC Type
One-way Cassette
Refrigerant Type
R454B
Brand
Cooper&Hunter
Indoor Unit
18000 BTU (1.5 TON)
Voltage
208-230V
Looking For
One-way Cassette
Cooling Area (sq.ft.)
550-1000
Installation Kit

NOTE: THE DEFAULT SELECTION DOES NOT INCLUDE AN INSTALLATION KIT. UPGRADE YOUR SELECTION TO ADD TO YOUR ORDER.

Price

$1,282.00
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Quantity
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Cooper&Hunter One-Way Ceiling Cassette Indoor • R454B • 230V • Single Zone/Multi-zone

Cooper&Hunter One-Way Ceiling Cassette Indoor (6K–12K Adjustable) — CH-RSH06-12MCT1W

Slim one-way cassette designed to fit between joists, with dip-switch capacity selection (6K/9K/12K), built-in pump, built-in breaker, sensors, and built-in Smart Kit + included wall thermostat.

Overview

The Cooper&Hunter CH-RSH06-12MCT1W is a one-way ceiling cassette indoor unit engineered for smaller spaces and tight framing. Its format is designed to sit cleanly between structural ceiling beams and route conduits with minimal intrusion (commonly requiring only a small wall penetration for line/conduit routing). Using R454B refrigerant, this model supports single-zone applications and can be used in matched multi-zone configurations when paired correctly. A key advantage is the ENC1 dip switch capacity selection, letting you set the unit for 6K, 9K, or 12K operation to better match the room load. Reliability and service features include a built-in water pump and a built-in circuit breaker, plus double-row tack holes to accommodate different joist sizes. Comfort and monitoring are enhanced by a refrigerant sensor and a humidity sensor, while TU1 copper tubing supports efficient heat transfer and durability. Control options include a built-in Smart Kit (C&H app), remote control, and wall thermostat.

Highlights

6K / 9K / 12K Selectable SEER2 23 EER2 13 R454B One-Way Discharge Built-in Pump Built-in Circuit Breaker Humidity Sensor Refrigerant Sensor TU1 Copper Tubes Built-in Smart Kit (App) Wall Thermostat
  • Fits between joists: Designed for beam/joist spacing with flexible mounting options.
  • Adjustable capacity: ENC1 dip switch sets output to 6K, 9K, or 12K to match the space.
  • Built-in pump + breaker: Added reliability and simplified installation planning.
  • Smarter monitoring: Refrigerant sensor + humidity sensor help maintain stable indoor conditions.
  • Durable internals: TU1 copper tubing supports efficient heat transfer and longevity.
  • Modern control: Built-in Smart Kit (C&H app) plus remote control and wall thermostat.
ModelCH-RSH06-12MCT1W
CapacitySelectable: 6K / 9K / 12K
Line Set1/4" (liq) / 3/8" (gas)
Drain3/4" drain connection

What's Included

  • Indoor one-way ceiling cassette unit: CH-RSH06-12MCT1W
  • ENC1 dip switch capacity selection (6K/9K/12K)
  • Built-in condensate pump
  • Built-in circuit breaker
  • Built-in Smart Kit (C&H app control)
  • Remote control (included)
  • Wall thermostat (included / supported)

Indoor Specs

Spec Details
Model CH-RSH06-12MCT1W
Refrigerant Type R454B
System Type Single Zone/Multi-zone
BTU Rated 12,000 (capacity selectable: 6K / 9K / 12K via ENC1 dip switch)
Power Source 208–230V, 1Ph, 60Hz
Voltage Range 187–253 V
SEER2 / EER2 23 / 13
Minimum Circuit Ampacity (MCA) 3 A
Max Fuse 15 A
Dehumidification 3.57 pints/day
Controller Wire controller + remote controller available
Refrigerant Piping (Liquid / Gas) 1/4" / 3/8"
Indoor Noise (H/M/L) 41 / 37 / 33 dB(A)
Indoor Air Flow 353.2 / 312 / 282.5 / 247.2
Unit Dimensions (W×H×D) 50.31 × 13.19 × 8.98 in
Unit Net / Gross Weight 45.19 / 82.45 lb
Packing Dimensions (W×D×H) 57.60 × 22.48 × 22.64 in
Drain Pipe Diameter 3/4"
Operation Range (Cooling) 60–90 °F
Operation Range (Heating) 32–86 °F
ESP Range /
Filter Dimensions /

Important

Installed by a licensed HVAC professional. This is an indoor cassette unit intended to be matched with a compatible outdoor system. Capacity selection (6K/9K/12K) is performed via the ENC1 dip switch and should be set before commissioning. Confirm electrical requirements (208–230V), piping sizes (1/4" liquid, 3/8" gas), and proper condensate routing for the built-in pump.

FAQs

How does the 6K / 9K / 12K adjustment work?
This model uses the ENC1 dip switch for capacity selection. Set the switch to 6K, 9K, or 12K to match the space before startup/commissioning.
Is Wi-Fi / app control included?
Yes. It includes a built-in Smart Kit for control via the C&H app.
Does it have a condensate pump?
Yes. It includes a built-in water pump for condensate management.
What line sizes are required?
1/4" liquid and 3/8" gas.
Is this single-zone or multi-zone?
It is listed as a single-zone indoor unit, and it can be used in matched multi-zone applications when compatible with the outdoor system.