System Overview
750 sq Ft
Coverage Area
230 V
Voltage
21 SEER2
Efficiency
36 dBA
Sound Level
Summary & Features
Best For
Zoned heating and cooling ideal for large single rooms, open-plan spaces, or finished basements.
If you need reliable cooling and supplemental heating for one room up to 750 sq. ft. and want to skip the cost of hiring an HVAC installer, this Quick Connect system is built for you. The pre-charged line set means no refrigerant handling. Just mount, connect, and go. You will need a dedicated 230V electrical circuit and the ability to mount the indoor unit on a wall and position the outdoor unit nearby.
Ideal Use: Year-round climate control for a single room like large single rooms, open-plan spaces, or basements, without existing ductwork or a professional installer.
Advanced Features
Smart Controls
- Alexa & Google Assistant
- iOS & Android app
- Remote Control included
- 24-hour timer
- 7 fan speeds
- Auto Defrost and auto restart capable
Premium Performance
- 21 SEER2 / 12.95 EER2
- R454B refrigerant
- 4-Way swing louvers
- 3.17 pints/hr dehumidification
Easy DIY Install
- Quick Connect — no vacuum or evacuation
- Pre-charged 1x 25 ft. Line Set
- 230V / 60Hz / 1-Phase power
- 98.43 ft. max lineset length
- Energy Star Certified
Year-Round Comfort
- Cool, Heat, Auto, Dry, Fan Only, Sleep, Energy Saver, Turbo, Quiet modes
- Heating from temperatures 75°F to -4°F
- Cooling from temperatures 5°F to 115°F
- Washable, Tilt-Out filter
Your Purchase Includes
Everything you need for a complete installation
- 1x Indoor Evaporator Unit
- 1x Mounting Bracket + Template
- 1x Optional Extra Foam Insulation (for Insulating Valve Connections)
- 1x Drain Joint
- 1x Drain Joint Rubber Seal
- 4x Flare Nuts (for Conventional Installations)
- 1x Bag Of Wall Anchors & Screws
- 1x Remote Control Wall Bracket
- 1x Outdoor Condenser
- 1x Drain Tube
- 1x Duct Seal (use To Fill Any Gaps)
- 1x Vinyl Wrap (for A Cleaner Look; Some Models May Include 2 Wraps)
- 1x Wall Collar
- 1x 25 Ft. Line Set
- 2x Male Condenser Couplers
- 4x Condenser Anti-vibration Pads
- 1x 5mm Valve Opener
Quick-Connect Installation
Warranty & Manuals
The HVAC Spot Guarantee
7 Years Parts/Compressor ·Free shipping · Expert support · Hassle-free returns
Product Warranty
7-YEAR PARTS & COMPRESSOR WARRANTY: If an internal part, including the compressor, is found to be defective due to a defect in materials or workmanship for a period of 7 years from the date of installation, Perfect Aire will replace the failed defective part without charge.
Manuals & Documents
Everything You Need to Know
PERFORMANCE
Cooling Capacity
18,000 BTU
Heating Capacity
18,000 BTU
Coverage Area
750 sq. ft.
Zones Served
1 (single-zone)
SEER2
21
EER2
12.95
HSPF2 (Region 4)
10
HSPF2 (Region 5)
7.7
Heating COP
3.61
Moisture Removal
3.17 pints/hr
Max Airflow
647.43 CFM
Refrigerant
R454B
SOUND LEVELS
Indoor (Silence Mode)
36 dBA
Indoor (Low)
39 dBA
Indoor (Mid)
41 dBA
Indoor (High)
48 dBA
Outdoor (Max)
58 dBA
DIMENSIONS
Indoor Unit (W x H x D)
42.75 x 12.50 x 9.50 in.
Outdoor Unit (W x H x D)
34 x 25.75 x 12.25 in.
Indoor Package (W x H x D)
46.25 x 15.5 x 12.5 in.
Outdoor Package (W x H x D)
39.25 x 28.50 x 16.50 in.
WEIGHT
Indoor Unit
33 lbs
Outdoor Unit
97 lbs
Indoor Package
39.75 lbs
Outdoor Package
106 lbs
Total Shipping Weight
188 lbs
LINE SET CONNECTIONS
Max Line Set Length
98.43 ft.
Max Elevation (Indoor/Outdoor)
49.21 ft.
Liquid Side (Flare)
0.25 in.
Gas Side
0.5 in.
Drainage
Gravity-fed
FEATURES
Air Direction
4-Way
Modes
Cool, Heat, Auto, Dry, Fan Only, Sleep, Energy Saver, Turbo, Quiet
Auto Restart
Yes
Auto Defrost
Yes
Carbon Filter
Yes
Fan Speeds
7
Control Type
Digital
Remote Control
Yes
Timer
24 programmable
Filter Type
Washable, Tilt-Out
Overload Protection
Yes
SMART HOME
Mobile App
Yes
Amazon Alexa
Yes
Google Assistant
Yes
Apple HomeKit
No
SmartThings
No
Connection Type
Built-in (no hub required)
CERTIFICATIONS
AHRI Certified
Yes
CEC Certified
Yes
Safety listing
ETL
Energy Star
Yes
DOE Certified
Yes
MODEL NUMBERS
Indoor Unit
4PAMSHQCW18
Outdoor Unit
4PAMSHQCO18
Color
White
California Prop 65: This product can expose you to chemicals including lead and lead compounds, which are known to the state of California to cause cancer and birth defects or other reproductive harm. For more information click here.
Operating Temperature Range
Cooling Operating Temp
5°F to 115°F
Heating Operating Temp
75°F to -4°F
Thermostat Range
62°F to 86°F