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  • Products and Solutions
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    Heating and Cooling
    • Air Conditioners
    • Air Handlers
    • Evaporator Coils
    • Furnaces
    • Geothermal/Water-Source Heat Pumps
    • Heat Pumps
    • Mini-Split Systems
    • Packaged Units
    Indoor Air Quality
    • Energy Recovery Ventilator
    • Hybrid Electronic Air Cleaner
    • Media Air Cleaners
    • Portable Air Cleaners
    • Steam Humidifier
    • Ultraviolet Air Treatment System
    • Whole-house Bypass Humidifier
    • Whole-house Dehumidifier
    • Whole-house Fan-powered Humidifier
    Packaged and Split DX Systems
    • Commercial Split Systems
    • Dedicated Outside Air Systems
    • Packaged Outdoor Units
    • Packaged Rooftop Units
    • Water-Source Heat Pumps
    Thermostats
    • SHC350 Smart Home Control Thermostat
    • SHC510 WiFi Touch Screen Thermostat
    • SHC510 Communicating Zoning System
    • Universal Thermostat Adapter
    Ductless and VRF Systems
    • Duct-Free Mini Split Systems
    • Variable Refrigerant Flow Systems
    Parts
    • Genuine Parts
  • Buying YORK®
    Back
    Close Buying YORK®
    Getting Started
    • Installing a New System
    • Price Guide
    • Purchase Process
    • Repair or Replace?
    • Working with a Dealer
    • Energy Savings Calculator
    • Side Discharge and Top Discharge HVAC Units
    • Summer Offers
    HVAC 101
    • How HVAC Systems Work
    • HVAC Glossary
    • Improving Air Quality
    • Understanding Energy Ratings
    Financing & Savings
    • Financing
    • Rebates & Savings
    • Canada Greener Homes Grant
    National Accounts
  • Owner Resources
    Back
    Close Owner Resources
    Maintenance
    • Pre-service Checklist
    • Troubleshooting Guide
    Warranty and Registration
    • Warranties
    Homeowner Support
    Energy Savings Calculator
  • YORK® Advantage
    Back
    Close YORK® Advantage
    Proven Quality
    Awards and Recognition
    Certified Comfort Experts
    Sustainability
    • Electrification and Decarbonization
    • Refrigerant Transition
  1. YORK®
  2. Commercial Equipment
  3. Ductless and VRF Systems
  4. Variable Refrigerant Flow Systems
  5. VRF Non-Ducted 4-Way Cassette Indoor Unit
YIC4 B21S product image
  • YIC4 B21S thumbnail

VRF Non-Ducted 4-Way Cassette Indoor Unit

8,000-48,000 BTUh (0.7-4.0 Tons)

YORK® Variable Refrigerant Flow (VRF) 4-way Cassettes feature multiple fan speeds, and adjustable 4-way airflow and 4 air volume settings.

  • Compact, lightweight design and standard decorative panels ideal for tight spaces and discrete installations
  • Features multiple fan speeds, 4-way airflow and 4 air volume settings – including Ultra Hi for higher ceilings
  • Optional efficiency and indoor air quality (IAQ) enhancements available
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VRF Non-Ducted 4-Way Cassette Indoor Unit

  • Overview
  • Benefits
  • Features
  • Product Literature
  • Related Products

    Flexible Design for Dynamic Rooms

    Tight spaces and high ceilings can make indoor comfort a challenge. YORK® VRF 4-way Cassettes solve these problems in a lightweight, ceiling-mounted design.YORK® 4-way Cassette Indoor Units accommodate a variety of room demands using multiple fan speeds, adjustable, 4-way airflow and 4 air volume settings – including Ultra Hi for higher ceilings. Included air filter and condensate pumps increase reliability. Efficiency and indoor air quality (IAQ) options are available to further enhance performance.
    Flexible Design for Dynamic Rooms

    Benefits

    Flexible Design
    FLEXIBLE DESIGN

    Multiple fan speeds, adjustable, 4-way airflow and 4 air volume settings meet various room demands.

    Reliable Performance
    RELIABLE PERFORMANCE

    Integrated condensate pump and air filter increase reliability.

    Enhanced Feature Options
    ENHANCED FEATURE OPTIONS

    Optional fresh air kit and antibacterial filter enhance IAQ levels. An optional motion and radiant heat sensor optimize efficiency.

    Features

    • Multiple fan speed settings
    • 4-way airflow can be configured for 2-way or 3-way
    • Features uniform panel sizing and standard decorative panel finish
    • Optional motion and radiant heat sensor for shutoff and activation in response to room occupancy to increase efficiency
    • 4 air volume settings – including Ultra Hi for higher ceilings
    • Integrated condensate pump and air filter increase reliability
    • Optional fresh air kit and antibacterial filter meet indoor air quality (IAQ) demands
    • Motorized 2-, 3- or 4-channel air flow louvers with louver kit

    Technical Resources

    Document Name
    Description
    Language
    Resource Type

    Catalog

    2020_yorkvrfcatalog_021820_digital_version (English)

    York VRF Catalogue 2020

    English Catalog
    View

    Data Sheet

    vrf line card - york_020519b_press final (English)

    VRF Systems Product Line Data Sheet

    English Data Sheet
    View

    Installation Manual (IM)

    lit 12012110 installation manual remote sensor thm-r2a (English)

    Installation Manual for Remote Sensor

    English Installation Manual (IM)
    View

    Installation Manual (IM)

    lit 12012100 installation manual 3 pin connector cable pcc-1a (English)

    Installation Manual for 3 Pin Connector Cable

    English Installation Manual (IM)
    View

    Installation Manual (IM)

    lit 12013445 installation manual fresh air intake kit (4-way cassette) oaci-160k3 (English)

    Installation Manual for oaci-160k3

    English Installation Manual (IM)
    View

    Installation Manual (IM)

    lit 12012101 duct adapter pd-75a (4-way cassette) (English)

    Installation Manual for pd-75a

    English Installation Manual (IM)
    View

    Installation Manual (IM)

    lit 12012091 filter box b-160h3 (4-way cassette) (English)

    Installation Manual for b-160h3

    English Installation Manual (IM)
    View

    Installation Manual (IM)

    lit 12012111 t-tube connecting kit tkci-160k (4-way cassette) (English)

    Installation Manual for tkci-160k

    English Installation Manual (IM)
    View

    Installation Manual (IM)

    lit 12013321 im supplement indoor unit (English)

    Installation Manual for Supplement for Indoor Unit

    English Installation Manual (IM)
    View

    Operation Manual (OM)

    lit 12013322 om supplement for indoor unit (English)

    Operational Manual for Supplement for Indoor Unit

    English Operation Manual (OM)
    View

    Operation Manual (OM)

    lit 12012066 operation manual ir receiver kit c4irk01 4-way cassette (English)

    Operation Manual for c4irk01

    English Operation Manual (OM)
    View

    Installation Manual (IM)

    lit 12012103 air outlet shutter plate for 4-way cassette(pi-160ls2) (English)

    Installation Manual for pi-160ls2

    English Installation Manual (IM)
    View

    Specification Guide

    (h,y)ic4012b21s submittal (English)

    (H,Y)IC4012B21 Submittal Data Sheet

    English Specification Guide
    View

    Specification Guide

    (h,y)ic4015b21s submittal (English)

    (H,Y)IC4015B21 Submittal Data Sheet

    English Specification Guide
    View

    Specification Guide

    (h,y)ic4018b21s submittal (English)

    (H,Y)IC4018B21 Submittal Data Sheet

    English Specification Guide
    View

    Specification Guide

    (h,y)ic4024b21s submittal (English)

    (H,Y)IC4024B21 Submittal Data Sheet

    English Specification Guide
    View

    Specification Guide

    (h,y)ic4030b21s submittal (English)

    (H,Y)IC4030B21 Submittal Data Sheet

    English Specification Guide
    View

    Specification Guide

    (h,y)ic4036b21s submittal (English)

    (H,Y)IC4036B21 Submittal Data Sheet

    English Specification Guide
    View

    Installation Manual (IM)

    lit 12012014 im decorative panel (4-way cassette) p-ap160na2 and p-ap160nae1 (English)

    Installation Manual for p-ap160na2 and p-ap160nae1

    English Installation Manual (IM)
    View

    Specification Guide

    (h,y)ic4048b21s submittal (English)

    (H,Y)IC4048B21 Submittal Data sheet

    English Specification Guide
    View

    Specification Guide

    (h,y)ic4008b21s submittal (English)

    (H,Y)IC4008B21 Submittal Data Sheet

    English Specification Guide
    View

    Operation Manual (OM)

    lit-12012618 om 4-way cassette indoor units (English)

    Operation Manual for 4-way cassette indoor units

    English Operation Manual (OM)
    View

    Installation Manual (IM)

    lit-12012613 im 4-way cassette indoor units (English)

    Installation Manual for 4-way cassette indoor units

    English Installation Manual (IM)
    View

    User Guide

    service parts list ceiling suspended ics_b21s (English)

    Service Parts List for ics_b21s

    English User Guide
    View

    Technical Guide

    lit 12012560 em 4-way cassette indoor units (English)

    Engineering Manual for 4-way cassette indoor units

    English Technical Guide
    View

    Specification Guide

    lit 12012569 sm 4-way cassette indoor units (English)

    Service Manual for 4-way cassette indoor units

    English Specification Guide
    View
    No resource found for selected filter

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    Related Products

    VRF Wireless Zone Controller

    VRF Wireless Zone Controller

    • Temperature range limit
    • Setback function
    • Occupancy-based operation (available on select indoor units)
    VRF Simplified Wired Controller

    VRF Simplified Wired Controller

    • Small size for discreet applications
    • Controls one to 16 indoor units, applying the same settings
    • Error code diagnosis makes troubleshooting easier
    VRF Programmable Wired Zone Controller

    VRF Programmable Wired Zone Controller

    • Controls temperature, mode and fan speed
    • Features a seven-day time with multiple set points
    • Controls up to 16 indoor units

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