York YIC4018B21S - User Manual

ENGINEERING MANUAL
INVERTER-DRIVEN MULTI-SPLIT SYSTEM
HEAT PUMP AIR CONDITIONERS
Engineering Manual
TC-17005
Technical Catalog for Outdoor Unit
< Indoor Units >
 ●4-WayCassette
  (H,Y,C)IC4008B21S
  (H,Y,C)IC4012B21S
  (H,Y,C)IC4015B21S
  (H,Y,C)IC4018B21S
  (H,Y,C)IC4024B21S
  (H,Y,C)IC4030B21S
  (H,Y,C)IC4036B21S
  (H,Y,C)IC4048B21S

Summary

Important Notice and Safety Summary

Introduction and Safety Guidelines

Overview of the manual and crucial safety instructions for operation.

Signal Words and General Precautions

Definitions of warning symbols and general safety measures for installation.

Property Damage Precautions

General Precautions for Property Damage

Measures to prevent property damage during installation and operation.

Installation Precautions

Installation Guidelines and Warnings

Specific instructions and warnings for unit installation.

Refrigerant Precautions

Refrigerant Handling Safety Procedures

Safety measures and procedures for handling refrigerants.

Electrical Precautions

Electrical Safety and Wiring Guidelines

Guidelines for safe electrical wiring and connections.

Product Features

General Information and Model Line-up

Overview of VRF systems and 4-Way Cassette model range.

Comfortable Airflow Control Features

Motion Sensor Functionality

Details on how motion sensors detect human activity for comfort control.

Radiation and Discharge Air Sensors

4-Way Cassette Unit Details

Unit Nomenclature and Model Line-up

Explanation of model naming conventions and available unit models.

General Technical Data

Dimensional Data and Clearances

Electrical Specifications

Control System Overview

Safety and Control Device Settings

Wiring Diagram and Connections

Schematic illustrating electrical connections within the indoor unit.

Optional Parts and Accessories

IR Receiver Kit Installation Procedure

Optional Functions of IR Receiver Kit

Unit Identification and Operation Modes

Test Run and Alarm Indication Procedures

Procedures for test runs and understanding alarm codes.

Selection Data

Selection Guide

Cooling Capacity Tables

Data tables for cooling capacity at various conditions.

Heating Capacity Tables

York YIC4018B21S Specifications

General

Model Number	YIC4018B21S
Category	Air Conditioner
Cooling Capacity	18000 BTU/hr
Refrigerant	R410A
Operating Ambient Temperature	65°F to 115°F (18°C to 46°C)