York YCH120 User Manual

INSTALL., OPER., MAIN.
PACKAGED LIQUID CHILLERS
AIR COOLED – RECIPROCATING HERMETIC
Supersedes: 150.40-NM20 (587)
Form 150.40-NM20 (597)
MODELS YCAQ10, YCAM12, YCAK14, YCAKI16, YCAG18
YCAR11, YCAN13, YCAL15, YCAJ17 & YCAH19
ALSO
MODELS YCH100, 120, 150, 175, & 200
STYLE C*
00004TG
*WITH MICROPROCESSOR CONTROL PANEL
WITH G.E. II. 4 EPROM (MODEL YCHA100)
WITH G.E. II. 3 EPROM (MODELS YCHA120 THRU 200)
WITH G.E. II. 5 EPROM (MODELS YCHA120 THRU 200)
(See page 2 for further clarifications)

York YCH120 Specifications

General

Brand	York
Model	YCH120
Category	Chiller
Language	English

Summary

Electrical Data

Installation

Location and Foundation Requirements

Details site selection criteria and foundation specifications for proper unit installation.

Unit Controls and Operation (YCHA100)

YCHA100 Control Panel Operation

System Controls and Settings

Fault Code Diagnosis and System Components

Fault Code Diagnosis Procedures

Details the steps for diagnosing system faults by referencing codes and stored data.

System Safeties and Shutdown Controls

Manual Reset Safety Controls

Explains manual reset safety controls for dual systems, covering HP, Power, and Oil Pressure faults.

System Wiring Diagrams

System Start-Up and Operation Procedures

Panel Switches and Operating Sequence

Checking Superheat and Subcooling

Fan Cycling and Compressor Capacity Control

Loading/Unloading Control (RWT)

Optional Loading/Unloading (LWT)

Micro Logic Board Jumpers and Switches

Micro Logic Board Jumper Options (Rev. B)

Preventative Maintenance Schedule

Annual Maintenance Procedures

Trouble-Shooting the YCHA 100 (Style C) Chiller

Trouble-Shooting Chart (YCHA 100)

Lists common problems like 'No Display' or 'A Code' with their causes and solutions.

Unit Controls and Operation (YCHA120, 150, 175 & 200)

Control Panel Overview

Describes the control panel layout and key switches for YCHA120-200 units.

System Wiring Diagrams (YCHA120-200)

System Start-Up and Operation Procedures (YCHA120-200)

Pre-Start System Checks (No Power)

Compressor Capacity Control

Trouble-Shooting the YCHA 120-200 (Style C) Chiller

Trouble-Shooting Chart (YCHA120-200)

Lists common problems like 'No Display' or 'A Code' with their causes and solutions.

Trouble-Shooting Fault Codes (F1, F2, F3)

Condensor Fan Operation

Smart Panel Warnings

Incorrect Service Valve Positioning

Conductive Microboard Cover Warning