York MILLENNIUM YCAS 270 Manuals

Manuals and User Guides for York MILLENNIUM YCAS 270. We have 1 York MILLENNIUM YCAS 270 manual available for free PDF download: Manual

York MILLENNIUM YCAS 270 Manual (196 pages)

AIR COOLED LIQUID CHILLER

Brand: York | Category: Chiller | Size: 9.38 MB

Table of Contents
2
Section 1 General Chiller Information & Safety
6
Introduction
6
Warranty
6
Safety
6
Standards for Safety
6
Responsibility for Safety
7
About this Manual
7
Misuse of Equipment
7
Suitability for Application
7
Structural Support
7
Mechanical Strength
7
General Access
7
Pressure Systems
7
Electrical
7
Rotating Parts
8
Sharp Edges
8
Refrigerants and Oils
8
High Temperature and Pressure Cleaning
8
Emergency Shutdown
8
Material Safety Data
9
Section 2 Product Description
12
Introduction
12
General Description
12
Compressor
12
Evaporator
13
Condenser
13
Economizer
14
Oil Separator/System
14
Oil Cooling
15
Capacity Control
15
Power and Control Panel
15
Microprocessor Controls
15
Motor Current Protection
15
Motor Protector Module
16
Current Overload
16
Thermal Overload
17
Current Imbalance
17
Improper Phase Sequence
17
Motor Protector Dip Switch Settings
18
Motor Starting
22
Keypad Controls
22
Display
22
Entry
23
Setpoints
23
Clock
23
Print
23
Program
23
Accessories and Options
23
Multiple Point Power Connection (Standard)
23
Single-Point Power Connection with Individual Circuit Protection
23
Single-Point Power Connection with Combined Circuit Protection
23
Single-Point Power Connection Without Circuit Protection
23
DX Cooler Options
24
PSIG (21 Bar) Waterside Design Working Pressure
24
1-1/2" (38 MM) Insulation
24
Flange Accessory
24
Remote DX Cooler
24
Flow Switch Accessory
24
Star-Delta Compressor Motor Starter
24
Unit Enclosures
24
Fans
24
Sound Reduction Options
24
Unit Nomenclature and Nameplate Engineering Data
25
Basic Part Number
25
Options Section of Part Number
25
Section 3 Handling and Storage
27
Delivery and Storage
27
Inspection
27
Moving the Chiller
27
Lifting Weights
27
Unit Rigging
28
Section 4 Installation
29
Location Requirements
29
Outdoor Installations
29
Indoor Installations
29
Location Clearances
29
Installation of Vibration Isolators
30
Installation
30
Shipping Braces
30
Pipework Connection
30
General Requirements
30
Water Treatment
31
Pipework Arrangement
31
Connection Types & Sizes
32
Cooler Connections
32
Option Flanges
32
Refrigerant Relief Valve Piping
32
Ductwork Connection
32
General Requirements
32
Electrical Connection
33
Power Wiring
33
Standard Units with Multi Point Power Supply Wiring
33
Units with Single-Point Power Supply Wiring
33
Control Supply Transformer
33
Remote Emergency Stop Device
34
Control Panel Wiring
34
Volts Free Contacts
34
Chilled Liquid Pump Starter
34
Run Contact
34
Alarm Contacts
34
System Inputs
34
Flow Switch
34
Remote Run / Stop Switch
34
Remote Print
34
Power and Control Panel Layouts (Wye-Delta Typical)
35
Options Panel Layout (Typical)
36
Logic Section Layout
37
Logic Section Layout with Control Panel Layout
38
Customer Connections
39
Section 5 Commissioning
41
Preparation
41
Preparation - Power off
41
First Time Start-Up
43
Section 6 Operation
44
General Description
44
Start-Up
44
Normal Running and Cycling
44
Shutdown
44
Section 7 Technical Data
45
Flow Rate and Pressure Drop Charts
45
Temperature and Flows
46
Physical Data (English Units)
47
Physical Data (si Units)
48
Operating Limitations & Sound Power Data
49
Electrical Data
50
Multiple Point Power Supply Connection
50
Optional Single-Point Power Supply Connection and Internal Unit Circuit Breakers
52
Electrical Notes
54
Compressor Data
55
Fan Data
55
Elementary Diagram
56
Elementary Diagram - Across-The-Line Start
57
Wiring Diagrams-Across-The-Line Start and Wye-Delta Start (YCAS0250 - YCAS0330)
58
Standard 3 Compressor Power Supplies Wye-Delta Start
59
Wiring Diagram Across-The-Line Start
60
Standard Compressor Power Supplies
62
Across-The Line Start and Wye-Delta Start
62
Connection Diagram
66
Connection Diagram - Electrical Box
68
Elementary Diagram DXST Direct Drive Control Circuit
69
Connection Diagram System Wiring
72
Standard and Remote Evap. Units
72
Elementary Diagram DXST Direct Drive Power Circuit
74
Wiring Diagram -Across-The -Line Start and Wye-Delta Start (YCAS0360 - YCAS0440)
76
Standard 4 Compressor Power Supplies Wye-Delta Start
77
Standard Compressor Power Supplies - Across-The-Line Start
78
Standard Compressor Power Supplies (YCAS0360 - YCAS0440)
80
Connection Diagram Systems 1 & 2
84
Connection Diagram Systems 3 & 4
84
Connection Diagram - Electrical Box
88
Elementary Diagram DXST Direct Drive Control Circuit
90
Connection Diagram System Wiring
93
Standard and Remote Evap. Units
93
Compressor Terminal Box - Systems 1- 4
95
Dimensions
96
YCAS 250 - 270 (English)
96
Ycas 250 - 270 (Si)
98
YCAS 300 - 330 (English)
100
Ycas 300 - 330 (Si)
102
YCAS 360 (English)
104
Ycas 360 (Si)
106
YCAS 400 - 440 (English)
108
Ycas 400 - 440 (Si)
110
Clearances
112
Weight Distribution and Isolator Mounting Positions
113
Installation Instructions for VMC Series AWR/AWMR and CP Restrained Mountings
121
Refrigerant Flow Diagram
122
Process and Instrumentation Diagram
123
Component Locations - 3 Compressor Units
124
Component Locations - 4 Compressor Units
125
Compressor Components
126
System Startup Checklist
132
Unit Checks
132
Panel Checks
133
Initial Start-Up
134
Checking Subcooling and Superheat
134
Checking Economizer Superheat
135
Leak Checking
135
Section 8 Micropanel Contents
136
Chiller Control Panel Programming and Data Access Keys
136
Display and Status Information Keys
136
ON / off Rocker Switch
136
Program & Setup Keys
136
Introduction & Physical Description
137
1.1 General
137
1.2 Keypad & Display
137
1.3 Unit (Chiller) on / off Switch
138
1.4 Microprocessor Board
138
1.5 Ancillary Circuit Boards
138
1.6 Circuit Breakers
139
Current Transformers (C.T.)
139
Transformers
140
Motor Protector Modules
140
EMS/BAS Controls
142
Microprocessor Board Layout
144
Logic Section Layout
145
Anti-Recycle Timer
146
Anti-Coincidence Timer
146
Evaporator Pump Control
146
Compressor Heater Control
146
Evaporator Heater Control
146
Pumpdown (LLSV) Control
146
Alarms
146
Run Status (Chiller)
147
Lead / Lag Compressor Selection
147
Or 4 Compressor Chiller Configuration
147
Status Key: General Status Messages and Fault Warnings
148
General
148
General Status Messages
148
Unit Warnings
149
Anticipation Control Status Messages
150
Unit Fault Status Messages
151
System Fault (Safety) Status Messages
152
Printout on Fault Shutdown
155
Display Keys & Option Switches
156
General
156
Chilled Liquid Temps Key
156
System # Data Keys
157
Ambient Temp Key
157
Motor Current Key
157
Operating HRS / Start Counter Key
158
Options Key & Dip Switch Settings
158
Function Key
160
Print Keys
161
General
161
Oper Data Key
161
Operating Data - Local Display Messages
161
Operating Data - Remote Printout
162
History Key
164
Fault History Data - Local Display Messages
164
Fault History Data - Remote Printout
167
Entry Keys
168
General
168
Numerical Keypad
168
Enter Key
168
Cancel Key
168
Áâ KEYS
168
Setpoints Keys & Chilled Liquid Control
169
General
169
Chilled Liquid Temperature Control
169
Local Cooling Setpoints Key
172
Remote Cooling Setpoints Key
172
Clock Keys
173
General
173
Set Time Key
173
Set Schedule / Holiday Key
174
Manual Override Key
175
Program Key
176
General
176
Program Key - User Programmable Values
176
Programming "Default" Values
180
Compressor Condenser Fan Control
181
Compressor Condenser Fan Control
183
Section 9 Maintenance
185
General Requirements
185
Daily Maintenance
185
Scheduled Maintenance
185
Chiller/Compressor Operating Log
185
Compressor Unit Operation
186
Maintenance Requirements
187
General Periodic Maintenance Checks Standard Units
188
Section 10 Spare Parts
189
Recommended Spares
189
Recommended Compressor Oils
189
Associated Drawings
189
Section 11 Troubleshooting
190
Competent Persons Troubleshooting Guide
190
Sensor Calibration Charts
192
Limited Warranty Applied Systems
193
Temperature Conversion Chart
194

York Categories

Air Conditioner Heat Pump Chiller Furnace Air Handlers

More York Manuals

York MILLENNIUM YCAS 270 Manuals

York MILLENNIUM YCAS 270 Manual (196 pages)

Table of Contents

Related Products

York Categories