York YLAA0262HE Manuals

Manuals and User Guides for York YLAA0262HE. We have 1 York YLAA0262HE manual available for free PDF download: Installation Operation & Maintenance

York YLAA0262HE Installation Operation & Maintenance (186 pages)

AIR-COOLED SCROLL CHILLERS WITH BRAZED PLATE HEAT EXCHANGER STYLE B (50 HZ) 4-8 FAN

Brand: York | Category: Chiller | Size: 11 MB

Table of Contents
5
Section 1 - General Chiller Information and Safety
11
Introduction
11
Warranty
11
Handling
11
Safety and Quality
11
About this Manual
12
Misuse of Equipment
12
Section 2 - Product Description
15
Introduction
15
General System Description
15
Communications
17
Building Automation System Interface
17
Power Panel
17
Accessories and Options
17
FIGURE 1 - Unit Components (Front)
20
FIGURE 2 - Unit Components (Side)
21
FIGURE 3 - Power Panel Components
22
FIGURE 4 - Power Panel / Control Components
23
TABLE 1 - Complete Pin Number Description
24
FIGURE 5 - Process and Instrumentation Diagram
29
Section 3 - Handling and Storage
31
Delivery and Storage
31
Inspection
31
Moving the Chiller
31
Lifting Weights
32
Lifting Using Lugs
33
Lifting Using Shackles
33
FIGURE 6 - Unit Rigging/Lifting
34
Section 4 - Installation
35
Installation Checklist
35
Startup/Commissioning
35
Location and Clearances
35
Spring Isolators (Optional)
36
Compressor Mounting
36
Chilled Liquid Piping
36
Pipework Arrangement
37
Wiring
37
FIGURE 7 - Chilled Liquid System
37
Relief Valves
38
High Pressure Cutout
38
Single-Point Supply Connection - Terminal Block, Non-Fused Disconnect Switch, or Circuit Breaker
39
FIGURE 8 - Single-Point Supply Connection - Terminal Block, Non-Fused Disconnect Switch, or Circuit
39
FIGURE 9 - Control Wiring Inputs
40
FIGURE 10 - Thermal Dispersion Flow Switch
41
FIGURE 11 - Thermal Dispersion Flow Switch (Combine Together)
41
FIGURE 12 - Control Wiring Outputs
43
Section 5 - Technical Data
45
Operational Limitations
45
TABLE 2 - Temperatures and Flows
45
TABLE 3 - Ethylene and Propylene Glycol Correction Factors
47
Physical Data YLAA0180 - YLAA0517 50 Hz
48
TABLE 4 - Physical Data (English) - Standard Efficiency Units
48
TABLE 5 - Physical Data (English) - High Efficiency Units
49
Electrical Data
51
Compressor Heaters
51
TABLE 6 - Micropanel Power Supply
51
TABLE 7 - Voltage Range
51
TABLE 8 - Electrical Data Without Pumps
52
TABLE 9 - Pump Electrical Data (50 Hz)
53
TABLE 10 - Transformer Load
53
TABLE 11 - Wiring Lugs
54
Electrical Notes
55
FIGURE 13 - Elementary Wiring Diagram
60
FIGURE 14 - Elementary Wiring Diagram
62
FIGURE 15 - Fan Wiring, Standard Low Sound or Ultra Quiet, YLAA0180 - YLAA0517
64
FIGURE 16 - Fan Wiring, High Air Flow
66
FIGURE 17 - Single and Dual Point Wiring Options
68
FIGURE 18 - Pump Wiring
69
FIGURE 19 - Connection - EEV Option
70
FIGURE 20 - Compressor Wiring
72
FIGURE 21 - Power Options Connection Diagram
74
FIGURE 22 - Power Panel
76
FIGURE 23 - Micro Panel Connections
79
Weight Distribution and Isolator Mounting Positions
86
FIGURE 24 - Sample Printout Supplied in the Isolator Package and in the Chiller Panel Literature Packet
86
Clearances
87
FIGURE 25 - Unit Clearances - All Models
87
Four Fan Isolator Locations
88
Five and Six Fan Isolator Locations
88
Seven and Eight Fan Isolator Locations
89
Isolator Information
90
Section 6 - Commissioning
97
Preparation - Power off
97
FIGURE 26 - LED Indicator Buttons
99
FIGURE 27 - Flow Switch Set
100
FIGURE 28 - Flow below the Representation Range
100
FIGURE 29 - Flow Exceeds the Representation Range
100
Preparation - Power on
101
FIGURE 30 - EEV IB-G Interface Board
101
Section 7 - Unit Controls
105
Introduction
105
IPU II and I/O Boards
105
Transformer
106
Display
106
Keypad
106
Unit Switch
106
Battery Back-Up
106
Programming # of Compressors
106
Status Key
107
TABLE 12 - YLAA Fault and Inhibit Codes
112
TABLE 13 - Legend
112
FIGURE 31 - Status Key Messages Quick Reference List
113
Display/Print Keys
114
FIGURE 32 - Operation Data
117
Entry Keys
122
Set Points Keys
123
Schedule/Advance Day Key
124
TABLE 14 - Cooling Set Point, Programmable Limits, and Defaults
125
Program Key
126
TABLE 15 - Program Key Limits and Default
128
FIGURE 33 - Set Points Quick Reference List
129
TABLE 16 - Program Key Limits and Default
130
Unit Keys
132
FIGURE 34 - Unit Keys Options Programming Quick Reference List
139
Bacnet, Modbus, N2, and Yorktalk 2 Communications
140
FIGURE 35 - Micro Panel Connections
141
TABLE 17 - Minimum, Maximum and Default Values
141
TABLE 18 - Values Required for BAS Communication
142
TABLE 19 - Real Time Error Numbers
143
TABLE 20 - Native Bacnet, Modbus, and N2 Communications Data Map
144
TABLE 21 - Yorktalk 2 Communications Data Map
148
Section 8 - Unit Operation
155
Capacity Control
155
Suction Pressure Limit Controls
156
Discharge Pressure Limit Controls
156
Leaving Chilled Liquid Control
156
FIGURE 36 - Leaving Water Temperature Control Example
156
Leaving Chilled Liquid Control Override to Reduce Cycling
157
FIGURE 37 - Set Point Adjust
157
TABLE 22 - Sample Compressor Staging for Return Water Control
157
TABLE 23 - Return Chilled Liquid Control for 4 Compressors (6 Steps)
157
Leaving Chilled Liquid System Lead/Lag and Compressor Sequencing
158
Return Chilled Liquid Control
158
TABLE 24 - Lead/Lag Return Chilled Liquid Control for 4 Compressors (6 Steps)
158
Return Chilled Liquid System Lead/Lag and Compressor Sequencing
159
Anti-Recycle Timer
159
Anti-Coincidence Timer
160
Evaporator Pump Control and York Hydro Kit Pump Control
160
Evaporator Heater Control
160
Pumpdown Control
160
Standard Condenser Fan Control
160
VSD Fan
161
Changing the Switch Point of the Thermal Dispersion Flow Switch
161
FIGURE 38 - Condenser Fan Locations
161
TABLE 25 - YLAA Standard Condenser Fan Control Using Discharge Pressure Only (2, 3, or 4 Fans Per System)
162
TABLE 26 - YLAA Standard Condenser Fan Control Using Discharge Pressure Only
163
Load Limiting
164
Compressor Run Status
164
Alarm Status
164
TABLE 27 - Compressor Operation Load Limiting
164
Remote BAS/EMS Temperature Reset Using a Voltage or Current Signal
165
Section 9 - Service and Troubleshooting
167
Clearing History Buffers
167
Service Mode
167
Service Mode - Outputs
167
Service Mode - Chiller Configuration
168
Service Mode - Analog and Digital Inputs
168
Control Inputs/Outputs
169
TABLE 28 - I/O Digital Inputs
169
TABLE 29 - I/O Digital Outputs
169
TABLE 30 - I/O Analog Inputs
169
TABLE 31 - I/O Analog Outputs
169
FIGURE 39 - Microboard Layout
170
Checking Inputs and Outputs
171
TABLE 32 - Outdoor Air Sensor Temperature/Voltage/Correlation
171
TABLE 33 - Entering/Leaving Chilled Liquid Temp. Sensor, Temperature/Voltage Correlation
172
TABLE 34 - Pressure Transducers
173
FIGURE 40 - I/O Board Relay Contact Architecture
174
TABLE 35 - Data Logging to Flash
175
Optional Printer Installation
177
FIGURE 41 - Printer to Microboard Electrical Connections
178
Troubleshooting
179
TABLE 36 - Troubleshooting
179
Section 10 - Maintenance
181
Compressors
181
Condenser Fan Motors
181
Condenser MCHX Cleaning
181
Operating Parameters
182
On-Board Battery Back-Up
182
Thermal Dispersion Flow Switch
182
Brazed Plate Heat Exchanger (Evaporator) Heater
182
Overall Unit Inspection
182
Temperature
185
TABLE 37 - si Metric Conversion
185

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York YLAA0262HE Installation Operation & Maintenance (186 pages)

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