Emerson XJAL-020Z-CFV-012 Manual

AE5-1377 R3

TABLE OF CONTENTS

Safety Instructions ..................................................... 2
Safety Icon Explanation .......................................... 2
Instructions Pertaining to Risk of Electrical Shock,
Fire, or Injury to Persons .......................................... 3
Safety Statements................................................... 3
1. Introduction ......................................................... 4
2. Nomenclature/Features ...................................... 4
3. Understanding Actual vs. Standard Airflow .... 4
4. Performance Data ............................................... 4
5. Electrical / Physical Data ................................... 4
6. Generator Requirements ................................... 4
7. Physical Dimensions .......................................... 5
8. Installation / Piping Instructions ....................... 5
9. Condensing Unit Operational Control .............. 5
10. Control Features ............................................ 5
10.1. Fresh Start Program .................................... 5
10.2. Stop Program ............................................... 5
10.3. Automatic Liquid
temperature units only) ............................................. 5
10.4. Compressor Phase Reversal ....................... 5
10.5. Loss of Phase Protection ............................. 6
APPENDIXES
Appendix 1 - Electronic Defrost Control
Appendix 2 - Defrost Quickstart
TABLE OF FIGURES
Figure 1 - Nomenclature and Features ........................ 9
Figure 2 - Physical and Installation Requirements .... 10
Figure 3 - Power Board / Control Board .................... 11
Figure 4 - Defrost Control Module.............................. 12
Figure 5 - Communication Board ............................... 12
Figure 6 - Emerson Supplied Defrost (-002/-012 Models
Only) ........................................................................... 12
TABLES
Table 1 - Temperature Conversion Factors ................. 4
Table 2 - Altitude Conversion Factors (A2) .................. 4
Table 3 - Medium Temp Performance Criteria for R-
404A ........................................................................... 24
Table 4 - Low Temp Performance Criteria for R-404A
................................................................................... 24
Table 5 - Mechanical/Electrical Specifications ........... 25
Table 6 - Emerson Supplied Defrost Set Points ........ 25
Table 7 - Main Control Board Settings ....................... 26
Table 8 - Diagnostics Module Display ....................... 27
© 2017 Emerson Climate Technologies, Inc.
Copeland Scroll™ Outdoor Refrigeration Unit
Injection (Medium
10.6. Motor Current Overload ................................ 6
10.7. Non-Adjustable High Pressure Control ........ 6
10.8. Adjustable Low Pressure Switch .................. 6
10.9. Liquid Floodback Protection ......................... 6
10.10. Crankcase Heater ..................................... 6
10.11. Condenser Fan Speed Control ................. 6
10.12. Enhanced Vapor Injection (EVI) Control
(Low temperature units only) .................................... 6
11. Electronic Expansion Value (EXV) ................ 7
12. TXV selection .................................................. 7
13. Other Inputs to the Control Board ................ 7
13.1. Customer Supplied Control (Thermostat)..... 7
14. Other Outputs from the Control Board ........ 7
14.1. Defrost Control Board for Units Produced
Prior to Mid- 2013 ..................................................... 7
15. Updated Defrost Control Module .................. 8
16. Evaporator Fan Control ................................. 8
17. Diagnostic Display Board .............................. 8
Appendix 3 - XWeb Instructions
Appendix 4- E2 Instructions
Figure 7 - Quick Setup Guide for Electronic Low
Pressure Control ......................................................... 13
Figure 8 - Diagnostics Module Start Up Information .. 27
Table 9 - Refrigerant Liquid Temperature Valve
Capacity Multiplier Correction Factors ....................... 28
Table 10 - Pressure Control Settings for SJAL/M Units
.................................................................................... 28
Table 11 - System Diagnostic Information ................. 29
Table 12 - Sensor Information .................................... 33
1
June 2013