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ICE CFA1120A-3360A & CGA3180A I&O Manual 03/2021 Rev.5
Table of Contents
Chapter 5 Troubleshooting
5.1 Overview ................................................................................................................................................33
5.2 Failure Symptoms Guide ........................................................................................................................34
5.3 Compressor Troubleshooting .................................................................................................................34
5.4 Control Board Diagnosis ........................................................................................................................35
Chapter 6 Maintenance
6.1 Scheduled Maintenance .........................................................................................................................36
Chapter 7 Warranty
7.1 Limited Product Warranty ......................................................................................................................37
Chapter 8 Start-Up Check List
8.1 Start-Up Check List ................................................................................................................................38
Appendix A
Fresh Air Damper Installation ..........................................................................................................................42
Appendix B
CFA1120A/1150A/3150A/3180A/3240A Reverse Flow w/Economizer Exhaust Hood Installation .............43
Illustrations
Figure 1a. Typical Electrical Schematics for Single Compressor Units ....................................................10
Figure 1b. Typical Electrical Schematics for Dual Compressor Units .......................................................11
Figure 2a. Setting the Speed for the Y1 and Y2 Operation for Indoor Motor ...........................................14
Figure 2b. Second Stage Cooling Speed ....................................................................................................14
Figure 3.
Output Termination for Indoor Motor Control Signal ..............................................................15
Figure 4.
Outdoor Motor Speed Setting ...................................................................................................15
Figure 5.
Output Termination for Outdoor Motor Control Signal ............................................................15
Figure 6.
Communications SetUp ............................................................................................................16
Figure 7.
Top Flange and Lifting Bracket Installation .............................................................................27
Figure 8.
Wall Mounting Detail ................................................................................................................28
Figure 9.
Thermostat Connection Diagram ..............................................................................................31
Tables
Table 1 Cooling Performance and Air Flow ............................................................................................ 7
Table 2 Filter Sizes/Part Numbers ........................................................................................................... 7
Table 3 Shipping Weights & Dimensions ................................................................................................ 7
Table 4 Refrigerant Charge ...................................................................................................................... 7
Table 5 MODBUS Network Address DIP Swith Positions ................................................................... 17
Table 6a. MODBUS Discrete Registers ................................................................................................... 21
Table 6b. MODBUS Registers.................................................................................................................. 22
Table 7 Minimum Clearances ................................................................................................................ 24
Table 8 Voltage Limitations ................................................................................................................... 24
