Control Wiring Connections (Ch531/Adaptiview Model Afdh Only) - Trane CVHE Installation Manual

Retrofit air-cooled adaptive frequency drive

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Installation

Control wiring connections (CH531/AdaptiView model AFDH only)

Figure 32. CH531 wiring connections to 2X1 terminal strip in AFDH control box

1. Factory installed wiring

2. Field installed wiring

3. Note: actual wire designators may vary depending upon the specific model/version of chiller control

that the AFDH drive is being linked with. Please refer to the original chiller control wiring diagrams and

the wire descriptions listed in Figure Callouts 4 - 11 if an actual wire designator does not match the one

shown in this graphic

4. 115 VAC feed to chiller control panel

5. Neutral feed to chiller control panel

6. 115 VAC feed from breaker 1Q1 in the chiller control panel

7. Normally Closed terminal(2) on HPC (High Pressure Cutout) switch (2S1)

8. From 1A7 J2-4 oil pump LLID

9. From 1A7 J2-2 oil LLID or could come from the 1X1 terminal block

10 & 11. From IPC communication buss link

Important: Do not forget to install the condenser pressure transducer provided in the CH531/

AdaptiView Miscellaneous Hardware Package. The accurate pressure readings

required by the chiller controls to enable the most efficient operation of the chiller

with the retrofitted AFDH drive can only be effectively measured with a pressure

transducer.

AFDH-SVN01A-EN

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Cvhf Afdh