| Document type | Service Information Letter |
|---|---|
| Document number | SI0148 |
| Equipment | YK Centrifugal Chiller |
| Brand | YORK |
| File size | 0.2 MB |
Fault codes in this document
Cycling Shutdowns (apply to 575V/60Hz VSD)
| Code / display | Meaning | Cause | Action | Page |
|---|---|---|---|---|
| VSD-PRECHARGE-LOW DC BUS VOLTAGE | The DC Link voltage does not reach at least 60VDC (within 4 seconds) or at least 600VDC (within 20 seconds) after the precharge command has been received. | This shutdown is performed. | 1 | |
| VSD—PRECHARGE-DC BUS VOLTAGE IMBALANCE | The Half DC Link voltage does not remain within +106VDC of the DC Link Voltage divided by 2 during the precharge interval. | This shutdown is performed. | 1 | |
| VSD-LOW DC BUS VOLTAGE | The DC Link Voltage falls below 600VDC while running. | This shutdown is performed. | 1 | |
| VSD-DC BUS VOLTAGE IMBALANCE | The Half DC Link Voltage does not remain within +106VDC of the DC Link Voltage divided by 2 while running. | This shutdown is performed. | 1 | |
| VSD-HARMONIC FILTER-PRECHARGE-LOW DC BUS VOLTAGE | The DC Link voltage does not reach at least 60VDC (within 100 milliseconds) or at least 630VDC (within 5 seconds) after the filter precharge command has been received. | This shutdown is performed. | 1 | |
| VSD-HARMONIC FILTER-DC BUS VOLTAGE IMBALANCE | The Half DC Link Voltage does not remain within +63VDC of the DC Link Voltage divided by 2. | This shutdown is performed. | 1 |
Safety Shutdowns (apply to 575V/60Hz VSD)
| Code / display | Meaning | Cause | Action | Page |
|---|---|---|---|---|
| VSD-HARMONIC FILTER-HIGH BASEPLATE TEMPERATURE | The Baseplate temperature rises above the following limits: 424HP – 70.0°F, 174.2°C 608HP – 88.0°F, 190.4°C | This shutdown is performed. | 2 |
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Manufacturer document, published here as reference material for equipment we supply. The original lives at docs.johnsoncontrols.com. The rights holder may ask us to take it down — we will.