The McQuayF4 interface links McQuay International's Frame 4 chillers, fitted with Carel controllers, to North's Extensible Object Model.
A Frame 4 chiller has up to four compressors, each fitted with its own Carel pCO controller. The controller attached to compressor 1 should be fitted with an RS485 card.
The interface can communicate with up to 32 chillers/controllers. From each chiller the interface can read and adjust values, and monitor each for alarm and fault conditions generating an alarm message where appropriate.
McQuay Frame 4 Chillers
The McQuayF4 interface is available on the following North platforms:
| CP/MCQUAYF4/MRTC485 | Compass Point with McQuay Frame4 interface |
| CMDR/MCQUAYF4 | Commander with McQuay Frame4 interface1 |
| OSM/MCQUAYF4 | OSM available with all ObSys editions1 |
Notes 1 Requires a RS485/232 converter for the interface.
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