Carrier Acqua Junior 30AJ Series Installation, Operation And Maintenance Manual page 52

52
Installation, Operation and Maintenance Manual
Acqua Junior 30AJ
Air Condensed Liquid Chillers
Nominal Capacity: 4 to 10 TR - 60 Hz
1. Nomenclature ................................................................... 53
2. General techniques characteristics and physical
data - 60Hz ...................................................................... 54
3. Safety ............................................................................... 55
4. Transportation................................................................... 55
5. Installation
5.1 Receiving and inspecting the unit .............................. 55
5.2 Unit Dimensions ......................................................... 56
5.3 Cold water piping/connections ................................... 57
5.4 Filters ......................................................................... 57
5.5 Electric connections ................................................... 57
5.6 Electric Data ............................................................. 58
5.7 Performance Data ...................................................... 59
6. Control specifi cations
6.1 Logic control unit ........................................................ 60
6.2 Control board diagram ............................................... 60
6.3 Description of terminals ............................................ 60
6.4 Control front buttons and indicators ........................... 60
6.5 Suggested electric connection ................................... 61
7. Operation
7.1 First check ................................................................ 61
7.2 Sequence of operation and control ........................... 62
7.3 General Care ............................................................ 64
7.4 Refrigerant charge .................................................... 64
7.5 Pressure drop in the plate exchanger ....................... 65
7.6 Electrical circuit ......................................................... 66
8. Maintenance
8.1 Electric Box .............................................................. 70
8.2 Eventual Failures ..................................................... 70
8.3 Sub-cooling and overheating calculation ................. 73
9. Considerations on the exchangers care ........................... 74
10. Start-up report ................................................................. 74
Convertion Table R-407C ..................................................... 75
INDEX