Specifications

Table of Contents, cont’d

4.0 INSTALLATION OF REMOTE HEAT EXCHANGER ......................................... 18

4.1 Rigging ................................................................................................................ 18

4.2 Leg Assembly ...................................................................................................... 18

4.3 Locating the Remote Heat Exchanger ................................................................ 18

4.4 Electrical Service ................................................................................................. 19

4.5 Air Cooled Condensers - Model DARC ............................................................... 19

4.5.1 Fan Speed Control .............................................................................................. 19

4.5.2 Ambient Thermostats .......................................................................................... 19

4.6 Fluid Coolers - Model DAFC ............................................................................... 20

4.6.1 Fluid-Sensing Thermostats ................................................................................. 20

4.6.2 Energy Saver Cooling ......................................................................................... 20

5.0 CHARGING ........................................................................................................ 21

5.1 Voltage Phase Check .......................................................................................... 21

5.1.1 Evaporator ........................................................................................................... 21

5.1.2 Secondary Heat Exchanger ................................................................................ 21

5.2 Important Refrigeration Components .................................................................. 21

5.2.1 Expansion Valve .................................................................................................. 21

5.2.2 High Pressure Cutout Switch .............................................................................. 21

5.2.3 Low Pressure Cutout Switch ............................................................................... 22

5.3 Air Cooled Systems ............................................................................................. 22

5.3.1 Fan Speed Control System Charging.................................................................. 22

5.3.2 Flooded System Charging ................................................................................... 23

5.4 Water/Glycol Cooled Systems ............................................................................. 24

5.4.1 Water/Glycol Cooled Systems Charging ............................................................. 24

5.5 Refrigerant Handling ........................................................................................... 24

6.0 GLYCOL SYSTEMS ........................................................................................... 25

6.1 Glycol Concentration ........................................................................................... 25

6.2 Internal (Fluid) Volume - Downﬂ ow Models ......................................................... 25

6.3 Internal (Fluid) Volume - Upﬂ ow Models ............................................................. 25

6.4 Fluid Cooler Internal Volume ............................................................................... 26

6.5 Copper Piping Internal Volume............................................................................ 26

6.6 Freezing Point of Aqueous Solutions .................................................................. 26

7.0 CONTROLS ....................................................................................................... 27

7.1 DAP

III Microprocessor Control Panel ............................................................... 27

7.2 Secondary Heat Exchangers............................................................................... 27

7.3 Wiring Diagrams .................................................................................................. 27