Index
General Information ............................................................................................................................................................ 6
Receiving the machine ..................................................................................................................................................... 6
Checks .............................................................................................................................................................................. 6
Purpose of this Manual ..................................................................................................................................................... 6
Nomenclature ................................................................................................................................................................... 7
Operating limits ................................................................................................................................................................. 17
Storing ............................................................................................................................................................................ 17
Operation ........................................................................................................................................................................ 17
Mechanical Installation ..................................................................................................................................................... 19
Shipping .......................................................................................................................................................................... 19
Responsibility ................................................................................................................................................................. 19
Safety.............................................................................................................................................................................. 19
Moving and lifting............................................................................................................................................................ 20
Positioning and assembly ............................................................................................................................................... 20
Minimum space requirements ........................................................................................................................................ 21
Sound protection ............................................................................................................................................................ 22
Water piping.................................................................................................................................................................... 22
Water treatment ....................................................................................................................................................... 23
Evaporator and recovery exchangers anti-freeze protection ................................................................................... 24
Installing the flow switch .......................................................................................................................................... 24
Hydronic kit (optional) .............................................................................................................................................. 25
Refrigerating circuit safety valves ................................................................................................................................... 28
Guidelines forERAD E- Installation ................................................................................................................................. 30
Refrigerant piping design................................................................................................................................................ 30
Expansion valve ............................................................................................................................................................. 31
Refrigerant Chargie ........................................................................................................................................................ 31
Installation of evaporator fluid sensors ........................................................................................................................... 32
Electrical installation ........................................................................................................................................................ 33
General specifications .................................................................................................................................................... 33
Electrical components .................................................................................................................................................... 38
Power circuit wiring......................................................................................................................................................... 38
Electrical heaters ............................................................................................................................................................ 40
Electrical power supply to the pumps ............................................................................................................................. 40
Water pump control ........................................................................................................................................................ 41
Unit On/ Off remote control – Electrical wiring ............................................................................................................... 41
Double Setpoint – Electrical wiring ................................................................................................................................. 41
External water Setpoint reset – Electrical wiring (Optional) ........................................................................................... 41
Unit limitation – Electrical wiring (Optional) .................................................................................................................... 42
Operation............................................................................................................................................................................ 44
Operator’s responsibilities .............................................................................................................................................. 44
Description of the machine ............................................................................................................................................. 44
Description of the chilling cycle ...................................................................................................................................... 44
EWAD E-SS/SL ....................................................................................................................................................... 44
ERAD E-SS/SL ........................................................................................................................................................ 48
Description of the chilling cycle with heat recovery ........................................................................................................ 50
Controlling the partial recovery circuit and installation recommendations............................................................... 50
Compressor .................................................................................................................................................................... 55
Compression process ..................................................................................................................................................... 55
Cooling capacity control ................................................................................................................................................. 57
Pre-startup checks ............................................................................................................................................................ 58
Units with an external water pump ................................................................................................................................. 59
Units with a built-in water pump ..................................................................................................................................... 59
Electrical power supply ................................................................................................................................................... 59
Unbalance in power supply voltage................................................................................................................................ 59
Electrical heater power supply ....................................................................................................................................... 60
Startup procedure ............................................................................................................................................................. 61
Turning on the machine .................................................................................................................................................. 61
Seasonal shutdown ........................................................................................................................................................ 62
Starting up after seasonal shutdown .............................................................................................................................. 62
System maintenance......................................................................................................................................................... 63
General ........................................................................................................................................................................... 63
Compressor maintenance .............................................................................................................................................. 63
Lubrication ...................................................................................................................................................................... 64
Routine maintenance...................................................................................................................................................... 65
Dehydration filter replacement ....................................................................................................................................... 65
Dehydration filter cartridge replacement procedure ....................................................................................................... 65
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