D-EIMWC00208-16EN - 4/48
Contents
General information ............................................................................................................................................................ 6
Warnings for the operator ................................................................................................................................................... 6
Assistance .......................................................................................................................................................................... 6
Spare parts ......................................................................................................................................................................... 6
Receiving the machine ....................................................................................................................................................... 6
Checks ................................................................................................................................................................................ 6
Purpose of this manual ....................................................................................................................................................... 7
Important information on the refrigerant used .................................................................................................................... 7
Mechanical Installation ....................................................................................................................................................... 8
Shipping .............................................................................................................................................................................. 8
Responsibility ..................................................................................................................................................................... 8
Safety.................................................................................................................................................................................. 8
Moving and lifting................................................................................................................................................................ 8
Positioning and assembly ................................................................................................................................................... 9
Minimum space requirements .......................................................................................................................................... 10
Ventilation ......................................................................................................................................................................... 10
Sound protection .............................................................................................................................................................. 10
Water piping...................................................................................................................................................................... 10
Water treatment ................................................................................................................................................................ 11
Evaporator and exchangers antifreeze protection ........................................................................................................... 12
Installing the flow switch ................................................................................................................................................... 12
Guidelines for remote condenser application ................................................................................................................ 13
Refrigerant piping design.................................................................................................................................................. 13
Electrical Installation ........................................................................................................................................................ 17
General specifications ...................................................................................................................................................... 17
Electrical components ...................................................................................................................................................... 18
Electrical wiring ................................................................................................................................................................. 18
Electrical heaters .............................................................................................................................................................. 18
Water pump control .......................................................................................................................................................... 18
Unit On/Off remote control
– Electrical wiring .................................................................................................................. 18
Double Setpoint
– Electrical wiring ................................................................................................................................... 18
External water Setpoint reset
– Electrical wiring (Optional) ............................................................................................. 18
Unit limitation Electrical wiring (Optional) ........................................................................................................................ 19
Operation............................................................................................................................................................................ 20
Operator’s responsibilities ................................................................................................................................................ 20
Description of the machine ............................................................................................................................................... 20
Description of the refrigeration cycle ................................................................................................................................ 20
Description of the refrigeration cycle with partial heat recovery ....................................................................................... 24
Controlling the partial recovery circuit and installation recommendations ....................................................................... 24
Compression process ....................................................................................................................................................... 25
Prestartup checks ............................................................................................................................................................. 29
General ............................................................................................................................................................................. 29
Units with external water pump ........................................................................................................................................ 30
Electrical power supply ..................................................................................................................................................... 30
Unbalance in power supply voltage.................................................................................................................................. 30
Electrical heaters power supply ........................................................................................................................................ 30
Emergency Stop ............................................................................................................................................................... 30
Startup procedure ............................................................................................................................................................. 31
Turning on the machine .................................................................................................................................................... 31
Seasonal shutdown .......................................................................................................................................................... 32
Starting up after seasonal shutdown ................................................................................................................................ 32
System maintenance......................................................................................................................................................... 33
General ............................................................................................................................................................................. 33
Compressor maintenance ................................................................................................................................................ 33
Lubrication ........................................................................................................................................................................ 33
Routine maintenance........................................................................................................................................................ 34
Replacement of filter dryer ............................................................................................................................................... 35
Procedure to replace the filter dryer cartridge .................................................................................................................. 35
Replacement of the oil filter .............................................................................................................................................. 36
Refrigerant charge ............................................................................................................................................................ 37
Procedure to replenish refrigerant .................................................................................................................................... 37
Standard Checks ............................................................................................................................................................... 38
Temperature and pressure sensors ................................................................................................................................. 38
Test sheet ........................................................................................................................................................................... 39
Water side measurements................................................................................................................................................ 39
Refrigerant side measurements ....................................................................................................................................... 39
Summary of Contents for EWLD160~550G-SS
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