Table Of Contents - Daikin EWLQ025KCW1N Installation, Operation And Maintenance Manual

Index
1. INTRODUCTION .................................................................................................................................... 4
1.1 Options and features (1)............................................................................................................... 5
1.2 Features ........................................................................................................................................ 5
2 OPERATION RANGE ............................................................................................................................ 6
3 SELECTION OF LOCATION ................................................................................................................. 7
4 MAIN COMPONENTS............................................................................................................................ 7
5 INSPECTING AND HANDLING THE UNIT ............................................................................................ 7
6 UNPACKING AND PLACING THE UNIT ............................................................................................... 7
7 IMPORTANT INFORMATION REGARDING THE REFRIGERANT USED ............................................ 7
8 SELECTION OF PIPING MATERIAL ..................................................................................................... 9
9 CONNECTING THE REFRIGERANT CIRCUIT ................................................................................... 10
9.1 Precautions when handling piping ............................................................................................ 10
9.2 Connecting the refrigerant circuit ............................................................................................. 10
9.3 Leak test and vacuum drying .................................................................................................... 12
9.4 Open the discharge- and liquid stop valves. ............................................................................ 12
9.5 Next perform a fine-tuning ......................................................................................................... 12
10 CHECKING THE WATER CIRCUIT ..................................................................................................... 14
10.1 Connecting the water circuit ...................................................................................................... 15
10.2 Water charge, flow and quality .................................................................................................. 16
10.3 Water piping insulation .............................................................................................................. 16
10.4 Refrigerant piping insulation ..................................................................................................... 16
10.5 Antifreeze protection for BPHE and recovery exchangers ...................................................... 16
11 FIELD WIRING..................................................................................................................................... 17
11.1 Point for attention regarding quality of the public electric power supply .............................. 17
OPERATOR'S REPONSIBILITIES ...................................................................................................... 18
12
13 MAINTENANCE ................................................................................................................................... 19
13.1 Routine maintenance ................................................................................................................. 19
13.2 Electrical Installation .................................................................................................................. 19
13.3 Service and limited warranty ..................................................................................................... 20
14 BEFORE STARTING ........................................................................................................................... 23
List of tables
Table 1-Technical specifications
Table 2-Electrical specifications
Table 3- Flare nut spaces dimensions and appropriate tightening torque ................................................... 11
Table 4-Charging the unit ........................................................................................................................................... 12
Table 5- Water quality specification ......................................................................................................................... 15
Table 6-Water flow operation range.......................................................................................................................... 16
Table 7-Zmax (Ω) ............................................................................................................................................................ 17
Table 8-R410A Pressure / temperature table ....................................................................................................... 19
Table 9- Standard Routine Maintenance Plan.......................................................................................................... 20
Table 10- Routine Maintenance Plan for Critical Application and/or Highly Aggressive Environment 21
Table 11-Pre-commissioning checklist ................................................................................................................... 23
List of figures
Figure 1- Operation range EWLQ014-033KC ............................................................................................................. 6
Figure 2-EWLQ049-064KC .............................................................................................................................................. 6
Figure 3-Connecting the refrigerant circuit (1) ...................................................................................................... 10
Figure 4-Connecting the refrigerant circuit (2) ...................................................................................................... 10
Figure 5-Connecting the refrigerant circuit (3) ...................................................................................................... 11
Figure 6- Connecting the refrigerant circuit (4) ..................................................................................................... 11
Figure 7- Charging the unit ......................................................................................................................................... 12
Figure 8- Water piping evaporator-plastic bag 1 .................................................................................................. 14
Figure 9-Water piping condenser-plastic bag (2) ................................................................................................. 14
Figure 10-Flowswitch installation ............................................................................................................................. 15
Figure 11- EWLQ 014 - 033 KCW1N Refrigerant circuit scheme .................................................................... 22
Figure 12- EWLQ 049 - 064 KCW1N Refrigerant circuit scheme .................................................................... 22
D-EIMHP01601-22_01EN 2/26
(1)
............................................................................................................................. 4
(1)
.............................................................................................................................. 4