Emerson Copeland OMTE-76D Application Manuallines page 3

2.11.7 Fast access menu ...................................................................................19
2.12 Controller keyboard ...........................................................................................19
2.12.1 How to lock the keyboard..........................................................................19
2.12.2 How to unlock the keyboard ......................................................................19
2.13 Parameters level 1 - Required settings .................................................................20
2.14 Digital operation ................................................................................................20
2.15 Rescue mode (emergency mode) ........................................................................21
2.15.1 Functionality ...........................................................................................21
2.15.2 PS1 - Setpoint adjustment of low-pressure switch in rescue mode..................22
2.15.3 Fan operation in rescue mode ...................................................................22
2.16 Heat recovery mode - Optional ...........................................................................23
2.17 Pumpdown .......................................................................................................23
2.18 Reset to factory settings - Emerson "Hot Key" .......................................................24
2.18.1 How to save factory settings or user settings ...............................................24
2.18.2 Applicable hot key for LOCU units with XCM25D controller ............................24
2.18.3 Location of the "Hot Key" plug connection on the XCM25D controller ..............24
2.18.4 How to program a "Hot Key" from the controller (upload) ...............................24
2.18.5 How to program the controller using an Emerson "Hot Key" (download) ...........24
2.19 Troubleshooting - Alarm history...........................................................................25
2.20 Compressor motor protection ..............................................................................25
2.21 System pressure protection.................................................................................25
2.21.1 High-pressure safety switch ......................................................................25
2.21.2 Low-pressure safety switch .......................................................................25
2.22 Other inputs of the XCM25D controller..................................................................25
2.22.1 Heat recovery mode ................................................................................25
2.22.2 Ambient temperature sensor .....................................................................26
2.22.3 Refrigerant level control - Leak detection device ..........................................26
2.22.4 Fan failure - Fan feedback .......................................................................26
2.23 Alarm output (DO5) of the XCM25D controller........................................................26
3 Installation..................................................................................................... 27
3.1 Ref rigeration unit handling ..................................................................................27
3.1.1 Transport and storage ..............................................................................27
3.1.2 Weights .................................................................................................27
3.1.3 Lifting ....................................................................................................27
3.2 Ref rigeration piping connections ..........................................................................28
3.2.1 Refrigeration piping installation ..................................................................28
3.2.2 Connection sizes .....................................................................................29
3.2.3 Brazing recommendations ........................................................................30
3.2.4 Brazing procedure ...................................................................................31
3.3 Electrical connection ..........................................................................................31
3.3.1 Power supply connections ........................................................................31
AGL_Unit_LOCU_EN_Rev00