Rittal LCU DX
3
Contents
EN
Contents
1
Notes on documentation .................. 4
1.1
CE label ........................................................ 4
1.2
Information on electromagnetic compatibility . 4
1.3
Storing the documents .................................. 4
1.4
Symbols in these operating instructions ........ 4
1.5
Associated documents ................................. 4
1.6
Normative instructions .................................. 4
1.6.1 Legal information concerning the operating
instructions ........................................................... 4
1.6.2 Copyright ............................................................. 4
1.6.3 Revision ................................................................ 4
2
Safety instructions ............................ 5
2.1
Important safety instructions: ........................ 5
2.2
Service and technical staff ............................ 6
2.2.1 Personal safety equipment ................................... 6
2.3
Operator requirements .................................. 6
2.3.1 Abbreviated instructions ....................................... 6
2.3.2 System log ........................................................... 6
2.3.3 F-gas regulation ................................................... 7
2.3.4 Chemicals – Climate Protection Ordinance ........... 7
2.4
RoHS compliance ......................................... 7
3
Device description ............................ 8
3.1
General functional description ....................... 8
3.2
Air routing ..................................................... 8
3.3
Device assembly ........................................... 8
3.3.1 Internal unit (evaporator coil) ................................. 8
3.3.2 External unit (inverter-controlled cooling unit) ........ 9
3.3.3 Refrigerant lines and electrical pilot wires .............. 9
3.4
Proper and improper usage .......................... 9
3.5
Scope of supply for the LCU DX ................. 10
4
Transport and handling .................. 11
4.1
Transport .................................................... 11
4.2
Unpacking .................................................. 11
5
Assembly and siting ....................... 12
5.1
General ....................................................... 12
5.1.1 Siting location requirements ................................ 12
5.1.2 Relative positioning of the internal unit to the
external unit ........................................................ 12
5.1.3 Supply connections required at the installation
site ..................................................................... 12
5.1.4 Electromagnetic interference .............................. 12
5.2
Assembly procedure ................................... 12
5.2.1 Preparatory tasks ............................................... 12
5.2.2 Mounting the internal unit ................................... 13
5.2.3 Mounting the internal unit accessories ................ 13
5.2.4 Mounting the external unit .................................. 14
6
Installation ...................................... 16
6.1
General information ..................................... 16
6.2
Notes on pipework ...................................... 16
6.3
Connecting the condensate discharge ........ 18
6.4
Electrical connection ................................... 18
6.4.1 General .............................................................. 18
6.4.2 Connecting the external unit ............................... 19
6.4.3 Connecting the internal unit ................................ 19
6.5
Checking the entire system prior to
commissioning ........................................... 19
6.6
Installing the server .................................... 20
7
Operation ....................................... 22
7.1
Control and display devices ....................... 22
7.2
Switching the LCU DX on and off ............... 22
7.2.1 Switching on the internal and external units ........ 22
7.2.2 Switching off the internal and external units ........ 22
7.2.3 Switching off in an emergency ............................ 22
7.3
Setting the setpoint temperature ................ 22
8
Troubleshooting ............................. 24
8.1
General ...................................................... 24
8.2
List of error messages ................................ 24
9
Inspection and maintenance ........... 25
10
Storage and disposal ...................... 26
11
Technical specifications .................. 27
11.1 LCU DX 3 kW ............................................. 27
11.2 LCU DX 6.5kW ........................................... 28
11.3 Information about the refrigerant ................ 29
11.4 Cooling output ........................................... 29
11.4.1 LCU DX 3 kW ..................................................... 30
11.4.2 LCU DX 6.5 kW .................................................. 31
11.5 Overview drawings ..................................... 32
11.5.1 Internal unit LCU DX 3 kW and 6.5 kW ............... 32
11.5.2 Dimensions of internal unit LCU DX 3 kW and
6.5 kW ............................................................... 33
11.6 RI flow chart LCU DX ................................. 34
11.7 Circuit diagram ........................................... 35
11.7.1 Functional diagram, internal unit ......................... 35
11.7.2 Connection internal unit – external unit, external
interfaces ........................................................... 36
11.7.3 Circuit diagram, external unit .............................. 37
12
Spare parts .................................... 38
13
Accessories .................................... 39
14
Glossary ......................................... 40
15
Customer service addresses .......... 41
