44 EN/01.2019/G22 © STULZ GmbH – all rights reserved
EC TOWER TECHNICAL MANUAL
Contents
1. Information on this document ...............................................................................................7
1.1 Scope
.................................................................................................................................................................... 7
1.2 Presentation conventions
.............................................................................................................................. 7
2. Safety
.......................................................................................................................................7
2.1 Safety instructions
............................................................................................................................................ 7
2.2 Handling refrigerants
....................................................................................................................................... 8
2.3 Duties of the operator
...................................................................................................................................... 8
2.4 Other applicable documents
......................................................................................................................... 9
3. Residual risks
........................................................................................................................10
4. Transport / Storage
..............................................................................................................12
4.1 Delivery of units
.............................................................................................................................................. 12
4.2 Transport
........................................................................................................................................................... 12
4.3 Storage
.............................................................................................................................................................. 13
5. Description
............................................................................................................................14
5.1 Type code
.......................................................................................................................................................... 14
5.2 Proper use
........................................................................................................................................................ 15
5.3 Improper use
.................................................................................................................................................... 15
5.4 EC Tower method of operation
.................................................................................................................. 16
5.5 EC Tower sizes and versions
....................................................................................................................... 20
5.5.1 Sizes
......................................................................................................................................................... 20
5.5.2 Unit versions
.......................................................................................................................................... 20
5.6 Heater method of operation
....................................................................................................................... 21
6. Technical data
.......................................................................................................................22
6.1 Application limits
............................................................................................................................................ 22
6.2 EC Tower Technical Data
............................................................................................................................. 24
6.3 Electrical data and circuit diagram of EC Tower................................................................................... 27
6.4 Dimensional drawings
.................................................................................................................................. 28
6.5 Operating and connection data of EC Tower
....................................................................................... 29
6.5.1 ECU/D 091 size 1 - Version 07
..................................................................................................... 29
6.5.2 ECU/D 181 size 2 - Version 07
..................................................................................................... 31
6.5.3 ECU/D 251 size 2 - Version 07
..................................................................................................... 33
7. Installing the EC Tower
.........................................................................................................35
7.1 Setting up
.......................................................................................................................................................... 35
7.2 Opening the EC Tower
.................................................................................................................................. 36
7.3 Connecting the pipes
.................................................................................................................................... 38
7.3.1 Location of refrigerant connections
.............................................................................................. 38
7.4 Installing the drain
.......................................................................................................................................... 42
7.4.1 Types of installation
............................................................................................................................. 42
7.5 Installing the refrigerant circuit
.................................................................................................................. 46
7.6 Establishing the conductivity of the feed water
................................................................................... 47
7.7 Connecting the steam humidifier to the feed water............................................................................ 48
7.7.1 On-site preparations........................................................................................................................... 48
7.7.2 Connecting the Downflow unit to the feed water
...................................................................... 48
Subject to technical modifications.