Stulz EC Tower ECD 91 - Page 5

55 © STULZ GmbH – all rights reserved EN/01.2019/G22
EC TOWER TECHNICAL MANUAL
7.7.3 Connecting the Upflow unit to the feed water ............................................................................ 50
7.8 Electrically connecting the EC Tower
...................................................................................................... 52
7.8.1 Circuit diagram
..................................................................................................................................... 53
7.8.2 Electrical wiring diagram
................................................................................................................... 53
7.8.3 Electrically connecting the EC Tower to junction box 1
.......................................................... 54
7.9 Connecting the outdoor unit to the EC Tower
....................................................................................... 55
7.9.1 Connecting the outdoor unit electrical supply to junction box 1
......................................... 55
7.9.2 Connecting the outdoor unit signal lines in junction box 2
.................................................... 56
7.10 Setting the DIP switches of the printed circuit boards in junction box 2
.................................. 57
8. Starting up the EC Tower
......................................................................................................59
9. EC Tower maintenance
.........................................................................................................63
9.1 Safety instructions
......................................................................................................................................... 63
9.2 Maintenance intervals
.................................................................................................................................. 64
9.3 Air circuit maintenance
................................................................................................................................. 64
9.3.1Replacing the filter of Upflow units
................................................................................................ 65
9.3.2Replacing the filter of Downflow units
.......................................................................................... 66
9.3.3Replacing the filter in the filtration box in Downflow units
..................................................... 69
9.4 Unit in general
................................................................................................................................................. 70
9.5 Heater maintenance
...................................................................................................................................... 70
9.6Steam humidifier maintenance
.................................................................................................................. 70
9.7 Replacing the solenoid valve coil of the optional water warningsystem
..................................... 70
10. Troubleshooting
..................................................................................................................71
10.1 Troubleshooting the EC Tower
................................................................................................................ 71
10.2 Troubleshooting the heater
...................................................................................................................... 72
10.3 Troubleshooting the steam humidifier
.................................................................................................. 72
10.4 Troubleshooting the optional water warning system
....................................................................... 72
11. Dismantling and disposing of the EC Tower .....................................................................73
12. Spare parts
..........................................................................................................................74
13. Options
................................................................................................................................75
13.1 Overview
......................................................................................................................................................... 75
13.2Installing the condensate pump
............................................................................................................. 78
13.2.1 Safety instructions
............................................................................................................................ 78
13.2.2 Checking the product package
.................................................................................................... 79
13.2.3 Other applicable documents for installing and operating the condensate pump
....... 79
13.2.4 Selecting the installation location
............................................................................................... 79
13.2.5 Electrically connecting the condensate pump to EC Tower size 1
................................... 82
13.2.6 Electrically connecting the condensate pump to EC Tower size 2
................................... 84
13.3Installing the blow-out plenum for Upflow units
............................................................................... 87
13.4Installing the blow-out plinth for Downflow units
............................................................................. 88
13.5Installing the raised floor stand
............................................................................................................... 91
13.6Installing the adapter panel for Upflow units...................................................................................... 94
13.6.1 Installing the adapter panel for flexible canvas fittings or duct connections
................ 95
13.6.2 Installing the duct connection
....................................................................................................... 95
13.7Installing the flexible canvas fitting
....................................................................................................... 96
13.8Installing the louver damper for Upflow units..................................................................................... 98
13.8.1 Installing the louver damper
.......................................................................................................... 99
13.8.2 Electrically connecting the louver damper
............................................................................... 99