Euroclima ZHK, Manual

Page: 4 / 142

Instruction Manual ZHK
V07-21.0 3/140
5.1.5 Special features for roof AHUs and device separations at wet areas ............................... 51
5.1.6 Cable gland ........................................................................................................................ 55
5.1.7 Transport lock .................................................................................................................... 56
5.1.8 Securing the position of AHUs ........................................................................................... 56
5.2 Doors ............................................................................................................................ 57
5.3 Dampers ........................................................................................................................ 62
5.4 Airfilters ......................................................................................................................... 62
5.4.1 Panel filter and / or bag filter laterally removable .............................................................. 62
5.4.2 Panel filter and / or bag filters in filter frame ...................................................................... 63
5.4.3 Laterally removable bag filters with clamping mechanism ................................................ 63
5.4.4 HEPA filters ........................................................................................................................ 65
5.4.5 Activated carbon filter ........................................................................................................ 66
5.5 Dampers with external gear wheels ............................................................................... 67
5.6 Hygienic AHUs .............................................................................................................. 67
6 Installation ............................................................................................................................ 68
6.1 Heat exchanger connection ........................................................................................... 68
6.1.1 General notes .................................................................................................................... 68
6.1.2 Steam heat exchanger ....................................................................................................... 70
6.1.3 Plate heat exchangers for refrigeration circuits ................................................................. 71
6.2 Humidifier, indirect adiabatic cooling ............................................................................. 72
6.2.1 Water quality ...................................................................................................................... 72
6.2.2 Protection of the drinking water against pollution .............................................................. 73
6.2.3 Special indications for different humidification systems .................................................... 73
Spray humidifier
–
Installation of the pump circuit .......................................................... 73
Evaporative humidifier .................................................................................................... 77
High pressure spray humidifier ....................................................................................... 77
Steam humidifier ............................................................................................................. 77
6.3 Drain for condensate and excess water ......................................................................... 77
6.3.1 Standard siphons ............................................................................................................... 78
6.3.2 Ball Siphons ....................................................................................................................... 79
6.4 Duct connection
–
airside connection to AHU ................................................................ 80
6.4.1 Requirements ..................................................................................................................... 80
6.4.2 Insulation of fresh air damper ............................................................................................ 83
6.5 Pumps ........................................................................................................................... 83
6.6 Freeze protection measures .......................................................................................... 83
7 Electrical connection ............................................................................................................ 84
7.1 Connecting to an external protective conductor system ................................................. 84
7.2 AC motors ..................................................................................................................... 84
7.3 EC motors ..................................................................................................................... 89
7.4 Main switch (emergency stop switch) ............................................................................ 89
7.5 Variable, frequency-controlled drives (VFD, frequency converters) ............................... 90
7.6 Electric heaters .............................................................................................................. 91
7.6.1 AHUs equipped by EUROCLIMA with control ................................................................... 91
7.6.2 AHUs which are not equipped from EUROCLIMA with control ......................................... 93
7.7 Differential pressure restriction for plate heat exchangers ............................................. 94
7.7.1 General indications ............................................................................................................ 94
7.7.2 Prevention measures ......................................................................................................... 94
7.7.3 Pressure monitoring with differential pressure switch ....................................................... 95
7.8 Frost protection for plate heat exchanger ...................................................................... 96
7.9 Lighting .......................................................................................................................... 97
7.10 UV section ..................................................................................................................... 97
8 Commissioning ..................................................................................................................... 98
8.1 Preliminary steps ........................................................................................................... 98
8.1.1 Variable frequency controlled drives (frequency converter) - parameters ......................... 98
8.1.2 Airflow measurement by differential pressure measurement at the fan .......................... 101
8.1.3 Heat exchanger ................................................................................................................ 102
8.1.4 Electric heater .................................................................................................................. 103