Translation of original operating instructions
4
AL-KO AT4F ATEX
5.4.2
Unit arrangement next to one another ......................................................................................................44
5.4.2.1 Version of floor/roof assembly with unit frame profile
.............................................................................44
5.4.2.2 Version of floor/roof assembly without unit frame profile
........................................................................45
5.5
Outdoor installation ..................................................................................................................................47
5.5.1
Roof frame - floor assembly version with unit frame profile
.....................................................................47
5.5.1.1 Roof frame preassembled on-site .............................................................................................................47
5.5.1.2 Factory-mounted base frame ....................................................................................................................48
5.5.2
Roof frame - floor assembly version without unit frame profile
...............................................................49
5.5.2.1 Roof frame preassembled on-site .............................................................................................................49
5.5.2.2 Factory-mounted base frame ....................................................................................................................50
5.5.2.3 Sealing of the unit separation points with solvent welding agent for weatherproof units .........................51
5.5.2.4 Sealing of the unit separation points with hot air welding for weatherproof units ....................................57
5.6
Units with split plate heat exchanger (option) ..........................................................................................58
5.7
Additional installation instructions for hygiene units ................................................................................58
5.8
Heat exchanger connection ......................................................................................................................59
5.8.1
Connection of hot water heater (option) ...................................................................................................59
5.8.2
Connection of heater/pumps-cold water air cooler (option) .....................................................................61
5.8.3
Connection of pumps/cold water/air cooler (option) ................................................................................64
5.8.4
Steam register ..........................................................................................................................................66
5.8.5
Circulating coil system CCS (recuperative energy recovery) ....................................................................68
5.8.6
Direct evaporator/condenser ....................................................................................................................69
5.9
Mechanical connection .............................................................................................................................70
5.9.1
Duct connection .......................................................................................................................................70
5.9.2
Intake and exhaust hood (option) .............................................................................................................71
5.9.3
Condensate drain connection via siphon ..................................................................................................71
5.9.4
Filling and venting ....................................................................................................................................73
5.10
Electrical connection.................................................................................................................................74
5.10.1 Electric motor ...........................................................................................................................................75
5.10.1.1 Connection of three-phase motors ...........................................................................................................76
5.10.1.2 Circuit with frequency converter - wiring examples ..................................................................................79
5.10.1.3 Connection of EC fans ..............................................................................................................................80
5.10.2 Connection of electric air heater ...............................................................................................................81
5.10.3 Control (switch cabinet) ...........................................................................................................................82
6 Commissioning ........................................................................................... 83
6.1 Principles..................................................................................................................................................83
6.2
Before system start ..................................................................................................................................84
6.2.1
Commissioning of the electric heating coil ...............................................................................................87
6.2.2
Commissioning of fans .............................................................................................................................87
6.2.2.1 Commissioning of fans with belt drive .....................................................................................................88
6.2.2.2 Commissioning of fan free-wheel with direct drive ...................................................................................89
6.2.2.3 Commissioning of the built-in fan (motor outside the air flow)
................................................................90
6.2.3
Heat exchanger commissioning ................................................................................................................92
6.2.3.1 Commissioning of circulating coil system CCS (recuperative energy recovery) .......................................92
6.3
Switching the installation on/off ...............................................................................................................93
6.4
After system start .....................................................................................................................................93
7
Servicing and maintenance ............................................................................ 94
7.1
Safety instructions for servicing and maintenance ...................................................................................94
7.1.1
Qualifications of personnel
.......................................................................................................................96
Summary of Contents for AT4F Series
Page 138: ...Translation of original operating instructions 138 AL KO AT4F ATEX Notes...
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