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Subject to change without notice | 83054200hUK – Translation into English of the original German operating manual | ait-deutschland GmbH
Contents
INFORMATION FOR USERS AND QUALIFIED
PERSONNEL
PLEASE READ FIRST ..................................................................2
SYMBOLS .....................................................................................2
INTENDED USE ..........................................................................4
EXCLUSION OF LIABILITY ......................................................4
EC CONFORMITY .....................................................................4
SAFETY .........................................................................................4
CUSTOMER SERVICE ................................................................5
WARRANTY / GUARANTEE ...................................................5
DISPOSAL ....................................................................................5
OPERATING PRINCIPLE OF HEAT PUMPS ...........................6
AREA OF UTILIZATION ...........................................................6
HEAT QUANTITY RECORDING ............................................6
OPERATION ................................................................................6
CARE OF THE UNIT ..................................................................7
MAINTENANCE OF THE UNIT ..............................................7
Cleaning and rinsing of unit components..........................7
MALFUNCTIONS .......................................................................7
INSTRUCTIONS FOR QUALIFIED TECHNICIANS
SCOPE OF DELIVERY ................................................................8
INSTALLATION AND ASSEMBLY ...........................................9
Installation location ..............................................................9
Transport to installation location ......................................9
Sound ....................................................................................10
Installation ............................................................................13
Attaching the air flow baffles ............................................15
Installation / connection to heating circuit ....................17
Condensate discharge ........................................................19
PRESSURE RELIEF .....................................................................19
OVERFLOW VALVE ..................................................................19
BUFFER TANK...........................................................................19
CIRCULATING PUMPS ...........................................................19
WATER HEATING ....................................................................19
HOT-WATER TANK .................................................................20
ELECTRICAL CONNECTIONS .............................................20
RINSING, FILLING AND BLEEDING THE SYSTEM ..........23
Water quality of the fill and additional
water in hot water heating systems ..........................23
INSULATING THE HYDRAULIC CONNECTIONS ..........25
SET THE OVERFLOW VALVE .................................................25
COMMISSIONING ...................................................................26
Safety temperature limiter ................................................26
DISMANTLING .........................................................................27
TECHNICAL DATA / SCOPE OF DELIVERY
LW 71A – LW 121A ............................................................28
LW 140A – LW 310A ..........................................................30
PERFORMANCE CURVES
LW 71A .................................................................................32
LW 81A .................................................................................33
LW 101A ...............................................................................34
LW 121A ...............................................................................35
LW 140A ...............................................................................36
LW 180A ...............................................................................37
LW 251A ...............................................................................38
LW 310A ...............................................................................39
DIMENSIONAL DRAWINGS
LW 71A – LW 81A ............................................................. 40
LW 101A ...............................................................................41
LW 121A ...............................................................................42
LW 140A – LW 180A .........................................................43
LW 251A .............................................................................. 44
LW 310A ...............................................................................45
INSTALLATION PLANS
LW 71A – LW 81A ..............................................................46
LW 101A ...............................................................................47
LW 121A .............................................................................. 48
LW 140A – LW 180A .........................................................49
LW 251A ...............................................................................50
LW 310A ...............................................................................51
HYDRAULIC INTEGRATION
LW 71A – LW 251A
Row tank ..............................................................................52
Separate buffer tank ...........................................................53
LW 310A
Row tank ..............................................................................54
Separate buffer tank ...........................................................55
Legend Hydraulic integration ............................................56
TERMINAL DIAGRAMS
LW 71A – LW 81A ..............................................................57
LW 101A – LW 251A ..........................................................58
LW 310A ...............................................................................59
CIRCUIT DIAGRAMS
LW 71A – LW 81A ..............................................................60
LW 101A – LW 121A ..........................................................62
LW 140A .............................................................................. 64
LW 180A ...............................................................................66
LW 251A ...............................................................................68
LW 310A ...............................................................................71
EC DECLARATION OF CONFORMITY ..............................75
