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Subject to change without notice | 83053600gUK – Translation of the original operating manual | ait-deutschland GmbH
Contents
Please read rst ........................................................ 2
Symbols ..................................................................... 2
Intended use .............................................................. 4
Disclaimer .................................................................. 4
Safety ........................................................................ 4
Contact ...................................................................... 5
Warranty / Guarantee ................................................ 5
Disposal ..................................................................... 5
Heat metering ............................................................ 5
Operation ................................................................... 5
Care of the unit .......................................................... 5
Maintenance of the unit ............................................. 6
Malfunctions .............................................................. 6
Scope of delivery ....................................................... 7
Components of the unit ........................................ 8
Installation ................................................................. 9
Installation location ............................................... 9
Transport to installation location .......................... 9
Installation ............................................................ 9
Installation / Hydraulic connection
to heating circuit .............................................11
Safety assembly ..................................................11
Expansion vessels ..............................................11
Electrical connections ............................................. 12
Connect BUS cable ............................................ 13
Flushing, lling and bleeding the system ................. 14
Flushing, lling and bleeding
the heating circuit .......................................... 14
Insulating the hydraulic connections ....................... 15
Set the overow valve ............................................. 15
Control element ....................................................... 16
Commissioning ........................................................ 17
Safety temperature limiter .................................. 17
Dismantling .............................................................. 17
Technical data / scope of delivery ............................ 18
HMD 1/E ............................................................. 18
HMD 1/RE .......................................................... 19
Free compression .................................................... 20
Dimensional drawings
HMD 1/E ............................................................. 21
HMD 1/RE .......................................................... 22
Drilling pattern ......................................................... 23
Installation plans
HMD 1/E ............................................................. 24
HMD 1/RE .......................................................... 25
Hydraulic integration
Row tank ............................................................ 26
Separate buer tank ........................................... 27
Unit variant R (cooling) ....................................... 28
Legend Hydraulic integration.............................. 29
Terminal diagram ..................................................... 30
Circuit diagrams
HMD 1/E ............................................................. 31
HMD 1/RE .......................................................... 33
EC declaration of conformity ................................... 35