Viessmann Vitomax HS M73 - Page 5

5
1. Information Symbols ................................................................................................. 7
Note ....................................................................................................... 7
Designation of boiler types .................................................................... 7
Intended use .......................................................................................... 8
Systems with operating temperatures > 110 °C ..................................... 8
2. Functions Installation overview .............................................................................. 9
Description of selected components in a steam boiler system .............. 10
■
Level electrodes
qP
to
qW
................................................................... 10
■
Safety valve
wP
................................................................................... 11
■
Air vent shut-off valve
wQ
(optional) .................................................... 11
■
Steam shut-off valve
wW
...................................................................... 11
■
Blow-down
wT
and
wZ
......................................................................... 12
■
TDS unit
wU
and
wI
............................................................................ 12
■
Water level indicator
rP
...................................................................... 12
■
Pressure monitoring unit
rQ
to
rR
...................................................... 13
■
Sample cooler
rZ
............................................................................... 14
3. Shutdown and preserva-
tion
Shutdown ............................................................................................... 15
■
Steps to shut down the boiler ............................................................. 15
■
Brief interruption in operation ≤ 3 days ............................................... 15
■
Interruption in operation > 3 days ....................................................... 16
Information on maintenance .................................................................. 18
■
Preventing excessive flue gas temperatures ...................................... 18
4. Water quality Standard values for water quality .......................................................... 19
Raw water .............................................................................................. 19
Top-up water .......................................................................................... 19
Condensate return ................................................................................. 19
Water treatment system ......................................................................... 19
Saline boiler feedwater requirements .................................................... 20
■
Organic substances ............................................................................ 20
■
Conditioning ........................................................................................ 21
■
Sampling of water and steam ............................................................. 23
■
Sample analysis ................................................................................. 23
■
Test equipment and standardised analysis procedures ...................... 23
5. Commissioning Recommendation for commissioning ..................................................... 25
Preparations for commissioning ............................................................ 25
Commissioning sequence ...................................................................... 25
■
Commissioning the control panel ....................................................... 25
■
Commissioning the feedwater pumps ................................................ 26
■
Filling the boiler with feedwater .......................................................... 26
■
Adjusting the water level control ......................................................... 26
■
Checking the water level limiter .......................................................... 26
■
Commissioning the burner .................................................................. 27
■
Function check of the safety pressure limiter ..................................... 27
■
Safety valve function check ................................................................ 27
■
TDS controller adjustment .................................................................. 28
■
Checking the closures on the water side ............................................ 28
Commissioning following boiler idle time ............................................... 28
Boilout .................................................................................................... 28
Report .................................................................................................... 28
Instructions ............................................................................................ 28
6. Monitoring Recommendation for monitoring ............................................................ 29
■
Testing intervals .................................................................................. 29
Operator's log ........................................................................................ 29
What to do in the event of operating faults ............................................ 29
Index
Index
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